/*
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* Copyright 2010, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_ // NOLINT
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#define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_
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#include <list>
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#include <string>
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/raw_ostream.h"
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#include "clang/AST/Decl.h"
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#include "slang_assert.h"
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#include "slang_rs_export_type.h"
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#include "slang_rs_exportable.h"
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namespace llvm {
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class StructType;
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}
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namespace slang {
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class RSContext;
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class RSExportFunc : public RSExportable {
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friend class RSContext;
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private:
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std::string mName;
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std::string mMangledName;
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bool mShouldMangle;
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RSExportRecordType *mParamPacketType;
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RSExportFunc(RSContext *Context, const llvm::StringRef &Name,
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const clang::FunctionDecl *FD)
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: RSExportable(Context, RSExportable::EX_FUNC, FD->getLocation()),
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mName(Name.data(), Name.size()),
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mMangledName(),
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mShouldMangle(false),
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mParamPacketType(nullptr) {
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mShouldMangle = Context->getMangleContext().shouldMangleDeclName(FD);
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if (mShouldMangle) {
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llvm::raw_string_ostream BufStm(mMangledName);
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Context->getMangleContext().mangleName(FD, BufStm);
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BufStm.flush();
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}
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}
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public:
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static RSExportFunc *Create(RSContext *Context,
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const clang::FunctionDecl *FD);
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typedef RSExportRecordType::const_field_iterator const_param_iterator;
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inline const_param_iterator params_begin() const {
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slangAssert((mParamPacketType != nullptr) &&
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"Get parameter from export function having no parameter!");
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return mParamPacketType->fields_begin();
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}
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inline const_param_iterator params_end() const {
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slangAssert((mParamPacketType != nullptr) &&
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"Get parameter from export function having no parameter!");
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return mParamPacketType->fields_end();
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}
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inline const std::string &getName(bool mangle = true) const {
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return (mShouldMangle && mangle) ? mMangledName : mName;
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}
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inline bool hasParam() const
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{ return (mParamPacketType && !mParamPacketType->getFields().empty()); }
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inline size_t getNumParameters() const
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{ return ((mParamPacketType) ? mParamPacketType->getFields().size() : 0); }
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inline const RSExportRecordType *getParamPacketType() const
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{ return mParamPacketType; }
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// Check whether the given ParamsPacket type (in LLVM type) is "size
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// equivalent" to the one obtained from getParamPacketType(). If the @Params
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// is nullptr, means there must be no any parameters.
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bool checkParameterPacketType(llvm::StructType *ParamTy) const;
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}; // RSExportFunc
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} // namespace slang
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#endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_FUNC_H_ NOLINT
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