src/Token.h
changeset 86 32ad0523b309
parent 83 79265b56316e
child 133 7797936ba34c
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/Token.h	Tue Jul 24 23:53:34 2012 -0700
     1.3 @@ -0,0 +1,128 @@
     1.4 +/*
     1.5 + * Copyright (C) 2012 David Anderson
     1.6 + *
     1.7 + * This file is part of JITCraft.
     1.8 + *
     1.9 + * JITCraft is free software: you can redistribute it and/or modify it under
    1.10 + * the terms of the GNU General Public License as published by the Free
    1.11 + * Software Foundation, either version 3 of the License, or (at your option)
    1.12 + * any later version.
    1.13 + * 
    1.14 + * Foobar is distributed in the hope that it will be useful, but WITHOUT ANY
    1.15 + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    1.16 + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License along with
    1.19 + * JITCraft. If not, see http://www.gnu.org/licenses/.
    1.20 + */
    1.21 +#ifndef _include_jitcraft_token_h_
    1.22 +#define _include_jitcraft_token_h_
    1.23 +
    1.24 +namespace ke {
    1.25 +
    1.26 +struct SourcePosition
    1.27 +{
    1.28 +    int line;
    1.29 +    int col;
    1.30 +
    1.31 +    SourcePosition()
    1.32 +      : line(-1),
    1.33 +        col(-1)
    1.34 +    {
    1.35 +    }
    1.36 +
    1.37 +    SourcePosition(unsigned line, unsigned col)
    1.38 +      : line(line),
    1.39 +        col(col)
    1.40 +    {
    1.41 +    }
    1.42 +};
    1.43 +
    1.44 +// List of tokens the scanner can recognize.
    1.45 +//
    1.46 +// Some restrictions:
    1.47 +//   * (ASSIGN_ADD - TOK_PLUS) must be the delta between an operator and its
    1.48 +//     op-and-assign equivalent.
    1.49 +#define TOKENMAP(_)                                     \
    1.50 +    _(ERROR,              "<error>")                    \
    1.51 +    _(NEW,                "'new'")                      \
    1.52 +    _(FOR,                "'for'")                      \
    1.53 +    _(RETURN,             "'return'")                   \
    1.54 +    _(NAME,               "<name>")                     \
    1.55 +    _(INTEGER_LITERAL,    "<integer>")                  \
    1.56 +    _(FLOAT_LITERAL,      "<float>")                    \
    1.57 +    _(STRING_LITERAL,     "<string>")                   \
    1.58 +    _(IF,                 "<if>")                       \
    1.59 +    _(ELSE,               "<else>")                     \
    1.60 +    _(ENUM,               "<enum>")                     \
    1.61 +    _(LABEL,              "<label>")                    \
    1.62 +    _(WHILE,              "<while>")                    \
    1.63 +    _(DO,                 "<do>")                       \
    1.64 +    _(BREAK,              "<break>")                    \
    1.65 +    _(CONTINUE,           "<continue>")                 \
    1.66 +    _(FORWARD,            "<forward>")                  \
    1.67 +    _(PUBLIC,             "<public>")                   \
    1.68 +    _(CONST,              "<const>")                    \
    1.69 +    _(NATIVE,             "<native>")                   \
    1.70 +    _(ELLIPSES,           "...")                        \
    1.71 +    _(PLUS,               "+")                          \
    1.72 +    _(MINUS,              "-")                          \
    1.73 +    _(STAR,               "*")                          \
    1.74 +    _(SLASH,              "/")                          \
    1.75 +    _(PERCENT,            "%")                          \
    1.76 +    _(AMPERSAND,          "&")                          \
    1.77 +    _(BITOR,              "|")                          \
    1.78 +    _(BITXOR,             "^")                          \
    1.79 +    _(SHR,                ">>")                         \
    1.80 +    _(USHR,               ">>>")                        \
    1.81 +    _(SHL,                "<<")                         \
    1.82 +    _(ASSIGN,             "=")                          \
    1.83 +    _(SEMICOLON,          ";")                          \
    1.84 +    _(LBRACE,             "{")                          \
    1.85 +    _(RBRACE,             "}")                          \
    1.86 +    _(LPAREN,             "(")                          \
    1.87 +    _(RPAREN,             ")")                          \
    1.88 +    _(LBRACKET,           "[")                          \
    1.89 +    _(RBRACKET,           "]")                          \
    1.90 +    _(ASSIGN_ADD,         "+=")                         \
    1.91 +    _(ASSIGN_SUB,         "-=")                         \
    1.92 +    _(ASSIGN_MUL,         "*=")                         \
    1.93 +    _(ASSIGN_DIV,         "/=")                         \
    1.94 +    _(ASSIGN_MOD,         "%=")                         \
    1.95 +    _(ASSIGN_BITAND,      "&=")                         \
    1.96 +    _(ASSIGN_BITOR,       "|=")                         \
    1.97 +    _(ASSIGN_BITXOR,      "^=")                         \
    1.98 +    _(ASSIGN_SHR,         ">>=")                        \
    1.99 +    _(ASSIGN_USHR,        ">>>=")                       \
   1.100 +    _(ASSIGN_SHL,         "<<=")                        \
   1.101 +    _(INCREMENT,          "++")                         \
   1.102 +    _(DECREMENT,          "--")                         \
   1.103 +    _(EQUALS,             "==")                         \
   1.104 +    _(NOTEQUALS,          "!=")                         \
   1.105 +    _(LT,                 "<")                          \
   1.106 +    _(LE,                 "<=")                         \
   1.107 +    _(GT,                 ">")                          \
   1.108 +    _(GE,                 ">=")                         \
   1.109 +    _(AND,                "&&")                         \
   1.110 +    _(OR,                 "||")                         \
   1.111 +    _(COMMA,              ",")                          \
   1.112 +    _(NOT,                "!")                          \
   1.113 +    _(TILDE,              "~")                          \
   1.114 +    _(QMARK,              "?")                          \
   1.115 +    _(COLON,              ":")                          \
   1.116 +    _(EOF,                "<end-of-file>")
   1.117 +
   1.118 +enum TokenKind
   1.119 +{
   1.120 +#   define _(name, str) TOK_##name,
   1.121 +    TOKENMAP(_)
   1.122 +#   undef _
   1.123 +    TOK_BITAND = TOK_AMPERSAND,
   1.124 +    TOKENS_TOTAL
   1.125 +};
   1.126 +
   1.127 +extern const char *TokenNames[];
   1.128 +
   1.129 +} // namespace ke
   1.130 +
   1.131 +#endif //_include_jitcraft_token_h_