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Diffstat (limited to 'vendor/tree-sitter/lib/include/tree_sitter/api.h')
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diff --git a/vendor/tree-sitter/lib/include/tree_sitter/api.h b/vendor/tree-sitter/lib/include/tree_sitter/api.h new file mode 100644 index 0000000..56093d9 --- /dev/null +++ b/vendor/tree-sitter/lib/include/tree_sitter/api.h | |||
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| 1 | #ifndef TREE_SITTER_API_H_ | ||
| 2 | #define TREE_SITTER_API_H_ | ||
| 3 | |||
| 4 | #if defined(__GNUC__) || defined(__clang__) | ||
| 5 | #pragma GCC visibility push(default) | ||
| 6 | #endif | ||
| 7 | |||
| 8 | #ifdef __cplusplus | ||
| 9 | extern "C" { | ||
| 10 | #endif | ||
| 11 | |||
| 12 | #include <stdlib.h> | ||
| 13 | #include <stdint.h> | ||
| 14 | #include <stdbool.h> | ||
| 15 | |||
| 16 | /****************************/ | ||
| 17 | /* Section - ABI Versioning */ | ||
| 18 | /****************************/ | ||
| 19 | |||
| 20 | /** | ||
| 21 | * The latest ABI version that is supported by the current version of the | ||
| 22 | * library. When Languages are generated by the Tree-sitter CLI, they are | ||
| 23 | * assigned an ABI version number that corresponds to the current CLI version. | ||
| 24 | * The Tree-sitter library is generally backwards-compatible with languages | ||
| 25 | * generated using older CLI versions, but is not forwards-compatible. | ||
| 26 | */ | ||
| 27 | #define TREE_SITTER_LANGUAGE_VERSION 14 | ||
| 28 | |||
| 29 | /** | ||
| 30 | * The earliest ABI version that is supported by the current version of the | ||
| 31 | * library. | ||
| 32 | */ | ||
| 33 | #define TREE_SITTER_MIN_COMPATIBLE_LANGUAGE_VERSION 13 | ||
| 34 | |||
| 35 | /*******************/ | ||
| 36 | /* Section - Types */ | ||
| 37 | /*******************/ | ||
| 38 | |||
| 39 | typedef uint16_t TSStateId; | ||
| 40 | typedef uint16_t TSSymbol; | ||
| 41 | typedef uint16_t TSFieldId; | ||
| 42 | typedef struct TSLanguage TSLanguage; | ||
| 43 | typedef struct TSParser TSParser; | ||
| 44 | typedef struct TSTree TSTree; | ||
| 45 | typedef struct TSQuery TSQuery; | ||
| 46 | typedef struct TSQueryCursor TSQueryCursor; | ||
| 47 | typedef struct TSLookaheadIterator TSLookaheadIterator; | ||
| 48 | |||
| 49 | typedef enum { | ||
| 50 | TSInputEncodingUTF8, | ||
| 51 | TSInputEncodingUTF16, | ||
| 52 | } TSInputEncoding; | ||
| 53 | |||
| 54 | typedef enum { | ||
| 55 | TSSymbolTypeRegular, | ||
| 56 | TSSymbolTypeAnonymous, | ||
| 57 | TSSymbolTypeAuxiliary, | ||
| 58 | } TSSymbolType; | ||
| 59 | |||
| 60 | typedef struct { | ||
| 61 | uint32_t row; | ||
| 62 | uint32_t column; | ||
| 63 | } TSPoint; | ||
| 64 | |||
| 65 | typedef struct { | ||
| 66 | TSPoint start_point; | ||
| 67 | TSPoint end_point; | ||
| 68 | uint32_t start_byte; | ||
| 69 | uint32_t end_byte; | ||
| 70 | } TSRange; | ||
| 71 | |||
| 72 | typedef struct { | ||
| 73 | void *payload; | ||
| 74 | const char *(*read)(void *payload, uint32_t byte_index, TSPoint position, uint32_t *bytes_read); | ||
| 75 | TSInputEncoding encoding; | ||
| 76 | } TSInput; | ||
| 77 | |||
| 78 | typedef enum { | ||
| 79 | TSLogTypeParse, | ||
| 80 | TSLogTypeLex, | ||
| 81 | } TSLogType; | ||
| 82 | |||
| 83 | typedef struct { | ||
| 84 | void *payload; | ||
| 85 | void (*log)(void *payload, TSLogType log_type, const char *buffer); | ||
| 86 | } TSLogger; | ||
| 87 | |||
| 88 | typedef struct { | ||
| 89 | uint32_t start_byte; | ||
| 90 | uint32_t old_end_byte; | ||
| 91 | uint32_t new_end_byte; | ||
| 92 | TSPoint start_point; | ||
| 93 | TSPoint old_end_point; | ||
| 94 | TSPoint new_end_point; | ||
| 95 | } TSInputEdit; | ||
| 96 | |||
| 97 | typedef struct { | ||
| 98 | uint32_t context[4]; | ||
| 99 | const void *id; | ||
| 100 | const TSTree *tree; | ||
| 101 | } TSNode; | ||
| 102 | |||
| 103 | typedef struct { | ||
| 104 | const void *tree; | ||
| 105 | const void *id; | ||
| 106 | uint32_t context[2]; | ||
| 107 | } TSTreeCursor; | ||
| 108 | |||
| 109 | typedef struct { | ||
| 110 | TSNode node; | ||
| 111 | uint32_t index; | ||
| 112 | } TSQueryCapture; | ||
| 113 | |||
| 114 | typedef enum { | ||
| 115 | TSQuantifierZero = 0, // must match the array initialization value | ||
| 116 | TSQuantifierZeroOrOne, | ||
| 117 | TSQuantifierZeroOrMore, | ||
| 118 | TSQuantifierOne, | ||
| 119 | TSQuantifierOneOrMore, | ||
| 120 | } TSQuantifier; | ||
| 121 | |||
| 122 | typedef struct { | ||
| 123 | uint32_t id; | ||
| 124 | uint16_t pattern_index; | ||
| 125 | uint16_t capture_count; | ||
| 126 | const TSQueryCapture *captures; | ||
| 127 | } TSQueryMatch; | ||
| 128 | |||
| 129 | typedef enum { | ||
| 130 | TSQueryPredicateStepTypeDone, | ||
| 131 | TSQueryPredicateStepTypeCapture, | ||
| 132 | TSQueryPredicateStepTypeString, | ||
| 133 | } TSQueryPredicateStepType; | ||
| 134 | |||
| 135 | typedef struct { | ||
| 136 | TSQueryPredicateStepType type; | ||
| 137 | uint32_t value_id; | ||
| 138 | } TSQueryPredicateStep; | ||
| 139 | |||
| 140 | typedef enum { | ||
| 141 | TSQueryErrorNone = 0, | ||
| 142 | TSQueryErrorSyntax, | ||
| 143 | TSQueryErrorNodeType, | ||
| 144 | TSQueryErrorField, | ||
| 145 | TSQueryErrorCapture, | ||
| 146 | TSQueryErrorStructure, | ||
| 147 | TSQueryErrorLanguage, | ||
| 148 | } TSQueryError; | ||
| 149 | |||
| 150 | /********************/ | ||
| 151 | /* Section - Parser */ | ||
| 152 | /********************/ | ||
| 153 | |||
| 154 | /** | ||
| 155 | * Create a new parser. | ||
| 156 | */ | ||
| 157 | TSParser *ts_parser_new(void); | ||
| 158 | |||
| 159 | /** | ||
| 160 | * Delete the parser, freeing all of the memory that it used. | ||
| 161 | */ | ||
| 162 | void ts_parser_delete(TSParser *self); | ||
| 163 | |||
| 164 | /** | ||
| 165 | * Get the parser's current language. | ||
| 166 | */ | ||
| 167 | const TSLanguage *ts_parser_language(const TSParser *self); | ||
| 168 | |||
| 169 | /** | ||
| 170 | * Set the language that the parser should use for parsing. | ||
| 171 | * | ||
| 172 | * Returns a boolean indicating whether or not the language was successfully | ||
| 173 | * assigned. True means assignment succeeded. False means there was a version | ||
| 174 | * mismatch: the language was generated with an incompatible version of the | ||
| 175 | * Tree-sitter CLI. Check the language's version using [`ts_language_version`] | ||
| 176 | * and compare it to this library's [`TREE_SITTER_LANGUAGE_VERSION`] and | ||
| 177 | * [`TREE_SITTER_MIN_COMPATIBLE_LANGUAGE_VERSION`] constants. | ||
| 178 | */ | ||
| 179 | bool ts_parser_set_language(TSParser *self, const TSLanguage *language); | ||
| 180 | |||
| 181 | /** | ||
| 182 | * Set the ranges of text that the parser should include when parsing. | ||
| 183 | * | ||
| 184 | * By default, the parser will always include entire documents. This function | ||
| 185 | * allows you to parse only a *portion* of a document but still return a syntax | ||
| 186 | * tree whose ranges match up with the document as a whole. You can also pass | ||
| 187 | * multiple disjoint ranges. | ||
| 188 | * | ||
| 189 | * The second and third parameters specify the location and length of an array | ||
| 190 | * of ranges. The parser does *not* take ownership of these ranges; it copies | ||
| 191 | * the data, so it doesn't matter how these ranges are allocated. | ||
| 192 | * | ||
| 193 | * If `count` is zero, then the entire document will be parsed. Otherwise, | ||
| 194 | * the given ranges must be ordered from earliest to latest in the document, | ||
| 195 | * and they must not overlap. That is, the following must hold for all: | ||
| 196 | * | ||
| 197 | * `i < count - 1`: `ranges[i].end_byte <= ranges[i + 1].start_byte` | ||
| 198 | * | ||
| 199 | * If this requirement is not satisfied, the operation will fail, the ranges | ||
| 200 | * will not be assigned, and this function will return `false`. On success, | ||
| 201 | * this function returns `true` | ||
| 202 | */ | ||
| 203 | bool ts_parser_set_included_ranges( | ||
| 204 | TSParser *self, | ||
| 205 | const TSRange *ranges, | ||
| 206 | uint32_t count | ||
| 207 | ); | ||
| 208 | |||
| 209 | /** | ||
| 210 | * Get the ranges of text that the parser will include when parsing. | ||
| 211 | * | ||
| 212 | * The returned pointer is owned by the parser. The caller should not free it | ||
| 213 | * or write to it. The length of the array will be written to the given | ||
| 214 | * `count` pointer. | ||
| 215 | */ | ||
| 216 | const TSRange *ts_parser_included_ranges( | ||
| 217 | const TSParser *self, | ||
| 218 | uint32_t *count | ||
| 219 | ); | ||
| 220 | |||
| 221 | /** | ||
| 222 | * Use the parser to parse some source code and create a syntax tree. | ||
| 223 | * | ||
| 224 | * If you are parsing this document for the first time, pass `NULL` for the | ||
| 225 | * `old_tree` parameter. Otherwise, if you have already parsed an earlier | ||
| 226 | * version of this document and the document has since been edited, pass the | ||
| 227 | * previous syntax tree so that the unchanged parts of it can be reused. | ||
| 228 | * This will save time and memory. For this to work correctly, you must have | ||
| 229 | * already edited the old syntax tree using the [`ts_tree_edit`] function in a | ||
| 230 | * way that exactly matches the source code changes. | ||
| 231 | * | ||
| 232 | * The [`TSInput`] parameter lets you specify how to read the text. It has the | ||
| 233 | * following three fields: | ||
| 234 | * 1. [`read`]: A function to retrieve a chunk of text at a given byte offset | ||
| 235 | * and (row, column) position. The function should return a pointer to the | ||
| 236 | * text and write its length to the [`bytes_read`] pointer. The parser does | ||
| 237 | * not take ownership of this buffer; it just borrows it until it has | ||
| 238 | * finished reading it. The function should write a zero value to the | ||
| 239 | * [`bytes_read`] pointer to indicate the end of the document. | ||
| 240 | * 2. [`payload`]: An arbitrary pointer that will be passed to each invocation | ||
| 241 | * of the [`read`] function. | ||
| 242 | * 3. [`encoding`]: An indication of how the text is encoded. Either | ||
| 243 | * `TSInputEncodingUTF8` or `TSInputEncodingUTF16`. | ||
| 244 | * | ||
| 245 | * This function returns a syntax tree on success, and `NULL` on failure. There | ||
| 246 | * are three possible reasons for failure: | ||
| 247 | * 1. The parser does not have a language assigned. Check for this using the | ||
| 248 | [`ts_parser_language`] function. | ||
| 249 | * 2. Parsing was cancelled due to a timeout that was set by an earlier call to | ||
| 250 | * the [`ts_parser_set_timeout_micros`] function. You can resume parsing from | ||
| 251 | * where the parser left out by calling [`ts_parser_parse`] again with the | ||
| 252 | * same arguments. Or you can start parsing from scratch by first calling | ||
| 253 | * [`ts_parser_reset`]. | ||
| 254 | * 3. Parsing was cancelled using a cancellation flag that was set by an | ||
| 255 | * earlier call to [`ts_parser_set_cancellation_flag`]. You can resume parsing | ||
| 256 | * from where the parser left out by calling [`ts_parser_parse`] again with | ||
| 257 | * the same arguments. | ||
| 258 | * | ||
| 259 | * [`read`]: TSInput::read | ||
| 260 | * [`payload`]: TSInput::payload | ||
| 261 | * [`encoding`]: TSInput::encoding | ||
| 262 | * [`bytes_read`]: TSInput::read | ||
| 263 | */ | ||
| 264 | TSTree *ts_parser_parse( | ||
| 265 | TSParser *self, | ||
| 266 | const TSTree *old_tree, | ||
| 267 | TSInput input | ||
| 268 | ); | ||
| 269 | |||
| 270 | /** | ||
| 271 | * Use the parser to parse some source code stored in one contiguous buffer. | ||
| 272 | * The first two parameters are the same as in the [`ts_parser_parse`] function | ||
| 273 | * above. The second two parameters indicate the location of the buffer and its | ||
| 274 | * length in bytes. | ||
| 275 | */ | ||
| 276 | TSTree *ts_parser_parse_string( | ||
| 277 | TSParser *self, | ||
| 278 | const TSTree *old_tree, | ||
| 279 | const char *string, | ||
| 280 | uint32_t length | ||
| 281 | ); | ||
| 282 | |||
| 283 | /** | ||
| 284 | * Use the parser to parse some source code stored in one contiguous buffer with | ||
| 285 | * a given encoding. The first four parameters work the same as in the | ||
| 286 | * [`ts_parser_parse_string`] method above. The final parameter indicates whether | ||
| 287 | * the text is encoded as UTF8 or UTF16. | ||
| 288 | */ | ||
| 289 | TSTree *ts_parser_parse_string_encoding( | ||
| 290 | TSParser *self, | ||
| 291 | const TSTree *old_tree, | ||
| 292 | const char *string, | ||
| 293 | uint32_t length, | ||
| 294 | TSInputEncoding encoding | ||
| 295 | ); | ||
| 296 | |||
| 297 | /** | ||
| 298 | * Instruct the parser to start the next parse from the beginning. | ||
| 299 | * | ||
| 300 | * If the parser previously failed because of a timeout or a cancellation, then | ||
| 301 | * by default, it will resume where it left off on the next call to | ||
| 302 | * [`ts_parser_parse`] or other parsing functions. If you don't want to resume, | ||
| 303 | * and instead intend to use this parser to parse some other document, you must | ||
| 304 | * call [`ts_parser_reset`] first. | ||
| 305 | */ | ||
| 306 | void ts_parser_reset(TSParser *self); | ||
| 307 | |||
| 308 | /** | ||
| 309 | * Set the maximum duration in microseconds that parsing should be allowed to | ||
| 310 | * take before halting. | ||
| 311 | * | ||
| 312 | * If parsing takes longer than this, it will halt early, returning NULL. | ||
| 313 | * See [`ts_parser_parse`] for more information. | ||
| 314 | */ | ||
| 315 | void ts_parser_set_timeout_micros(TSParser *self, uint64_t timeout_micros); | ||
| 316 | |||
| 317 | /** | ||
| 318 | * Get the duration in microseconds that parsing is allowed to take. | ||
| 319 | */ | ||
| 320 | uint64_t ts_parser_timeout_micros(const TSParser *self); | ||
| 321 | |||
| 322 | /** | ||
| 323 | * Set the parser's current cancellation flag pointer. | ||
| 324 | * | ||
| 325 | * If a non-null pointer is assigned, then the parser will periodically read | ||
| 326 | * from this pointer during parsing. If it reads a non-zero value, it will | ||
| 327 | * halt early, returning NULL. See [`ts_parser_parse`] for more information. | ||
| 328 | */ | ||
| 329 | void ts_parser_set_cancellation_flag(TSParser *self, const size_t *flag); | ||
| 330 | |||
| 331 | /** | ||
| 332 | * Get the parser's current cancellation flag pointer. | ||
| 333 | */ | ||
| 334 | const size_t *ts_parser_cancellation_flag(const TSParser *self); | ||
| 335 | |||
| 336 | /** | ||
| 337 | * Set the logger that a parser should use during parsing. | ||
| 338 | * | ||
| 339 | * The parser does not take ownership over the logger payload. If a logger was | ||
| 340 | * previously assigned, the caller is responsible for releasing any memory | ||
| 341 | * owned by the previous logger. | ||
| 342 | */ | ||
| 343 | void ts_parser_set_logger(TSParser *self, TSLogger logger); | ||
| 344 | |||
| 345 | /** | ||
| 346 | * Get the parser's current logger. | ||
| 347 | */ | ||
| 348 | TSLogger ts_parser_logger(const TSParser *self); | ||
| 349 | |||
| 350 | /** | ||
| 351 | * Set the file descriptor to which the parser should write debugging graphs | ||
| 352 | * during parsing. The graphs are formatted in the DOT language. You may want | ||
| 353 | * to pipe these graphs directly to a `dot(1)` process in order to generate | ||
| 354 | * SVG output. You can turn off this logging by passing a negative number. | ||
| 355 | */ | ||
| 356 | void ts_parser_print_dot_graphs(TSParser *self, int fd); | ||
| 357 | |||
| 358 | /******************/ | ||
| 359 | /* Section - Tree */ | ||
| 360 | /******************/ | ||
| 361 | |||
| 362 | /** | ||
| 363 | * Create a shallow copy of the syntax tree. This is very fast. | ||
| 364 | * | ||
| 365 | * You need to copy a syntax tree in order to use it on more than one thread at | ||
| 366 | * a time, as syntax trees are not thread safe. | ||
| 367 | */ | ||
| 368 | TSTree *ts_tree_copy(const TSTree *self); | ||
| 369 | |||
| 370 | /** | ||
| 371 | * Delete the syntax tree, freeing all of the memory that it used. | ||
| 372 | */ | ||
| 373 | void ts_tree_delete(TSTree *self); | ||
| 374 | |||
| 375 | /** | ||
| 376 | * Get the root node of the syntax tree. | ||
| 377 | */ | ||
| 378 | TSNode ts_tree_root_node(const TSTree *self); | ||
| 379 | |||
| 380 | /** | ||
| 381 | * Get the root node of the syntax tree, but with its position | ||
| 382 | * shifted forward by the given offset. | ||
| 383 | */ | ||
| 384 | TSNode ts_tree_root_node_with_offset( | ||
| 385 | const TSTree *self, | ||
| 386 | uint32_t offset_bytes, | ||
| 387 | TSPoint offset_extent | ||
| 388 | ); | ||
| 389 | |||
| 390 | /** | ||
| 391 | * Get the language that was used to parse the syntax tree. | ||
| 392 | */ | ||
| 393 | const TSLanguage *ts_tree_language(const TSTree *self); | ||
| 394 | |||
| 395 | /** | ||
| 396 | * Get the array of included ranges that was used to parse the syntax tree. | ||
| 397 | * | ||
| 398 | * The returned pointer must be freed by the caller. | ||
| 399 | */ | ||
| 400 | TSRange *ts_tree_included_ranges(const TSTree *self, uint32_t *length); | ||
| 401 | |||
| 402 | /** | ||
| 403 | * Edit the syntax tree to keep it in sync with source code that has been | ||
| 404 | * edited. | ||
| 405 | * | ||
| 406 | * You must describe the edit both in terms of byte offsets and in terms of | ||
| 407 | * (row, column) coordinates. | ||
| 408 | */ | ||
| 409 | void ts_tree_edit(TSTree *self, const TSInputEdit *edit); | ||
| 410 | |||
| 411 | /** | ||
| 412 | * Compare an old edited syntax tree to a new syntax tree representing the same | ||
| 413 | * document, returning an array of ranges whose syntactic structure has changed. | ||
| 414 | * | ||
| 415 | * For this to work correctly, the old syntax tree must have been edited such | ||
| 416 | * that its ranges match up to the new tree. Generally, you'll want to call | ||
| 417 | * this function right after calling one of the [`ts_parser_parse`] functions. | ||
| 418 | * You need to pass the old tree that was passed to parse, as well as the new | ||
| 419 | * tree that was returned from that function. | ||
| 420 | * | ||
| 421 | * The returned array is allocated using `malloc` and the caller is responsible | ||
| 422 | * for freeing it using `free`. The length of the array will be written to the | ||
| 423 | * given `length` pointer. | ||
| 424 | */ | ||
| 425 | TSRange *ts_tree_get_changed_ranges( | ||
| 426 | const TSTree *old_tree, | ||
| 427 | const TSTree *new_tree, | ||
| 428 | uint32_t *length | ||
| 429 | ); | ||
| 430 | |||
| 431 | /** | ||
| 432 | * Write a DOT graph describing the syntax tree to the given file. | ||
| 433 | */ | ||
| 434 | void ts_tree_print_dot_graph(const TSTree *self, int file_descriptor); | ||
| 435 | |||
| 436 | /******************/ | ||
| 437 | /* Section - Node */ | ||
| 438 | /******************/ | ||
| 439 | |||
| 440 | /** | ||
| 441 | * Get the node's type as a null-terminated string. | ||
| 442 | */ | ||
| 443 | const char *ts_node_type(TSNode self); | ||
| 444 | |||
| 445 | /** | ||
| 446 | * Get the node's type as a numerical id. | ||
| 447 | */ | ||
| 448 | TSSymbol ts_node_symbol(TSNode self); | ||
| 449 | |||
| 450 | /** | ||
| 451 | * Get the node's language. | ||
| 452 | */ | ||
| 453 | const TSLanguage *ts_node_language(TSNode self); | ||
| 454 | |||
| 455 | /** | ||
| 456 | * Get the node's type as it appears in the grammar ignoring aliases as a | ||
| 457 | * null-terminated string. | ||
| 458 | */ | ||
| 459 | const char *ts_node_grammar_type(TSNode self); | ||
| 460 | |||
| 461 | /** | ||
| 462 | * Get the node's type as a numerical id as it appears in the grammar ignoring | ||
| 463 | * aliases. This should be used in [`ts_language_next_state`] instead of | ||
| 464 | * [`ts_node_symbol`]. | ||
| 465 | */ | ||
| 466 | TSSymbol ts_node_grammar_symbol(TSNode self); | ||
| 467 | |||
| 468 | /** | ||
| 469 | * Get the node's start byte. | ||
| 470 | */ | ||
| 471 | uint32_t ts_node_start_byte(TSNode self); | ||
| 472 | |||
| 473 | /** | ||
| 474 | * Get the node's start position in terms of rows and columns. | ||
| 475 | */ | ||
| 476 | TSPoint ts_node_start_point(TSNode self); | ||
| 477 | |||
| 478 | /** | ||
| 479 | * Get the node's end byte. | ||
| 480 | */ | ||
| 481 | uint32_t ts_node_end_byte(TSNode self); | ||
| 482 | |||
| 483 | /** | ||
| 484 | * Get the node's end position in terms of rows and columns. | ||
| 485 | */ | ||
| 486 | TSPoint ts_node_end_point(TSNode self); | ||
| 487 | |||
| 488 | /** | ||
| 489 | * Get an S-expression representing the node as a string. | ||
| 490 | * | ||
| 491 | * This string is allocated with `malloc` and the caller is responsible for | ||
| 492 | * freeing it using `free`. | ||
| 493 | */ | ||
| 494 | char *ts_node_string(TSNode self); | ||
| 495 | |||
| 496 | /** | ||
| 497 | * Check if the node is null. Functions like [`ts_node_child`] and | ||
| 498 | * [`ts_node_next_sibling`] will return a null node to indicate that no such node | ||
| 499 | * was found. | ||
| 500 | */ | ||
| 501 | bool ts_node_is_null(TSNode self); | ||
| 502 | |||
| 503 | /** | ||
| 504 | * Check if the node is *named*. Named nodes correspond to named rules in the | ||
| 505 | * grammar, whereas *anonymous* nodes correspond to string literals in the | ||
| 506 | * grammar. | ||
| 507 | */ | ||
| 508 | bool ts_node_is_named(TSNode self); | ||
| 509 | |||
| 510 | /** | ||
| 511 | * Check if the node is *missing*. Missing nodes are inserted by the parser in | ||
| 512 | * order to recover from certain kinds of syntax errors. | ||
| 513 | */ | ||
| 514 | bool ts_node_is_missing(TSNode self); | ||
| 515 | |||
| 516 | /** | ||
| 517 | * Check if the node is *extra*. Extra nodes represent things like comments, | ||
| 518 | * which are not required the grammar, but can appear anywhere. | ||
| 519 | */ | ||
| 520 | bool ts_node_is_extra(TSNode self); | ||
| 521 | |||
| 522 | /** | ||
| 523 | * Check if a syntax node has been edited. | ||
| 524 | */ | ||
| 525 | bool ts_node_has_changes(TSNode self); | ||
| 526 | |||
| 527 | /** | ||
| 528 | * Check if the node is a syntax error or contains any syntax errors. | ||
| 529 | */ | ||
| 530 | bool ts_node_has_error(TSNode self); | ||
| 531 | |||
| 532 | /** | ||
| 533 | * Check if the node is a syntax error. | ||
| 534 | */ | ||
| 535 | bool ts_node_is_error(TSNode self); | ||
| 536 | |||
| 537 | /** | ||
| 538 | * Get this node's parse state. | ||
| 539 | */ | ||
| 540 | TSStateId ts_node_parse_state(TSNode self); | ||
| 541 | |||
| 542 | /** | ||
| 543 | * Get the parse state after this node. | ||
| 544 | */ | ||
| 545 | TSStateId ts_node_next_parse_state(TSNode self); | ||
| 546 | |||
| 547 | /** | ||
| 548 | * Get the node's immediate parent. | ||
| 549 | */ | ||
| 550 | TSNode ts_node_parent(TSNode self); | ||
| 551 | |||
| 552 | /** | ||
| 553 | * Get the node's child at the given index, where zero represents the first | ||
| 554 | * child. | ||
| 555 | */ | ||
| 556 | TSNode ts_node_child(TSNode self, uint32_t child_index); | ||
| 557 | |||
| 558 | /** | ||
| 559 | * Get the field name for node's child at the given index, where zero represents | ||
| 560 | * the first child. Returns NULL, if no field is found. | ||
| 561 | */ | ||
| 562 | const char *ts_node_field_name_for_child(TSNode self, uint32_t child_index); | ||
| 563 | |||
| 564 | /** | ||
| 565 | * Get the node's number of children. | ||
| 566 | */ | ||
| 567 | uint32_t ts_node_child_count(TSNode self); | ||
| 568 | |||
| 569 | /** | ||
| 570 | * Get the node's *named* child at the given index. | ||
| 571 | * | ||
| 572 | * See also [`ts_node_is_named`]. | ||
| 573 | */ | ||
| 574 | TSNode ts_node_named_child(TSNode self, uint32_t child_index); | ||
| 575 | |||
| 576 | /** | ||
| 577 | * Get the node's number of *named* children. | ||
| 578 | * | ||
| 579 | * See also [`ts_node_is_named`]. | ||
| 580 | */ | ||
| 581 | uint32_t ts_node_named_child_count(TSNode self); | ||
| 582 | |||
| 583 | /** | ||
| 584 | * Get the node's child with the given field name. | ||
| 585 | */ | ||
| 586 | TSNode ts_node_child_by_field_name( | ||
| 587 | TSNode self, | ||
| 588 | const char *name, | ||
| 589 | uint32_t name_length | ||
| 590 | ); | ||
| 591 | |||
| 592 | /** | ||
| 593 | * Get the node's child with the given numerical field id. | ||
| 594 | * | ||
| 595 | * You can convert a field name to an id using the | ||
| 596 | * [`ts_language_field_id_for_name`] function. | ||
| 597 | */ | ||
| 598 | TSNode ts_node_child_by_field_id(TSNode self, TSFieldId field_id); | ||
| 599 | |||
| 600 | /** | ||
| 601 | * Get the node's next / previous sibling. | ||
| 602 | */ | ||
| 603 | TSNode ts_node_next_sibling(TSNode self); | ||
| 604 | TSNode ts_node_prev_sibling(TSNode self); | ||
| 605 | |||
| 606 | /** | ||
| 607 | * Get the node's next / previous *named* sibling. | ||
| 608 | */ | ||
| 609 | TSNode ts_node_next_named_sibling(TSNode self); | ||
| 610 | TSNode ts_node_prev_named_sibling(TSNode self); | ||
| 611 | |||
| 612 | /** | ||
| 613 | * Get the node's first child that extends beyond the given byte offset. | ||
| 614 | */ | ||
| 615 | TSNode ts_node_first_child_for_byte(TSNode self, uint32_t byte); | ||
| 616 | |||
| 617 | /** | ||
| 618 | * Get the node's first named child that extends beyond the given byte offset. | ||
| 619 | */ | ||
| 620 | TSNode ts_node_first_named_child_for_byte(TSNode self, uint32_t byte); | ||
| 621 | |||
| 622 | /** | ||
| 623 | * Get the node's number of descendants, including one for the node itself. | ||
| 624 | */ | ||
| 625 | uint32_t ts_node_descendant_count(TSNode self); | ||
| 626 | |||
| 627 | /** | ||
| 628 | * Get the smallest node within this node that spans the given range of bytes | ||
| 629 | * or (row, column) positions. | ||
| 630 | */ | ||
| 631 | TSNode ts_node_descendant_for_byte_range(TSNode self, uint32_t start, uint32_t end); | ||
| 632 | TSNode ts_node_descendant_for_point_range(TSNode self, TSPoint start, TSPoint end); | ||
| 633 | |||
| 634 | /** | ||
| 635 | * Get the smallest named node within this node that spans the given range of | ||
| 636 | * bytes or (row, column) positions. | ||
| 637 | */ | ||
| 638 | TSNode ts_node_named_descendant_for_byte_range(TSNode self, uint32_t start, uint32_t end); | ||
| 639 | TSNode ts_node_named_descendant_for_point_range(TSNode self, TSPoint start, TSPoint end); | ||
| 640 | |||
| 641 | /** | ||
| 642 | * Edit the node to keep it in-sync with source code that has been edited. | ||
| 643 | * | ||
| 644 | * This function is only rarely needed. When you edit a syntax tree with the | ||
| 645 | * [`ts_tree_edit`] function, all of the nodes that you retrieve from the tree | ||
| 646 | * afterward will already reflect the edit. You only need to use [`ts_node_edit`] | ||
| 647 | * when you have a [`TSNode`] instance that you want to keep and continue to use | ||
| 648 | * after an edit. | ||
| 649 | */ | ||
| 650 | void ts_node_edit(TSNode *self, const TSInputEdit *edit); | ||
| 651 | |||
| 652 | /** | ||
| 653 | * Check if two nodes are identical. | ||
| 654 | */ | ||
| 655 | bool ts_node_eq(TSNode self, TSNode other); | ||
| 656 | |||
| 657 | /************************/ | ||
| 658 | /* Section - TreeCursor */ | ||
| 659 | /************************/ | ||
| 660 | |||
| 661 | /** | ||
| 662 | * Create a new tree cursor starting from the given node. | ||
| 663 | * | ||
| 664 | * A tree cursor allows you to walk a syntax tree more efficiently than is | ||
| 665 | * possible using the [`TSNode`] functions. It is a mutable object that is always | ||
| 666 | * on a certain syntax node, and can be moved imperatively to different nodes. | ||
| 667 | */ | ||
| 668 | TSTreeCursor ts_tree_cursor_new(TSNode node); | ||
| 669 | |||
| 670 | /** | ||
| 671 | * Delete a tree cursor, freeing all of the memory that it used. | ||
| 672 | */ | ||
| 673 | void ts_tree_cursor_delete(TSTreeCursor *self); | ||
| 674 | |||
| 675 | /** | ||
| 676 | * Re-initialize a tree cursor to start at a different node. | ||
| 677 | */ | ||
| 678 | void ts_tree_cursor_reset(TSTreeCursor *self, TSNode node); | ||
| 679 | |||
| 680 | /** | ||
| 681 | * Re-initialize a tree cursor to the same position as another cursor. | ||
| 682 | * | ||
| 683 | * Unlike [`ts_tree_cursor_reset`], this will not lose parent information and | ||
| 684 | * allows reusing already created cursors. | ||
| 685 | */ | ||
| 686 | void ts_tree_cursor_reset_to(TSTreeCursor *dst, const TSTreeCursor *src); | ||
| 687 | |||
| 688 | /** | ||
| 689 | * Get the tree cursor's current node. | ||
| 690 | */ | ||
| 691 | TSNode ts_tree_cursor_current_node(const TSTreeCursor *self); | ||
| 692 | |||
| 693 | /** | ||
| 694 | * Get the field name of the tree cursor's current node. | ||
| 695 | * | ||
| 696 | * This returns `NULL` if the current node doesn't have a field. | ||
| 697 | * See also [`ts_node_child_by_field_name`]. | ||
| 698 | */ | ||
| 699 | const char *ts_tree_cursor_current_field_name(const TSTreeCursor *self); | ||
| 700 | |||
| 701 | /** | ||
| 702 | * Get the field id of the tree cursor's current node. | ||
| 703 | * | ||
| 704 | * This returns zero if the current node doesn't have a field. | ||
| 705 | * See also [`ts_node_child_by_field_id`], [`ts_language_field_id_for_name`]. | ||
| 706 | */ | ||
| 707 | TSFieldId ts_tree_cursor_current_field_id(const TSTreeCursor *self); | ||
| 708 | |||
| 709 | /** | ||
| 710 | * Move the cursor to the parent of its current node. | ||
| 711 | * | ||
| 712 | * This returns `true` if the cursor successfully moved, and returns `false` | ||
| 713 | * if there was no parent node (the cursor was already on the root node). | ||
| 714 | */ | ||
| 715 | bool ts_tree_cursor_goto_parent(TSTreeCursor *self); | ||
| 716 | |||
| 717 | /** | ||
| 718 | * Move the cursor to the next sibling of its current node. | ||
| 719 | * | ||
| 720 | * This returns `true` if the cursor successfully moved, and returns `false` | ||
| 721 | * if there was no next sibling node. | ||
| 722 | */ | ||
| 723 | bool ts_tree_cursor_goto_next_sibling(TSTreeCursor *self); | ||
| 724 | |||
| 725 | /** | ||
| 726 | * Move the cursor to the previous sibling of its current node. | ||
| 727 | * | ||
| 728 | * This returns `true` if the cursor successfully moved, and returns `false` if | ||
| 729 | * there was no previous sibling node. | ||
| 730 | * | ||
| 731 | * Note, that this function may be slower than | ||
| 732 | * [`ts_tree_cursor_goto_next_sibling`] due to how node positions are stored. In | ||
| 733 | * the worst case, this will need to iterate through all the children upto the | ||
| 734 | * previous sibling node to recalculate its position. | ||
| 735 | */ | ||
| 736 | bool ts_tree_cursor_goto_previous_sibling(TSTreeCursor *self); | ||
| 737 | |||
| 738 | /** | ||
| 739 | * Move the cursor to the first child of its current node. | ||
| 740 | * | ||
| 741 | * This returns `true` if the cursor successfully moved, and returns `false` | ||
| 742 | * if there were no children. | ||
| 743 | */ | ||
| 744 | bool ts_tree_cursor_goto_first_child(TSTreeCursor *self); | ||
| 745 | |||
| 746 | /** | ||
| 747 | * Move the cursor to the last child of its current node. | ||
| 748 | * | ||
| 749 | * This returns `true` if the cursor successfully moved, and returns `false` if | ||
| 750 | * there were no children. | ||
| 751 | * | ||
| 752 | * Note that this function may be slower than [`ts_tree_cursor_goto_first_child`] | ||
| 753 | * because it needs to iterate through all the children to compute the child's | ||
| 754 | * position. | ||
| 755 | */ | ||
| 756 | bool ts_tree_cursor_goto_last_child(TSTreeCursor *self); | ||
| 757 | |||
| 758 | /** | ||
| 759 | * Move the cursor to the node that is the nth descendant of | ||
| 760 | * the original node that the cursor was constructed with, where | ||
| 761 | * zero represents the original node itself. | ||
| 762 | */ | ||
| 763 | void ts_tree_cursor_goto_descendant(TSTreeCursor *self, uint32_t goal_descendant_index); | ||
| 764 | |||
| 765 | /** | ||
| 766 | * Get the index of the cursor's current node out of all of the | ||
| 767 | * descendants of the original node that the cursor was constructed with. | ||
| 768 | */ | ||
| 769 | uint32_t ts_tree_cursor_current_descendant_index(const TSTreeCursor *self); | ||
| 770 | |||
| 771 | /** | ||
| 772 | * Get the depth of the cursor's current node relative to the original | ||
| 773 | * node that the cursor was constructed with. | ||
| 774 | */ | ||
| 775 | uint32_t ts_tree_cursor_current_depth(const TSTreeCursor *self); | ||
| 776 | |||
| 777 | /** | ||
| 778 | * Move the cursor to the first child of its current node that extends beyond | ||
| 779 | * the given byte offset or point. | ||
| 780 | * | ||
| 781 | * This returns the index of the child node if one was found, and returns -1 | ||
| 782 | * if no such child was found. | ||
| 783 | */ | ||
| 784 | int64_t ts_tree_cursor_goto_first_child_for_byte(TSTreeCursor *self, uint32_t goal_byte); | ||
| 785 | int64_t ts_tree_cursor_goto_first_child_for_point(TSTreeCursor *self, TSPoint goal_point); | ||
| 786 | |||
| 787 | TSTreeCursor ts_tree_cursor_copy(const TSTreeCursor *cursor); | ||
| 788 | |||
| 789 | /*******************/ | ||
| 790 | /* Section - Query */ | ||
| 791 | /*******************/ | ||
| 792 | |||
| 793 | /** | ||
| 794 | * Create a new query from a string containing one or more S-expression | ||
| 795 | * patterns. The query is associated with a particular language, and can | ||
| 796 | * only be run on syntax nodes parsed with that language. | ||
| 797 | * | ||
| 798 | * If all of the given patterns are valid, this returns a [`TSQuery`]. | ||
| 799 | * If a pattern is invalid, this returns `NULL`, and provides two pieces | ||
| 800 | * of information about the problem: | ||
| 801 | * 1. The byte offset of the error is written to the `error_offset` parameter. | ||
| 802 | * 2. The type of error is written to the `error_type` parameter. | ||
| 803 | */ | ||
| 804 | TSQuery *ts_query_new( | ||
| 805 | const TSLanguage *language, | ||
| 806 | const char *source, | ||
| 807 | uint32_t source_len, | ||
| 808 | uint32_t *error_offset, | ||
| 809 | TSQueryError *error_type | ||
| 810 | ); | ||
| 811 | |||
| 812 | /** | ||
| 813 | * Delete a query, freeing all of the memory that it used. | ||
| 814 | */ | ||
| 815 | void ts_query_delete(TSQuery *self); | ||
| 816 | |||
| 817 | /** | ||
| 818 | * Get the number of patterns, captures, or string literals in the query. | ||
| 819 | */ | ||
| 820 | uint32_t ts_query_pattern_count(const TSQuery *self); | ||
| 821 | uint32_t ts_query_capture_count(const TSQuery *self); | ||
| 822 | uint32_t ts_query_string_count(const TSQuery *self); | ||
| 823 | |||
| 824 | /** | ||
| 825 | * Get the byte offset where the given pattern starts in the query's source. | ||
| 826 | * | ||
| 827 | * This can be useful when combining queries by concatenating their source | ||
| 828 | * code strings. | ||
| 829 | */ | ||
| 830 | uint32_t ts_query_start_byte_for_pattern(const TSQuery *self, uint32_t pattern_index); | ||
| 831 | |||
| 832 | /** | ||
| 833 | * Get all of the predicates for the given pattern in the query. | ||
| 834 | * | ||
| 835 | * The predicates are represented as a single array of steps. There are three | ||
| 836 | * types of steps in this array, which correspond to the three legal values for | ||
| 837 | * the `type` field: | ||
| 838 | * - `TSQueryPredicateStepTypeCapture` - Steps with this type represent names | ||
| 839 | * of captures. Their `value_id` can be used with the | ||
| 840 | * [`ts_query_capture_name_for_id`] function to obtain the name of the capture. | ||
| 841 | * - `TSQueryPredicateStepTypeString` - Steps with this type represent literal | ||
| 842 | * strings. Their `value_id` can be used with the | ||
| 843 | * [`ts_query_string_value_for_id`] function to obtain their string value. | ||
| 844 | * - `TSQueryPredicateStepTypeDone` - Steps with this type are *sentinels* | ||
| 845 | * that represent the end of an individual predicate. If a pattern has two | ||
| 846 | * predicates, then there will be two steps with this `type` in the array. | ||
| 847 | */ | ||
| 848 | const TSQueryPredicateStep *ts_query_predicates_for_pattern( | ||
| 849 | const TSQuery *self, | ||
| 850 | uint32_t pattern_index, | ||
| 851 | uint32_t *step_count | ||
| 852 | ); | ||
| 853 | |||
| 854 | /* | ||
| 855 | * Check if the given pattern in the query has a single root node. | ||
| 856 | */ | ||
| 857 | bool ts_query_is_pattern_rooted(const TSQuery *self, uint32_t pattern_index); | ||
| 858 | |||
| 859 | /* | ||
| 860 | * Check if the given pattern in the query is 'non local'. | ||
| 861 | * | ||
| 862 | * A non-local pattern has multiple root nodes and can match within a | ||
| 863 | * repeating sequence of nodes, as specified by the grammar. Non-local | ||
| 864 | * patterns disable certain optimizations that would otherwise be possible | ||
| 865 | * when executing a query on a specific range of a syntax tree. | ||
| 866 | */ | ||
| 867 | bool ts_query_is_pattern_non_local(const TSQuery *self, uint32_t pattern_index); | ||
| 868 | |||
| 869 | /* | ||
| 870 | * Check if a given pattern is guaranteed to match once a given step is reached. | ||
| 871 | * The step is specified by its byte offset in the query's source code. | ||
| 872 | */ | ||
| 873 | bool ts_query_is_pattern_guaranteed_at_step(const TSQuery *self, uint32_t byte_offset); | ||
| 874 | |||
| 875 | /** | ||
| 876 | * Get the name and length of one of the query's captures, or one of the | ||
| 877 | * query's string literals. Each capture and string is associated with a | ||
| 878 | * numeric id based on the order that it appeared in the query's source. | ||
| 879 | */ | ||
| 880 | const char *ts_query_capture_name_for_id( | ||
| 881 | const TSQuery *self, | ||
| 882 | uint32_t index, | ||
| 883 | uint32_t *length | ||
| 884 | ); | ||
| 885 | |||
| 886 | /** | ||
| 887 | * Get the quantifier of the query's captures. Each capture is * associated | ||
| 888 | * with a numeric id based on the order that it appeared in the query's source. | ||
| 889 | */ | ||
| 890 | TSQuantifier ts_query_capture_quantifier_for_id( | ||
| 891 | const TSQuery *self, | ||
| 892 | uint32_t pattern_index, | ||
| 893 | uint32_t capture_index | ||
| 894 | ); | ||
| 895 | |||
| 896 | const char *ts_query_string_value_for_id( | ||
| 897 | const TSQuery *self, | ||
| 898 | uint32_t index, | ||
| 899 | uint32_t *length | ||
| 900 | ); | ||
| 901 | |||
| 902 | /** | ||
| 903 | * Disable a certain capture within a query. | ||
| 904 | * | ||
| 905 | * This prevents the capture from being returned in matches, and also avoids | ||
| 906 | * any resource usage associated with recording the capture. Currently, there | ||
| 907 | * is no way to undo this. | ||
| 908 | */ | ||
| 909 | void ts_query_disable_capture(TSQuery *self, const char *name, uint32_t length); | ||
| 910 | |||
| 911 | /** | ||
| 912 | * Disable a certain pattern within a query. | ||
| 913 | * | ||
| 914 | * This prevents the pattern from matching and removes most of the overhead | ||
| 915 | * associated with the pattern. Currently, there is no way to undo this. | ||
| 916 | */ | ||
| 917 | void ts_query_disable_pattern(TSQuery *self, uint32_t pattern_index); | ||
| 918 | |||
| 919 | /** | ||
| 920 | * Create a new cursor for executing a given query. | ||
| 921 | * | ||
| 922 | * The cursor stores the state that is needed to iteratively search | ||
| 923 | * for matches. To use the query cursor, first call [`ts_query_cursor_exec`] | ||
| 924 | * to start running a given query on a given syntax node. Then, there are | ||
| 925 | * two options for consuming the results of the query: | ||
| 926 | * 1. Repeatedly call [`ts_query_cursor_next_match`] to iterate over all of the | ||
| 927 | * *matches* in the order that they were found. Each match contains the | ||
| 928 | * index of the pattern that matched, and an array of captures. Because | ||
| 929 | * multiple patterns can match the same set of nodes, one match may contain | ||
| 930 | * captures that appear *before* some of the captures from a previous match. | ||
| 931 | * 2. Repeatedly call [`ts_query_cursor_next_capture`] to iterate over all of the | ||
| 932 | * individual *captures* in the order that they appear. This is useful if | ||
| 933 | * don't care about which pattern matched, and just want a single ordered | ||
| 934 | * sequence of captures. | ||
| 935 | * | ||
| 936 | * If you don't care about consuming all of the results, you can stop calling | ||
| 937 | * [`ts_query_cursor_next_match`] or [`ts_query_cursor_next_capture`] at any point. | ||
| 938 | * You can then start executing another query on another node by calling | ||
| 939 | * [`ts_query_cursor_exec`] again. | ||
| 940 | */ | ||
| 941 | TSQueryCursor *ts_query_cursor_new(void); | ||
| 942 | |||
| 943 | /** | ||
| 944 | * Delete a query cursor, freeing all of the memory that it used. | ||
| 945 | */ | ||
| 946 | void ts_query_cursor_delete(TSQueryCursor *self); | ||
| 947 | |||
| 948 | /** | ||
| 949 | * Start running a given query on a given node. | ||
| 950 | */ | ||
| 951 | void ts_query_cursor_exec(TSQueryCursor *self, const TSQuery *query, TSNode node); | ||
| 952 | |||
| 953 | /** | ||
| 954 | * Manage the maximum number of in-progress matches allowed by this query | ||
| 955 | * cursor. | ||
| 956 | * | ||
| 957 | * Query cursors have an optional maximum capacity for storing lists of | ||
| 958 | * in-progress captures. If this capacity is exceeded, then the | ||
| 959 | * earliest-starting match will silently be dropped to make room for further | ||
| 960 | * matches. This maximum capacity is optional — by default, query cursors allow | ||
| 961 | * any number of pending matches, dynamically allocating new space for them as | ||
| 962 | * needed as the query is executed. | ||
| 963 | */ | ||
| 964 | bool ts_query_cursor_did_exceed_match_limit(const TSQueryCursor *self); | ||
| 965 | uint32_t ts_query_cursor_match_limit(const TSQueryCursor *self); | ||
| 966 | void ts_query_cursor_set_match_limit(TSQueryCursor *self, uint32_t limit); | ||
| 967 | |||
| 968 | /** | ||
| 969 | * Set the range of bytes or (row, column) positions in which the query | ||
| 970 | * will be executed. | ||
| 971 | */ | ||
| 972 | void ts_query_cursor_set_byte_range(TSQueryCursor *self, uint32_t start_byte, uint32_t end_byte); | ||
| 973 | void ts_query_cursor_set_point_range(TSQueryCursor *self, TSPoint start_point, TSPoint end_point); | ||
| 974 | |||
| 975 | /** | ||
| 976 | * Advance to the next match of the currently running query. | ||
| 977 | * | ||
| 978 | * If there is a match, write it to `*match` and return `true`. | ||
| 979 | * Otherwise, return `false`. | ||
| 980 | */ | ||
| 981 | bool ts_query_cursor_next_match(TSQueryCursor *self, TSQueryMatch *match); | ||
| 982 | void ts_query_cursor_remove_match(TSQueryCursor *self, uint32_t match_id); | ||
| 983 | |||
| 984 | /** | ||
| 985 | * Advance to the next capture of the currently running query. | ||
| 986 | * | ||
| 987 | * If there is a capture, write its match to `*match` and its index within | ||
| 988 | * the matche's capture list to `*capture_index`. Otherwise, return `false`. | ||
| 989 | */ | ||
| 990 | bool ts_query_cursor_next_capture( | ||
| 991 | TSQueryCursor *self, | ||
| 992 | TSQueryMatch *match, | ||
| 993 | uint32_t *capture_index | ||
| 994 | ); | ||
| 995 | |||
| 996 | /** | ||
| 997 | * Set the maximum start depth for a query cursor. | ||
| 998 | * | ||
| 999 | * This prevents cursors from exploring children nodes at a certain depth. | ||
| 1000 | * Note if a pattern includes many children, then they will still be checked. | ||
| 1001 | * | ||
| 1002 | * The zero max start depth value can be used as a special behavior and | ||
| 1003 | * it helps to destructure a subtree by staying on a node and using captures | ||
| 1004 | * for interested parts. Note that the zero max start depth only limit a search | ||
| 1005 | * depth for a pattern's root node but other nodes that are parts of the pattern | ||
| 1006 | * may be searched at any depth what defined by the pattern structure. | ||
| 1007 | * | ||
| 1008 | * Set to `UINT32_MAX` to remove the maximum start depth. | ||
| 1009 | */ | ||
| 1010 | void ts_query_cursor_set_max_start_depth(TSQueryCursor *self, uint32_t max_start_depth); | ||
| 1011 | |||
| 1012 | /**********************/ | ||
| 1013 | /* Section - Language */ | ||
| 1014 | /**********************/ | ||
| 1015 | |||
| 1016 | /** | ||
| 1017 | * Get the number of distinct node types in the language. | ||
| 1018 | */ | ||
| 1019 | uint32_t ts_language_symbol_count(const TSLanguage *self); | ||
| 1020 | |||
| 1021 | /** | ||
| 1022 | * Get the number of valid states in this language. | ||
| 1023 | */ | ||
| 1024 | uint32_t ts_language_state_count(const TSLanguage *self); | ||
| 1025 | |||
| 1026 | /** | ||
| 1027 | * Get a node type string for the given numerical id. | ||
| 1028 | */ | ||
| 1029 | const char *ts_language_symbol_name(const TSLanguage *self, TSSymbol symbol); | ||
| 1030 | |||
| 1031 | /** | ||
| 1032 | * Get the numerical id for the given node type string. | ||
| 1033 | */ | ||
| 1034 | TSSymbol ts_language_symbol_for_name( | ||
| 1035 | const TSLanguage *self, | ||
| 1036 | const char *string, | ||
| 1037 | uint32_t length, | ||
| 1038 | bool is_named | ||
| 1039 | ); | ||
| 1040 | |||
| 1041 | /** | ||
| 1042 | * Get the number of distinct field names in the language. | ||
| 1043 | */ | ||
| 1044 | uint32_t ts_language_field_count(const TSLanguage *self); | ||
| 1045 | |||
| 1046 | /** | ||
| 1047 | * Get the field name string for the given numerical id. | ||
| 1048 | */ | ||
| 1049 | const char *ts_language_field_name_for_id(const TSLanguage *self, TSFieldId id); | ||
| 1050 | |||
| 1051 | /** | ||
| 1052 | * Get the numerical id for the given field name string. | ||
| 1053 | */ | ||
| 1054 | TSFieldId ts_language_field_id_for_name(const TSLanguage *self, const char *name, uint32_t name_length); | ||
| 1055 | |||
| 1056 | /** | ||
| 1057 | * Check whether the given node type id belongs to named nodes, anonymous nodes, | ||
| 1058 | * or a hidden nodes. | ||
| 1059 | * | ||
| 1060 | * See also [`ts_node_is_named`]. Hidden nodes are never returned from the API. | ||
| 1061 | */ | ||
| 1062 | TSSymbolType ts_language_symbol_type(const TSLanguage *self, TSSymbol symbol); | ||
| 1063 | |||
| 1064 | /** | ||
| 1065 | * Get the ABI version number for this language. This version number is used | ||
| 1066 | * to ensure that languages were generated by a compatible version of | ||
| 1067 | * Tree-sitter. | ||
| 1068 | * | ||
| 1069 | * See also [`ts_parser_set_language`]. | ||
| 1070 | */ | ||
| 1071 | uint32_t ts_language_version(const TSLanguage *self); | ||
| 1072 | |||
| 1073 | /** | ||
| 1074 | * Get the next parse state. Combine this with lookahead iterators to generate | ||
| 1075 | * completion suggestions or valid symbols in error nodes. Use | ||
| 1076 | * [`ts_node_grammar_symbol`] for valid symbols. | ||
| 1077 | */ | ||
| 1078 | TSStateId ts_language_next_state(const TSLanguage *self, TSStateId state, TSSymbol symbol); | ||
| 1079 | |||
| 1080 | /********************************/ | ||
| 1081 | /* Section - Lookahead Iterator */ | ||
| 1082 | /********************************/ | ||
| 1083 | |||
| 1084 | /** | ||
| 1085 | * Create a new lookahead iterator for the given language and parse state. | ||
| 1086 | * | ||
| 1087 | * This returns `NULL` if state is invalid for the language. | ||
| 1088 | * | ||
| 1089 | * Repeatedly using [`ts_lookahead_iterator_next`] and | ||
| 1090 | * [`ts_lookahead_iterator_current_symbol`] will generate valid symbols in the | ||
| 1091 | * given parse state. Newly created lookahead iterators will contain the `ERROR` | ||
| 1092 | * symbol. | ||
| 1093 | * | ||
| 1094 | * Lookahead iterators can be useful to generate suggestions and improve syntax | ||
| 1095 | * error diagnostics. To get symbols valid in an ERROR node, use the lookahead | ||
| 1096 | * iterator on its first leaf node state. For `MISSING` nodes, a lookahead | ||
| 1097 | * iterator created on the previous non-extra leaf node may be appropriate. | ||
| 1098 | */ | ||
| 1099 | TSLookaheadIterator *ts_lookahead_iterator_new(const TSLanguage *self, TSStateId state); | ||
| 1100 | |||
| 1101 | /** | ||
| 1102 | * Delete a lookahead iterator freeing all the memory used. | ||
| 1103 | */ | ||
| 1104 | void ts_lookahead_iterator_delete(TSLookaheadIterator *self); | ||
| 1105 | |||
| 1106 | /** | ||
| 1107 | * Reset the lookahead iterator to another state. | ||
| 1108 | * | ||
| 1109 | * This returns `true` if the iterator was reset to the given state and `false` | ||
| 1110 | * otherwise. | ||
| 1111 | */ | ||
| 1112 | bool ts_lookahead_iterator_reset_state(TSLookaheadIterator *self, TSStateId state); | ||
| 1113 | |||
| 1114 | /** | ||
| 1115 | * Reset the lookahead iterator. | ||
| 1116 | * | ||
| 1117 | * This returns `true` if the language was set successfully and `false` | ||
| 1118 | * otherwise. | ||
| 1119 | */ | ||
| 1120 | bool ts_lookahead_iterator_reset(TSLookaheadIterator *self, const TSLanguage *language, TSStateId state); | ||
| 1121 | |||
| 1122 | /** | ||
| 1123 | * Get the current language of the lookahead iterator. | ||
| 1124 | */ | ||
| 1125 | const TSLanguage *ts_lookahead_iterator_language(const TSLookaheadIterator *self); | ||
| 1126 | |||
| 1127 | /** | ||
| 1128 | * Advance the lookahead iterator to the next symbol. | ||
| 1129 | * | ||
| 1130 | * This returns `true` if there is a new symbol and `false` otherwise. | ||
| 1131 | */ | ||
| 1132 | bool ts_lookahead_iterator_next(TSLookaheadIterator *self); | ||
| 1133 | |||
| 1134 | /** | ||
| 1135 | * Get the current symbol of the lookahead iterator; | ||
| 1136 | */ | ||
| 1137 | TSSymbol ts_lookahead_iterator_current_symbol(const TSLookaheadIterator *self); | ||
| 1138 | |||
| 1139 | /** | ||
| 1140 | * Get the current symbol type of the lookahead iterator as a null terminated | ||
| 1141 | * string. | ||
| 1142 | */ | ||
| 1143 | const char *ts_lookahead_iterator_current_symbol_name(const TSLookaheadIterator *self); | ||
| 1144 | |||
| 1145 | /**********************************/ | ||
| 1146 | /* Section - Global Configuration */ | ||
| 1147 | /**********************************/ | ||
| 1148 | |||
| 1149 | /** | ||
| 1150 | * Set the allocation functions used by the library. | ||
| 1151 | * | ||
| 1152 | * By default, Tree-sitter uses the standard libc allocation functions, | ||
| 1153 | * but aborts the process when an allocation fails. This function lets | ||
| 1154 | * you supply alternative allocation functions at runtime. | ||
| 1155 | * | ||
| 1156 | * If you pass `NULL` for any parameter, Tree-sitter will switch back to | ||
| 1157 | * its default implementation of that function. | ||
| 1158 | * | ||
| 1159 | * If you call this function after the library has already been used, then | ||
| 1160 | * you must ensure that either: | ||
| 1161 | * 1. All the existing objects have been freed. | ||
| 1162 | * 2. The new allocator shares its state with the old one, so it is capable | ||
| 1163 | * of freeing memory that was allocated by the old allocator. | ||
| 1164 | */ | ||
| 1165 | void ts_set_allocator( | ||
| 1166 | void *(*new_malloc)(size_t), | ||
| 1167 | void *(*new_calloc)(size_t, size_t), | ||
| 1168 | void *(*new_realloc)(void *, size_t), | ||
| 1169 | void (*new_free)(void *) | ||
| 1170 | ); | ||
| 1171 | |||
| 1172 | #ifdef __cplusplus | ||
| 1173 | } | ||
| 1174 | #endif | ||
| 1175 | |||
| 1176 | #if defined(__GNUC__) || defined(__clang__) | ||
| 1177 | #pragma GCC visibility pop | ||
| 1178 | #endif | ||
| 1179 | |||
| 1180 | #endif // TREE_SITTER_API_H_ | ||
