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Fix non-associativity of non-eq comparison ops in LL1 grammar #4

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Fix non-associativity of non-eq comparison ops in LL1 grammar #4

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12 changes: 6 additions & 6 deletions src/main/ll1pg/Decaf.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -462,24 +462,24 @@ ExprT3 : Op3 Expr4 ExprT3

Expr4 : Expr5 ExprT4
{
$$ = buildBinaryExpr($1, $2.thunkList);
if($2.expr != null) {
$$ = svExpr(new Binary(BinaryOp.values()[$2.code], $1.expr, $2.expr, $2.pos));
} else
$$ = $1;
}
;

ExprT4 : Op4 Expr5 ExprT4
ExprT4 : Op4 Expr5
{
var sv = new SemValue();
sv.code = $1.code;
sv.pos = $1.pos;
sv.expr = $2.expr;

$$ = $3;
$$.thunkList.add(0, sv);
$$ = sv;
}
| /* empty */
{
$$ = new SemValue();
$$.thunkList = new ArrayList<>();
}
;

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