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virtualx-engine/modules/gdscript/gd_script.h
Juan Linietsky 1cad087969 Making Godot Easier to Use.. 
-=-=-=-=-=-=-=-=-=-=-=-=-=-=

-Auto indenter in code editor, this makes it much easier to paste external code.
-Zoom in 2D viewport now uses the mouse pointer as reference.
-Obscure hack to see where code/line of GDScript in C++ backtrace.
-Fixed a bug where keys would get stuck on X11 if pressed simultaneously
-Added Api on IP singleton to request local IPs.
-Premultiplied alpha support when importing texture, editing PNGs and as a blend mode.
2014-05-24 01:35:47 -03:00

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/*************************************************************************/
/* gd_script.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef GD_SCRIPT_H
#define GD_SCRIPT_H
#include "script_language.h"
#include "io/resource_loader.h"
#include "io/resource_saver.h"
#include "os/thread.h"
#include "pair.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_JUMP,
OPCODE_JUMP_IF,
OPCODE_JUMP_IF_NOT,
OPCODE_JUMP_TO_DEF_ARGUMENT,
OPCODE_RETURN,
OPCODE_ITERATE_BEGIN,
OPCODE_ITERATE,
OPCODE_ASSERT,
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 DEBUG_ENABLED
CharString func_cname;
const char*_func_cname;
#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;
public:
_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; }
Variant call(GDInstance *p_instance,const Variant **p_args, int p_argcount,Variant::CallError& r_err);
GDFunction();
};
class GDNativeClass : public Reference {
OBJ_TYPE(GDNativeClass,Reference);
StringName name;
protected:
bool _get(const StringName& p_name,Variant &r_ret) const;
static void _bind_methods();
public:
_FORCE_INLINE_ const StringName& get_name() const { return name; }
Variant _new();
Object *instance();
GDNativeClass(const StringName& p_name);
};
class GDScript : public Script {
OBJ_TYPE(GDScript,Script);
bool tool;
bool valid;
friend class GDInstance;
friend class GDFunction;
friend class GDCompiler;
friend class GDFunctions;
Variant _static_ref; //used for static call
Ref<GDNativeClass> native;
Ref<GDScript> base;
GDScript *_base; //fast pointer access
GDScript *_owner; //for subclasses
Set<StringName> members; //members are just indices to the instanced script.
Map<StringName,Variant> constants;
Map<StringName,GDFunction> member_functions;
Map<StringName,int> member_indices; //members are just indices to the instanced script.
Map<StringName,Ref<GDScript> > subclasses;
#ifdef TOOLS_ENABLED
Map<StringName,Variant> member_default_values;
#endif
Map<StringName,PropertyInfo> member_info;
GDFunction *initializer; //direct pointer to _init , faster to locate
int subclass_count;
Set<Object*> instances;
//exported members
String source;
String path;
String name;
GDInstance* _create_instance(const Variant** p_args,int p_argcount,Object *p_owner,bool p_isref);
void _set_subclass_path(Ref<GDScript>& p_sc,const String& p_path);
#ifdef TOOLS_ENABLED
Set<PlaceHolderScriptInstance*> placeholders;
void _update_placeholder(PlaceHolderScriptInstance *p_placeholder);
virtual void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder);
#endif
protected:
bool _get(const StringName& p_name,Variant &r_ret) const;
bool _set(const StringName& p_name, const Variant& p_value);
void _get_property_list(List<PropertyInfo> *p_properties) const;
Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error);
// void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
static void _bind_methods();
public:
const Map<StringName,Ref<GDScript> >& get_subclasses() const { return subclasses; }
const Map<StringName,Variant >& get_constants() const { return constants; }
const Set<StringName>& get_members() const { return members; }
const Map<StringName,GDFunction>& get_member_functions() const { return member_functions; }
const Ref<GDNativeClass>& get_native() const { return native; }
bool is_tool() const { return tool; }
Ref<GDScript> get_base() const;
const Map<StringName,int>& debug_get_member_indices() const { return member_indices; }
const Map<StringName,GDFunction>& debug_get_member_functions() const; //this is debug only
StringName debug_get_member_by_index(int p_idx) const;
Variant _new(const Variant** p_args,int p_argcount,Variant::CallError& r_error);
virtual bool can_instance() const;
virtual StringName get_instance_base_type() const; // this may not work in all scripts, will return empty if so
virtual ScriptInstance* instance_create(Object *p_this);
virtual bool instance_has(const Object *p_this) const;
virtual bool has_source_code() const;
virtual String get_source_code() const;
virtual void set_source_code(const String& p_code);
virtual Error reload();
virtual String get_node_type() const;
void set_script_path(const String& p_path) { path=p_path; } //because subclasses need a path too...
Error load_source_code(const String& p_path);
Error load_byte_code(const String& p_path);
virtual ScriptLanguage *get_language() const;
GDScript();
};
class GDInstance : public ScriptInstance {
friend class GDScript;
friend class GDFunction;
friend class GDFunctions;
Object *owner;
Ref<GDScript> script;
Vector<Variant> members;
bool base_ref;
void _ml_call_reversed(GDScript *sptr,const StringName& p_method,const Variant** p_args,int p_argcount);
public:
virtual bool set(const StringName& p_name, const Variant& p_value);
virtual bool get(const StringName& p_name, Variant &r_ret) const;
virtual void get_property_list(List<PropertyInfo> *p_properties) const;
virtual void get_method_list(List<MethodInfo> *p_list) const;
virtual bool has_method(const StringName& p_method) const;
virtual Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error);
virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
virtual void call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount);
Variant debug_get_member_by_index(int p_idx) const { return members[p_idx]; }
virtual void notification(int p_notification);
virtual Ref<Script> get_script() const;
virtual ScriptLanguage *get_language();
void set_path(const String& p_path);
GDInstance();
~GDInstance();
};
class GDScriptLanguage : public ScriptLanguage {
static GDScriptLanguage *singleton;
Variant* _global_array;
Vector<Variant> global_array;
Map<StringName,int> globals;
struct CallLevel {
Variant *stack;
GDFunction *function;
GDInstance *instance;
int *ip;
int *line;
};
int _debug_parse_err_line;
String _debug_parse_err_file;
String _debug_error;
int _debug_call_stack_pos;
int _debug_max_call_stack;
CallLevel *_call_stack;
void _add_global(const StringName& p_name,const Variant& p_value);
public:
int calls;
bool debug_break(const String& p_error,bool p_allow_continue=true);
bool debug_break_parse(const String& p_file, int p_line,const String& p_error);
_FORCE_INLINE_ void enter_function(GDInstance *p_instance,GDFunction *p_function, Variant *p_stack, int *p_ip, int *p_line) {
if (Thread::get_main_ID()!=Thread::get_caller_ID())
return; //no support for other threads than main for now
if (ScriptDebugger::get_singleton()->get_lines_left()>0 && ScriptDebugger::get_singleton()->get_depth()>=0)
ScriptDebugger::get_singleton()->set_depth( ScriptDebugger::get_singleton()->get_depth() +1 );
if (_debug_call_stack_pos >= _debug_max_call_stack) {
//stack overflow
_debug_error="Stack Overflow (Stack Size: "+itos(_debug_max_call_stack)+")";
ScriptDebugger::get_singleton()->debug(this);
return;
}
_call_stack[_debug_call_stack_pos].stack=p_stack;
_call_stack[_debug_call_stack_pos].instance=p_instance;
_call_stack[_debug_call_stack_pos].function=p_function;
_call_stack[_debug_call_stack_pos].ip=p_ip;
_call_stack[_debug_call_stack_pos].line=p_line;
_debug_call_stack_pos++;
}
_FORCE_INLINE_ void exit_function() {
if (Thread::get_main_ID()!=Thread::get_caller_ID())
return; //no support for other threads than main for now
if (ScriptDebugger::get_singleton()->get_lines_left()>0 && ScriptDebugger::get_singleton()->get_depth()>=0)
ScriptDebugger::get_singleton()->set_depth( ScriptDebugger::get_singleton()->get_depth() -1 );
if (_debug_call_stack_pos==0) {
_debug_error="Stack Underflow (Engine Bug)";
ScriptDebugger::get_singleton()->debug(this);
return;
}
_debug_call_stack_pos--;
}
struct {
StringName _init;
StringName _notification;
StringName _set;
StringName _get;
StringName _get_property_list;
StringName _script_source;
} strings;
_FORCE_INLINE_ int get_global_array_size() const { return global_array.size(); }
_FORCE_INLINE_ Variant* get_global_array() { return _global_array; }
_FORCE_INLINE_ const Map<StringName,int>& get_global_map() { return globals; }
_FORCE_INLINE_ static GDScriptLanguage *get_singleton() { return singleton; }
virtual String get_name() const;
/* LANGUAGE FUNCTIONS */
virtual void init();
virtual String get_type() const;
virtual String get_extension() const;
virtual Error execute_file(const String& p_path) ;
virtual void finish();
/* EDITOR FUNCTIONS */
virtual void get_reserved_words(List<String> *p_words) const;
virtual void get_comment_delimiters(List<String> *p_delimiters) const;
virtual void get_string_delimiters(List<String> *p_delimiters) const;
virtual String get_template(const String& p_class_name, const String& p_base_class_name) const;
virtual bool validate(const String& p_script,int &r_line_error,int &r_col_error,String& r_test_error, const String& p_path="",List<String> *r_functions=NULL) const;
virtual Script *create_script() const;
virtual bool has_named_classes() const;
virtual int find_function(const String& p_function,const String& p_code) const;
virtual String make_function(const String& p_class,const String& p_name,const StringArray& p_args) const;
virtual Error complete_keyword(const String& p_code, int p_line, const String& p_base_path,const String& p_keyword, List<String>* r_options);
virtual void auto_indent_code(String& p_code,int p_from_line,int p_to_line) const;
/* DEBUGGER FUNCTIONS */
virtual String debug_get_error() const;
virtual int debug_get_stack_level_count() const;
virtual int debug_get_stack_level_line(int p_level) const;
virtual String debug_get_stack_level_function(int p_level) const;
virtual String debug_get_stack_level_source(int p_level) const;
virtual void debug_get_stack_level_locals(int p_level,List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1);
virtual void debug_get_stack_level_members(int p_level,List<String> *p_members, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1);
virtual void debug_get_globals(List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1);
virtual String debug_parse_stack_level_expression(int p_level,const String& p_expression,int p_max_subitems=-1,int p_max_depth=-1);
virtual void frame();
virtual void get_public_functions(List<MethodInfo> *p_functions) const;
virtual void get_public_constants(List<Pair<String,Variant> > *p_constants) const;
/* LOADER FUNCTIONS */
virtual void get_recognized_extensions(List<String> *p_extensions) const;
GDScriptLanguage();
~GDScriptLanguage();
};
class ResourceFormatLoaderGDScript : public ResourceFormatLoader {
public:
virtual RES load(const String &p_path,const String& p_original_path="");
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String& p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
class ResourceFormatSaverGDScript : public ResourceFormatSaver {
public:
virtual Error save(const String &p_path,const RES& p_resource,uint32_t p_flags=0);
virtual void get_recognized_extensions(const RES& p_resource,List<String> *p_extensions) const;
virtual bool recognize(const RES& p_resource) const;
};
#endif // GD_SCRIPT_H
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