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Store indices on nodes to speed up traversal methods

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This commit is contained in:
Max Brunsfeld 2015-08-15 23:35:20 -07:00
parent d70a7227a1
commit a5d73ed676
4 changed files with 66 additions and 39 deletions
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26
spec/runtime/node_spec.cc
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@ -65,23 +65,27 @@ describe("Node", []() {
describe("next_sibling() and prev_sibling()", [&]() {
it("returns the node's next and previous siblings", [&]() {
TSNode array = ts_node_child(root, 0);
TSNode number1 = ts_node_child(array, 0);
TSNode number2 = ts_node_child(array, 1);
TSNode number3 = ts_node_child(array, 2);
TSNode array_node = ts_node_child(root, 0);
TSNode number_node = ts_node_child(array_node, 0);
TSNode false_node = ts_node_child(array_node, 1);
TSNode object_node = ts_node_child(array_node, 2);
TSNode string_node = ts_node_child(object_node, 0);
TSNode null_node = ts_node_child(object_node, 1);
AssertThat(ts_node_next_sibling(number1), Equals(number2));
AssertThat(ts_node_next_sibling(number2), Equals(number3));
AssertThat(ts_node_prev_sibling(number3), Equals(number2));
AssertThat(ts_node_prev_sibling(number2), Equals(number1));
AssertThat(ts_node_next_sibling(number_node), Equals(false_node));
AssertThat(ts_node_next_sibling(false_node), Equals(object_node));
AssertThat(ts_node_next_sibling(string_node), Equals(null_node));
AssertThat(ts_node_prev_sibling(object_node), Equals(false_node));
AssertThat(ts_node_prev_sibling(false_node), Equals(number_node));
AssertThat(ts_node_prev_sibling(null_node), Equals(string_node));
});
it("returns null when the node has no parent", [&]() {
TSNode array = ts_node_child(root, 0);
TSNode array_node = ts_node_child(root, 0);
AssertThat(ts_node_next_sibling(root).data, Equals<void *>(nullptr));
AssertThat(ts_node_prev_sibling(root).data, Equals<void *>(nullptr));
AssertThat(ts_node_next_sibling(array).data, Equals<void *>(nullptr));
AssertThat(ts_node_prev_sibling(array).data, Equals<void *>(nullptr));
AssertThat(ts_node_next_sibling(array_node).data, Equals<void *>(nullptr));
AssertThat(ts_node_prev_sibling(array_node).data, Equals<void *>(nullptr));
});
});