diff options
Diffstat (limited to 'examples/java/Calc.y')
| -rw-r--r-- | examples/java/Calc.y | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/examples/java/Calc.y b/examples/java/Calc.y index b69241b5..28195ddd 100644 --- a/examples/java/Calc.y +++ b/examples/java/Calc.y @@ -47,24 +47,22 @@ line: ; exp: - NUM { $$ = $1; } + NUM { $$ = $1; } | exp '=' exp { if ($1.intValue () != $3.intValue ()) yyerror (@$, "calc: error: " + $1 + " != " + $3); } -| exp '+' exp { $$ = new Integer ($1.intValue () + $3.intValue ()); } -| exp '-' exp { $$ = new Integer ($1.intValue () - $3.intValue ()); } -| exp '*' exp { $$ = new Integer ($1.intValue () * $3.intValue ()); } -| exp '/' exp { $$ = new Integer ($1.intValue () / $3.intValue ()); } -| '-' exp %prec NEG { $$ = new Integer (-$2.intValue ()); } -| exp '^' exp { $$ = new Integer ((int) - Math.pow ($1.intValue (), - $3.intValue ())); } -| '(' exp ')' { $$ = $2; } -| '(' error ')' { $$ = new Integer (1111); } -| '!' { $$ = new Integer (0); return YYERROR; } -| '-' error { $$ = new Integer (0); return YYERROR; } +| exp '+' exp { $$ = $1 + $3; } +| exp '-' exp { $$ = $1 - $3; } +| exp '*' exp { $$ = $1 * $3; } +| exp '/' exp { $$ = $1 / $3; } +| '-' exp %prec NEG { $$ = -$2; } +| exp '^' exp { $$ = (int) Math.pow ($1, $3); } +| '(' exp ')' { $$ = $2; } +| '(' error ')' { $$ = 1111; } +| '!' { $$ = 0; return YYERROR; } +| '-' error { $$ = 0; return YYERROR; } ; |