Will McVicker | d7d18df | 2019-09-12 13:40:50 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 17 | %{ |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 18 | #include <string.h> |
| 19 | #include <stdlib.h> |
Christopher Wiley | f690be5 | 2015-09-14 15:19:10 -0700 | [diff] [blame] | 20 | |
| 21 | #include "aidl_language.h" |
Jiyong Park | e5c4529 | 2020-05-26 19:06:24 +0900 | [diff] [blame] | 22 | #include "parser.h" |
Steven Moreland | 2178081 | 2020-09-11 01:29:45 +0000 | [diff] [blame] | 23 | #include "aidl_language_y.h" |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 24 | |
Casey Dahlin | 1aa158e | 2015-09-14 15:26:57 -0700 | [diff] [blame] | 25 | #define YY_USER_ACTION yylloc->columns(yyleng); |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 26 | %} |
| 27 | |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 28 | %option noyywrap |
Steven Moreland | 1cee9db | 2018-06-28 10:37:24 -0700 | [diff] [blame] | 29 | %option nounput |
| 30 | %option noinput |
Casey Dahlin | dd69181 | 2015-09-09 17:59:06 -0700 | [diff] [blame] | 31 | %option reentrant |
| 32 | %option bison-bridge |
Casey Dahlin | fd2e08a | 2015-09-10 18:29:09 -0700 | [diff] [blame] | 33 | %option bison-locations |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 34 | |
Steven Moreland | 7e176e9 | 2019-11-10 21:00:14 -0800 | [diff] [blame] | 35 | %x LONG_COMMENT |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 36 | |
Casey Dahlin | 2b2879b | 2015-10-13 16:59:44 -0700 | [diff] [blame] | 37 | identifier [_a-zA-Z][_a-zA-Z0-9]* |
Casey Dahlin | 1aa158e | 2015-09-14 15:26:57 -0700 | [diff] [blame] | 38 | whitespace ([ \t\r]+) |
Will McVicker | d7d18df | 2019-09-12 13:40:50 -0700 | [diff] [blame] | 39 | intvalue [0-9]+[lL]? |
Steven Moreland | cef2266 | 2020-07-08 20:54:28 +0000 | [diff] [blame] | 40 | hexvalue 0[x|X][0-9a-fA-F]+[lL]? |
Will McVicker | d7d18df | 2019-09-12 13:40:50 -0700 | [diff] [blame] | 41 | floatvalue [0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?f? |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 42 | |
| 43 | %% |
Casey Dahlin | 1aa158e | 2015-09-14 15:26:57 -0700 | [diff] [blame] | 44 | %{ |
| 45 | /* This happens at every call to yylex (every time we receive one token) */ |
Casey Dahlin | cdbbc8c | 2015-10-14 15:31:04 -0700 | [diff] [blame] | 46 | std::string extra_text; |
Casey Dahlin | 1aa158e | 2015-09-14 15:26:57 -0700 | [diff] [blame] | 47 | yylloc->step(); |
| 48 | %} |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 49 | |
Jooyung Han | 63e4a60 | 2020-10-29 17:26:22 +0900 | [diff] [blame] | 50 | \/\* { extra_text += yytext; BEGIN(LONG_COMMENT); } |
| 51 | <LONG_COMMENT>\*+\/ { extra_text += yytext; yylloc->step(); BEGIN(INITIAL); } |
Casey Dahlin | 88d0784 | 2016-01-05 11:54:40 -0800 | [diff] [blame] | 52 | <LONG_COMMENT>\*+ { extra_text += yytext; } |
| 53 | <LONG_COMMENT>\n+ { extra_text += yytext; yylloc->lines(yyleng); } |
| 54 | <LONG_COMMENT>[^*\n]+ { extra_text += yytext; } |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 55 | |
Casey Dahlin | bed1e87 | 2015-10-22 17:03:34 -0700 | [diff] [blame] | 56 | \"[^\"]*\" { yylval->token = new AidlToken(yytext, extra_text); |
| 57 | return yy::parser::token::C_STR; } |
| 58 | |
Steven Moreland | 9c2988f | 2019-07-17 17:49:10 -0700 | [diff] [blame] | 59 | \/\/.* { extra_text += yytext; extra_text += "\n"; } |
Casey Dahlin | 1aa158e | 2015-09-14 15:26:57 -0700 | [diff] [blame] | 60 | |
Casey Dahlin | 3c6df36 | 2015-10-06 15:48:35 -0700 | [diff] [blame] | 61 | \n+ { yylloc->lines(yyleng); yylloc->step(); } |
| 62 | {whitespace} {} |
| 63 | <<EOF>> { yyterminate(); } |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 64 | |
Casey Dahlin | 3c6df36 | 2015-10-06 15:48:35 -0700 | [diff] [blame] | 65 | /* symbols */ |
Will McVicker | d7d18df | 2019-09-12 13:40:50 -0700 | [diff] [blame] | 66 | "(" { return('('); } |
| 67 | ")" { return(')'); } |
| 68 | "<" { return('<'); } |
| 69 | ">" { return('>'); } |
| 70 | "{" { return('{'); } |
| 71 | "}" { return('}'); } |
| 72 | "[" { return('['); } |
| 73 | "]" { return(']'); } |
| 74 | ":" { return(':'); } |
Jooyung Han | 63e4a60 | 2020-10-29 17:26:22 +0900 | [diff] [blame] | 75 | ";" { return(';'); } |
Will McVicker | d7d18df | 2019-09-12 13:40:50 -0700 | [diff] [blame] | 76 | "," { return(','); } |
| 77 | "." { return('.'); } |
Jooyung Han | 63e4a60 | 2020-10-29 17:26:22 +0900 | [diff] [blame] | 78 | "=" { return('='); } |
| 79 | "+" { return('+'); } |
| 80 | "-" { return('-'); } |
| 81 | "*" { return('*'); } |
| 82 | "/" { return('/'); } |
| 83 | "%" { return('%'); } |
| 84 | "&" { return('&'); } |
| 85 | "|" { return('|'); } |
| 86 | "^" { return('^'); } |
| 87 | "<<" { return(yy::parser::token::LSHIFT); } |
| 88 | ">>" { return(yy::parser::token::RSHIFT); } |
| 89 | "&&" { return(yy::parser::token::LOGICAL_AND); } |
| 90 | "||" { return(yy::parser::token::LOGICAL_OR); } |
| 91 | "!" { return('!'); } |
| 92 | "~" { return('~'); } |
| 93 | "<=" { return(yy::parser::token::LEQ); } |
| 94 | ">=" { return(yy::parser::token::GEQ); } |
| 95 | "==" { return(yy::parser::token::EQUALITY); } |
| 96 | "!=" { return(yy::parser::token::NEQ); } |
| 97 | |
Steven Moreland | ed90687 | 2018-07-10 11:36:37 -0700 | [diff] [blame] | 98 | /* annotations */ |
Jiyong Park | a6605ab | 2018-11-11 14:30:21 +0900 | [diff] [blame] | 99 | @{identifier} { yylval->token = new AidlToken(yytext + 1, extra_text); |
Steven Moreland | ed90687 | 2018-07-10 11:36:37 -0700 | [diff] [blame] | 100 | return yy::parser::token::ANNOTATION; |
| 101 | } |
| 102 | |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 103 | /* keywords */ |
Jiyong Park | a6605ab | 2018-11-11 14:30:21 +0900 | [diff] [blame] | 104 | parcelable { yylval->token = new AidlToken("parcelable", extra_text); |
| 105 | return yy::parser::token::PARCELABLE; |
| 106 | } |
Jooyung Han | 132cf80 | 2021-01-15 02:17:32 +0900 | [diff] [blame^] | 107 | import { yylval->token = new AidlToken("import", extra_text); |
| 108 | return yy::parser::token::IMPORT; } |
| 109 | package { yylval->token = new AidlToken("package", extra_text); |
| 110 | return yy::parser::token::PACKAGE; } |
Casey Dahlin | 3c6df36 | 2015-10-06 15:48:35 -0700 | [diff] [blame] | 111 | in { return yy::parser::token::IN; } |
| 112 | out { return yy::parser::token::OUT; } |
| 113 | inout { return yy::parser::token::INOUT; } |
Jooyung Han | 1a551d3 | 2020-10-05 15:37:26 +0900 | [diff] [blame] | 114 | cpp_header { yylval->token = new AidlToken("cpp_header", extra_text); |
| 115 | return yy::parser::token::CPP_HEADER; } |
Jeongik Cha | 997281d | 2020-01-16 15:23:59 +0900 | [diff] [blame] | 116 | const { yylval->token = new AidlToken("const", extra_text); |
| 117 | return yy::parser::token::CONST; } |
Steven Moreland | 2529432 | 2018-08-07 18:13:55 -0700 | [diff] [blame] | 118 | true { return yy::parser::token::TRUE_LITERAL; } |
| 119 | false { return yy::parser::token::FALSE_LITERAL; } |
Casey Dahlin | fd6fb48 | 2015-09-30 14:48:18 -0700 | [diff] [blame] | 120 | |
Casey Dahlin | cdbbc8c | 2015-10-14 15:31:04 -0700 | [diff] [blame] | 121 | interface { yylval->token = new AidlToken("interface", extra_text); |
| 122 | return yy::parser::token::INTERFACE; |
| 123 | } |
| 124 | oneway { yylval->token = new AidlToken("oneway", extra_text); |
| 125 | return yy::parser::token::ONEWAY; |
| 126 | } |
Daniel Norman | 85aed54 | 2019-08-21 12:01:14 -0700 | [diff] [blame] | 127 | enum { yylval->token = new AidlToken("enum", extra_text); |
| 128 | return yy::parser::token::ENUM; |
| 129 | } |
Jooyung Han | 2946afc | 2020-10-05 20:29:16 +0900 | [diff] [blame] | 130 | union { yylval->token = new AidlToken("union", extra_text); |
| 131 | return yy::parser::token::UNION; |
| 132 | } |
Casey Dahlin | cdbbc8c | 2015-10-14 15:31:04 -0700 | [diff] [blame] | 133 | |
Casey Dahlin | 3c6df36 | 2015-10-06 15:48:35 -0700 | [diff] [blame] | 134 | /* scalars */ |
Casey Dahlin | cdbbc8c | 2015-10-14 15:31:04 -0700 | [diff] [blame] | 135 | {identifier} { yylval->token = new AidlToken(yytext, extra_text); |
| 136 | return yy::parser::token::IDENTIFIER; |
| 137 | } |
Steven Moreland | 2529432 | 2018-08-07 18:13:55 -0700 | [diff] [blame] | 138 | '.' { yylval->character = yytext[1]; |
| 139 | return yy::parser::token::CHARVALUE; |
| 140 | } |
| 141 | {intvalue} { yylval->token = new AidlToken(yytext, extra_text); |
Casey Dahlin | d40e2fe | 2015-11-24 14:06:52 -0800 | [diff] [blame] | 142 | return yy::parser::token::INTVALUE; } |
Steven Moreland | 1c4ba20 | 2018-08-09 10:49:54 -0700 | [diff] [blame] | 143 | {floatvalue} { yylval->token = new AidlToken(yytext, extra_text); |
| 144 | return yy::parser::token::FLOATVALUE; } |
Roshan Pius | 3b2203d | 2016-07-22 16:13:20 -0700 | [diff] [blame] | 145 | {hexvalue} { yylval->token = new AidlToken(yytext, extra_text); |
| 146 | return yy::parser::token::HEXVALUE; } |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 147 | |
Steven Moreland | 2ca4fcb | 2018-06-27 16:01:01 -0700 | [diff] [blame] | 148 | /* lexical error! */ |
| 149 | . { return yy::parser::token::UNKNOWN; } |
Adam Lesinski | ffa1686 | 2014-01-23 18:17:42 -0800 | [diff] [blame] | 150 | |
| 151 | %% |
| 152 | |
| 153 | // comment and whitespace handling |
| 154 | // ================================================ |