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ABRAXAS SOFTWARE - YACC TOOL
Welcome to use ytool TOOL
This file describes how to use YACC TOOL briefly. This tool is
writen in MS C,if you want to use Turbo C,you can simply replace
"#include " with "#include ",then compile with
TURBO C.The project file for TURBO C is as next:
ytool.c
token.c
param.h
YACC TOOL offers you next functions:
a. Create GRAMMAR FOREST from ytool source file
b. Create GRAMMAR FOREST with rule & line number (1)
c. Create GRAMMAR FOREST with rule & line number (2)
d. Create GRAMMAR FOREST with rule & line number (3)
e. Cross Reference Table of the rule in the rule appearing order
f. Cross Reference Table of the rule in the order of alpha
g. Cross Reference Table of the rule in nonterminal appearing order
h. Grammar Description File with line number
The results of these functions just like next:
a. Create GRAMMAR FOREST from ytool source file
Command line: ytool cpp.y a >temp
The content of temp is:
--------------------------------------------------------------------------------
Grammar Forest
--------------------------------------------------------------------------------
program : .program
| .program extdefs
;
.program :
;
extdefs : extdef
| extdefs extdef
;
extdef : fndef
| datadef
| overloaddef
| ASM '(' string ')' ';'
| extern_lang_string '{' extdefs '}'
| extern_lang_string '{' '}'
| extern_lang_string fndef
| extern_lang_string datadef
;
extern_lang_string: EXTERN_LANG_STRING
;
overloaddef : OVERLOAD ov_identifiers ';'
;
.
.
.
b. Create GRAMMAR FOREST with rule & line number (1)
Command line: ytool cpp.y b >temp
The content of temp is:
--------------------------------------------------------------------------------
Grammar Forest With Rule Number & Line Number (FORM 1)
--------------------------------------------------------------------------------
.................................................
.+-----The rule number . <== This comment is
.| . added by W.H.Wang
.| .
.| +-- The line number of this rule in GDF's .
.| | .
.| | .
.V V .
.................................................
[1 ,223 ]
program : .program
| .program extdefs
;
[3 ,228 ]
.program :
;
[4 ,238 ]
extdefs : extdef
| extdefs extdef
;
[6 ,243 ]
extdef : fndef
| datadef
| overloaddef
| ASM '(' string ')' ';'
| extern_lang_string '{' extdefs '}'
| extern_lang_string '{' '}'
| extern_lang_string fndef
| extern_lang_string datadef
;
[14 ,266 ]
extern_lang_string: EXTERN_LANG_STRING
;
[15 ,271 ]
overloaddef : OVERLOAD ov_identifiers ';'
;
.
.
.
c. Create GRAMMAR FOREST with rule & line number (2)
Command line: ytool cpp.y c >temp
The content of temp is:
--------------------------------------------------------------------------------
Grammar Forest With Rule Number & Line Number (FORM 2)
--------------------------------------------------------------------------------
.................................................
. .
.+-----The rule number .
.| .
.| .
.| +-- The line number of this rule in GDF's .
.| | .
.| | .
.V V .
.................................................
[1 ,223 ]
program : .program
[2 ] | .program extdefs
.................................................
.^ .
.| .
.| .
.+----The rule number .
.................................................
;
[3 ,228 ]
.program :
;
[4 ,238 ]
extdefs : extdef
[5 ] | extdefs extdef
;
[6 ,243 ]
extdef : fndef
[7 ] | datadef
[8 ] | overloaddef
[9 ] | ASM '(' string ')' ';'
[10 ] | extern_lang_string '{' extdefs '}'
[11 ] | extern_lang_string '{' '}'
[12 ] | extern_lang_string fndef
[13 ] | extern_lang_string datadef
;
[14 ,266 ]
extern_lang_string: EXTERN_LANG_STRING
;
[15 ,271 ]
overloaddef : OVERLOAD ov_identifiers ';'
;
[16 ,274 ]
ov_identifiers : IDENTIFIER
[17 ] | ov_identifiers ',' IDENTIFIER
;
.
.
.
d. Create GRAMMAR FOREST with rule & line number (3)
Command line: ytool cpp.y d >temp
The content of temp is:
--------------------------------------------------------------------------------
Grammar Forest With Rule Number & Line Number (FORM 3)
--------------------------------------------------------------------------------
.................................................
.+-----The rule number .
.| .
.| .
.| +-- The line number of this rule in GDF's .
.| | .
.| | .
.V V .
.................................................
[1 ,223 ]
program : .program[*3]
[2 ] | .program[*3] extdefs[*4]
.................................................
.^ ^ ^ .
.| | | .
.| | | .
.+---- The rule number ---+-----------+ .
.................................................
;
[3 ,228 ]
.program :
;
[4 ,238 ]
extdefs : extdef[*6]
[5 ] | extdefs[*4] extdef[*6]
;
[6 ,243 ]
extdef : fndef[*29]
[7 ] | datadef[*19]
[8 ] | overloaddef[*15]
[9 ] | ASM '(' string[*179] ')' ';'
[10 ] | extern_lang_string[*14] '{' extdefs[*4] '}'
[11 ] | extern_lang_string[*14] '{' '}'
[12 ] | extern_lang_string[*14] fndef[*29]
[13 ] | extern_lang_string[*14] datadef[*19]
;
[14 ,266 ]
extern_lang_string: EXTERN_LANG_STRING
;
[15 ,271 ]
overloaddef : OVERLOAD ov_identifiers[*16] ';'
;
[16 ,274 ]
ov_identifiers : IDENTIFIER
[17 ] | ov_identifiers[*16] ',' IDENTIFIER
;
.
.
.
e. Cross Reference Table of the rule in the rule appearing order
Command line: ytool cpp.y e >temp
The content of temp is:
=========== CROSS REFERENCE TABLE (1) ===========
RUEL_No.| LINE_No.| SYMBOL
--------------------------------------------------
1 | 223 | program
3 | 228 | .program
4 | 238 | extdefs
6 | 243 | extdef
29 | 323 | fndef
19 | 284 | datadef
15 | 271 | overloaddef
179 | 1183 | string
14 | 266 | extern_lang_string
16 | 274 | ov_identifiers
18 | 280 | dummy_decl
225 | 1378 | notype_initdecls
200 | 1296 | declmods
190 | 1260 | declarator
192 | 1269 | typed_declspecs
223 | 1373 | initdecls
37 | 362 | fn.def1
54 | 498 | base_init
418 | 2112 | compstmt_or_error
51 | 457 | return_init
181 | 1189 | nodecls
367 | 1962 | notype_declarator
502 | 2834 | maybe_raises
481 | 2728 | parmlist
337 | 1877 | type_quals
43 | 389 | fn.def2
50 | 449 | return_id
500 | 2827 | opt.init
87 | 683 | nonnull_exprlist
55 | 507 | .set_base_init
56 | 536 | member_init_list
60 | 547 | member_init
66 | 618 | identifier
390 | 2028 | scoped_identifier
68 | 623 | identifier_or_opname
513 | 2866 | operator_name
77 | 644 | wrapper
80 | 652 | unop
85 | 664 | expr
110 | 834 | expr_no_commas
90 | 692 | unary_expr
134 | 891 | primary
107 | 812 | cast_expr
331 | 1857 | typename
175 | 1166 | .scope
171 | 1156 | new
218 | 1356 | x_typespec
244 | 1479 | init
177 | 1173 | delete
249 | 1498 | initlist
259 | 1562 | maybecomma
471 | 2690 | xexpr
182 | 1198 | object
161 | 1120 | primary_no_id
420 | 2118 | compstmt
184 | 1223 | decl
340 | 1894 | after_type_declarator
210 | 1336 | typespec
196 | 1280 | reserved_declspecs
215 | 1351 | typespecqual_reserved
204 | 1314 | typed_typespecs
335 | 1870 | nonempty_type_quals
208 | 1325 | reserved_typespecquals
251 | 1505 | structsp
229 | 1394 | initdcl0
231 | 1411 | initdcl
233 | 1422 | notype_initdcl0
227 | 1383 | maybeasm
235 | 1441 | maybe_attribute
237 | 1448 | attribute_list
239 | 1453 | attrib
242 | 1472 | identifiers
327 | 1844 | enumlist
261 | 1567 | maybecomma_warn
270 | 1592 | class_head
285 | 1653 | LC
286 | 1666 | opt.component_decl_list
263 | 1573 | aggr
275 | 1606 | base_class_list
279 | 1625 | base_class_visibility_list
294 | 1682 | component_decl_list
297 | 1693 | component_decl
316 | 1799 | components
319 | 1814 | component_declarator0
323 | 1829 | component_declarator
329 | 1850 | enumerator
333 | 1864 | absdcl
393 | 2035 | absdcl1
339 | 1888 | nonmomentary_expr
355 | 1929 | after_type_declarator_no_typename
496 | 2805 | see_typename
413 | 2087 | stmts
424 | 2144 | stmt
416 | 2093 | errstmt
417 | 2100 | .pushlevel
423 | 2135 | simple_if
462 | 2657 | forhead.1
465 | 2666 | forhead.2
469 | 2679 | maybe_type_qual
474 | 2700 | asm_operands
479 | 2716 | asm_clobbers
504 | 2841 | raise_identifier
455 | 2565 | try
459 | 2581 | except_stmts
511 | 2857 | raise_identifiers
458 | 2579 | try_head
476 | 2705 | nonnull_asm_operands
478 | 2711 | asm_operand
489 | 2779 | parms
492 | 2790 | parm
498 | 2813 | bad_parm
497 | 2809 | dont_see_typename
--------------------------------------------------
f. Cross Reference Table of the rule in the order of alpha
Command line: ytool cpp.y f >temp
The content of temp is:
=========== CROSS REFERENCE TABLE (2) ===========
RUEL_No.| LINE_No.| SYMBOL
--------------------------------------------------
3 | 228 | .program
417 | 2100 | .pushlevel
175 | 1166 | .scope
55 | 507 | .set_base_init
285 | 1653 | LC
333 | 1864 | absdcl
393 | 2035 | absdcl1
340 | 1894 | after_type_declarator
355 | 1929 | after_type_declarator_no_typename
263 | 1573 | aggr
479 | 2716 | asm_clobbers
478 | 2711 | asm_operand
474 | 2700 | asm_operands
239 | 1453 | attrib
237 | 1448 | attribute_list
498 | 2813 | bad_parm
275 | 1606 | base_class_list
279 | 1625 | base_class_visibility_list
54 | 498 | base_init
107 | 812 | cast_expr
270 | 1592 | class_head
297 | 1693 | component_decl
294 | 1682 | component_decl_list
323 | 1829 | component_declarator
319 | 1814 | component_declarator0
316 | 1799 | components
420 | 2118 | compstmt
418 | 2112 | compstmt_or_error
19 | 284 | datadef
184 | 1223 | decl
190 | 1260 | declarator
200 | 1296 | declmods
177 | 1173 | delete
497 | 2809 | dont_see_typename
18 | 280 | dummy_decl
329 | 1850 | enumerator
327 | 1844 | enumlist
416 | 2093 | errstmt
459 | 2581 | except_stmts
85 | 664 | expr
110 | 834 | expr_no_commas
6 | 243 | extdef
4 | 238 | extdefs
14 | 266 | extern_lang_string
37 | 362 | fn.def1
43 | 389 | fn.def2
29 | 323 | fndef
462 | 2657 | forhead.1
465 | 2666 | forhead.2
66 | 618 | identifier
68 | 623 | identifier_or_opname
242 | 1472 | identifiers
244 | 1479 | init
231 | 1411 | initdcl
229 | 1394 | initdcl0
223 | 1373 | initdecls
249 | 1498 | initlist
235 | 1441 | maybe_attribute
502 | 2834 | maybe_raises
469 | 2679 | maybe_type_qual
227 | 1383 | maybeasm
259 | 1562 | maybecomma
261 | 1567 | maybecomma_warn
60 | 547 | member_init
56 | 536 | member_init_list
171 | 1156 | new
181 | 1189 | nodecls
335 | 1870 | nonempty_type_quals
339 | 1888 | nonmomentary_expr
476 | 2705 | nonnull_asm_operands
87 | 683 | nonnull_exprlist
367 | 1962 | notype_declarator
233 | 1422 | notype_initdcl0
225 | 1378 | notype_initdecls
182 | 1198 | object
513 | 2866 | operator_name
286 | 1666 | opt.component_decl_list
500 | 2827 | opt.init
16 | 274 | ov_identifiers
15 | 271 | overloaddef
492 | 2790 | parm
481 | 2728 | parmlist
489 | 2779 | parms
134 | 891 | primary
161 | 1120 | primary_no_id
1 | 223 | program
504 | 2841 | raise_identifier
511 | 2857 | raise_identifiers
196 | 1280 | reserved_declspecs
208 | 1325 | reserved_typespecquals
50 | 449 | return_id
51 | 457 | return_init
390 | 2028 | scoped_identifier
496 | 2805 | see_typename
423 | 2135 | simple_if
424 | 2144 | stmt
413 | 2087 | stmts
179 | 1183 | string
251 | 1505 | structsp
455 | 2565 | try
458 | 2579 | try_head
337 | 1877 | type_quals
192 | 1269 | typed_declspecs
204 | 1314 | typed_typespecs
331 | 1857 | typename
210 | 1336 | typespec
215 | 1351 | typespecqual_reserved
90 | 692 | unary_expr
80 | 652 | unop
77 | 644 | wrapper
218 | 1356 | x_typespec
471 | 2690 | xexpr
--------------------------------------------------
g. Cross Reference Table of the rule in nonterminal appearing order
Command line: ytool cpp.y g >temp
The content of temp is:
=========== CROSS REFERENCE TABLE (3) ===========
RUEL_No.| LINE_No.| SYMBOL
--------------------------------------------------
1 | 223 | program
3 | 228 | .program
4 | 238 | extdefs
6 | 243 | extdef
14 | 266 | extern_lang_string
15 | 271 | overloaddef
16 | 274 | ov_identifiers
18 | 280 | dummy_decl
19 | 284 | datadef
29 | 323 | fndef
37 | 362 | fn.def1
43 | 389 | fn.def2
50 | 449 | return_id
51 | 457 | return_init
54 | 498 | base_init
55 | 507 | .set_base_init
56 | 536 | member_init_list
60 | 547 | member_init
66 | 618 | identifier
68 | 623 | identifier_or_opname
77 | 644 | wrapper
80 | 652 | unop
85 | 664 | expr
87 | 683 | nonnull_exprlist
90 | 692 | unary_expr
107 | 812 | cast_expr
110 | 834 | expr_no_commas
134 | 891 | primary
161 | 1120 | primary_no_id
171 | 1156 | new
175 | 1166 | .scope
177 | 1173 | delete
179 | 1183 | string
181 | 1189 | nodecls
182 | 1198 | object
184 | 1223 | decl
190 | 1260 | declarator
192 | 1269 | typed_declspecs
196 | 1280 | reserved_declspecs
200 | 1296 | declmods
204 | 1314 | typed_typespecs
208 | 1325 | reserved_typespecquals
210 | 1336 | typespec
215 | 1351 | typespecqual_reserved
218 | 1356 | x_typespec
223 | 1373 | initdecls
225 | 1378 | notype_initdecls
227 | 1383 | maybeasm
229 | 1394 | initdcl0
231 | 1411 | initdcl
233 | 1422 | notype_initdcl0
235 | 1441 | maybe_attribute
237 | 1448 | attribute_list
239 | 1453 | attrib
242 | 1472 | identifiers
244 | 1479 | init
249 | 1498 | initlist
251 | 1505 | structsp
259 | 1562 | maybecomma
261 | 1567 | maybecomma_warn
263 | 1573 | aggr
270 | 1592 | class_head
275 | 1606 | base_class_list
279 | 1625 | base_class_visibility_list
285 | 1653 | LC
286 | 1666 | opt.component_decl_list
294 | 1682 | component_decl_list
297 | 1693 | component_decl
316 | 1799 | components
319 | 1814 | component_declarator0
323 | 1829 | component_declarator
327 | 1844 | enumlist
329 | 1850 | enumerator
331 | 1857 | typename
333 | 1864 | absdcl
335 | 1870 | nonempty_type_quals
337 | 1877 | type_quals
339 | 1888 | nonmomentary_expr
340 | 1894 | after_type_declarator
355 | 1929 | after_type_declarator_no_typename
367 | 1962 | notype_declarator
390 | 2028 | scoped_identifier
393 | 2035 | absdcl1
413 | 2087 | stmts
416 | 2093 | errstmt
417 | 2100 | .pushlevel
418 | 2112 | compstmt_or_error
420 | 2118 | compstmt
423 | 2135 | simple_if
424 | 2144 | stmt
455 | 2565 | try
458 | 2579 | try_head
459 | 2581 | except_stmts
462 | 2657 | forhead.1
465 | 2666 | forhead.2
469 | 2679 | maybe_type_qual
471 | 2690 | xexpr
474 | 2700 | asm_operands
476 | 2705 | nonnull_asm_operands
478 | 2711 | asm_operand
479 | 2716 | asm_clobbers
481 | 2728 | parmlist
489 | 2779 | parms
492 | 2790 | parm
496 | 2805 | see_typename
497 | 2809 | dont_see_typename
498 | 2813 | bad_parm
500 | 2827 | opt.init
502 | 2834 | maybe_raises
504 | 2841 | raise_identifier
511 | 2857 | raise_identifiers
513 | 2866 | operator_name
--------------------------------------------------
h. Grammar Description File with line number
Command line: ytool cpp.y h >temp
The content of temp is:
1 :
2 : /* yacc parser for C++ syntax.
3 : Copyright (C) 1988, 1989 Free Software Foundation, Inc.
4 : Hacked by Michael Tiemann (tiemann@mcc.com)
5 :
6 : This file is part of GNU CC.
7 :
8 : GNU CC is free software; you can redistribute it and/or modify
9 : it under the terms of the GNU General Public License as published by
10 : the Free Software Foundation; either version 1, or (at your option)
11 : any later version.
12 :
13 : GNU CC is distributed in the hope that it will be useful,
14 : but WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 : GNU General Public License for more details.
17 :
18 : You should have received a copy of the GNU General Public License
19 : along with GNU CC; see the file COPYING. If not, write to
20 : the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 :
22 :
23 : /* This grammar is based on the GNU CC grammar. */
24 :
25 : /* Also note: this version contains experimental exception
26 : handling features. They could break, change, disappear,
27 : or otherwise exhibit volatile behavior. Don't depend on
28 : me (Michael Tiemann) to protect you from any negative impact
29 : this may have on your professional, personal, or spiritual life. */
30 :
31 : %{
32 : #include "config.h"
33 : #include "tree.h"
34 : #include "input.h"
35 : #include "cplus-parse.h"
36 : #include "cplus-tree.h"
37 : #include "assert.h"
38 :
39 : /* C++ extensions */
40 : extern tree ridpointers[]; /* need this up here */
41 : extern tree void_list_node;
42 :
43 : #include
44 : #include
45 :
46 : #ifndef errno
47 : extern int errno;
48 : #endif
49 :
50 : extern int end_of_file;
51 :
52 : void yyerror ();
53 :
54 : /* Contains error message to give if user tries to declare
55 : a variable where one does not belong. */
56 : static char *stmt_decl_msg = 0;
57 :
58 : #ifndef YYDEBUG
59 : /* Cause the `yydebug' variable to be defined. */
60 : int yydebug;
61 : #endif
62 :
63 : /* Cons up an empty parameter list. */
64 : #ifdef __GNU__
65 : __inline
66 : #endif
67 : static tree
68 : empty_parms ()
69 : {
70 : tree parms;
71 :
72 : if (strict_prototype)
73 : parms = void_list_node;
74 : else
75 : parms = NULL_TREE;
76 : return parms;
77 : }
78 :
79 : void yyhook ();
80 : %}
81 :
82 : %start program
83 :
84 : %union {long itype; tree ttype; enum tree_code code; }
85 :
86 : /* All identifiers that are not reserved words
87 : and are not declared typedefs in the current block */
88 : %token IDENTIFIER
89 :
90 : /* All identifiers that are declared typedefs in the current block.
91 : In some contexts, they are treated just like IDENTIFIER,
92 : but they can also serve as typespecs in declarations. */
93 : %token TYPENAME
94 :
95 : /* Reserved words that specify storage class.
96 : yylval contains an IDENTIFIER_NODE which indicates which one. */
97 : %token SCSPEC
98 :
99 : /* Reserved words that specify type.
100 : yylval contains an IDENTIFIER_NODE which indicates which one. */
101 : %token TYPESPEC
102 :
103 : /* Reserved words that qualify type: "const" or "volatile".
104 : yylval contains an IDENTIFIER_NODE which indicates which one. */
105 : %token TYPE_QUAL
106 :
107 : /* Character or numeric constants.
108 : yylval is the node for the constant. */
109 : %token CONSTANT
110 :
111 : /* String constants in raw form.
112 : yylval is a STRING_CST node. */
113 : %token STRING
114 :
115 : /* "...", used for functions with variable arglists. */
116 : %token ELLIPSIS
117 :
118 : /* the reserved words */
119 : %token SIZEOF ENUM /* STRUCT UNION */ IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
120 : %token BREAK CONTINUE RETURN GOTO ASM TYPEOF ALIGNOF
121 : %token ATTRIBUTE
122 :
123 : /* the reserved words... C++ extensions */
124 : %token AGGR
125 : %token DELETE NEW OVERLOAD PRIVATE PUBLIC PROTECTED THIS OPERATOR
126 : %token DYNAMIC POINTSAT_LEFT_RIGHT LEFT_RIGHT
127 : %token SCOPE
128 :
129 : /* Define the operator tokens and their precedences.
130 : The value is an integer because, if used, it is the tree code
131 : to use in the expression made from the operator. */
132 :
133 : %left EMPTY /* used to resolve s/r with epsilon */
134 :
135 : /* Add precedence rules to solve dangling else s/r conflict */
136 : %nonassoc IF
137 : %nonassoc ELSE
138 :
139 : %left IDENTIFIER TYPENAME TYPENAME_COLON SCSPEC TYPESPEC TYPE_QUAL ENUM AGGR
140 :
141 : %left '{' ','
142 :
143 : %right ASSIGN '='
144 : %right '?' ':' RANGE
145 : %left OROR
146 : %left ANDAND
147 : %left '|'
148 : %left '^'
149 : %left '&'
150 : %left MIN_MAX
151 : %left EQCOMPARE
152 : %left ARITHCOMPARE
153 : %left LSHIFT RSHIFT
154 : %left '+' '-'
155 : %left '*' '/' '%'
156 : %right UNARY PLUSPLUS MINUSMINUS
157 : %left HYPERUNARY
158 : %left PAREN_STAR_PAREN PAREN_X_SCOPE_STAR_PAREN PAREN_X_SCOPE_REF_PAREN LEFT_RIGHT
159 : %left POINTSAT '.' '(' '['
160 :
161 : %right SCOPE /* C++ extension */
162 : %nonassoc NEW DELETE RAISE RAISES RERAISE TRY EXCEPT CATCH
163 : %right DYNAMIC
164 :
165 : %type unop
166 :
167 : %type identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist /* exprlist */
168 : %type expr_no_commas cast_expr unary_expr primary string STRING
169 : %type typed_declspecs reserved_declspecs
170 : %type typed_typespecs reserved_typespecquals
171 : %type declmods typespec typespecqual_reserved
172 : %type SCSPEC TYPESPEC TYPE_QUAL nonempty_type_quals maybe_type_qual
173 : %type initdecls notype_initdecls initdcl /* C++ modification */
174 : %type init initlist maybeasm
175 : %type asm_operands nonnull_asm_operands asm_operand asm_clobbers
176 : %type maybe_attribute attribute_list attrib
177 :
178 : %type compstmt except_stmts
179 :
180 : %type declarator notype_declarator after_type_declarator
181 :
182 : %type structsp opt.component_decl_list component_decl_list component_decl components component_declarator
183 : %type enumlist enumerator
184 : %type typename absdcl absdcl1 type_quals
185 : %type xexpr see_typename parmlist parms parm bad_parm
186 :
187 : /* C++ extensions */
188 : %token TYPENAME_COLON TYPENAME_SCOPE TYPENAME_ELLIPSIS
189 : %token PRE_PARSED_FUNCTION_DECL EXTERN_LANG_STRING ALL
190 : %type fn.def2 dummy_decl x_typespec return_id
191 : %type class_head opt.init base_class_list base_class_visibility_list
192 : %type after_type_declarator_no_typename
193 : %type maybe_raises raise_identifier raise_identifiers
194 : %type component_declarator0 scoped_identifier
195 : %type forhead.1 identifier_or_opname operator_name
196 : %type new delete object primary_no_id aggr nonmomentary_expr
197 : %type LC forhead.2 initdcl0 notype_initdcl0 wrapper member_init_list
198 : %type .scope try
199 :
200 : %{
201 : /* the declaration found for the last IDENTIFIER token read in.
202 : yylex must look this up to detect typedefs, which get token type TYPENAME,
203 : so it is left around in case the identifier is not a typedef but is
204 : used in a context which makes it a reference to a variable. */
205 : tree lastiddecl;
206 :
207 : tree make_pointer_declarator (), make_reference_declarator ();
208 :
209 : tree combine_strings ();
210 : void reinit_parse_for_function ();
211 : void reinit_parse_for_method ();
212 :
213 : /* List of types and structure classes of the current declaration. */
214 : tree current_declspecs;
215 :
216 : int undeclared_variable_notice; /* 1 if we explained undeclared var errors. */
217 :
218 : int yylex ();
219 : extern FILE *finput;
220 : %}
221 :
222 : %%
223 : program: .program /* empty */
224 : | .program extdefs
225 : { finish_file (); }
226 : ;
227 :
228 : .program: /* empty */
229 : {
230 : if (flag_cadillac)
231 : cadillac_start ();
232 : }
233 :
234 : /* the reason for the strange actions in this rule
235 : is so that notype_initdecls when reached via datadef
236 : can find a valid list of type and sc specs in src/ytool.pl. */
237 :
238 : extdefs:
239 : {0ttype>60 NULL_TREE; } extdef
240 : | extdefs {0ttype>60 NULL_TREE; } extdef
241 : ;
242 :
243 : extdef:
244 : fndef
245 : { if (pending_inlines) do_pending_inlines (); }
246 : | datadef
247 : { if (pending_inlines) do_pending_inlines (); }
248 : | overloaddef
249 : | ASM '(' string ')' ';'
250 : { if (pedantic)
251 : warning ("ANSI C forbids use of `asm' keyword");
252 : if (TREE_CHAIN ()) = combine_strings ();
253 : assemble_asm (); }
254 : | extern_lang_string '{' extdefs '}'
255 : { pop_lang_context (); }
256 : | extern_lang_string '{' '}'
257 : { pop_lang_context (); }
258 : | extern_lang_string fndef
259 : { if (pending_inlines) do_pending_inlines ();
260 : pop_lang_context (); }
261 : | extern_lang_string datadef
262 : { if (pending_inlines) do_pending_inlines ();
263 : pop_lang_context (); }
264 : ;
265 :
266 : extern_lang_string:
267 : EXTERN_LANG_STRING
268 : { push_lang_context (); }
269 : ;
270 :
271 : overloaddef:
272 : OVERLOAD ov_identifiers ';'
273 :
274 : ov_identifiers: IDENTIFIER
275 : { declare_overloaded (); }
276 : | ov_identifiers ',' IDENTIFIER
277 : { declare_overloaded (); }
278 : ;
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