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Add ability to edit multiple times between parses

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This commit is contained in:
Max Brunsfeld 2015-09-18 23:20:06 -07:00
parent 6254f45c1b
commit f37f73f92f
13 changed files with 135 additions and 119 deletions
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25
src/runtime/parser.c
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@ -255,22 +255,21 @@ static bool ts_parser__handle_error(TSParser *parser, int head) {
}
}
static void ts_parser__start(TSParser *parser, TSInput input) {
parser->lexer.input = input;
ts_lexer_reset(&parser->lexer, ts_length_zero());
parser->previous_tree = ts_stack_top_tree(parser->stack, 0);
if (parser->previous_tree) {
static void ts_parser__start(TSParser *parser, TSInput input,
TSTree *previous_tree) {
if (previous_tree) {
DEBUG("parse_after_edit");
ts_tree_retain(parser->previous_tree);
} else {
DEBUG("new_parse");
}
parser->reusable_subtree = parser->previous_tree;
parser->lexer.input = input;
ts_lexer_reset(&parser->lexer, ts_length_zero());
ts_stack_clear(parser->stack);
parser->reusable_subtree = previous_tree;
parser->reusable_subtree_pos = 0;
parser->lookahead = NULL;
parser->is_verifying = false;
ts_stack_clear(parser->stack);
}
static TSTree *ts_parser__finish(TSParser *parser) {
@ -282,7 +281,6 @@ static TSTree *ts_parser__finish(TSParser *parser) {
TSTree *root = trees[extra_count];
ts_tree_prepend_children(root, extra_count, trees);
ts_stack_push(parser->stack, 0, 0, root);
return root;
}
@ -389,7 +387,6 @@ TSParser ts_parser_make() {
NULL, ts_parser__select_tree,
}),
.lookahead = NULL,
.is_verifying = false,
};
}
@ -407,8 +404,8 @@ void ts_parser_set_debugger(TSParser *parser, TSDebugger debugger) {
parser->lexer.debugger = debugger;
}
TSTree *ts_parser_parse(TSParser *parser, TSInput input) {
ts_parser__start(parser, input);
TSTree *ts_parser_parse(TSParser *parser, TSInput input, TSTree *previous_tree) {
ts_parser__start(parser, input, previous_tree);
for (;;) {
ts_parser__get_next_lookahead(parser, false);