Resolves issue with parsing comments #2
@ -1,65 +0,0 @@
|
|||||||
name: Test, Build, and Release
|
|
||||||
|
|
||||||
on:
|
|
||||||
push:
|
|
||||||
tags:
|
|
||||||
- '*'
|
|
||||||
|
|
||||||
jobs:
|
|
||||||
test:
|
|
||||||
container:
|
|
||||||
image: docker.matri.cx/nix-runner:v0.1.0
|
|
||||||
credentials:
|
|
||||||
username: ${{ secrets.REGISTRY_USERNAME }}
|
|
||||||
password: ${{ secrets.REGISTRY_PASSWORD }}
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
with:
|
|
||||||
fetch-depth: 0
|
|
||||||
|
|
||||||
- name: Set up cache for Cabal
|
|
||||||
uses: actions/cache@v4
|
|
||||||
with:
|
|
||||||
path: |
|
|
||||||
~/.cache/cabal
|
|
||||||
~/.config/cabal
|
|
||||||
~/.local/state/cabal
|
|
||||||
key: cabal-${{ hashFiles('tricu.cabal') }}
|
|
||||||
restore-keys: |
|
|
||||||
cabal-
|
|
||||||
|
|
||||||
- name: Initialize Cabal and update package list
|
|
||||||
run: |
|
|
||||||
nix develop --command cabal update
|
|
||||||
|
|
||||||
- name: Run test suite
|
|
||||||
run: |
|
|
||||||
nix develop --command cabal test
|
|
||||||
|
|
||||||
build:
|
|
||||||
needs: test
|
|
||||||
container:
|
|
||||||
image: docker.matri.cx/nix-runner:v0.1.0
|
|
||||||
credentials:
|
|
||||||
username: ${{ secrets.REGISTRY_USERNAME }}
|
|
||||||
password: ${{ secrets.REGISTRY_PASSWORD }}
|
|
||||||
steps:
|
|
||||||
- uses: actions/checkout@v3
|
|
||||||
with:
|
|
||||||
fetch-depth: 0
|
|
||||||
|
|
||||||
- name: Build and shrink binary
|
|
||||||
run: |
|
|
||||||
nix build
|
|
||||||
cp -L ./result/bin/tricu ./tricu
|
|
||||||
chmod 755 ./tricu
|
|
||||||
nix develop --command upx ./tricu
|
|
||||||
|
|
||||||
- name: Release binary
|
|
||||||
uses: akkuman/gitea-release-action@v1
|
|
||||||
with:
|
|
||||||
files: |-
|
|
||||||
./tricu
|
|
||||||
token: '${{ secrets.RELEASE_TOKEN }}'
|
|
||||||
body: '${{ gitea.event.head_commit.message }}'
|
|
||||||
prerelease: true
|
|
||||||
18
.gitignore
vendored
18
.gitignore
vendored
@ -1,12 +1,14 @@
|
|||||||
|
bin/
|
||||||
|
data/Purr.sqlite
|
||||||
|
data/encryptionKey
|
||||||
|
/result
|
||||||
|
/config.dhall
|
||||||
|
/Dockerfile
|
||||||
|
/docker-stack.yml
|
||||||
|
.stack-work/
|
||||||
*.swp
|
*.swp
|
||||||
*.txt
|
dist*
|
||||||
*~
|
*~
|
||||||
.env
|
.env
|
||||||
.stack-work/
|
|
||||||
/Dockerfile
|
|
||||||
/config.dhall
|
|
||||||
/result
|
|
||||||
WD
|
WD
|
||||||
bin/
|
*.hs.txt
|
||||||
dist*
|
|
||||||
.tricu_history
|
|
||||||
|
|||||||
118
README.md
118
README.md
@ -2,103 +2,61 @@
|
|||||||
|
|
||||||
## Introduction
|
## Introduction
|
||||||
|
|
||||||
tricu (pronounced "tree-shoe") is a purely functional interpreted language implemented in Haskell. It is fundamentally based on the application of [Tree Calculus](https://github.com/barry-jay-personal/typed_tree_calculus/blob/main/typed_program_analysis.pdf) terms, but minimal syntax sugar is included to provide a useful programming tool.
|
tricu (pronounced like "tree-shoe" in English) is a purely functional interpreted language implemented in Haskell. [I'm](https://eversole.co) developing tricu to further research the possibilities offered by the various forms of [Tree Calculi](https://github.com/barry-jay-personal/typed_tree_calculus/blob/main/typed_program_analysis.pdf).
|
||||||
|
|
||||||
*tricu is under active development and you should expect breaking changes with every commit.*
|
tricu offers minimal syntax sugar yet manages to provide a complete, intuitive, and familiar programming environment. There is great power in simplicity. tricu offers:
|
||||||
|
|
||||||
tricu is the word for "tree" in Lojban: `(x1) is a tree of species/cultivar (x2)`.
|
1. `t` operator behaving by the rules of Tree Calculus
|
||||||
|
1. Function definitions/assignments
|
||||||
|
1. Lambda abstractions eliminated to Tree Calculus forms
|
||||||
|
1. List, Number, and String literals
|
||||||
|
1. Parentheses for grouping function application
|
||||||
|
|
||||||
## Features
|
These features move us cleanly out of the [turing tarpit](https://en.wikipedia.org/wiki/Turing_tarpit) territory that you may find yourself in if you try working only with the `t` operator.
|
||||||
|
|
||||||
- Tree Calculus operator: `t`
|
tricu is the word for "tree" in Lojban: `(x1) is a tree of species/cultivar (x2)`. This project was named "sapling" until I discovered the name is already being used for other (completely unrelated) programming language development projects.
|
||||||
- Immutable definitions: `x = t t`
|
|
||||||
- Lambda abstraction: `id = (a : a)`
|
|
||||||
- List, Number, and String literals: `[(2) ("Hello")]`
|
|
||||||
- Function application: `not (not false)`
|
|
||||||
- Higher order/first-class functions: `map (a : append a "!") [("Hello")]`
|
|
||||||
- Intensionality blurs the distinction between functions and data (see REPL examples)
|
|
||||||
- Simple module system for code organization
|
|
||||||
|
|
||||||
## REPL examples
|
## What does it look like?
|
||||||
|
|
||||||
```
|
```
|
||||||
tricu < -- Anything after `--` on a single line is a comment
|
-- Anything after `--` on a single line is a comment
|
||||||
tricu < id = (a : a) -- Lambda abstraction is eliminated to tree calculus terms
|
-- We can define functions or "variables" as Tree Calculus values
|
||||||
tricu < head (map (i : append i " world!") [("Hello, ")])
|
false = t
|
||||||
tricu > "Hello, world!"
|
_ = t
|
||||||
tricu < id (head (map (i : append i " world!") [("Hello, ")]))
|
true = t t
|
||||||
tricu > "Hello, world!"
|
-- We can define functions as lambda expressions that are eliminated to Tree
|
||||||
|
-- Calculus terms.
|
||||||
|
id = (\a : a) -- `id` evaluates to the TC form of: t (t (t t)) t
|
||||||
|
triage = (\a b c : t (t a b) c)
|
||||||
|
-- Intensionality! We can inspect program structure, not just inputs/outputs:
|
||||||
|
test = triage "Leaf" (\_ : "Stem") (\_ _ : "Fork")
|
||||||
|
|
||||||
tricu < -- Intensionality! We can inspect the structure of a function or data.
|
-- REPL
|
||||||
tricu < triage = (a b c : t (t a b) c)
|
-- `tricu <` is the input prompt
|
||||||
tricu < test = triage "Leaf" (z : "Stem") (a b : "Fork")
|
-- `tricu >` is the Tree Calculus form output. Most are elided below.
|
||||||
|
-- `READ -:` is an attempt to interpret the TC output as strings/numbers.
|
||||||
|
tricu < test t
|
||||||
|
tricu > Fork (Fork Leaf (Fork ...) ... )
|
||||||
|
READ -: "Leaf"
|
||||||
tricu < test (t t)
|
tricu < test (t t)
|
||||||
tricu > "Stem"
|
READ -: "Stem"
|
||||||
tricu < -- We can even convert a term back to source code (/demos/toSource.tri)
|
tricu < test (t t t)
|
||||||
tricu < toSource not?
|
READ -: "Fork"
|
||||||
tricu > "(t (t (t t) (t t t)) (t t (t t t)))"
|
tricu < map (\i : listConcat i " is super cool!") [("Tree Calculus") ("Intensionality") ("tricu")]
|
||||||
tricu < -- or calculate its size (/demos/size.tri)
|
READ -: ["Tree Calculus is super cool!", "Intensionality is super cool!", "tricu is super cool!"]
|
||||||
tricu < size not?
|
|
||||||
tricu > 12
|
|
||||||
|
|
||||||
tricu < -- REPL Commands:
|
|
||||||
tricu < !definitions -- Lists all available definitions
|
|
||||||
tricu < !output -- Change output format (Tree, FSL, AST, etc.)
|
|
||||||
tricu < !import -- Import definitions from a file
|
|
||||||
tricu < !exit -- Exit the REPL
|
|
||||||
tricu < !clear -- ANSI screen clear
|
|
||||||
tricu < !save -- Save all REPL definitions to a file that you can !import
|
|
||||||
tricu < !reset -- Clear all REPL definitions
|
|
||||||
tricu < !version -- Print tricu version
|
|
||||||
```
|
```
|
||||||
|
|
||||||
## Installation and Use
|
## Installation
|
||||||
|
|
||||||
You can easily build and run this project using [Nix](https://nixos.org/download/).
|
You can easily build and/or run this project using [Nix](https://nixos.org/download/).
|
||||||
|
|
||||||
- Quick Start (REPL):
|
- Run REPL immediately:
|
||||||
- `nix run git+https://git.eversole.co/James/tricu`
|
- `nix run git+https://git.eversole.co/James/tricu`
|
||||||
- Build executable in `./result/bin`:
|
- Build REPL executable in `./result/bin`:
|
||||||
- `nix build git+https://git.eversole.co/James/tricu`
|
- `nix build git+https://git.eversole.co/James/tricu`
|
||||||
|
|
||||||
`./result/bin/tricu --help`
|
|
||||||
|
|
||||||
```
|
|
||||||
tricu Evaluator and REPL
|
|
||||||
|
|
||||||
tricu [COMMAND] ... [OPTIONS]
|
|
||||||
tricu: Exploring Tree Calculus
|
|
||||||
|
|
||||||
Common flags:
|
|
||||||
-? --help Display help message
|
|
||||||
-V --version Print version information
|
|
||||||
|
|
||||||
tricu [repl] [OPTIONS]
|
|
||||||
Start interactive REPL
|
|
||||||
|
|
||||||
tricu eval [OPTIONS]
|
|
||||||
Evaluate tricu and return the result of the final expression.
|
|
||||||
|
|
||||||
-f --file=FILE Input file path(s) for evaluation.
|
|
||||||
Defaults to stdin.
|
|
||||||
-t --form=FORM Optional output form: (tree|fsl|ast|ternary|ascii|decode).
|
|
||||||
Defaults to tricu-compatible `t` tree form.
|
|
||||||
|
|
||||||
tricu decode [OPTIONS]
|
|
||||||
Decode a Tree Calculus value into a string representation.
|
|
||||||
|
|
||||||
-f --file=FILE Optional input file path to attempt decoding.
|
|
||||||
Defaults to stdin.
|
|
||||||
```
|
|
||||||
|
|
||||||
## Collaborating
|
|
||||||
|
|
||||||
I am happy to accept issue reports, pull requests, or questions about tricu [via email](mailto:james@eversole.co).
|
|
||||||
|
|
||||||
If you want to collaborate but don't want to email back-and-forth, please reach out via email once to let me know and I will provision a git.eversole.co account for you.
|
|
||||||
|
|
||||||
## Acknowledgements
|
## Acknowledgements
|
||||||
|
|
||||||
Tree Calculus was discovered by [Barry Jay](https://github.com/barry-jay-personal/blog).
|
Tree Calculus was discovered by [Barry Jay](https://github.com/barry-jay-personal/blog).
|
||||||
|
|
||||||
[treecalcul.us](https://treecalcul.us) is an excellent website with an intuitive Tree Calculus code playground created by [Johannes Bader](https://johannes-bader.com/) that introduced me to Tree Calculus.
|
[treecalcul.us](https://treecalcul.us) is an excellent website with an intuitive playground created by [Johannes Bader](https://johannes-bader.com/) that introduced me to Tree Calculus. If tricu sounds interesting but compiling this repo sounds like a hassle, you should check out his site.
|
||||||
|
|||||||
@ -1,37 +0,0 @@
|
|||||||
!import "../lib/base.tri" !Local
|
|
||||||
!import "../lib/list.tri" !Local
|
|
||||||
|
|
||||||
main = lambdaEqualsTC
|
|
||||||
|
|
||||||
-- We represent `false` with a Leaf and `true` with a Stem Leaf
|
|
||||||
demo_false = t
|
|
||||||
demo_true = t t
|
|
||||||
|
|
||||||
-- Tree Calculus representation of the Boolean `not` function
|
|
||||||
not_TC? = t (t (t t) (t t t)) (t t (t t t))
|
|
||||||
|
|
||||||
-- /demos/toSource.tri contains an explanation of `triage`
|
|
||||||
demo_triage = a b c : t (t a b) c
|
|
||||||
demo_matchBool = a b : demo_triage b (_ : a) (_ _ : a)
|
|
||||||
|
|
||||||
-- Lambda representation of the Boolean `not` function
|
|
||||||
not_Lambda? = demo_matchBool demo_false demo_true
|
|
||||||
|
|
||||||
-- As tricu eliminates Lambda terms to SKI combinators, the tree form of many
|
|
||||||
-- functions defined via Lambda terms are larger than the most efficient TC
|
|
||||||
-- representation possible. Between different languages that evaluate to tree
|
|
||||||
-- calculus terms, the exact implementation of Lambda elimination may differ
|
|
||||||
-- and lead to different trees even if they share extensional behavior.
|
|
||||||
|
|
||||||
-- Let's see if these are the same:
|
|
||||||
lambdaEqualsTC = equal? not_TC? not_Lambda?
|
|
||||||
|
|
||||||
-- Here are some checks to verify their extensional behavior is the same:
|
|
||||||
true_TC? = not_TC? demo_false
|
|
||||||
false_TC? = not_TC? demo_true
|
|
||||||
|
|
||||||
true_Lambda? = not_Lambda? demo_false
|
|
||||||
false_Lambda? = not_Lambda? demo_true
|
|
||||||
|
|
||||||
bothTrueEqual? = equal? true_TC? true_Lambda?
|
|
||||||
bothFalseEqual? = equal? false_TC? false_Lambda?
|
|
||||||
@ -1,64 +0,0 @@
|
|||||||
!import "../lib/base.tri" Lib
|
|
||||||
!import "../lib/list.tri" !Local
|
|
||||||
|
|
||||||
main = exampleTwo
|
|
||||||
-- Level Order Traversal of a labelled binary tree
|
|
||||||
-- Objective: Print each "level" of the tree on a separate line
|
|
||||||
--
|
|
||||||
-- We model labelled binary trees as nested lists where values act as labels. We
|
|
||||||
-- require explicit notation of empty nodes. Empty nodes can be represented
|
|
||||||
-- with an empty list, `[]`, which evaluates to a single node `t`.
|
|
||||||
--
|
|
||||||
-- Example tree inputs:
|
|
||||||
-- [("1") [("2") [("4") t t] t] [("3") [("5") t t] [("6") t t]]]]
|
|
||||||
-- Graph:
|
|
||||||
-- 1
|
|
||||||
-- / \
|
|
||||||
-- 2 3
|
|
||||||
-- / / \
|
|
||||||
-- 4 5 6
|
|
||||||
|
|
||||||
label = node : head node
|
|
||||||
|
|
||||||
left = node : (if (emptyList? node)
|
|
||||||
[]
|
|
||||||
(if (emptyList? (tail node))
|
|
||||||
[]
|
|
||||||
(head (tail node))))
|
|
||||||
|
|
||||||
right = node : (if (emptyList? node)
|
|
||||||
[]
|
|
||||||
(if (emptyList? (tail node))
|
|
||||||
[]
|
|
||||||
(if (emptyList? (tail (tail node)))
|
|
||||||
[]
|
|
||||||
(head (tail (tail node))))))
|
|
||||||
|
|
||||||
processLevel = y (self queue : if (emptyList? queue)
|
|
||||||
[]
|
|
||||||
(pair (map label queue) (self (filter
|
|
||||||
(node : not? (emptyList? node))
|
|
||||||
(append (map left queue) (map right queue))))))
|
|
||||||
|
|
||||||
levelOrderTraversal_ = a : processLevel (t a t)
|
|
||||||
|
|
||||||
toLineString = y (self levels : if (emptyList? levels)
|
|
||||||
""
|
|
||||||
(append
|
|
||||||
(append (map (x : append x " ") (head levels)) "")
|
|
||||||
(if (emptyList? (tail levels)) "" (append (t (t 10 t) t) (self (tail levels))))))
|
|
||||||
|
|
||||||
levelOrderToString = s : toLineString (levelOrderTraversal_ s)
|
|
||||||
|
|
||||||
flatten = foldl (acc x : append acc x) ""
|
|
||||||
|
|
||||||
levelOrderTraversal = s : append (t 10 t) (flatten (levelOrderToString s))
|
|
||||||
|
|
||||||
exampleOne = levelOrderTraversal [("1")
|
|
||||||
[("2") [("4") t t] t]
|
|
||||||
[("3") [("5") t t] [("6") t t]]]
|
|
||||||
|
|
||||||
exampleTwo = levelOrderTraversal [("1")
|
|
||||||
[("2") [("4") [("8") t t] [("9") t t]]
|
|
||||||
[("6") [("10") t t] [("12") t t]]]
|
|
||||||
[("3") [("5") [("11") t t] t] [("7") t t]]]
|
|
||||||
@ -1,37 +0,0 @@
|
|||||||
!import "../lib/patterns.tri" !Local
|
|
||||||
|
|
||||||
-- We can do conditional pattern matching by providing a list of lists, where
|
|
||||||
-- each sublist contains a boolean expression and a function to return if said
|
|
||||||
-- boolean expression evaluates to true.
|
|
||||||
|
|
||||||
value = 42
|
|
||||||
main = match value [[(equal? "Hello") (_ : ", world!")] [(equal? 42) (_ : "The answer.")]]
|
|
||||||
|
|
||||||
-- < main
|
|
||||||
-- > "The answer."
|
|
||||||
|
|
||||||
matchExample = (x : match x
|
|
||||||
[[(equal? 1) (_ : "one")]
|
|
||||||
[(equal? 2) (_ : "two")]
|
|
||||||
[(equal? 3) (_ : "three")]
|
|
||||||
[(equal? 4) (_ : "four")]
|
|
||||||
[(equal? 5) (_ : "five")]
|
|
||||||
[(equal? 6) (_ : "six")]
|
|
||||||
[(equal? 7) (_ : "seven")]
|
|
||||||
[(equal? 8) (_ : "eight")]
|
|
||||||
[(equal? 9) (_ : "nine")]
|
|
||||||
[(equal? 10) (_ : "ten")]
|
|
||||||
[ otherwise (_ : "I ran out of fingers!")]])
|
|
||||||
|
|
||||||
-- < matchExample 3
|
|
||||||
-- > "three"
|
|
||||||
-- < matchExample 5
|
|
||||||
-- > "five"
|
|
||||||
-- < matchExample 9
|
|
||||||
-- > "nine"
|
|
||||||
-- < matchExample 11
|
|
||||||
-- > "I ran out of fingers!"
|
|
||||||
-- < matchExample "three"
|
|
||||||
-- > "I ran out of fingers!"
|
|
||||||
-- < matchExample [("hello") ("world")]
|
|
||||||
-- > "I ran out of fingers!"
|
|
||||||
@ -1,11 +0,0 @@
|
|||||||
!import "../lib/base.tri" !Local
|
|
||||||
!import "../lib/list.tri" !Local
|
|
||||||
|
|
||||||
main = size size
|
|
||||||
|
|
||||||
size = x : y (self x : compose succ (triage
|
|
||||||
id
|
|
||||||
self
|
|
||||||
(x y : compose (self x) (self y))
|
|
||||||
x)
|
|
||||||
) x 0
|
|
||||||
@ -1,50 +0,0 @@
|
|||||||
!import "../lib/base.tri" !Local
|
|
||||||
!import "../lib/list.tri" !Local
|
|
||||||
|
|
||||||
main = toSource not?
|
|
||||||
-- Thanks to intensionality, we can inspect the structure of a given value
|
|
||||||
-- even if it's a function. This includes lambdas which are eliminated to
|
|
||||||
-- Tree Calculus (TC) terms during evaluation.
|
|
||||||
|
|
||||||
-- `triage` takes four arguments: the first three represent behaviors for each
|
|
||||||
-- structural case in Tree Calculus (Leaf, Stem, and Fork).
|
|
||||||
-- The fourth argument is the value whose structure is inspected. By evaluating
|
|
||||||
-- the Tree Calculus term, `triage` enables branching logic based on the term's
|
|
||||||
-- shape, making it possible to perform structure-specific operations such as
|
|
||||||
-- reconstructing the terms' source code representation.
|
|
||||||
-- triage = (\leaf stem fork : t (t leaf stem) fork)
|
|
||||||
|
|
||||||
-- Base case of a single Leaf
|
|
||||||
sourceLeaf = t (head "t")
|
|
||||||
|
|
||||||
-- Stem case
|
|
||||||
sourceStem = convert : (a rest :
|
|
||||||
t (head "(") -- Start with a left parenthesis "(".
|
|
||||||
(t (head "t") -- Add a "t"
|
|
||||||
(t (head " ") -- Add a space.
|
|
||||||
(convert a -- Recursively convert the argument.
|
|
||||||
(t (head ")") rest))))) -- Close with ")" and append the rest.
|
|
||||||
|
|
||||||
-- Fork case
|
|
||||||
sourceFork = convert : (a b rest :
|
|
||||||
t (head "(") -- Start with a left parenthesis "(".
|
|
||||||
(t (head "t") -- Add a "t"
|
|
||||||
(t (head " ") -- Add a space.
|
|
||||||
(convert a -- Recursively convert the first arg.
|
|
||||||
(t (head " ") -- Add another space.
|
|
||||||
(convert b -- Recursively convert the second arg.
|
|
||||||
(t (head ")") rest))))))) -- Close with ")" and append the rest.
|
|
||||||
|
|
||||||
-- Wrapper around triage
|
|
||||||
toSource_ = y (self arg :
|
|
||||||
triage
|
|
||||||
sourceLeaf -- `triage` "a" case, Leaf
|
|
||||||
(sourceStem self) -- `triage` "b" case, Stem
|
|
||||||
(sourceFork self) -- `triage` "c" case, Fork
|
|
||||||
arg) -- The term to be inspected
|
|
||||||
|
|
||||||
-- toSource takes a single TC term and returns a String
|
|
||||||
toSource = v : toSource_ v ""
|
|
||||||
|
|
||||||
exampleOne = toSource true -- OUT: "(t t)"
|
|
||||||
exampleTwo = toSource not? -- OUT: "(t (t (t t) (t t t)) (t t (t t t)))"
|
|
||||||
@ -32,12 +32,10 @@
|
|||||||
defaultPackage = self.packages.${system}.default;
|
defaultPackage = self.packages.${system}.default;
|
||||||
|
|
||||||
devShells.default = pkgs.mkShell {
|
devShells.default = pkgs.mkShell {
|
||||||
buildInputs = with pkgs; [
|
buildInputs = with pkgs.haskellPackages; [
|
||||||
haskellPackages.cabal-install
|
cabal-install
|
||||||
haskellPackages.ghc-events
|
ghcid
|
||||||
haskellPackages.ghcid
|
|
||||||
customGHC
|
customGHC
|
||||||
upx
|
|
||||||
];
|
];
|
||||||
inputsFrom = builtins.attrValues self.packages.${system};
|
inputsFrom = builtins.attrValues self.packages.${system};
|
||||||
};
|
};
|
||||||
|
|||||||
74
lib/base.tri
74
lib/base.tri
@ -1,74 +0,0 @@
|
|||||||
false = t
|
|
||||||
_ = t
|
|
||||||
true = t t
|
|
||||||
id = a : a
|
|
||||||
const = a b : a
|
|
||||||
pair = t
|
|
||||||
if = cond then else : t (t else (t t then)) t cond
|
|
||||||
|
|
||||||
y = ((mut wait fun : wait mut (x : fun (wait mut x)))
|
|
||||||
(x : x x)
|
|
||||||
(a0 a1 a2 : t (t a0) (t t a2) a1))
|
|
||||||
|
|
||||||
compose = f g x : f (g x)
|
|
||||||
|
|
||||||
triage = leaf stem fork : t (t leaf stem) fork
|
|
||||||
test = triage "Leaf" (_ : "Stem") (_ _ : "Fork")
|
|
||||||
|
|
||||||
matchBool = (ot of : triage
|
|
||||||
of
|
|
||||||
(_ : ot)
|
|
||||||
(_ _ : ot)
|
|
||||||
)
|
|
||||||
|
|
||||||
lAnd = (triage
|
|
||||||
(_ : false)
|
|
||||||
(_ x : x)
|
|
||||||
(_ _ x : x))
|
|
||||||
|
|
||||||
lOr = (triage
|
|
||||||
(x : x)
|
|
||||||
(_ _ : true)
|
|
||||||
(_ _ _ : true))
|
|
||||||
|
|
||||||
matchPair = a : triage _ _ a
|
|
||||||
|
|
||||||
not? = matchBool false true
|
|
||||||
and? = matchBool id (_ : false)
|
|
||||||
|
|
||||||
or? = (x z :
|
|
||||||
matchBool
|
|
||||||
(matchBool true true z)
|
|
||||||
(matchBool true false z)
|
|
||||||
x)
|
|
||||||
|
|
||||||
xor? = (x z :
|
|
||||||
matchBool
|
|
||||||
(matchBool false true z)
|
|
||||||
(matchBool true false z)
|
|
||||||
x)
|
|
||||||
|
|
||||||
equal? = y (self : triage
|
|
||||||
(triage
|
|
||||||
true
|
|
||||||
(_ : false)
|
|
||||||
(_ _ : false))
|
|
||||||
(ax :
|
|
||||||
triage
|
|
||||||
false
|
|
||||||
(self ax)
|
|
||||||
(_ _ : false))
|
|
||||||
(ax ay :
|
|
||||||
triage
|
|
||||||
false
|
|
||||||
(_ : false)
|
|
||||||
(bx by : lAnd (self ax bx) (self ay by))))
|
|
||||||
|
|
||||||
succ = y (self :
|
|
||||||
triage
|
|
||||||
1
|
|
||||||
t
|
|
||||||
(triage
|
|
||||||
(t (t t))
|
|
||||||
(_ tail : t t (self tail))
|
|
||||||
t))
|
|
||||||
70
lib/list.tri
70
lib/list.tri
@ -1,70 +0,0 @@
|
|||||||
!import "base.tri" !Local
|
|
||||||
|
|
||||||
_ = t
|
|
||||||
|
|
||||||
matchList = a b : triage a _ b
|
|
||||||
|
|
||||||
emptyList? = matchList true (_ _ : false)
|
|
||||||
head = matchList t (head _ : head)
|
|
||||||
tail = matchList t (_ tail : tail)
|
|
||||||
|
|
||||||
append = y (self : matchList
|
|
||||||
(k : k)
|
|
||||||
(h r k : pair h (self r k)))
|
|
||||||
|
|
||||||
lExist? = y (self x : matchList
|
|
||||||
false
|
|
||||||
(h z : or? (equal? x h) (self x z)))
|
|
||||||
|
|
||||||
map_ = y (self :
|
|
||||||
matchList
|
|
||||||
(_ : t)
|
|
||||||
(head tail f : pair (f head) (self tail f)))
|
|
||||||
map = f l : map_ l f
|
|
||||||
|
|
||||||
filter_ = y (self : matchList
|
|
||||||
(_ : t)
|
|
||||||
(head tail f : matchBool (t head) id (f head) (self tail f)))
|
|
||||||
filter = f l : filter_ l f
|
|
||||||
|
|
||||||
foldl_ = y (self f l x : matchList (acc : acc) (head tail acc : self f tail (f acc head)) l x)
|
|
||||||
foldl = f x l : foldl_ f l x
|
|
||||||
|
|
||||||
foldr_ = y (self x f l : matchList x (head tail : f (self x f tail) head) l)
|
|
||||||
foldr = f x l : foldr_ x f l
|
|
||||||
|
|
||||||
length = y (self : matchList
|
|
||||||
0
|
|
||||||
(_ tail : succ (self tail)))
|
|
||||||
|
|
||||||
reverse = y (self : matchList
|
|
||||||
t
|
|
||||||
(head tail : append (self tail) (pair head t)))
|
|
||||||
|
|
||||||
snoc = y (self x : matchList
|
|
||||||
(pair x t)
|
|
||||||
(h z : pair h (self x z)))
|
|
||||||
|
|
||||||
count = y (self x : matchList
|
|
||||||
0
|
|
||||||
(h z : matchBool
|
|
||||||
(succ (self x z))
|
|
||||||
(self x z)
|
|
||||||
(equal? x h)))
|
|
||||||
|
|
||||||
last = y (self : matchList
|
|
||||||
t
|
|
||||||
(hd tl : matchBool
|
|
||||||
hd
|
|
||||||
(self tl)
|
|
||||||
(emptyList? tl)))
|
|
||||||
|
|
||||||
all? = y (self pred : matchList
|
|
||||||
true
|
|
||||||
(h z : and? (pred h) (self pred z)))
|
|
||||||
|
|
||||||
any? = y (self pred : matchList
|
|
||||||
false
|
|
||||||
(h z : or? (pred h) (self pred z)))
|
|
||||||
|
|
||||||
intersect = xs ys : filter (x : lExist? x ys) xs
|
|
||||||
@ -1,24 +0,0 @@
|
|||||||
!import "base.tri" !Local
|
|
||||||
!import "list.tri" List
|
|
||||||
|
|
||||||
match_ = y (self value patterns :
|
|
||||||
triage
|
|
||||||
t
|
|
||||||
(_ : t)
|
|
||||||
(pattern rest :
|
|
||||||
triage
|
|
||||||
t
|
|
||||||
(_ : t)
|
|
||||||
(test result :
|
|
||||||
if (test value)
|
|
||||||
(result value)
|
|
||||||
(self value rest))
|
|
||||||
pattern)
|
|
||||||
patterns)
|
|
||||||
|
|
||||||
match = (value patterns :
|
|
||||||
match_ value (List.map (sublist :
|
|
||||||
pair (List.head sublist) (List.head (List.tail sublist)))
|
|
||||||
patterns))
|
|
||||||
|
|
||||||
otherwise = const (t t)
|
|
||||||
8
shell.nix
Normal file
8
shell.nix
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
{ pkgs ? import <nixpkgs> {} }:
|
||||||
|
let x = pkgs.haskellPackages.ghcWithPackages (hpkgs: with hpkgs; [
|
||||||
|
megaparsec
|
||||||
|
]);
|
||||||
|
in
|
||||||
|
pkgs.mkShell {
|
||||||
|
buildInputs = [ x ];
|
||||||
|
}
|
||||||
272
src/Eval.hs
272
src/Eval.hs
@ -3,195 +3,119 @@ module Eval where
|
|||||||
import Parser
|
import Parser
|
||||||
import Research
|
import Research
|
||||||
|
|
||||||
import Data.List (partition, (\\))
|
|
||||||
import Data.Map (Map)
|
import Data.Map (Map)
|
||||||
|
import Data.List (foldl')
|
||||||
|
|
||||||
import qualified Data.Map as Map
|
import qualified Data.Map as Map
|
||||||
import qualified Data.Set as Set
|
import qualified Data.Set as Set
|
||||||
|
|
||||||
evalSingle :: Env -> TricuAST -> Env
|
evalSingle :: Map String T -> TricuAST -> Map String T
|
||||||
evalSingle env term
|
evalSingle env term = case term of
|
||||||
| SDef name [] body <- term
|
SFunc name [] body ->
|
||||||
= case Map.lookup name env of
|
let lineNoLambda = eliminateLambda body
|
||||||
Just existingValue
|
result = evalAST env lineNoLambda
|
||||||
| existingValue == evalAST env body -> env
|
in Map.insert name result env
|
||||||
| otherwise -> errorWithoutStackTrace $
|
SLambda _ body ->
|
||||||
"Unable to rebind immutable identifier: " ++ name
|
let result = evalAST env body
|
||||||
Nothing ->
|
in Map.insert "__result" result env
|
||||||
let res = evalAST env body
|
SApp func arg ->
|
||||||
in Map.insert "!result" res (Map.insert name res env)
|
let result = apply (evalAST env $ eliminateLambda func) (evalAST env $ eliminateLambda arg)
|
||||||
| SApp func arg <- term
|
in Map.insert "__result" result env
|
||||||
= let res = apply (evalAST env func) (evalAST env arg)
|
SVar name ->
|
||||||
in Map.insert "!result" res env
|
case Map.lookup name env of
|
||||||
| SVar name <- term
|
Just value -> Map.insert "__result" value env
|
||||||
= case Map.lookup name env of
|
Nothing -> error $ "Variable " ++ name ++ " not defined"
|
||||||
Just v -> Map.insert "!result" v env
|
_ ->
|
||||||
Nothing ->
|
let result = evalAST env term
|
||||||
errorWithoutStackTrace $ "Variable `" ++ name ++ "` not defined\n\
|
in Map.insert "__result" result env
|
||||||
\This error should never occur here. Please report this as an issue."
|
|
||||||
| otherwise
|
|
||||||
= Map.insert "!result" (evalAST env term) env
|
|
||||||
|
|
||||||
evalTricu :: Env -> [TricuAST] -> Env
|
evalTricu :: Map String T -> [TricuAST] -> Map String T
|
||||||
evalTricu env x = go env (reorderDefs env x)
|
evalTricu env [] = env
|
||||||
where
|
evalTricu env [lastLine] =
|
||||||
go env [] = env
|
let lastLineNoLambda = eliminateLambda lastLine
|
||||||
go env [x] =
|
updatedEnv = evalSingle env lastLineNoLambda
|
||||||
let updatedEnv = evalSingle env x
|
in Map.insert "__result" (result updatedEnv) updatedEnv
|
||||||
in Map.insert "!result" (result updatedEnv) updatedEnv
|
evalTricu env (line:rest) =
|
||||||
go env (x:xs) =
|
let lineNoLambda = eliminateLambda line
|
||||||
evalTricu (evalSingle env x) xs
|
updatedEnv = evalSingle env lineNoLambda
|
||||||
|
in evalTricu updatedEnv rest
|
||||||
|
|
||||||
evalAST :: Env -> TricuAST -> T
|
evalAST :: Map String T -> TricuAST -> T
|
||||||
evalAST env term
|
evalAST env term = case term of
|
||||||
| SLambda _ _ <- term = evalAST env (elimLambda term)
|
SVar name -> case Map.lookup name env of
|
||||||
| SVar name <- term = evalVar name
|
Just value -> value
|
||||||
| TLeaf <- term = Leaf
|
Nothing -> error $ "Variable " ++ name ++ " not defined"
|
||||||
| TStem t <- term = Stem (evalAST env t)
|
TLeaf -> Leaf
|
||||||
| TFork t u <- term = Fork (evalAST env t) (evalAST env u)
|
TStem t -> Stem (evalAST env t)
|
||||||
| SApp t u <- term = apply (evalAST env t) (evalAST env u)
|
TFork t1 t2 -> Fork (evalAST env t1) (evalAST env t2)
|
||||||
| SStr s <- term = ofString s
|
SApp t1 t2 -> apply (evalAST env t1) (evalAST env t2)
|
||||||
| SInt n <- term = ofNumber n
|
SStr str -> ofString str
|
||||||
| SList xs <- term = ofList (map (evalAST env) xs)
|
SInt num -> ofNumber num
|
||||||
| SEmpty <- term = Leaf
|
SList elems -> ofList (map (evalAST Map.empty) elems)
|
||||||
| otherwise = errorWithoutStackTrace "Unexpected AST term"
|
SEmpty -> Leaf
|
||||||
where
|
SFunc name args body ->
|
||||||
evalVar name = Map.findWithDefault
|
error $ "Unexpected function definition " ++ name
|
||||||
(errorWithoutStackTrace $ "Variable " ++ name ++ " not defined")
|
++ " in evalAST; define via evalSingle."
|
||||||
name env
|
SLambda {} -> error "Internal error: SLambda found in evalAST after elimination."
|
||||||
|
|
||||||
elimLambda :: TricuAST -> TricuAST
|
eliminateLambda :: TricuAST -> TricuAST
|
||||||
elimLambda = go
|
eliminateLambda (SLambda (v:vs) body)
|
||||||
where
|
| null vs = lambdaToT v (eliminateLambda body)
|
||||||
-- η-reduction
|
| otherwise = eliminateLambda (SLambda [v] (SLambda vs body))
|
||||||
go (SLambda [v] (SApp f (SVar x)))
|
eliminateLambda (SApp f arg) = SApp (eliminateLambda f) (eliminateLambda arg)
|
||||||
| v == x && not (isFree v f) = elimLambda f
|
eliminateLambda (TStem t) = TStem (eliminateLambda t)
|
||||||
-- Triage optimization
|
eliminateLambda (TFork l r) = TFork (eliminateLambda l) (eliminateLambda r)
|
||||||
go (SLambda [a] (SLambda [b] (SLambda [c] body)))
|
eliminateLambda (SList xs) = SList (map eliminateLambda xs)
|
||||||
| body == triageBody = _TRIAGE
|
eliminateLambda other = other
|
||||||
where
|
|
||||||
triageBody =
|
|
||||||
SApp (SApp TLeaf (SApp (SApp TLeaf (SVar a)) (SVar b))) (SVar c)
|
|
||||||
-- Composition optimization
|
|
||||||
go (SLambda [f] (SLambda [g] (SLambda [x] body)))
|
|
||||||
| body == SApp (SVar f) (SApp (SVar g) (SVar x)) = _B
|
|
||||||
-- General elimination
|
|
||||||
go (SLambda [v] (SList xs))
|
|
||||||
= elimLambda (SLambda [v] (foldr wrapTLeaf TLeaf xs))
|
|
||||||
where wrapTLeaf m r = SApp (SApp TLeaf m) r
|
|
||||||
go (SLambda (v:vs) body)
|
|
||||||
| null vs = toSKI v (elimLambda body)
|
|
||||||
| otherwise = elimLambda (SLambda [v] (SLambda vs body))
|
|
||||||
go (SApp f g) = SApp (elimLambda f) (elimLambda g)
|
|
||||||
go x = x
|
|
||||||
|
|
||||||
toSKI x (SVar y)
|
-- https://github.com/barry-jay-personal/typed_tree_calculus/blob/main/typed_program_analysis.pdf
|
||||||
| x == y = _I
|
-- Chapter 4: Lambda-Abstraction
|
||||||
| otherwise = SApp _K (SVar y)
|
lambdaToT :: String -> TricuAST -> TricuAST
|
||||||
toSKI x t@(SApp n u)
|
lambdaToT x (SVar y)
|
||||||
| not (isFree x t) = SApp _K t
|
| x == y = tI
|
||||||
| otherwise = SApp (SApp _S (toSKI x n)) (toSKI x u)
|
lambdaToT x (SVar y)
|
||||||
toSKI x t
|
| x /= y = SApp tK (SVar y)
|
||||||
| not (isFree x t) = SApp _K t
|
lambdaToT x t
|
||||||
| otherwise = errorWithoutStackTrace "Unhandled toSKI conversion"
|
| not (isFree x t) = SApp tK t
|
||||||
|
lambdaToT x (SApp n u)
|
||||||
|
| not (isFree x (SApp n u)) = SApp tK (SApp (eliminateLambda n) (eliminateLambda u))
|
||||||
|
lambdaToT x (SApp n u) = SApp (SApp tS (lambdaToT x (eliminateLambda n))) (lambdaToT x (eliminateLambda u))
|
||||||
|
lambdaToT x body
|
||||||
|
| not (isFree x body) = SApp tK body
|
||||||
|
| otherwise = SApp (SApp tS (lambdaToT x body)) TLeaf
|
||||||
|
|
||||||
_S = parseSingle "t (t (t t t)) t"
|
freeVars :: TricuAST -> Set.Set String
|
||||||
_K = parseSingle "t t"
|
freeVars (SVar v) = Set.singleton v
|
||||||
_I = parseSingle "t (t (t t)) t"
|
freeVars (SInt _) = Set.empty
|
||||||
_B = parseSingle "t (t (t t (t (t (t t t)) t))) (t t)"
|
freeVars (SStr _) = Set.empty
|
||||||
_TRIAGE = parseSingle "t (t (t t (t (t (t t t))))) t"
|
freeVars (SList xs) = foldMap freeVars xs
|
||||||
|
freeVars (SApp f arg) = freeVars f <> freeVars arg
|
||||||
|
freeVars TLeaf = Set.empty
|
||||||
|
freeVars (SFunc _ _ b) = freeVars b
|
||||||
|
freeVars (TStem t) = freeVars t
|
||||||
|
freeVars (TFork l r) = freeVars l <> freeVars r
|
||||||
|
freeVars (SLambda vs b) = foldr Set.delete (freeVars b) vs
|
||||||
|
|
||||||
isFree :: String -> TricuAST -> Bool
|
isFree :: String -> TricuAST -> Bool
|
||||||
isFree x = Set.member x . freeVars
|
isFree x = Set.member x . freeVars
|
||||||
|
|
||||||
freeVars :: TricuAST -> Set.Set String
|
toAST :: T -> TricuAST
|
||||||
freeVars (SVar v ) = Set.singleton v
|
toAST Leaf = TLeaf
|
||||||
freeVars (SInt _ ) = Set.empty
|
toAST (Stem a) = TStem (toAST a)
|
||||||
freeVars (SStr _ ) = Set.empty
|
toAST (Fork a b) = TFork (toAST a) (toAST b)
|
||||||
freeVars (SList s ) = foldMap freeVars s
|
|
||||||
freeVars (SApp f a ) = freeVars f <> freeVars a
|
|
||||||
freeVars TLeaf = Set.empty
|
|
||||||
freeVars (SDef _ _ b) = freeVars b
|
|
||||||
freeVars (TStem t ) = freeVars t
|
|
||||||
freeVars (TFork l r ) = freeVars l <> freeVars r
|
|
||||||
freeVars (SLambda v b ) = foldr Set.delete (freeVars b) v
|
|
||||||
freeVars _ = Set.empty
|
|
||||||
|
|
||||||
reorderDefs :: Env -> [TricuAST] -> [TricuAST]
|
-- We need the SKI operators in an unevaluated TricuAST tree form so that we
|
||||||
reorderDefs env defs
|
-- can keep the evaluation functions straightforward
|
||||||
| not (null missingDeps) =
|
tI :: TricuAST
|
||||||
errorWithoutStackTrace $
|
tI = SApp (SApp TLeaf (SApp TLeaf (SApp TLeaf TLeaf))) TLeaf
|
||||||
"Missing dependencies detected: " ++ show missingDeps
|
|
||||||
| otherwise = orderedDefs ++ others
|
|
||||||
where
|
|
||||||
(defsOnly, others) = partition isDef defs
|
|
||||||
defNames = [ name | SDef name _ _ <- defsOnly ]
|
|
||||||
|
|
||||||
defsWithFreeVars = [(def, freeVars body) | def@(SDef _ _ body) <- defsOnly]
|
tK :: TricuAST
|
||||||
|
tK = SApp TLeaf TLeaf
|
||||||
|
|
||||||
graph = buildDepGraph defsOnly
|
tS :: TricuAST
|
||||||
sortedDefs = sortDeps graph
|
tS = SApp (SApp TLeaf (SApp TLeaf (SApp (SApp TLeaf TLeaf) TLeaf))) TLeaf
|
||||||
defMap = Map.fromList [(name, def) | def@(SDef name _ _) <- defsOnly]
|
|
||||||
orderedDefs = map (\name -> defMap Map.! name) sortedDefs
|
|
||||||
|
|
||||||
freeVarsDefs = foldMap snd defsWithFreeVars
|
result :: Map String T -> T
|
||||||
freeVarsOthers = foldMap freeVars others
|
result r = case Map.lookup "__result" r of
|
||||||
allFreeVars = freeVarsDefs <> freeVarsOthers
|
|
||||||
validNames = Set.fromList defNames `Set.union` Set.fromList (Map.keys env)
|
|
||||||
missingDeps = Set.toList (allFreeVars `Set.difference` validNames)
|
|
||||||
|
|
||||||
isDef (SDef _ _ _) = True
|
|
||||||
isDef _ = False
|
|
||||||
|
|
||||||
buildDepGraph :: [TricuAST] -> Map.Map String (Set.Set String)
|
|
||||||
buildDepGraph topDefs
|
|
||||||
| not (null conflictingDefs) =
|
|
||||||
errorWithoutStackTrace $
|
|
||||||
"Conflicting definitions detected: " ++ show conflictingDefs
|
|
||||||
| otherwise =
|
|
||||||
Map.fromList
|
|
||||||
[ (name, depends topDefs (SDef name [] body))
|
|
||||||
| SDef name _ body <- topDefs]
|
|
||||||
where
|
|
||||||
defsMap = Map.fromListWith (++)
|
|
||||||
[(name, [(name, body)]) | SDef name _ body <- topDefs]
|
|
||||||
|
|
||||||
conflictingDefs =
|
|
||||||
[ name
|
|
||||||
| (name, defs) <- Map.toList defsMap
|
|
||||||
, let bodies = map snd defs
|
|
||||||
, not $ all (== head bodies) (tail bodies)
|
|
||||||
]
|
|
||||||
|
|
||||||
sortDeps :: Map.Map String (Set.Set String) -> [String]
|
|
||||||
sortDeps graph = go [] Set.empty (Map.keys graph)
|
|
||||||
where
|
|
||||||
go sorted sortedSet [] = sorted
|
|
||||||
go sorted sortedSet remaining =
|
|
||||||
let ready = [ name | name <- remaining
|
|
||||||
, let deps = Map.findWithDefault Set.empty name graph
|
|
||||||
, Set.isSubsetOf deps sortedSet ]
|
|
||||||
notReady = remaining \\ ready
|
|
||||||
in if null ready
|
|
||||||
then errorWithoutStackTrace
|
|
||||||
"ERROR: Cyclic dependency detected and prohibited.\n\
|
|
||||||
\RESOLVE: Use nested lambdas."
|
|
||||||
else go (sorted ++ ready)
|
|
||||||
(Set.union sortedSet (Set.fromList ready))
|
|
||||||
notReady
|
|
||||||
|
|
||||||
depends :: [TricuAST] -> TricuAST -> Set.Set String
|
|
||||||
depends topDefs (SDef _ _ body) =
|
|
||||||
Set.intersection
|
|
||||||
(Set.fromList [n | SDef n _ _ <- topDefs])
|
|
||||||
(freeVars body)
|
|
||||||
depends _ _ = Set.empty
|
|
||||||
|
|
||||||
result :: Env -> T
|
|
||||||
result r = case Map.lookup "!result" r of
|
|
||||||
Just a -> a
|
Just a -> a
|
||||||
Nothing -> errorWithoutStackTrace "No !result field found in provided env"
|
Nothing -> error "No __result field found in provided environment"
|
||||||
|
|
||||||
mainResult :: Env -> T
|
|
||||||
mainResult r = case Map.lookup "main" r of
|
|
||||||
Just a -> a
|
|
||||||
Nothing -> errorWithoutStackTrace "No valid definition for `main` found."
|
|
||||||
|
|||||||
158
src/FileEval.hs
158
src/FileEval.hs
@ -1,158 +0,0 @@
|
|||||||
module FileEval where
|
|
||||||
|
|
||||||
import Eval
|
|
||||||
import Lexer
|
|
||||||
import Parser
|
|
||||||
import Research
|
|
||||||
|
|
||||||
import Data.List (partition)
|
|
||||||
import Data.Maybe (mapMaybe)
|
|
||||||
import Control.Monad (foldM)
|
|
||||||
import System.IO
|
|
||||||
import System.FilePath (takeDirectory, normalise, (</>))
|
|
||||||
|
|
||||||
import qualified Data.Map as Map
|
|
||||||
import qualified Data.Set as Set
|
|
||||||
|
|
||||||
extractMain :: Env -> Either String T
|
|
||||||
extractMain env =
|
|
||||||
case Map.lookup "main" env of
|
|
||||||
Just result -> Right result
|
|
||||||
Nothing -> Left "No `main` function detected"
|
|
||||||
|
|
||||||
processImports :: Set.Set FilePath -> FilePath -> FilePath -> [TricuAST]
|
|
||||||
-> Either String ([TricuAST], [(FilePath, String, FilePath)])
|
|
||||||
processImports seen base currentPath asts =
|
|
||||||
let (imports, nonImports) = partition isImp asts
|
|
||||||
importPaths = mapMaybe getImportInfo imports
|
|
||||||
in if currentPath `Set.member` seen
|
|
||||||
then Left $ "Encountered cyclic import: " ++ currentPath
|
|
||||||
else Right (nonImports, importPaths)
|
|
||||||
where
|
|
||||||
isImp (SImport _ _) = True
|
|
||||||
isImp _ = False
|
|
||||||
getImportInfo (SImport p n) = Just (p, n, makeRelativeTo currentPath p)
|
|
||||||
getImportInfo _ = Nothing
|
|
||||||
|
|
||||||
evaluateFileResult :: FilePath -> IO T
|
|
||||||
evaluateFileResult filePath = do
|
|
||||||
contents <- readFile filePath
|
|
||||||
let tokens = lexTricu contents
|
|
||||||
case parseProgram tokens of
|
|
||||||
Left err -> errorWithoutStackTrace (handleParseError err)
|
|
||||||
Right ast -> do
|
|
||||||
processedAst <- preprocessFile filePath
|
|
||||||
let finalEnv = evalTricu Map.empty processedAst
|
|
||||||
case extractMain finalEnv of
|
|
||||||
Right result -> return result
|
|
||||||
Left err -> errorWithoutStackTrace err
|
|
||||||
|
|
||||||
evaluateFile :: FilePath -> IO Env
|
|
||||||
evaluateFile filePath = do
|
|
||||||
contents <- readFile filePath
|
|
||||||
let tokens = lexTricu contents
|
|
||||||
case parseProgram tokens of
|
|
||||||
Left err -> errorWithoutStackTrace (handleParseError err)
|
|
||||||
Right ast -> do
|
|
||||||
ast <- preprocessFile filePath
|
|
||||||
pure $ evalTricu Map.empty ast
|
|
||||||
|
|
||||||
evaluateFileWithContext :: Env -> FilePath -> IO Env
|
|
||||||
evaluateFileWithContext env filePath = do
|
|
||||||
contents <- readFile filePath
|
|
||||||
let tokens = lexTricu contents
|
|
||||||
case parseProgram tokens of
|
|
||||||
Left err -> errorWithoutStackTrace (handleParseError err)
|
|
||||||
Right ast -> do
|
|
||||||
ast <- preprocessFile filePath
|
|
||||||
pure $ evalTricu env ast
|
|
||||||
|
|
||||||
preprocessFile :: FilePath -> IO [TricuAST]
|
|
||||||
preprocessFile p = preprocessFile' Set.empty p p
|
|
||||||
|
|
||||||
preprocessFile' :: Set.Set FilePath -> FilePath -> FilePath -> IO [TricuAST]
|
|
||||||
preprocessFile' seen base currentPath = do
|
|
||||||
contents <- readFile currentPath
|
|
||||||
let tokens = lexTricu contents
|
|
||||||
case parseProgram tokens of
|
|
||||||
Left err -> errorWithoutStackTrace (handleParseError err)
|
|
||||||
Right ast ->
|
|
||||||
case processImports seen base currentPath ast of
|
|
||||||
Left err -> errorWithoutStackTrace err
|
|
||||||
Right (nonImports, importPaths) -> do
|
|
||||||
let seen' = Set.insert currentPath seen
|
|
||||||
imported <- concat <$> mapM (processImportPath seen' base) importPaths
|
|
||||||
pure $ imported ++ nonImports
|
|
||||||
where
|
|
||||||
processImportPath seen base (path, name, importPath) = do
|
|
||||||
ast <- preprocessFile' seen base importPath
|
|
||||||
pure $ map (nsDefinition (if name == "!Local" then "" else name))
|
|
||||||
$ filter (not . isImp) ast
|
|
||||||
isImp (SImport _ _) = True
|
|
||||||
isImp _ = False
|
|
||||||
|
|
||||||
makeRelativeTo :: FilePath -> FilePath -> FilePath
|
|
||||||
makeRelativeTo f i =
|
|
||||||
let d = takeDirectory f
|
|
||||||
in normalise $ d </> i
|
|
||||||
|
|
||||||
nsDefinitions :: String -> [TricuAST] -> [TricuAST]
|
|
||||||
nsDefinitions moduleName = map (nsDefinition moduleName)
|
|
||||||
|
|
||||||
nsDefinition :: String -> TricuAST -> TricuAST
|
|
||||||
nsDefinition "" def = def
|
|
||||||
nsDefinition moduleName (SDef name args body)
|
|
||||||
| isPrefixed name = SDef name args (nsBody moduleName body)
|
|
||||||
| otherwise = SDef (nsVariable moduleName name)
|
|
||||||
args (nsBody moduleName body)
|
|
||||||
nsDefinition moduleName other =
|
|
||||||
nsBody moduleName other
|
|
||||||
|
|
||||||
nsBody :: String -> TricuAST -> TricuAST
|
|
||||||
nsBody moduleName (SVar name)
|
|
||||||
| isPrefixed name = SVar name
|
|
||||||
| otherwise = SVar (nsVariable moduleName name)
|
|
||||||
nsBody moduleName (SApp func arg) =
|
|
||||||
SApp (nsBody moduleName func) (nsBody moduleName arg)
|
|
||||||
nsBody moduleName (SLambda args body) =
|
|
||||||
SLambda args (nsBodyScoped moduleName args body)
|
|
||||||
nsBody moduleName (SList items) =
|
|
||||||
SList (map (nsBody moduleName) items)
|
|
||||||
nsBody moduleName (TFork left right) =
|
|
||||||
TFork (nsBody moduleName left) (nsBody moduleName right)
|
|
||||||
nsBody moduleName (TStem subtree) =
|
|
||||||
TStem (nsBody moduleName subtree)
|
|
||||||
nsBody moduleName (SDef name args body)
|
|
||||||
| isPrefixed name = SDef name args (nsBody moduleName body)
|
|
||||||
| otherwise = SDef (nsVariable moduleName name)
|
|
||||||
args (nsBody moduleName body)
|
|
||||||
nsBody _ other = other
|
|
||||||
|
|
||||||
nsBodyScoped :: String -> [String] -> TricuAST -> TricuAST
|
|
||||||
nsBodyScoped moduleName args body = case body of
|
|
||||||
SVar name ->
|
|
||||||
if name `elem` args
|
|
||||||
then SVar name
|
|
||||||
else nsBody moduleName (SVar name)
|
|
||||||
SApp func arg ->
|
|
||||||
SApp (nsBodyScoped moduleName args func) (nsBodyScoped moduleName args arg)
|
|
||||||
SLambda innerArgs innerBody ->
|
|
||||||
SLambda innerArgs (nsBodyScoped moduleName (args ++ innerArgs) innerBody)
|
|
||||||
SList items ->
|
|
||||||
SList (map (nsBodyScoped moduleName args) items)
|
|
||||||
TFork left right ->
|
|
||||||
TFork (nsBodyScoped moduleName args left)
|
|
||||||
(nsBodyScoped moduleName args right)
|
|
||||||
TStem subtree ->
|
|
||||||
TStem (nsBodyScoped moduleName args subtree)
|
|
||||||
SDef name innerArgs innerBody ->
|
|
||||||
SDef (nsVariable moduleName name) innerArgs
|
|
||||||
(nsBodyScoped moduleName (args ++ innerArgs) innerBody)
|
|
||||||
other -> other
|
|
||||||
|
|
||||||
isPrefixed :: String -> Bool
|
|
||||||
isPrefixed name = '.' `elem` name
|
|
||||||
|
|
||||||
nsVariable :: String -> String -> String
|
|
||||||
nsVariable "" name = name
|
|
||||||
nsVariable moduleName name = moduleName ++ "." ++ name
|
|
||||||
196
src/Lexer.hs
196
src/Lexer.hs
@ -1,119 +1,42 @@
|
|||||||
module Lexer where
|
module Lexer where
|
||||||
|
|
||||||
import Research
|
import Research
|
||||||
|
|
||||||
import Control.Monad (void)
|
|
||||||
import Data.Functor (($>))
|
|
||||||
import Data.Void
|
|
||||||
import Text.Megaparsec
|
import Text.Megaparsec
|
||||||
import Text.Megaparsec.Char hiding (space)
|
import Text.Megaparsec.Char hiding (space)
|
||||||
import Text.Megaparsec.Char.Lexer
|
import Text.Megaparsec.Char.Lexer
|
||||||
|
|
||||||
|
import Control.Monad (void)
|
||||||
|
import Data.Void
|
||||||
|
|
||||||
import qualified Data.Set as Set
|
import qualified Data.Set as Set
|
||||||
|
|
||||||
type Lexer = Parsec Void String
|
type Lexer = Parsec Void String
|
||||||
|
|
||||||
tricuLexer :: Lexer [LToken]
|
data LToken
|
||||||
tricuLexer = do
|
= LKeywordT
|
||||||
sc
|
| LIdentifier String
|
||||||
header <- many $ do
|
| LIntegerLiteral Int
|
||||||
tok <- choice
|
| LStringLiteral String
|
||||||
[ try lImport
|
| LAssign
|
||||||
, lnewline
|
| LColon
|
||||||
]
|
| LBackslash
|
||||||
sc
|
| LOpenParen
|
||||||
pure tok
|
| LCloseParen
|
||||||
tokens <- many $ do
|
| LOpenBracket
|
||||||
tok <- choice tricuLexer'
|
| LCloseBracket
|
||||||
sc
|
| LNewline
|
||||||
pure tok
|
deriving (Show, Eq, Ord)
|
||||||
sc
|
|
||||||
eof
|
|
||||||
pure (header ++ tokens)
|
|
||||||
where
|
|
||||||
tricuLexer' =
|
|
||||||
[ try lnewline
|
|
||||||
, try namespace
|
|
||||||
, try dot
|
|
||||||
, try identifier
|
|
||||||
, try keywordT
|
|
||||||
, try integerLiteral
|
|
||||||
, try stringLiteral
|
|
||||||
, assign
|
|
||||||
, colon
|
|
||||||
, openParen
|
|
||||||
, closeParen
|
|
||||||
, openBracket
|
|
||||||
, closeBracket
|
|
||||||
]
|
|
||||||
|
|
||||||
lexTricu :: String -> [LToken]
|
|
||||||
lexTricu input = case runParser tricuLexer "" input of
|
|
||||||
Left err -> errorWithoutStackTrace $ "Lexical error:\n" ++ errorBundlePretty err
|
|
||||||
Right tokens -> tokens
|
|
||||||
|
|
||||||
|
|
||||||
keywordT :: Lexer LToken
|
keywordT :: Lexer LToken
|
||||||
keywordT = string "t" *> notFollowedBy alphaNumChar $> LKeywordT
|
keywordT = string "t" *> notFollowedBy alphaNumChar *> pure LKeywordT
|
||||||
|
|
||||||
identifier :: Lexer LToken
|
identifier :: Lexer LToken
|
||||||
identifier = do
|
identifier = do
|
||||||
first <- lowerChar <|> char '_'
|
name <- some (letterChar <|> char '_' <|> char '-')
|
||||||
rest <- many $ letterChar
|
if (name == "t" || name == "__result")
|
||||||
<|> digitChar <|> char '_' <|> char '-' <|> char '?'
|
then fail "Keywords (`t`, `__result`) cannot be used as an identifier"
|
||||||
<|> char '$' <|> char '#' <|> char '@' <|> char '%'
|
|
||||||
let name = first : rest
|
|
||||||
if name == "t" || name == "!result"
|
|
||||||
then fail "Keywords (`t`, `!result`) cannot be used as an identifier"
|
|
||||||
else return (LIdentifier name)
|
else return (LIdentifier name)
|
||||||
|
|
||||||
namespace :: Lexer LToken
|
|
||||||
namespace = do
|
|
||||||
name <- try (string "!Local") <|> do
|
|
||||||
first <- upperChar
|
|
||||||
rest <- many (letterChar <|> digitChar)
|
|
||||||
return (first:rest)
|
|
||||||
return (LNamespace name)
|
|
||||||
|
|
||||||
dot :: Lexer LToken
|
|
||||||
dot = char '.' $> LDot
|
|
||||||
|
|
||||||
lImport :: Lexer LToken
|
|
||||||
lImport = do
|
|
||||||
_ <- string "!import"
|
|
||||||
space1
|
|
||||||
LStringLiteral path <- stringLiteral
|
|
||||||
space1
|
|
||||||
LNamespace name <- namespace
|
|
||||||
return (LImport path name)
|
|
||||||
|
|
||||||
assign :: Lexer LToken
|
|
||||||
assign = char '=' $> LAssign
|
|
||||||
|
|
||||||
colon :: Lexer LToken
|
|
||||||
colon = char ':' $> LColon
|
|
||||||
|
|
||||||
openParen :: Lexer LToken
|
|
||||||
openParen = char '(' $> LOpenParen
|
|
||||||
|
|
||||||
closeParen :: Lexer LToken
|
|
||||||
closeParen = char ')' $> LCloseParen
|
|
||||||
|
|
||||||
openBracket :: Lexer LToken
|
|
||||||
openBracket = char '[' $> LOpenBracket
|
|
||||||
|
|
||||||
closeBracket :: Lexer LToken
|
|
||||||
closeBracket = char ']' $> LCloseBracket
|
|
||||||
|
|
||||||
lnewline :: Lexer LToken
|
|
||||||
lnewline = char '\n' $> LNewline
|
|
||||||
|
|
||||||
sc :: Lexer ()
|
|
||||||
sc = space
|
|
||||||
(void $ takeWhile1P (Just "space") (\c -> c == ' ' || c == '\t'))
|
|
||||||
(skipLineComment "--")
|
|
||||||
(skipBlockComment "|-" "-|")
|
|
||||||
|
|
||||||
integerLiteral :: Lexer LToken
|
integerLiteral :: Lexer LToken
|
||||||
integerLiteral = do
|
integerLiteral = do
|
||||||
num <- some digitChar
|
num <- some digitChar
|
||||||
@ -122,22 +45,67 @@ integerLiteral = do
|
|||||||
stringLiteral :: Lexer LToken
|
stringLiteral :: Lexer LToken
|
||||||
stringLiteral = do
|
stringLiteral = do
|
||||||
char '"'
|
char '"'
|
||||||
content <- manyTill Lexer.charLiteral (char '"')
|
content <- many (noneOf ['"'])
|
||||||
|
if null content
|
||||||
|
then fail "Empty string literals are not allowed"
|
||||||
|
else do
|
||||||
|
char '"' --"
|
||||||
return (LStringLiteral content)
|
return (LStringLiteral content)
|
||||||
|
|
||||||
charLiteral :: Lexer Char
|
assign :: Lexer LToken
|
||||||
charLiteral = escapedChar <|> normalChar
|
assign = char '=' *> pure LAssign
|
||||||
|
|
||||||
|
colon :: Lexer LToken
|
||||||
|
colon = char ':' *> pure LColon
|
||||||
|
|
||||||
|
backslash :: Lexer LToken
|
||||||
|
backslash = char '\\' *> pure LBackslash
|
||||||
|
|
||||||
|
openParen :: Lexer LToken
|
||||||
|
openParen = char '(' *> pure LOpenParen
|
||||||
|
|
||||||
|
closeParen :: Lexer LToken
|
||||||
|
closeParen = char ')' *> pure LCloseParen
|
||||||
|
|
||||||
|
openBracket :: Lexer LToken
|
||||||
|
openBracket = char '[' *> pure LOpenBracket
|
||||||
|
|
||||||
|
closeBracket :: Lexer LToken
|
||||||
|
closeBracket = char ']' *> pure LCloseBracket
|
||||||
|
|
||||||
|
lnewline :: Lexer LToken
|
||||||
|
lnewline = char '\n' *> pure LNewline
|
||||||
|
|
||||||
|
sc :: Lexer ()
|
||||||
|
sc = space space1 (skipLineComment "--") (skipBlockComment "|-" "-|")
|
||||||
|
|
||||||
|
tricuLexer :: Lexer [LToken]
|
||||||
|
tricuLexer = do
|
||||||
|
sc
|
||||||
|
tokens <- many $ do
|
||||||
|
tok <- choice tricuLexer'
|
||||||
|
sc
|
||||||
|
pure tok
|
||||||
|
sc
|
||||||
|
eof
|
||||||
|
pure tokens
|
||||||
where
|
where
|
||||||
normalChar = noneOf ['"', '\\']
|
tricuLexer' =
|
||||||
escapedChar = do
|
[ try identifier
|
||||||
void $ char '\\'
|
, try keywordT
|
||||||
c <- oneOf ['n', 't', 'r', 'f', 'b', '\\', '"', '\'']
|
, try integerLiteral
|
||||||
return $ case c of
|
, try stringLiteral
|
||||||
'n' -> '\n'
|
, assign
|
||||||
't' -> '\t'
|
, colon
|
||||||
'r' -> '\r'
|
, backslash
|
||||||
'f' -> '\f'
|
, openParen
|
||||||
'b' -> '\b'
|
, closeParen
|
||||||
'\\' -> '\\'
|
, openBracket
|
||||||
'"' -> '"'
|
, closeBracket
|
||||||
'\'' -> '\''
|
]
|
||||||
|
|
||||||
|
|
||||||
|
lexTricu :: String -> [LToken]
|
||||||
|
lexTricu input = case runParser tricuLexer "" input of
|
||||||
|
Left err -> error $ "Lexical error:\n" ++ errorBundlePretty err
|
||||||
|
Right tokens -> tokens
|
||||||
|
|||||||
46
src/Library.hs
Normal file
46
src/Library.hs
Normal file
@ -0,0 +1,46 @@
|
|||||||
|
module Library where
|
||||||
|
|
||||||
|
import Eval
|
||||||
|
import Parser
|
||||||
|
import Research
|
||||||
|
|
||||||
|
import qualified Data.Map as Map
|
||||||
|
|
||||||
|
library :: Map.Map String T
|
||||||
|
library = evalTricu Map.empty $ parseTricu $ unlines
|
||||||
|
[ "false = t"
|
||||||
|
, "true = t t"
|
||||||
|
, "_ = t"
|
||||||
|
, "k = t t"
|
||||||
|
, "i = t (t k) t"
|
||||||
|
, "s = t (t (k t)) t"
|
||||||
|
, "m = s i i"
|
||||||
|
, "b = s (k s) k"
|
||||||
|
, "c = s (s (k s) (s (k k) s)) (k k)"
|
||||||
|
, "iC = (\\a b c : s a (k c) b)"
|
||||||
|
, "iD = b (b iC) iC"
|
||||||
|
, "iE = b (b iD) iC"
|
||||||
|
, "yi = (\\i : b m (c b (i m)))"
|
||||||
|
, "y = yi iC"
|
||||||
|
, "yC = yi iD"
|
||||||
|
, "yD = yi iE"
|
||||||
|
, "id = (\\a : a)"
|
||||||
|
, "triage = (\\a b c : t (t a b) c)"
|
||||||
|
, "pair = t"
|
||||||
|
, "matchBool = (\\ot of : triage of (\\_ : ot) (\\_ _ : ot))"
|
||||||
|
, "matchList = (\\oe oc : triage oe _ oc)"
|
||||||
|
, "matchPair = (\\op : triage _ _ op)"
|
||||||
|
, "not = matchBool false true"
|
||||||
|
, "and = matchBool id (\\z : false)"
|
||||||
|
, "if = (\\cond then else : t (t else (t t then)) t cond)"
|
||||||
|
, "test = triage \"Leaf\" (\\z : \"Stem\") (\\a b : \"Fork\")"
|
||||||
|
, "emptyList = matchList true (\\y z : false)"
|
||||||
|
, "head = matchList t (\\hd tl : hd)"
|
||||||
|
, "tail = matchList t (\\hd tl : tl)"
|
||||||
|
, "listConcat = y (\\self : matchList (\\k : k) (\\h r k : pair h (self r k)))"
|
||||||
|
, "lAnd = triage (\\x : false) (\\_ x : x) (\\_ _ x : x)"
|
||||||
|
, "lOr = triage (\\x : x) (\\_ _ : true) (\\_ _ x : true)"
|
||||||
|
, "hmap = y (\\self : matchList (\\f : t) (\\hd tl f : pair (f hd) (self tl f)))"
|
||||||
|
, "map = (\\f l : hmap l f)"
|
||||||
|
, "equal = y (\\self : triage (triage true (\\z : false) (\\y z : false)) (\\ax : triage false (self ax) (\\y z : false)) (\\ax ay : triage false (\\z : false) (\\bx by : lAnd (self ax bx) (self ay by))))"
|
||||||
|
]
|
||||||
87
src/Main.hs
87
src/Main.hs
@ -1,89 +1,22 @@
|
|||||||
module Main where
|
module Main where
|
||||||
|
|
||||||
import Eval (evalTricu, mainResult, result)
|
import Eval (evalTricu, result)
|
||||||
import FileEval
|
import Library (library)
|
||||||
import Parser (parseTricu)
|
import Parser (parseTricu)
|
||||||
import REPL
|
import REPL (repl)
|
||||||
import Research
|
import Research (T)
|
||||||
|
|
||||||
import Control.Monad (foldM)
|
|
||||||
import Control.Monad.IO.Class (liftIO)
|
|
||||||
import Data.Version (showVersion)
|
|
||||||
import Text.Megaparsec (runParser)
|
import Text.Megaparsec (runParser)
|
||||||
import Paths_tricu (version)
|
|
||||||
import System.Console.CmdArgs
|
|
||||||
|
|
||||||
import qualified Data.Map as Map
|
import qualified Data.Map as Map
|
||||||
|
|
||||||
data TricuArgs
|
|
||||||
= Repl
|
|
||||||
| Evaluate { file :: [FilePath], form :: EvaluatedForm }
|
|
||||||
| TDecode { file :: [FilePath] }
|
|
||||||
deriving (Show, Data, Typeable)
|
|
||||||
|
|
||||||
replMode :: TricuArgs
|
|
||||||
replMode = Repl
|
|
||||||
&= help "Start interactive REPL"
|
|
||||||
&= auto
|
|
||||||
&= name "repl"
|
|
||||||
|
|
||||||
evaluateMode :: TricuArgs
|
|
||||||
evaluateMode = Evaluate
|
|
||||||
{ file = def &= help "Input file path(s) for evaluation.\n \
|
|
||||||
\ Defaults to stdin."
|
|
||||||
&= name "f" &= typ "FILE"
|
|
||||||
, form = TreeCalculus &= typ "FORM"
|
|
||||||
&= help "Optional output form: (tree|fsl|ast|ternary|ascii|decode).\n \
|
|
||||||
\ Defaults to tricu-compatible `t` tree form."
|
|
||||||
&= name "t"
|
|
||||||
}
|
|
||||||
&= help "Evaluate tricu and return the result of the final expression."
|
|
||||||
&= explicit
|
|
||||||
&= name "eval"
|
|
||||||
|
|
||||||
decodeMode :: TricuArgs
|
|
||||||
decodeMode = TDecode
|
|
||||||
{ file = def
|
|
||||||
&= help "Optional input file path to attempt decoding.\n \
|
|
||||||
\ Defaults to stdin."
|
|
||||||
&= name "f" &= typ "FILE"
|
|
||||||
}
|
|
||||||
&= help "Decode a Tree Calculus value into a string representation."
|
|
||||||
&= explicit
|
|
||||||
&= name "decode"
|
|
||||||
|
|
||||||
main :: IO ()
|
main :: IO ()
|
||||||
main = do
|
main = do
|
||||||
let versionStr = "tricu Evaluator and REPL " ++ showVersion version
|
putStrLn "Welcome to the tricu Interpreter"
|
||||||
args <- cmdArgs $ modes [replMode, evaluateMode, decodeMode]
|
putStrLn "You can exit at any time by typing and entering: "
|
||||||
&= help "tricu: Exploring Tree Calculus"
|
putStrLn ":_exit"
|
||||||
&= program "tricu"
|
repl library
|
||||||
&= summary versionStr
|
|
||||||
&= versionArg [explicit, name "version", summary versionStr]
|
|
||||||
case args of
|
|
||||||
Repl -> do
|
|
||||||
putStrLn "Welcome to the tricu REPL"
|
|
||||||
putStrLn "You can exit with `CTRL+D` or the `!exit` command.`"
|
|
||||||
repl Map.empty
|
|
||||||
Evaluate { file = filePaths, form = form } -> do
|
|
||||||
result <- case filePaths of
|
|
||||||
[] -> do
|
|
||||||
t <- getContents
|
|
||||||
pure $ runTricu t
|
|
||||||
(filePath:restFilePaths) -> do
|
|
||||||
initialEnv <- evaluateFile filePath
|
|
||||||
finalEnv <- foldM evaluateFileWithContext initialEnv restFilePaths
|
|
||||||
pure $ mainResult finalEnv
|
|
||||||
let fRes = formatResult form result
|
|
||||||
putStr fRes
|
|
||||||
TDecode { file = filePaths } -> do
|
|
||||||
value <- case filePaths of
|
|
||||||
[] -> getContents
|
|
||||||
(filePath:_) -> readFile filePath
|
|
||||||
putStrLn $ decodeResult $ result $ evalTricu Map.empty $ parseTricu value
|
|
||||||
|
|
||||||
runTricu :: String -> T
|
runTricu :: String -> T
|
||||||
runTricu input =
|
runTricu s = result (evalTricu Map.empty $ parseTricu s)
|
||||||
let asts = parseTricu input
|
runTricuEnv env s = result (evalTricu env $ parseTricu s)
|
||||||
finalEnv = evalTricu Map.empty asts
|
|
||||||
in result finalEnv
|
|
||||||
|
|||||||
498
src/Parser.hs
498
src/Parser.hs
@ -1,312 +1,262 @@
|
|||||||
module Parser where
|
module Parser where
|
||||||
|
|
||||||
import Lexer
|
import Lexer
|
||||||
import Research
|
import Research hiding (toList)
|
||||||
|
|
||||||
import Control.Monad (void)
|
|
||||||
import Control.Monad.State
|
|
||||||
import Data.List.NonEmpty (toList)
|
import Data.List.NonEmpty (toList)
|
||||||
import Data.Void (Void)
|
import Data.Void (Void)
|
||||||
import Text.Megaparsec
|
import Text.Megaparsec
|
||||||
import Text.Megaparsec.Error (ParseErrorBundle, errorBundlePretty)
|
import Text.Megaparsec.Char
|
||||||
|
import Text.Megaparsec.Error (errorBundlePretty, ParseErrorBundle)
|
||||||
|
|
||||||
import qualified Data.Set as Set
|
import qualified Data.Set as Set
|
||||||
|
|
||||||
data PState = PState
|
type Parser = Parsec Void [LToken]
|
||||||
{ parenDepth :: Int
|
|
||||||
, bracketDepth :: Int
|
|
||||||
} deriving (Show)
|
|
||||||
|
|
||||||
type ParserM = StateT PState (Parsec Void [LToken])
|
data TricuAST
|
||||||
|
= SVar String
|
||||||
satisfyM :: (LToken -> Bool) -> ParserM LToken
|
| SInt Int
|
||||||
satisfyM f = do
|
| SStr String
|
||||||
token <- lift (satisfy f)
|
| SList [TricuAST]
|
||||||
modify' (updateDepth token)
|
| SFunc String [String] TricuAST
|
||||||
return token
|
| SApp TricuAST TricuAST
|
||||||
|
| TLeaf
|
||||||
updateDepth :: LToken -> PState -> PState
|
| TStem TricuAST
|
||||||
updateDepth LOpenParen st = st { parenDepth = parenDepth st + 1 }
|
| TFork TricuAST TricuAST
|
||||||
updateDepth LOpenBracket st = st { bracketDepth = bracketDepth st + 1 }
|
| SLambda [String] TricuAST
|
||||||
updateDepth LCloseParen st = st { parenDepth = parenDepth st - 1 }
|
| SEmpty
|
||||||
updateDepth LCloseBracket st = st { bracketDepth = bracketDepth st - 1 }
|
deriving (Show, Eq, Ord)
|
||||||
updateDepth _ st = st
|
|
||||||
|
|
||||||
topLevelNewline :: ParserM ()
|
|
||||||
topLevelNewline = do
|
|
||||||
st <- get
|
|
||||||
if parenDepth st == 0 && bracketDepth st == 0
|
|
||||||
then void (satisfyM (== LNewline))
|
|
||||||
else fail "Top-level exit in nested context (paren or bracket)"
|
|
||||||
|
|
||||||
parseProgram :: [LToken] -> Either (ParseErrorBundle [LToken] Void) [TricuAST]
|
|
||||||
parseProgram tokens =
|
|
||||||
runParser (evalStateT (parseProgramM <* finalizeDepth <* eof) (PState 0 0)) "" tokens
|
|
||||||
|
|
||||||
parseSingleExpr :: [LToken] -> Either (ParseErrorBundle [LToken] Void) TricuAST
|
|
||||||
parseSingleExpr tokens =
|
|
||||||
runParser (evalStateT (scnParserM *> parseExpressionM <* finalizeDepth <* eof) (PState 0 0)) "" tokens
|
|
||||||
|
|
||||||
finalizeDepth :: ParserM ()
|
|
||||||
finalizeDepth = do
|
|
||||||
st <- get
|
|
||||||
case (parenDepth st, bracketDepth st) of
|
|
||||||
(0, 0) -> pure ()
|
|
||||||
(p, b) -> fail $ "Unmatched tokens: " ++ show (p, b)
|
|
||||||
|
|
||||||
parseTricu :: String -> [TricuAST]
|
parseTricu :: String -> [TricuAST]
|
||||||
parseTricu input =
|
parseTricu input
|
||||||
case lexTricu input of
|
| null tokens = []
|
||||||
|
| otherwise = map parseSingle tokens
|
||||||
|
where
|
||||||
|
tokens = case lexTricu input of
|
||||||
[] -> []
|
[] -> []
|
||||||
toks ->
|
tokens -> lines input
|
||||||
case parseProgram toks of
|
|
||||||
Left err -> errorWithoutStackTrace (handleParseError err)
|
|
||||||
Right asts -> asts
|
|
||||||
|
|
||||||
parseSingle :: String -> TricuAST
|
parseSingle :: String -> TricuAST
|
||||||
parseSingle input =
|
parseSingle input = case lexTricu input of
|
||||||
case lexTricu input of
|
|
||||||
[] -> SEmpty
|
[] -> SEmpty
|
||||||
toks ->
|
tokens -> case runParser parseExpression "" tokens of
|
||||||
case parseSingleExpr toks of
|
Left err -> error $ handleParseError err
|
||||||
Left err -> errorWithoutStackTrace (handleParseError err)
|
|
||||||
Right ast -> ast
|
Right ast -> ast
|
||||||
|
|
||||||
parseProgramM :: ParserM [TricuAST]
|
parseExpression :: Parser TricuAST
|
||||||
parseProgramM = do
|
parseExpression = choice
|
||||||
skipMany topLevelNewline
|
[ try parseFunction
|
||||||
importNodes <- many (do
|
, try parseLambda
|
||||||
node <- parseImportM
|
, try parseLambdaExpression
|
||||||
skipMany topLevelNewline
|
, try parseListLiteral
|
||||||
return node)
|
, try parseApplication
|
||||||
skipMany topLevelNewline
|
, try parseTreeTerm
|
||||||
exprs <- sepEndBy parseOneExpression (some topLevelNewline)
|
, parseLiteral
|
||||||
skipMany topLevelNewline
|
|
||||||
return (importNodes ++ exprs)
|
|
||||||
|
|
||||||
parseImportM :: ParserM TricuAST
|
|
||||||
parseImportM = do
|
|
||||||
LImport filePath moduleName <- satisfyM isImport
|
|
||||||
pure (SImport filePath moduleName)
|
|
||||||
where
|
|
||||||
isImport (LImport _ _) = True
|
|
||||||
isImport _ = False
|
|
||||||
|
|
||||||
parseOneExpression :: ParserM TricuAST
|
|
||||||
parseOneExpression = scnParserM *> parseExpressionM
|
|
||||||
|
|
||||||
scnParserM :: ParserM ()
|
|
||||||
scnParserM = skipMany $ do
|
|
||||||
t <- lookAhead anySingle
|
|
||||||
st <- get
|
|
||||||
if | (parenDepth st > 0 || bracketDepth st > 0) && (t == LNewline) ->
|
|
||||||
void $ satisfyM (== LNewline)
|
|
||||||
| otherwise ->
|
|
||||||
fail "In nested context or no space token" <|> empty
|
|
||||||
|
|
||||||
eofM :: ParserM ()
|
|
||||||
eofM = lift eof
|
|
||||||
|
|
||||||
parseExpressionM :: ParserM TricuAST
|
|
||||||
parseExpressionM = choice
|
|
||||||
[ try parseFunctionM
|
|
||||||
, try parseLambdaM
|
|
||||||
, try parseLambdaExpressionM
|
|
||||||
, try parseListLiteralM
|
|
||||||
, try parseApplicationM
|
|
||||||
, try parseTreeTermM
|
|
||||||
, parseLiteralM
|
|
||||||
]
|
]
|
||||||
|
|
||||||
parseFunctionM :: ParserM TricuAST
|
scnParser :: Parser ()
|
||||||
parseFunctionM = do
|
scnParser = skipMany (satisfy isNewline)
|
||||||
let ident = (\case LIdentifier _ -> True; _ -> False)
|
|
||||||
LIdentifier name <- satisfyM ident
|
|
||||||
args <- many $ satisfyM ident
|
|
||||||
_ <- satisfyM (== LAssign)
|
|
||||||
scnParserM
|
|
||||||
body <- parseExpressionM
|
|
||||||
pure (SDef name (map getIdentifier args) body)
|
|
||||||
|
|
||||||
parseLambdaM :: ParserM TricuAST
|
parseFunction :: Parser TricuAST
|
||||||
parseLambdaM = do
|
parseFunction = do
|
||||||
let ident = (\case LIdentifier _ -> True; _ -> False)
|
LIdentifier name <- satisfy isIdentifier
|
||||||
params <- some (satisfyM ident)
|
args <- many (satisfy isIdentifier)
|
||||||
_ <- satisfyM (== LColon)
|
satisfy (== LAssign)
|
||||||
scnParserM
|
body <- parseExpression
|
||||||
body <- parseLambdaExpressionM
|
return (SFunc name (map getIdentifier args) body)
|
||||||
pure $ foldr (\param acc -> SLambda [getIdentifier param] acc) body params
|
|
||||||
|
|
||||||
parseLambdaExpressionM :: ParserM TricuAST
|
parseAtomicBase :: Parser TricuAST
|
||||||
parseLambdaExpressionM = choice
|
parseAtomicBase = choice
|
||||||
[ try parseLambdaApplicationM
|
[ try parseVarWithoutAssignment
|
||||||
, parseAtomicLambdaM
|
, parseTreeLeaf
|
||||||
|
, parseGrouped
|
||||||
|
]
|
||||||
|
parseVarWithoutAssignment :: Parser TricuAST
|
||||||
|
parseVarWithoutAssignment = do
|
||||||
|
LIdentifier name <- satisfy isIdentifier
|
||||||
|
if (name == "t" || name == "__result")
|
||||||
|
then fail $ "Reserved keyword: " ++ name ++ " cannot be assigned."
|
||||||
|
else notFollowedBy (satisfy (== LAssign)) *> return (SVar name)
|
||||||
|
|
||||||
|
parseLambda :: Parser TricuAST
|
||||||
|
parseLambda = between (satisfy (== LOpenParen)) (satisfy (== LCloseParen)) $ do
|
||||||
|
satisfy (== LBackslash)
|
||||||
|
param <- satisfy isIdentifier
|
||||||
|
rest <- many (satisfy isIdentifier)
|
||||||
|
satisfy (== LColon)
|
||||||
|
body <- parseLambdaExpression
|
||||||
|
let nestedLambda = foldr (\v acc -> SLambda [v] acc) body (map getIdentifier rest)
|
||||||
|
return (SLambda [getIdentifier param] nestedLambda)
|
||||||
|
|
||||||
|
parseLambdaExpression :: Parser TricuAST
|
||||||
|
parseLambdaExpression = choice
|
||||||
|
[ try parseLambdaApplication
|
||||||
|
, parseAtomicLambda
|
||||||
]
|
]
|
||||||
|
|
||||||
parseAtomicLambdaM :: ParserM TricuAST
|
parseAtomicLambda :: Parser TricuAST
|
||||||
parseAtomicLambdaM = choice
|
parseAtomicLambda = choice
|
||||||
[ try parseLambdaM
|
[ parseVar
|
||||||
, parseVarM
|
, parseTreeLeaf
|
||||||
, parseTreeLeafM
|
, parseLiteral
|
||||||
, parseLiteralM
|
, parseListLiteral
|
||||||
, parseListLiteralM
|
, try parseLambda
|
||||||
, between (satisfyM (== LOpenParen)) (satisfyM (== LCloseParen)) parseLambdaExpressionM
|
, between (satisfy (== LOpenParen)) (satisfy (== LCloseParen)) parseLambdaExpression
|
||||||
]
|
]
|
||||||
|
|
||||||
parseApplicationM :: ParserM TricuAST
|
parseApplication :: Parser TricuAST
|
||||||
parseApplicationM = do
|
parseApplication = do
|
||||||
func <- parseAtomicBaseM
|
func <- parseAtomicBase
|
||||||
scnParserM
|
args <- many parseAtomic
|
||||||
args <- many $ do
|
return $ foldl (\acc arg -> SApp acc arg) func args
|
||||||
scnParserM
|
|
||||||
arg <- parseAtomicM
|
|
||||||
return arg
|
|
||||||
return $ foldl SApp func args
|
|
||||||
|
|
||||||
parseLambdaApplicationM :: ParserM TricuAST
|
parseLambdaApplication :: Parser TricuAST
|
||||||
parseLambdaApplicationM = do
|
parseLambdaApplication = do
|
||||||
func <- parseAtomicLambdaM
|
func <- parseAtomicLambda
|
||||||
scnParserM
|
args <- many parseAtomicLambda
|
||||||
args <- many $ do
|
return $ foldl (\acc arg -> SApp acc arg) func args
|
||||||
arg <- parseAtomicLambdaM
|
|
||||||
scnParserM
|
|
||||||
pure arg
|
|
||||||
pure $ foldl SApp func args
|
|
||||||
|
|
||||||
parseAtomicBaseM :: ParserM TricuAST
|
isTreeTerm :: TricuAST -> Bool
|
||||||
parseAtomicBaseM = choice
|
isTreeTerm TLeaf = True
|
||||||
[ parseTreeLeafM
|
isTreeTerm (TStem _) = True
|
||||||
, parseGroupedM
|
isTreeTerm (TFork _ _) = True
|
||||||
]
|
isTreeTerm _ = False
|
||||||
|
|
||||||
parseTreeLeafM :: ParserM TricuAST
|
parseTreeLeaf :: Parser TricuAST
|
||||||
parseTreeLeafM = do
|
parseTreeLeaf = satisfy isKeywordT *> notFollowedBy (satisfy (== LAssign)) *> pure TLeaf
|
||||||
let keyword = (\case LKeywordT -> True; _ -> False)
|
|
||||||
_ <- satisfyM keyword
|
|
||||||
notFollowedBy $ lift $ satisfy (== LAssign)
|
|
||||||
pure TLeaf
|
|
||||||
|
|
||||||
parseTreeTermM :: ParserM TricuAST
|
|
||||||
parseTreeTermM = do
|
|
||||||
base <- parseTreeLeafOrParenthesizedM
|
|
||||||
rest <- many parseTreeLeafOrParenthesizedM
|
|
||||||
pure (foldl combine base rest)
|
|
||||||
where
|
|
||||||
combine acc next
|
|
||||||
| TLeaf <- acc = TStem next
|
|
||||||
| TStem t <- acc = TFork t next
|
|
||||||
| TFork _ _ <- acc = TFork acc next
|
|
||||||
|
|
||||||
parseTreeLeafOrParenthesizedM :: ParserM TricuAST
|
|
||||||
parseTreeLeafOrParenthesizedM = choice
|
|
||||||
[ between (satisfyM (== LOpenParen)) (satisfyM (== LCloseParen)) parseTreeTermM
|
|
||||||
, parseTreeLeafM
|
|
||||||
]
|
|
||||||
|
|
||||||
parseAtomicM :: ParserM TricuAST
|
|
||||||
parseAtomicM = choice
|
|
||||||
[ try parseLambdaM
|
|
||||||
, parseVarM
|
|
||||||
, parseTreeLeafM
|
|
||||||
, parseListLiteralM
|
|
||||||
, parseGroupedM
|
|
||||||
, parseLiteralM
|
|
||||||
]
|
|
||||||
|
|
||||||
parseGroupedM :: ParserM TricuAST
|
|
||||||
parseGroupedM = between (satisfyM (== LOpenParen)) (satisfyM (== LCloseParen)) $
|
|
||||||
scnParserM *> parseExpressionM <* scnParserM
|
|
||||||
|
|
||||||
parseLiteralM :: ParserM TricuAST
|
|
||||||
parseLiteralM = choice
|
|
||||||
[ parseIntLiteralM
|
|
||||||
, parseStrLiteralM
|
|
||||||
]
|
|
||||||
|
|
||||||
parseListLiteralM :: ParserM TricuAST
|
|
||||||
parseListLiteralM = do
|
|
||||||
_ <- satisfyM (== LOpenBracket)
|
|
||||||
elements <- many $ do
|
|
||||||
scnParserM
|
|
||||||
parseListItemM
|
|
||||||
scnParserM
|
|
||||||
_ <- satisfyM (== LCloseBracket)
|
|
||||||
pure (SList elements)
|
|
||||||
|
|
||||||
parseListItemM :: ParserM TricuAST
|
|
||||||
parseListItemM = choice
|
|
||||||
[ parseGroupedItemM
|
|
||||||
, parseListLiteralM
|
|
||||||
, parseSingleItemM
|
|
||||||
]
|
|
||||||
|
|
||||||
parseGroupedItemM :: ParserM TricuAST
|
|
||||||
parseGroupedItemM = do
|
|
||||||
_ <- satisfyM (== LOpenParen)
|
|
||||||
inner <- parseExpressionM
|
|
||||||
_ <- satisfyM (== LCloseParen)
|
|
||||||
pure inner
|
|
||||||
|
|
||||||
parseSingleItemM :: ParserM TricuAST
|
|
||||||
parseSingleItemM = do
|
|
||||||
token <- satisfyM (\case LIdentifier _ -> True; LKeywordT -> True; _ -> False)
|
|
||||||
if | LIdentifier name <- token -> pure (SVar name)
|
|
||||||
| token == LKeywordT -> pure TLeaf
|
|
||||||
| otherwise -> fail "Unexpected token in list item"
|
|
||||||
|
|
||||||
parseVarM :: ParserM TricuAST
|
|
||||||
parseVarM = do
|
|
||||||
token <- satisfyM (\case
|
|
||||||
LNamespace _ -> True
|
|
||||||
LIdentifier _ -> True
|
|
||||||
_ -> False)
|
|
||||||
case token of
|
|
||||||
LNamespace ns -> do
|
|
||||||
_ <- satisfyM (== LDot)
|
|
||||||
LIdentifier name <- satisfyM (\case LIdentifier _ -> True; _ -> False)
|
|
||||||
pure $ SVar (ns ++ "." ++ name)
|
|
||||||
LIdentifier name
|
|
||||||
| name == "t" || name == "!result" ->
|
|
||||||
fail ("Reserved keyword: " ++ name ++ " cannot be assigned.")
|
|
||||||
| otherwise -> pure (SVar name)
|
|
||||||
_ -> fail "Unexpected token while parsing variable"
|
|
||||||
|
|
||||||
parseIntLiteralM :: ParserM TricuAST
|
|
||||||
parseIntLiteralM = do
|
|
||||||
let intL = (\case LIntegerLiteral _ -> True; _ -> False)
|
|
||||||
token <- satisfyM intL
|
|
||||||
if | LIntegerLiteral value <- token ->
|
|
||||||
pure (SInt value)
|
|
||||||
| otherwise ->
|
|
||||||
fail "Unexpected token while parsing integer literal"
|
|
||||||
|
|
||||||
parseStrLiteralM :: ParserM TricuAST
|
|
||||||
parseStrLiteralM = do
|
|
||||||
let strL = (\case LStringLiteral _ -> True; _ -> False)
|
|
||||||
token <- satisfyM strL
|
|
||||||
if | LStringLiteral value <- token ->
|
|
||||||
pure (SStr value)
|
|
||||||
| otherwise ->
|
|
||||||
fail "Unexpected token while parsing string literal"
|
|
||||||
|
|
||||||
getIdentifier :: LToken -> String
|
getIdentifier :: LToken -> String
|
||||||
getIdentifier (LIdentifier name) = name
|
getIdentifier (LIdentifier name) = name
|
||||||
getIdentifier _ = errorWithoutStackTrace "Expected identifier"
|
getIdentifier _ = error "Expected identifier"
|
||||||
|
|
||||||
|
parseTreeTerm :: Parser TricuAST
|
||||||
|
parseTreeTerm = do
|
||||||
|
base <- parseTreeLeafOrParenthesized
|
||||||
|
rest <- many parseTreeLeafOrParenthesized
|
||||||
|
pure $ foldl combine base rest
|
||||||
|
where
|
||||||
|
combine acc next = case acc of
|
||||||
|
TLeaf -> TStem next
|
||||||
|
TStem t -> TFork t next
|
||||||
|
TFork _ _ -> TFork acc next
|
||||||
|
|
||||||
|
parseTreeLeafOrParenthesized :: Parser TricuAST
|
||||||
|
parseTreeLeafOrParenthesized = choice
|
||||||
|
[ between (satisfy (== LOpenParen)) (satisfy (== LCloseParen)) parseTreeTerm
|
||||||
|
, parseTreeLeaf
|
||||||
|
]
|
||||||
|
|
||||||
|
foldTree :: [TricuAST] -> TricuAST
|
||||||
|
foldTree [] = TLeaf
|
||||||
|
foldTree [x] = x
|
||||||
|
foldTree (x:y:rest) = TFork x (foldTree (y:rest))
|
||||||
|
|
||||||
|
parseAtomic :: Parser TricuAST
|
||||||
|
parseAtomic = choice
|
||||||
|
[ parseVar
|
||||||
|
, parseTreeLeaf
|
||||||
|
, parseListLiteral
|
||||||
|
, parseGrouped
|
||||||
|
, parseLiteral
|
||||||
|
]
|
||||||
|
|
||||||
|
parseGrouped :: Parser TricuAST
|
||||||
|
parseGrouped = between (satisfy (== LOpenParen)) (satisfy (== LCloseParen)) parseExpression
|
||||||
|
|
||||||
|
parseLiteral :: Parser TricuAST
|
||||||
|
parseLiteral = choice
|
||||||
|
[ parseIntLiteral
|
||||||
|
, parseStrLiteral
|
||||||
|
]
|
||||||
|
|
||||||
|
parens :: Parser TricuAST -> Parser TricuAST
|
||||||
|
parens p = do
|
||||||
|
satisfy (== LOpenParen)
|
||||||
|
result <- p
|
||||||
|
satisfy (== LCloseParen)
|
||||||
|
return result
|
||||||
|
|
||||||
|
parseListLiteral :: Parser TricuAST
|
||||||
|
parseListLiteral = do
|
||||||
|
satisfy (== LOpenBracket)
|
||||||
|
elements <- many parseListItem
|
||||||
|
satisfy (== LCloseBracket)
|
||||||
|
return (SList elements)
|
||||||
|
|
||||||
|
parseListItem :: Parser TricuAST
|
||||||
|
parseListItem = choice
|
||||||
|
[ parseGroupedItem
|
||||||
|
, parseListLiteral
|
||||||
|
, parseSingleItem
|
||||||
|
]
|
||||||
|
|
||||||
|
parseGroupedItem :: Parser TricuAST
|
||||||
|
parseGroupedItem = do
|
||||||
|
satisfy (== LOpenParen)
|
||||||
|
inner <- parseExpression
|
||||||
|
satisfy (== LCloseParen)
|
||||||
|
return inner
|
||||||
|
|
||||||
|
parseSingleItem :: Parser TricuAST
|
||||||
|
parseSingleItem = do
|
||||||
|
token <- satisfy isListItem
|
||||||
|
case token of
|
||||||
|
LIdentifier name -> return (SVar name)
|
||||||
|
LKeywordT -> return TLeaf
|
||||||
|
_ -> fail "Unexpected token in list item"
|
||||||
|
|
||||||
|
isListItem :: LToken -> Bool
|
||||||
|
isListItem (LIdentifier _) = True
|
||||||
|
isListItem LKeywordT = True
|
||||||
|
isListItem _ = False
|
||||||
|
|
||||||
|
parseVar :: Parser TricuAST
|
||||||
|
parseVar = do
|
||||||
|
LIdentifier name <- satisfy isIdentifier
|
||||||
|
if (name == "t" || name == "__result")
|
||||||
|
then fail $ "Reserved keyword: " ++ name ++ " cannot be assigned."
|
||||||
|
else return (SVar name)
|
||||||
|
|
||||||
|
parseIntLiteral :: Parser TricuAST
|
||||||
|
parseIntLiteral = do
|
||||||
|
LIntegerLiteral value <- satisfy isIntegerLiteral
|
||||||
|
return (SInt value)
|
||||||
|
|
||||||
|
parseStrLiteral :: Parser TricuAST
|
||||||
|
parseStrLiteral = do
|
||||||
|
LStringLiteral value <- satisfy isStringLiteral
|
||||||
|
return (SStr value)
|
||||||
|
|
||||||
|
-- Boolean Helpers
|
||||||
|
isKeywordT (LKeywordT) = True
|
||||||
|
isKeywordT _ = False
|
||||||
|
isIdentifier (LIdentifier _) = True
|
||||||
|
isIdentifier _ = False
|
||||||
|
isIntegerLiteral (LIntegerLiteral _) = True
|
||||||
|
isIntegerLiteral _ = False
|
||||||
|
isStringLiteral (LStringLiteral _) = True
|
||||||
|
isStringLiteral _ = False
|
||||||
|
isLiteral (LIntegerLiteral _) = True
|
||||||
|
isLiteral (LStringLiteral _) = True
|
||||||
|
isLiteral _ = False
|
||||||
|
isNewline (LNewline) = True
|
||||||
|
isNewline _ = False
|
||||||
|
|
||||||
|
-- Error Handling
|
||||||
handleParseError :: ParseErrorBundle [LToken] Void -> String
|
handleParseError :: ParseErrorBundle [LToken] Void -> String
|
||||||
handleParseError bundle =
|
handleParseError bundle =
|
||||||
let errors = bundleErrors bundle
|
let errors = bundleErrors bundle
|
||||||
formattedErrors = map formatError (Data.List.NonEmpty.toList errors)
|
errorList = toList errors
|
||||||
|
formattedErrors = map showError errorList
|
||||||
in unlines ("Parse error(s) encountered:" : formattedErrors)
|
in unlines ("Parse error(s) encountered:" : formattedErrors)
|
||||||
|
|
||||||
formatError :: ParseError [LToken] Void -> String
|
showError :: ParseError [LToken] Void -> String
|
||||||
formatError (TrivialError offset unexpected expected) =
|
showError (TrivialError offset (Just (Tokens tokenStream)) expected) =
|
||||||
let unexpectedMsg = case unexpected of
|
"Parse error at offset " ++ show offset ++ ": unexpected token "
|
||||||
Just x -> "unexpected token " ++ show x
|
++ show tokenStream ++ ", expected one of " ++ show (Set.toList expected)
|
||||||
Nothing -> "unexpected end of input"
|
showError (FancyError offset fancy) =
|
||||||
expectedMsg = if null expected
|
"Parse error at offset " ++ show offset ++ ":\n " ++ unlines (map show (Set.toList fancy))
|
||||||
then ""
|
showError (TrivialError offset Nothing expected) =
|
||||||
else "expected " ++ show (Set.toList expected)
|
"Parse error at offset " ++ show offset ++ ": expected one of "
|
||||||
in "Parse error at offset " ++ show offset ++ ": " ++ unexpectedMsg ++
|
++ show (Set.toList expected)
|
||||||
if null expectedMsg then "" else " " ++ expectedMsg
|
|
||||||
formatError (FancyError offset _) =
|
|
||||||
"Parse error at offset " ++ show offset ++ ": unexpected FancyError"
|
|
||||||
|
|||||||
198
src/REPL.hs
198
src/REPL.hs
@ -1,190 +1,54 @@
|
|||||||
module REPL where
|
module REPL where
|
||||||
|
|
||||||
import Eval
|
import Eval
|
||||||
import FileEval
|
|
||||||
import Lexer
|
import Lexer
|
||||||
import Parser
|
import Parser
|
||||||
import Research
|
import Research
|
||||||
|
|
||||||
import Control.Exception (IOException, SomeException, catch
|
import Control.Exception (SomeException, catch)
|
||||||
, displayException)
|
|
||||||
import Control.Monad (forM_)
|
|
||||||
import Control.Monad.Catch (handle, MonadCatch)
|
|
||||||
import Control.Monad.IO.Class (liftIO)
|
import Control.Monad.IO.Class (liftIO)
|
||||||
import Control.Monad.Trans.Class (lift)
|
import Data.List (intercalate)
|
||||||
import Control.Monad.Trans.Maybe (MaybeT(..), runMaybeT)
|
|
||||||
import Data.Char (isSpace, isUpper)
|
|
||||||
import Data.List (dropWhile, dropWhileEnd, isPrefixOf)
|
|
||||||
import Data.Version (showVersion)
|
|
||||||
import Paths_tricu (version)
|
|
||||||
import System.Console.Haskeline
|
import System.Console.Haskeline
|
||||||
|
|
||||||
import qualified Data.Map as Map
|
import qualified Data.Map as Map
|
||||||
import qualified Data.Text as T
|
|
||||||
import qualified Data.Text.IO as T
|
|
||||||
|
|
||||||
repl :: Env -> IO ()
|
repl :: Map.Map String T -> IO ()
|
||||||
repl env = runInputT settings (withInterrupt (loop env Decode))
|
repl env = runInputT defaultSettings (loop env)
|
||||||
where
|
where
|
||||||
settings :: Settings IO
|
loop :: Map.Map String T -> InputT IO ()
|
||||||
settings = Settings
|
loop env = do
|
||||||
{ complete = completeWord Nothing " \t" completeCommands
|
|
||||||
, historyFile = Just "~/.local/state/tricu/history"
|
|
||||||
, autoAddHistory = True
|
|
||||||
}
|
|
||||||
|
|
||||||
completeCommands :: String -> IO [Completion]
|
|
||||||
completeCommands str = return $ map simpleCompletion $
|
|
||||||
filter (str `isPrefixOf`) commands
|
|
||||||
where
|
|
||||||
commands = [ "!exit"
|
|
||||||
, "!output"
|
|
||||||
, "!definitions"
|
|
||||||
, "!import"
|
|
||||||
, "!clear"
|
|
||||||
, "!save"
|
|
||||||
, "!reset"
|
|
||||||
, "!version"
|
|
||||||
]
|
|
||||||
|
|
||||||
loop :: Env -> EvaluatedForm -> InputT IO ()
|
|
||||||
loop env form = handle (interruptHandler env form) $ do
|
|
||||||
minput <- getInputLine "tricu < "
|
minput <- getInputLine "tricu < "
|
||||||
case minput of
|
case minput of
|
||||||
Nothing -> outputStrLn "Exiting tricu"
|
Nothing -> outputStrLn "Goodbye!"
|
||||||
Just s
|
Just ":_exit" -> outputStrLn "Goodbye!"
|
||||||
| strip s == "" -> loop env form
|
Just "" -> do
|
||||||
| strip s == "!exit" -> outputStrLn "Exiting tricu"
|
outputStrLn ""
|
||||||
| strip s == "!clear" -> do
|
loop env
|
||||||
liftIO $ putStr "\ESC[2J\ESC[H"
|
Just input -> do
|
||||||
loop env form
|
newEnv <- liftIO $ (processInput env input `catch` errorHandler env)
|
||||||
| strip s == "!reset" -> do
|
loop newEnv
|
||||||
outputStrLn "Environment reset to initial state"
|
|
||||||
loop Map.empty form
|
|
||||||
| strip s == "!version" -> do
|
|
||||||
outputStrLn $ "tricu version " ++ showVersion version
|
|
||||||
loop env form
|
|
||||||
| "!save" `isPrefixOf` strip s -> handleSave env form
|
|
||||||
| strip s == "!output" -> handleOutput env form
|
|
||||||
| strip s == "!definitions" -> do
|
|
||||||
let defs = Map.keys $ Map.delete "!result" env
|
|
||||||
if null defs
|
|
||||||
then outputStrLn "No definitions discovered."
|
|
||||||
else do
|
|
||||||
outputStrLn "Available definitions:"
|
|
||||||
mapM_ outputStrLn defs
|
|
||||||
loop env form
|
|
||||||
| "!import" `isPrefixOf` strip s -> handleImport env form
|
|
||||||
| take 2 s == "--" -> loop env form
|
|
||||||
| otherwise -> do
|
|
||||||
newEnv <- liftIO $ processInput env s form `catch` errorHandler env
|
|
||||||
loop newEnv form
|
|
||||||
|
|
||||||
handleOutput :: Env -> EvaluatedForm -> InputT IO ()
|
processInput :: Map.Map String T -> String -> IO (Map.Map String T)
|
||||||
handleOutput env currentForm = do
|
processInput env input = do
|
||||||
let formats = [Decode, TreeCalculus, FSL, AST, Ternary, Ascii]
|
let clearEnv = Map.delete "__result" env
|
||||||
outputStrLn "Available output formats:"
|
newEnv = evalSingle clearEnv (parseSingle input)
|
||||||
mapM_ (\(i, f) -> outputStrLn $ show i ++ ". " ++ show f)
|
case Map.lookup "__result" newEnv of
|
||||||
(zip [1..] formats)
|
|
||||||
|
|
||||||
result <- runMaybeT $ do
|
|
||||||
input <- MaybeT $ getInputLine "Select output format (1-6) < "
|
|
||||||
case reads input of
|
|
||||||
[(n, "")] | n >= 1 && n <= 6 ->
|
|
||||||
return $ formats !! (n-1)
|
|
||||||
_ -> MaybeT $ return Nothing
|
|
||||||
|
|
||||||
case result of
|
|
||||||
Nothing -> do
|
|
||||||
outputStrLn "Invalid selection. Keeping current output format."
|
|
||||||
loop env currentForm
|
|
||||||
Just newForm -> do
|
|
||||||
outputStrLn $ "Output format changed to: " ++ show newForm
|
|
||||||
loop env newForm
|
|
||||||
|
|
||||||
handleImport :: Env -> EvaluatedForm -> InputT IO ()
|
|
||||||
handleImport env form = do
|
|
||||||
res <- runMaybeT $ do
|
|
||||||
let fset = setComplete completeFilename defaultSettings
|
|
||||||
path <- MaybeT $ runInputT fset $
|
|
||||||
getInputLineWithInitial "File path to load < " ("", "")
|
|
||||||
|
|
||||||
text <- MaybeT $ liftIO $ handle (\e -> do
|
|
||||||
putStrLn $ "Error reading file: " ++ displayException (e :: IOException)
|
|
||||||
return Nothing
|
|
||||||
) $ Just <$> readFile (strip path)
|
|
||||||
|
|
||||||
case parseProgram (lexTricu text) of
|
|
||||||
Left err -> do
|
|
||||||
lift $ outputStrLn $ "Parse error: " ++ handleParseError err
|
|
||||||
MaybeT $ return Nothing
|
|
||||||
Right ast -> do
|
|
||||||
ns <- MaybeT $ runInputT defaultSettings $
|
|
||||||
getInputLineWithInitial "Namespace (or !Local for no namespace) < " ("", "")
|
|
||||||
|
|
||||||
let name = strip ns
|
|
||||||
if (name /= "!Local" && (null name || not (isUpper (head name)))) then do
|
|
||||||
lift $ outputStrLn "Namespace must start with an uppercase letter"
|
|
||||||
MaybeT $ return Nothing
|
|
||||||
else do
|
|
||||||
prog <- liftIO $ preprocessFile (strip path)
|
|
||||||
let code = case name of
|
|
||||||
"!Local" -> prog
|
|
||||||
_ -> nsDefinitions name prog
|
|
||||||
env' = evalTricu env code
|
|
||||||
return env'
|
|
||||||
case res of
|
|
||||||
Nothing -> do
|
|
||||||
outputStrLn "Import cancelled"
|
|
||||||
loop env form
|
|
||||||
Just env' ->
|
|
||||||
loop (Map.delete "!result" env') form
|
|
||||||
|
|
||||||
interruptHandler :: Env -> EvaluatedForm -> Interrupt -> InputT IO ()
|
|
||||||
interruptHandler env form _ = do
|
|
||||||
outputStrLn "Interrupted with CTRL+C\n\
|
|
||||||
\You can use the !exit command or CTRL+D to exit"
|
|
||||||
loop env form
|
|
||||||
|
|
||||||
processInput :: Env -> String -> EvaluatedForm -> IO Env
|
|
||||||
processInput env input form = do
|
|
||||||
let asts = parseTricu input
|
|
||||||
newEnv = evalTricu env asts
|
|
||||||
case Map.lookup "!result" newEnv of
|
|
||||||
Just r -> do
|
Just r -> do
|
||||||
putStrLn $ "tricu > " ++ formatResult form r
|
putStrLn $ "tricu > " ++ show r
|
||||||
Nothing -> pure ()
|
putStrLn $ "READ -: \"" ++ decodeResult r ++ "\""
|
||||||
|
Nothing -> return ()
|
||||||
return newEnv
|
return newEnv
|
||||||
|
|
||||||
errorHandler :: Env -> SomeException -> IO (Env)
|
errorHandler :: Map.Map String T -> SomeException -> IO (Map.Map String T)
|
||||||
errorHandler env e = do
|
errorHandler env e = do
|
||||||
putStrLn $ "Error: " ++ show e
|
putStrLn $ "Error: " ++ show e
|
||||||
return env
|
return env
|
||||||
|
|
||||||
strip :: String -> String
|
decodeResult :: T -> String
|
||||||
strip = dropWhileEnd isSpace . dropWhile isSpace
|
decodeResult tc = case toNumber tc of
|
||||||
|
Right num -> show num
|
||||||
handleSave :: Env -> EvaluatedForm -> InputT IO ()
|
Left _ -> case toString tc of
|
||||||
handleSave env form = do
|
Right str -> str
|
||||||
let fset = setComplete completeFilename defaultSettings
|
Left _ -> case toList tc of
|
||||||
path <- runInputT fset $
|
Right list -> "[" ++ intercalate ", " (map decodeResult list) ++ "]"
|
||||||
getInputLineWithInitial "File to save < " ("", "")
|
Left _ -> ""
|
||||||
|
|
||||||
case path of
|
|
||||||
Nothing -> do
|
|
||||||
outputStrLn "Save cancelled"
|
|
||||||
loop env form
|
|
||||||
Just p -> do
|
|
||||||
let definitions = Map.toList $ Map.delete "!result" env
|
|
||||||
filepath = strip p
|
|
||||||
|
|
||||||
outputStrLn "Starting save..."
|
|
||||||
liftIO $ writeFile filepath ""
|
|
||||||
outputStrLn "File created..."
|
|
||||||
forM_ definitions $ \(name, value) -> do
|
|
||||||
let content = name ++ " = " ++ formatResult TreeCalculus value ++ "\n"
|
|
||||||
outputStrLn $ "Writing definition: " ++ name ++ " with length " ++ show (length content)
|
|
||||||
liftIO $ appendFile filepath content
|
|
||||||
outputStrLn $ "Saved " ++ show (length definitions) ++ " definitions to " ++ p
|
|
||||||
|
|
||||||
loop env form
|
|
||||||
|
|||||||
173
src/Research.hs
173
src/Research.hs
@ -1,76 +1,45 @@
|
|||||||
module Research where
|
module Research where
|
||||||
|
|
||||||
|
import Control.Monad.State
|
||||||
import Data.List (intercalate)
|
import Data.List (intercalate)
|
||||||
import Data.Map (Map)
|
import Data.Map (Map)
|
||||||
import Data.Text (Text, replace)
|
|
||||||
import System.Console.CmdArgs (Data, Typeable)
|
|
||||||
|
|
||||||
import qualified Data.Map as Map
|
import qualified Data.Map as Map
|
||||||
import qualified Data.Text as T
|
|
||||||
|
|
||||||
-- Tree Calculus Types
|
|
||||||
data T = Leaf | Stem T | Fork T T
|
data T = Leaf | Stem T | Fork T T
|
||||||
deriving (Show, Eq, Ord)
|
deriving (Show, Eq, Ord)
|
||||||
|
|
||||||
-- Abstract Syntax Tree for tricu
|
|
||||||
data TricuAST
|
|
||||||
= SVar String
|
|
||||||
| SInt Int
|
|
||||||
| SStr String
|
|
||||||
| SList [TricuAST]
|
|
||||||
| SDef String [String] TricuAST
|
|
||||||
| SApp TricuAST TricuAST
|
|
||||||
| TLeaf
|
|
||||||
| TStem TricuAST
|
|
||||||
| TFork TricuAST TricuAST
|
|
||||||
| SLambda [String] TricuAST
|
|
||||||
| SEmpty
|
|
||||||
| SImport String String
|
|
||||||
deriving (Show, Eq, Ord)
|
|
||||||
|
|
||||||
-- Lexer Tokens
|
|
||||||
data LToken
|
|
||||||
= LKeywordT
|
|
||||||
| LIdentifier String
|
|
||||||
| LNamespace String
|
|
||||||
| LIntegerLiteral Int
|
|
||||||
| LStringLiteral String
|
|
||||||
| LAssign
|
|
||||||
| LColon
|
|
||||||
| LDot
|
|
||||||
| LOpenParen
|
|
||||||
| LCloseParen
|
|
||||||
| LOpenBracket
|
|
||||||
| LCloseBracket
|
|
||||||
| LNewline
|
|
||||||
| LImport String String
|
|
||||||
deriving (Show, Eq, Ord)
|
|
||||||
|
|
||||||
-- Output formats
|
|
||||||
data EvaluatedForm = TreeCalculus | FSL | AST | Ternary | Ascii | Decode
|
|
||||||
deriving (Show, Data, Typeable)
|
|
||||||
|
|
||||||
-- Environment containing previously evaluated TC terms
|
|
||||||
type Env = Map.Map String T
|
|
||||||
|
|
||||||
-- Tree Calculus Reduction Rules
|
|
||||||
{-
|
|
||||||
The t operator is left associative.
|
|
||||||
1. t t a b -> a
|
|
||||||
2. t (t a) b c -> a c (b c)
|
|
||||||
3a. t (t a b) c t -> a
|
|
||||||
3b. t (t a b) c (t u) -> b u
|
|
||||||
3c. t (t a b) c (t u v) -> c u v
|
|
||||||
-}
|
|
||||||
apply :: T -> T -> T
|
apply :: T -> T -> T
|
||||||
apply (Fork Leaf a) _ = a
|
|
||||||
apply (Fork (Stem a) b) c = apply (apply a c) (apply b c)
|
|
||||||
apply (Fork (Fork a b) c) Leaf = a
|
|
||||||
apply (Fork (Fork a b) c) (Stem u) = apply b u
|
|
||||||
apply (Fork (Fork a b) c) (Fork u v) = apply (apply c u) v
|
|
||||||
-- Left associative `t`
|
|
||||||
apply Leaf b = Stem b
|
apply Leaf b = Stem b
|
||||||
apply (Stem a) b = Fork a b
|
apply (Stem a) b = Fork a b
|
||||||
|
apply (Fork Leaf a) _ = a
|
||||||
|
apply (Fork (Stem a1) a2) b = apply (apply a1 b) (apply a2 b)
|
||||||
|
apply (Fork (Fork a1 a2) a3) Leaf = a1
|
||||||
|
apply (Fork (Fork a1 a2) a3) (Stem u) = apply a2 u
|
||||||
|
apply (Fork (Fork a1 a2) a3) (Fork u v) = apply (apply a3 u) v
|
||||||
|
|
||||||
|
reduce :: T -> T
|
||||||
|
reduce expr =
|
||||||
|
let next = step expr
|
||||||
|
in if next == expr then expr else reduce next
|
||||||
|
|
||||||
|
step :: T -> T
|
||||||
|
step (Fork left right) = reduce (apply (reduce left) (reduce right))
|
||||||
|
step (Stem inner) = Stem (reduce inner)
|
||||||
|
step t = t
|
||||||
|
|
||||||
|
-- SKI Combinators
|
||||||
|
_S :: T
|
||||||
|
_S = Fork (Stem (Fork Leaf Leaf)) Leaf
|
||||||
|
|
||||||
|
_K :: T
|
||||||
|
_K = Stem Leaf
|
||||||
|
|
||||||
|
-- Identity
|
||||||
|
-- We use the "point-free" style which drops a redundant node
|
||||||
|
-- Full I form (SKK): Fork (Stem (Stem Leaf)) (Stem Leaf)
|
||||||
|
_I :: T
|
||||||
|
_I = Fork (Stem (Stem Leaf)) Leaf
|
||||||
|
|
||||||
-- Booleans
|
-- Booleans
|
||||||
_false :: T
|
_false :: T
|
||||||
@ -84,7 +53,7 @@ _not = Fork (Fork _true (Fork Leaf _false)) Leaf
|
|||||||
|
|
||||||
-- Marshalling
|
-- Marshalling
|
||||||
ofString :: String -> T
|
ofString :: String -> T
|
||||||
ofString str = ofList $ map (ofNumber . fromEnum) str
|
ofString str = ofList (map ofNumber (map fromEnum str))
|
||||||
|
|
||||||
ofNumber :: Int -> T
|
ofNumber :: Int -> T
|
||||||
ofNumber 0 = Leaf
|
ofNumber 0 = Leaf
|
||||||
@ -94,7 +63,8 @@ ofNumber n =
|
|||||||
(ofNumber (n `div` 2))
|
(ofNumber (n `div` 2))
|
||||||
|
|
||||||
ofList :: [T] -> T
|
ofList :: [T] -> T
|
||||||
ofList = foldr Fork Leaf
|
ofList [] = Leaf
|
||||||
|
ofList (x:xs) = Fork x (ofList xs)
|
||||||
|
|
||||||
toNumber :: T -> Either String Int
|
toNumber :: T -> Either String Int
|
||||||
toNumber Leaf = Right 0
|
toNumber Leaf = Right 0
|
||||||
@ -118,32 +88,7 @@ toList (Fork x rest) = case toList rest of
|
|||||||
Left err -> Left err
|
Left err -> Left err
|
||||||
toList _ = Left "Invalid Tree Calculus list"
|
toList _ = Left "Invalid Tree Calculus list"
|
||||||
|
|
||||||
-- Outputs
|
-- Utility
|
||||||
formatResult :: EvaluatedForm -> T -> String
|
|
||||||
formatResult TreeCalculus = toSimpleT . show
|
|
||||||
formatResult FSL = show
|
|
||||||
formatResult AST = show . toAST
|
|
||||||
formatResult Ternary = toTernaryString
|
|
||||||
formatResult Ascii = toAscii
|
|
||||||
formatResult Decode = decodeResult
|
|
||||||
|
|
||||||
toSimpleT :: String -> String
|
|
||||||
toSimpleT s = T.unpack
|
|
||||||
$ replace "Fork" "t"
|
|
||||||
$ replace "Stem" "t"
|
|
||||||
$ replace "Leaf" "t"
|
|
||||||
$ T.pack s
|
|
||||||
|
|
||||||
toTernaryString :: T -> String
|
|
||||||
toTernaryString Leaf = "0"
|
|
||||||
toTernaryString (Stem t) = "1" ++ toTernaryString t
|
|
||||||
toTernaryString (Fork t1 t2) = "2" ++ toTernaryString t1 ++ toTernaryString t2
|
|
||||||
|
|
||||||
toAST :: T -> TricuAST
|
|
||||||
toAST Leaf = TLeaf
|
|
||||||
toAST (Stem a) = TStem (toAST a)
|
|
||||||
toAST (Fork a b) = TFork (toAST a) (toAST b)
|
|
||||||
|
|
||||||
toAscii :: T -> String
|
toAscii :: T -> String
|
||||||
toAscii tree = go tree "" True
|
toAscii tree = go tree "" True
|
||||||
where
|
where
|
||||||
@ -158,19 +103,41 @@ toAscii tree = go tree "" True
|
|||||||
++ go left (prefix ++ (if isLast then " " else "| ")) False
|
++ go left (prefix ++ (if isLast then " " else "| ")) False
|
||||||
++ go right (prefix ++ (if isLast then " " else "| ")) True
|
++ go right (prefix ++ (if isLast then " " else "| ")) True
|
||||||
|
|
||||||
decodeResult :: T -> String
|
rules :: IO ()
|
||||||
decodeResult Leaf = "t"
|
rules = putStr $ header
|
||||||
decodeResult tc =
|
++ (unlines $ tcRules)
|
||||||
case (toString tc, toList tc, toNumber tc) of
|
++ (unlines $ haskellRules)
|
||||||
(Right s, _, _) | all isCommonChar s -> "\"" ++ s ++ "\""
|
++ footer
|
||||||
(_, _, Right n) -> show n
|
|
||||||
(_, Right xs@(_:_), _) -> "[" ++ intercalate ", " (map decodeResult xs) ++ "]"
|
|
||||||
(_, Right [], _) -> "[]"
|
|
||||||
_ -> formatResult TreeCalculus tc
|
|
||||||
where
|
where
|
||||||
isCommonChar c =
|
tcRules :: [String]
|
||||||
let n = fromEnum c
|
tcRules =
|
||||||
in (n >= 32 && n <= 126)
|
[ "| |"
|
||||||
|| n == 9
|
, "| ┌--------- | Tree Calculus | ---------┐ |"
|
||||||
|| n == 10
|
, "| | 1. t t a b -> a | |"
|
||||||
|| n == 13
|
, "| | 2. t (t a) b c -> a c (b c)| |"
|
||||||
|
, "| | 3a. t (t a b) c t -> a | |"
|
||||||
|
, "| | 3b. t (t a b) c (t u) -> b u | |"
|
||||||
|
, "| | 3c. t (t a b) c (t u v) -> c u v | |"
|
||||||
|
, "| └-------------------------------------┘ |"
|
||||||
|
, "| |"
|
||||||
|
]
|
||||||
|
haskellRules :: [String]
|
||||||
|
haskellRules =
|
||||||
|
[ "| ┌------------------------------ | Haskell | --------------------------------┐ |"
|
||||||
|
, "| | | |"
|
||||||
|
, "| | data T = Leaf | Stem T | Fork TT | |"
|
||||||
|
, "| | | |"
|
||||||
|
, "| | apply :: T -> T -> T | |"
|
||||||
|
, "| | apply Leaf b = Stem b | |"
|
||||||
|
, "| | apply (Stem a) b = Fork a b | |"
|
||||||
|
, "| | apply (Fork Leaf a) _ = a | |"
|
||||||
|
, "| | apply (Fork (Stem a1) a2) b = apply (apply a1 b) (apply a2 b) | |"
|
||||||
|
, "| | apply (Fork (Fork a1 a2) a3) Leaf = a1 | |"
|
||||||
|
, "| | apply (Fork (Fork a1 a2) a3) (Stem u) = apply a2 u | |"
|
||||||
|
, "| | apply (Fork (Fork a1 a2) a3) (Fork u v) = apply (apply a3 u) v | |"
|
||||||
|
, "| └---------------------------------------------------------------------------┘ |"
|
||||||
|
]
|
||||||
|
header :: String
|
||||||
|
header = "┌-------------------- | Rules for evaluating Tree Calculus | -------------------┐\n"
|
||||||
|
footer :: String
|
||||||
|
footer = "└-------------------- | Rules for evaluating Tree Calculus | -------------------┘\n"
|
||||||
|
|||||||
461
test/Spec.hs
461
test/Spec.hs
@ -1,15 +1,12 @@
|
|||||||
module Main where
|
module Main where
|
||||||
|
|
||||||
import Eval
|
import Eval
|
||||||
import FileEval
|
|
||||||
import Lexer
|
import Lexer
|
||||||
|
import Library
|
||||||
import Parser
|
import Parser
|
||||||
import REPL
|
import REPL
|
||||||
import Research
|
import Research
|
||||||
|
|
||||||
import Control.Exception (evaluate, try, SomeException)
|
import Control.Exception (evaluate, try, SomeException)
|
||||||
import Control.Monad.IO.Class (liftIO)
|
|
||||||
import Data.List (isInfixOf)
|
|
||||||
import Test.Tasty
|
import Test.Tasty
|
||||||
import Test.Tasty.HUnit
|
import Test.Tasty.HUnit
|
||||||
import Test.Tasty.QuickCheck
|
import Test.Tasty.QuickCheck
|
||||||
@ -26,233 +23,189 @@ runTricu s = show $ result (evalTricu Map.empty $ parseTricu s)
|
|||||||
|
|
||||||
tests :: TestTree
|
tests :: TestTree
|
||||||
tests = testGroup "Tricu Tests"
|
tests = testGroup "Tricu Tests"
|
||||||
[ lexer
|
[ lexerTests
|
||||||
, parser
|
, parserTests
|
||||||
, simpleEvaluation
|
, evaluationTests
|
||||||
, lambdas
|
, lambdaEvalTests
|
||||||
, providedLibraries
|
, libraryTests
|
||||||
, fileEval
|
, propertyTests
|
||||||
, modules
|
|
||||||
, demos
|
|
||||||
, decoding
|
|
||||||
]
|
]
|
||||||
|
|
||||||
lexer :: TestTree
|
lexerTests :: TestTree
|
||||||
lexer = testGroup "Lexer Tests"
|
lexerTests = testGroup "Lexer Tests"
|
||||||
[ testCase "Lex simple identifiers" $ do
|
[ testCase "Lex simple identifiers" $ do
|
||||||
let input = "x a b = a"
|
let input = "x a b = a"
|
||||||
expect = Right [LIdentifier "x", LIdentifier "a", LIdentifier "b", LAssign, LIdentifier "a"]
|
expect = Right [LIdentifier "x", LIdentifier "a", LIdentifier "b", LAssign, LIdentifier "a"]
|
||||||
runParser tricuLexer "" input @?= expect
|
runParser tricuLexer "" input @?= expect
|
||||||
|
|
||||||
, testCase "Lex Tree Calculus terms" $ do
|
, testCase "Lex Tree Calculus terms" $ do
|
||||||
let input = "t t t"
|
let input = "t t t"
|
||||||
expect = Right [LKeywordT, LKeywordT, LKeywordT]
|
expect = Right [LKeywordT, LKeywordT, LKeywordT]
|
||||||
runParser tricuLexer "" input @?= expect
|
runParser tricuLexer "" input @?= expect
|
||||||
|
|
||||||
, testCase "Lex escaped characters in strings" $ do
|
, testCase "Lex escaped characters in strings" $ do
|
||||||
let input = "\"hello\\nworld\""
|
let input = "\"hello\\nworld\""
|
||||||
expect = Right [LStringLiteral "hello\nworld"]
|
expect = Right [LStringLiteral "hello\\nworld"]
|
||||||
runParser tricuLexer "" input @?= expect
|
runParser tricuLexer "" input @?= expect
|
||||||
|
|
||||||
, testCase "Lex multiple escaped characters in strings" $ do
|
|
||||||
let input = "\"tab:\\t newline:\\n quote:\\\" backslash:\\\\\""
|
|
||||||
expect = Right [LStringLiteral "tab:\t newline:\n quote:\" backslash:\\"]
|
|
||||||
runParser tricuLexer "" input @?= expect
|
|
||||||
|
|
||||||
, testCase "Lex escaped characters in string literals" $ do
|
|
||||||
let input = "x = \"line1\\nline2\\tindented\""
|
|
||||||
expect = Right [LIdentifier "x", LAssign, LStringLiteral "line1\nline2\tindented"]
|
|
||||||
runParser tricuLexer "" input @?= expect
|
|
||||||
|
|
||||||
, testCase "Lex empty string with escape sequence" $ do
|
|
||||||
let input = "\"\\\"\""
|
|
||||||
expect = Right [LStringLiteral "\""]
|
|
||||||
runParser tricuLexer "" input @?= expect
|
|
||||||
|
|
||||||
, testCase "Lex mixed literals" $ do
|
, testCase "Lex mixed literals" $ do
|
||||||
let input = "t \"string\" 42"
|
let input = "t \"string\" 42"
|
||||||
expect = Right [LKeywordT, LStringLiteral "string", LIntegerLiteral 42]
|
expect = Right [LKeywordT, LStringLiteral "string", LIntegerLiteral 42]
|
||||||
runParser tricuLexer "" input @?= expect
|
runParser tricuLexer "" input @?= expect
|
||||||
|
|
||||||
, testCase "Lex invalid token" $ do
|
, testCase "Lex invalid token" $ do
|
||||||
let input = "&invalid"
|
let input = "$invalid"
|
||||||
case runParser tricuLexer "" input of
|
case runParser tricuLexer "" input of
|
||||||
Left _ -> return ()
|
Left _ -> return ()
|
||||||
Right _ -> assertFailure "Expected lexer to fail on invalid token"
|
Right _ -> assertFailure "Expected lexer to fail on invalid token"
|
||||||
|
|
||||||
, testCase "Drop trailing whitespace in definitions" $ do
|
, testCase "Drop trailing whitespace in definitions" $ do
|
||||||
let input = "x = 5 "
|
let input = "x = 5 "
|
||||||
expect = [LIdentifier "x",LAssign,LIntegerLiteral 5]
|
expect = [LIdentifier "x",LAssign,LIntegerLiteral 5]
|
||||||
case (runParser tricuLexer "" input) of
|
case (runParser tricuLexer "" input) of
|
||||||
Left _ -> assertFailure "Failed to lex input"
|
Left _ -> assertFailure "Failed to lex input"
|
||||||
Right i -> i @?= expect
|
Right i -> i @?= expect
|
||||||
|
|
||||||
, testCase "Error when using invalid characters in identifiers" $ do
|
, testCase "Error when using invalid characters in identifiers" $ do
|
||||||
case (runParser tricuLexer "" "!result = 5") of
|
case (runParser tricuLexer "" "__result = 5") of
|
||||||
Left _ -> return ()
|
Left _ -> return ()
|
||||||
Right _ -> assertFailure "Expected failure when trying to assign the value of !result"
|
Right _ -> assertFailure "Expected failure when trying to assign the value of __result"
|
||||||
]
|
]
|
||||||
|
|
||||||
parser :: TestTree
|
parserTests :: TestTree
|
||||||
parser = testGroup "Parser Tests"
|
parserTests = testGroup "Parser Tests"
|
||||||
[ testCase "Error when assigning a value to T" $ do
|
[-- testCase "Error when parsing incomplete definitions" $ do
|
||||||
let tokens = lexTricu "t = x"
|
-- let input = lexTricu "x = "
|
||||||
case parseSingleExpr tokens of
|
-- case (runParser parseExpression "" input) of
|
||||||
|
-- Left _ -> return ()
|
||||||
|
-- Right _ -> assertFailure "Expected failure on invalid input"
|
||||||
|
testCase "Error when assigning a value to T" $ do
|
||||||
|
let input = lexTricu "t = x"
|
||||||
|
case (runParser parseExpression "" input) of
|
||||||
Left _ -> return ()
|
Left _ -> return ()
|
||||||
Right _ -> assertFailure "Expected failure when trying to assign the value of T"
|
Right _ -> assertFailure "Expected failure when trying to assign the value of T"
|
||||||
|
|
||||||
, testCase "Parse function definitions" $ do
|
, testCase "Parse function definitions" $ do
|
||||||
let input = "x = (a b c : a)"
|
let input = "x = (\\a b c : a)"
|
||||||
expect = SDef "x" [] (SLambda ["a"] (SLambda ["b"] (SLambda ["c"] (SVar "a"))))
|
expect = SFunc "x" [] (SLambda ["a"] (SLambda ["b"] (SLambda ["c"] (SVar "a"))))
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse nested Tree Calculus terms" $ do
|
, testCase "Parse nested Tree Calculus terms" $ do
|
||||||
let input = "t (t t) t"
|
let input = "t (t t) t"
|
||||||
expect = SApp (SApp TLeaf (SApp TLeaf TLeaf)) TLeaf
|
expect = SApp (SApp TLeaf (SApp TLeaf TLeaf)) TLeaf
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse sequential Tree Calculus terms" $ do
|
, testCase "Parse sequential Tree Calculus terms" $ do
|
||||||
let input = "t t t"
|
let input = "t t t"
|
||||||
expect = SApp (SApp TLeaf TLeaf) TLeaf
|
expect = SApp (SApp TLeaf TLeaf) TLeaf
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse mixed list literals" $ do
|
, testCase "Parse mixed list literals" $ do
|
||||||
let input = "[t (\"hello\") t]"
|
let input = "[t (\"hello\") t]"
|
||||||
expect = SList [TLeaf, SStr "hello", TLeaf]
|
expect = SList [TLeaf, SStr "hello", TLeaf]
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse function with applications" $ do
|
, testCase "Parse function with applications" $ do
|
||||||
let input = "f = (x : t x)"
|
let input = "f = (\\x : t x)"
|
||||||
expect = SDef "f" [] (SLambda ["x"] (SApp TLeaf (SVar "x")))
|
expect = SFunc "f" [] (SLambda ["x"] (SApp TLeaf (SVar "x")))
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse nested lists" $ do
|
, testCase "Parse nested lists" $ do
|
||||||
let input = "[t [(t t)]]"
|
let input = "[t [(t t)]]"
|
||||||
expect = SList [TLeaf,SList [SApp TLeaf TLeaf]]
|
expect = SList [TLeaf,SList [SApp TLeaf TLeaf]]
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse complex parentheses" $ do
|
, testCase "Parse complex parentheses" $ do
|
||||||
let input = "t (t t (t t))"
|
let input = "t (t t (t t))"
|
||||||
expect = SApp TLeaf (SApp (SApp TLeaf TLeaf) (SApp TLeaf TLeaf))
|
expect = SApp TLeaf (SApp (SApp TLeaf TLeaf) (SApp TLeaf TLeaf))
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse empty list" $ do
|
, testCase "Parse empty list" $ do
|
||||||
let input = "[]"
|
let input = "[]"
|
||||||
expect = SList []
|
expect = SList []
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse multiple nested lists" $ do
|
, testCase "Parse multiple nested lists" $ do
|
||||||
let input = "[[t t] [t (t t)]]"
|
let input = "[[t t] [t (t t)]]"
|
||||||
expect = SList [SList [TLeaf,TLeaf],SList [TLeaf,SApp TLeaf TLeaf]]
|
expect = SList [SList [TLeaf,TLeaf],SList [TLeaf,SApp TLeaf TLeaf]]
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse whitespace variance" $ do
|
, testCase "Parse whitespace variance" $ do
|
||||||
let input1 = "[t t]"
|
let input1 = "[t t]"
|
||||||
let input2 = "[ t t ]"
|
let input2 = "[ t t ]"
|
||||||
expect = SList [TLeaf, TLeaf]
|
expect = SList [TLeaf, TLeaf]
|
||||||
parseSingle input1 @?= expect
|
parseSingle input1 @?= expect
|
||||||
parseSingle input2 @?= expect
|
parseSingle input2 @?= expect
|
||||||
|
|
||||||
, testCase "Parse string in list" $ do
|
, testCase "Parse string in list" $ do
|
||||||
let input = "[(\"hello\")]"
|
let input = "[(\"hello\")]"
|
||||||
expect = SList [SStr "hello"]
|
expect = SList [SStr "hello"]
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse parentheses inside list" $ do
|
, testCase "Parse parentheses inside list" $ do
|
||||||
let input = "[t (t t)]"
|
let input = "[t (t t)]"
|
||||||
expect = SList [TLeaf,SApp TLeaf TLeaf]
|
expect = SList [TLeaf,SApp TLeaf TLeaf]
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse nested parentheses in function body" $ do
|
, testCase "Parse nested parentheses in function body" $ do
|
||||||
let input = "f = (x : t (t (t t)))"
|
let input = "f = (\\x : t (t (t t)))"
|
||||||
expect = SDef "f" [] (SLambda ["x"] (SApp TLeaf (SApp TLeaf (SApp TLeaf TLeaf))))
|
expect = SFunc "f" [] (SLambda ["x"] (SApp TLeaf (SApp TLeaf (SApp TLeaf TLeaf))))
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse lambda abstractions" $ do
|
, testCase "Parse lambda abstractions" $ do
|
||||||
let input = "(a : a)"
|
let input = "(\\a : a)"
|
||||||
expect = (SLambda ["a"] (SVar "a"))
|
expect = (SLambda ["a"] (SVar "a"))
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Parse multiple arguments to lambda abstractions" $ do
|
, testCase "Parse multiple arguments to lambda abstractions" $ do
|
||||||
let input = "x = (a b : a)"
|
let input = "x = (\\a b : a)"
|
||||||
expect = SDef "x" [] (SLambda ["a"] (SLambda ["b"] (SVar "a")))
|
expect = SFunc "x" [] (SLambda ["a"] (SLambda ["b"] (SVar "a")))
|
||||||
parseSingle input @?= expect
|
parseSingle input @?= expect
|
||||||
|
|
||||||
, testCase "Grouping T terms with parentheses in function application" $ do
|
, testCase "Grouping T terms with parentheses in function application" $ do
|
||||||
let input = "x = (a : a)\nx (t)"
|
let input = "x = (\\a : a)\nx (t)"
|
||||||
expect = [SDef "x" [] (SLambda ["a"] (SVar "a")),SApp (SVar "x") TLeaf]
|
expect = [SFunc "x" [] (SLambda ["a"] (SVar "a")),SApp (SVar "x") TLeaf]
|
||||||
parseTricu input @?= expect
|
parseTricu input @?= expect
|
||||||
|
|
||||||
, testCase "Comments 1" $ do
|
, testCase "Comments 1" $ do
|
||||||
let input = "(t) (t) -- (t)"
|
let input = "(t) (t) -- (t)"
|
||||||
expect = [SApp TLeaf TLeaf]
|
expect = [SApp TLeaf TLeaf]
|
||||||
parseTricu input @?= expect
|
parseTricu input @?= expect
|
||||||
|
|
||||||
, testCase "Comments 2" $ do
|
, testCase "Comments 2" $ do
|
||||||
let input = "(t) -- (t) -- (t)"
|
let input = "(t) -- (t) -- (t)"
|
||||||
expect = [TLeaf]
|
expect = [TLeaf]
|
||||||
parseTricu input @?= expect
|
parseTricu input @?= expect
|
||||||
|
-- , testCase "Comments with no terms" $ do
|
||||||
|
-- let input = unlines ["-- (t)", "(t t)"]
|
||||||
|
-- expect = []
|
||||||
|
-- parseTricu input @?= expect
|
||||||
]
|
]
|
||||||
|
|
||||||
simpleEvaluation :: TestTree
|
evaluationTests :: TestTree
|
||||||
simpleEvaluation = testGroup "Evaluation Tests"
|
evaluationTests = testGroup "Evaluation Tests"
|
||||||
[ testCase "Evaluate single Leaf" $ do
|
[ testCase "Evaluate single Leaf" $ do
|
||||||
let input = "t"
|
let input = "t"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= Leaf
|
(result $ evalSingle Map.empty ast) @?= Leaf
|
||||||
|
|
||||||
, testCase "Evaluate single Stem" $ do
|
, testCase "Evaluate single Stem" $ do
|
||||||
let input = "t t"
|
let input = "t t"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= Stem Leaf
|
(result $ evalSingle Map.empty ast) @?= Stem Leaf
|
||||||
|
|
||||||
, testCase "Evaluate single Fork" $ do
|
, testCase "Evaluate single Fork" $ do
|
||||||
let input = "t t t"
|
let input = "t t t"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= Fork Leaf Leaf
|
(result $ evalSingle Map.empty ast) @?= Fork Leaf Leaf
|
||||||
|
|
||||||
, testCase "Evaluate nested Fork and Stem" $ do
|
, testCase "Evaluate nested Fork and Stem" $ do
|
||||||
let input = "t (t t) t"
|
let input = "t (t t) t"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= Fork (Stem Leaf) Leaf
|
(result $ evalSingle Map.empty ast) @?= Fork (Stem Leaf) Leaf
|
||||||
|
|
||||||
, testCase "Evaluate `not` function" $ do
|
, testCase "Evaluate `not` function" $ do
|
||||||
let input = "t (t (t t) (t t t)) t"
|
let input = "t (t (t t) (t t t)) t"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?=
|
(result $ evalSingle Map.empty ast) @?=
|
||||||
Fork (Fork (Stem Leaf) (Fork Leaf Leaf)) Leaf
|
Fork (Fork (Stem Leaf) (Fork Leaf Leaf)) Leaf
|
||||||
|
|
||||||
, testCase "Environment updates with definitions" $ do
|
, testCase "Environment updates with definitions" $ do
|
||||||
let input = "x = t\ny = x"
|
let input = "x = t\ny = x"
|
||||||
env = evalTricu Map.empty (parseTricu input)
|
env = evalTricu Map.empty (parseTricu input)
|
||||||
Map.lookup "x" env @?= Just Leaf
|
Map.lookup "x" env @?= Just Leaf
|
||||||
Map.lookup "y" env @?= Just Leaf
|
Map.lookup "y" env @?= Just Leaf
|
||||||
|
|
||||||
, testCase "Variable substitution" $ do
|
, testCase "Variable substitution" $ do
|
||||||
let input = "x = t t\ny = t x\ny"
|
let input = "x = t t\ny = t x\ny"
|
||||||
env = evalTricu Map.empty (parseTricu input)
|
env = evalTricu Map.empty (parseTricu input)
|
||||||
(result env) @?= Stem (Stem Leaf)
|
(result env) @?= Stem (Stem Leaf)
|
||||||
|
|
||||||
, testCase "Multiline input evaluation" $ do
|
, testCase "Multiline input evaluation" $ do
|
||||||
let input = "x = t\ny = t t\nx"
|
let input = "x = t\ny = t t\nx"
|
||||||
env = evalTricu Map.empty (parseTricu input)
|
env = evalTricu Map.empty (parseTricu input)
|
||||||
(result env) @?= Leaf
|
(result env) @?= Leaf
|
||||||
|
|
||||||
, testCase "Evaluate string literal" $ do
|
, testCase "Evaluate string literal" $ do
|
||||||
let input = "\"hello\""
|
let input = "\"hello\""
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= ofString "hello"
|
(result $ evalSingle Map.empty ast) @?= ofString "hello"
|
||||||
|
|
||||||
, testCase "Evaluate list literal" $ do
|
, testCase "Evaluate list literal" $ do
|
||||||
let input = "[t (t t)]"
|
let input = "[t (t t)]"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= ofList [Leaf, Stem Leaf]
|
(result $ evalSingle Map.empty ast) @?= ofList [Leaf, Stem Leaf]
|
||||||
|
|
||||||
, testCase "Evaluate empty list" $ do
|
, testCase "Evaluate empty list" $ do
|
||||||
let input = "[]"
|
let input = "[]"
|
||||||
let ast = parseSingle input
|
let ast = parseSingle input
|
||||||
(result $ evalSingle Map.empty ast) @?= ofList []
|
(result $ evalSingle Map.empty ast) @?= ofList []
|
||||||
|
|
||||||
, testCase "Evaluate variable dependency chain" $ do
|
, testCase "Evaluate variable dependency chain" $ do
|
||||||
let input = "x = t (t t)\n \
|
let input = "x = t (t t)\n \
|
||||||
\ y = x\n \
|
\ y = x\n \
|
||||||
@ -261,312 +214,176 @@ simpleEvaluation = testGroup "Evaluation Tests"
|
|||||||
\ variablewithamuchlongername"
|
\ variablewithamuchlongername"
|
||||||
env = evalTricu Map.empty (parseTricu input)
|
env = evalTricu Map.empty (parseTricu input)
|
||||||
(result env) @?= (Stem (Stem Leaf))
|
(result env) @?= (Stem (Stem Leaf))
|
||||||
|
, testCase "Evaluate variable shadowing" $ do
|
||||||
|
|
||||||
, testCase "Immutable definitions" $ do
|
|
||||||
let input = "x = t t\nx = t\nx"
|
let input = "x = t t\nx = t\nx"
|
||||||
env = evalTricu Map.empty (parseTricu input)
|
env = evalTricu Map.empty (parseTricu input)
|
||||||
result <- try (evaluate (runTricu input)) :: IO (Either SomeException String)
|
(result env) @?= Leaf
|
||||||
case result of
|
|
||||||
Left _ -> return ()
|
|
||||||
Right _ -> assertFailure "Expected evaluation error"
|
|
||||||
|
|
||||||
|
|
||||||
, testCase "Apply identity to Boolean Not" $ do
|
, testCase "Apply identity to Boolean Not" $ do
|
||||||
let not = "(t (t (t t) (t t t)) t)"
|
let not = "(t (t (t t) (t t t)) t)"
|
||||||
let input = "x = (a : a)\nx " ++ not
|
let input = "x = (\\a : a)\nx " ++ not
|
||||||
env = evalTricu Map.empty (parseTricu input)
|
env = evalTricu Map.empty (parseTricu input)
|
||||||
result env @?= Fork (Fork (Stem Leaf) (Fork Leaf Leaf)) Leaf
|
result env @?= Fork (Fork (Stem Leaf) (Fork Leaf Leaf)) Leaf
|
||||||
]
|
]
|
||||||
|
|
||||||
lambdas :: TestTree
|
lambdaEvalTests :: TestTree
|
||||||
lambdas = testGroup "Lambda Evaluation Tests"
|
lambdaEvalTests = testGroup "Lambda Evaluation Tests"
|
||||||
[ testCase "Lambda Identity Function" $ do
|
[ testCase "Lambda Identity Function" $ do
|
||||||
let input = "id = (x : x)\nid t"
|
let input = "id = (\\x : x)\nid t"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
|
||||||
, testCase "Lambda Constant Function (K combinator)" $ do
|
, testCase "Lambda Constant Function (K combinator)" $ do
|
||||||
let input = "k = (x y : x)\nk t (t t)"
|
let input = "k = (\\x y : x)\nk t (t t)"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
|
||||||
, testCase "Lambda Application with Variable" $ do
|
, testCase "Lambda Application with Variable" $ do
|
||||||
let input = "id = (x : x)\nval = t t\nid val"
|
let input = "id = (\\x : x)\nval = t t\nid val"
|
||||||
runTricu input @?= "Stem Leaf"
|
runTricu input @?= "Stem Leaf"
|
||||||
|
|
||||||
, testCase "Lambda Application with Multiple Arguments" $ do
|
, testCase "Lambda Application with Multiple Arguments" $ do
|
||||||
let input = "apply = (f x y : f x y)\nk = (a b : a)\napply k t (t t)"
|
let input = "apply = (\\f x y : f x y)\nk = (\\a b : a)\napply k t (t t)"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
|
||||||
, testCase "Nested Lambda Application" $ do
|
, testCase "Nested Lambda Application" $ do
|
||||||
let input = "apply = (f x y : f x y)\nid = (x : x)\napply (f x : f x) id t"
|
let input = "apply = (\\f x y : f x y)\nid = (\\x : x)\napply (\\f x : f x) id t"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
|
||||||
, testCase "Lambda with a complex body" $ do
|
, testCase "Lambda with a complex body" $ do
|
||||||
let input = "f = (x : t (t x))\nf t"
|
let input = "f = (\\x : t (t x))\nf t"
|
||||||
runTricu input @?= "Stem (Stem Leaf)"
|
runTricu input @?= "Stem (Stem Leaf)"
|
||||||
|
|
||||||
, testCase "Lambda returning a function" $ do
|
, testCase "Lambda returning a function" $ do
|
||||||
let input = "f = (x : (y : x))\ng = f t\ng (t t)"
|
let input = "f = (\\x : (\\y : x))\ng = f t\ng (t t)"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
|
||||||
, testCase "Lambda with Shadowing" $ do
|
, testCase "Lambda with Shadowing" $ do
|
||||||
let input = "f = (x : (x : x))\nf t (t t)"
|
let input = "f = (\\x : (\\x : x))\nf t (t t)"
|
||||||
runTricu input @?= "Stem Leaf"
|
runTricu input @?= "Stem Leaf"
|
||||||
|
|
||||||
, testCase "Lambda returning another lambda" $ do
|
, testCase "Lambda returning another lambda" $ do
|
||||||
let input = "k = (x : (y : x))\nk_app = k t\nk_app (t t)"
|
let input = "k = (\\x : (\\y : x))\nk_app = k t\nk_app (t t)"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
|
||||||
, testCase "Lambda with free variables" $ do
|
, testCase "Lambda with free variables" $ do
|
||||||
let input = "y = t t\nf = (x : y)\nf t"
|
let input = "y = t t\nf = (\\x : y)\nf t"
|
||||||
runTricu input @?= "Stem Leaf"
|
runTricu input @?= "Stem Leaf"
|
||||||
|
|
||||||
, testCase "SKI Composition" $ do
|
, testCase "SKI Composition" $ do
|
||||||
let input = "s = (x y z : x z (y z))\nk = (x y : x)\ni = (x : x)\ncomp = s k i\ncomp t (t t)"
|
let input = "s = (\\x y z : x z (y z))\nk = (\\x y : x)\ni = (\\x : x)\ncomp = s k i\ncomp t (t t)"
|
||||||
runTricu input @?= "Stem (Stem Leaf)"
|
runTricu input @?= "Stem (Stem Leaf)"
|
||||||
|
|
||||||
, testCase "Lambda with multiple parameters and application" $ do
|
, testCase "Lambda with multiple parameters and application" $ do
|
||||||
let input = "f = (a b c : t a b c)\nf t (t t) (t t t)"
|
let input = "f = (\\a b c : t a b c)\nf t (t t) (t t t)"
|
||||||
runTricu input @?= "Stem Leaf"
|
runTricu input @?= "Stem Leaf"
|
||||||
|
|
||||||
, testCase "Lambda with nested application in the body" $ do
|
, testCase "Lambda with nested application in the body" $ do
|
||||||
let input = "f = (x : t (t (t x)))\nf t"
|
let input = "f = (\\x : t (t (t x)))\nf t"
|
||||||
runTricu input @?= "Stem (Stem (Stem Leaf))"
|
runTricu input @?= "Stem (Stem (Stem Leaf))"
|
||||||
|
|
||||||
, testCase "Lambda returning a function and applying it" $ do
|
, testCase "Lambda returning a function and applying it" $ do
|
||||||
let input = "f = (x : (y : t x y))\ng = f t\ng (t t)"
|
let input = "f = (\\x : (\\y : t x y))\ng = f t\ng (t t)"
|
||||||
runTricu input @?= "Fork Leaf (Stem Leaf)"
|
runTricu input @?= "Fork Leaf (Stem Leaf)"
|
||||||
|
|
||||||
, testCase "Lambda applying a variable" $ do
|
, testCase "Lambda applying a variable" $ do
|
||||||
let input = "id = (x : x)\na = t t\nid a"
|
let input = "id = (\\x : x)\na = t t\nid a"
|
||||||
runTricu input @?= "Stem Leaf"
|
runTricu input @?= "Stem Leaf"
|
||||||
|
|
||||||
, testCase "Nested lambda abstractions in the same expression" $ do
|
, testCase "Nested lambda abstractions in the same expression" $ do
|
||||||
let input = "f = (x : (y : x y))\ng = (z : z)\nf g t"
|
let input = "f = (\\x : (\\y : x y))\ng = (\\z : z)\nf g t"
|
||||||
runTricu input @?= "Leaf"
|
runTricu input @?= "Leaf"
|
||||||
|
, testCase "Lambda with a string literal" $ do
|
||||||
, testCase "Lambda applied to string literal" $ do
|
let input = "f = (\\x : x)\nf \"hello\""
|
||||||
let input = "f = (x : x)\nf \"hello\""
|
|
||||||
runTricu input @?= "Fork (Fork Leaf (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) Leaf))))"
|
runTricu input @?= "Fork (Fork Leaf (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork Leaf (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) (Fork (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork (Stem Leaf) Leaf))))))) Leaf))))"
|
||||||
|
, testCase "Lambda with an integer literal" $ do
|
||||||
|
let input = "f = (\\x : x)\nf 42"
|
||||||
, testCase "Lambda applied to integer literal" $ do
|
|
||||||
let input = "f = (x : x)\nf 42"
|
|
||||||
runTricu input @?= "Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) Leaf)))))"
|
runTricu input @?= "Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) (Fork Leaf (Fork (Stem Leaf) Leaf)))))"
|
||||||
|
, testCase "Lambda with a list literal" $ do
|
||||||
, testCase "Lambda applied to list literal" $ do
|
let input = "f = (\\x : x)\nf [t (t t)]"
|
||||||
let input = "f = (x : x)\nf [t (t t)]"
|
|
||||||
runTricu input @?= "Fork Leaf (Fork (Stem Leaf) Leaf)"
|
runTricu input @?= "Fork Leaf (Fork (Stem Leaf) Leaf)"
|
||||||
|
|
||||||
, testCase "Lambda containing list literal" $ do
|
|
||||||
let input = "(a : [(a)]) 1"
|
|
||||||
runTricu input @?= "Fork (Fork (Stem Leaf) Leaf) Leaf"
|
|
||||||
]
|
]
|
||||||
|
|
||||||
providedLibraries :: TestTree
|
libraryTests :: TestTree
|
||||||
providedLibraries = testGroup "Library Tests"
|
libraryTests = testGroup "Library Tests"
|
||||||
[ testCase "Triage test Leaf" $ do
|
[ testCase "K combinator 1" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
let input = "k (t) (t t)"
|
||||||
let input = "test t"
|
|
||||||
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
|
||||||
env @?= "\"Leaf\""
|
|
||||||
|
|
||||||
, testCase "Triage test (Stem Leaf)" $ do
|
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "test (t t)"
|
|
||||||
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
|
||||||
env @?= "\"Stem\""
|
|
||||||
|
|
||||||
, testCase "Triage test (Fork Leaf Leaf)" $ do
|
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "test (t t t)"
|
|
||||||
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
|
||||||
env @?= "\"Fork\""
|
|
||||||
|
|
||||||
, testCase "Boolean NOT: true" $ do
|
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "not? true"
|
|
||||||
env = result $ evalTricu library (parseTricu input)
|
|
||||||
env @?= Leaf
|
|
||||||
|
|
||||||
, testCase "Boolean NOT: false" $ do
|
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "not? false"
|
|
||||||
env = result $ evalTricu library (parseTricu input)
|
|
||||||
env @?= Stem Leaf
|
|
||||||
|
|
||||||
|
|
||||||
, testCase "Boolean AND TF" $ do
|
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "and? (t t) (t)"
|
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Leaf
|
result env @?= Leaf
|
||||||
|
, testCase "K combinator 2" $ do
|
||||||
, testCase "Boolean AND FT" $ do
|
let input = "k (t t) (t)"
|
||||||
library <- evaluateFile "./lib/list.tri"
|
env = evalTricu library (parseTricu input)
|
||||||
let input = "and? (t) (t t)"
|
result env @?= Stem Leaf
|
||||||
env = evalTricu library (parseTricu input)
|
, testCase "K combinator 3" $ do
|
||||||
result env @?= Leaf
|
let input = "k (t t t) (t)"
|
||||||
|
env = evalTricu library (parseTricu input)
|
||||||
, testCase "Boolean AND FF" $ do
|
result env @?= Fork Leaf Leaf
|
||||||
library <- evaluateFile "./lib/list.tri"
|
, testCase "S combinator" $ do
|
||||||
let input = "and? (t) (t)"
|
let input = "s (t) (t) (t)"
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Leaf
|
result env @?= Fork Leaf (Stem Leaf)
|
||||||
|
, testCase "SKK == I (fully expanded)" $ do
|
||||||
, testCase "Boolean AND TT" $ do
|
let input = "s k k"
|
||||||
library <- evaluateFile "./lib/list.tri"
|
env = evalTricu library (parseTricu input)
|
||||||
let input = "and? (t t) (t t)"
|
result env @?= Fork (Stem (Stem Leaf)) (Stem Leaf)
|
||||||
|
, testCase "I combinator" $ do
|
||||||
|
let input = "i not"
|
||||||
|
env = evalTricu library (parseTricu input)
|
||||||
|
result env @?= Fork (Fork (Stem Leaf) (Fork Leaf Leaf)) (Fork Leaf (Fork Leaf Leaf))
|
||||||
|
, testCase "Triage test Leaf" $ do
|
||||||
|
let input = "test t"
|
||||||
|
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
||||||
|
env @?= "Leaf"
|
||||||
|
, testCase "Triage test (Stem Leaf)" $ do
|
||||||
|
let input = "test (t t)"
|
||||||
|
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
||||||
|
env @?= "Stem"
|
||||||
|
, testCase "Triage test (Fork Leaf Leaf)" $ do
|
||||||
|
let input = "test (t t t)"
|
||||||
|
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
||||||
|
env @?= "Fork"
|
||||||
|
, testCase "Boolean NOT: true" $ do
|
||||||
|
let input = "not true"
|
||||||
|
env = result $ evalTricu library (parseTricu input)
|
||||||
|
env @?= Leaf
|
||||||
|
, testCase "Boolean NOT: false" $ do
|
||||||
|
let input = "not false"
|
||||||
|
env = result $ evalTricu library (parseTricu input)
|
||||||
|
env @?= Stem Leaf
|
||||||
|
, testCase "Boolean AND TF" $ do
|
||||||
|
let input = "and (t t) (t)"
|
||||||
|
env = evalTricu library (parseTricu input)
|
||||||
|
result env @?= Leaf
|
||||||
|
, testCase "Boolean AND FT" $ do
|
||||||
|
let input = "and (t) (t t)"
|
||||||
|
env = evalTricu library (parseTricu input)
|
||||||
|
result env @?= Leaf
|
||||||
|
, testCase "Boolean AND FF" $ do
|
||||||
|
let input = "and (t) (t)"
|
||||||
|
env = evalTricu library (parseTricu input)
|
||||||
|
result env @?= Leaf
|
||||||
|
, testCase "Boolean AND TT" $ do
|
||||||
|
let input = "and (t t) (t t)"
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Stem Leaf
|
result env @?= Stem Leaf
|
||||||
|
|
||||||
, testCase "List head" $ do
|
, testCase "List head" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "head [(t) (t t) (t t t)]"
|
let input = "head [(t) (t t) (t t t)]"
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Leaf
|
result env @?= Leaf
|
||||||
|
|
||||||
, testCase "List tail" $ do
|
, testCase "List tail" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
|
||||||
let input = "head (tail (tail [(t) (t t) (t t t)]))"
|
let input = "head (tail (tail [(t) (t t) (t t t)]))"
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Fork Leaf Leaf
|
result env @?= Fork Leaf Leaf
|
||||||
|
|
||||||
, testCase "List map" $ do
|
, testCase "List map" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
let input = "head (tail (map (\\a : (t t t)) [(t) (t) (t)]))"
|
||||||
let input = "head (tail (map (a : (t t t)) [(t) (t) (t)]))"
|
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Fork Leaf Leaf
|
result env @?= Fork Leaf Leaf
|
||||||
|
|
||||||
, testCase "Empty list check" $ do
|
, testCase "Empty list check" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
let input = "emptyList []"
|
||||||
let input = "emptyList? []"
|
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Stem Leaf
|
result env @?= Stem Leaf
|
||||||
|
|
||||||
, testCase "Non-empty list check" $ do
|
, testCase "Non-empty list check" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
let input = "not (emptyList [(1) (2) (3)])"
|
||||||
let input = "not? (emptyList? [(1) (2) (3)])"
|
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Stem Leaf
|
result env @?= Stem Leaf
|
||||||
|
|
||||||
, testCase "Concatenate strings" $ do
|
, testCase "Concatenate strings" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
let input = "listConcat \"Hello, \" \"world!\""
|
||||||
let input = "append \"Hello, \" \"world!\""
|
|
||||||
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
env = decodeResult $ result $ evalTricu library (parseTricu input)
|
||||||
env @?= "\"Hello, world!\""
|
env @?= "Hello, world!"
|
||||||
|
|
||||||
, testCase "Verifying Equality" $ do
|
, testCase "Verifying Equality" $ do
|
||||||
library <- evaluateFile "./lib/list.tri"
|
let input = "equal (t t t) (t t t)"
|
||||||
let input = "equal? (t t t) (t t t)"
|
|
||||||
env = evalTricu library (parseTricu input)
|
env = evalTricu library (parseTricu input)
|
||||||
result env @?= Stem Leaf
|
result env @?= Stem Leaf
|
||||||
]
|
]
|
||||||
|
|
||||||
fileEval :: TestTree
|
propertyTests :: TestTree
|
||||||
fileEval = testGroup "File evaluation tests"
|
propertyTests = testGroup "Property Tests"
|
||||||
[ testCase "Forks" $ do
|
[ testProperty "Lexing and parsing round-trip" $ \input ->
|
||||||
res <- liftIO $ evaluateFileResult "./test/fork.tri"
|
case runParser tricuLexer "" input of
|
||||||
res @?= Fork Leaf Leaf
|
Left _ -> property True
|
||||||
|
Right tokens -> case runParser parseExpression "" tokens of
|
||||||
, testCase "File ends with comment" $ do
|
Left _ -> property True
|
||||||
res <- liftIO $ evaluateFileResult "./test/comments-1.tri"
|
Right ast -> parseSingle input === ast
|
||||||
res @?= Fork (Stem Leaf) Leaf
|
|
||||||
|
|
||||||
, testCase "Mapping and Equality" $ do
|
|
||||||
library <- liftIO $ evaluateFile "./lib/list.tri"
|
|
||||||
fEnv <- liftIO $ evaluateFileWithContext library "./test/map.tri"
|
|
||||||
(mainResult fEnv) @?= Stem Leaf
|
|
||||||
|
|
||||||
, testCase "Eval and decoding string" $ do
|
|
||||||
library <- liftIO $ evaluateFile "./lib/list.tri"
|
|
||||||
res <- liftIO $ evaluateFileWithContext library "./test/string.tri"
|
|
||||||
decodeResult (result res) @?= "\"String test!\""
|
|
||||||
]
|
|
||||||
|
|
||||||
modules :: TestTree
|
|
||||||
modules = testGroup "Test modules"
|
|
||||||
[ testCase "Detect cyclic dependencies" $ do
|
|
||||||
result <- try (liftIO $ evaluateFileResult "./test/cycle-1.tri") :: IO (Either SomeException T)
|
|
||||||
case result of
|
|
||||||
Left e -> do
|
|
||||||
let errorMsg = show e
|
|
||||||
if "Encountered cyclic import" `isInfixOf` errorMsg
|
|
||||||
then return ()
|
|
||||||
else assertFailure $ "Unexpected error: " ++ errorMsg
|
|
||||||
Right _ -> assertFailure "Expected cyclic dependencies"
|
|
||||||
, testCase "Module imports and namespacing" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./test/namespace-A.tri"
|
|
||||||
res @?= Leaf
|
|
||||||
, testCase "Multiple imports" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./test/vars-A.tri"
|
|
||||||
res @?= Leaf
|
|
||||||
, testCase "Error on unresolved variable" $ do
|
|
||||||
result <- try (liftIO $ evaluateFileResult "./test/unresolved-A.tri") :: IO (Either SomeException T)
|
|
||||||
case result of
|
|
||||||
Left e -> do
|
|
||||||
let errorMsg = show e
|
|
||||||
if "undefinedVar" `isInfixOf` errorMsg
|
|
||||||
then return ()
|
|
||||||
else assertFailure $ "Unexpected error: " ++ errorMsg
|
|
||||||
Right _ -> assertFailure "Expected unresolved variable error"
|
|
||||||
, testCase "Multi-level imports" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./test/multi-level-A.tri"
|
|
||||||
res @?= Leaf
|
|
||||||
, testCase "Lambda expression namespaces" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./test/lambda-A.tri"
|
|
||||||
res @?= Leaf
|
|
||||||
, testCase "Local namespace import chain" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./test/local-ns/1.tri"
|
|
||||||
res @?= Fork (Stem Leaf) (Fork (Stem Leaf) Leaf)
|
|
||||||
]
|
|
||||||
|
|
||||||
|
|
||||||
-- All of our demo tests are also module tests
|
|
||||||
demos :: TestTree
|
|
||||||
demos = testGroup "Test provided demo functionality"
|
|
||||||
[ testCase "Structural equality demo" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./demos/equality.tri"
|
|
||||||
decodeResult res @?= "t t"
|
|
||||||
, testCase "Convert values back to source code demo" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./demos/toSource.tri"
|
|
||||||
decodeResult res @?= "\"(t (t (t t) (t t t)) (t t (t t t)))\""
|
|
||||||
, testCase "Determining the size of functions" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./demos/size.tri"
|
|
||||||
decodeResult res @?= "454"
|
|
||||||
, testCase "Level Order Traversal demo" $ do
|
|
||||||
res <- liftIO $ evaluateFileResult "./demos/levelOrderTraversal.tri"
|
|
||||||
decodeResult res @?= "\"\n1 \n2 3 \n4 5 6 7 \n8 11 10 9 12 \""
|
|
||||||
]
|
|
||||||
|
|
||||||
decoding :: TestTree
|
|
||||||
decoding = testGroup "Decoding Tests"
|
|
||||||
[ testCase "Decode Leaf" $ do
|
|
||||||
decodeResult Leaf @?= "t"
|
|
||||||
|
|
||||||
, testCase "Decode list of non-ASCII numbers" $ do
|
|
||||||
let input = ofList [ofNumber 1, ofNumber 14, ofNumber 6]
|
|
||||||
decodeResult input @?= "[1, 14, 6]"
|
|
||||||
|
|
||||||
, testCase "Decode list of ASCII numbers as a string" $ do
|
|
||||||
let input = ofList [ofNumber 97, ofNumber 98, ofNumber 99]
|
|
||||||
decodeResult input @?= "\"abc\""
|
|
||||||
|
|
||||||
, testCase "Decode small number" $ do
|
|
||||||
decodeResult (ofNumber 42) @?= "42"
|
|
||||||
|
|
||||||
, testCase "Decode large number" $ do
|
|
||||||
decodeResult (ofNumber 9999) @?= "9999"
|
|
||||||
|
|
||||||
, testCase "Decode string in list" $ do
|
|
||||||
let input = ofList [ofString "hello", ofString "world"]
|
|
||||||
decodeResult input @?= "[\"hello\", \"world\"]"
|
|
||||||
|
|
||||||
, testCase "Decode mixed list with strings" $ do
|
|
||||||
let input = ofList [ofString "hello", ofNumber 42, ofString "world"]
|
|
||||||
decodeResult input @?= "[\"hello\", 42, \"world\"]"
|
|
||||||
|
|
||||||
, testCase "Decode nested lists with strings" $ do
|
|
||||||
let input = ofList [ofList [ofString "nested"], ofString "string"]
|
|
||||||
decodeResult input @?= "[[\"nested\"], \"string\"]"
|
|
||||||
]
|
]
|
||||||
|
|||||||
@ -1,9 +0,0 @@
|
|||||||
-- This is a tricu comment!
|
|
||||||
-- t (t t) (t (t t t))
|
|
||||||
-- t (t t t) (t t)
|
|
||||||
-- x = (a : a)
|
|
||||||
main = t (t t) t -- Fork (Stem Leaf) Leaf
|
|
||||||
-- t t
|
|
||||||
-- x
|
|
||||||
-- x = (a : a)
|
|
||||||
-- t
|
|
||||||
@ -1,4 +0,0 @@
|
|||||||
|
|
||||||
!import "cycle-2.tri" Cycle2
|
|
||||||
|
|
||||||
cycle1 = t Cycle2.cycle2
|
|
||||||
@ -1,4 +0,0 @@
|
|||||||
|
|
||||||
!import "cycle-1.tri" Cycle1
|
|
||||||
|
|
||||||
cycle2 = t Cycle1.cycle1
|
|
||||||
@ -1 +0,0 @@
|
|||||||
main = t t t
|
|
||||||
@ -1 +0,0 @@
|
|||||||
main = (x : x) t
|
|
||||||
@ -1,4 +0,0 @@
|
|||||||
|
|
||||||
!import "2.tri" Two
|
|
||||||
|
|
||||||
main = Two.x
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
|
|
||||||
!import "3.tri" !Local
|
|
||||||
@ -1 +0,0 @@
|
|||||||
x = 3
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
x = map (i : append "Successfully concatenated " i) [("two strings!")]
|
|
||||||
main = equal? x [("Successfully concatenated two strings!")]
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
!import "multi-level-B.tri" B
|
|
||||||
main = B.main
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
!import "multi-level-C.tri" C
|
|
||||||
main = C.val
|
|
||||||
@ -1 +0,0 @@
|
|||||||
val = t
|
|
||||||
@ -1,7 +0,0 @@
|
|||||||
|
|
||||||
!import "lib/base.tri"
|
|
||||||
|
|
||||||
!import "test/named-imports/2.tri"
|
|
||||||
!import "test/named-imports/3.tri" ThreeRenamed
|
|
||||||
|
|
||||||
main = equal? (equal? Two.x 2) (equal? ThreeRenamed.x 3)
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
|
|
||||||
x = 2
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
|
|
||||||
x = 3
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
!import "namespace-B.tri" B
|
|
||||||
main = B.x
|
|
||||||
@ -1 +0,0 @@
|
|||||||
x = t
|
|
||||||
@ -1,21 +0,0 @@
|
|||||||
compose = f g x : f (g x)
|
|
||||||
|
|
||||||
succ = y (self :
|
|
||||||
triage
|
|
||||||
1
|
|
||||||
t
|
|
||||||
(triage
|
|
||||||
(t (t t))
|
|
||||||
(_ tail : t t (self tail))
|
|
||||||
t))
|
|
||||||
|
|
||||||
size = (x :
|
|
||||||
(y (self x :
|
|
||||||
compose succ
|
|
||||||
(triage
|
|
||||||
(x : x)
|
|
||||||
self
|
|
||||||
(x y : compose (self x) (self y))
|
|
||||||
x)) x 0))
|
|
||||||
|
|
||||||
size size
|
|
||||||
@ -1 +0,0 @@
|
|||||||
head (map (i : append "String " i) [("test!")])
|
|
||||||
@ -1 +0,0 @@
|
|||||||
main = undefinedVar
|
|
||||||
@ -1,6 +0,0 @@
|
|||||||
|
|
||||||
!import "vars-B.tri" B
|
|
||||||
|
|
||||||
!import "vars-C.tri" C
|
|
||||||
|
|
||||||
main = B.y (C.z)
|
|
||||||
@ -1 +0,0 @@
|
|||||||
y = x : x
|
|
||||||
@ -1 +0,0 @@
|
|||||||
z = t
|
|
||||||
31
tricu.cabal
31
tricu.cabal
@ -1,7 +1,7 @@
|
|||||||
cabal-version: 1.12
|
cabal-version: 1.12
|
||||||
|
|
||||||
name: tricu
|
name: tricu
|
||||||
version: 0.18.1
|
version: 0.4.0
|
||||||
description: A micro-language for exploring Tree Calculus
|
description: A micro-language for exploring Tree Calculus
|
||||||
author: James Eversole
|
author: James Eversole
|
||||||
maintainer: james@eversole.co
|
maintainer: james@eversole.co
|
||||||
@ -17,26 +17,25 @@ executable tricu
|
|||||||
hs-source-dirs:
|
hs-source-dirs:
|
||||||
src
|
src
|
||||||
default-extensions:
|
default-extensions:
|
||||||
DeriveDataTypeable
|
ConstraintKinds
|
||||||
LambdaCase
|
DataKinds
|
||||||
MultiWayIf
|
DeriveGeneric
|
||||||
|
FlexibleContexts
|
||||||
|
FlexibleInstances
|
||||||
|
GeneralizedNewtypeDeriving
|
||||||
OverloadedStrings
|
OverloadedStrings
|
||||||
|
ScopedTypeVariables
|
||||||
ghc-options: -threaded -rtsopts -with-rtsopts=-N -optl-pthread -fPIC
|
ghc-options: -threaded -rtsopts -with-rtsopts=-N -optl-pthread -fPIC
|
||||||
build-depends:
|
build-depends:
|
||||||
base >=4.7
|
base >=4.7
|
||||||
, cmdargs
|
|
||||||
, containers
|
, containers
|
||||||
, exceptions
|
|
||||||
, filepath
|
|
||||||
, haskeline
|
, haskeline
|
||||||
, megaparsec
|
, megaparsec
|
||||||
, mtl
|
, mtl
|
||||||
, text
|
|
||||||
, transformers
|
|
||||||
other-modules:
|
other-modules:
|
||||||
Eval
|
Eval
|
||||||
FileEval
|
|
||||||
Lexer
|
Lexer
|
||||||
|
Library
|
||||||
Parser
|
Parser
|
||||||
REPL
|
REPL
|
||||||
Research
|
Research
|
||||||
@ -46,30 +45,20 @@ test-suite tricu-tests
|
|||||||
type: exitcode-stdio-1.0
|
type: exitcode-stdio-1.0
|
||||||
main-is: Spec.hs
|
main-is: Spec.hs
|
||||||
hs-source-dirs: test, src
|
hs-source-dirs: test, src
|
||||||
default-extensions:
|
|
||||||
DeriveDataTypeable
|
|
||||||
LambdaCase
|
|
||||||
MultiWayIf
|
|
||||||
OverloadedStrings
|
|
||||||
build-depends:
|
build-depends:
|
||||||
base
|
base
|
||||||
, cmdargs
|
|
||||||
, containers
|
, containers
|
||||||
, exceptions
|
|
||||||
, filepath
|
|
||||||
, haskeline
|
, haskeline
|
||||||
, megaparsec
|
, megaparsec
|
||||||
, mtl
|
, mtl
|
||||||
, tasty
|
, tasty
|
||||||
, tasty-hunit
|
, tasty-hunit
|
||||||
, tasty-quickcheck
|
, tasty-quickcheck
|
||||||
, text
|
|
||||||
, transformers
|
|
||||||
default-language: Haskell2010
|
default-language: Haskell2010
|
||||||
other-modules:
|
other-modules:
|
||||||
Eval
|
Eval
|
||||||
FileEval
|
|
||||||
Lexer
|
Lexer
|
||||||
|
Library
|
||||||
Parser
|
Parser
|
||||||
REPL
|
REPL
|
||||||
Research
|
Research
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user