diff options
author | 2015-12-08 15:45:58 -0700 | |
---|---|---|
committer | 2015-12-08 15:47:27 -0700 | |
commit | cb9cadad578297ffd78fa8a33670bdf1ab669e7e (patch) | |
tree | 6ac2be912482cc7849a26f0ab845561c3d7f4e26 /vppapigen/gram.y | |
parent | fb0815d4ae4bb0fe27bd9313f34b45c8593b907e (diff) |
Initial commit of vpp code.
Change-Id: Ib246f1fbfce93274020ee93ce461e3d8bd8b9f17
Signed-off-by: Ed Warnicke <eaw@cisco.com>
Diffstat (limited to 'vppapigen/gram.y')
-rw-r--r-- | vppapigen/gram.y | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/vppapigen/gram.y b/vppapigen/gram.y new file mode 100644 index 00000000..09e20067 --- /dev/null +++ b/vppapigen/gram.y @@ -0,0 +1,89 @@ +%{ +/* + * gram.y - message definition language + * + * Copyright (c) 2009 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +extern void yyerror (char *s); +extern int yylex (void); + +#define YYSTYPE void * + +void generate (YYSTYPE); + YYSTYPE add_slist(YYSTYPE, YYSTYPE); + YYSTYPE add_define(YYSTYPE, YYSTYPE); + YYSTYPE suppress_version(void); + YYSTYPE add_defbody(YYSTYPE, YYSTYPE); + YYSTYPE add_primtype(YYSTYPE, YYSTYPE, YYSTYPE); + YYSTYPE add_complex(YYSTYPE, YYSTYPE); + YYSTYPE add_union(YYSTYPE, YYSTYPE); + YYSTYPE add_scalar_vbl(YYSTYPE); + YYSTYPE add_vector_vbl(YYSTYPE, YYSTYPE); + YYSTYPE set_flags(YYSTYPE, YYSTYPE); +%} + +%token NAME RPAR LPAR SEMI LBRACK RBRACK NUMBER PRIMTYPE BARF +%token TPACKED DEFINE LCURLY RCURLY STRING UNION +%token HELPER_STRING COMMA +%token NOVERSION MANUAL_PRINT MANUAL_ENDIAN MANUAL_JAVA TYPEONLY DONT_TRACE + +%% + +pgm: slist {generate ($1);} + ; + +slist: slist stmt {$$ = add_slist ($1, $2);} + | stmt {$$ = $1;} + ; + +stmt: flist defn {$$ = set_flags($1, $2);} + | defn {$$ = $1;} + ; + +flist: flist flag {$$ = (YYSTYPE)(unsigned long long) + ((unsigned long long) $1 + | (unsigned long long) $2);} + | flag {$$ = $1;} + ; + +flag: + MANUAL_PRINT {$$ = $1;} + | MANUAL_ENDIAN {$$ = $1;} + | MANUAL_JAVA {$$ = $1;} + | DONT_TRACE {$$ = $1;} + | TYPEONLY {$$ = $1;} + ; + +defn: DEFINE NAME LCURLY defbody RCURLY SEMI + {$$ = add_define($2, $4);} + + | NOVERSION SEMI + {$$ = suppress_version();} + ; + +defbody: defbody onedef {$$ = add_defbody($1, $2);} + | onedef {$$ = $1;} + ; + +onedef: PRIMTYPE vbl SEMI {$$ = add_primtype($1, $2, 0);} + | TPACKED PRIMTYPE vbl SEMI {$$ = add_primtype($1, $2, $3);} + | NAME vbl SEMI {$$ = add_complex($1, $2);} + | UNION NAME LCURLY defbody RCURLY SEMI + {$$ = add_union($2, $4);} + ; + +vbl: NAME {$$ = add_scalar_vbl($1);} + | NAME LBRACK NUMBER RBRACK {$$ = add_vector_vbl($1, $3);} + ; |