traxys/tree-sitter
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Rework AST access API: reduce heap allocation

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This commit is contained in:
Max Brunsfeld 2015-07-31 15:47:48 -07:00
parent feb46302f3
commit 54e40b8146
16 changed files with 288 additions and 273 deletions
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30
src/runtime/document.c
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@ -1,13 +1,9 @@
#include "tree_sitter/parser.h"
#include "runtime/node.h"
#include "runtime/length.h"
#include "runtime/parser.h"
#include "runtime/string_input.h"
struct TSDocument {
TSParser parser;
TSInput input;
TSNode *node;
};
#include "runtime/document.h"
TSDocument *ts_document_make() {
TSDocument *document = calloc(sizeof(TSDocument), 1);
@ -19,19 +15,18 @@ void ts_document_free(TSDocument *document) {
ts_parser_destroy(&document->parser);
if (document->input.release_fn)
document->input.release_fn(document->input.data);
if (document->node)
ts_node_release(document->node);
if (document->tree)
ts_tree_release(document->tree);
free(document);
}
static void reparse(TSDocument *document, TSInputEdit *edit) {
if (document->input.read_fn && document->parser.language) {
const TSTree *tree =
ts_parser_parse(&document->parser, document->input, edit);
if (document->node)
ts_node_release(document->node);
document->node =
ts_node_make_root(tree, document->parser.language->symbol_names);
TSTree *tree = ts_parser_parse(&document->parser, document->input, edit);
if (document->tree)
ts_tree_release(document->tree);
document->tree = tree;
ts_tree_retain(tree);
}
}
@ -66,6 +61,9 @@ void ts_document_set_input_string(TSDocument *document, const char *text) {
ts_document_set_input(document, ts_string_input_make(text));
}
TSNode *ts_document_root_node(const TSDocument *document) {
return document->node;
TSNode ts_document_root_node(const TSDocument *document) {
if (document->tree)
return ts_node_make(document->tree, document->tree->padding);
else
return ts_node_null();
}