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/*
* Copyright (C) 2016 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 COMPOUND_TYPE_H_
#define COMPOUND_TYPE_H_
#include "Reference.h"
#include "Scope.h"
#include <vector>
namespace android {
struct CompoundType : public Scope {
enum Style {
STYLE_STRUCT,
STYLE_UNION,
STYLE_SAFE_UNION,
};
CompoundType(Style style, const char* localName, const FQName& fullName,
const Location& location, Scope* parent);
Style style() const;
void setFields(std::vector<NamedReference<Type>*>* fields);
bool isCompoundType() const override;
bool deepCanCheckEquality(std::unordered_set<const Type*>* visited) const override;
std::string typeName() const override;
std::vector<const Reference<Type>*> getReferences() const override;
status_t validate() const override;
status_t validateUniqueNames() const;
status_t validateSubTypeNames() const;
std::string getCppType(StorageMode mode,
bool specifyNamespaces) const override;
std::string getJavaType(bool forInitializer) const override;
std::string getVtsType() const override;
void emitReaderWriter(
Formatter &out,
const std::string &name,
const std::string &parcelObj,
bool parcelObjIsPointer,
bool isReader,
ErrorMode mode) const override;
void emitReaderWriterEmbedded(
Formatter &out,
size_t depth,
const std::string &name,
const std::string &sanitizedName,
bool nameIsPointer,
const std::string &parcelObj,
bool parcelObjIsPointer,
bool isReader,
ErrorMode mode,
const std::string &parentName,
const std::string &offsetText) const override;
void emitResolveReferences(
Formatter &out,
const std::string &name,
bool nameIsPointer,
const std::string &parcelObj,
bool parcelObjIsPointer,
bool isReader,
ErrorMode mode) const override;
void emitResolveReferencesEmbedded(
Formatter &out,
size_t depth,
const std::string &name,
const std::string &sanitizedName,
bool nameIsPointer,
const std::string &parcelObj,
bool parcelObjIsPointer,
bool isReader,
ErrorMode mode,
const std::string &parentName,
const std::string &offsetText) const override;
void emitJavaReaderWriter(
Formatter &out,
const std::string &parcelObj,
const std::string &argName,
bool isReader) const override;
void emitJavaFieldInitializer(
Formatter &out, const std::string &fieldName) const override;
void emitJavaFieldDefaultInitialValue(
Formatter &out, const std::string &declaredFieldName) const override;
void emitJavaFieldReaderWriter(
Formatter &out,
size_t depth,
const std::string &parcelName,
const std::string &blobName,
const std::string &fieldName,
const std::string &offset,
bool isReader) const override;
void emitTypeDeclarations(Formatter& out) const override;
void emitTypeForwardDeclaration(Formatter& out) const override;
void emitPackageTypeDeclarations(Formatter& out) const override;
void emitPackageTypeHeaderDefinitions(Formatter& out) const override;
void emitPackageHwDeclarations(Formatter& out) const override;
void emitTypeDefinitions(Formatter& out, const std::string& prefix) const override;
void emitJavaTypeDeclarations(Formatter& out, bool atTopLevel) const override;
bool needsEmbeddedReadWrite() const override;
bool deepNeedsResolveReferences(std::unordered_set<const Type*>* visited) const override;
bool resultNeedsDeref() const override;
void emitVtsTypeDeclarations(Formatter& out) const override;
void emitVtsAttributeType(Formatter& out) const override;
bool deepIsJavaCompatible(std::unordered_set<const Type*>* visited) const override;
bool deepContainsPointer(std::unordered_set<const Type*>* visited) const override;
void getAlignmentAndSize(size_t *align, size_t *size) const override;
bool containsInterface() const;
private:
struct Layout {
size_t offset;
size_t align;
size_t size;
Layout() : offset(0), align(1), size(0) {}
static size_t getPad(size_t offset, size_t align);
};
struct CompoundLayout {
// Layout of this entire object including metadata.
// For struct/union, this is the same as innerStruct.
Layout overall;
// Layout of user-specified data
Layout innerStruct;
// Layout of discriminator for safe union (otherwise zero)
Layout discriminator;
};
Style mStyle;
std::vector<NamedReference<Type>*>* mFields;
void emitLayoutAsserts(Formatter& out, const Layout& localLayout,
const std::string& localLayoutName) const;
void emitInvalidSubTypeNamesError(const std::string& subTypeName,
const Location& location) const;
void emitSafeUnionTypeDefinitions(Formatter& out) const;
void emitSafeUnionTypeConstructors(Formatter& out) const;
void emitSafeUnionTypeDeclarations(Formatter& out) const;
std::unique_ptr<ScalarType> getUnionDiscriminatorType() const;
void emitSafeUnionUnknownDiscriminatorError(Formatter& out, const std::string& value,
bool fatal) const;
void emitSafeUnionCopyAndAssignDefinition(Formatter& out,
const std::string& parameterName,
bool isCopyConstructor,
bool usesMoveSemantics) const;
struct SafeUnionEnumElement {
std::string fieldName;
std::string fieldTypeName;
};
std::vector<SafeUnionEnumElement> getSafeUnionEnumElements(bool useCppTypeName) const;
CompoundLayout getCompoundAlignmentAndSize() const;
void emitPaddingZero(Formatter& out, size_t offset, size_t size) const;
void emitSafeUnionReaderWriterForInterfaces(
Formatter &out,
const std::string &name,
const std::string &parcelObj,
bool parcelObjIsPointer,
bool isReader,
ErrorMode mode) const;
void emitStructReaderWriter(
Formatter &out, const std::string &prefix, bool isReader) const;
void emitResolveReferenceDef(Formatter& out, const std::string& prefix, bool isReader) const;
DISALLOW_COPY_AND_ASSIGN(CompoundType);
};
} // namespace android
#endif // COMPOUND_TYPE_H_
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