private static string ExpressionToString(Type modelType, Expression expression)
{
var data = KnockoutExpressionData.CreateConstructorData();
data.Aliases[modelType.FullName] = "this";
return(KnockoutExpressionConverter.Convert(expression, data));
}
private static string GetGetExpression(Type modelType, object model, MethodInfo method)
{
var expression = method.Invoke(model, null) as Expression;
var data = KnockoutExpressionData.CreateConstructorData();
data.Aliases[modelType.FullName] = "this";
return(KnockoutExpressionConverter.Convert(expression, data));
}
public override string GetKnockoutExpression(KnockoutExpressionData data)
{
if (string.IsNullOrWhiteSpace(Value))
{
Value = "$data";
}
return($"{Name}: '{Value}'");
}
private string LocalConvert(Expression expression, KnockoutExpressionData convertData = null)
{
lambdaFrom.Clear();
data = convertData ?? new KnockoutExpressionData();
data = data.Clone();
if (data.InstanceNames == null || data.InstanceNames.Length == 0)
data.InstanceNames = new[] { "" };
return GetterSetterCorrecting(Visit(expression));
}
public KnockoutExpressionData Clone()
{
var data = new KnockoutExpressionData();
if (InstanceNames != null)
data.InstanceNames = InstanceNames.Clone() as string[];
if (Aliases != null)
foreach (var pair in Aliases)
data.Aliases[pair.Key] = pair.Value;
data.NeedBracketsForAllMembers = NeedBracketsForAllMembers;
return data;
}
private string LocalConvert(Expression expression, KnockoutExpressionData convertData = null)
{
lambdaFrom.Clear();
data = convertData ?? new KnockoutExpressionData();
data = data.Clone();
if (data.InstanceNames == null || data.InstanceNames.Length == 0)
{
data.InstanceNames = new[] { "" }
}
;
return(GetterSetterCorrecting(Visit(expression)));
}
protected KnockoutExpressionData CreateData()
{
var data = new KnockoutExpressionData();
if (InstanceNames != null)
{
data.InstanceNames = InstanceNames;
}
if (Aliases != null)
{
data.Aliases = Aliases;
}
return(data.Clone());
}
public override string GetKnockoutExpression(KnockoutExpressionData data)
{
string value = KnockoutExpressionConverter.Convert(ExpressionRaw, data);
if (string.IsNullOrWhiteSpace(value))
value = "$data";
var sb = new StringBuilder();
sb.Append(Name);
sb.Append(" : ");
sb.Append(value);
return sb.ToString();
}
public override string GetKnockoutExpression(KnockoutExpressionData data)
{
var builder = new StringBuilder();
builder.Append(Name);
builder.Append(" : ");
if (NeedQuotes)
builder.Append('\'');
builder.Append(Value);
if (NeedQuotes)
builder.Append('\'');
return builder.ToString();
}
public override string GetKnockoutExpression(KnockoutExpressionData data)
{
var sb = new StringBuilder();
sb.Append(Name);
sb.Append(" : {");
for (int i = 0; i < subItems.Count; i++)
{
if (i != 0)
sb.Append(",");
sb.Append(subItems[i].GetKnockoutExpression(data));
}
sb.Append('}');
return sb.ToString();
}
public override string GetKnockoutExpression(KnockoutExpressionData data)
{
var builder = new StringBuilder();
builder.Append(Name);
builder.Append(" : ");
if (NeedQuotes)
{
builder.Append('\'');
}
builder.Append(Value);
if (NeedQuotes)
{
builder.Append('\'');
}
return(builder.ToString());
}
public KnockoutExpressionData Clone()
{
var data = new KnockoutExpressionData();
if (InstanceNames != null)
{
data.InstanceNames = InstanceNames.Clone() as string[];
}
if (Aliases != null)
{
foreach (var pair in Aliases)
{
data.Aliases[pair.Key] = pair.Value;
}
}
data.NeedBracketsForAllMembers = NeedBracketsForAllMembers;
return(data);
}
public override string GetKnockoutExpression(KnockoutExpressionData data)
{
var builder = new StringBuilder();
builder.Append(Name);
builder.Append(": {");
for (int i = 0; i < subItems.Count; i++)
{
if (i != 0)
{
builder.Append(", ");
}
builder.Append(subItems[i].GetKnockoutExpression(data));
}
builder.Append('}');
return(builder.ToString());
}
public KnockoutTagBuilder <TModel> DropDownList <TItem>(Expression <Func <TModel, IList <TItem> > > options, object htmlAttributes = null, Expression <Func <TItem, object> > optionsText = null)
{
var tagBuilder = new KnockoutTagBuilder <TModel>(Context, "select", InstanceNames, Aliases);
tagBuilder.ApplyAttributes(htmlAttributes);
if (options != null)
{
tagBuilder.Options(Expression.Lambda <Func <TModel, IEnumerable> >(options.Body, options.Parameters));
}
if (optionsText != null)
{
var data = new KnockoutExpressionData {
InstanceNames = new[] { "item" }
};
tagBuilder.OptionsText("function(item) { return " + KnockoutExpressionConverter.Convert(optionsText, data) + "; }");
}
return(tagBuilder);
}
public void InstanceNamesTest01()
{
var data = new KnockoutExpressionData { InstanceNames = new[] { "$parent" } };
RunTest((Expression<Func<TestModel, string>>)(model => model.A), "$parent.A", data);
}
public static string Convert(Expression expression, KnockoutExpressionData convertData = null)
{
var converter = new KnockoutExpressionConverter();
return(converter.LocalConvert(expression, convertData));
}
public void InstanceNamesTest02()
{
var data = new KnockoutExpressionData { InstanceNames = new[] { "X", "Y", "Z" } };
RunTest((Expression<Func<TestModel, TestModel, TestModel, string>>)((x, y, z) => x.A + y.B + z.C), "((X.A()+Y.B())+Z.C())", data);
}
private void RunTest(Expression expression, string expected, KnockoutExpressionData data = null)
{
string actual = KnockoutExpressionConverter.Convert(expression, data);
AssertStringEquivalent(expected, actual);
}
public abstract string GetKnockoutExpression(KnockoutExpressionData data);
public abstract string GetKnockoutExpression(KnockoutExpressionData data);
public static string Convert(Expression expression, KnockoutExpressionData convertData = null)
{
var converter = new KnockoutExpressionConverter();
return converter.LocalConvert(expression, convertData);
}
