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mhoffm
2021-06-07 20:50:00 +02:00
parent 89c1b30cde
commit ba9acb912f
15 changed files with 2732 additions and 0 deletions
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26
Cargo.toml Normal file
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[package]
name = "tree-sitter-YOUR-LANGUAGE-NAME"
description = "YOUR-LANGUAGE-NAME grammar for the tree-sitter parsing library"
version = "0.0.1"
keywords = ["incremental", "parsing", "YOUR-LANGUAGE-NAME"]
categories = ["parsing", "text-editors"]
repository = "https://github.com/tree-sitter/tree-sitter-javascript"
edition = "2018"
license = "MIT"
build = "bindings/rust/build.rs"
include = [
"bindings/rust/*",
"grammar.js",
"queries/*",
"src/*",
]
[lib]
path = "bindings/rust/lib.rs"
[dependencies]
tree-sitter = "0.19.3"
[build-dependencies]
cc = "1.0"

19
binding.gyp Normal file
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{
"targets": [
{
"target_name": "tree_sitter_YOUR_LANGUAGE_NAME_binding",
"include_dirs": [
"<!(node -e \"require('nan')\")",
"src"
],
"sources": [
"bindings/node/binding.cc",
"src/parser.c",
# If your language uses an external scanner, add it here.
],
"cflags_c": [
"-std=c99",
]
}
]
}

28
bindings/node/binding.cc Normal file
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#include "tree_sitter/parser.h"
#include <node.h>
#include "nan.h"
using namespace v8;
extern "C" TSLanguage * tree_sitter_YOUR_LANGUAGE_NAME();
namespace {
NAN_METHOD(New) {}
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);
Local<Function> constructor = Nan::GetFunction(tpl).ToLocalChecked();
Local<Object> instance = constructor->NewInstance(Nan::GetCurrentContext()).ToLocalChecked();
Nan::SetInternalFieldPointer(instance, 0, tree_sitter_YOUR_LANGUAGE_NAME());
Nan::Set(instance, Nan::New("name").ToLocalChecked(), Nan::New("YOUR_LANGUAGE_NAME").ToLocalChecked());
Nan::Set(module, Nan::New("exports").ToLocalChecked(), instance);
}
NODE_MODULE(tree_sitter_YOUR_LANGUAGE_NAME_binding, Init)
} // namespace

19
bindings/node/index.js Normal file
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try {
module.exports = require("../../build/Release/tree_sitter_YOUR_LANGUAGE_NAME_binding");
} catch (error1) {
if (error1.code !== 'MODULE_NOT_FOUND') {
throw error1;
}
try {
module.exports = require("../../build/Debug/tree_sitter_YOUR_LANGUAGE_NAME_binding");
} catch (error2) {
if (error2.code !== 'MODULE_NOT_FOUND') {
throw error2;
}
throw error1
}
}
try {
module.exports.nodeTypeInfo = require("../../src/node-types.json");
} catch (_) {}

40
bindings/rust/build.rs Normal file
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fn main() {
let src_dir = std::path::Path::new("src");
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);
// If your language uses an external scanner written in C,
// then include this block of code:
/*
let scanner_path = src_dir.join("scanner.c");
c_config.file(&scanner_path);
println!("cargo:rerun-if-changed={}", scanner_path.to_str().unwrap());
*/
c_config.compile("parser");
println!("cargo:rerun-if-changed={}", parser_path.to_str().unwrap());
// If your language uses an external scanner written in C++,
// then include this block of code:
/*
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());
*/
}

52
bindings/rust/lib.rs Normal file
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//! This crate provides YOUR_LANGUAGE_NAME 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_YOUR_LANGUAGE_NAME::language()).expect("Error loading YOUR_LANGUAGE_NAME 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/
use tree_sitter::Language;
extern "C" {
fn tree_sitter_YOUR_LANGUAGE_NAME() -> Language;
}
/// 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_YOUR_LANGUAGE_NAME() }
}
/// 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: &'static str = include_str!("../../src/node-types.json");
// Uncomment these to include any queries that this grammar contains
// pub const HIGHLIGHTS_QUERY: &'static str = include_str!("../../queries/highlights.scm");
// pub const INJECTIONS_QUERY: &'static str = include_str!("../../queries/injections.scm");
// pub const LOCALS_QUERY: &'static str = include_str!("../../queries/locals.scm");
// pub const TAGS_QUERY: &'static str = include_str!("../../queries/tags.scm");
#[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 YOUR_LANGUAGE_NAME language");
}
}

16
default.nix Normal file
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{ nixpkgs ? import <nixpkgs> { } }:
let
pkgs = [
nixpkgs.nodejs
];
in
nixpkgs.stdenv.mkDerivation {
name = "env";
buildInputs = pkgs;
shellHook = ''
PATH=./node_modules/.bin:$PATH
command -v tree-sitter >/dev/null 2>&1 || npm install tree-sitter-cli
'';
}

106
grammar.js Normal file
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const
newline = '\n',
space = ' ',
decimal = /[0-9]/
module.exports = grammar({
name: 'hcl',
conflicts: $ => [
[$.body],
],
extras: $ => [
$.comment,
/\s/,
],
rules: {
config_file: $ => $.body,
body: $ => repeat1(seq(
choice(
$.attribute,
$.block,
),
repeat1(newline),
)),
attribute: $ => seq(
$.identifier,
'=',
$.expression
),
block: $ => seq(
$.identifier,
repeat(choice($.string_lit, $.identifier)),
'{',
repeat1(newline),
optional($.body),
// newline is handled in body
'}',
),
expression: $ => choice(
$.expr_term,
//$.operation,
//$.conditional,
),
expr_term: $ => choice(
$.literal_value,
// $.collection_value,
// $.template_expr,
$.variable_expr,
// $.function_call,
// $.for_expr,
// seq($.expr_term, $.index),
// seq($.expr_term, $.get_attr),
// seq($.expr_term, $.splat),
// seq($.expr_term, $.splat),
seq('(', $.expression, ')'),
),
literal_value: $ => choice(
$.numeric_lit,
$.string_lit,
'true',
'false',
'null',
),
numeric_lit: $ => seq(
repeat1(decimal),
optional(seq('.', repeat1(decimal))),
optional(seq(choice('e', 'E'), optional(choice('+', '-')), repeat1(decimal))),
),
variable_expr: $ => $.identifier,
// TODO: template expressions
//template_expr: $ => choice(
//$.quoted_template,
//$.heredoc_template,
//),
//quoted_template: $ => seq('"', /\w+/, '"'),
//heredoc_template: $ => '',
// TODO: string_literals are special template literals
string_lit: $ => seq('"', /\w+/, '"'),
// TODO: unicode identifier
identifier: $ => /\w+/,
// http://stackoverflow.com/questions/13014947/regex-to-match-a-c-style-multiline-comment/36328890#36328890
comment: $ => token(choice(
seq('#', /.*/),
seq('//', /.*/),
seq(
'/*',
/[^*]*\*+([^/*][^*]*\*+)*/,
'/'
)
))
}
});

13
package-lock.json generated Normal file
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{
"name": "tree-sitter-hcl",
"version": "1.0.0",
"lockfileVersion": 1,
"requires": true,
"dependencies": {
"tree-sitter-cli": {
"version": "0.19.5",
"resolved": "https://registry.npmjs.org/tree-sitter-cli/-/tree-sitter-cli-0.19.5.tgz",
"integrity": "sha512-kRzKrUAwpDN9AjA3b0tPBwT1hd8N2oQvvvHup2OEsX6mdsSMLmAvR+NSqK9fe05JrRbVvG8mbteNUQsxlMQohQ=="
}
}
}

25
package.json Normal file
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{
"name": "tree-sitter-hcl",
"version": "1.0.0",
"description": "",
"main": "bindings/node",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"nan": "^2.14.2",
"tree-sitter-cli": "^0.19.5"
},
"tree-sitter": [
{
"scope": "source.hcl",
"file-types": [
"hcl",
"tf",
"tfvars"
]
}
]
}

6
queries/highlights.scm Normal file
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; highlights.scm
(string_lit) @keyword
(identifier) @type
(numeric_lit) @number
(comment) @comment

356
src/grammar.json Normal file
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{
"name": "hcl",
"rules": {
"config_file": {
"type": "SYMBOL",
"name": "body"
},
"body": {
"type": "REPEAT1",
"content": {
"type": "SEQ",
"members": [
{
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "attribute"
},
{
"type": "SYMBOL",
"name": "block"
}
]
},
{
"type": "REPEAT1",
"content": {
"type": "STRING",
"value": "\n"
}
}
]
}
},
"attribute": {
"type": "SEQ",
"members": [
{
"type": "SYMBOL",
"name": "identifier"
},
{
"type": "STRING",
"value": "="
},
{
"type": "SYMBOL",
"name": "expression"
}
]
},
"block": {
"type": "SEQ",
"members": [
{
"type": "SYMBOL",
"name": "identifier"
},
{
"type": "REPEAT",
"content": {
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "string_lit"
},
{
"type": "SYMBOL",
"name": "identifier"
}
]
}
},
{
"type": "STRING",
"value": "{"
},
{
"type": "REPEAT1",
"content": {
"type": "STRING",
"value": "\n"
}
},
{
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "body"
},
{
"type": "BLANK"
}
]
},
{
"type": "STRING",
"value": "}"
}
]
},
"expression": {
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "expr_term"
}
]
},
"expr_term": {
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "literal_value"
},
{
"type": "SYMBOL",
"name": "variable_expr"
},
{
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "("
},
{
"type": "SYMBOL",
"name": "expression"
},
{
"type": "STRING",
"value": ")"
}
]
}
]
},
"literal_value": {
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "numeric_lit"
},
{
"type": "SYMBOL",
"name": "string_lit"
},
{
"type": "STRING",
"value": "true"
},
{
"type": "STRING",
"value": "false"
},
{
"type": "STRING",
"value": "null"
}
]
},
"numeric_lit": {
"type": "SEQ",
"members": [
{
"type": "REPEAT1",
"content": {
"type": "PATTERN",
"value": "[0-9]"
}
},
{
"type": "CHOICE",
"members": [
{
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "."
},
{
"type": "REPEAT1",
"content": {
"type": "PATTERN",
"value": "[0-9]"
}
}
]
},
{
"type": "BLANK"
}
]
},
{
"type": "CHOICE",
"members": [
{
"type": "SEQ",
"members": [
{
"type": "CHOICE",
"members": [
{
"type": "STRING",
"value": "e"
},
{
"type": "STRING",
"value": "E"
}
]
},
{
"type": "CHOICE",
"members": [
{
"type": "CHOICE",
"members": [
{
"type": "STRING",
"value": "+"
},
{
"type": "STRING",
"value": "-"
}
]
},
{
"type": "BLANK"
}
]
},
{
"type": "REPEAT1",
"content": {
"type": "PATTERN",
"value": "[0-9]"
}
}
]
},
{
"type": "BLANK"
}
]
}
]
},
"variable_expr": {
"type": "SYMBOL",
"name": "identifier"
},
"string_lit": {
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "\""
},
{
"type": "PATTERN",
"value": "\\w+"
},
{
"type": "STRING",
"value": "\""
}
]
},
"identifier": {
"type": "PATTERN",
"value": "\\w+"
},
"comment": {
"type": "TOKEN",
"content": {
"type": "CHOICE",
"members": [
{
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "#"
},
{
"type": "PATTERN",
"value": ".*"
}
]
},
{
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "//"
},
{
"type": "PATTERN",
"value": ".*"
}
]
},
{
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "/*"
},
{
"type": "PATTERN",
"value": "[^*]*\\*+([^/*][^*]*\\*+)*"
},
{
"type": "STRING",
"value": "/"
}
]
}
]
}
}
},
"extras": [
{
"type": "SYMBOL",
"name": "comment"
},
{
"type": "PATTERN",
"value": "\\s"
}
],
"conflicts": [
[
"body"
]
],
"precedences": [],
"externals": [],
"inline": [],
"supertypes": []
}

229
src/node-types.json Normal file
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[
{
"type": "attribute",
"named": true,
"fields": {},
"children": {
"multiple": true,
"required": true,
"types": [
{
"type": "expression",
"named": true
},
{
"type": "identifier",
"named": true
}
]
}
},
{
"type": "block",
"named": true,
"fields": {},
"children": {
"multiple": true,
"required": true,
"types": [
{
"type": "body",
"named": true
},
{
"type": "identifier",
"named": true
},
{
"type": "string_lit",
"named": true
}
]
}
},
{
"type": "body",
"named": true,
"fields": {},
"children": {
"multiple": true,
"required": true,
"types": [
{
"type": "attribute",
"named": true
},
{
"type": "block",
"named": true
}
]
}
},
{
"type": "config_file",
"named": true,
"fields": {},
"children": {
"multiple": false,
"required": true,
"types": [
{
"type": "body",
"named": true
}
]
}
},
{
"type": "expr_term",
"named": true,
"fields": {},
"children": {
"multiple": false,
"required": true,
"types": [
{
"type": "expression",
"named": true
},
{
"type": "literal_value",
"named": true
},
{
"type": "variable_expr",
"named": true
}
]
}
},
{
"type": "expression",
"named": true,
"fields": {},
"children": {
"multiple": false,
"required": true,
"types": [
{
"type": "expr_term",
"named": true
}
]
}
},
{
"type": "identifier",
"named": true,
"fields": {}
},
{
"type": "literal_value",
"named": true,
"fields": {},
"children": {
"multiple": false,
"required": false,
"types": [
{
"type": "numeric_lit",
"named": true
},
{
"type": "string_lit",
"named": true
}
]
}
},
{
"type": "numeric_lit",
"named": true,
"fields": {}
},
{
"type": "string_lit",
"named": true,
"fields": {}
},
{
"type": "variable_expr",
"named": true,
"fields": {},
"children": {
"multiple": false,
"required": true,
"types": [
{
"type": "identifier",
"named": true
}
]
}
},
{
"type": "\n",
"named": false
},
{
"type": "\"",
"named": false
},
{
"type": "(",
"named": false
},
{
"type": ")",
"named": false
},
{
"type": "+",
"named": false
},
{
"type": "-",
"named": false
},
{
"type": ".",
"named": false
},
{
"type": "=",
"named": false
},
{
"type": "E",
"named": false
},
{
"type": "comment",
"named": true
},
{
"type": "e",
"named": false
},
{
"type": "false",
"named": false
},
{
"type": "null",
"named": false
},
{
"type": "true",
"named": false
},
{
"type": "{",
"named": false
},
{
"type": "}",
"named": false
}
]

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223
src/tree_sitter/parser.h Normal file
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#ifndef TREE_SITTER_PARSER_H_
#define TREE_SITTER_PARSER_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#define ts_builtin_sym_error ((TSSymbol)-1)
#define ts_builtin_sym_end 0
#define TREE_SITTER_SERIALIZATION_BUFFER_SIZE 1024
typedef uint16_t TSStateId;
#ifndef TREE_SITTER_API_H_
typedef uint16_t TSSymbol;
typedef uint16_t TSFieldId;
typedef struct TSLanguage TSLanguage;
#endif
typedef struct {
TSFieldId field_id;
uint8_t child_index;
bool inherited;
} TSFieldMapEntry;
typedef struct {
uint16_t index;
uint16_t length;
} TSFieldMapSlice;
typedef struct {
bool visible;
bool named;
bool supertype;
} TSSymbolMetadata;
typedef struct TSLexer TSLexer;
struct TSLexer {
int32_t lookahead;
TSSymbol result_symbol;
void (*advance)(TSLexer *, bool);
void (*mark_end)(TSLexer *);
uint32_t (*get_column)(TSLexer *);
bool (*is_at_included_range_start)(const TSLexer *);
bool (*eof)(const TSLexer *);
};
typedef enum {
TSParseActionTypeShift,
TSParseActionTypeReduce,
TSParseActionTypeAccept,
TSParseActionTypeRecover,
} TSParseActionType;
typedef union {
struct {
uint8_t type;
TSStateId state;
bool extra;
bool repetition;
} shift;
struct {
uint8_t type;
uint8_t child_count;
TSSymbol symbol;
int16_t dynamic_precedence;
uint16_t production_id;
} reduce;
uint8_t type;
} TSParseAction;
typedef struct {
uint16_t lex_state;
uint16_t external_lex_state;
} TSLexMode;
typedef union {
TSParseAction action;
struct {
uint8_t count;
bool reusable;
} entry;
} TSParseActionEntry;
struct TSLanguage {
uint32_t version;
uint32_t symbol_count;
uint32_t alias_count;
uint32_t token_count;
uint32_t external_token_count;
uint32_t state_count;
uint32_t large_state_count;
uint32_t production_id_count;
uint32_t field_count;
uint16_t max_alias_sequence_length;
const uint16_t *parse_table;
const uint16_t *small_parse_table;
const uint32_t *small_parse_table_map;
const TSParseActionEntry *parse_actions;
const char * const *symbol_names;
const char * const *field_names;
const TSFieldMapSlice *field_map_slices;
const TSFieldMapEntry *field_map_entries;
const TSSymbolMetadata *symbol_metadata;
const TSSymbol *public_symbol_map;
const uint16_t *alias_map;
const TSSymbol *alias_sequences;
const TSLexMode *lex_modes;
bool (*lex_fn)(TSLexer *, TSStateId);
bool (*keyword_lex_fn)(TSLexer *, TSStateId);
TSSymbol keyword_capture_token;
struct {
const bool *states;
const TSSymbol *symbol_map;
void *(*create)(void);
void (*destroy)(void *);
bool (*scan)(void *, TSLexer *, const bool *symbol_whitelist);
unsigned (*serialize)(void *, char *);
void (*deserialize)(void *, const char *, unsigned);
} external_scanner;
};
/*
* Lexer Macros
*/
#define START_LEXER() \
bool result = false; \
bool skip = false; \
bool eof = false; \
int32_t lookahead; \
goto start; \
next_state: \
lexer->advance(lexer, skip); \
start: \
skip = false; \
lookahead = lexer->lookahead;
#define ADVANCE(state_value) \
{ \
state = state_value; \
goto next_state; \
}
#define SKIP(state_value) \
{ \
skip = true; \
state = state_value; \
goto next_state; \
}
#define ACCEPT_TOKEN(symbol_value) \
result = true; \
lexer->result_symbol = symbol_value; \
lexer->mark_end(lexer);
#define END_STATE() return result;
/*
* Parse Table Macros
*/
#define SMALL_STATE(id) id - LARGE_STATE_COUNT
#define STATE(id) id
#define ACTIONS(id) id
#define SHIFT(state_value) \
{{ \
.shift = { \
.type = TSParseActionTypeShift, \
.state = state_value \
} \
}}
#define SHIFT_REPEAT(state_value) \
{{ \
.shift = { \
.type = TSParseActionTypeShift, \
.state = state_value, \
.repetition = true \
} \
}}
#define SHIFT_EXTRA() \
{{ \
.shift = { \
.type = TSParseActionTypeShift, \
.extra = true \
} \
}}
#define REDUCE(symbol_val, child_count_val, ...) \
{{ \
.reduce = { \
.type = TSParseActionTypeReduce, \
.symbol = symbol_val, \
.child_count = child_count_val, \
__VA_ARGS__ \
}, \
}}
#define RECOVER() \
{{ \
.type = TSParseActionTypeRecover \
}}
#define ACCEPT_INPUT() \
{{ \
.type = TSParseActionTypeAccept \
}}
#ifdef __cplusplus
}
#endif
#endif // TREE_SITTER_PARSER_H_