public void L() throws IOException {
S();
stackMachine.evaluate(null);
if (currentAssigneeSymbol != null) {
currentAssigneeSymbol.value = stackMachine.value;
// System.out.println();
postFix.append("\n");
if (currentAssigneeSymbol.type == "int" && stackMachine.value instanceof Float) {
postFix.append(
"Warning : Stack Machine-Time mismatch (Narrowing convention) between assignee id type ="
+ currentAssigneeSymbol.type
+ " calculated value type="
+ Type.Float.tostring()
+ "\n");
// System.out.println("Warning : Stack Machine-Time mismatch (Narrowing convention) between
// assignee id type ="+currentAssigneeSymbol.typeOb.tostring()+ " calculated value
// type="+Type.Float.tostring());
} else if (currentAssigneeSymbol.type == "float" && stackMachine.value instanceof Integer) {
postFix.append(
"Warning : Stack Machine-Time mismatch (Widening convention) between assignee id type ="
+ currentAssigneeSymbol.type
+ " calculated value type="
+ Type.Int.tostring()
+ "\n");
// System.out.println("Warning : Stack Machine-Time mismatch (Widening convention) between
// assignee id type ="+currentAssigneeSymbol.typeOb.tostring()+ " calculated value
// type="+Type.Int.tostring());
}
// System.out.println(currentAssigneeSymbol.lexeme+"="+currentAssigneeSymbol.value);
postFix.append(currentAssigneeSymbol.lexeme + "=" + currentAssigneeSymbol.value + "\n");
} else {
// System.out.println();
postFix.append("\n");
postFix.append(stackMachine.value);
}
currentAssigneeSymbol = null;
// toCode(AbsNode.used,bw);
AbstractNode.processedSymbols = new ArrayList<AbstractNode>(); // new set of nodes for new stmt
AbstractNode.tempVal = 0;
System.out.println("Postfix notation and value of the statement");
System.out.println(postFix);
System.out.println();
postFix = new StringBuffer();
match(';');
L1();
}
public AbstractNode T1(AbstractNode factnodeinh) throws IOException {
AbstractNode node; // node which rerpesents the operation so far
AbstractNode snode; // synthesised attribute which gives the full answer
AbstractNode prefn = factnodeinh; // previous factor nonterminal is inherited
AbstractNode curfn;
if (look.tag == '*') {
match('*');
curfn = F();
// System.out.print("*");
postFix.append("*");
stackMachine.evaluate("*");
node =
threeAddressCodeGenerator.generateCodeForNode(
prefn, curfn, "*"); // generate code for node
snode = T1(node);
} else {
snode = factnodeinh;
}
return snode;
}
