53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#ifndef clox_value_h
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#define clox_value_h
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#include "common.h"
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typedef struct Obj Obj;
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typedef struct ObjString ObjString;
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//typedef double Value;
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typedef enum {
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VAL_BOOL,
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VAL_NIL,
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VAL_NUMBER,
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VAL_OBJ
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} ValueType;
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typedef struct {
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ValueType type;
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union {
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bool boolean;
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double number;
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Obj* obj;
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} as;
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} Value;
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#define IS_BOOL(value) ((value).type == VAL_BOOL)
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#define IS_NIL(value) ((value).type == VAL_NIL)
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#define IS_NUMBER(value) ((value).type == VAL_NUMBER)
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#define IS_OBJ(value) ((value).type == VAL_OBJ)
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#define AS_OBJ(value) ((value).as.obj)
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#define AS_BOOL(value) ((value).as.boolean)
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#define AS_NUMBER(value) ((value).as.number)
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#define BOOL_VAL(value) ((Value){VAL_BOOL, {.boolean = value}})
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#define NIL_VAL ((Value){VAL_NIL, {.number = 0}})
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#define NUMBER_VAL(value) ((Value){VAL_NUMBER, {.number = value}})
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#define OBJ_VAL(object) ((Value){VAL_OBJ, {.obj = (Obj*)object}})
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typedef struct {
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int capacity;
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int count;
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Value* values;
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} ValueArray;
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bool valuesEqual(Value a, Value b);
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void initValueArray(ValueArray* array);
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void writeValueArray(ValueArray* array, Value value);
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void freeValueArray(ValueArray* array);
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void printValue(Value value);
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#endif
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