internal override void EmitInit(CodeGenerator cg)
{
// TODO: check callable, iterable
// TODO: ? if (cg.HasUnoptimizedLocals && $this) <locals>["this"] = ...
var srcparam = _symbol as SourceParameterSymbol;
if (srcparam != null)
{
var srcplace = new ParamPlace(_symbol);
var routine = srcparam.Routine;
if (cg.HasUnoptimizedLocals)
{
Debug.Assert(cg.LocalsPlaceOpt != null);
// copy parameter to <locals>[Name]
// <locals>[name] = value
cg.LocalsPlaceOpt.EmitLoad(cg.Builder); // <locals>
cg.EmitIntStringKey(new BoundLiteral(this.Name)); // [key]
cg.EmitConvertToPhpValue(srcplace.EmitLoad(cg.Builder), 0); // value
cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpArray.SetItemValue_IntStringKey_PhpValue);
//
_isUnoptimized = true;
}
else
{
// TODO: copy parameter by value in case of PhpValue, Array, PhpString
// create local variable in case of parameter type is not enough for its use within routine
if (_symbol.Type != cg.CoreTypes.PhpValue && _symbol.Type != cg.CoreTypes.PhpAlias)
{
var tmask = routine.ControlFlowGraph.GetLocalTypeMask(srcparam.Name);
var clrtype = cg.DeclaringCompilation.GetTypeFromTypeRef(routine, tmask);
if (clrtype != _symbol.Type) // Assert: only if clrtype is not covered by _symbol.Type
{
// TODO: performance warning
_lazyLocal = new BoundLocal(new SynthesizedLocalSymbol(routine, srcparam.Name, clrtype));
_lazyLocal.EmitInit(cg);
var localplace = _lazyLocal.Place(cg.Builder);
// <local> = <param>
localplace.EmitStorePrepare(cg.Builder);
cg.EmitConvert(srcplace.EmitLoad(cg.Builder), 0, clrtype);
localplace.EmitStore(cg.Builder);
}
}
}
}
}