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Check that language is present in both parse() and resume()

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This commit is contained in:
Max Brunsfeld 2018-05-23 15:41:16 -07:00
parent 986ceefc81
commit 69d8c6f5e6
2 changed files with 10 additions and 0 deletions
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1
src/runtime/parser.c
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@ -1440,6 +1440,7 @@ TSTree *ts_parser_resume(TSParser *self) {
}
TSTree *ts_parser_parse(TSParser *self, const TSTree *old_tree, TSInput input) {
if (!self->language) return NULL;
ts_parser__start(self, input, old_tree ? old_tree->root : NULL);
return ts_parser_resume(self);
}

9
test/runtime/parser_test.cc
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@ -568,6 +568,15 @@ describe("Parser", [&]() {
AssertThat(ts_parser_set_language(parser, &language), IsFalse());
AssertThat(ts_parser_language(parser), Equals<const TSLanguage *>(nullptr));
});
it("does nothing when parse is called while the language is null", [&]() {
tree = ts_parser_parse_string(parser, nullptr, "{}", 2);
AssertThat(tree, Equals<TSTree *>(nullptr));
ts_parser_set_language(parser, nullptr);
tree = ts_parser_parse_string(parser, nullptr, "{}", 2);
AssertThat(tree, Equals<TSTree *>(nullptr));
});
});
describe("set_logger(TSLogger)", [&]() {