/*
* Copyright 2016 Google Inc .
*
* Use of this source code is governed by a BSD - style license that can be
* found in the LICENSE file .
*/
#ifndef SKSL_FUNCTIONREFERENCE
#define SKSL_FUNCTIONREFERENCE
#include "src/sksl/SkSLBuiltinTypes.h"
#include "src/sksl/SkSLContext.h"
#include "src/sksl/ir/SkSLExpression.h"
#include "src/sksl/ir/SkSLFunctionDeclaration.h"
namespace SkSL {
/**
* An identifier referring to a function name . This is an intermediate value : FunctionReferences are
* always eventually replaced by FunctionCalls in valid programs .
*/
class FunctionReference final : public Expression {
public :
inline static constexpr Kind kIRNodeKind = Kind::kFunctionReference;
FunctionReference(const Context& context, Position pos,
const FunctionDeclaration* overloadChain)
: INHERITED(pos, kIRNodeKind, context.fTypes.fInvalid.get())
, fOverloadChain(overloadChain) {}
const FunctionDeclaration* overloadChain() const {
return fOverloadChain;
}
std::unique_ptr<Expression> clone(Position pos) const override {
return std::unique_ptr<Expression>(new FunctionReference(pos, this ->overloadChain(),
&this ->type()));
}
std::string description(OperatorPrecedence) const override {
return "<function>" ;
}
private :
FunctionReference(Position pos, const FunctionDeclaration* overloadChain, const Type* type)
: INHERITED(pos, kIRNodeKind, type)
, fOverloadChain(overloadChain) {}
const FunctionDeclaration* fOverloadChain;
using INHERITED = Expression;
};
} // namespace SkSL
#endif
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