lscript_typecheck.h
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- /**
- * @file lscript_typecheck.h
- * @brief typechecks script
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_LSCRIPT_TYPECHECK_H
- #define LL_LSCRIPT_TYPECHECK_H
- #include "lscript_error.h"
- LSCRIPTType implicit_casts(LSCRIPTType left_side, LSCRIPTType right_side);
- BOOL legal_casts(LSCRIPTType cast, LSCRIPTType base);
- LSCRIPTType promote(LSCRIPTType left_side, LSCRIPTType right_side);
- BOOL legal_assignment(LSCRIPTType left_side, LSCRIPTType right_side);
- typedef enum e_lscript_expression_types
- {
- LET_NULL,
- LET_ASSIGNMENT,
- LET_ADD_ASSIGN,
- LET_SUB_ASSIGN,
- LET_MUL_ASSIGN,
- LET_DIV_ASSIGN,
- LET_MOD_ASSIGN,
- LET_EQUALITY,
- LET_NOT_EQUALS,
- LET_LESS_EQUALS,
- LET_GREATER_EQUALS,
- LET_LESS_THAN,
- LET_GREATER_THAN,
- LET_PLUS,
- LET_MINUS,
- LET_TIMES,
- LET_DIVIDE,
- LET_MOD,
- LET_BIT_AND,
- LET_BIT_OR,
- LET_BIT_XOR,
- LET_BOOLEAN_AND,
- LET_BOOLEAN_OR,
- LET_PARENTHESIS,
- LET_UNARY_MINUS,
- LET_BOOLEAN_NOT,
- LET_BIT_NOT,
- LET_PRE_INCREMENT,
- LET_PRE_DECREMENT,
- LET_CAST,
- LET_VECTOR_INITIALIZER,
- LET_QUATERNION_INITIALIZER,
- LET_LIST_INITIALIZER,
- LET_LVALUE,
- LET_POST_INCREMENT,
- LET_POST_DECREMENT,
- LET_FUNCTION_CALL,
- LET_CONSTANT,
- LET_FOR_EXPRESSION_LIST,
- LET_FUNC_EXPRESSION_LIST,
- LET_LIST_EXPRESSION_LIST,
- LET_PRINT,
- LET_SHIFT_LEFT,
- LET_SHIFT_RIGHT,
- LET_EOF
- } LSCRIPTExpressionType;
- BOOL legal_binary_expression(LSCRIPTType &result, LSCRIPTType left_side, LSCRIPTType right_side, LSCRIPTExpressionType expression);
- BOOL legal_unary_expression(LSCRIPTType &result, LSCRIPTType left_side, LSCRIPTExpressionType expression);
- void init_supported_expressions(void);
- /*
- LScript automatic type casting
- LST_INTEGER -> LST_INTEGER
- LST_FLOATINGPOINT -> LST_FLOATINGPOINT
- LST_INTEGER -> LST_FLOATINGPOINT
- LST_FLOATINGPOINT -> LST_STRING
- LST_INTEGER -> LST_STRING
- LST_STRING -> LST_STRING
- LST_VECTOR -> LST_STRING
- LST_QUATERNION -> LST_STRING
- LST_LIST -> LST_STRING
- LST_VECTOR -> LST_VECTOR
-
- LST_QUATERNION -> LST_QUATERNION
-
- LST_FLOATINGPOINT -> LST_LIST
- LST_INTEGER -> LST_LIST
- LST_STRING -> LST_LIST
- LST_VECTOR -> LST_LIST
- LST_QUATERNION -> LST_LIST
- LST_LIST -> LST_LIST
- */
- #endif