Initial commit

object.h

@@ -0,0 +1,116 @@
+#ifndef clox_object_h
+#define clox_object_h
+
+#include "common.h"
+#include "chunk.h"
+#include "table.h"
+#include "value.h"
+
+#define OBJ_TYPE(value) (AS_OBJ(value)->type)
+
+#define IS_BOUND_METHOD(value) isObjType(value, OBJ_BOUND_METHOD)
+#define IS_CLASS(value) isObjType(value, OBJ_CLASS)
+#define IS_CLOSURE(value) isObjType(value, OBJ_CLOSURE)
+#define IS_FUNCTION(value) isObjType(value, OBJ_FUNCTION)
+#define IS_INSTANCE(value) isObjType(value, OBJ_INSTANCE)
+#define IS_NATIVE(value) isObjTyep(value, OBJ_NATIVE)
+#define IS_STRING(value) isObjType(value, OBJ_STRING)
+
+#define AS_BOUND_METHOD(value) ((ObjBoundMethod*)AS_OBJ(value))
+#define AS_CLASS(value) ((ObjClass*)AS_OBJ(value))
+#define AS_CLOSURE(value) ((ObjClosure*)AS_OBJ(value))
+#define AS_FUNCTION(value) ((ObjFunction*)AS_OBJ(value))
+#define AS_INSTANCE(value) ((ObjInstance*)AS_OBJ(value))
+#define AS_NATIVE(value) (((ObjNative*)AS_OBJ(value))->function)
+#define AS_STRING(value) ((ObjString*)AS_OBJ(value))
+#define AS_CSTRING(value) (((ObjString*)AS_OBJ(value))->chars)
+
+typedef enum {
+    OBJ_BOUND_METHOD,
+    OBJ_CLASS,
+    OBJ_CLOSURE,
+    OBJ_FUNCTION,
+    OBJ_INSTANCE,
+    OBJ_NATIVE,
+    OBJ_STRING,
+    OBJ_UPVALUE,
+} ObjType;
+
+struct Obj {
+    ObjType type;
+    bool isMarked;
+    struct Obj* next;
+};
+
+typedef struct {
+    Obj obj;
+    int arity;
+    int upvalueCount;
+    Chunk chunk;
+    ObjString* name;
+} ObjFunction;
+
+typedef Value (*NativeFn)(int argCount, Value* args);
+
+typedef struct {
+    Obj obj;
+    NativeFn function;
+} ObjNative;
+
+struct ObjString {
+    Obj obj;
+    int length;
+    char* chars;
+    uint32_t hash;
+};
+
+typedef struct ObjUpvalue {
+    Obj obj;
+    Value* location;
+    Value closed;
+    struct ObjUpvalue* next;
+} ObjUpvalue;
+
+typedef struct {
+    Obj obj;
+    ObjFunction* function;
+    ObjUpvalue** upvalues;
+    int upvalueCount;
+} ObjClosure;
+
+typedef struct {
+    Obj obj;
+    ObjString* name;
+    Table methods;
+} ObjClass;
+
+typedef struct {
+    Obj obj;
+    ObjClass* klass;
+    Table fields;
+} ObjInstance;
+
+typedef struct {
+    Obj obj;
+    Value receiver;
+    ObjClosure* method;
+} ObjBoundMethod;
+
+ObjBoundMethod* newBoundMethod(Value receiver, ObjClosure* method);
+ObjClass* newClass(ObjString* name);
+ObjClosure* newClosure(ObjFunction* function);
+ObjFunction* newFunction();
+ObjInstance* newInstance(ObjClass* klass);
+ObjNative* newNative(NativeFn function);
+ObjString* takeString(char* chars, int length);
+ObjString* copyString(const char* chars, int length);
+ObjUpvalue* newUpvalue(Value* slot);
+void printObject(Value value);
+
+static inline bool isObjType(Value value, ObjType type)
+{
+    return IS_OBJ(value) && AS_OBJ(value)->type == type;
+}
+
+#endif // clox_object_h
+