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Author: AzliRynz

value.h

@@ -0,0 +1,44 @@
+#ifndef VALUE_H
+#define VALUE_H
+
+#include <stdbool.h>
+
+typedef enum {
+    TYPE_NIL,
+    TYPE_BOOL,
+    TYPE_INT,
+    TYPE_FLOAT,
+    TYPE_STRING
+} ValueType;
+
+typedef struct {
+    ValueType type;
+    union {
+        bool bool_val;
+        int int_val;
+        double float_val;
+        const char* str_val;
+    } data;
+} Value;
+
+#define NIL_VAL ((Value){ TYPE_NIL, { .int_val = 0 } })
+#define BOOL_VAL(v) ((Value){ TYPE_BOOL, { .bool_val = v } })
+#define INT_VAL(v) ((Value){ TYPE_INT, { .int_val = v } })
+#define NUMBER_VAL(v) ((Value){ TYPE_FLOAT, { .float_val = v } })
+#define STRING_VAL(s) ((Value){ TYPE_STRING, { .str_val = s } })
+
+#define IS_BOOL(v) ((v).type == TYPE_BOOL)
+#define IS_NIL(v) ((v).type == TYPE_NIL)
+#define IS_INT(v) ((v).type == TYPE_INT)
+#define IS_FLOAT(v) ((v).type == TYPE_FLOAT)
+#define IS_STRING(v) ((v).type == TYPE_STRING)
+#define IS_NUMBER(v) (IS_INT(v) || IS_FLOAT(v))
+
+#define AS_BOOL(v) ((v).data.bool_val)
+#define AS_INT(v) ((v).data.int_val)
+#define AS_FLOAT(v) ((v).data.float_val)
+#define AS_STRING(v) ((v).data.str_val)
+
+void print_value(Value value);
+
+#endif