/// <summary>
/// Initializes a new instance of the CodeLexer class.
/// </summary>
/// <param name="languageService">The C# language service.</param>
/// <param name="source">The source to read.</param>
/// <param name="codeReader">Used for reading the source code.</param>
internal CodeLexer(CsLanguageService languageService, Code source, CodeReader codeReader)
{
Param.AssertNotNull(languageService, "languageService");
Param.AssertNotNull(source, "source");
Param.AssertNotNull(codeReader, "codeReader");
this.languageService = languageService;
this.source = source;
this.codeReader = codeReader;
}
/// <summary>
/// Initializes a new instance of the CodeParser class.
/// </summary>
/// <param name="languageService">The C# language service.</param>
/// <param name="lexer">The lexer to use for parsing the code.</param>
/// <param name="preprocessorDefinitions">The optional preprocessor flags.</param>
public CodeParser(CsLanguageService languageService, CodeLexer lexer, Dictionary<string, object> preprocessorDefinitions)
{
Param.AssertNotNull(languageService, "languageService");
Param.AssertNotNull(lexer, "lexer");
Param.Ignore(preprocessorDefinitions);
this.languageService = languageService;
this.lexer = lexer;
this.preprocessorDefinitions = preprocessorDefinitions;
}
////[TestMethod]
public void TestNamespace()
{
string sourceCode =
@"namespace Namespace1
{
public class Class1
{
}
}";
CsLanguageService languageService = new CsLanguageService();
CsDocument document1 = languageService.CreateCodeModel(sourceCode, "source1.cs", "test");
CsDocument document2 = languageService.CreateCodeModel(sourceCode, "source2.cs", "test");
Comparer comparer = new Comparer();
comparer.AreEqual(document1, document2);
}
/// <summary>
/// Parses the given file.
/// </summary>
/// <param name="sourceCode">The source code to parse.</param>
/// <param name="passNumber">The current pass number.</param>
/// <param name="document">The parsed representation of the file.</param>
/// <returns>Returns false if no further analysis should be done on this file, or
/// true if the file should be parsed again during the next pass.</returns>
public override bool ParseFile(SourceCode sourceCode, int passNumber, ref ICodeDocument document)
{
Param.RequireNotNull(sourceCode, "sourceCode");
Param.RequireGreaterThanOrEqualToZero(passNumber, "passNumber");
Param.Ignore(document);
// The document is parsed on the first pass. On any subsequent passes, we do not do anything.
if (passNumber == 0)
{
try
{
using (TextReader reader = sourceCode.Read())
{
// Create the document.
if (reader == null)
{
this.AddViolation(sourceCode, 1, Rules.FileMustBeReadable);
}
else
{
CsLanguageService languageService = new CsLanguageService();
document = new CsDocumentWrapper(
this,
sourceCode,
languageService.CreateCodeModel(reader, sourceCode.Name, sourceCode.Path));
}
}
}
catch (SyntaxException syntaxex)
{
this.AddViolation(sourceCode, syntaxex.LineNumber, Rules.SyntaxException, syntaxex.Message);
document = null;
}
}
return false;
}
private void ReadAndWriteFile(string filePath)
{
Console.WriteLine("Checking file " + filePath);
if (File.Exists(filePath))
{
string fileContents = null;
try
{
fileContents = File.ReadAllText(filePath);
}
catch (IOException)
{
}
CsLanguageService languageService = new CsLanguageService(preprocessorDefinitions);
CsDocument doc = null;
try
{
doc = languageService.CreateCodeModel(fileContents, Path.GetFileName(filePath), filePath);
}
catch (SyntaxException)
{
}
catch (Exception ex)
{
Assert.Fail("Exception from CodeModel: " + ex.GetType() + ", " + ex.Message + ". FilePath=" + filePath);
}
if (doc != null)
{
using (StringWriter writer = new StringWriter())
{
doc.Write(writer);
this.CompareDocs(fileContents, writer.ToString(), filePath);
}
}
}
}
/// <summary>
/// Initializes a new instance of the CodeLexer class.
/// </summary>
/// <param name="languageService">The C# language service.</param>
/// <param name="source">The source to read.</param>
/// <param name="codeReader">Used for reading the source code.</param>
/// <param name="index">The starting absolute index of the code being parsed.</param>
/// <param name="indexOnLine">The starting index on line of the code being parsed.</param>
/// <param name="lineNumber">The starting line number of the code being parsed.</param>
internal CodeLexer(CsLanguageService languageService, Code source, CodeReader codeReader, int index, int indexOnLine, int lineNumber)
{
Param.AssertNotNull(languageService, "languageService");
Param.AssertNotNull(source, "source");
Param.AssertNotNull(codeReader, "codeReader");
Param.AssertGreaterThanOrEqualToZero(index, "index");
Param.AssertGreaterThanOrEqualToZero(indexOnLine, "indexOnLine");
Param.AssertGreaterThanZero(lineNumber, "lineNumber");
this.languageService = languageService;
this.source = source;
this.codeReader = codeReader;
this.marker.Index = index;
this.marker.IndexOnLine = indexOnLine;
this.marker.LineNumber = lineNumber;
}
/// <summary>
/// Initializes a new instance of the CodeParser class.
/// </summary>
/// <param name="languageService">The C# language service.</param>
/// <param name="document">The document being parsed.</param>
/// <param name="symbols">The symbols in the document to parse.</param>
/// <param name="preprocessorDefinitions">The optional preprocessor flags.</param>
public CodeParser(CsLanguageService languageService, CsDocument document, SymbolManager symbols, IDictionary<string, object> preprocessorDefinitions)
{
Param.AssertNotNull(languageService, "languageService");
Param.AssertNotNull(document, "document");
Param.AssertNotNull(symbols, "symbols");
Param.Ignore(preprocessorDefinitions);
this.languageService = languageService;
this.document = document;
this.symbols = symbols;
this.preprocessorDefinitions = preprocessorDefinitions;
}
/// <summary>
/// Extracts the body of the given preprocessor directive symbol, parses it, and returns the parsed expression.
/// </summary>
/// <param name="document">The parent document.</param>
/// <param name="code">The source code.</param>
/// <param name="parentProxy">Represents the parent item.</param>
/// <param name="languageService">The C# language service.</param>
/// <param name="preprocessorDefinitions">Optional preprocessor definitions.</param>
/// <param name="preprocessorSymbol">The preprocessor directive symbol.</param>
/// <param name="startIndex">The index of the start of the expression body within the text string.</param>
/// <returns>Returns the expression.</returns>
internal static Expression GetConditionalPreprocessorBodyExpression(
CsDocument document,
Code code,
CodeUnitProxy parentProxy,
CsLanguageService languageService,
IDictionary<string, object> preprocessorDefinitions,
Symbol preprocessorSymbol,
int startIndex)
{
Param.AssertNotNull(document, "document");
Param.AssertNotNull(code, "code");
Param.AssertNotNull(parentProxy, "parentProxy");
Param.AssertNotNull(languageService, "languageService");
Param.Ignore(preprocessorDefinitions);
Param.AssertNotNull(preprocessorSymbol, "preprocessorSymbol");
Param.AssertGreaterThanOrEqualToZero(startIndex, "startIndex");
CsLanguageService.Debug.Assert(preprocessorSymbol.SymbolType == SymbolType.PreprocessorDirective, "The symbol is not a preprocessor directive.");
string text = preprocessorSymbol.Text.Substring(startIndex, preprocessorSymbol.Text.Length - startIndex).TrimEnd(null);
if (text.Length > 0)
{
// Trim off the whitespace at the beginning and advance the start index.
int trimIndex = 0;
for (int i = 0; i < text.Length; ++i)
{
if (char.IsWhiteSpace(text[i]))
{
++trimIndex;
}
else
{
break;
}
}
if (trimIndex > 0)
{
text = text.Substring(trimIndex, text.Length - trimIndex);
startIndex += trimIndex;
}
if (text.Length > 0)
{
// Extract the symbols within this text.
Code preprocessorCode = new Code(text, "Preprocessor", "Preprocessor");
var lexer = new CodeLexer(
languageService,
preprocessorCode,
new CodeReader(preprocessorCode),
preprocessorSymbol.Location.StartPoint.Index + startIndex,
preprocessorSymbol.Location.StartPoint.IndexOnLine + startIndex,
preprocessorSymbol.Location.StartPoint.LineNumber);
List<Symbol> symbolList = lexer.GetSymbols(document, null);
var directiveSymbols = new SymbolManager(symbolList);
var preprocessorBodyParser = new CodeParser(languageService, document, directiveSymbols, preprocessorDefinitions);
// Parse these symbols to create the body expression.
return preprocessorBodyParser.GetNextConditionalPreprocessorExpression(document, parentProxy);
}
}
// The directive has no body.
return null;
}
/// <summary>
/// Extracts the body of the given preprocessor directive symbol, parses it, and returns the parsed expression.
/// </summary>
/// <param name="document">The parent document.</param>
/// <param name="code">The source code.</param>
/// <param name="parentProxy">Represents the parent item.</param>
/// <param name="languageService">The C# language service.</param>
/// <param name="preprocessorDefinitions">Optional preprocessor definitions.</param>
/// <param name="preprocessorSymbol">The preprocessor directive symbol.</param>
/// <param name="startIndex">The index of the start of the expression body within the text string.</param>
/// <returns>Returns the expression.</returns>
internal static Expression GetConditionalPreprocessorBodyExpression(
CsDocument document,
Code code,
CodeUnitProxy parentProxy,
CsLanguageService languageService,
IDictionary <string, object> preprocessorDefinitions,
Symbol preprocessorSymbol,
int startIndex)
{
Param.AssertNotNull(document, "document");
Param.AssertNotNull(code, "code");
Param.AssertNotNull(parentProxy, "parentProxy");
Param.AssertNotNull(languageService, "languageService");
Param.Ignore(preprocessorDefinitions);
Param.AssertNotNull(preprocessorSymbol, "preprocessorSymbol");
Param.AssertGreaterThanOrEqualToZero(startIndex, "startIndex");
CsLanguageService.Debug.Assert(preprocessorSymbol.SymbolType == SymbolType.PreprocessorDirective, "The symbol is not a preprocessor directive.");
string text = preprocessorSymbol.Text.Substring(startIndex, preprocessorSymbol.Text.Length - startIndex).TrimEnd(null);
if (text.Length > 0)
{
// Trim off the whitespace at the beginning and advance the start index.
int trimIndex = 0;
for (int i = 0; i < text.Length; ++i)
{
if (char.IsWhiteSpace(text[i]))
{
++trimIndex;
}
else
{
break;
}
}
if (trimIndex > 0)
{
text = text.Substring(trimIndex, text.Length - trimIndex);
startIndex += trimIndex;
}
if (text.Length > 0)
{
// Extract the symbols within this text.
Code preprocessorCode = new Code(text, "Preprocessor", "Preprocessor");
var lexer = new CodeLexer(
languageService,
preprocessorCode,
new CodeReader(preprocessorCode),
preprocessorSymbol.Location.StartPoint.Index + startIndex,
preprocessorSymbol.Location.StartPoint.IndexOnLine + startIndex,
preprocessorSymbol.Location.StartPoint.LineNumber);
List <Symbol> symbolList = lexer.GetSymbols(document, null);
var directiveSymbols = new SymbolManager(symbolList);
var preprocessorBodyParser = new CodeParser(languageService, document, directiveSymbols, preprocessorDefinitions);
// Parse these symbols to create the body expression.
return(preprocessorBodyParser.GetNextConditionalPreprocessorExpression(document, parentProxy));
}
}
// The directive has no body.
return(null);
}
