package railo.runtime.functions.dynamicEvaluation;
import railo.runtime.PageContext;
import railo.runtime.PageContextImpl;
import railo.runtime.exp.PageException;
import railo.runtime.ext.function.Function;
import railo.runtime.interpreter.CFMLExpressionInterpreter;
import railo.runtime.op.Caster;
import railo.runtime.type.scope.Argument;
import railo.runtime.type.scope.CallerImpl;
import railo.runtime.type.scope.Local;
import railo.runtime.type.scope.LocalNotSupportedScope;
import railo.runtime.type.scope.Scope;
import railo.runtime.type.scope.Undefined;
import railo.runtime.type.scope.Variables;
/**
* Implements the CFML Function evaluate
*/
public final class Evaluate implements Function {
private static final long serialVersionUID = 2259041678381553989L;
public static Object call(PageContext pc , Object[] objs) throws PageException {
return call(pc, objs, false);
}
public static Object call(PageContext pc , Object[] objs, boolean preciseMath) throws PageException {
// define a ohter enviroment for the function
if(objs.length>1 && objs[objs.length-1] instanceof Scope){
// Variables Scope
Variables var=null;
Local lcl=null,cLcl=null;
Argument arg=null,cArg=null;
if(objs[objs.length-1] instanceof Variables){
var=(Variables) objs[objs.length-1];
}
else if(objs[objs.length-1] instanceof CallerImpl){
CallerImpl ci = ((CallerImpl) objs[objs.length-1]);
var=ci.getVariablesScope();
lcl = ci.getLocalScope();
arg = ci.getArgumentsScope();
}
if(var!=null){
Variables cVar=pc.variablesScope();
pc.setVariablesScope(var);
if(lcl!=null && !(lcl instanceof LocalNotSupportedScope)) {
cLcl = pc.localScope();
cArg=pc.argumentsScope();
pc.setFunctionScopes(lcl, arg);
}
try{
return _call(pc, objs,objs.length-1,preciseMath);
}
finally{
pc.setVariablesScope(cVar);
if(cLcl!=null) pc.setFunctionScopes(cLcl, cArg);
}
}
// Undefined Scope
else if(objs[objs.length-1] instanceof Undefined) {
PageContextImpl pci=(PageContextImpl) pc;
Undefined undefined=(Undefined) objs[objs.length-1];
boolean check=undefined.getCheckArguments();
Variables orgVar=pc.variablesScope();
Argument orgArgs=pc.argumentsScope();
Local orgLocal=pc.localScope();
pci.setVariablesScope(undefined.variablesScope());
if(check)pci.setFunctionScopes(undefined.localScope(), undefined.argumentsScope());
try{
return _call(pc, objs,objs.length-1,preciseMath);
}
finally{
pc.setVariablesScope(orgVar);
if(check)pci.setFunctionScopes(orgLocal,orgArgs);
}
}
}
return _call(pc,objs,objs.length,preciseMath);
}
private static Object _call(PageContext pc , Object[] objs,int len, boolean preciseMath) throws PageException {
Object rst=null;
for(int i=0;i<len;i++) {
if(objs[i] instanceof Number) rst= objs[i];
else rst= new CFMLExpressionInterpreter().interpret(pc,Caster.toString(objs[i]), preciseMath);
}
return rst;
}
}