public void PushParameters(ExpressionList parameters, int number)
{
int parametersPushed = 0;
// push parameters available, until desired number is reached
while (parametersPushed < number && parametersPushed < parameters.Count())
Visit(parameters.Get(parametersPushed++));
// if not enough parameters were available, fill up with Nulls
while (parametersPushed < number) {
ilGen.Emit(OpCodes.Newobj, PHPNull.GetConstructor(Type.EmptyTypes));
parametersPushed++;
}
}
public void InvokeStaticFunction(string className, string functionName, ExpressionList parameters, int line, int column)
{
SymbolTableEntry cdEntry = SymbolTable.getInstance().lookupGlobal(className.ToLower(), SymbolTable.CLASS);
CLASS_DECLARATION cd = (CLASS_DECLARATION)cdEntry.node;
CLASS_DECLARATION tmpCD = cd;
SymbolTableEntry fdEntry = tmpCD.scope.lookup(functionName, SymbolTable.FUNCTION);
while (fdEntry == null) {
if (tmpCD.extends == null)
break;
SymbolTableEntry parentCdEntry = SymbolTable.getInstance().lookupGlobal(tmpCD.extends.ToLower(), SymbolTable.CLASS);
tmpCD = (CLASS_DECLARATION)parentCdEntry.node;
fdEntry = tmpCD.scope.lookup(functionName, SymbolTable.FUNCTION);
if (fdEntry != null && !((FUNCTION_DECLARATION)fdEntry.node).modifiers.Contains(Modifiers.STATIC)) {
Report.Error(215, functionName, line, column);
ilGen.Emit(OpCodes.Newobj, PHPNull.GetConstructor(Type.EmptyTypes));
return;
}
if (fdEntry != null && ((FUNCTION_DECLARATION)fdEntry.node).modifiers.Contains(Modifiers.PRIVATE)) {
Report.Error(217, functionName, line, column);
ilGen.Emit(OpCodes.Newobj, PHPNull.GetConstructor(Type.EmptyTypes));
return;
}
}
if (fdEntry == null) {
Report.Error(216, functionName, line, column);
ilGen.Emit(OpCodes.Newobj, PHPNull.GetConstructor(Type.EmptyTypes));
return;
}
FUNCTION_DECLARATION fd = (FUNCTION_DECLARATION)fdEntry.node;
if (!fd.modifiers.Contains(Modifiers.STATIC)) {
Report.Error(215, functionName, line, column);
ilGen.Emit(OpCodes.Newobj, PHPNull.GetConstructor(Type.EmptyTypes));
return;
}
// pass parameters (only as many as needed)
int parametersPassedActually = (int)Math.Min(fd.parameters.Count, parameters.Count());
for (int i = 0; i < parametersPassedActually; i++) {
PARAMETER_DECLARATION pd = (PARAMETER_DECLARATION)fd.parameters[i];
Expression expr = (Expression)parameters.Get(i);
Visit(expr);
// clone if value semantics is desired
if (!pd.by_reference && !(expr is REFERENCE))
ilGen.Emit(OpCodes.Call, PHPCoreLang.GetMethod("Clone", new Type[] { PHPMixed }));
}
// if less parameters actually passed then necessary, pass Null objects instead
for (int i = parametersPassedActually; i < fd.parameters.Count; i++) {
PARAMETER_DECLARATION pd = (PARAMETER_DECLARATION)fd.parameters[i];
if (pd.default_value == null)
Report.Warn(300, System.Convert.ToString(i + 1), line, column);
ilGen.Emit(OpCodes.Newobj, PHPNull.GetConstructor(Type.EmptyTypes));
}
// ensure parameters passed by reference are variables
for (int i = 0; i < parametersPassedActually; i++) {
PARAMETER_DECLARATION pd = (PARAMETER_DECLARATION)fd.parameters[i];
Expression variableSupplied = (Expression)parameters.Get(i);
if (pd.by_reference || variableSupplied is REFERENCE)
if (!(variableSupplied is VARIABLE || variableSupplied is REFERENCE))
Report.Error(301, System.Convert.ToString(i + 1), line, column);
}
// add function call to call trace
ilGen.Emit(OpCodes.Ldstr, cd.name + "->" + fd.name);
ilGen.Emit(OpCodes.Call, PHPCoreRuntime.GetMethod("AddFunctionCallToTrace", new Type[] { typeof(string) }));
// call
MethodBuilder mb = fd.mthBld;
ilGen.Emit(OpCodes.Call, mb);
// remove function call from call trace
ilGen.Emit(OpCodes.Call, PHPCoreRuntime.GetMethod("RemoveFunctionCallFromTrace", Type.EmptyTypes));
}
