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Start work on error recovery

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- In runtime, make parse errors part of the parse tree
- Add error state to lexers in which they can accept any token
This commit is contained in:
Max Brunsfeld 2014-02-24 18:42:54 -08:00
parent 4520d6e1a2
commit e58a6d8ba7
18 changed files with 622 additions and 528 deletions
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14
spec/runtime/tree_spec.cpp
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@ -9,8 +9,8 @@ describe("trees", []() {
ts_tree *tree1, *parent1;
before_each([&]() {
tree1 = ts_tree_make(cat, 0, NULL);
parent1 = ts_tree_make(dog, 1, &tree1);
tree1 = ts_tree_make_leaf(cat);
parent1 = ts_tree_make_node(dog, 1, &tree1);
});
after_each([&]() {
@ -20,10 +20,10 @@ describe("trees", []() {
describe("equality", [&]() {
it("returns true for identical trees", [&]() {
ts_tree *tree2 = ts_tree_make(cat, 0, NULL);
ts_tree *tree2 = ts_tree_make_leaf(cat);
AssertThat(ts_tree_equals(tree1, tree2), Equals(1));
ts_tree *parent2 = ts_tree_make(dog, 1, &tree2);
ts_tree *parent2 = ts_tree_make_node(dog, 1, &tree2);
AssertThat(ts_tree_equals(parent1, parent2), Equals(1));
ts_tree_release(tree2);
@ -31,13 +31,13 @@ describe("trees", []() {
});
it("returns false for different trees", [&]() {
ts_tree *different_tree = ts_tree_make(pig, 0, NULL);
ts_tree *different_tree = ts_tree_make_leaf(pig);
AssertThat(ts_tree_equals(tree1, different_tree), Equals(0));
ts_tree *different_parent = ts_tree_make(dog, 1, &different_tree);
ts_tree *different_parent = ts_tree_make_node(dog, 1, &different_tree);
AssertThat(ts_tree_equals(parent1, different_parent), Equals(0));
ts_tree *parent_with_same_type = ts_tree_make(cat, 1, &different_parent);
ts_tree *parent_with_same_type = ts_tree_make_node(cat, 1, &different_parent);
AssertThat(ts_tree_equals(parent_with_same_type, tree1), Equals(0));
AssertThat(ts_tree_equals(tree1, parent_with_same_type), Equals(0));