| 1 | %{ |
| 2 | /* |
| 3 | * SPDX-License-Identifier: MIT |
| 4 | * |
| 5 | * Copyright 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 6 | * |
| 7 | * Common Trace Formal Lexer |
| 8 | */ |
| 9 | |
| 10 | #include "plugins/ctf/common/src/metadata/tsdl/ast.hpp" |
| 11 | #include "plugins/ctf/common/src/metadata/tsdl/logging.hpp" |
| 12 | #include "plugins/ctf/common/src/metadata/tsdl/parser-wrap.hpp" |
| 13 | #include "plugins/ctf/common/src/metadata/tsdl/scanner.hpp" |
| 14 | |
| 15 | #define YY_FATAL_ERROR(_msg) BT_CPPLOGF_SPEC(currentCtfScanner->logger, "{}", _msg) |
| 16 | |
| 17 | #define PARSE_INTEGER_LITERAL(base) \ |
| 18 | do { \ |
| 19 | errno = 0; \ |
| 20 | yylval->ull = strtoull(yytext, NULL, base); \ |
| 21 | if (errno) { \ |
| 22 | _BT_CPPLOGE_APPEND_CAUSE_LINENO( \ |
| 23 | currentCtfScanner->logger, \ |
| 24 | yylineno, \ |
| 25 | "Cannot parser constant integer: " \ |
| 26 | "base={}, text=\"{}\"", base, yytext); \ |
| 27 | return CTF_ERROR; \ |
| 28 | } \ |
| 29 | } while (0) |
| 30 | |
| 31 | extern thread_local const ctf_scanner *const currentCtfScanner; |
| 32 | %} |
| 33 | |
| 34 | %x comment_ml comment_sl string_lit char_const |
| 35 | %option reentrant yylineno noyywrap bison-bridge |
| 36 | %option extra-type="struct ctf_scanner *" |
| 37 | /* bison-locations */ |
| 38 | INTEGER_SUFFIX (U|UL|ULL|LU|LLU|Ul|Ull|lU|llU|u|uL|uLL|Lu|LLu|ul|ull|lu|llu) |
| 39 | DIGIT [0-9] |
| 40 | NONDIGIT [a-zA-Z_] |
| 41 | HEXDIGIT [0-9A-Fa-f] |
| 42 | OCTALDIGIT [0-7] |
| 43 | UCHARLOWERCASE \\u{HEXDIGIT}{4} |
| 44 | UCHARUPPERCASE \\U{HEXDIGIT}{8} |
| 45 | ID_NONDIGIT {NONDIGIT}|{UCHARLOWERCASE}|{UCHARUPPERCASE} |
| 46 | IDENTIFIER {ID_NONDIGIT}({ID_NONDIGIT}|{DIGIT})* |
| 47 | %% |
| 48 | |
| 49 | /* |
| 50 | * Using start conditions to deal with comments |
| 51 | * and strings. |
| 52 | */ |
| 53 | |
| 54 | "/*" BEGIN(comment_ml); |
| 55 | <comment_ml>[^*\n]* /* eat anything that's not a '*' */ |
| 56 | <comment_ml>"*"+[^*/\n]* /* eat up '*'s not followed by '/'s */ |
| 57 | <comment_ml>\n |
| 58 | <comment_ml>"*"+"/" BEGIN(INITIAL); |
| 59 | |
| 60 | "//"[^\n]*\n /* skip comment */ |
| 61 | |
| 62 | L?\"(\\.|[^\\"])*\" { if (import_string(yyextra, yylval, yytext, '\"') < 0) return CTF_ERROR; else return CTF_STRING_LITERAL; } |
| 63 | L?\'(\\.|[^\\'])*\' { if (import_string(yyextra, yylval, yytext, '\'') < 0) return CTF_ERROR; else return CTF_CHARACTER_LITERAL; } |
| 64 | |
| 65 | "[" return CTF_LSBRAC; |
| 66 | "]" return CTF_RSBRAC; |
| 67 | "(" return CTF_LPAREN; |
| 68 | ")" return CTF_RPAREN; |
| 69 | "{" return CTF_LBRAC; |
| 70 | "}" return CTF_RBRAC; |
| 71 | "->" return CTF_RARROW; |
| 72 | "*" return CTF_STAR; |
| 73 | "+" return CTF_PLUS; |
| 74 | "-" return CTF_MINUS; |
| 75 | "<" return CTF_LT; |
| 76 | ">" return CTF_GT; |
| 77 | := return CTF_TYPEASSIGN; |
| 78 | : return CTF_COLON; |
| 79 | ; return CTF_SEMICOLON; |
| 80 | "..." return CTF_DOTDOTDOT; |
| 81 | "." return CTF_DOT; |
| 82 | = return CTF_EQUAL; |
| 83 | "," return CTF_COMMA; |
| 84 | align setstring(yyextra, yylval, yytext); return CTF_TOK_ALIGN; |
| 85 | const setstring(yyextra, yylval, yytext); return CTF_CONST; |
| 86 | char setstring(yyextra, yylval, yytext); return CTF_CHAR; |
| 87 | clock setstring(yyextra, yylval, yytext); return CTF_CLOCK; |
| 88 | double setstring(yyextra, yylval, yytext); return CTF_DOUBLE; |
| 89 | enum setstring(yyextra, yylval, yytext); return CTF_ENUM; |
| 90 | env setstring(yyextra, yylval, yytext); return CTF_ENV; |
| 91 | event setstring(yyextra, yylval, yytext); return CTF_EVENT; |
| 92 | floating_point setstring(yyextra, yylval, yytext); return CTF_FLOATING_POINT; |
| 93 | float setstring(yyextra, yylval, yytext); return CTF_FLOAT; |
| 94 | integer setstring(yyextra, yylval, yytext); return CTF_INTEGER; |
| 95 | int setstring(yyextra, yylval, yytext); return CTF_INT; |
| 96 | long setstring(yyextra, yylval, yytext); return CTF_LONG; |
| 97 | short setstring(yyextra, yylval, yytext); return CTF_SHORT; |
| 98 | signed setstring(yyextra, yylval, yytext); return CTF_SIGNED; |
| 99 | stream setstring(yyextra, yylval, yytext); return CTF_STREAM; |
| 100 | string setstring(yyextra, yylval, yytext); return CTF_STRING; |
| 101 | struct setstring(yyextra, yylval, yytext); return CTF_STRUCT; |
| 102 | trace setstring(yyextra, yylval, yytext); return CTF_TRACE; |
| 103 | callsite setstring(yyextra, yylval, yytext); return CTF_CALLSITE; |
| 104 | typealias setstring(yyextra, yylval, yytext); return CTF_TYPEALIAS; |
| 105 | typedef setstring(yyextra, yylval, yytext); return CTF_TYPEDEF; |
| 106 | unsigned setstring(yyextra, yylval, yytext); return CTF_UNSIGNED; |
| 107 | variant setstring(yyextra, yylval, yytext); return CTF_VARIANT; |
| 108 | void setstring(yyextra, yylval, yytext); return CTF_VOID; |
| 109 | _Bool setstring(yyextra, yylval, yytext); return CTF_BOOL; |
| 110 | _Complex setstring(yyextra, yylval, yytext); return CTF_COMPLEX; |
| 111 | _Imaginary setstring(yyextra, yylval, yytext); return CTF_IMAGINARY; |
| 112 | [1-9]{DIGIT}*{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(10); return CTF_INTEGER_LITERAL; |
| 113 | 0{OCTALDIGIT}*{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(8); return CTF_INTEGER_LITERAL; |
| 114 | 0[xX]{HEXDIGIT}+{INTEGER_SUFFIX}? PARSE_INTEGER_LITERAL(16); return CTF_INTEGER_LITERAL; |
| 115 | |
| 116 | {IDENTIFIER} BT_CPPLOGT_SPEC(currentCtfScanner->logger, "Got identifier: id=\"{}\"", yytext); setstring(yyextra, yylval, yytext); if (is_type(yyextra, yytext)) return ID_TYPE; else return IDENTIFIER; |
| 117 | [ \t\r\n] ; /* ignore */ |
| 118 | . _BT_CPPLOGE_APPEND_CAUSE_LINENO(currentCtfScanner->logger, yylineno, "Invalid character: char=\"{}\", val={:#02x}", isprint((unsigned char) yytext[0]) ? yytext[0] : '\0', yytext[0]); return CTF_ERROR; |
| 119 | %% |