54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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#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 sObj Obj;
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typedef struct sObjString ObjString;
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typedef struct sObjArray ObjArray;
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typedef struct sObjHash ObjHash;
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typedef enum {
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VAL_BOOL, VAL_NIL, VAL_NUMBER, VAL_OBJ, VAL_EMPTY
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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 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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#define EMPTY_VAL ((Value){ VAL_EMPTY, { .number = 0 } })
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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 IS_EMPTY(value) ((value).type == VAL_EMPTY)
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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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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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uint32_t hashValue(Value value);
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#endif
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