public EventProxyCodeGen(CodeGenerator cg, EventBindingInfo eventBindingInfo)
{
this.cg = cg;
this.eventBindingInfo = eventBindingInfo;
var eventInfo = this.eventBindingInfo.eventInfo;
var declaringType = eventInfo.DeclaringType;
var tsFieldVar = BindingManager.GetTSVariable(eventBindingInfo.regName);
// this.cg.cs.AppendLine("DuktapeDLL.duk_push_this(ctx);");
this.cg.cs.AppendLine($"duk_add_event_instanced(ctx, \"{tsFieldVar}\", {this.eventBindingInfo.adderName}, {this.eventBindingInfo.removerName}, -1);");
this.cg.cs.AppendLine("DuktapeDLL.duk_remove(ctx, -2);");
this.cg.cs.AppendLine("return 1;");
}
public string AppendGetThisCS(EventBindingInfo bindingInfo)
{
var isStatic = bindingInfo.isStatic;
var declaringType = bindingInfo.declaringType;
var caller = "";
if (isStatic)
{
caller = this.bindingManager.GetCSTypeFullName(declaringType, false);
}
else
{
caller = "self";
this.cs.AppendLine($"{this.bindingManager.GetCSTypeFullName(declaringType)} {caller};");
// this.cs.AppendLine($"DuktapeDLL.duk_push_this(ctx);");
var getter = this.bindingManager.GetScriptObjectGetter(declaringType, "ctx", "this_obj", caller);
this.cs.AppendLine("{0};", getter);
// this.cs.AppendLine($"DuktapeDLL.duk_pop(ctx);");
}
return(caller);
}
public EventRemoverCodeGen(CodeGenerator cg, EventBindingInfo bindingInfo)
{
this.cg = cg;
this.bindingInfo = bindingInfo;
var eventInfo = this.bindingInfo.eventInfo;
var declaringType = eventInfo.DeclaringType;
var caller = this.cg.AppendGetThisCS(bindingInfo);
this.cg.cs.AppendLine("{0} value;", this.cg.bindingManager.GetCSTypeFullName(eventInfo.EventHandlerType));
var getter = this.cg.bindingManager.GetScriptObjectGetter(eventInfo.EventHandlerType, "ctx", "argv[0]", "value");
this.cg.cs.AppendLine("{0};", getter);
this.cg.cs.AppendLine("{0}.{1} -= value;", caller, eventInfo.Name);
if (declaringType.IsValueType && !eventInfo.GetAddMethod().IsStatic)
{
// 非静态结构体属性修改, 尝试替换实例
this.cg.cs.AppendLine($"js_rebind_this(ctx, this_obj, {caller});");
}
this.cg.cs.AppendLine("return 0;");
}