traxys/tree-sitter
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Merge remote-tracking branch 'origin/master' into line-numbers

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This commit is contained in:
joshvera 2015-11-30 12:36:11 -05:00
commit f5fc247c8b
12 changed files with 681 additions and 394 deletions
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43
src/runtime/tree.c
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@ -44,6 +44,21 @@ TSTree *ts_tree_make_error(TSLength size, TSLength padding,
return result;
}
void ts_tree_assign_parents(TSTree *self) {
TSLength offset = ts_length_zero();
for (size_t i = 0; i < self->child_count; i++) {
TSTree *child = self->children[i];
if (child->context.parent != self) {
child->context.parent = self;
child->context.index = i;
child->context.offset = offset;
child->context.offset_point = ts_tree_offset_point(self);
ts_tree_assign_parents(child);
}
offset = ts_length_add(offset, ts_tree_total_size(child));
}
}
static void ts_tree__set_children(TSTree *self, TSTree **children,
size_t child_count) {
self->children = children;
@ -52,10 +67,6 @@ static void ts_tree__set_children(TSTree *self, TSTree **children,
for (size_t i = 0; i < child_count; i++) {
TSTree *child = children[i];
ts_tree_retain(child);
child->context.parent = self;
child->context.index = i;
child->context.offset = ts_tree_total_size(self);
child->context.offset_point = ts_tree_offset_point(self);
if (i == 0) {
self->padding = child->padding;
@ -166,6 +177,30 @@ bool ts_tree_eq(const TSTree *self, const TSTree *other) {
return true;
}
int ts_tree_compare(const TSTree *left, const TSTree *right) {
if (left->symbol < right->symbol)
return -1;
if (right->symbol < left->symbol)
return 1;
if (left->child_count < right->child_count)
return -1;
if (right->child_count < left->child_count)
return 1;
for (size_t i = 0; i < left->child_count; i++) {
TSTree *left_child = left->children[i];
TSTree *right_child = right->children[i];
switch (ts_tree_compare(left_child, right_child)) {
case -1:
return -1;
case 1:
return 1;
default:
break;
}
}
return 0;
}
static size_t write_lookahead_to_string(char *string, size_t limit,
char lookahead) {
switch (lookahead) {