void EmitInit(Emit.PEModuleBuilder module, DiagnosticBag diagnostic, PhpCompilation compilation, SynthesizedStaticLocHolder holder, BoundExpression initializer)
{
var loctype = holder.ValueField.Type;
bool requiresContext = initializer != null && initializer.RequiresContext;
if (requiresContext)
{
// emit Init only if it needs Context
holder.EmitInit(module, (il) =>
{
var cg = new CodeGenerator(il, module, diagnostic, OptimizationLevel.Release, false,
holder.ContainingType, new ArgPlace(compilation.CoreTypes.Context, 1), new ArgPlace(holder, 0));
var valuePlace = new FieldPlace(cg.ThisPlaceOpt, holder.ValueField);
// Template: this.value = <initilizer>;
valuePlace.EmitStorePrepare(il);
cg.EmitConvert(initializer, valuePlace.TypeOpt);
valuePlace.EmitStore(il);
//
il.EmitRet(true);
});
}
// default .ctor
holder.EmitCtor(module, (il) =>
{
if (!requiresContext)
{
// emit default value only if it won't be initialized by Init above
var cg = new CodeGenerator(il, module, diagnostic, OptimizationLevel.Release, false,
holder.ContainingType, null, new ArgPlace(holder, 0));
var valuePlace = new FieldPlace(cg.ThisPlaceOpt, holder.ValueField);
// Template: this.value = default(T);
valuePlace.EmitStorePrepare(il);
if (initializer != null)
{
cg.EmitConvert(initializer, valuePlace.TypeOpt);
}
else
{
cg.EmitLoadDefault(valuePlace.TypeOpt, 0);
}
valuePlace.EmitStore(il);
}
//
il.EmitRet(true);
});
}
internal SynthesizedStaticLocHolder DeclareStaticLocalHolder(string locName, TypeSymbol locType)
{
var holder = new SynthesizedStaticLocHolder(_cg.Routine, locName, locType);
_cg.Module.SynthesizedManager.AddNestedType(_container, holder);
return holder;
}
internal override void EmitInit(CodeGenerator cg)
{
// variable holder class
_holder = cg.Factory.DeclareStaticLocalHolder(this.Name, (TypeSymbol)this.Variable.Type);
// local with its instance
var symbol = new SynthesizedLocalSymbol(cg.Routine, this.Name, _holder);
var loc = cg.Builder.LocalSlotManager.DeclareLocal(_holder, symbol, symbol.Name, SynthesizedLocalKind.OptimizerTemp, LocalDebugId.None, 0, LocalSlotConstraints.None, false, default(ImmutableArray<TypedConstant>), false);
_holderPlace = new LocalPlace(loc);
// place = holder.value
_place = new FieldPlace(_holderPlace, _holder.ValueField);
if (cg.HasUnoptimizedLocals)
{
// TODO reference to <locals>
}
}