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Update trees' offsets when editing them

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This commit is contained in:
Max Brunsfeld 2016-09-08 17:54:51 -07:00
parent 131bbee160
commit 591fcc980c
3 changed files with 39 additions and 31 deletions
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24
spec/runtime/tree_spec.cc
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@ -3,6 +3,22 @@
#include "runtime/tree.h"
#include "runtime/length.h"
void assert_consistent(const TSTree *tree) {
if (tree->child_count == 0)
return;
AssertThat(tree->children[0]->padding, Equals<TSLength>(tree->padding));
TSLength total_children_size = ts_length_zero();
for (size_t i = 0; i < tree->child_count; i++) {
TSTree *child = tree->children[i];
AssertThat(child->context.offset, Equals(total_children_size));
assert_consistent(child);
total_children_size = ts_length_add(total_children_size, ts_tree_total_size(child));
}
AssertThat(total_children_size, Equals<TSLength>(ts_tree_total_size(tree)));
};
START_TEST
enum {
@ -163,14 +179,6 @@ describe("Tree", []() {
ts_tree_release(tree);
});
auto assert_consistent = [&](const TSTree *tree) {
AssertThat(tree->children[0]->padding, Equals<TSLength>(tree->padding));
TSLength total_children_size = ts_length_zero();
for (size_t i = 0; i < tree->child_count; i++)
total_children_size = ts_length_add(total_children_size, ts_tree_total_size(tree->children[i]));
AssertThat(total_children_size, Equals<TSLength>(ts_tree_total_size(tree)));
};
describe("edits within a tree's padding", [&]() {
it("resizes the padding of the tree and its leftmost descendants", [&]() {