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0034475514
For ObjC class method calls, map a metatype value back to an objc Class before emitting the ObjC call. This is dumb because we already map the original Class to a Swift metatype when we map the metatype instruction, but it gets ObjC class method calls working. Now that SIL keeps use chains, we could be easily smarter about this. Swift SVN r4558
113 lines
4.6 KiB
C++
113 lines
4.6 KiB
C++
//===--- GenObjC.h - Swift IR generation for Objective-C --------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides the private interface to Objective-C emission code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_IRGEN_GENOBJC_H
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#define SWIFT_IRGEN_GENOBJC_H
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namespace llvm {
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class Type;
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}
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namespace swift {
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class CanType;
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class Expr;
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class FuncDecl;
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class Substitution;
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namespace irgen {
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class AbstractCallee;
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class CallEmission;
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enum class ExplosionKind : unsigned;
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class IRGenFunction;
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class IRGenModule;
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/// Determine the natural limits on how we can call the given
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/// Objective-C member function.
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AbstractCallee getAbstractObjCMethodCallee(IRGenFunction &IGF, ValueDecl *fn);
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CallEmission prepareObjCMethodRootCall(IRGenFunction &IGF,
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ValueDecl *method,
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CanType substResultType,
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llvm::ArrayRef<Substitution> subs,
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ExplosionKind bestExplosion,
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unsigned bestUncurry,
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bool isSuper);
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void addObjCMethodCallImplicitArguments(IRGenFunction &IGF,
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CallEmission &emission,
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ValueDecl *method,
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ManagedValue self,
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CanType selfType,
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CanType searchType);
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CallEmission prepareObjCMethodCall(IRGenFunction &IGF,
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ValueDecl *method,
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Expr *self,
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CanType substResultType,
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llvm::ArrayRef<Substitution> subs,
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ExplosionKind bestExplosion,
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unsigned bestUncurry,
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CanType /*nullable*/ searchClass);
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/// Reclaim an autoreleased return value.
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llvm::Value *emitObjCRetainAutoreleasedReturnValue(IRGenFunction &IGF,
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llvm::Value *value);
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/// Build the components of an Objective-C method descriptor for the given
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/// method implementation.
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void emitObjCMethodDescriptorParts(IRGenModule &IGM,
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FuncDecl *method,
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llvm::Constant *&selectorRef,
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llvm::Constant *&atEncoding,
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llvm::Constant *&impl);
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/// Build the components of an Objective-C method descriptor for the given
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/// property's method implementations.
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void emitObjCGetterDescriptorParts(IRGenModule &IGM,
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VarDecl *property,
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llvm::Constant *&selectorRef,
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llvm::Constant *&atEncoding,
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llvm::Constant *&impl);
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/// Build the components of an Objective-C method descriptor for the given
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/// property's method implementations.
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void emitObjCSetterDescriptorParts(IRGenModule &IGM,
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VarDecl *property,
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llvm::Constant *&selectorRef,
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llvm::Constant *&atEncoding,
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llvm::Constant *&impl);
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/// Build an Objective-C method descriptor for the given method
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/// implementation.
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llvm::Constant *emitObjCMethodDescriptor(IRGenModule &IGM, FuncDecl *method);
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/// Build an Objective-C method descriptor for the given property's
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/// getter and setter methods.
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std::pair<llvm::Constant *, llvm::Constant *>
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emitObjCPropertyMethodDescriptors(IRGenModule &IGM, VarDecl *property);
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/// True if the FuncDecl requires an ObjC method descriptor.
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bool requiresObjCMethodDescriptor(FuncDecl *method);
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/// True if the VarDecl requires ObjC accessor methods and a property
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/// descriptor.
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bool requiresObjCPropertyDescriptor(VarDecl *property);
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} // end namespace irgen
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} // end namespace swift
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#endif
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