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//
// CodeTranslationFileDescriptionTemplate.cs: Template that translates .NET
// code using CodeDom.
//
// Authors:
// Michael Hutchinson <m.j.hutchinson@gmail.com>
//
// Copyright (C) 2006 Michael Hutchinson
//
//
// This source code is licenced under The MIT License:
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Xml;
using System.IO;
using MonoDevelop.Core;
using MonoDevelop.Ide.Templates;
using MonoDevelop.Projects;
namespace MonoDevelop.Ide.Templates
{
public class CodeTranslationFileDescriptionTemplate : SingleFileDescriptionTemplate
{
string content;
CodeDomProvider parserProvider;
string tempSubstitutedContent;
bool showAutogenerationNotice = false;
string sourceLang;
public override void Load (XmlElement filenode, FilePath baseDirectory)
{
base.Load (filenode, baseDirectory);
content = filenode.InnerText;
sourceLang = filenode.GetAttribute ("SourceLanguage");
if ((sourceLang == null) || (sourceLang.Length == 0))
sourceLang = "C#";
string showAutogen = filenode.GetAttribute ("ShowAutogenerationNotice");
if ((showAutogen != null) && (showAutogen.Length > 0)) {
try {
showAutogenerationNotice = bool.Parse (showAutogen.ToLower());
} catch (FormatException) {
throw new InvalidOperationException ("Invalid value for ShowAutogenerationNotice in template.");
}
}
//this is a code template, so unless told otherwise, default to adding the standard header
if (string.IsNullOrEmpty (filenode.GetAttribute ("AddStandardHeader")))
AddStandardHeader = true;
parserProvider = GetCodeDomProvider (sourceLang);
}
//Adapted from CodeDomFileDescriptionTemplate.cs
//TODO: Remove need to have a namespace and type (i.e. translate fragments)
public override string CreateContent (Project project, Dictionary<string,string> tags, string language)
{
//get target language's ICodeGenerator
if (language == null || language == "")
throw new InvalidOperationException ("Language not defined in CodeDom based template.");
CodeDomProvider provider = GetCodeDomProvider (language);
//parse the source code
if (tempSubstitutedContent == null)
throw new Exception ("Expected ModifyTags to be called before CreateContent");
CodeCompileUnit ccu;
using (StringReader sr = new StringReader (tempSubstitutedContent)) {
try {
ccu = parserProvider.Parse (sr);
} catch (NotImplementedException) {
throw new InvalidOperationException ("Invalid Code Translation template: the CodeDomProvider of the source language '"
+ language + "' has not implemented the Parse method.");
} catch (Exception ex) {
LoggingService.LogError ("Unparseable template: '" + tempSubstitutedContent + "'.", ex);
throw;
}
}
foreach (CodeNamespace cns in ccu.Namespaces)
cns.Name = CodeDomFileDescriptionTemplate.StripImplicitNamespace (project, tags, cns.Name);
tempSubstitutedContent = null;
//and generate the code
CodeGeneratorOptions options = new CodeGeneratorOptions();
options.IndentString = "\t";
options.BracingStyle = "C";
string txt = string.Empty;
using (StringWriter sw = new StringWriter ()) {
provider.GenerateCodeFromCompileUnit (ccu, sw, options);
txt = sw.ToString ();
}
if (showAutogenerationNotice) return txt;
//remove auto-generation notice
int i = txt.IndexOf ("</autogenerated>");
if (i == -1) return txt;
i = txt.IndexOf ('\n', i);
if (i == -1) return txt;
i = txt.IndexOf ('\n', i + 1);
if (i == -1) return txt;
return txt.Substring (i+1);
}
public override void ModifyTags (SolutionFolderItem policyParent, Project project, string language, string identifier, string fileName, ref Dictionary<string,string> tags)
{
//prevent parser breakage from missing tags, which SingleFile only provides for DotNetProject
//if ((project as DotNetProject) == null)
// throw new InvalidOperationException ("CodeTranslationFileDescriptionTemplate can only be used with a DotNetProject");
base.ModifyTags (policyParent, project, language, identifier, fileName, ref tags);
//swap out the escaped keyword identifiers for the target language with the source language
//CodeDOM should take care of handling it for the target language
System.CodeDom.Compiler.CodeDomProvider provider = GetCodeDomProvider (sourceLang);
tags ["EscapedIdentifier"] = provider.CreateEscapedIdentifier ((string) tags ["Name"]);
//This is a bit hacky doing it here instead of in CreateContent, but need to
//substitute all tags in code before language is translated, because language
//translation gets confused by unsubstituted substitution tokens.
tempSubstitutedContent = StringParserService.Parse (content, tags);
}
private System.CodeDom.Compiler.CodeDomProvider GetCodeDomProvider (string language)
{
System.CodeDom.Compiler.CodeDomProvider provider = null;
IDotNetLanguageBinding binding = GetLanguageBinding (language) as IDotNetLanguageBinding;
if (binding == null)
throw new InvalidOperationException ("No LanguageBinding was found for the language '" + language + "'.");
provider = binding.GetCodeDomProvider ();
if (provider == null)
throw new InvalidOperationException ("No CodeDomProvider was found for the language '" + language + "'.");
return provider;
}
//CodeDOM escapes keywords for us, so escaped keywords are valid too. Need to override to allow this,
//and also to check for validity in source language
public override bool IsValidName (string name, string language)
{
return base.IsValidName (name, language) && base.IsValidName (name, sourceLang);
}
}
}
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