| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #pragma once |
| |
| #include <vector> |
| |
| #include "garnet/bin/zxdb/symbols/type.h" |
| |
| namespace zxdb { |
| |
| // This class represents types for functions. This corresponds to a dwarf |
| // "subroutine type" entry which has no direct analog in C/C++. |
| // |
| // When referenced by a "pointer" ModifiedType class, the combination becomes a |
| // pointer to a function. When referenced by a MemberPtr class, the combination |
| // becomes a pointer to a member function. |
| class FunctionType final : public Type { |
| public: |
| // Construct with fxl::MakeRefCounted(). |
| |
| // Symbol overrides. |
| const FunctionType* AsFunctionType() const override; |
| |
| // The return value type. This should be some kind of Type object. Will be |
| // empty for void return types. |
| const LazySymbol& return_type() const { return return_type_; } |
| |
| // Parameters passed to the function. These should be Variable objects. |
| const std::vector<LazySymbol>& parameters() const { return parameters_; } |
| |
| // Computes the name of this function when it's a member function pointer of |
| // the given type. For example, if container is "Foo", this might return |
| // "void (Foo::*)(int)" |
| // |
| // If |container| is empty, this will compute the name assuming it's not a |
| // member pointer. |
| std::string ComputeFullNameForFunctionPtr(const std::string& container) const; |
| |
| protected: |
| // Symbol protected overrides. |
| std::string ComputeFullName() const override; |
| |
| private: |
| FRIEND_REF_COUNTED_THREAD_SAFE(FunctionType); |
| FRIEND_MAKE_REF_COUNTED(FunctionType); |
| |
| // The return type can also be a null symbol when the return type is void. |
| FunctionType(LazySymbol return_type, std::vector<LazySymbol> parameters); |
| virtual ~FunctionType(); |
| |
| // These two functions return the strings associated with the return type |
| // and parameters of this function. They are used as building blocks for the |
| // other formatters. |
| std::string ComputeReturnTypeString() const; |
| std::string ComputeParameterString() const; |
| |
| LazySymbol return_type_; |
| std::vector<LazySymbol> parameters_; |
| }; |
| |
| } // namespace zxdb |