/// <summary>
/// Same as <see cref="ParseTranslationUnit"/> but requires a full command line for
/// <paramref name="commandLineArgs"/> including args[0]. This is useful if the standard
/// library paths are relative to the binary.
/// </summary>
/// <param name="sourceFileName">
/// The name of the source file to load, or null if the source file is included in
/// <paramref name="commandLineArgs"/>.
/// </param>
/// <param name="commandLineArgs">
/// The command-line arguments that would be passed to the clang executable if it were
/// being invoked out-of-process. These command-line options will be parsed and will affect
/// how the translation unit is parsed. Note that the following options are ignored: '-c',
/// '-emit-ast', '-fsyntax-only' (which is the default), and '-o <output file>'.
/// </param>
/// <param name="unsavedFiles">
/// The files that have not yet been saved to disk but may be required for parsing,
/// including the contents of those files.
/// </param>
/// <param name="options">
/// A bitmask of options that affects how the translation unit is managed but not its
/// compilation. This should be a bitwise OR of the
/// <see cref="TranslationUnitCreationOptions"/> flags.
/// </param>
/// <returns>
/// The created <see cref="TranslationUnit"/>, describing the parsed code and containing
/// any diagnostics produced by the compiler.
/// </returns>
/// <exception cref="ErrorCodeException">
/// The error code returned by libclang is not <see cref="ErrorCode.Success"/>.
/// </exception>
public TranslationUnit ParseTranslationUnitFullArgv(
string sourceFileName,
IEnumerable <string> commandLineArgs,
IEnumerable <UnsavedFile> unsavedFiles = null,
TranslationUnitCreationOptions options = TranslationUnitCreationOptions.None)
{
ThrowIfDisposed();
using (var cString = new CString(sourceFileName))
using (var args = new CStrings(commandLineArgs))
using (var files = new CXUnsavedFiles(unsavedFiles))
{
var argsPtr = stackalloc sbyte *[args.Count];
args.Apply((arg, i) => argsPtr[i] = arg.Ptr);
var filesPtr = stackalloc CXUnsavedFile[files.Count];
files.Apply((file, i) => filesPtr[i] = files[i]);
CXTranslationUnitImpl *ptr;
NativeMethods.clang_parseTranslationUnit2FullArgv(
Ptr,
cString.Ptr,
argsPtr,
args.Count,
filesPtr,
(uint)files.Count,
(uint)options,
&ptr).Check();
return(new TranslationUnit(ptr, this));
}
}
/// <summary>
/// Reparse the source files that produced this translation unit.
/// </summary>
/// <param name="unsavedFiles">
/// The files that have not yet been saved to disk but may be required for parsing,
/// including the contents of those files.
/// </param>
/// <returns>
/// <para>
/// errodCode:
/// <see cref="ErrorCode.Success"/> if the sources could be reparsed. Another error code
/// will be returned if reparsing was impossible, such that the translation unit is
/// invalid. In such cases, the only valid call for translationUnit is
/// <see cref="Dispose"/>.
/// </para>
/// <para>translationUnit: The translation unit whose contents were re-parsed.</para>
/// </returns>
/// <remarks>
/// <para>
/// This routine can be used to re-parse the source files that originally created the
/// given translation unit, for example because those source files have changed (either on
/// disk or as passed via <paramref name="unsavedFiles"/>). The source code will be
/// reparsed with the same command-line options as it was originally parsed.
/// </para>
/// <para>
/// Reparsing a translation unit invalidates all cursors and source locations that refer
/// into that translation unit. This makes reparsing a translation unit semantically
/// equivalent to destroying the translation unit and then creating a new translation unit
/// with the same command-line arguments. However, it may be more efficient to reparse a
/// translation unit using this routine.
/// </para>
/// </remarks>
public (ErrorCode errorCode, TranslationUnit translationUnit) TryReparse(
IEnumerable <UnsavedFile> unsavedFiles)
{
ThrowIfDisposed();
var files = new CXUnsavedFiles(unsavedFiles);
var filesPtr = stackalloc CXUnsavedFile[files.Count];
files.Apply((file, i) => filesPtr[i] = files[i]);
var errorCode = (ErrorCode)NativeMethods.clang_reparseTranslationUnit(
Ptr,
(uint)files.Count,
filesPtr,
NativeMethods.clang_defaultReparseOptions(Ptr));
TranslationUnit translationUnit = null;
if (errorCode != ErrorCode.Success)
{
Dispose();
}
else
{
translationUnit = new TranslationUnit(Ptr, Index);
disposed = true;
}
return(errorCode : errorCode, translationUnit : translationUnit);
}
