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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* Mesa 3-D graphics library
* Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul All Rights Reserved.
*
* 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
* BRIAN PAUL 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 SLANG_COMPILE_OPERATION_H
#define SLANG_COMPILE_OPERATION_H
#if defined __cplusplus
extern "C" {
#endif
/**
* Types of slang operations.
* These are the types of the AST (abstract syntax tree) nodes.
* [foo] indicates a sub-tree or reference to another type of node
*/
typedef enum slang_operation_type_
{
slang_oper_none,
slang_oper_block_no_new_scope, /* "{" sequence "}" */
slang_oper_block_new_scope, /* "{" sequence "}" */
slang_oper_variable_decl, /* [type] [var] or [var] = [expr] */
slang_oper_asm,
slang_oper_break, /* "break" statement */
slang_oper_continue, /* "continue" statement */
slang_oper_discard, /* "discard" (kill fragment) statement */
slang_oper_return, /* "return" [expr] */
slang_oper_expression, /* [expr] */
slang_oper_if, /* "if" [0] then [1] else [2] */
slang_oper_while, /* "while" [cond] [body] */
slang_oper_do, /* "do" [body] "while" [cond] */
slang_oper_for, /* "for" [init] [while] [incr] [body] */
slang_oper_void, /* nop */
slang_oper_literal_bool, /* "true" or "false" */
slang_oper_literal_int, /* integer literal */
slang_oper_literal_float, /* float literal */
slang_oper_identifier, /* var name, func name, etc */
slang_oper_sequence, /* [expr] "," [expr] "," etc */
slang_oper_assign, /* [var] "=" [expr] */
slang_oper_addassign, /* [var] "+=" [expr] */
slang_oper_subassign, /* [var] "-=" [expr] */
slang_oper_mulassign, /* [var] "*=" [expr] */
slang_oper_divassign, /* [var] "/=" [expr] */
/*slang_oper_modassign, */
/*slang_oper_lshassign, */
/*slang_oper_rshassign, */
/*slang_oper_orassign, */
/*slang_oper_xorassign, */
/*slang_oper_andassign, */
slang_oper_select, /* [expr] "?" [expr] ":" [expr] */
slang_oper_logicalor, /* [expr] "||" [expr] */
slang_oper_logicalxor, /* [expr] "^^" [expr] */
slang_oper_logicaland, /* [expr] "&&" [expr] */
/*slang_oper_bitor, */
/*slang_oper_bitxor, */
/*slang_oper_bitand, */
slang_oper_equal, /* [expr] "==" [expr] */
slang_oper_notequal, /* [expr] "!=" [expr] */
slang_oper_less, /* [expr] "<" [expr] */
slang_oper_greater, /* [expr] ">" [expr] */
slang_oper_lessequal, /* [expr] "<=" [expr] */
slang_oper_greaterequal, /* [expr] ">=" [expr] */
/*slang_oper_lshift, */
/*slang_oper_rshift, */
slang_oper_add, /* [expr] "+" [expr] */
slang_oper_subtract, /* [expr] "-" [expr] */
slang_oper_multiply, /* [expr] "*" [expr] */
slang_oper_divide, /* [expr] "/" [expr] */
/*slang_oper_modulus, */
slang_oper_preincrement, /* "++" [var] */
slang_oper_predecrement, /* "--" [var] */
slang_oper_plus, /* "-" [expr] */
slang_oper_minus, /* "+" [expr] */
/*slang_oper_complement, */
slang_oper_not, /* "!" [expr] */
slang_oper_subscript, /* [expr] "[" [expr] "]" */
slang_oper_call, /* [func name] [param] [param] [...] */
slang_oper_field, /* i.e.: ".next" or ".xzy" or ".xxx" etc */
slang_oper_postincrement, /* [var] "++" */
slang_oper_postdecrement /* [var] "--" */
} slang_operation_type;
/**
* A slang_operation is basically a compiled instruction (such as assignment,
* a while-loop, a conditional, a multiply, a function call, etc).
* The AST (abstract syntax tree) is built from these nodes.
* NOTE: This structure could have been implemented as a union of simpler
* structs which would correspond to the operation types above.
*/
typedef struct slang_operation_
{
slang_operation_type type;
struct slang_operation_ *children;
GLuint num_children;
GLfloat literal; /**< Used for float, int and bool values */
slang_atom a_id; /**< type: asm, identifier, call, field */
slang_variable_scope *locals; /**< local vars for scope */
} slang_operation;
extern GLboolean
slang_operation_construct(slang_operation *);
extern void
slang_operation_destruct(slang_operation *);
extern GLboolean
slang_operation_copy(slang_operation *, const slang_operation *);
extern slang_operation *
slang_operation_new(GLuint count);
#ifdef __cplusplus
}
#endif
#endif /* SLANG_COMPILE_OPERATION_H */
|
