public IXamlLabel DefineLabel()
{
var label = _inner.DefineLabel();
_labels[label] = new LabelInfo();
return(label);
}
public XamlILNodeEmitResult Emit(IXamlAstNode node, XamlEmitContext <IXamlILEmitter, XamlILNodeEmitResult> context, IXamlILEmitter codeGen)
{
if (!(node is HandleRootObjectScopeNode))
{
return(null);
}
var types = context.GetAvaloniaTypes();
var next = codeGen.DefineLabel();
var scopeField = context.RuntimeContext.ContextType.Fields.First(f =>
f.Name == AvaloniaXamlIlLanguage.ContextNameScopeFieldName);
using (var local = codeGen.LocalsPool.GetLocal(types.StyledElement))
{
codeGen
.Isinst(types.StyledElement)
.Dup()
.Stloc(local.Local)
.Brfalse(next)
.Ldloc(local.Local)
.Ldloc(context.ContextLocal)
.Ldfld(scopeField)
.EmitCall(types.NameScopeSetNameScope, true)
.MarkLabel(next)
.Ldloc(context.ContextLocal)
.Ldfld(scopeField)
.EmitCall(types.INameScopeComplete, true);
}
return(XamlILNodeEmitResult.Void(1));
}
public IXamlLabel DefineLabel()
{
var label = _inner.DefineLabel();
_unmarkedLabels.Add(label, null);//, Environment.StackTrace);
return(label);
}
public XamlILNodeEmitResult Emit(IXamlAstNode node, XamlEmitContext <IXamlILEmitter, XamlILNodeEmitResult> context, IXamlILEmitter codeGen)
{
if (!(node is HandleRootObjectScopeNode))
{
return(null);
}
var controlType = context.Configuration.TypeSystem.FindType("Robust.Client.UserInterface.Control");
var next = codeGen.DefineLabel();
var dontAbsorb = codeGen.DefineLabel();
var end = codeGen.DefineLabel();
var contextScopeField = context.RuntimeContext.ContextType.Fields.First(f =>
f.Name == XamlCompiler.ContextNameScopeFieldName);
var controlNameScopeField = controlType.Fields.First(f => f.Name == "NameScope");
var nameScopeType = context.Configuration.TypeSystem
.FindType("Robust.Client.UserInterface.XAML.NameScope");
var nameScopeCompleteMethod = nameScopeType.Methods.First(m => m.Name == "Complete");
var nameScopeAbsorbMethod = nameScopeType.Methods.First(m => m.Name == "Absorb");
using (var local = codeGen.LocalsPool.GetLocal(controlType))
{
codeGen
.Isinst(controlType)
.Dup()
.Stloc(local.Local) //store control in local field
.Brfalse(next) //if control is null, move to next (this should never happen but whatev, avalonia does it)
.Ldloc(context.ContextLocal)
.Ldfld(contextScopeField)
.Ldloc(local.Local) //load control from local field
.Ldfld(controlNameScopeField) //load namescope field from control
.EmitCall(nameScopeAbsorbMethod, true)
.Ldloc(local.Local) //load control
.Ldloc(context.ContextLocal) //load contextObject
.Ldfld(contextScopeField) //load namescope field from context obj
.Stfld(controlNameScopeField) //store namescope field in control
.MarkLabel(next)
.Ldloc(context.ContextLocal)
.Ldfld(contextScopeField)
.EmitCall(nameScopeCompleteMethod, true); //set the namescope as complete
}
return(XamlILNodeEmitResult.Void(1));
}
