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