clang
8.0.0
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This interface provides a way to observe the actions of the preprocessor as it does its thing. More...
#include "clang/Lex/PPCallbacks.h"
Public Types | |
enum | FileChangeReason { EnterFile, ExitFile, SystemHeaderPragma, RenameFile } |
enum | PragmaMessageKind { PMK_Message, PMK_Warning, PMK_Error } |
Determines the kind of #pragma invoking a call to PragmaMessage. More... | |
enum | ConditionValueKind { CVK_NotEvaluated, CVK_False, CVK_True } |
Public Member Functions | |
virtual | ~PPCallbacks () |
virtual void | FileChanged (SourceLocation Loc, FileChangeReason Reason, SrcMgr::CharacteristicKind FileType, FileID PrevFID=FileID()) |
Callback invoked whenever a source file is entered or exited. More... | |
virtual void | FileSkipped (const FileEntry &SkippedFile, const Token &FilenameTok, SrcMgr::CharacteristicKind FileType) |
Callback invoked whenever a source file is skipped as the result of header guard optimization. More... | |
virtual bool | FileNotFound (StringRef FileName, SmallVectorImpl< char > &RecoveryPath) |
Callback invoked whenever an inclusion directive results in a file-not-found error. More... | |
virtual void | InclusionDirective (SourceLocation HashLoc, const Token &IncludeTok, StringRef FileName, bool IsAngled, CharSourceRange FilenameRange, const FileEntry *File, StringRef SearchPath, StringRef RelativePath, const Module *Imported, SrcMgr::CharacteristicKind FileType) |
Callback invoked whenever an inclusion directive of any kind (#include , #import , etc.) has been processed, regardless of whether the inclusion will actually result in an inclusion. More... | |
virtual void | moduleImport (SourceLocation ImportLoc, ModuleIdPath Path, const Module *Imported) |
Callback invoked whenever there was an explicit module-import syntax. More... | |
virtual void | EndOfMainFile () |
Callback invoked when the end of the main file is reached. More... | |
virtual void | Ident (SourceLocation Loc, StringRef str) |
Callback invoked when a #ident or #sccs directive is read. More... | |
virtual void | PragmaDirective (SourceLocation Loc, PragmaIntroducerKind Introducer) |
Callback invoked when start reading any pragma directive. More... | |
virtual void | PragmaComment (SourceLocation Loc, const IdentifierInfo *Kind, StringRef Str) |
Callback invoked when a #pragma comment directive is read. More... | |
virtual void | PragmaDetectMismatch (SourceLocation Loc, StringRef Name, StringRef Value) |
Callback invoked when a #pragma detect_mismatch directive is read. More... | |
virtual void | PragmaDebug (SourceLocation Loc, StringRef DebugType) |
Callback invoked when a #pragma clang __debug directive is read. More... | |
virtual void | PragmaMessage (SourceLocation Loc, StringRef Namespace, PragmaMessageKind Kind, StringRef Str) |
Callback invoked when a #pragma message directive is read. More... | |
virtual void | PragmaDiagnosticPush (SourceLocation Loc, StringRef Namespace) |
Callback invoked when a #pragma gcc diagnostic push directive is read. More... | |
virtual void | PragmaDiagnosticPop (SourceLocation Loc, StringRef Namespace) |
Callback invoked when a #pragma gcc diagnostic pop directive is read. More... | |
virtual void | PragmaDiagnostic (SourceLocation Loc, StringRef Namespace, diag::Severity mapping, StringRef Str) |
Callback invoked when a #pragma gcc diagnostic directive is read. More... | |
virtual void | PragmaOpenCLExtension (SourceLocation NameLoc, const IdentifierInfo *Name, SourceLocation StateLoc, unsigned State) |
Called when an OpenCL extension is either disabled or enabled with a pragma. More... | |
virtual void | PragmaWarning (SourceLocation Loc, StringRef WarningSpec, ArrayRef< int > Ids) |
Callback invoked when a #pragma warning directive is read. More... | |
virtual void | PragmaWarningPush (SourceLocation Loc, int Level) |
Callback invoked when a #pragma warning(push) directive is read. More... | |
virtual void | PragmaWarningPop (SourceLocation Loc) |
Callback invoked when a #pragma warning(pop) directive is read. More... | |
virtual void | PragmaAssumeNonNullBegin (SourceLocation Loc) |
Callback invoked when a #pragma clang assume_nonnull begin directive is read. More... | |
virtual void | PragmaAssumeNonNullEnd (SourceLocation Loc) |
Callback invoked when a #pragma clang assume_nonnull end directive is read. More... | |
virtual void | MacroExpands (const Token &MacroNameTok, const MacroDefinition &MD, SourceRange Range, const MacroArgs *Args) |
Called by Preprocessor::HandleMacroExpandedIdentifier when a macro invocation is found. More... | |
virtual void | MacroDefined (const Token &MacroNameTok, const MacroDirective *MD) |
Hook called whenever a macro definition is seen. More... | |
virtual void | MacroUndefined (const Token &MacroNameTok, const MacroDefinition &MD, const MacroDirective *Undef) |
Hook called whenever a macro #undef is seen. More... | |
virtual void | Defined (const Token &MacroNameTok, const MacroDefinition &MD, SourceRange Range) |
Hook called whenever the 'defined' operator is seen. More... | |
virtual void | HasInclude (SourceLocation Loc, StringRef FileName, bool IsAngled, const FileEntry *File, SrcMgr::CharacteristicKind FileType) |
Hook called when a '__has_include' or '__has_include_next' directive is read. More... | |
virtual void | SourceRangeSkipped (SourceRange Range, SourceLocation EndifLoc) |
Hook called when a source range is skipped. More... | |
virtual void | If (SourceLocation Loc, SourceRange ConditionRange, ConditionValueKind ConditionValue) |
Hook called whenever an #if is seen. More... | |
virtual void | Elif (SourceLocation Loc, SourceRange ConditionRange, ConditionValueKind ConditionValue, SourceLocation IfLoc) |
Hook called whenever an #elif is seen. More... | |
virtual void | Ifdef (SourceLocation Loc, const Token &MacroNameTok, const MacroDefinition &MD) |
Hook called whenever an #ifdef is seen. More... | |
virtual void | Ifndef (SourceLocation Loc, const Token &MacroNameTok, const MacroDefinition &MD) |
Hook called whenever an #ifndef is seen. More... | |
virtual void | Else (SourceLocation Loc, SourceLocation IfLoc) |
Hook called whenever an #else is seen. More... | |
virtual void | Endif (SourceLocation Loc, SourceLocation IfLoc) |
Hook called whenever an #endif is seen. More... | |
This interface provides a way to observe the actions of the preprocessor as it does its thing.
Clients can define their hooks here to implement preprocessor level tools.
Definition at line 36 of file PPCallbacks.h.
Enumerator | |
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CVK_NotEvaluated | |
CVK_False | |
CVK_True |
Definition at line 294 of file PPCallbacks.h.
Enumerator | |
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EnterFile | |
ExitFile | |
SystemHeaderPragma | |
RenameFile |
Definition at line 40 of file PPCallbacks.h.
Determines the kind of #pragma invoking a call to PragmaMessage.
Enumerator | |
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PMK_Message | #pragma message has been invoked. |
PMK_Warning | #pragma GCC warning has been invoked. |
PMK_Error | #pragma GCC error has been invoked. |
Definition at line 187 of file PPCallbacks.h.
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virtual |
Definition at line 28 of file PPLexerChange.cpp.
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inlinevirtual |
Hook called whenever the 'defined' operator is seen.
MD | The MacroDirective if the name was a macro, null otherwise. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 275 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever an #elif is seen.
Loc | the source location of the directive. |
ConditionRange | The SourceRange of the expression being tested. |
ConditionValue | The evaluated value of the condition. |
IfLoc | the source location of the #if/#ifdef/#ifndef directive. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 314 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever an #else is seen.
Loc | the source location of the directive. |
IfLoc | the source location of the #if/#ifdef/#ifndef directive. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 337 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever an #endif is seen.
Loc | the source location of the directive. |
IfLoc | the source location of the #if/#ifdef/#ifndef directive. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 343 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked when the end of the main file is reached.
No subsequent callbacks will be made.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 154 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked whenever a source file is entered or exited.
Loc | Indicates the new location. |
PrevFID | the file that was exited if Reason is ExitFile. |
Reimplemented in clang::PPChainedCallbacks, clang::MacroPPCallbacks, and clang::sema::SemaPPCallbacks.
Definition at line 48 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked whenever an inclusion directive results in a file-not-found error.
FileName | The name of the file being included, as written in the source code. |
RecoveryPath | If this client indicates that it can recover from this missing file, the client should set this as an additional header search patch. |
RecoveryPath
as a header search path. Reimplemented in clang::PPChainedCallbacks.
Definition at line 78 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked whenever a source file is skipped as the result of header guard optimization.
SkippedFile | The file that is skipped instead of entering #include |
FilenameTok | The file name token in #include "FileName" directive or macro expanded file name token from #include MACRO(PARAMS) directive. Note that FilenameTok contains corresponding quotes/angles symbols. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 61 of file PPCallbacks.h.
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inlinevirtual |
Hook called when a '__has_include' or '__has_include_next' directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 281 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked when a #ident or #sccs directive is read.
Loc | The location of the directive. |
str | The text of the directive. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 161 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever an #if is seen.
Loc | the source location of the directive. |
ConditionRange | The SourceRange of the expression being tested. |
ConditionValue | The evaluated value of the condition. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 304 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever an #ifdef is seen.
Loc | the source location of the directive. |
MacroNameTok | Information on the token being tested. |
MD | The MacroDefinition if the name was a macro, null otherwise. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 322 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever an #ifndef is seen.
Loc | the source location of the directive. |
MacroNameTok | Information on the token being tested. |
MD | The MacroDefiniton if the name was a macro, null otherwise. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 330 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked whenever an inclusion directive of any kind (#include
, #import
, etc.) has been processed, regardless of whether the inclusion will actually result in an inclusion.
HashLoc | The location of the '#' that starts the inclusion directive. |
IncludeTok | The token that indicates the kind of inclusion directive, e.g., 'include' or 'import'. |
FileName | The name of the file being included, as written in the source code. |
IsAngled | Whether the file name was enclosed in angle brackets; otherwise, it was enclosed in quotes. |
FilenameRange | The character range of the quotes or angle brackets for the written file name. |
File | The actual file that may be included by this inclusion directive. |
SearchPath | Contains the search path which was used to find the file in the file system. If the file was found via an absolute include path, SearchPath will be empty. For framework includes, the SearchPath and RelativePath will be split up. For example, if an include of "Some/Some.h" is found via the framework path "path/to/Frameworks/Some.framework/Headers/Some.h", SearchPath will be "path/to/Frameworks/Some.framework/Headers" and RelativePath will be "Some.h". |
RelativePath | The path relative to SearchPath, at which the include file was found. This is equal to FileName except for framework includes. |
Imported | The module, whenever an inclusion directive was automatically turned into a module import or null otherwise. |
FileType | The characteristic kind, indicates whether a file or directory holds normal user code, system code, or system code which is implicitly 'extern "C"' in C++ mode. |
Reimplemented in clang::PPChainedCallbacks, and clang::MacroPPCallbacks.
Definition at line 124 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever a macro definition is seen.
Reimplemented in clang::PPChainedCallbacks, and clang::MacroPPCallbacks.
Definition at line 258 of file PPCallbacks.h.
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inlinevirtual |
Called by Preprocessor::HandleMacroExpandedIdentifier when a macro invocation is found.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 253 of file PPCallbacks.h.
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inlinevirtual |
Hook called whenever a macro #undef is seen.
MacroNameTok | The active Token |
MD | A MacroDefinition for the named macro. |
Undef | New MacroDirective if the macro was defined, null otherwise. |
MD is released immediately following this callback.
Reimplemented in clang::PPChainedCallbacks, and clang::MacroPPCallbacks.
Definition at line 268 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked whenever there was an explicit module-import syntax.
ImportLoc | The location of import directive token. |
Path | The identifiers (and their locations) of the module "path", e.g., "std.vector" would be split into "std" and "vector". |
Imported | The imported module; can be null if importing failed. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 146 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked when a #pragma clang assume_nonnull begin directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 245 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked when a #pragma clang assume_nonnull end directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 249 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked when a #pragma comment directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 170 of file PPCallbacks.h.
Referenced by ParseAlignPragma().
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inlinevirtual |
Callback invoked when a #pragma clang __debug directive is read.
Loc | The location of the debug directive. |
DebugType | The identifier following __debug. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 183 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Callback invoked when a #pragma detect_mismatch directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 176 of file PPCallbacks.h.
Referenced by ParseAlignPragma().
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inlinevirtual |
Callback invoked when a #pragma gcc diagnostic directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 220 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Callback invoked when a #pragma gcc diagnostic pop directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 215 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Callback invoked when a #pragma gcc diagnostic push directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 209 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Callback invoked when start reading any pragma directive.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 165 of file PPCallbacks.h.
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inlinevirtual |
Callback invoked when a #pragma message directive is read.
Loc | The location of the message directive. |
Namespace | The namespace of the message directive. |
Kind | The type of the message directive. |
Str | The text of the message directive. |
Reimplemented in clang::PPChainedCallbacks.
Definition at line 203 of file PPCallbacks.h.
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inlinevirtual |
Called when an OpenCL extension is either disabled or enabled with a pragma.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 225 of file PPCallbacks.h.
Referenced by ParseAlignPragma().
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inlinevirtual |
Callback invoked when a #pragma warning directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 231 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Callback invoked when a #pragma warning(pop) directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 240 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Callback invoked when a #pragma warning(push) directive is read.
Reimplemented in clang::PPChainedCallbacks.
Definition at line 236 of file PPCallbacks.h.
Referenced by clang::Preprocessor::LexOnOffSwitch().
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inlinevirtual |
Hook called when a source range is skipped.
Range | The SourceRange that was skipped. The range begins at the #if/#else directive and ends after the #endif/#else directive. |
EndifLoc | The end location of the 'endif' token, which may precede the range skipped by the directive (e.g excluding comments after an 'endif'). |
Reimplemented in clang::PPChainedCallbacks, and clang::CoverageSourceInfo.
Definition at line 291 of file PPCallbacks.h.