private ParametrizedCode FormatJavascript(JsExpression node, bool allowObservableResult = true)
{
var expr = new JsParenthesizedExpression(node.Clone());
expr.AcceptVisitor(new KnockoutObservableHandlingVisitor(allowObservableResult));
JavascriptNullCheckAdder.AddNullChecks(expr);
expr = new JsParenthesizedExpression((JsExpression)JsTemporaryVariableResolver.ResolveVariables(expr.Expression.Detach()));
return((StartsWithStatementLikeExpression(expr.Expression) ? expr : expr.Expression).FormatParametrizedScript(niceMode: configuration.Debug));
}
public override JsExpression GetJsTranslation(JsExpression dataContext)
{
JsExpression index() => dataContext.Clone().Member("$index").Invoke();
return(new JsObjectExpression(
new JsObjectProperty(nameof(BindingCollectionInfo.Index), index()),
new JsObjectProperty(nameof(BindingCollectionInfo.IsFirst), new JsBinaryExpression(index(), BinaryOperatorType.Equal, new JsLiteral(0))),
new JsObjectProperty(nameof(BindingCollectionInfo.IsOdd), new JsBinaryExpression(new JsBinaryExpression(index(), BinaryOperatorType.Modulo, new JsLiteral(2)), BinaryOperatorType.Equal, new JsLiteral(1))),
new JsObjectProperty(nameof(BindingCollectionInfo.IsEven), new JsBinaryExpression(new JsBinaryExpression(index(), BinaryOperatorType.Modulo, new JsLiteral(2)), BinaryOperatorType.Equal, new JsLiteral(0)))
));
}
JsExpression CreateAnonymousJsDelegate(JsExpression instanceContext, JsExpression func)
{
if (instanceContext == null)
{
return(func);
}
return(new JsInvocationExpression {
Member = new JsMemberExpression {
Name = "$CreateAnonymousDelegate"
}, Arguments = new List <JsExpression> {
instanceContext.Clone(), func
}
});
}
