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feat: add post-generation script to preserve buffer overflow fix

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Created scripts/post-generate.sh that automatically re-applies the critical
buffer overflow fix to parser.h after tree-sitter generate runs. This fix
prevents undefined behavior in set_contains() when accessing an empty array.

The script is automatically executed after tree-sitter generate via the npm
generate script. Added generate:only for cases where post-processing should
be skipped.
This commit is contained in:
Ismo Vuorinen
2025-12-04 01:00:55 +02:00
parent 8ad4483b0b
commit a0bbc781f6
6 changed files with 41 additions and 6 deletions
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6
src/tree_sitter/array.h
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@@ -62,7 +62,7 @@ extern "C" {
/// Push a new `element` onto the end of the array.
#define array_push(self, element) \
(_array__grow((Array *)(self), 1, array_elem_size(self)), \
(self)->contents[(self)->size++] = (element))
(self)->contents[(self)->size++] = (element))
/// Increase the array's size by `count` elements.
/// New elements are zero-initialized.
@@ -218,8 +218,8 @@ static inline void _array__grow(Array *self, uint32_t count, size_t element_size
/// This is not what you're looking for, see `array_splice`.
static inline void _array__splice(Array *self, size_t element_size,
uint32_t index, uint32_t old_count,
uint32_t new_count, const void *elements) {
uint32_t index, uint32_t old_count,
uint32_t new_count, const void *elements) {
uint32_t new_size = self->size + new_count - old_count;
uint32_t old_end = index + old_count;
uint32_t new_end = index + new_count;