GODOT IS OPEN SOURCE

1 files changed, 150 insertions, 0 deletions

diff --git a/core/string_db.h b/core/string_db.h
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+++ b/core/string_db.h
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+/*************************************************************************/
+/*  string_db.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 STRING_DB_H
+#define STRING_DB_H
+
+#include "hash_map.h"
+#include "ustring.h"
+#include "safe_refcount.h"
+
+/**
+	@author Juan Linietsky <reduzio@gmail.com>
+*/
+
+struct StaticCString {
+
+	const char *ptr;
+	static StaticCString create(const char *p_ptr);
+};
+
+
+
+class StringName {
+	
+
+	enum {
+		
+		STRING_TABLE_BITS=12,
+		STRING_TABLE_LEN=1<<STRING_TABLE_BITS,
+		STRING_TABLE_MASK=STRING_TABLE_LEN-1
+	};
+	
+	struct _Data {		
+		SafeRefCount refcount;
+		const char* cname;
+		String name;
+
+		String get_name() const {  return cname?String(cname):name; }
+		int idx;
+		uint32_t hash;
+		_Data *prev;
+		_Data *next;
+		_Data() { cname=NULL; next=prev=NULL; hash=0; }
+	};
+	
+	
+	static _Data *_table[STRING_TABLE_LEN];
+	
+	_Data *_data;
+	
+	union _HashUnion {
+		
+		_Data *ptr;
+		uint32_t hash;
+	};
+	
+	void unref();
+friend void register_core_types();
+friend void unregister_core_types();
+	
+	static void setup();
+	static void cleanup();
+	static bool configured;
+	
+	StringName(_Data *p_data) { _data=p_data; }
+public:
+
+
+	operator const void*() const { return (_data && (_data->cname || !_data->name.empty()))?(void*)1:0; }
+	
+	bool operator==(const String& p_name) const;
+	bool operator==(const char* p_name) const;
+	bool operator!=(const String& p_name) const;
+	_FORCE_INLINE_ bool operator<(const StringName& p_name) const {
+
+		return _data<p_name._data;
+	}
+	_FORCE_INLINE_ bool operator==(const StringName& p_name) const {
+		// the real magic of all this mess happens here. 
+		// this is why path comparisons are very fast
+		return _data==p_name._data;
+	}	
+	_FORCE_INLINE_ uint32_t hash() const {
+		
+		if (_data)
+			return _data->hash;
+		else
+			return 0;
+	}
+	bool operator!=(const StringName& p_name) const;
+	
+	operator String() const;
+
+	static StringName search(const char *p_name);
+	static StringName search(const CharType *p_name);
+	static StringName search(const String &p_name);
+
+	struct AlphCompare {
+
+		_FORCE_INLINE_ bool operator()(const StringName& l,const StringName& r) const {
+
+			return l.operator String() < r.operator String();
+		}
+	};
+
+	void operator=(const StringName& p_name);
+	StringName(const char *p_name);
+	StringName(const StringName& p_name);
+	StringName(const String& p_name);
+	StringName(const StaticCString& p_static_string);
+	StringName();
+	~StringName();
+};
+
+struct StringNameHasher {
+	
+	static _FORCE_INLINE_ uint32_t hash(const StringName &p_string) { return p_string.hash(); }
+};
+
+StringName _scs_create(const char *p_chr);
+
+//#define _SCS(m_cstr) (m_cstr[0]?StringName(StaticCString::create(m_cstr)):StringName())
+#define _SCS(m_cstr) _scs_create(m_cstr)
+
+#endif