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Merge pull request #172 from tree-sitter/cache-parent-nodes

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Cache parent nodes to speed up `ts_node_parent` in common cases
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Max Brunsfeld 2018-05-29 17:21:24 -07:00 • committed by GitHub
commit fb14cb0737
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4 changed files with 87 additions and 14 deletions
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11
test/runtime/node_test.cc
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@ -438,6 +438,13 @@ describe("Node", [&]() {
AssertThat(ts_node_end_byte(leaf), Equals(number_end_index));
AssertThat(ts_node_start_point(leaf), Equals<TSPoint>({ 3, 2 }));
AssertThat(ts_node_end_point(leaf), Equals<TSPoint>({ 3, 5 }));
TSNode parent = ts_node_parent(leaf);
AssertThat(ts_node_type(parent), Equals("array"));
AssertThat(ts_node_start_byte(parent), Equals(array_index));
parent = ts_node_parent(parent);
AssertThat(ts_node_type(parent), Equals("value"));
AssertThat(ts_node_start_byte(parent), Equals(array_index));
});
});
@ -495,6 +502,8 @@ describe("Node", [&]() {
AssertThat(ts_node_end_byte(node2), Equals(null_end_index));
AssertThat(ts_node_start_point(node2), Equals<TSPoint>({ 6, 4 }));
AssertThat(ts_node_end_point(node2), Equals<TSPoint>({ 6, 13 }));
AssertThat(ts_node_parent(node1), Equals(node2));
});
it("works in the presence of multi-byte characters", [&]() {
@ -530,6 +539,8 @@ describe("Node", [&]() {
AssertThat(ts_node_end_byte(node2), Equals(null_end_index));
AssertThat(ts_node_start_point(node2), Equals<TSPoint>({ 6, 4 }));
AssertThat(ts_node_end_point(node2), Equals<TSPoint>({ 6, 13 }));
AssertThat(ts_node_parent(node1), Equals(node2));
});
});
});