private void WriteInvocation(TextWriter writer, CakeScriptAlias alias)
{
// Has return type?
var hasReturnValue = !(alias.Method.ReturnType.Namespace.Name == "System" && alias.Method.ReturnType.Name == "Void");
if (hasReturnValue)
{
writer.Write("return ");
}
// Method name.
_typeEmitter.Write(writer, alias.Method.DeclaringType);
writer.Write(".");
writer.Write(alias.Method.Name);
// Generic arguments?
if (alias.Method.GenericParameters.Count > 0)
{
writer.Write("<");
writer.Write(string.Join(",", alias.Method.GenericParameters.Select(p => p.Name)));
writer.Write(">");
}
// Arguments
writer.Write("(");
WriteMethodParameters(writer, alias, invocation: true);
writer.Write(");");
}
public override void Generate(TextWriter writer, CakeScriptAlias alias)
{
if (alias == null)
{
throw new ArgumentNullException(nameof(alias));
}
Generate(new IndentedTextWriter(writer), alias);
}
protected static string GetObsoleteMessage(CakeScriptAlias alias)
{
var message = string.Concat(" ", alias.Obsolete.Message ?? string.Empty).TrimEnd();
if (string.IsNullOrWhiteSpace(message))
{
message = string.Empty;
}
message = $"The alias {alias.Method.Name} has been made obsolete.{message}";
return(message);
}
public void Generate(TextWriter writer, CakeScriptAlias alias)
{
if (alias.Type == ScriptAliasType.Method)
{
_methodGenerator.Generate(writer, alias);
}
else
{
_propertyGenerator.Generate(writer, alias);
}
}
public void Generate(TextWriter writer, CakeScriptAlias alias)
{
if (!_cache.TryGetValue(alias, out string result))
{
using (var w = new StringWriter())
{
_aliasGenerator.Generate(w, alias);
result = w.ToString();
_cache.Add(alias, result);
}
}
writer.Write(result);
}
private void WriteCachedInvocation(IndentedTextWriter writer, CakeScriptAlias alias)
{
// If
writer.Write("if (_");
writer.Write(alias.Method.Name);
writer.Write("==null)");
writer.WriteLine();
writer.Write("{");
using (writer.BeginScope())
{
// Assignment
writer.Write("_");
writer.Write(alias.Method.Name);
writer.Write(" = ");
WriteInvocation(writer, alias);
}
writer.Write("}");
}
private void WriteBackingField(TextWriter writer, CakeScriptAlias alias)
{
// Access modifier
writer.Write("private ");
// Return type
_typeEmitter.Write(writer, alias.Method.ReturnType);
if (alias.Method.ReturnType.IsValueType)
{
writer.Write("?");
}
writer.Write(" ");
// Name
writer.Write("_");
writer.Write(alias.Method.Name);
writer.Write(";");
writer.WriteLine();
}
private void WriteInvocation(IndentedTextWriter writer, CakeScriptAlias alias)
{
// Declaring type
_typeEmitter.Write(writer, alias.Method.DeclaringType);
writer.Write(".");
// Method name
writer.Write(alias.Method.Name);
// Generic arguments
if (alias.Method.GenericParameters.Count > 0)
{
writer.Write("<");
writer.Write(string.Join(",", alias.Method.GenericParameters));
writer.Write(">");
}
// Arguments
writer.Write("(Context);");
}
private void WriteMethodParameters(TextWriter writer, CakeScriptAlias alias, bool invocation)
{
var options = ParameterEmitOptions.Default;
if (invocation)
{
options = options | ParameterEmitOptions.Invocation;
}
var parameterResult = alias.Method.Parameters
.Select(p => string.Join(" ", _parameterEmitter.GetString(p, options)))
.ToList();
if (parameterResult.Count > 0)
{
parameterResult.RemoveAt(0);
if (invocation)
{
parameterResult.Insert(0, "Context");
}
writer.Write(string.Join(", ", parameterResult));
}
}
private void Generate(IndentedTextWriter writer, CakeScriptAlias alias)
{
// XML documentation
WriteDocs(writer, alias.Documentation);
// Access modifier
writer.Write("public ");
// Return type
if (alias.Method.ReturnType != null)
{
if (alias.Method.ReturnType.Namespace.Name == "System" && alias.Method.ReturnType.Name == "Void")
{
writer.Write("void");
}
else
{
_typeEmitter.Write(writer, alias.Method.ReturnType);
}
writer.Write(" ");
}
// Render the method signature.
writer.Write(alias.Method.Name);
// Generic arguments?
if (alias.Method.GenericParameters.Count > 0)
{
writer.Write("<");
writer.Write(string.Join(",", alias.Method.GenericParameters.Select(p => p.Name)));
writer.Write(">");
}
// Arguments
writer.Write("(");
WriteMethodParameters(writer, alias, invocation: false);
writer.Write(")");
// Generic constraints
if (alias.Method.GenericParameters.Count > 0)
{
foreach (var genericParameter in alias.Method.GenericParameters)
{
if (genericParameter.Constraints.Count > 0)
{
writer.Write(" where ");
writer.Write(genericParameter.Name);
writer.Write(" : ");
writer.Write(string.Join(",", genericParameter.Constraints));
}
}
}
// Block start
writer.WriteLine();
writer.Write("{");
using (writer.BeginScope())
{
// Method is obsolete?
var performInvocation = true;
if (alias.Obsolete != null)
{
var message = GetObsoleteMessage(alias);
if (alias.Obsolete.IsError)
{
// Error
performInvocation = false;
writer.Write($"throw new Cake.ScriptServer.CakeException(\"{message}\");");
}
else
{
// Warning
writer.Write($"Context.Log.Warning(\"Warning: {message}\");");
}
}
// Render the method invocation?
if (performInvocation)
{
if (alias.Obsolete != null)
{
writer.WriteLine();
writer.Write("#pragma warning disable 0618");
writer.WriteLine();
}
WriteInvocation(writer, alias);
if (alias.Obsolete != null)
{
writer.WriteLine();
writer.Write("#pragma warning restore 0618");
}
}
}
writer.Write("}");
}
public override void Generate(TextWriter writer, CakeScriptAlias alias)
{
Generate(new IndentedTextWriter(writer), alias);
}
public abstract void Generate(TextWriter writer, CakeScriptAlias alias);
private void Generate(IndentedTextWriter writer, CakeScriptAlias alias)
{
// XML documentation
WriteDocs(writer, alias.Documentation);
var shouldThrow = alias.Obsolete?.IsError ?? false;
if (alias.Cached && !shouldThrow)
{
WriteBackingField(writer, alias);
}
// Access modifier
writer.Write("public ");
// Return type
_typeEmitter.Write(writer, alias.Method.ReturnType);
writer.Write(" ");
// Name
writer.Write(alias.Method.Name);
writer.WriteLine();
writer.Write("{");
using (writer.BeginScope())
{
writer.Write("get");
writer.WriteLine();
writer.Write("{");
using (writer.BeginScope())
{
// Obsolete warning?
if (alias.Obsolete != null)
{
var message = GetObsoleteMessage(alias);
if (!alias.Obsolete.IsError)
{
writer.Write($"Context.Log.Warning(\"Warning: {message}\");");
writer.WriteLine();
}
}
if (shouldThrow)
{
var message = GetObsoleteMessage(alias);
writer.Write($"throw new Cake.ScriptServer.CakeException(\"{message}\");");
}
else if (alias.Cached)
{
WriteCachedInvocation(writer, alias);
// Return
writer.WriteLine();
writer.Write("return ");
writer.Write("_");
writer.Write(alias.Method.Name);
if (alias.Method.ReturnType.IsValueType)
{
writer.Write(".Value");
}
writer.Write(";");
}
else
{
// Return
writer.Write("return ");
WriteInvocation(writer, alias);
}
}
writer.Write("}");
}
writer.Write("}");
}
