rhsValueId = compileStack.defineVariable(var, lhsType, true).getIndex();
} else {
rhsValueId = compileStack.defineTemporaryVariable("$rhs", rhsType, true);
}
//TODO: if rhs is VariableSlotLoader already, then skip crating a new one
BytecodeExpression rhsValueLoader = new VariableSlotLoader(rhsType,rhsValueId,operandStack);
// assignment for subscript
if (leftExpression instanceof BinaryExpression) {
BinaryExpression leftBinExpr = (BinaryExpression) leftExpression;
if (leftBinExpr.getOperation().getType() == Types.LEFT_SQUARE_BRACKET) {
assignToArray(expression, leftBinExpr.getLeftExpression(), leftBinExpr.getRightExpression(), rhsValueLoader);
}
compileStack.removeVar(rhsValueId);
return;
}
compileStack.pushLHS(true);
// multiple declaration
if (leftExpression instanceof TupleExpression) {
TupleExpression tuple = (TupleExpression) leftExpression;
int i = 0;
for (Expression e : tuple.getExpressions()) {
VariableExpression var = (VariableExpression) e;
MethodCallExpression call = new MethodCallExpression(
rhsValueLoader, "getAt",
new ArgumentListExpression(new ConstantExpression(i)));
call.visit(acg);
i++;
if (defineVariable) {
operandStack.doGroovyCast(var);
compileStack.defineVariable(var, true);
operandStack.remove(1);
} else {
acg.visitVariableExpression(var);
}
}
}
// single declaration
else if (defineVariable) {
rhsValueLoader.visit(acg);
operandStack.remove(1);
compileStack.popLHS();
return;
}
// normal assignment
else {
int mark = operandStack.getStackLength();
// to leave a copy of the rightExpression value on the stack after the assignment.
rhsValueLoader.visit(acg);
TypeChooser typeChooser = controller.getTypeChooser();
ClassNode targetType = typeChooser.resolveType(leftExpression, controller.getClassNode());
operandStack.doGroovyCast(targetType);
leftExpression.visit(acg);
operandStack.remove(operandStack.getStackLength()-mark);
}
compileStack.popLHS();
// return value of assignment
rhsValueLoader.visit(acg);
compileStack.removeVar(rhsValueId);
}