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Add ts_language_alias_at helper function

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This commit is contained in:
Max Brunsfeld 2020-06-15 09:58:07 -07:00
parent de53b82e2c
commit 6a46dff89a
4 changed files with 84 additions and 61 deletions
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24
lib/src/get_changed_ranges.c
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@ -146,17 +146,21 @@ static bool iterator_tree_is_visible(const Iterator *self) {
if (ts_subtree_visible(*entry.subtree)) return true;
if (self->cursor.stack.size > 1) {
Subtree parent = *self->cursor.stack.contents[self->cursor.stack.size - 2].subtree;
const TSSymbol *alias_sequence = ts_language_alias_sequence(
return ts_language_alias_at(
self->language,
parent.ptr->production_id
);
return alias_sequence && alias_sequence[entry.structural_child_index] != 0;
parent.ptr->production_id,
entry.structural_child_index
) != 0;
}
return false;
}
static void iterator_get_visible_state(const Iterator *self, Subtree *tree,
TSSymbol *alias_symbol, uint32_t *start_byte) {
static void iterator_get_visible_state(
const Iterator *self,
Subtree *tree,
TSSymbol *alias_symbol,
uint32_t *start_byte
) {
uint32_t i = self->cursor.stack.size - 1;
if (self->in_padding) {
@ -169,13 +173,11 @@ static void iterator_get_visible_state(const Iterator *self, Subtree *tree,
if (i > 0) {
const Subtree *parent = self->cursor.stack.contents[i - 1].subtree;
const TSSymbol *alias_sequence = ts_language_alias_sequence(
*alias_symbol = ts_language_alias_at(
self->language,
parent->ptr->production_id
parent->ptr->production_id,
entry.structural_child_index
);
if (alias_sequence) {
*alias_symbol = alias_sequence[entry.structural_child_index];
}
}
if (ts_subtree_visible(*entry.subtree) || *alias_symbol) {