/// <summary>
/// Writes a property accessor.
/// </summary>
/// <param name="context"></param>
/// <param name="propertyName">The property to access. Anything that can be converted to a string.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException"></exception>
public static JavascriptConversionContext WriteAccessor(
[NotNull] this JavascriptConversionContext context,
[NotNull] string propertyName)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (propertyName == null)
{
throw new ArgumentNullException(nameof(propertyName));
}
if (Regex.IsMatch(propertyName, @"^\w[\d\w]*$"))
{
context.GetWriter().Write('.');
context.GetWriter().Write(propertyName);
}
else if (Regex.IsMatch(propertyName, @"^\d+$"))
{
context.GetWriter().Write('[');
context.GetWriter().Write(propertyName);
context.GetWriter().Write(']');
}
else
{
context.GetWriter().Write('[');
context.GetWriter().WriteLiteral(propertyName);
context.GetWriter().Write(']');
}
return(context);
}
/// <summary>
/// Writes many expression nodes, separated by the given separator.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="separator">Separator to be used.</param>
/// <param name="nodes">A list of nodes to write.</param>
/// <returns>The Javascript conversion context itself, to allow fluent style rendering.</returns>
public static JavascriptConversionContext WriteMany(
this JavascriptConversionContext context,
char separator,
params Expression[] nodes)
{
return(WriteMany(context, separator, (IEnumerable <Expression>)nodes));
}
/// <summary>
/// Writes a single character.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="ch">Character to write.</param>
/// <returns>The Javascript conversion context itself, to allow fluent style rendering.</returns>
public static JavascriptConversionContext Write(this JavascriptConversionContext context, char ch)
{
var writer = context.GetWriter();
writer.Write(ch);
return(context);
}
/// <summary>
/// Writes many expressions isolated from outer and inner operations by opening, closing and separator characters.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="opening">First character to render, isolating from outer operation.</param>
/// <param name="closing">Last character to render, isolating from outer operation.</param>
/// <param name="separator">Separator character to render, isolating one parameter from the other.</param>
/// <param name="nodes">Nodes to render.</param>
public static JavascriptConversionContext WriteManyIsolated(
this JavascriptConversionContext context,
char opening,
char closing,
char separator,
params Expression[] nodes)
{
return(WriteManyIsolated(context, opening, closing, separator, (IEnumerable <Expression>)nodes));
}
/// <summary>
/// Writes many expressions isolated from outer and inner operations by opening, closing and separator characters.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="opening">First character to render, isolating from outer operation.</param>
/// <param name="closing">Last character to render, isolating from outer operation.</param>
/// <param name="separator">Separator character to render, isolating one parameter from the other.</param>
/// <param name="nodes">Nodes to render.</param>
public static JavascriptConversionContext WriteManyIsolated(
this JavascriptConversionContext context,
char opening,
char closing,
char separator,
IEnumerable <Expression> nodes)
{
var writer = context.GetWriter();
writer.Write(opening);
using (writer.Operation(0))
context.WriteMany(separator, nodes);
writer.Write(closing);
return(context);
}
/// <summary>
/// Writes many expression nodes, separated by the given separator.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="separator">Separator to be used.</param>
/// <param name="nodes">A list of nodes to write.</param>
/// <returns>The Javascript conversion context itself, to allow fluent style rendering.</returns>
public static JavascriptConversionContext WriteMany(
this JavascriptConversionContext context,
char separator,
IEnumerable <Expression> nodes)
{
var writer = context.GetWriter();
var count = 0;
foreach (var node in nodes)
{
if (count++ > 0)
{
writer.Write(separator);
}
context.Visitor.Visit(node);
}
return(context);
}
/// <summary> /// When overridden allows the control of expression nodes to JavaScript code. /// </summary> /// <param name="context">JavaScript conversion context, that allows to write text to the output stream.</param> public abstract void ConvertToJavascript(JavascriptConversionContext context);
/// <summary>
/// Writes many expression nodes, separated by the given separator.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="node">The node to write.</param>
/// <returns>The Javascript conversion context itself, to allow fluent style rendering.</returns>
public static JavascriptConversionContext Write(this JavascriptConversionContext context, Expression node)
{
context.Visitor.Visit(node);
return(context);
}
public static JavascriptConversionContext WriteFormat(this JavascriptConversionContext context, string format, params object[] values)
{
context.GetWriter().WriteFormat(format, values);
return(context);
}
/// <summary>
/// Writes a string to the output.
/// </summary>
/// <param name="context">The Javascript conversion context.</param>
/// <param name="str">String to write.</param>
/// <returns>The Javascript conversion context itself, to allow fluent style rendering.</returns>
public static JavascriptConversionContext Write(this JavascriptConversionContext context, string str)
{
context.GetWriter().Write(str);
return(context);
}
/// <summary>
/// Encloses the following write calls in an operation context,
/// that will automatically write precedence operators '(' and ')' if needed,
/// depening on the operations stack.
/// <para>
/// For example, a sum (+)
/// inside a multiplication (*) requires the precedence operators.
/// </para>
/// <para>
/// To isolate operations, you can pass 0 to the <paramref name="op"/> parameter,
/// making neither the current nor the inner operation need precedence operators.
/// </para>
/// </summary>
/// <param name="context">Context of the conversion.</param>
/// <param name="op">The operation that you want to render in the scope.</param>
/// <returns>A disposable object that renders the ending ')' when needed.</returns>
public static IDisposable Operation(
this JavascriptConversionContext context,
JavascriptOperationTypes op)
{
return(context.GetWriter().Operation(op));
}