/// <summary>
/// Find #import/#include directives in a specific file.
/// </summary>
/// <param name="translationUnit">Translation unit containing the file to query.</param>
/// <param name="file">file to search for #import/#include directives.</param>
/// <returns>
/// true if the function was terminated by a callback
/// (e.g., <see cref="Visit(Cursor, SourceRange)"/> returned false).
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="translationUnit"/> or <paramref name="file"/> is null.
/// </exception>
public bool FindIncludesInFile(TranslationUnit translationUnit, SourceFile file)
{
Requires.NotNull(translationUnit, nameof(translationUnit));
Requires.NotNull(file, nameof(file));
translationUnit.ThrowIfDisposed();
visit visitor = (context, arg2, arg3) =>
{
if (Visit(
Cursor.Create(arg2, translationUnit),
SourceRange.Create(arg3, translationUnit)))
{
return(CXVisitorResult.CXVisit_Continue);
}
else
{
return(CXVisitorResult.CXVisit_Break);
}
};
var result = NativeMethods.clang_findIncludesInFile(
translationUnit.Ptr,
file.Ptr,
new CXCursorAndRangeVisitor
{
visit = Marshal.GetFunctionPointerForDelegate(visitor)
});
GC.KeepAlive(visitor);
switch (result)
{
case CXResult.CXResult_Success:
return(false);
case CXResult.CXResult_Invalid:
throw new InvalidOperationException(result.ToString());
case CXResult.CXResult_VisitBreak:
return(true);
default:
goto case CXResult.CXResult_Invalid;
}
}
/// <summary>
/// Gets all ranges from all files that were skipped by the preprocessor.
/// </summary>
/// <remarks>
/// The preprocessor will skip lines when they are surrounded by an if/ifdef/ifndef
/// directive whose condition does not evaluate to true.
/// </remarks>
/// <returns>All ranges from all files that were skipped by the preprocessor.</returns>
public SourceRange[] GetAllSkippedRanges()
{
ThrowIfDisposed();
var ptr = NativeMethods.clang_getAllSkippedRanges(Ptr);
if (ptr == null)
{
return(Array.Empty <SourceRange>());
}
else
{
try
{
var ranges = new SourceRange[ptr->count];
ranges.SetValues(i => SourceRange.Create(ptr->ranges[i], this));
return(ranges);
}
finally
{
NativeMethods.clang_disposeSourceRangeList(ptr);
}
}
}
/// <summary> /// Visitor callback that will receive pairs of Cursor/SourceRange for each /// reference/directive found. /// </summary> /// <param name="cursor">The Cursor for a reference/directive.</param> /// <param name="range">The SourceRange for each reference/directive.</param> /// <returns>true to continue the cursor traversal.</returns> protected abstract bool Visit(Cursor cursor, SourceRange range);
