chunk.c

//> Chunks of Bytecode chunk-c

#include "chunk.h"
//> chunk-c-include-memory
#include "memory.h"
//< chunk-c-include-memory
//> Garbage Collection chunk-include-vm
#include "vm.h"
//< Garbage Collection chunk-include-vm

void initChunk(Chunk* chunk) {
  chunk->count = 0;
  chunk->capacity = 0;
  chunk->code = nil;
//> chunk-null-lines
  chunk->lines = nil;
//< chunk-null-lines
//> chunk-init-constant-array
  initValueArray(&chunk->constants);
//< chunk-init-constant-array
}
//> free-chunk
void freeChunk(Chunk* chunk) {
  FREE_ARRAY(u8int, chunk->code, chunk->capacity);
//> chunk-free-lines
  FREE_ARRAY(int, chunk->lines, chunk->capacity);
//< chunk-free-lines
//> chunk-free-constants
  freeValueArray(&chunk->constants);
//< chunk-free-constants
  initChunk(chunk);
}
//< free-chunk
/* Chunks of Bytecode write-chunk < Chunks of Bytecode write-chunk-with-line
void writeChunk(Chunk* chunk, u8int byte) {
*/
//> write-chunk
//> write-chunk-with-line
void writeChunk(Chunk* chunk, u8int byte, int line) {
//< write-chunk-with-line
  if (chunk->capacity < chunk->count + 1) {
    int oldCapacity = chunk->capacity;
    chunk->capacity = GROW_CAPACITY(oldCapacity);
    chunk->code = GROW_ARRAY(chunk->code, u8int,
        oldCapacity, chunk->capacity);
//> write-chunk-line
    chunk->lines = GROW_ARRAY(chunk->lines, int,
        oldCapacity, chunk->capacity);
//< write-chunk-line
  }

  chunk->code[chunk->count] = byte;
//> chunk-write-line
  chunk->lines[chunk->count] = line;
//< chunk-write-line
  chunk->count++;
}
//< write-chunk
//> add-constant
int addConstant(Chunk* chunk, Value value) {
//> Garbage Collection add-constant-push
  push(value);
//< Garbage Collection add-constant-push
  writeValueArray(&chunk->constants, value);
//> Garbage Collection add-constant-pop
  pop();
//< Garbage Collection add-constant-pop
  return chunk->constants.count - 1;
}
//< add-constant