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Add ts_document_invalidate, for forcing a full re-parse

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This commit is contained in:
Max Brunsfeld 2015-10-18 13:05:40 -07:00
parent 1983bcfb60
commit 0955f660d0
3 changed files with 24 additions and 9 deletions
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3
include/tree_sitter/runtime.h
View file

@ -73,8 +73,9 @@ void ts_document_set_input(TSDocument *, TSInput);
void ts_document_set_input_string(TSDocument *, const char *);
TSDebugger ts_document_debugger(const TSDocument *);
void ts_document_set_debugger(TSDocument *, TSDebugger);
void ts_document_parse(TSDocument *);
void ts_document_edit(TSDocument *, TSInputEdit);
void ts_document_parse(TSDocument *);
void ts_document_invalidate(TSDocument *);
TSNode ts_document_root_node(const TSDocument *);
size_t ts_document_parse_count(const TSDocument *);

28
src/runtime/document.c
View file

@ -24,6 +24,7 @@ const TSLanguage *ts_document_language(TSDocument *self) {
}
void ts_document_set_language(TSDocument *self, const TSLanguage *language) {
ts_document_invalidate(self);
self->parser.language = language;
self->tree = NULL;
}
@ -45,6 +46,7 @@ void ts_document_set_input(TSDocument *self, TSInput input) {
}
void ts_document_set_input_string(TSDocument *self, const char *text) {
ts_document_invalidate(self);
ts_document_set_input(self, ts_string_input_make(text));
}
@ -62,14 +64,24 @@ void ts_document_edit(TSDocument *self, TSInputEdit edit) {
}
void ts_document_parse(TSDocument *self) {
if (self->input.read_fn && self->parser.language) {
TSTree *tree = ts_parser_parse(&self->parser, self->input, self->tree);
if (self->tree)
ts_tree_release(self->tree);
self->tree = tree;
ts_tree_retain(tree);
self->parse_count++;
}
if (!self->input.read_fn || !self->parser.language)
return;
TSTree *reusable_tree = self->valid ? self->tree : NULL;
if (reusable_tree && !reusable_tree->options.has_changes)
return;
TSTree *tree = ts_parser_parse(&self->parser, self->input, reusable_tree);
ts_tree_retain(tree);
if (self->tree)
ts_tree_release(self->tree);
self->tree = tree;
self->parse_count++;
self->valid = true;
}
void ts_document_invalidate(TSDocument *self) {
self->valid = false;
}
TSNode ts_document_root_node(const TSDocument *self) {

2
src/runtime/document.h
View file

@ -4,12 +4,14 @@
#include "tree_sitter/parser.h"
#include "runtime/parser.h"
#include "runtime/tree.h"
#include <stdbool.h>
struct TSDocument {
TSParser parser;
TSInput input;
TSTree *tree;
size_t parse_count;
bool valid;
};
#endif