public boolean apply(ASTNode node) {
// stops when found - that's the reason to use ApplyAll
if (exists) return false;
if (node.getType() == ASTNode.CLASS_DECLARATION
|| node.getType() == ASTNode.FUNCTION_DECLARATION) {
isGlobalScope = false;
node.childrenAccept(this);
isGlobalScope = true;
return false;
} else if (node instanceof Identifier) {
Identifier identifier = (Identifier) node;
if (identifier.getParent().getType() == ASTNode.VARIABLE) {
Variable variable = (Variable) identifier.getParent();
if (variable.isDollared() && isGlobalScope && name.equals(identifier.getName())) {
exists = true;
}
}
} else if (node.getType() == ASTNode.GLOBAL_STATEMENT) {
GlobalStatement globalStatement = (GlobalStatement) node;
final List<Variable> variables = globalStatement.variables();
for (final Variable variable : variables) {
final Expression variableName = variable.getName();
if (variable.isDollared() && variableName instanceof Identifier) {
Identifier identifier = (Identifier) variableName;
if (name.equals(identifier.getName())) {
exists = true;
}
}
}
}
return true;
}
/**
* @param targetIdentifier
* @param variable
* @param isGlobal
* @param globalStatement
* @return true is the
*/
private static boolean checkGlobal(
Identifier targetIdentifier, final GlobalStatement globalStatement) {
final List<Variable> variables = globalStatement.variables();
for (final Variable current : variables) {
// if the variable is reflection (eg. global $$var) skip
if (current.getName().getType() == ASTNode.IDENTIFIER) {
Identifier id = (Identifier) current.getName();
// variables are case sensative
if (id.getName().equals(targetIdentifier.getName())) {
return true;
}
}
}
return false;
}