// the method represents the operation type only, and we must add an assignment
return new BinaryExpression(left, Token.newSymbol("=", operation.getStartLine(), operation.getStartColumn()), call);
}
if (bin.getOperation().getType() == Types.EQUAL && leftExpression instanceof TupleExpression && rightExpression instanceof ListExpression) {
// multiple assignment
ListOfExpressionsExpression cle = new ListOfExpressionsExpression();
boolean isDeclaration = bin instanceof DeclarationExpression;
List<Expression> leftExpressions = ((TupleExpression) leftExpression).getExpressions();
List<Expression> rightExpressions = ((ListExpression) rightExpression).getExpressions();
Iterator<Expression> leftIt = leftExpressions.iterator();
Iterator<Expression> rightIt = rightExpressions.iterator();
if (isDeclaration) {
while (leftIt.hasNext()) {
Expression left = leftIt.next();
if (rightIt.hasNext()) {
Expression right = rightIt.next();
BinaryExpression bexp = new DeclarationExpression(left, bin.getOperation(), right);
bexp.setSourcePosition(right);
cle.addExpression(bexp);
}
}
} else {
// (next, result) = [ result, next+result ]
// -->
// def tmp1 = result
// def tmp2 = next+result
// next = tmp1
// result = tmp2
int size = rightExpressions.size();
List<Expression> tmpAssignments = new ArrayList<Expression>(size);
List<Expression> finalAssignments = new ArrayList<Expression>(size);
for (int i=0; i<Math.min(size, leftExpressions.size());i++ ) {
Expression left = leftIt.next();
Expression right = rightIt.next();
VariableExpression tmpVar = new VariableExpression("$tmpVar$"+tmpVarCounter++);
BinaryExpression bexp = new DeclarationExpression(tmpVar, bin.getOperation(), right);
bexp.setSourcePosition(right);
tmpAssignments.add(bexp);
bexp = new BinaryExpression(left, bin.getOperation(), new VariableExpression(tmpVar));
bexp.setSourcePosition(left);
finalAssignments.add(bexp);
}
for (Expression tmpAssignment : tmpAssignments) {
cle.addExpression(tmpAssignment);
}
for (Expression finalAssignment : finalAssignments) {
cle.addExpression(finalAssignment);
}
}
return staticCompilationTransformer.transform(cle);
}
return staticCompilationTransformer.superTransform(bin);