/// <summary>
/// Gets and converts preprocessor directive.
/// </summary>
/// <param name="preprocessorSymbol">
/// The preprocessor symbol.
/// </param>
/// <param name="parent">
/// The parent code part.
/// </param>
/// <param name="generated">
/// Indicates whether the preprocessor directive lies within a block of generated code.
/// </param>
/// <returns>
/// Returns the preprocessor directive.
/// </returns>
private Preprocessor GetPreprocessorDirectiveToken(Symbol preprocessorSymbol, Reference<ICodePart> parent, bool generated)
{
Param.AssertNotNull(preprocessorSymbol, "preprocessorSymbol");
Param.AssertNotNull(parent, "parent");
Param.Ignore(generated);
Debug.Assert(preprocessorSymbol != null && preprocessorSymbol.SymbolType == SymbolType.PreprocessorDirective, "Expected a preprocessor directive");
// Get the type of the preprocessor directive.
int bodyIndex;
string type = CsParser.GetPreprocessorDirectiveType(preprocessorSymbol, out bodyIndex);
if (type == null)
{
throw new SyntaxException(this.document.SourceCode, preprocessorSymbol.LineNumber);
}
// Create the correct preprocessor object type.
Preprocessor preprocessor = null;
if (type == "region")
{
Region region = new Region(preprocessorSymbol.Text, preprocessorSymbol.Location, parent, true, generated);
this.symbols.PushRegion(region);
preprocessor = region;
}
else if (type == "endregion")
{
Region endregion = new Region(preprocessorSymbol.Text, preprocessorSymbol.Location, parent, false, generated);
Region startregion = this.symbols.PopRegion();
if (startregion == null)
{
throw new SyntaxException(this.document.SourceCode, preprocessorSymbol.LineNumber);
}
startregion.Partner = endregion;
endregion.Partner = startregion;
preprocessor = endregion;
}
else if (type == "if")
{
preprocessor = this.GetConditionalCompilationDirective(preprocessorSymbol, ConditionalCompilationDirectiveType.If, bodyIndex, parent, generated);
}
else if (type == "elif")
{
preprocessor = this.GetConditionalCompilationDirective(preprocessorSymbol, ConditionalCompilationDirectiveType.Elif, bodyIndex, parent, generated);
}
else if (type == "else")
{
preprocessor = this.GetConditionalCompilationDirective(preprocessorSymbol, ConditionalCompilationDirectiveType.Else, bodyIndex, parent, generated);
}
else if (type == "endif")
{
preprocessor = this.GetConditionalCompilationDirective(preprocessorSymbol, ConditionalCompilationDirectiveType.Endif, bodyIndex, parent, generated);
}
else
{
preprocessor = new Preprocessor(preprocessorSymbol.Text, preprocessorSymbol.Location, parent, generated);
}
return preprocessor;
}
/// <summary>
/// Pushes a region onto the region stack.
/// </summary>
/// <param name="region">
/// The region to add.
/// </param>
public void PushRegion(Region region)
{
Param.AssertNotNull(region, "region");
this.regions.Push(region);
if (region.IsGeneratedCodeRegion)
{
this.IncrementGeneratedCodeBlocks();
}
}