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module.exports = { | ||
'env': { | ||
'commonjs': true, | ||
'es2021': true, | ||
}, | ||
'extends': 'google', | ||
'overrides': [ | ||
], | ||
'parserOptions': { | ||
'ecmaVersion': 'latest', | ||
'sourceType': 'module', | ||
}, | ||
'rules': { | ||
'indent': ['error', 2, {'SwitchCase': 1}], | ||
'max-len': [ | ||
'error', | ||
{'code': 120, 'ignoreComments': true, 'ignoreUrls': true, 'ignoreStrings': true}, | ||
], | ||
}, | ||
}; |
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/src/** linguist-vendored | ||
/examples/* linguist-vendored | ||
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src/grammar.json -diff | ||
src/node-types.json -diff | ||
src/parser.c -diff |
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name: CI | ||
|
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on: | ||
push: | ||
branches: | ||
- master | ||
pull_request: | ||
branches: | ||
- "**" | ||
|
||
jobs: | ||
test: | ||
runs-on: ${{ matrix.os }} | ||
strategy: | ||
fail-fast: true | ||
matrix: | ||
os: [macos-latest, ubuntu-latest] | ||
steps: | ||
- uses: actions/checkout@v3 | ||
- uses: actions/setup-node@v2 | ||
with: | ||
node-version: 16 | ||
- run: npm install | ||
- run: npm test | ||
|
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test_windows: | ||
runs-on: windows-2019 | ||
steps: | ||
- uses: actions/checkout@v3 | ||
- uses: actions/setup-node@v2 | ||
with: | ||
node-version: 16 | ||
- run: npm install | ||
- run: npm run-script test-windows |
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name: Fuzz Parser | ||
|
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on: | ||
push: | ||
paths: | ||
- src/scanner.cc | ||
pull_request: | ||
paths: | ||
- src/scanner.cc | ||
|
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jobs: | ||
test: | ||
name: Parser fuzzing | ||
runs-on: ubuntu-latest | ||
steps: | ||
- uses: actions/checkout@v3 | ||
- uses: vigoux/tree-sitter-fuzz-action@v1 | ||
- run: npm install | ||
with: | ||
language: starlark | ||
external-scanner: src/scanner.cc | ||
time: 60 |
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name: Publish | ||
|
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on: | ||
push: | ||
branches: | ||
- master | ||
tags: | ||
- "v*" | ||
workflow_dispatch: | ||
|
||
jobs: | ||
build: | ||
runs-on: ubuntu-latest | ||
steps: | ||
- uses: actions/checkout@v3 | ||
- uses: actions/setup-node@v3 | ||
with: | ||
node-version: 16 | ||
- run: npm install | ||
- run: npm test | ||
|
||
publish-npm: | ||
if: startsWith(github.ref, 'refs/tags/v') | ||
needs: build | ||
runs-on: ubuntu-latest | ||
|
||
steps: | ||
- uses: actions/checkout@v3 | ||
- uses: actions/setup-node@v3 | ||
with: | ||
node-version: 16 | ||
registry-url: https://registry.npmjs.org/ | ||
- run: npm install | ||
- run: npm publish | ||
env: | ||
NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}} | ||
|
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publish-crates: | ||
if: startsWith(github.ref, 'refs/tags/v') | ||
needs: build | ||
runs-on: ubuntu-latest | ||
steps: | ||
- uses: actions/checkout@v3 | ||
- uses: actions-rs/toolchain@v1 | ||
with: | ||
profile: minimal | ||
toolchain: stable | ||
override: true | ||
- uses: katyo/publish-crates@v2 | ||
with: | ||
registry-token: ${{ secrets.CARGO_REGISTRY_TOKEN }} |
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Cargo.lock | ||
package-lock.json | ||
/build | ||
/node_modules | ||
/examples/*/ | ||
/target |
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[package] | ||
name = "tree-sitter-starlark" | ||
description = "Starlark grammar for tree-sitter" | ||
version = "0.0.1" | ||
authors = ["Amaan Qureshi <amaanq12@gmail.com>"] | ||
keywords = ["incremental", "parsing", "starlark", "bazel", "bzl"] | ||
categories = ["parsing", "text-editors"] | ||
repository = "https://github.com/amaanq/tree-sitter-starlark" | ||
edition = "2021" | ||
license = "MIT" | ||
|
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build = "bindings/rust/build.rs" | ||
include = ["bindings/rust/*", "grammar.js", "queries/*", "src/*"] | ||
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[lib] | ||
path = "bindings/rust/lib.rs" | ||
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[dependencies] | ||
tree-sitter = "~0.20.3" | ||
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[build-dependencies] | ||
cc = "1.0" |
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Copyright (c) 2023 Amaan Qureshi <amaanq12@gmail.com> | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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# tree-sitter-starlark | ||
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[![Build Status](https://github.com/amaanq/tree-sitter-starlark/actions/workflows/ci.yml/badge.svg)](https://github.com/amaanq/tree-sitter-starlark/actions/workflows/ci.yml) | ||
[![Discord](https://img.shields.io/discord/1063097320771698699?logo=discord)](https://discord.gg/w7nTvsVJhm) | ||
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Starlark grammar for [tree-sitter](https://github.com/tree-sitter/tree-sitter) | ||
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Adapted from the [official spec](https://github.com/bazelbuild/starlark/blob/master/spec.md) | ||
and the [Google spec](https://github.com/google/starlark-go/blob/master/doc/spec.md) |
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{ | ||
"targets": [ | ||
{ | ||
"target_name": "tree_sitter_starlark_binding", | ||
"include_dirs": [ | ||
"<!(node -e \"require('nan')\")", | ||
"src" | ||
], | ||
"sources": [ | ||
"bindings/node/binding.cc", | ||
"src/parser.c", | ||
"src/scanner.cc", | ||
], | ||
"cflags_c": [ | ||
"-std=c99", | ||
] | ||
} | ||
] | ||
} |
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#include "nan.h" | ||
#include "tree_sitter/parser.h" | ||
#include <node.h> | ||
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using namespace v8; | ||
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extern "C" TSLanguage *tree_sitter_starlark(); | ||
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namespace { | ||
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NAN_METHOD(New) {} | ||
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void Init(Local<Object> exports, Local<Object> module) { | ||
Local<FunctionTemplate> tpl = Nan::New<FunctionTemplate>(New); | ||
tpl->SetClassName(Nan::New("Language").ToLocalChecked()); | ||
tpl->InstanceTemplate()->SetInternalFieldCount(1); | ||
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Local<Function> constructor = Nan::GetFunction(tpl).ToLocalChecked(); | ||
Local<Object> instance = | ||
constructor->NewInstance(Nan::GetCurrentContext()).ToLocalChecked(); | ||
Nan::SetInternalFieldPointer(instance, 0, tree_sitter_starlark()); | ||
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Nan::Set(instance, Nan::New("name").ToLocalChecked(), | ||
Nan::New("starlark").ToLocalChecked()); | ||
Nan::Set(module, Nan::New("exports").ToLocalChecked(), instance); | ||
} | ||
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NODE_MODULE(tree_sitter_starlark_binding, Init) | ||
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} // namespace |
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try { | ||
module.exports = require('../../build/Release/tree_sitter_starlark_binding'); | ||
} catch (error1) { | ||
if (error1.code !== 'MODULE_NOT_FOUND') { | ||
throw error1; | ||
} | ||
try { | ||
module.exports = require('../../build/Debug/tree_sitter_starlark_binding'); | ||
} catch (error2) { | ||
if (error2.code !== 'MODULE_NOT_FOUND') { | ||
throw error2; | ||
} | ||
throw error1; | ||
} | ||
} | ||
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try { | ||
module.exports.nodeTypeInfo = require('../../src/node-types.json'); | ||
} catch (_) {} |
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fn main() { | ||
let src_dir = std::path::Path::new("src"); | ||
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let mut c_config = cc::Build::new(); | ||
c_config.include(src_dir); | ||
c_config | ||
.flag_if_supported("-Wno-unused-parameter") | ||
.flag_if_supported("-Wno-unused-but-set-variable") | ||
.flag_if_supported("-Wno-trigraphs"); | ||
let parser_path = src_dir.join("parser.c"); | ||
c_config.file(&parser_path); | ||
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// If your language uses an external scanner written in C, | ||
// then include this block of code: | ||
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/* | ||
let scanner_path = src_dir.join("scanner.c"); | ||
c_config.file(&scanner_path); | ||
println!("cargo:rerun-if-changed={}", scanner_path.to_str().unwrap()); | ||
*/ | ||
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c_config.compile("parser"); | ||
println!("cargo:rerun-if-changed={}", parser_path.to_str().unwrap()); | ||
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// If your language uses an external scanner written in C++, | ||
// then include this block of code: | ||
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let mut cpp_config = cc::Build::new(); | ||
cpp_config.cpp(true); | ||
cpp_config.include(src_dir); | ||
cpp_config | ||
.flag_if_supported("-Wno-unused-parameter") | ||
.flag_if_supported("-Wno-unused-but-set-variable"); | ||
let scanner_path = src_dir.join("scanner.cc"); | ||
cpp_config.file(&scanner_path); | ||
cpp_config.compile("scanner"); | ||
println!("cargo:rerun-if-changed={}", scanner_path.to_str().unwrap()); | ||
} |
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//! This crate provides starlark language support for the [tree-sitter][] parsing library. | ||
//! | ||
//! Typically, you will use the [language][language func] function to add this language to a | ||
//! tree-sitter [Parser][], and then use the parser to parse some code: | ||
//! | ||
//! ``` | ||
//! let code = ""; | ||
//! let mut parser = tree_sitter::Parser::new(); | ||
//! parser.set_language(tree_sitter_starlark::language()).expect("Error loading starlark grammar"); | ||
//! let tree = parser.parse(code, None).unwrap(); | ||
//! ``` | ||
//! | ||
//! [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html | ||
//! [language func]: fn.language.html | ||
//! [Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html | ||
//! [tree-sitter]: https://tree-sitter.github.io/ | ||
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use tree_sitter::Language; | ||
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extern "C" { | ||
fn tree_sitter_starlark() -> Language; | ||
} | ||
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/// Get the tree-sitter [Language][] for this grammar. | ||
/// | ||
/// [Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html | ||
pub fn language() -> Language { | ||
unsafe { tree_sitter_starlark() } | ||
} | ||
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/// The content of the [`node-types.json`][] file for this grammar. | ||
/// | ||
/// [`node-types.json`]: https://tree-sitter.github.io/tree-sitter/using-parsers#static-node-types | ||
pub const NODE_TYPES: &str = include_str!("../../src/node-types.json"); | ||
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// Uncomment these to include any queries that this grammar contains | ||
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pub const HIGHLIGHTS_QUERY: &str = include_str!("../../queries/highlights.scm"); | ||
pub const INJECTIONS_QUERY: &str = include_str!("../../queries/injections.scm"); | ||
pub const LOCALS_QUERY: &str = include_str!("../../queries/locals.scm"); | ||
// pub const TAGS_QUERY: &'static str = include_str!("../../queries/tags.scm"); | ||
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#[cfg(test)] | ||
mod tests { | ||
#[test] | ||
fn test_can_load_grammar() { | ||
let mut parser = tree_sitter::Parser::new(); | ||
parser | ||
.set_language(super::language()) | ||
.expect("Error loading starlark language"); | ||
} | ||
} |
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def fizz_buzz(n): | ||
"""Print Fizz Buzz numbers from 1 to n.""" | ||
for i in range(1, n + 1): | ||
s = "" | ||
if i % 3 == 0: | ||
s += "Fizz" | ||
if i % 5 == 0: | ||
s += "Buzz" | ||
print(s if s else i) | ||
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fizz_buzz(20) |
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# `foo.bzl` | ||
var = [] # declare a list | ||
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def fct(): # declare a function | ||
var.append(5) # append a value to the list | ||
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fct() # execute the fct function |
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# `bar.bzl` | ||
load(":foo.bzl", "var", "fct") # loads `var`, and `fct` from `./foo.bzl` | ||
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var.append(6) # runtime error, the list stored in var is frozen | ||
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fct() # runtime error, fct() attempts to modify a frozen list |
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