Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 1 | D [0-9] |
| 2 | L [a-zA-Z_] |
| 3 | H [a-fA-F0-9] |
| 4 | E [Ee][+-]?{D}+ |
| 5 | FS (f|F|l|L) |
| 6 | IS (u|U|l|L)* |
| 7 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 8 | COMPONENT {L}({L}|{D})* |
| 9 | DOT [.] |
| 10 | PATH {COMPONENT}({DOT}{COMPONENT})* |
| 11 | AT [@] |
| 12 | VERSION {AT}{D}+{DOT}{D}+ |
| 13 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 14 | %{ |
| 15 | |
| 16 | #include "AST.h" |
| 17 | #include "CompoundType.h" |
| 18 | #include "EnumType.h" |
| 19 | #include "HandleType.h" |
| 20 | #include "Method.h" |
| 21 | #include "RefType.h" |
| 22 | #include "ScalarType.h" |
| 23 | #include "StringType.h" |
| 24 | |
| 25 | #include "hidl-gen_y.h" |
| 26 | |
| 27 | #include <assert.h> |
| 28 | |
| 29 | using namespace android; |
| 30 | |
| 31 | void count(struct yyguts_t *yyg); |
| 32 | void comment(yyscan_t yyscanner, struct yyguts_t *yyg); |
| 33 | int check_type(yyscan_t yyscanner, struct yyguts_t *yyg); |
| 34 | |
| 35 | #define SCALAR_TYPE(kind) \ |
| 36 | do { \ |
| 37 | count(yyg); \ |
| 38 | yylval->type = new ScalarType(ScalarType::kind); \ |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 39 | return SCALAR; \ |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 40 | } while (0) |
| 41 | |
| 42 | %} |
| 43 | |
| 44 | %option reentrant |
| 45 | %option bison-bridge |
| 46 | %option extra-type="android::AST *" |
| 47 | |
| 48 | %% |
| 49 | |
| 50 | "/*" { comment(yyscanner, yyg); } |
| 51 | "//"[^\r\n]* { /* skip C++ style comment */ } |
| 52 | |
| 53 | "const" { count(yyg); return(CONST); } |
| 54 | "enum" { count(yyg); return(ENUM); } |
| 55 | "extends" { count(yyg); return(EXTENDS); } |
| 56 | "generates" { count(yyg); return(GENERATES); } |
| 57 | "import" { count(yyg); return(IMPORT); } |
| 58 | "interface" { count(yyg); return(INTERFACE); } |
| 59 | "package" { count(yyg); return(PACKAGE); } |
| 60 | "struct" { count(yyg); return(STRUCT); } |
| 61 | "typedef" { count(yyg); return(TYPEDEF); } |
| 62 | "union" { count(yyg); return(UNION); } |
| 63 | "vec" { count(yyg); return(VEC); } |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 64 | |
| 65 | "char" { SCALAR_TYPE(KIND_CHAR); } |
| 66 | "bool" { SCALAR_TYPE(KIND_BOOL); } |
| 67 | "opaque" { SCALAR_TYPE(KIND_OPAQUE); } |
| 68 | "int8_t" { SCALAR_TYPE(KIND_INT8); } |
| 69 | "uint8_t" { SCALAR_TYPE(KIND_UINT8); } |
| 70 | "int16_t" { SCALAR_TYPE(KIND_INT16); } |
| 71 | "uint16_t" { SCALAR_TYPE(KIND_UINT16); } |
| 72 | "int32_t" { SCALAR_TYPE(KIND_INT32); } |
| 73 | "uint32_t" { SCALAR_TYPE(KIND_UINT32); } |
| 74 | "int64_t" { SCALAR_TYPE(KIND_INT64); } |
| 75 | "uint64_t" { SCALAR_TYPE(KIND_UINT64); } |
| 76 | "float" { SCALAR_TYPE(KIND_FLOAT); } |
| 77 | "double" { SCALAR_TYPE(KIND_DOUBLE); } |
| 78 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 79 | "handle" { count(yyg); yylval->type = new HandleType; return SCALAR; } |
| 80 | "string" { count(yyg); yylval->type = new StringType; return SCALAR; } |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 81 | |
| 82 | "(" { count(yyg); return('('); } |
| 83 | ")" { count(yyg); return(')'); } |
| 84 | "<" { count(yyg); return('<'); } |
| 85 | ">" { count(yyg); return('>'); } |
| 86 | "{" { count(yyg); return('{'); } |
| 87 | "}" { count(yyg); return('}'); } |
| 88 | "[" { count(yyg); return('['); } |
| 89 | "]" { count(yyg); return(']'); } |
| 90 | ":" { count(yyg); return(':'); } |
| 91 | ";" { count(yyg); return(';'); } |
| 92 | "," { count(yyg); return(','); } |
| 93 | "." { count(yyg); return('.'); } |
| 94 | "=" { count(yyg); return('='); } |
| 95 | |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 96 | {PATH}{VERSION}?"::"{PATH} { count(yyg); yylval->str = strdup(yytext); return FQNAME; } |
| 97 | {VERSION}"::"{PATH} { count(yyg); yylval->str = strdup(yytext); return FQNAME; } |
Andreas Huber | da51b8e | 2016-07-28 16:00:57 -0700 | [diff] [blame^] | 98 | {PATH}{VERSION} { count(yyg); yylval->str = strdup(yytext); return FQNAME; } |
Andreas Huber | 84f89de | 2016-07-28 15:39:51 -0700 | [diff] [blame] | 99 | {COMPONENT}({DOT}{COMPONENT})+ { count(yyg); yylval->str = strdup(yytext); return FQNAME; } |
| 100 | {COMPONENT} { count(yyg); yylval->str = strdup(yytext); return IDENTIFIER; } |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 101 | |
| 102 | 0[xX]{H}+{IS}? { count(yyg); yylval->str = strdup(yytext); return(INTEGER); } |
| 103 | 0{D}+{IS}? { count(yyg); yylval->str = strdup(yytext); return(INTEGER); } |
| 104 | {D}+{IS}? { count(yyg); yylval->str = strdup(yytext); return(INTEGER); } |
| 105 | L?\"(\\.|[^\\"])*\" { count(yyg); yylval->str = strdup(yytext); return(STRING_LITERAL); } |
| 106 | |
| 107 | [ \t\v\n\f] { count(yyg); } |
| 108 | . { /* ignore bad characters */ } |
| 109 | |
| 110 | %% |
| 111 | |
| 112 | int yywrap(yyscan_t scanner) { |
| 113 | return 1; |
| 114 | } |
| 115 | |
| 116 | void comment(yyscan_t yyscanner, yyguts_t *yyg) { |
| 117 | char c, c1; |
| 118 | |
| 119 | loop: |
| 120 | while ((c = yyinput(yyscanner)) != '*' && c != 0) |
| 121 | putchar(c); |
| 122 | |
| 123 | if ((c1 = yyinput(yyscanner)) != '/' && c != 0) |
| 124 | { |
| 125 | unput(c1); |
| 126 | goto loop; |
| 127 | } |
| 128 | |
| 129 | if (c != 0) { |
| 130 | putchar(c1); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | |
| 135 | int column = 0; |
| 136 | |
| 137 | void count(yyguts_t *yyg) { |
| 138 | int i; |
| 139 | |
| 140 | for (i = 0; yytext[i] != '\0'; i++) |
| 141 | if (yytext[i] == '\n') |
| 142 | column = 0; |
| 143 | else if (yytext[i] == '\t') |
| 144 | column += 8 - (column % 8); |
| 145 | else |
| 146 | column++; |
| 147 | |
| 148 | ECHO; |
| 149 | } |
| 150 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 151 | void parseFile(AST *ast, const char *path) { |
| 152 | FILE *file = fopen(path, "rb"); |
| 153 | |
| 154 | yyscan_t scanner; |
| 155 | yylex_init_extra(ast, &scanner); |
| 156 | ast->setScanner(scanner); |
| 157 | |
| 158 | yyset_in(file, scanner); |
| 159 | int res = yyparse(ast); |
| 160 | assert(res == 0); |
| 161 | |
| 162 | yylex_destroy(scanner); |
| 163 | ast->setScanner(NULL); |
| 164 | |
| 165 | fclose(file); |
| 166 | file = NULL; |
| 167 | } |