1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/**
* @file lscript_typecheck.h
* @brief typechecks script
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2009, 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
|
