protected Stack<Operation> handleEqualSizeStack(
Operation jumpCondition, Stack<Operation> beforeStack, Stack<Operation> afterStack) {
int size = beforeStack.size();
int unequalItems = 0;
for (int j = size - 1; j >= 0; j--) {
logger.debug("CHK(PREV<->NEXT): " + beforeStack.get(j) + " <-> " + afterStack.get(j));
if (!beforeStack.get(j).equals(afterStack.get(j))) {
Assert.isTrue(j == size - 1); // allow only stack-top items to be unequal
unequalItems++;
}
}
logger.debug("Unequal items = " + unequalItems);
// Handle only 1 unequal item
Assert.isTrue(unequalItems == 1);
// Handle only boolean operations
if (!(beforeStack.peek() instanceof BooleanOperation)) {
// throw new IllegalArgumentException("Not boolean: "+beforeStack.peek());
logger.error("Not boolean: " + beforeStack.peek());
}
if (!(afterStack.peek() instanceof BooleanOperation)) {
// throw new IllegalArgumentException("Not boolean: "+afterStack.peek());
logger.error("Not boolean: " + afterStack.peek());
}
logger.debug("Try to simplify if condition...");
/*
condition = a
before stack = b
after stack = c
a&&b || !a&&c
*/
Stack<Operation> newExecutionStack = copyExecutionStack(afterStack);
if (jumpCondition.equals(beforeStack.peek())) {
// a&&a || !a&&c = a || !a&&c = a||c;
logger.debug("Simplifying to OR");
Operation nextStackValue = newExecutionStack.pop();
newExecutionStack.push(new OrOperation(jumpCondition, nextStackValue));
} else if (jumpCondition.equals(new NotOperation(beforeStack.peek()))) {
// a&&!a || !a&&c = 0 || !a&&c = !a&&c
logger.debug("Simplifying to AND");
Operation nextStackValue = newExecutionStack.pop();
newExecutionStack.push(
AndOperation.createInstance(new NotOperation(jumpCondition), nextStackValue));
} else {
logger.debug("Simplifying to TERNARY");
// Operation op1 = AndOperation.createInstance(jumpCondition,beforeStack.peek());
// Operation op2 = AndOperation.createInstance(new
// NotOperation(jumpCondition),newExecutionStack.pop());
// newExecutionStack.push(BranchOperation.createInstance(op1, op2));
newExecutionStack.push(
new TernaryOperation(jumpCondition, beforeStack.peek(), newExecutionStack.pop()));
}
return newExecutionStack;
}
public String getStringValue(int level) {
return new StringBuffer()
.append(CodeUtil.getIndent(level))
.append("duplicateMovieClip(")
.append(source.getStringValue(level))
.append(",")
.append(target.getStringValue(level))
.append(",")
.append(depth.getStringValue(level))
.append(")")
.toString();
}
