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Keep track of AST node sizes and positions

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This commit is contained in:
Max Brunsfeld 2014-03-01 15:44:25 -08:00
parent 5045d5cccc
commit 72a0c0e09c
5 changed files with 51 additions and 8 deletions
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23
spec/runtime/json_spec.cpp
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@ -49,6 +49,29 @@ describe("json", []() {
AssertThat(string(ts_document_string(doc)), Equals("(value (array (value (number)) (value (number)) (value (number))))"));
});
describe("tracking the positions of AST nodes", [&]() {
it("records the widths and offsets of nodes", [&]() {
ts_document_set_input_string(doc, " [12, 5]");
const ts_tree *tree = ts_document_tree(doc);
const ts_tree *array = ts_tree_children(tree)[0];
const ts_tree *number1 = ts_tree_children(array)[0];
const ts_tree *number2 = ts_tree_children(array)[1];
AssertThat(number1->offset, Equals(0));
AssertThat(number1->size, Equals(2));
AssertThat(number2->offset, Equals(1));
AssertThat(number2->size, Equals(1));
AssertThat(array->offset, Equals(2));
AssertThat(array->size, Equals(7));
AssertThat(tree->offset, Equals(2));
AssertThat(tree->size, Equals(7));
});
});
describe("errors", [&]() {
it("reports errors in the top-level node", [&]() {
ts_document_set_input_string(doc, "[");