protected override ICode VisitDefaultValue(ExprDefaultValue e)
{
var value = DefaultValuer.Get(e.Type, this.resolver.FieldNames);
this.js.Append(value);
return(e);
}
public static Expr GetValueOrDefault(ICall call)
{
var ctx = call.Ctx;
var @this = call.Obj.Named("this");
var @default = new ExprDefaultValue(ctx, call.Type).Named("default");
return(new ExprJsExplicit(ctx, "this || default", call.Type, @this, @default));
}
public static Stmt Clear(Ctx ctx)
{
var array = ctx.MethodParameter(0);
var index = ctx.MethodParameter(1).Named("index");
var length = ctx.MethodParameter(2).Named("length");
var arrayElementType = ((ArrayType)array.Type).ElementType;
var i = new ExprVarLocal(ctx, ctx.Int32).Named("i");
var value = new ExprDefaultValue(ctx, arrayElementType).Named("value");
var js = "for (i=0; i<length; i++) a[index+i]=value;";
var stmt = new StmtJsExplicit(ctx, js, i, length, array.Named("a"), index, value);
return(stmt);
}
public Stmt GetImpl(Ctx ctx)
{
var count = ctx.MethodParameter(0, "count");
var elType = ((GenericInstanceMethod)ctx.MRef).GenericArguments[0];
var arrayType = elType.MakeArray();
var elTypeExpr = new ExprJsTypeVarName(ctx, arrayType).Named("type");
var defaultValue = new ExprDefaultValue(ctx, elType).Named("defaultValue");
var a = ctx.Local(arrayType, "a");
var i = ctx.Local(ctx.Int32, "i");
var js = @"
a = new Array(count);
a._ = type;
for (i = count - 1; i >= 0; i--)
a[i] = defaultValue;
return a;
";
var stmt = new StmtJsExplicit(ctx, js, count, elTypeExpr, defaultValue, a, i);
return(stmt);
}
protected virtual ICode VisitDefaultValue(ExprDefaultValue e)
{
this.ThrowOnNoOverride();
return(e);
}
protected override ICode VisitDefaultValue(ExprDefaultValue e)
{
this.types.Add(e.Type);
return(base.VisitDefaultValue(e));
}
protected override ICode VisitDefaultValue(ExprDefaultValue e)
{
this.code.AppendFormat("default({0})", e.Type.Name);
return(e);
}
