Initial commit

chunk.c

@@ -0,0 +1,43 @@
+#include "chunk.h"
+#include "memory.h"
+#include "vm.h"
+
+void initChunk(Chunk* chunk)
+{
+    chunk->count = 0;
+    chunk->capacity = 0;
+    chunk->code = nullptr;
+    chunk->lines = nullptr;
+    initValueArray(&chunk->constants);
+}
+
+void freeChunk(Chunk* chunk)
+{
+    FREE_ARRAY(uint8_t, chunk->code, chunk->capacity);
+    FREE_ARRAY(int, chunk->lines, chunk->capacity);
+    freeValueArray(&chunk->constants);
+    initChunk(chunk);
+}
+
+void writeChunk(Chunk* chunk, uint8_t byte, int line)
+{
+    if (chunk->capacity < chunk->count + 1) {
+        int oldCapacity = chunk->capacity;
+        chunk->capacity = GROW_CAPACITY(oldCapacity);
+        chunk->code = GROW_ARRAY(uint8_t, chunk->code, oldCapacity, chunk->capacity);
+        chunk->lines = GROW_ARRAY(int, chunk->lines, oldCapacity, chunk->capacity);
+    }
+
+    chunk->code[chunk->count] = byte;
+    chunk->lines[chunk->count] = line;
+    chunk->count++;
+}
+
+int addConstant(Chunk* chunk, Value value)
+{
+    push(value);
+    writeValueArray(&chunk->constants, value);
+    pop();
+    return chunk->constants.count - 1;
+}
+