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//===--- CodeCompletionHandler.h - Preprocessor code completion -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the CodeCompletionHandler interface, which provides
// code-completion callbacks for the preprocessor.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LEX_CODECOMPLETIONHANDLER_H
#define LLVM_CLANG_LEX_CODECOMPLETIONHANDLER_H
namespace clang {
class IdentifierInfo;
class MacroInfo;
/// \brief Callback handler that receives notifications when performing code
/// completion within the preprocessor.
class CodeCompletionHandler {
public:
virtual ~CodeCompletionHandler();
/// \brief Callback invoked when performing code completion for a preprocessor
/// directive.
///
/// This callback will be invoked when the preprocessor processes a '#' at the
/// start of a line, followed by the code-completion token.
///
/// \param InConditional Whether we're inside a preprocessor conditional
/// already.
virtual void CodeCompleteDirective(bool InConditional) { }
/// \brief Callback invoked when performing code completion within a block of
/// code that was excluded due to preprocessor conditionals.
virtual void CodeCompleteInConditionalExclusion() { }
/// \brief Callback invoked when performing code completion in a context
/// where the name of a macro is expected.
///
/// \param IsDefinition Whether this is the definition of a macro, e.g.,
/// in a #define.
virtual void CodeCompleteMacroName(bool IsDefinition) { }
/// \brief Callback invoked when performing code completion in a preprocessor
/// expression, such as the condition of an #if or #elif directive.
virtual void CodeCompletePreprocessorExpression() { }
/// \brief Callback invoked when performing code completion inside a
/// function-like macro argument.
///
/// There will be another callback invocation after the macro arguments are
/// parsed, so this callback should generally be used to note that the next
/// callback is invoked inside a macro argument.
virtual void CodeCompleteMacroArgument(IdentifierInfo *Macro,
MacroInfo *MacroInfo,
unsigned ArgumentIndex) { }
/// \brief Callback invoked when performing code completion in a part of the
/// file where we expect natural language, e.g., a comment, string, or
/// #error directive.
virtual void CodeCompleteNaturalLanguage() { }
};
}
#endif // LLVM_CLANG_LEX_CODECOMPLETIONHANDLER_H
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