/**
* Helper for getOperandProtectedForLowerPrec() and getOperandProtectedForLowerOrEqualPrec().
*
* @param index The index of the operand to get.
* @param shouldProtectEqualPrec Whether to proect the operand if it is an operator with equal
* precedence to this operator.
* @return The source string for the operand at the given index, possibly protected by surrounding
* parentheses.
*/
private String getOperandProtectedForPrecHelper(int index, boolean shouldProtectEqualPrec) {
int thisOpPrec = this.getOperator().getPrecedence();
ExprNode child = getChild(index);
boolean shouldProtect;
if (child instanceof OperatorNode) {
int childOpPrec = ((OperatorNode) child).getOperator().getPrecedence();
shouldProtect = shouldProtectEqualPrec ? childOpPrec <= thisOpPrec : childOpPrec < thisOpPrec;
} else {
shouldProtect = false;
}
if (shouldProtect) {
return "(" + child.toSourceString() + ")";
} else {
return child.toSourceString();
}
}
@Override
public String toSourceString() {
StringBuilder sourceSb = new StringBuilder();
sourceSb.append('[');
boolean isFirst = true;
for (ExprNode child : getChildren()) {
if (isFirst) {
isFirst = false;
} else {
sourceSb.append(", ");
}
sourceSb.append(child.toSourceString());
}
sourceSb.append(']');
return sourceSb.toString();
}
