package railo.runtime.op;
import railo.runtime.PageContext;
import railo.runtime.interpreter.VariableInterpreter;
import railo.runtime.type.Collection;
import railo.runtime.type.KeyImpl;
import railo.runtime.type.scope.Scope;
import railo.runtime.util.VariableUtilImpl;
public class Elvis {
/**
* called by the Elvis operator from generated bytecode
* @param pc
* @param scope
* @param varNames
* @return
*/
public static boolean operate(PageContext pc , double scope,Collection.Key[] varNames) {
return _operate(pc, scope, varNames,0);
}
/**
* called by the Elvis operator from generated bytecode
* @param pc
* @param scope
* @param varNames
* @return
*/
public static boolean operate(PageContext pc , double scope,String[] varNames) {
return _operate(pc, scope, KeyImpl.toKeyArray(varNames),0);
}
/**
* called by the Elvis operator from the interpreter
* @param pc
* @param scope
* @param varNames
* @return
*/
public static boolean operate(PageContext pc , String[] varNames) {
int scope = VariableInterpreter.scopeString2Int(varNames[0]);
return _operate(pc, scope, KeyImpl.toKeyArray(varNames), scope==Scope.SCOPE_UNDEFINED?0:1);
}
private static boolean _operate(PageContext pc , double scope,Collection.Key[] varNames, int startIndex) {
Object defVal=null;
try {
Object coll =VariableInterpreter.scope(pc, (int)scope, false);
//Object coll =pc.scope((int)scope);
VariableUtilImpl vu = ((VariableUtilImpl)pc.getVariableUtil());
for(int i=startIndex;i<varNames.length;i++) {
coll=vu.getCollection(pc,coll,varNames[i],defVal);
if(coll==defVal)return false;
}
} catch (Throwable t) {
return false;
}
return true;
}
}