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Refactor parser and stack

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This commit is contained in:
Max Brunsfeld 2014-08-09 01:03:55 -07:00
parent 1e79ed794b
commit 4327f3ed26
7 changed files with 108 additions and 183 deletions
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50
spec/runtime/stack_spec.cc
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@ -5,7 +5,6 @@
START_TEST
enum { sym1, sym2, hidden_sym };
int hidden_symbols[] = { 0, 0, 1 };
describe("stacks", [&]() {
TSStack stack;
@ -42,55 +41,6 @@ describe("stacks", [&]() {
AssertThat(ts_stack_top_node(&stack), Equals(node1));
});
});
describe("reducing a symbol", [&]() {
TSTree **nodes;
before_each([&]() {
nodes = tree_array({
ts_tree_make_leaf(sym1, 5, 1, 0),
ts_tree_make_leaf(sym1, 5, 1, 0),
ts_tree_make_leaf(hidden_sym, 5, 1, 0),
ts_tree_make_leaf(sym1, 5, 1, 0),
});
for (TSStateId i = 0; i < 4; i++)
ts_stack_push(&stack, 10 + i, nodes[i]);
});
after_each([&]() {
for (TSStateId i = 0; i < 4; i++)
ts_tree_release(nodes[i]);
free(nodes);
});
it("pops the given number of nodes off the stack", [&]() {
AssertThat(stack.size, Equals<size_t>(4));
ts_stack_reduce(&stack, sym2, 3, hidden_symbols);
AssertThat(stack.size, Equals<size_t>(1));
});
it("returns a node with the given symbol", [&]() {
TSTree *node = ts_stack_reduce(&stack, sym2, 3, hidden_symbols);
AssertThat(node->symbol, Equals(sym2));
});
it("removes any hidden nodes from its regular list of children", [&]() {
TSTree *expected_children[3] = {
stack.entries[1].node,
stack.entries[2].node,
stack.entries[3].node,
};
TSTree *node = ts_stack_reduce(&stack, sym2, 3, hidden_symbols);
size_t child_count;
TSTree **children = ts_tree_children(node, &child_count);
AssertThat(child_count, Equals<size_t>(3));
for (size_t i = 0; i < 2; i++)
AssertThat(children[i], Equals(expected_children[i]));
});
});
});
END_TEST