(3a82116d94569a1e6c06cedbcc13bcfa2ae94747)

#include "clangcodeparser.h"
#include "cppcodeparser.h"
#include "access.h"
#include "classnode.h"
#include "config.h"
#include "doc.h"
#include "enumnode.h"
#include "functionnode.h"
#include "genustypes.h"
#include "inclusionpolicy.h"
#include "namespacenode.h"
#include "propertynode.h"
#include "qdocdatabase.h"
#include "typedefnode.h"
#include "variablenode.h"
#include "sourcefileparser.h"
#include "utilities.h"
#include <QtCore/qdebug.h>
#include <QtCore/qdir.h>
#include <QtCore/qelapsedtimer.h>
#include <QtCore/qfile.h>
#include <QtCore/qregularexpression.h>
#include <QtCore/qscopedvaluerollback.h>
#include <QtCore/qtemporarydir.h>
#include <QtCore/qtextstream.h>
#include <QtCore/qvarlengtharray.h>
#include <clang-c/Index.h>
#include <clang/AST/ASTConcept.h>
#include <clang/AST/Decl.h>
#include <clang/AST/DeclFriend.h>
#include <clang/AST/DeclTemplate.h>
#include <clang/AST/Expr.h>
#include <clang/AST/ExprConcepts.h>
#include <clang/AST/Type.h>
#include <clang/AST/TypeLoc.h>
#include <clang/Basic/SourceLocation.h>
#include <clang/Frontend/ASTUnit.h>
#include <clang/Lex/Lexer.h>
#include <llvm/Support/Casting.h>
#include "clang/AST/QualTypeNames.h"
#include "template_declaration.h"
#include <algorithm>
#include <cstdio>
#include <optional>
#include <string_view>

Include dependency graph for clangcodeparser.cpp:

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Classes
struct	CompilationIndex
struct	TranslationUnit
struct	FileCacheEntry
	Returns the spelling in the file for a source range. More...
class	ClangVisitor

Functions
template<class T>
static QDebug	operator<< (QDebug debug, const std::vector< T > &v)
static void	printDiagnostics (const CXTranslationUnit &translationUnit)
static const clang::Decl *	get_cursor_declaration (CXCursor cursor)
	Returns the underlying Decl that cursor represents.
static std::string	ensureAnonymousTagKeyword (std::string typeName, clang::QualType type)
	Returns a string representing the name of type as if it was referred to at the end of the translation unit that it was parsed from.
static std::string	get_fully_qualified_type_name (clang::QualType type, const clang::ASTContext &declaration_context)
static QString	cleanAnonymousTypeName (const QString &typeName)
static std::string	get_expression_as_string (const clang::Expr *expression, const clang::ASTContext &declaration_context)
static void	collect_concept_references (const clang::Stmt *node, std::vector< std::string > &out)
static std::string	get_default_value_initializer_as_string (const clang::TemplateTypeParmDecl *parameter)
static std::string	get_default_value_initializer_as_string (const clang::NonTypeTemplateParmDecl *parameter)
static std::string	get_default_value_initializer_as_string (const clang::TemplateTemplateParmDecl *parameter)
static std::string	get_default_value_initializer_as_string (const clang::ParmVarDecl *parameter)
static std::string	get_default_value_initializer_as_string (const clang::NamedDecl *declaration)
template<typename T>
bool	visitChildrenLambda (CXCursor cursor, T &&lambda)
	Call clang_visitChildren on the given cursor with the lambda as a callback T can be any functor that is callable with a CXCursor parameter and returns a CXChildVisitResult (in other word compatible with function<CXChildVisitResult(CXCursor)>.
static QString	fromCXString (CXString &&string)
	convert a CXString to a QString, and dispose the CXString
static const clang::TemplateSpecializationType *	find_template_specialization_through_sugar (const clang::Type *type)
static bool	is_enable_if_name (const std::string &qualified_name)
static std::optional< SfinaeConstraint >	detect_sfinae_constraint (const clang::NonTypeTemplateParmDecl *param)
static RelaxedTemplateDeclaration	get_template_declaration (const clang::TemplateDecl *template_declaration)
static Location	fromCXSourceLocation (CXSourceLocation location)
	convert a CXSourceLocation to a qdoc Location
static Access	fromCX_CXXAccessSpecifier (CX_CXXAccessSpecifier spec)
	convert a CX_CXXAccessSpecifier to Node::Access
static QString	fromCache (const QByteArray &cache, unsigned int offset1, unsigned int offset2)
static QString	readFile (CXFile cxFile, unsigned int offset1, unsigned int offset2)
static QString	getSpelling (CXSourceRange range)
QString	functionName (CXCursor cursor)
	Returns the function name from a given cursor representing a function declaration.
static QString	reconstructQualifiedPathForCursor (CXCursor cur)
	Reconstruct the qualified path name of a function that is being overridden.
static std::optional< QString >	classNameFromParameterType (clang::QualType param_type)
static void	findHiddenFriendCandidates (QDocDatabase qdb, const QString &funcName, const clang::FunctionDecl func_decl, NodeVector &candidates)
static Node *	findNodeForCursor (QDocDatabase *qdb, CXCursor cur)
	Find the node from the QDocDatabase qdb that corresponds to the declaration represented by the cursor cur, if it exists.
static void	setOverridesForFunction (FunctionNode *fn, CXCursor cursor)
static std::vector< const char * >	toConstCharPointers (const std::vector< QByteArray > &args)
void	getDefaultArgs (const QList< QByteArray > &defines, std::vector< QByteArray > &args)
	Load the default arguments and the defines into args.
void	getMoreArgs (const std::vector< QByteArray > &include_paths, std::vector< QByteArray > &args)
	Load the include paths into args.
std::optional< PCHFile >	buildPCH (QDocDatabase *qdb, QString module_header, const std::set< Config::HeaderFilePath > &all_headers, const std::vector< QByteArray > &include_paths, const QList< QByteArray > &defines, const InclusionPolicy &policy)
	Building the PCH must be possible when there are no .cpp files, so it is moved here to its own member function, and it is called after the list of header files is complete.
static float	getUnpatchedVersion (QString t)

Variables
static const auto	kClangDontDisplayDiagnostics = 0
static CXTranslationUnit_Flags	flags_ = static_cast<CXTranslationUnit_Flags>(0)
constexpr const char	fnDummyFileName [] = "/fn_dummyfile.cpp"
static const char *	defaultArgs_ []

Function Documentation

◆ buildPCH()

std::optional< PCHFile > buildPCH	(	QDocDatabase *	qdb,
		QString	module_header,
		const std::set< Config::HeaderFilePath > &	all_headers,
		const std::vector< QByteArray > &	include_paths,
		const QList< QByteArray > &	defines,
		const InclusionPolicy &	policy )

Building the PCH must be possible when there are no .cpp files, so it is moved here to its own member function, and it is called after the list of header files is complete.

Definition at line 2193 of file clangcodeparser.cpp.

References flags_, kClangDontDisplayDiagnostics, printDiagnostics(), TranslationUnit::tu, and ClangVisitor::visitChildren().

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◆ classNameFromParameterType()

std::optional< QString > classNameFromParameterType ( clang::QualType param_type )

static

Extract a class name from a Clang parameter type, stripping references, pointers, and qualifiers. Returns {std::nullopt} if the type doesn't represent a class.

Definition at line 923 of file clangcodeparser.cpp.

◆ cleanAnonymousTypeName()

QString cleanAnonymousTypeName ( const QString & typeName )

static

Definition at line 276 of file clangcodeparser.cpp.

◆ collect_concept_references()

void collect_concept_references	(	const clang::Stmt *	node,
		std::vector< std::string > &	out )

static

Definition at line 322 of file clangcodeparser.cpp.

◆ detect_sfinae_constraint()

std::optional< SfinaeConstraint > detect_sfinae_constraint ( const clang::NonTypeTemplateParmDecl * param )

static

Definition at line 544 of file clangcodeparser.cpp.

References find_template_specialization_through_sugar().

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◆ ensureAnonymousTagKeyword()

std::string ensureAnonymousTagKeyword	(	std::string	typeName,
		clang::QualType	type )

static

Returns a string representing the name of type as if it was referred to at the end of the translation unit that it was parsed from.

For example, given the following code:

namespace foo {
   template<typename T>
   struct Bar {
      using Baz = const T&;
 
      void bam(Baz);
   };
}

Given a parsed translation unit and an AST node, say {decl}, representing the parameter declaration of the first argument of {bam}, calling {get_fully_qualified_name(decl->getType(), * decl->getASTContext())} would result in the string {foo::Bar<T>::Baz}.

This should generally be used every time the stringified representation of a type is acquired as part of parsing with Clang, so as to ensure a consistent behavior and output.

Definition at line 201 of file clangcodeparser.cpp.

◆ find_template_specialization_through_sugar()

const clang::TemplateSpecializationType * find_template_specialization_through_sugar ( const clang::Type * type )

static

Definition at line 481 of file clangcodeparser.cpp.

Referenced by detect_sfinae_constraint().

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◆ findHiddenFriendCandidates()

void findHiddenFriendCandidates	(	QDocDatabase *	qdb,
		const QString &	funcName,
		const clang::FunctionDecl *	func_decl,
		NodeVector &	candidates )

static

Definition at line 968 of file clangcodeparser.cpp.

◆ findNodeForCursor()

Node * findNodeForCursor	(	QDocDatabase *	qdb,
		CXCursor	cur )

static

Find the node from the QDocDatabase qdb that corresponds to the declaration represented by the cursor cur, if it exists.

Definition at line 998 of file clangcodeparser.cpp.

References findNodeForCursor(), fromCXSourceLocation(), get_cursor_declaration(), Node< _Tp >::isAggregate(), Node< _Tp >::isClassNode(), Node< _Tp >::isFunction(), Node< _Tp >::isNamespace(), Node< _Tp >::isTypedef(), Node< _Tp >::isVariable(), and QDocDatabase::primaryTreeRoot().

Referenced by findNodeForCursor().

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◆ fromCache()

QString fromCache	(	const QByteArray &	cache,
		unsigned int	offset1,
		unsigned int	offset2 )

inlinestatic

Definition at line 806 of file clangcodeparser.cpp.

◆ fromCX_CXXAccessSpecifier()

Access fromCX_CXXAccessSpecifier ( CX_CXXAccessSpecifier spec )

static

convert a CX_CXXAccessSpecifier to Node::Access

Definition at line 782 of file clangcodeparser.cpp.

◆ fromCXSourceLocation()

Location fromCXSourceLocation ( CXSourceLocation location )

static

convert a CXSourceLocation to a qdoc Location

Definition at line 768 of file clangcodeparser.cpp.

References Location::setColumnNo(), and Location::setLineNo().

Referenced by findNodeForCursor(), and ClangCodeParser::parse_cpp_file().

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◆ fromCXString()

QString fromCXString ( CXString && string )

static

convert a CXString to a QString, and dispose the CXString

Definition at line 466 of file clangcodeparser.cpp.

◆ functionName()

QString functionName ( CXCursor cursor )

Returns the function name from a given cursor representing a function declaration.

This is usually clang_getCursorSpelling, but not for the conversion function in which case it is a bit more complicated

Definition at line 857 of file clangcodeparser.cpp.

◆ get_cursor_declaration()

const clang::Decl * get_cursor_declaration ( CXCursor cursor )

static

Returns the underlying Decl that cursor represents.

This can be used to drop back down from a LibClang's CXCursor to the underlying C++ AST that Clang provides.

It should be used when LibClang does not expose certain functionalities that are available in the C++ AST.

The CXCursor should represent a declaration. Usages of this function on CXCursors that do not represent a declaration may produce undefined results.

Definition at line 146 of file clangcodeparser.cpp.

Referenced by findNodeForCursor().

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◆ get_default_value_initializer_as_string() [1/5]

std::string get_default_value_initializer_as_string ( const clang::NamedDecl * declaration )

static

Definition at line 428 of file clangcodeparser.cpp.

◆ get_default_value_initializer_as_string() [2/5]

std::string get_default_value_initializer_as_string ( const clang::NonTypeTemplateParmDecl * parameter )

static

Definition at line 366 of file clangcodeparser.cpp.

◆ get_default_value_initializer_as_string() [3/5]

std::string get_default_value_initializer_as_string ( const clang::ParmVarDecl * parameter )

static

Definition at line 410 of file clangcodeparser.cpp.

◆ get_default_value_initializer_as_string() [4/5]

std::string get_default_value_initializer_as_string ( const clang::TemplateTemplateParmDecl * parameter )

static

Definition at line 386 of file clangcodeparser.cpp.

◆ get_default_value_initializer_as_string() [5/5]

std::string get_default_value_initializer_as_string ( const clang::TemplateTypeParmDecl * parameter )

static

Definition at line 344 of file clangcodeparser.cpp.

◆ get_expression_as_string()

std::string get_expression_as_string	(	const clang::Expr *	expression,
		const clang::ASTContext &	declaration_context )

static

Definition at line 298 of file clangcodeparser.cpp.

◆ get_fully_qualified_type_name()

std::string get_fully_qualified_type_name	(	clang::QualType	type,
		const clang::ASTContext &	declaration_context )

static

Definition at line 255 of file clangcodeparser.cpp.

References clang::TypeName::getFullyQualifiedName().

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◆ get_template_declaration()

RelaxedTemplateDeclaration get_template_declaration ( const clang::TemplateDecl * template_declaration )

static

Definition at line 621 of file clangcodeparser.cpp.

◆ getDefaultArgs()

void getDefaultArgs	(	const QList< QByteArray > &	defines,
		std::vector< QByteArray > &	args )

Load the default arguments and the defines into args.

Clear args first.

Definition at line 2160 of file clangcodeparser.cpp.

References defaultArgs_.

◆ getMoreArgs()

void getMoreArgs	(	const std::vector< QByteArray > &	include_paths,
		std::vector< QByteArray > &	args )

Load the include paths into args.

Definition at line 2174 of file clangcodeparser.cpp.

◆ getSpelling()

QString getSpelling ( CXSourceRange range )

static

Definition at line 837 of file clangcodeparser.cpp.

◆ getUnpatchedVersion()

float getUnpatchedVersion ( QString t )

static

Definition at line 2336 of file clangcodeparser.cpp.

◆ is_enable_if_name()

bool is_enable_if_name ( const std::string & qualified_name )

static

Definition at line 509 of file clangcodeparser.cpp.

◆ operator<<()

template<class T>

QDebug operator<<	(	QDebug	debug,
		const std::vector< T > &	v )

static

Definition at line 98 of file clangcodeparser.cpp.

◆ printDiagnostics()

void printDiagnostics ( const CXTranslationUnit & translationUnit )

static

Definition at line 115 of file clangcodeparser.cpp.

Referenced by buildPCH(), FnCommandParser::operator()(), and ClangCodeParser::parse_cpp_file().

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◆ readFile()

QString readFile	(	CXFile	cxFile,
		unsigned int	offset1,
		unsigned int	offset2 )

static

Definition at line 812 of file clangcodeparser.cpp.

◆ reconstructQualifiedPathForCursor()

QString reconstructQualifiedPathForCursor ( CXCursor cur )

static

Reconstruct the qualified path name of a function that is being overridden.

Definition at line 885 of file clangcodeparser.cpp.

◆ setOverridesForFunction()

void setOverridesForFunction	(	FunctionNode *	fn,
		CXCursor	cursor )

static

Definition at line 1192 of file clangcodeparser.cpp.

References FunctionNode::setOverride().

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◆ toConstCharPointers()

std::vector< const char * > toConstCharPointers ( const std::vector< QByteArray > & args )

static

Definition at line 2147 of file clangcodeparser.cpp.

◆ visitChildrenLambda()

template<typename T>

bool visitChildrenLambda	(	CXCursor	cursor,
		T &&	lambda )

Call clang_visitChildren on the given cursor with the lambda as a callback T can be any functor that is callable with a CXCursor parameter and returns a CXChildVisitResult (in other word compatible with function<CXChildVisitResult(CXCursor)>.

Definition at line 454 of file clangcodeparser.cpp.

Variable Documentation

◆ defaultArgs_

const char * defaultArgs_

static

Initial value:

                               = {
    "-std=c++20",
 
    "-fPIC",
 
 
 
    "-DQ_QDOC",
    "-DQ_CLANG_QDOC",
    "-DQT_DISABLE_DEPRECATED_UP_TO=0",
    "-DQT_ANNOTATE_CLASS(type,...)=static_assert(sizeof(#__VA_ARGS__),#type);",
    "-DQT_ANNOTATE_CLASS2(type,a1,a2)=static_assert(sizeof(#a1,#a2),#type);",
    "-DQT_ANNOTATE_FUNCTION(a)=__attribute__((annotate(#a)))",
    "-DQT_ANNOTATE_ACCESS_SPECIFIER(a)=__attribute__((annotate(#a)))",
    "-Wno-constant-logical-operand",
    "-Wno-macro-redefined",
    "-Wno-nullability-completeness",
    "-fvisibility=default",
    "-ferror-limit=0",
    "-xc++"
}

Definition at line 2125 of file clangcodeparser.cpp.

Referenced by getDefaultArgs().

◆ flags_

CXTranslationUnit_Flags flags_ = static_cast<CXTranslationUnit_Flags>(0)

static

Definition at line 92 of file clangcodeparser.cpp.

Referenced by buildPCH(), and ClangCodeParser::parse_cpp_file().

◆ fnDummyFileName

const char fnDummyFileName = "/fn_dummyfile.cpp"

constexpr

Definition at line 94 of file clangcodeparser.cpp.

Referenced by FnCommandParser::operator()().

◆ kClangDontDisplayDiagnostics

const auto kClangDontDisplayDiagnostics = 0

static

Definition at line 90 of file clangcodeparser.cpp.

Referenced by buildPCH(), FnCommandParser::operator()(), and ClangCodeParser::parse_cpp_file().

(3a82116d94569a1e6c06cedbcc13bcfa2ae94747)

Classes

Functions

Variables

Function Documentation

◆ buildPCH()

◆ classNameFromParameterType()

◆ cleanAnonymousTypeName()

◆ collect_concept_references()

◆ detect_sfinae_constraint()

◆ ensureAnonymousTagKeyword()

◆ find_template_specialization_through_sugar()

◆ findHiddenFriendCandidates()

◆ findNodeForCursor()

◆ fromCache()

◆ fromCX_CXXAccessSpecifier()

◆ fromCXSourceLocation()

◆ fromCXString()

◆ functionName()

◆ get_cursor_declaration()

◆ get_default_value_initializer_as_string() [1/5]

◆ get_default_value_initializer_as_string() [2/5]

◆ get_default_value_initializer_as_string() [3/5]

◆ get_default_value_initializer_as_string() [4/5]

◆ get_default_value_initializer_as_string() [5/5]

◆ get_expression_as_string()

◆ get_fully_qualified_type_name()

◆ get_template_declaration()

◆ getDefaultArgs()

◆ getMoreArgs()

◆ getSpelling()

◆ getUnpatchedVersion()

◆ is_enable_if_name()

◆ operator<<()

◆ printDiagnostics()

◆ readFile()

◆ reconstructQualifiedPathForCursor()

◆ setOverridesForFunction()

◆ toConstCharPointers()

◆ visitChildrenLambda()

Variable Documentation

◆ defaultArgs_

◆ flags_

◆ fnDummyFileName

◆ kClangDontDisplayDiagnostics