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Diffstat (limited to 'src/constexp.y')
| -rw-r--r-- | src/constexp.y | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/src/constexp.y b/src/constexp.y deleted file mode 100644 index a473345..0000000 --- a/src/constexp.y +++ /dev/null @@ -1,278 +0,0 @@ -/****************************************************************************** - * - * - * - * - * Copyright (C) 1997-2005 by Dimitri van Heesch. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation under the terms of the GNU General Public License is hereby - * granted. No representations are made about the suitability of this software - * for any purpose. It is provided "as is" without express or implied warranty. - * See the GNU General Public License for more details. - * - * Documents produced by Doxygen are derivative works derived from the - * input used in their production; they are not affected by this license. - * - */ - -%{ - -#include "cppvalue.h" -#include "constexp.h" -#include "message.h" - -#if defined(_MSC_VER) -#define MSDOS -#endif - -#define YYSTYPE CPPValue - -#include <stdio.h> -#include <stdlib.h> - -int cppExpYYerror(const char *s) -{ - warn(g_constExpFileName,g_constExpLineNr, - "Problem during constant expression evaluation: %s",s); - return 0; -} - -int cppExpYYlex(); - -%} - -%token TOK_QUESTIONMARK -%token TOK_COLON -%token TOK_OR -%token TOK_AND -%token TOK_BITWISEOR -%token TOK_BITWISEXOR -%token TOK_AMPERSAND -%token TOK_NOTEQUAL -%token TOK_EQUAL -%token TOK_LESSTHAN -%token TOK_GREATERTHAN -%token TOK_LESSTHANOREQUALTO -%token TOK_GREATERTHANOREQUALTO -%token TOK_SHIFTLEFT -%token TOK_SHIFTRIGHT -%token TOK_PLUS -%token TOK_MINUS -%token TOK_STAR -%token TOK_DIVIDE -%token TOK_MOD -%token TOK_TILDE -%token TOK_NOT -%token TOK_LPAREN -%token TOK_RPAREN -%token TOK_OCTALINT -%token TOK_DECIMALINT -%token TOK_HEXADECIMALINT -%token TOK_CHARACTER -%token TOK_FLOAT - -%% - -start: constant_expression - { g_resultValue = $1; return 0; } -; - -constant_expression: logical_or_expression - { $$ = $1; } - | logical_or_expression - TOK_QUESTIONMARK logical_or_expression - TOK_COLON logical_or_expression - { - bool c = ($1.isInt() ? ((long)$1 != 0) : ((double)$1 != 0.0)); - $$ = c ? $3 : $5; - } -; - -logical_or_expression: logical_and_expression - { $$ = $1; } - | logical_or_expression TOK_OR logical_and_expression - { - $$ = CPPValue( (long)((long)$1 || (long)$3) ); - } -; - -logical_and_expression: inclusive_or_expression - { $$ = $1; } - | logical_and_expression TOK_AND inclusive_or_expression - { - $$ = CPPValue( (long)((long)$1 && (long)$3) ); - } -; - -inclusive_or_expression: exclusive_or_expression - { $$ = $1; } - | inclusive_or_expression TOK_BITWISEOR - exclusive_or_expression - { - $$ = CPPValue( (long)$1 | (long)$3 ); - } -; - -exclusive_or_expression: and_expression - { $$ = $1; } - | exclusive_or_expression TOK_BITWISEXOR and_expression - { - $$ = CPPValue( (long)$1 ^ (long)$3 ); - } -; - -and_expression: equality_expression - { $$ = $1; } - | and_expression TOK_AMPERSAND equality_expression - { - $$ = CPPValue( (long)$1 & (long)$3 ); - } -; - -equality_expression: relational_expression - { $$ = $1; } - | equality_expression TOK_EQUAL relational_expression - { - $$ = CPPValue( (long)((double)$1 == (double)$3) ); - } - | equality_expression TOK_NOTEQUAL relational_expression - { - $$ = CPPValue( (long)((double)$1 != (double)$3) ); - } -; - -relational_expression: shift_expression - { $$ = $1; } - | relational_expression TOK_LESSTHAN shift_expression - { - $$ = CPPValue( (long)((double)$1 < (double)$3) ); - } - | relational_expression TOK_GREATERTHAN shift_expression - { - $$ = CPPValue( (long)((double)$1 > (double)$3) ); - } - | relational_expression TOK_LESSTHANOREQUALTO - shift_expression - { - $$ = CPPValue( (long)((double)$1 <= (double)$3) ); - } - | relational_expression TOK_GREATERTHANOREQUALTO - shift_expression - { - $$ = CPPValue( (long)((double)$1 >= (double)$3) ); - } -; - -shift_expression: additive_expression - { $$ = $1; } - | shift_expression TOK_SHIFTLEFT additive_expression - { - $$ = CPPValue( (long)$1 << (long)$3 ); - } - | shift_expression TOK_SHIFTRIGHT additive_expression - { - $$ = CPPValue( (long)$1 >> (long)$3 ); - } -; - -additive_expression: multiplicative_expression - { $$ = $1; } - | additive_expression TOK_PLUS multiplicative_expression - { - if (!$1.isInt() || !$3.isInt()) - { - $$ = CPPValue( (double)$1 + (double)$3 ); - } - else - { - $$ = CPPValue( (long)$1 + (long)$3 ); - } - } - | additive_expression TOK_MINUS multiplicative_expression - { - if (!$1.isInt() || !$3.isInt()) - { - $$ = CPPValue( (double)$1 - (double)$3 ); - } - else - { - $$ = CPPValue( (long)$1 - (long)$3 ); - } - } -; - -multiplicative_expression: unary_expression - { $$ = $1; } - | multiplicative_expression TOK_STAR unary_expression - { - if (!$1.isInt() || !$3.isInt()) - { - $$ = CPPValue( (double)$1 * (double)$3 ); - } - else - { - $$ = CPPValue( (long)$1 * (long)$3 ); - } - } - | multiplicative_expression TOK_DIVIDE unary_expression - { - if (!$1.isInt() || !$3.isInt()) - { - $$ = CPPValue( (double)$1 / (double)$3 ); - } - else - { - long value = $3; - if (value==0) value=1; - $$ = CPPValue( (long)$1 / value ); - } - } - | multiplicative_expression TOK_MOD unary_expression - { - long value = $3; - if (value==0) value=1; - $$ = CPPValue( (long)$1 % value ); - } -; - -unary_expression: primary_expression - { $$ = $1; } - | TOK_PLUS unary_expression - { $$ = $1; } - | TOK_MINUS unary_expression - { - if ($2.isInt()) - $$ = CPPValue(-(long)$2); - else - $$ = CPPValue(-(double)$2); - } - | TOK_TILDE unary_expression - { - $$ = CPPValue(~(long)$2); - } - | TOK_NOT unary_expression - { - $$ = CPPValue((long)!(long)$2); - } -; - -primary_expression: constant - { $$ = $1; } - | TOK_LPAREN constant_expression TOK_RPAREN - { $$ = $2; } -; - -constant: TOK_OCTALINT - { $$ = parseOctal(); } - | TOK_DECIMALINT - { $$ = parseDecimal(); } - | TOK_HEXADECIMALINT - { $$ = parseHexadecimal(); } - | TOK_CHARACTER - { $$ = parseCharacter(); } - | TOK_FLOAT - { $$ = parseFloat(); } -; - -%% |