SkSL::Setting Class Reference

#include <SkSLSetting.h>

Inheritance diagram for SkSL::Setting:

Public Types
using	CapsPtr = const bool ShaderCaps::*
Public Types inherited from SkSL::Expression
enum class	ComparisonResult { kUnknown = -1 , kNotEqual , kEqual }
using	Kind = ExpressionKind

Public Member Functions
	Setting (Position pos, CapsPtr capsPtr, const Type *type)
std::unique_ptr< Expression >	toLiteral (const ShaderCaps &caps) const
std::unique_ptr< Expression >	clone (Position pos) const override
std::string_view	name () const
CapsPtr	capsPtr () const
std::string	description (OperatorPrecedence) const override
Public Member Functions inherited from SkSL::Expression
	Expression (Position pos, Kind kind, const Type *type)
Kind	kind () const
virtual const Type &	type () const
bool	isAnyConstructor () const
bool	isIntLiteral () const
bool	isFloatLiteral () const
bool	isBoolLiteral () const
AnyConstructor &	asAnyConstructor ()
const AnyConstructor &	asAnyConstructor () const
bool	isIncomplete (const Context &context) const
virtual ComparisonResult	compareConstant (const Expression &other) const
CoercionCost	coercionCost (const Type &target) const
virtual bool	supportsConstantValues () const
virtual std::optional< double >	getConstantValue (int n) const
std::unique_ptr< Expression >	clone () const
std::string	description () const final
Public Member Functions inherited from SkSL::IRNode
virtual	~IRNode ()
	IRNode (const IRNode &)=delete
IRNode &	operator= (const IRNode &)=delete
Position	position () const
void	setPosition (Position p)
template<typename T >
bool	is () const
template<typename T >
const T &	as () const
template<typename T >
T &	as ()

Static Public Member Functions
static std::unique_ptr< Expression >	Convert (const Context &context, Position pos, const std::string_view &name)
static std::unique_ptr< Expression >	Make (const Context &context, Position pos, CapsPtr capsPtr)
Static Public Member Functions inherited from SkSL::Poolable
static void *	operator new (const size_t size)
static void	operator delete (void *ptr)

Static Public Attributes
static constexpr Kind	kIRNodeKind = Kind::kSetting

Additional Inherited Members
Public Attributes inherited from SkSL::IRNode
Position	fPosition
Protected Member Functions inherited from SkSL::IRNode
	IRNode (Position position, int kind)
Protected Attributes inherited from SkSL::IRNode
int	fKind

Detailed Description

Represents a compile-time constant setting, such as sk_Caps.integerSupport. These IRNodes are used when assembling a module. These nodes are replaced with the value of the setting during compilation when ShaderCaps are available.

Definition at line 33 of file SkSLSetting.h.

Member Typedef Documentation

CapsPtr

using SkSL::Setting::CapsPtr = const bool ShaderCaps::*

Definition at line 37 of file SkSLSetting.h.

Constructor & Destructor Documentation

Setting()

SkSL::Setting::Setting ( Position  pos, CapsPtr  capsPtr, const Type *  type  )

inline

Definition at line 39 of file SkSLSetting.h.

        : INHERITED(pos, kIRNodeKind, type)
        , fCapsPtr(capsPtr) {}

Member Function Documentation

capsPtr()

CapsPtr SkSL::Setting::capsPtr ( ) const

inline

Definition at line 63 of file SkSLSetting.h.

{ return fCapsPtr; }

clone()

std::unique_ptr< Expression > SkSL::Setting::clone ( Position  pos ) const

inlineoverridevirtual

Implements SkSL::Expression.

Definition at line 57 of file SkSLSetting.h.

                                                                 {
        return std::make_unique<Setting>(pos, fCapsPtr, &this->type());
    }

Convert()

std::unique_ptr< Expression > SkSL::Setting::Convert ( const Context &  context, Position  pos, const std::string_view &  name  )

static

Definition at line 63 of file SkSLSetting.cpp.

                                                                         {
    SkASSERT(context.fConfig);
 
    if (!ProgramConfig::AllowsPrivateIdentifiers(context.fConfig->fKind)) {
        context.fErrors->error(pos, "name 'sk_Caps' is reserved");
        return nullptr;
    }
 
    const CapsPtr* capsPtr = caps_lookup_table().find(name);
    if (!capsPtr) {
        context.fErrors->error(pos, "unknown capability flag '" + std::string(name) + "'");
        return nullptr;
    }
 
    return Setting::Make(context, pos, *capsPtr);
}

description()

std::string SkSL::Setting::description ( OperatorPrecedence  ) const

inlineoverridevirtual

Implements SkSL::Expression.

Definition at line 65 of file SkSLSetting.h.

                                                             {
        return "sk_Caps." + std::string(this->name());
    }

Make()

std::unique_ptr< Expression > SkSL::Setting::Make ( const Context &  context, Position  pos, CapsPtr  capsPtr  )

static

Definition at line 82 of file SkSLSetting.cpp.

                                                                                             {
    SkASSERT(ProgramConfig::AllowsPrivateIdentifiers(context.fConfig->fKind));
 
    return std::make_unique<Setting>(pos, capsPtr, context.fTypes.fBool.get());
}

name()

std::string_view SkSL::Setting::name

(

)

const

Definition at line 54 of file SkSLSetting.cpp.

                                   {
    for (const auto& [name, capsPtr] : caps_lookup_table()) {
        if (capsPtr == fCapsPtr) {
            return name;
        }
    }
    SkUNREACHABLE;
}

toLiteral()

std::unique_ptr< Expression > SkSL::Setting::toLiteral

(

const ShaderCaps &

caps

)

const

Definition at line 88 of file SkSLSetting.cpp.

                                                                         {
    return Literal::MakeBool(fPosition, caps.*fCapsPtr, &this->type());
}

Member Data Documentation

kIRNodeKind

constexpr Kind SkSL::Setting::kIRNodeKind = Kind::kSetting

inlinestaticconstexpr

Definition at line 35 of file SkSLSetting.h.

---

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

• third_party/skia/src/sksl/ir/SkSLSetting.h
• third_party/skia/src/sksl/ir/SkSLSetting.cpp