void ConstructCompilationUnit()
{
CompilationUnitSnippet cu = new CompilationUnitSnippet();
this.compilationUnit = cu;
this.compilation.CompilationUnits.Add(cu);
cu.Compilation = this.compilation;
cu.Name = new Identifier(this.inputLine.Substring(5));
string snippetText = this.ReadString();
cu.SourceContext.Document = this.currentDocument = this.compiler.CreateDocument(cu.Name.ToString(), 1, snippetText);
cu.SourceContext.EndPos = snippetText.Length;
cu.ParserFactory = new Microsoft.SpecSharp.ParserFactory();
}
public virtual CompilationUnitSnippet VisitCompilationUnitSnippet(CompilationUnitSnippet snippet, CompilationUnitSnippet changes, CompilationUnitSnippet deletions, CompilationUnitSnippet insertions){
CompilationUnit cu = this.VisitCompilationUnit(snippet, changes, deletions, insertions);
Debug.Assert(cu is CompilationUnitSnippet);
return cu as CompilationUnitSnippet;
}
public virtual Differences VisitCompilationUnitSnippet(CompilationUnitSnippet snippet1, CompilationUnitSnippet snippet2){
Differences differences = new Differences(snippet1, snippet2);
if (snippet1 == null || snippet2 == null){
if (snippet1 != snippet2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
CompilationUnitSnippet changes = (CompilationUnitSnippet)snippet2.Clone();
CompilationUnitSnippet deletions = (CompilationUnitSnippet)snippet2.Clone();
CompilationUnitSnippet insertions = (CompilationUnitSnippet)snippet2.Clone();
if (snippet1.SourceContext.Document == null || snippet2.SourceContext.Document == null){
if (snippet1.SourceContext.Document == snippet2.SourceContext.Document) differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
}else if (snippet1.SourceContext.Document.Name == snippet2.SourceContext.Document.Name)
differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
if (differences.NumberOfDifferences == 0){
differences.Changes = null;
differences.Deletions = null;
differences.Insertions = null;
}else{
differences.Changes = changes;
differences.Deletions = deletions;
differences.Insertions = insertions;
}
return differences;
}
public virtual CompilationUnit VisitCompilationUnitSnippet(CompilationUnitSnippet snippet){
return this.VisitCompilationUnit(snippet);
}
public override CompilationUnit VisitCompilationUnitSnippet(CompilationUnitSnippet snippet){
if (snippet == null) return null;
Document doc = snippet.SourceContext.Document;
if (doc == null) return null;
string fileName = doc.Name;
int lineNumber = doc.LineNumber;
DocumentText sourceText = doc.Text;
IParserFactory pf = snippet.ParserFactory;
IParser p;
if (pf == null)
p = this.DefaultParserFactory.CreateParser(fileName, lineNumber, sourceText, this.SymbolTable, this.ErrorNodes, this.Options);
else
p = pf.CreateParser(fileName, lineNumber, sourceText, this.SymbolTable, this.ErrorNodes, this.Options);
if (p == null) return null;
p.ParseCompilationUnit(snippet);
return snippet;
}
public virtual void VisitCompilationUnitSnippet(CompilationUnitSnippet snippet)
{
this.VisitCompilationUnit(snippet);
}
public override CompilationUnit VisitCompilationUnitSnippet(CompilationUnitSnippet snippet)
{
if (snippet == null) return null;
return base.VisitCompilationUnitSnippet((CompilationUnitSnippet)snippet.Clone());
}
public virtual CompilationUnitSnippet VisitCompilationUnitSnippet(CompilationUnitSnippet snippet1, CompilationUnitSnippet snippet2)
{
return snippet1;
}
public virtual Compilation IncrementalSymbolTableUpdate(Compilation compilation, CompilationUnitSnippet compilationUnit, Document changedDocument,
Method method, SourceContext spanningContextForChanges, int changeInLength){
if (compilation == null || compilationUnit == null || changedDocument == null || method == null || method.Body == null){Debug.Assert(false); return null;}
//Record the fact that method has changed, so that subsequent edits do not have to search for it
//in an AST that now has source contexts with out of date positions (the line numbers are up to date, but not the positions).
compilationUnit.ChangedMethod = method;
compilationUnit.OriginalEndPosOfChangedMethod = method.SourceContext.EndPos;
if (method.SourceContext.Document != null){
//Contruct a new context for the method that refers to the new document
SourceContext newCtx = this.GetMethodBodyContextInNewDocument(changedDocument, method.Body.SourceContext, spanningContextForChanges, changeInLength);
//Now update the original document so that all nodes that follow method in the source will report their source lines relative to the changedDocument
int oldNumLines = method.Body.SourceContext.EndLine - method.Body.SourceContext.StartLine;
int newNumLines = newCtx.EndLine - newCtx.StartLine;
method.SourceContext.Document.InsertOrDeleteLines(method.SourceContext.EndPos, newNumLines-oldNumLines);
//Replace the method body context with the new context
method.Body.SourceContext = newCtx;
}
//Get rid of the body statements (if present) that was constructed from the old context
method.Body.Statements = null;
return compilation;
}
public virtual CompilationUnitSnippet CreateCompilationUnitSnippet(string fileName, int lineNumber, DocumentText text, Compilation compilation){
Document doc = this.CreateDocument(Path.GetFullPath(fileName), 1, text);
CompilationUnitSnippet cu = new CompilationUnitSnippet();
cu.Name = Identifier.For(doc.Name);
cu.SourceContext = new SourceContext(doc);
cu.Compilation = compilation;
return cu;
}
public override CompilationUnitSnippet VisitCompilationUnitSnippet(CompilationUnitSnippet snippet)
{
System.Compiler.Parser p = this.DefaultCompiler.CreateParser(snippet.SourceContext.Document, this.ErrorNodes);
p.ParseCompilationUnit(snippet);
return(null);
}
