fe::Driver Struct Reference

Use/derive from this class for "global" variables that you need all over the place. More...

#include <fe/driver.h>

Inheritance diagram for fe::Driver:

Public Member Functions
	Driver ()
	Driver (std::unique_ptr< Diag > diag)
	Installs diag right away, so Driver::error renders through it from the very first message.
	~Driver ()
	Driver (const Driver &)=delete
	Driver (Driver &&)=delete
Driver &	operator= (Driver)=delete
Diagnostics
Every frontend building block reports into Driver::error; Error::ack it before this Driver dies.
Error &	error ()
const Error &	error () const
Diag &	diag ()
const Diag &	diag () const
std::unique_ptr< Diag >	diag (std::unique_ptr< Diag > diag)
	Installs diag - a subclass of your own, typically - and yields the previous one.
Source Files
Register every file you lex here: a Loc is only as good as the SrcMap that keeps its Src alive.
SrcMap &	src ()
const SrcMap &	src () const
Dbg Interning
A node only has to store the DbgKey instead of a full Dbg. Both halves of a Dbg are already owned here: Dbg::sym is interned in this Driver's SymPool and Dbg::loc points into Driver::src.
Dbg	dbg (DbgKey key) const
DbgKey	dbg (Dbg dbg)
	Interns dbg and yields its DbgKey.
Public Member Functions inherited from fe::SymPool
	SymPool (const SymPool &)=delete
	SymPool () noexcept
	SymPool (SymPool &&other) noexcept
SymPool &	operator= (SymPool)=delete
Sym	sym (std::string_view s)
Sym	sym (const std::string &s)
Sym	sym (const char *s)
	s is a null-terminated C-string.

Additional Inherited Members
Public Types inherited from fe::SymPool
using	String = Sym::String

Detailed Description

Use/derive from this class for "global" variables that you need all over the place.

Well, there are not really global - that's the point of this class. It manages a SymPool, a SrcMap, the interned Dbgs, the Diag that lays out a diagnostic, and the Error they land in.

Note

Deliberately free of virtual functions - Driver::diag is where you plug in behavior of your own.

Warning

Not movable: Driver::error - and a Diag of your own - point back here.

Definition at line 22 of file driver.h.

Constructor & Destructor Documentation

Driver() [1/4]

fe::Driver::Driver

(

)

Referenced by Driver(), Driver(), and operator=().

Driver() [2/4]

fe::Driver::Driver ( std::unique_ptr< Diag > diag )

explicit

Installs diag right away, so Driver::error renders through it from the very first message.

Warning

Never nullptr.

References diag().

~Driver()

fe::Driver::~Driver

(

)

Driver() [3/4]

fe::Driver::Driver ( const Driver & )

delete

References Driver().

Driver() [4/4]

fe::Driver::Driver ( Driver && )

delete

References Driver().

Member Function Documentation

dbg() [1/2]

DbgKey fe::Driver::dbg ( Dbg dbg )

inline

Interns dbg and yields its DbgKey.

Definition at line 67 of file driver.h.

References dbg(), and fe::DbgKey::DbgKey().

dbg() [2/2]

Dbg fe::Driver::dbg ( DbgKey key ) const

inline

Definition at line 64 of file driver.h.

Referenced by dbg().

diag() [1/3]

Diag & fe::Driver::diag ( )

inline

Definition at line 41 of file driver.h.

Referenced by diag(), and Driver().

diag() [2/3]

const Diag & fe::Driver::diag ( ) const

inline

Definition at line 42 of file driver.h.

diag() [3/3]

std::unique_ptr< Diag > fe::Driver::diag ( std::unique_ptr< Diag > diag )

inline

Installs diag - a subclass of your own, typically - and yields the previous one.

Warning

Never nullptr.

Definition at line 46 of file driver.h.

References diag().

error() [1/2]

Error & fe::Driver::error ( )

inline

Definition at line 38 of file driver.h.

error() [2/2]

const Error & fe::Driver::error ( ) const

inline

Definition at line 39 of file driver.h.

operator=()

Driver & fe::Driver::operator= ( Driver )

delete

References Driver().

src() [1/2]

SrcMap & fe::Driver::src ( )

inline

Definition at line 55 of file driver.h.

src() [2/2]

const SrcMap & fe::Driver::src ( ) const

inline

Definition at line 56 of file driver.h.

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The documentation for this struct was generated from the following file:

• fe/driver.h