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#ifndef GD_FUNCTION_H
#define GD_FUNCTION_H
#include "self_list.h"
#include "os/thread.h"
#include "pair.h"
#include "variant.h"
#include "string_db.h"
#include "reference.h"
class GDInstance;
class GDScript;
class GDFunction {
public:
enum Opcode {
OPCODE_OPERATOR,
OPCODE_EXTENDS_TEST,
OPCODE_SET,
OPCODE_GET,
OPCODE_SET_NAMED,
OPCODE_GET_NAMED,
OPCODE_ASSIGN,
OPCODE_ASSIGN_TRUE,
OPCODE_ASSIGN_FALSE,
OPCODE_CONSTRUCT, //only for basic types!!
OPCODE_CONSTRUCT_ARRAY,
OPCODE_CONSTRUCT_DICTIONARY,
OPCODE_CALL,
OPCODE_CALL_RETURN,
OPCODE_CALL_BUILT_IN,
OPCODE_CALL_SELF,
OPCODE_CALL_SELF_BASE,
OPCODE_YIELD,
OPCODE_YIELD_SIGNAL,
OPCODE_YIELD_RESUME,
OPCODE_JUMP,
OPCODE_JUMP_IF,
OPCODE_JUMP_IF_NOT,
OPCODE_JUMP_TO_DEF_ARGUMENT,
OPCODE_RETURN,
OPCODE_ITERATE_BEGIN,
OPCODE_ITERATE,
OPCODE_ASSERT,
OPCODE_BREAKPOINT,
OPCODE_LINE,
OPCODE_END
};
enum Address {
ADDR_BITS=24,
ADDR_MASK=((1<<ADDR_BITS)-1),
ADDR_TYPE_MASK=~ADDR_MASK,
ADDR_TYPE_SELF=0,
ADDR_TYPE_CLASS=1,
ADDR_TYPE_MEMBER=2,
ADDR_TYPE_CLASS_CONSTANT=3,
ADDR_TYPE_LOCAL_CONSTANT=4,
ADDR_TYPE_STACK=5,
ADDR_TYPE_STACK_VARIABLE=6,
ADDR_TYPE_GLOBAL=7,
ADDR_TYPE_NIL=8
};
struct StackDebug {
int line;
int pos;
bool added;
StringName identifier;
};
private:
friend class GDCompiler;
StringName source;
mutable Variant nil;
mutable Variant *_constants_ptr;
int _constant_count;
const StringName *_global_names_ptr;
int _global_names_count;
const int *_default_arg_ptr;
int _default_arg_count;
const int *_code_ptr;
int _code_size;
int _argument_count;
int _stack_size;
int _call_size;
int _initial_line;
bool _static;
GDScript *_script;
StringName name;
Vector<Variant> constants;
Vector<StringName> global_names;
Vector<int> default_arguments;
Vector<int> code;
#ifdef TOOLS_ENABLED
Vector<StringName> arg_names;
#endif
List<StackDebug> stack_debug;
_FORCE_INLINE_ Variant *_get_variant(int p_address,GDInstance *p_instance,GDScript *p_script,Variant &self,Variant *p_stack,String& r_error) const;
_FORCE_INLINE_ String _get_call_error(const Variant::CallError& p_err, const String& p_where,const Variant**argptrs) const;
friend class GDScriptLanguage;
SelfList<GDFunction> function_list;
#ifdef DEBUG_ENABLED
CharString func_cname;
const char*_func_cname;
struct Profile {
StringName signature;
uint64_t call_count;
uint64_t self_time;
uint64_t total_time;
uint64_t frame_call_count;
uint64_t frame_self_time;
uint64_t frame_total_time;
uint64_t last_frame_call_count;
uint64_t last_frame_self_time;
uint64_t last_frame_total_time;
} profile;
#endif
public:
struct CallState {
GDInstance *instance;
Vector<uint8_t> stack;
int stack_size;
Variant self;
uint32_t alloca_size;
GDScript *_class;
int ip;
int line;
int defarg;
Variant result;
};
_FORCE_INLINE_ bool is_static() const { return _static; }
const int* get_code() const; //used for debug
int get_code_size() const;
Variant get_constant(int p_idx) const;
StringName get_global_name(int p_idx) const;
StringName get_name() const;
int get_max_stack_size() const;
int get_default_argument_count() const;
int get_default_argument_addr(int p_idx) const;
GDScript *get_script() const { return _script; }
void debug_get_stack_member_state(int p_line,List<Pair<StringName,int> > *r_stackvars) const;
_FORCE_INLINE_ bool is_empty() const { return _code_size==0; }
int get_argument_count() const { return _argument_count; }
StringName get_argument_name(int p_idx) const {
#ifdef TOOLS_ENABLED
ERR_FAIL_INDEX_V(p_idx,arg_names.size(),StringName());
return arg_names[p_idx];
#endif
return StringName();
}
Variant get_default_argument(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx,default_arguments.size(),Variant());
return default_arguments[p_idx];
}
Variant call(GDInstance *p_instance,const Variant **p_args, int p_argcount,Variant::CallError& r_err,CallState *p_state=NULL);
GDFunction();
~GDFunction();
};
class GDFunctionState : public Reference {
OBJ_TYPE(GDFunctionState,Reference);
friend class GDFunction;
GDFunction *function;
GDFunction::CallState state;
Variant _signal_callback(const Variant** p_args, int p_argcount, Variant::CallError& r_error);
protected:
static void _bind_methods();
public:
bool is_valid() const;
Variant resume(const Variant& p_arg=Variant());
GDFunctionState();
~GDFunctionState();
};
#endif // GD_FUNCTION_H
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