Symbol Class Reference

#include "lib/symbol.hpp"

Description

Token or Atom with distinct identity.

It can be created from arbitrary strings, yet not altered

Note

same literal string==same pointer representation

Definition at line 118 of file symbol.hpp.

Static Public Attributes
static Symbol	ANY = "*"
static Symbol	EMPTY = ""
static Symbol	BOTTOM = "⟂"
static Symbol	FAILURE = "↯"

Public Member Functions
	Symbol (CStr lit=NULL)
	Symbol (std::string &&definition)
	create Symbol by symbol table lookup.
	Symbol (std::string const &str)
	Symbol (Literal const &base, std::string const &ext)
	Symbol (Literal const &base, CStr ext)
	Symbol (Symbol const &)=default
	Symbol (Symbol &&)=default
Symbol &	operator= (Symbol const &)=default
Symbol &	operator= (Symbol &&)=default
	operator bool () const
bool	empty () const
Public Member Functions inherited from Literal
constexpr	Literal () noexcept
	empty string by default
constexpr	Literal (CStr literal) noexcept
constexpr	Literal (Literal const &) noexcept=default
constexpr Literal &	operator= (Literal const &) noexcept=default
constexpr	operator CStr () const
constexpr const char *	c () const
constexpr bool	empty () const
constexpr bool	operator== (CStr cString) const
	equality on Literal and Symbol values is defined based on the content, not the address.
constexpr size_t	length () const

Additional Inherited Members
Protected Member Functions inherited from Literal
Literal &	operator= (CStr newStr) noexcept
	Assignment generally prohibited.

Constructor & Destructor Documentation

Symbol() [1/7]

Symbol ( CStr  lit = NULL )

inline

Definition at line 127 of file symbol.hpp.

Symbol() [2/7]

Symbol ( std::string &&  definition )

explicit

create Symbol by symbol table lookup.

Note

identical strings will be mapped to the same Symbol (embedded pointer)

Warning

potential lock contention, since each ctor call needs to do a lookup

Remarks

since lumiera::LifecycleHook entries use a Symbol, the symbol table is implemented as Meyer's singleton and pulled up early, way before main()

Definition at line 61 of file symbol-impl.cpp.

Symbol() [3/7]

Symbol ( std::string const &  str )

inline

Definition at line 134 of file symbol.hpp.

Symbol() [4/7]

Symbol ( Literal const &  base, std::string const &  ext  )

inline

Definition at line 138 of file symbol.hpp.

Symbol() [5/7]

Symbol ( Literal const &  base, CStr  ext  )

inline

Definition at line 142 of file symbol.hpp.

Symbol() [6/7]

Symbol ( Symbol const &  )

default

Symbol() [7/7]

Symbol ( Symbol &&  )

default

Member Function Documentation

operator=() [1/2]

Symbol & operator= ( Symbol const &  )

default

operator=() [2/2]

Symbol & operator= ( Symbol &&  )

default

operator bool()

operator bool ( ) const

inlineexplicit

Definition at line 152 of file symbol.hpp.

References Symbol::empty().

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empty()

bool empty ( ) const

inline

Definition at line 153 of file symbol.hpp.

References Symbol::BOTTOM, Literal::c(), and Symbol::EMPTY.

Referenced by Symbol::operator bool().

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Member Data Documentation

ANY

Symbol ANY = "*"

static

Definition at line 122 of file symbol.hpp.

Referenced by stage::interact::anonymous_namespace{ui-coord-resolver.cpp}::find_wildcardFree_suffix(), UICoord::isExplicit(), UICoord::isExtendedBelow(), UICoord::isPresent(), UICoord::isWildcard(), PathArray< chunk_size >::normalise(), and UICoordResolver::pathResolution().

EMPTY

Symbol EMPTY = ""

static

Definition at line 123 of file symbol.hpp.

Referenced by UICoord::accesComponent(), TimeGrid::build(), Symbol_test::checkSymbolCreation(), Symbol::empty(), stage::interact::anonymous_namespace{ui-coord-resolver.cpp}::find_wildcardFree_suffix(), PathArray< chunk_size >::normalise(), UICoordResolver::pathResolution(), PathArray_test::verify_basics(), UICoord_test::verify_basics(), PathArray_test::verify_iteration(), and UICoord_test::verify_stringRepr().

BOTTOM

Symbol BOTTOM = "⟂"

static

Definition at line 124 of file symbol.hpp.

Referenced by Symbol_test::checkSymbolCreation(), GenNodeLocationQuery::determineAnchor(), Symbol::empty(), CommandRegistry::findDefinition(), GenNodeLocationQuery::getChildren(), UICoordResolver::isAnchored(), and UICoordResolver_test::verify_backingQuery().

FAILURE

Symbol FAILURE = "↯"

static

Definition at line 125 of file symbol.hpp.

Referenced by Symbol_test::checkSymbolCreation(), and Command::getID().

Inheritance diagram for Symbol:

Collaboration diagram for Symbol:

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The documentation for this class was generated from the following files:

• symbol.hpp
• symbol-impl.cpp