xref: /illumos-gate/usr/src/tools/ndrgen/ndr_parse.y (revision b6c3f786)
1 %{
2 /*
3  * CDDL HEADER START
4  *
5  * The contents of this file are subject to the terms of the
6  * Common Development and Distribution License (the "License").
7  * You may not use this file except in compliance with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 /*
24  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 #pragma ident	"%Z%%M%	%I%	%E% SMI"
29 
30 #include "ndrgen.h"
31 
32 typedef struct node *node_ptr;
33 #define YYSTYPE node_ptr
34 %}
35 
36 /* keywords */
37 %token STRUCT_KW UNION_KW TYPEDEF_KW
38 
39 /* advice keywords */
40 %token ALIGN_KW OPERATION_KW IN_KW OUT_KW
41 %token INTERFACE_KW UUID_KW _NO_REORDER_KW EXTERN_KW
42 %token SIZE_IS_KW LENGTH_IS_KW STRING_KW REFERENCE_KW
43 %token CASE_KW DEFAULT_KW SWITCH_IS_KW
44 %token TRANSMIT_AS_KW ARG_IS_KW
45 
46 /* composite keywords */
47 %token BASIC_TYPE TYPENAME
48 
49 /* symbols and punctuation */
50 %token IDENTIFIER INTEGER STRING
51 %token LC RC SEMI STAR LB RB LP RP
52 
53 
54 %token L_MEMBER
55 
56 
57 %%
58 
59 defn	:	/* empty */
60 	|	construct_list	={ construct_list = (struct node *)$1; }
61 	;
62 
63 construct_list:	construct
64 	|	construct_list construct ={ n_splice ($1,$2); }
65 	;
66 
67 construct:	struct
68 	|	union
69 	|	typedef
70 	;
71 
72 struct	:	advice STRUCT_KW typename LC members RC SEMI
73 		={ $$ = n_cons (STRUCT_KW, $1, $3, $5);
74 		   construct_fixup ($$);
75 		}
76 	;
77 
78 union	:	advice UNION_KW typename LC members RC SEMI
79 		={ $$ = n_cons (UNION_KW, $1, $3, $5);
80 		   construct_fixup ($$);
81 		}
82 	;
83 
84 typedef	:	TYPEDEF_KW member
85 		={ $$ = n_cons (TYPEDEF_KW, 0, $2->n_m_name, $2);
86 		   construct_fixup ($$);
87 		}
88 	;
89 
90 members	:	member
91 	|	members member		 ={ n_splice ($1,$2); }
92 	;
93 
94 member	:	advice type declarator SEMI
95 		={ $$ = n_cons (L_MEMBER, $1, $2, $3);
96 		   member_fixup ($$);
97 		}
98 	;
99 
100 advice	:	/* empty */		={ $$ = 0; }
101 	|	adv_list
102 	;
103 
104 adv_list:	LB adv_attrs RB		={ $$ = $2; }
105 	|	adv_list LB adv_attrs RB ={ n_splice ($1,$3); }
106 	;
107 
108 adv_attrs:	adv_attr
109 	|	adv_attr adv_attr	={ n_splice ($1,$2); }
110 	;
111 
112 adv_attr:	IN_KW			={ $$ = n_cons (IN_KW); }
113 	|	OUT_KW			={ $$ = n_cons (OUT_KW); }
114 	|	OPERATION_KW LP arg RP	={ $$ = n_cons (OPERATION_KW, $3); }
115 	|	ALIGN_KW LP arg RP	={ $$ = n_cons (ALIGN_KW, $3); }
116 
117 	|	STRING_KW		={ $$ = n_cons (STRING_KW); }
118 	|	SIZE_IS_KW LP arg RP	={ $$ = n_cons (SIZE_IS_KW, $3); }
119 	|	LENGTH_IS_KW LP arg RP	={ $$ = n_cons (LENGTH_IS_KW, $3); }
120 
121 	|	SWITCH_IS_KW LP arg RP	={ $$ = n_cons (SWITCH_IS_KW, $3); }
122 	|	CASE_KW LP arg RP	={ $$ = n_cons (CASE_KW, $3); }
123 	|	DEFAULT_KW		={ $$ = n_cons (DEFAULT_KW); }
124 
125 	|	ARG_IS_KW LP arg RP	={ $$ = n_cons (ARG_IS_KW, $3); }
126 	|	TRANSMIT_AS_KW LP BASIC_TYPE RP
127 					={ $$ = n_cons (TRANSMIT_AS_KW, $3); }
128 
129 	|	INTERFACE_KW LP arg RP	={ $$ = n_cons (INTERFACE_KW, $3); }
130 	|	UUID_KW LP arg RP	={ $$ = n_cons (UUID_KW, $3); }
131 	|	_NO_REORDER_KW		={ $$ = n_cons (_NO_REORDER_KW); }
132 	|	EXTERN_KW		={ $$ = n_cons (EXTERN_KW); }
133 	|	REFERENCE_KW		={ $$ = n_cons (REFERENCE_KW); }
134 	;
135 
136 arg	:	IDENTIFIER
137 	|	INTEGER
138 	|	STRING
139 	;
140 
141 type	:	BASIC_TYPE
142 	|	typename
143 	|	STRUCT_KW typename	={ $$ = $2; }
144 	|	UNION_KW  typename	={ $$ = $2; }
145 	;
146 
147 typename:	TYPENAME
148 	|	IDENTIFIER
149 	;
150 
151 declarator:	decl1
152 	;
153 
154 decl1	:	decl2
155 	|	STAR decl1		={ $$ = n_cons (STAR, $2); }
156 	;
157 
158 decl2	:	decl3
159 	|	decl3 LB RB		={ $$ = n_cons (LB, $1, 0); }
160 	|	decl3 LB STAR RB	={ $$ = n_cons (LB, $1, 0); }
161 	|	decl3 LB INTEGER RB	={ $$ = n_cons (LB, $1, $3); }
162 	;
163 
164 decl3	:	IDENTIFIER
165 	|	LP decl1 RP		={ $$ = n_cons (LP, $2); }
166 	;
167 
168 
169 
170 %%
171