55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
#include <stdio.h>
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#include "string.h"
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#include "object.h"
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#include "memory.h"
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#include "value.h"
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void initValueArray(ValueArray* array) {
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array->values = NULL;
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array->capacity = 0;
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array->count = 0;
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}
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void writeValueArray(ValueArray* array, Value value) {
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if (array->capacity < array->count + 1) {
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int oldCapacity = array->capacity;
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array->capacity = GROW_CAPACITY(oldCapacity);
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array->values = GROW_ARRAY(Value, array->values,
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oldCapacity, array->capacity);
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}
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array->values[array->count] = value;
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array->count++;
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}
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void freeValueArray(ValueArray* array) {
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FREE_ARRAY(Value, array->values, array->capacity);
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initValueArray(array);
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}
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void printValue(Value value) {
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switch (value.type) {
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case VAL_BOOL:
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printf(AS_BOOL(value) ? "true" : "false");
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break;
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case VAL_NIL: printf("nil"); break;
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case VAL_NUMBER: printf("%g", AS_NUMBER(value)); break;
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case VAL_OBJ: printObject(value); break;
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}
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}
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bool valuesEqual(Value a, Value b) {
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if (a.type != b.type) return false;
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switch (a.type) {
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case VAL_BOOL: return AS_BOOL(a) == AS_BOOL(b);
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case VAL_NIL: return true;
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case VAL_NUMBER: return AS_NUMBER(a) == AS_NUMBER(b);
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case VAL_OBJ: {
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ObjString* aString = AS_STRING(a);
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ObjString* bString = AS_STRING(b);
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return aString->length == bString->length &&
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memcmp(aString->chars, bString->chars,
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aString->length) == 0;
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}
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default: return false; // Unreachable.
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}
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}
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