52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
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#include <stdlib.h>
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#include "chunk.h"
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#include "memory.h"
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#include "value.h"
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void initChunk(Chunk* chunk) {
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chunk->count = 0;
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chunk->capacity = 0;
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chunk->code = NULL;
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chunk->lines = NULL;
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initValueArray(&chunk->constants);
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}
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void freeChunk(Chunk* chunk) {
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FREE_ARRAY(uint8_t, chunk->code, chunk->capacity);
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FREE_ARRAY(int, chunk->lines, chunk->capacity);
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freeValueArray(&chunk->constants);
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initChunk(chunk);
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}
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void writeChunk(Chunk* chunk, uint8_t byte, int line) {
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if (chunk->capacity < chunk->count + 1) {
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int oldCapacity = chunk->capacity;
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chunk->capacity = GROW_CAPACITY(oldCapacity);
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chunk->code = GROW_ARRAY(chunk->code, uint8_t, oldCapacity, chunk->capacity);
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chunk->lines = GROW_ARRAY(chunk->lines, int, oldCapacity, chunk->capacity);
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}
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chunk->code[chunk->count] = byte;
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chunk->lines[chunk->count] = line;
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chunk->count++;
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}
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int addConstant(Chunk* chunk, Value value) {
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writeValueArray(&chunk->constants, value);
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return (chunk->constants.count - 1);
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}
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void writeConstant(Chunk* chunk, Value value, int line) {
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int i=addConstant(chunk, value);
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if (i<256) {
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writeChunk(chunk, OP_CONSTANT, line);
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writeChunk(chunk, i&0xFF, line);
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} else {
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writeChunk(chunk, OP_CONSTANT_LONG, line);
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writeChunk(chunk, i&0xFF0000>>16, line);
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writeChunk(chunk, i&0xFF00>>8, line);
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writeChunk(chunk, i&0xFF, line);
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}
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}
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