tree-sitter/lib/src/alloc.c
2021-12-18 09:53:58 +08:00

79 lines
1.8 KiB
C

#include "alloc.h"
#if defined(TREE_SITTER_ALLOCATION_TRACKING)
void *ts_record_malloc(size_t);
void *ts_record_calloc(size_t, size_t);
void *ts_record_realloc(void *, size_t);
void ts_record_free(void *);
bool ts_toggle_allocation_recording(bool);
static TSAllocator ts_tracking_allocator = {
.malloc = ts_record_malloc,
.calloc = ts_record_calloc,
.realloc = ts_record_realloc,
.free = ts_record_free,
};
TSAllocator *ts_allocator = &ts_tracking_allocator;
#else
#include <stdlib.h>
bool ts_toggle_allocation_recording(bool value) {
(void)value;
return false;
}
static inline void *ts_malloc_default(size_t size) {
void *result = malloc(size);
if (size > 0 && !result) {
fprintf(stderr, "tree-sitter failed to allocate %zu bytes", size);
exit(1);
}
return result;
}
static inline void *ts_calloc_default(size_t count, size_t size) {
void *result = calloc(count, size);
if (count > 0 && !result) {
fprintf(stderr, "tree-sitter failed to allocate %zu bytes", count * size);
exit(1);
}
return result;
}
static inline void *ts_realloc_default(void *buffer, size_t size) {
void *result = realloc(buffer, size);
if (size > 0 && !result) {
fprintf(stderr, "tree-sitter failed to reallocate %zu bytes", size);
exit(1);
}
return result;
}
static inline void ts_free_default(void *buffer) {
free(buffer);
}
static TSAllocator ts_default_allocator = {
.malloc = ts_malloc_default,
.calloc = ts_calloc_default,
.realloc = ts_realloc_default,
.free = ts_free_default,
};
// Allow clients to override allocation functions dynamically
TSAllocator *ts_allocator = &ts_default_allocator;
#endif // defined(TREE_SITTER_ALLOCATION_TRACKING)
TSAllocator *ts_set_allocator(TSAllocator *new_alloc)
{
TSAllocator *old = ts_allocator;
ts_allocator = new_alloc;
return old;
}