tree-sitter/lib/src/alloc.h

#ifndef TREE_SITTER_ALLOC_H_
#define TREE_SITTER_ALLOC_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <stdlib.h>
#include <stdbool.h>
#include <stdio.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);

#define ts_malloc  ts_record_malloc
#define ts_calloc  ts_record_calloc
#define ts_realloc ts_record_realloc
#define ts_free    ts_record_free

#else

// Allow clients to override allocation functions

#ifndef ts_malloc
#define ts_malloc  ts_malloc_default
#endif
#ifndef ts_calloc
#define ts_calloc  ts_calloc_default
#endif
#ifndef ts_realloc
#define ts_realloc ts_realloc_default
#endif
#ifndef ts_free
#define ts_free    ts_free_default
#endif

#include <stdlib.h>

static inline 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);
}

#endif

#ifdef __cplusplus
}
#endif

#endif  // TREE_SITTER_ALLOC_H_