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ClassFileOracle.hpp
1176 lines (1032 loc) · 53.5 KB
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ClassFileOracle.hpp
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/*******************************************************************************
* Copyright (c) 2001, 2020 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
/*
* ClassFileOracle.hpp
*/
#ifndef CLASSFILEORACLE_HPP_
#define CLASSFILEORACLE_HPP_
/* @ddr_namespace: default */
#include "j9comp.h"
#include "cfr.h"
#include "cfreader.h"
#include "ut_j9bcu.h"
#include "bcnames.h"
#include "BuildResult.hpp"
/*
* It is not guaranteed that slot1 value for constantpool index=0 entry will be zero.
* Therefore check the index first, if it is zero, return zero instead of returning the value in slot1.
*
* */
#define UTF8_INDEX_FROM_CLASS_INDEX(cp, cpIndex) ((U_16)((cpIndex == 0)? 0 : cp[cpIndex].slot1))
class BufferManager;
class ConstantPoolMap;
class ROMClassCreationContext;
class ClassFileOracle
{
public:
class VerificationTypeInfo;
class ArrayAnnotationElements;
class NestedAnnotation;
struct FieldInfo
{
bool isSynthetic;
bool hasGenericSignature;
U_16 genericSignatureIndex;
J9CfrAttributeRuntimeVisibleAnnotations *annotationsAttribute;
J9CfrAttributeRuntimeVisibleTypeAnnotations *typeAnnotationsAttribute;
bool isFieldContended;
};
struct StackMapFrameInfo
{
U_8 frameType;
U_16 offsetDelta;
U_16 localsCount;
U_16 stackItemsCount;
U_8 *localsTypeInfo;
U_8 *stackItemsTypeInfo;
};
struct LocalVariableInfo
{
J9CfrAttributeLocalVariableTable *localVariableTableAttribute;
J9CfrAttributeLocalVariableTypeTable *localVariableTypeTableAttribute;
};
struct BytecodeFixupEntry
{
U_8 type; /* One of ConstantPoolMap::EntryUseFlags constants. */
U_16 cpIndex;
U_32 codeIndex;
};
struct MethodInfo
{
bool hasFrameIteratorSkipAnnotation;
U_32 modifiers;
U_32 extendedModifiers;
U_8 sendSlotCount;
U_16 exceptionsThrownCount;
U_16 genericSignatureIndex;
U_16 stackMapFramesCount;
U_32 lineNumbersCount;
U_32 lineNumbersInfoCompressedSize;
U_32 localVariablesCount;
StackMapFrameInfo *stackMapFramesInfo;
LocalVariableInfo *localVariablesInfo;
U_8 *lineNumbersInfoCompressed;
J9CfrAttributeRuntimeVisibleAnnotations *annotationsAttribute;
J9CfrAttributeRuntimeVisibleParameterAnnotations *parameterAnnotationsAttribute;
J9CfrAttributeRuntimeVisibleTypeAnnotations *methodTypeAnnotationsAttribute;
J9CfrAttributeRuntimeVisibleTypeAnnotations *codeTypeAnnotationsAttribute;
J9CfrAttributeAnnotationDefault *defaultAnnotationAttribute;
U_32 byteCodeFixupCount;
J9CfrAttributeMethodParameters *methodParametersAttribute;
BytecodeFixupEntry *byteCodeFixupTable;
bool isByteCodeFixupDone;
};
struct RecordComponentInfo
{
bool hasGenericSignature;
U_16 nameIndex;
U_16 descriptorIndex;
U_16 genericSignatureIndex;
J9CfrAttributeRuntimeVisibleAnnotations *annotationsAttribute;
J9CfrAttributeRuntimeVisibleTypeAnnotations *typeAnnotationsAttribute;
};
/*
* Interfaces.
*/
struct ConstantPoolIndexVisitor
{
virtual void visitConstantPoolIndex(U_16 cpIndex) = 0;
};
struct ExceptionHandlerVisitor
{
virtual void visitExceptionHandler(U_32 startPC, U_32 endPC, U_32 handlerPC, U_16 exceptionClassCPIndex) = 0;
};
struct MethodParametersVisitor
{
virtual void visitMethodParameters(U_16 cpIndex, U_16 flag) = 0;
};
struct VerificationTypeInfoVisitor
{
virtual void visitStackMapObject(U_8 slotType, U_16 classCPIndex, U_16 classNameCPIndex) = 0;
virtual void visitStackMapNewObject(U_8 slotType, U_16 offset) = 0;
virtual void visitStackMapItem(U_8 slotType) = 0;
};
struct StackMapFrameVisitor
{
virtual void visitStackMapFrame(U_16 localsCount, U_16 stackItemsCount, U_16 offsetDelta, U_8 frameType, VerificationTypeInfo *typeInfo) = 0;
};
struct AnnotationElementVisitor
{
virtual void visitConstant(U_16 elementNameIndex, U_16 cpIndex, U_8 elementType) {}
virtual void visitEnum(U_16 elementNameIndex, U_16 typeNameIndex, U_16 constNameIndex) {}
virtual void visitClass(U_16 elementNameIndex, U_16 cpIndex) {}
virtual void visitArray(U_16 elementNameIndex, U_16 elementCount, ArrayAnnotationElements *arrayAnnotationElements) {}
virtual void visitNestedAnnotation(U_16 elementNameIndex, NestedAnnotation *nestedAnnotation) {}
};
struct AnnotationVisitor
{
virtual void visitParameter(U_16 numberOfAnnotations) = 0;
virtual void visitAnnotation(U_16 typeIndex, U_16 elementValuePairCount) = 0;
virtual void visitTypeAnnotation(U_8 targetType, J9CfrTypeAnnotationTargetInfo *targetInfo, J9CfrTypePath *typePath) = 0;
};
struct AnnotationsAttributeVisitor
{
virtual void visitAnnotationsAttribute(U_16 fieldOrMethodIndex, U_32 length, U_16 numberOfAnnotations) = 0;
virtual void visitDefaultAnnotationAttribute(U_16 fieldOrMethodIndex, U_32 length) = 0;
virtual void visitParameterAnnotationsAttribute(U_16 fieldOrMethodIndex, U_32 length, U_8 numberOfParameters) = 0;
virtual void visitTypeAnnotationsAttribute(U_16 fieldOrMethodIndex, U_32 length, U_16 numberOfAnnotations) = 0;
virtual void visitMalformedAnnotationsAttribute(U_32 rawDataLength, U_8 *rawAttributeData) = 0;
};
struct BootstrapMethodVisitor
{
virtual void visitBootstrapMethod(U_16 cpIndex, U_16 argumentCount) = 0;
virtual void visitBootstrapArgument(U_16 cpIndex) = 0;
};
/*
* Iteration artifacts.
*/
class VerificationTypeInfo
{
public:
VerificationTypeInfo(StackMapFrameInfo *stackMapFrameInfo, J9CfrClassFile *classFile) :
_stackMapFrameInfo(stackMapFrameInfo),
_classFile(classFile)
{
}
void localsDo(VerificationTypeInfoVisitor *visitor) { slotsDo(_stackMapFrameInfo->localsCount, _stackMapFrameInfo->localsTypeInfo, visitor); }
void stackItemsDo(VerificationTypeInfoVisitor *visitor) { slotsDo(_stackMapFrameInfo->stackItemsCount, _stackMapFrameInfo->stackItemsTypeInfo, visitor); }
private:
U_16 getParameter(U_8 *bytes) const { return (U_16(bytes[1]) << 8) | U_16(bytes[2]); }
void slotsDo(U_16 count, U_8 *bytes, VerificationTypeInfoVisitor *visitor)
{
for (U_16 i = 0; i < count; ++i) {
U_8 slotType = bytes[0];
switch (slotType) {
case CFR_STACKMAP_TYPE_OBJECT: {
U_16 cpIndex = getParameter(bytes);
U_16 nameIndex = (U_16) _classFile->constantPool[cpIndex].slot1;
visitor->visitStackMapObject(slotType, cpIndex, nameIndex);
bytes += 3;
break;
}
case CFR_STACKMAP_TYPE_NEW_OBJECT:
visitor->visitStackMapNewObject(slotType, getParameter(bytes));
bytes += 3;
break;
default:
visitor->visitStackMapItem(slotType);
bytes += 1;
break;
}
}
}
StackMapFrameInfo *_stackMapFrameInfo;
J9CfrClassFile *_classFile;
};
class ArrayAnnotationElements
{
public:
ArrayAnnotationElements(ClassFileOracle *classFileOracle, J9CfrAnnotationElementArray *annotationElementArray) :
_classFileOracle(classFileOracle),
_annotationElementArray(annotationElementArray)
{
}
void elementsDo(AnnotationElementVisitor *annotationElementVisitor)
{
J9CfrAnnotationElement **endAnnotationElements = _annotationElementArray->values + _annotationElementArray->numberOfValues;
for (J9CfrAnnotationElement **annotationElement = _annotationElementArray->values; annotationElement != endAnnotationElements; ++annotationElement) {
_classFileOracle->annotationElementDo(annotationElementVisitor, 0, *annotationElement);
}
}
private:
ClassFileOracle *_classFileOracle;
J9CfrAnnotationElementArray *_annotationElementArray;
};
class NestedAnnotation
{
public:
NestedAnnotation(ClassFileOracle *classFileOracle, J9CfrAnnotation *annotation) :
_classFileOracle(classFileOracle),
_annotation(annotation)
{
}
void annotationDo(AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor, AnnotationElementVisitor *annotationAnnotationVisitor)
{
if (NULL != annotationVisitor) {
annotationVisitor->visitAnnotation(_annotation->typeIndex, _annotation->numberOfElementValuePairs);
}
if (NULL != annotationElementVisitor) {
_classFileOracle->annotationElementsDo(annotationElementVisitor, _annotation->elementValuePairs, _annotation->numberOfElementValuePairs);
}
if (NULL != annotationAnnotationVisitor) {
_classFileOracle->annotationElementsDo(annotationAnnotationVisitor, _annotation->elementValuePairs, _annotation->numberOfElementValuePairs);
}
}
private:
ClassFileOracle *_classFileOracle;
J9CfrAnnotation *_annotation;
};
class AnnotationAnnotationVisitor : public AnnotationElementVisitor
{
public:
AnnotationAnnotationVisitor(AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor) :
_annotationVisitor(annotationVisitor),
_annotationElementVisitor(annotationElementVisitor)
{
}
void visitArray(U_16 elementNameIndex, U_16 elementCount, ArrayAnnotationElements *arrayAnnotationElements)
{
arrayAnnotationElements->elementsDo(this);
}
void visitNestedAnnotation(U_16 elementNameIndex, NestedAnnotation *nestedAnnotation)
{
nestedAnnotation->annotationDo(_annotationVisitor, _annotationElementVisitor, this);
}
private:
AnnotationVisitor *_annotationVisitor;
AnnotationElementVisitor *_annotationElementVisitor;
};
/*
* Iterators.
*/
class FieldIterator
{
public:
FieldIterator(FieldInfo *fieldsInfo, J9CfrClassFile *classFile) :
_fieldsInfo(fieldsInfo),
_classFile(classFile),
_fields(classFile->fields),
_index(0)
{
}
U_16 getNameIndex() const { return _fields[_index].nameIndex; }
U_16 getDescriptorIndex() const { return _fields[_index].descriptorIndex; }
U_8 getFirstByteOfDescriptor() const { return _classFile->constantPool[getDescriptorIndex()].bytes[0]; }
U_16 getAccessFlags() const { return _fields[_index].accessFlags; }
U_16 getFieldIndex() const {return _index; }
bool isConstant() const { return (getAccessFlags() & CFR_ACC_STATIC) && (NULL != _fields[_index].constantValueAttribute); }
bool isConstantInteger() const { return isConstant() && getConstantValueTag() == CFR_CONSTANT_Integer; }
bool isConstantDouble() const { return isConstant() && getConstantValueTag() == CFR_CONSTANT_Double; }
bool isConstantFloat() const { return isConstant() && getConstantValueTag() == CFR_CONSTANT_Float; }
bool isConstantLong() const { return isConstant() && getConstantValueTag() == CFR_CONSTANT_Long; }
bool isConstantString() const { return isConstant() && getConstantValueTag() == CFR_CONSTANT_String; }
bool isSynthetic() const { return _fieldsInfo[_index].isSynthetic; }
bool hasGenericSignature() const { return _fieldsInfo[_index].hasGenericSignature; }
U_16 getGenericSignatureIndex() const { return _fieldsInfo[_index].genericSignatureIndex; }
bool hasAnnotation() const { return _fieldsInfo[_index].annotationsAttribute != NULL;}
bool hasTypeAnnotation() const { return _fieldsInfo[_index].typeAnnotationsAttribute != NULL;}
bool isFieldContended() const { return _fieldsInfo[_index].isFieldContended; }
U_32 getConstantValueSlot1() const { return _classFile->constantPool[getConstantValueConstantPoolIndex()].slot1; }
U_32 getConstantValueSlot2() const { return _classFile->constantPool[getConstantValueConstantPoolIndex()].slot2; }
U_16 getConstantValueConstantPoolIndex() const { return _fields[_index].constantValueAttribute->constantValueIndex; }
bool isNotDone() const { return _index < _classFile->fieldsCount; }
void next() { _index++; }
private:
U_8 getConstantValueTag() const { return _classFile->constantPool[getConstantValueConstantPoolIndex()].tag; }
FieldInfo *_fieldsInfo;
J9CfrClassFile *_classFile;
J9CfrField *_fields;
U_16 _index;
};
class LocalVariablesIterator
{
public:
LocalVariablesIterator(U_16 count, LocalVariableInfo *localVariablesInfo) :
_localVariableTableIndex(0),
_index(0),
_count(count),
_localVariablesInfo(localVariablesInfo),
_localVariableTable(NULL) // TODO why do we need this?
{
findNextValidEntry();
}
U_16 getNameIndex() const { return _localVariableTable[_localVariableTableIndex].nameIndex; }
U_16 getDescriptorIndex() const { return _localVariableTable[_localVariableTableIndex].descriptorIndex; }
U_16 getGenericSignatureIndex();
U_16 getIndex() const { return _index; } /* Equivalent to _localVariableTable[_localVariableTableIndex].index */
U_32 getStartPC() const { return _localVariableTable[_localVariableTableIndex].startPC; }
U_32 getLength() const { return _localVariableTable[_localVariableTableIndex].length; }
bool hasGenericSignature();
bool isNotDone() const { return _index < _count; }
void next()
{
++_localVariableTableIndex;
findNextValidEntry();
}
private:
void findNextValidEntry()
{
/*
* _localVariableTable is a cached pointer to _localVariablesInfo[_index].localVariableTableAttribute->localVariableTable.
* The LocalVariableInfo array is indexed by the "local variable index" (a.k.a. slot number).
* An entry is valid if:
* - there is a localVariableTable for the current slot (_index) and
* - the entry's index matches the current slot number (_index)
* The algorithm below checks if the current entry is valid; if not, the cached pointer is cleared and the search begins.
* When a valid entry is found, the pointer to the corresponding localVariableTable is cached to allow easy access from the
* getter methods above.
*/
if ((NULL == _localVariableTable) /* Is the cached pointer invalid? */
|| (_localVariableTableIndex >= _localVariablesInfo[_index].localVariableTableAttribute->localVariableTableLength) /* Have we walked off the end of the current localVariableTable? */
|| (_index != _localVariableTable[_localVariableTableIndex].index)) { /* Is the _index different from the current entry's index? */
_localVariableTable = NULL;
while ((NULL == _localVariableTable) && isNotDone()) { /* Keep looking until a valid entry is found or we run out of entries */
if ((NULL == _localVariablesInfo[_index].localVariableTableAttribute)
|| (_localVariableTableIndex >= _localVariablesInfo[_index].localVariableTableAttribute->localVariableTableLength)) {
/* If there is no localVariableTable or we've exhausted the entries for the current slot, advance to the next slot */
++_index;
_localVariableTableIndex = 0;
} else if (_index != _localVariablesInfo[_index].localVariableTableAttribute->localVariableTable[_localVariableTableIndex].index) {
/* If the current entry doesn't match the slot number, advance to the next entry */
++_localVariableTableIndex;
} else {
/* A valid entry has been found. Cache the localVariableTable pointer and exit the loop. */
_localVariableTable = _localVariablesInfo[_index].localVariableTableAttribute->localVariableTable;
}
}
}
}
U_16 _localVariableTableIndex;
U_16 _index;
U_16 _count;
LocalVariableInfo *_localVariablesInfo;
J9CfrLocalVariableTableEntry *_localVariableTable;
};
class MethodIterator
{
public:
MethodIterator(MethodInfo *methodsInfo, J9CfrClassFile *classFile) :
_methodIndex(0),
_methodsInfo(methodsInfo),
_classFile(classFile)
{
}
bool isEmpty() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccEmptyMethod); }
bool isForwarder() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccForwarderMethod); }
bool isGetter() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccGetterMethod); }
bool isVirtual() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccMethodVTable); }
bool isSynthetic() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccSynthetic); }
bool isStatic() const { return 0 != (_classFile->methods[_methodIndex].accessFlags & CFR_ACC_STATIC); }
bool isAbstract() const { return 0 != (_classFile->methods[_methodIndex].accessFlags & CFR_ACC_ABSTRACT); }
bool isNative() const { return 0 != (_classFile->methods[_methodIndex].accessFlags & CFR_ACC_NATIVE); }
bool isPrivate() const { return 0 != (_classFile->methods[_methodIndex].accessFlags & CFR_ACC_PRIVATE); }
bool isByteCodeFixupDone() const { return _methodsInfo[_methodIndex].isByteCodeFixupDone; }
void setByteCodeFixupDone() { _methodsInfo[_methodIndex].isByteCodeFixupDone = true; }
bool hasStackMap() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccMethodHasStackMap); }
bool hasBackwardBranches() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccMethodHasBackwardBranches); }
bool hasGenericSignature() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccMethodHasGenericSignature); }
bool hasFrameIteratorSkipAnnotation() const { return _methodsInfo[_methodIndex].hasFrameIteratorSkipAnnotation; }
bool hasAnnotationsData() const { return NULL != _methodsInfo[_methodIndex].annotationsAttribute; }
bool hasParameterAnnotations() const { return NULL != _methodsInfo[_methodIndex].parameterAnnotationsAttribute; }
bool hasMethodTypeAnnotations() const { return NULL != _methodsInfo[_methodIndex].methodTypeAnnotationsAttribute; }
bool hasCodeTypeAnnotations() const { return NULL != _methodsInfo[_methodIndex].codeTypeAnnotationsAttribute; }
bool hasDefaultAnnotation() const { return NULL != _methodsInfo[_methodIndex].defaultAnnotationAttribute; }
bool hasMethodParameters() const { return 0 != (_methodsInfo[_methodIndex].modifiers & J9AccMethodHasMethodParameters); }
U_8 getMethodParametersCount() const { return (NULL == _classFile->methods[_methodIndex].methodParametersAttribute) ? 0 : _classFile->methods[_methodIndex].methodParametersAttribute->numberOfMethodParameters; }
U_32 getModifiers() const { return _methodsInfo[_methodIndex].modifiers; }
U_32 getExtendedModifiers() const { return _methodsInfo[_methodIndex].extendedModifiers; }
U_16 getAccessFlags() const { return _classFile->methods[_methodIndex].accessFlags; }
U_8 getSendSlotCount() const { return _methodsInfo[_methodIndex].sendSlotCount; }
U_16 getMaxLocals() const { return (NULL == _classFile->methods[_methodIndex].codeAttribute) ? 0 : _classFile->methods[_methodIndex].codeAttribute->maxLocals; }
U_16 getNameIndex() const { return _classFile->methods[_methodIndex].nameIndex; }
U_16 getDescriptorIndex() const { return _classFile->methods[_methodIndex].descriptorIndex; }
U_16 getIndex() const { return _methodIndex; }
U_16 getMaxStack() const { return (NULL == _classFile->methods[_methodIndex].codeAttribute) ? 0 : _classFile->methods[_methodIndex].codeAttribute->maxStack; }
U_16 getStackMapFramesCount() const { return _methodsInfo[_methodIndex].stackMapFramesCount; }
U_16 getExceptionHandlersCount() const { return (NULL == _classFile->methods[_methodIndex].codeAttribute) ? 0 : _classFile->methods[_methodIndex].codeAttribute->exceptionTableLength; }
U_16 getExceptionsThrownCount() const { return _methodsInfo[_methodIndex].exceptionsThrownCount; }
U_16 getGenericSignatureIndex() const { return _methodsInfo[_methodIndex].genericSignatureIndex; }
U_8 *getCode() const { return (NULL == _classFile->methods[_methodIndex].codeAttribute) ? 0 : _classFile->methods[_methodIndex].codeAttribute->code; }
U_32 getCodeLength() const { return (NULL == _classFile->methods[_methodIndex].codeAttribute) ? 0 : _classFile->methods[_methodIndex].codeAttribute->codeLength; }
U_32 getLineNumbersCount() const { return _methodsInfo[_methodIndex].lineNumbersCount; }
U_32 getLineNumbersInfoCompressedSize() const { return _methodsInfo[_methodIndex].lineNumbersInfoCompressedSize; }
U_8 *getLineNumbersInfoCompressed() const { return _methodsInfo[_methodIndex].lineNumbersInfoCompressed; }
U_32 getLocalVariablesCount() const { return _methodsInfo[_methodIndex].localVariablesCount; }
U_32 getByteCodeFixupCount() const { return _methodsInfo[_methodIndex].byteCodeFixupCount; }
ClassFileOracle::BytecodeFixupEntry * getByteCodeFixupTable() const { return _methodsInfo[_methodIndex].byteCodeFixupTable; }
void exceptionsThrownDo(ConstantPoolIndexVisitor *visitor)
{ // TODO refactor MethodInfo and MethodIterator to make this usable by ClassFileOracle::walkMethodThrownExceptions
J9CfrAttributeExceptions *exceptions = _classFile->methods[_methodIndex].exceptionsAttribute;
if (NULL != exceptions) {
U_16 *end = exceptions->exceptionIndexTable + exceptions->numberOfExceptions;
for (U_16 *exceptionIndex = exceptions->exceptionIndexTable; exceptionIndex != end; ++exceptionIndex) {
if (0 != *exceptionIndex) {
/* Each exception is a constantClass, use slot1 to get at the underlying UTF8 */
visitor->visitConstantPoolIndex(U_16(_classFile->constantPool[ *exceptionIndex ].slot1));
}
}
}
}
void exceptionHandlersDo(ExceptionHandlerVisitor *visitor)
{
if (NULL != _classFile->methods[_methodIndex].codeAttribute) {
J9CfrExceptionTableEntry* end = _classFile->methods[_methodIndex].codeAttribute->exceptionTable + getExceptionHandlersCount();
for (J9CfrExceptionTableEntry* entry = _classFile->methods[_methodIndex].codeAttribute->exceptionTable; entry != end; ++entry) {
visitor->visitExceptionHandler(entry->startPC, entry->endPC, entry->handlerPC, entry->catchType);
}
}
}
void methodParametersDo(MethodParametersVisitor *visitor)
{
J9CfrAttributeMethodParameters *methodParams = _classFile->methods[_methodIndex].methodParametersAttribute;
if (NULL != methodParams) {
U_8 methodParamsCount = methodParams->numberOfMethodParameters;
U_16 * methodParametersIndexTable = methodParams->methodParametersIndexTable;
for (int i = 0; i < methodParamsCount; i++) {
visitor->visitMethodParameters(methodParametersIndexTable[i], methodParams->flags[i]);
}
}
}
void stackMapFramesDo(StackMapFrameVisitor *visitor)
{
StackMapFrameInfo *end = _methodsInfo[_methodIndex].stackMapFramesInfo + _methodsInfo[_methodIndex].stackMapFramesCount;
for (StackMapFrameInfo *info = _methodsInfo[_methodIndex].stackMapFramesInfo; info != end; ++info) {
VerificationTypeInfo typeInfo(info, _classFile);
visitor->visitStackMapFrame(info->localsCount, info->stackItemsCount, info->offsetDelta, info->frameType, &typeInfo);
}
}
LocalVariablesIterator getLocalVariablesIterator() { return LocalVariablesIterator((NULL == _methodsInfo[_methodIndex].localVariablesInfo) ? 0 : getMaxLocals(), _methodsInfo[_methodIndex].localVariablesInfo); }
bool isNotDone() const { return _methodIndex < _classFile->methodsCount; }
void next() { _methodIndex++; }
private:
U_16 _methodIndex;
MethodInfo *_methodsInfo;
J9CfrClassFile *_classFile;
};
class UTF8Iterator
{
public:
UTF8Iterator(J9CfrClassFile *classFile) :
_classFile(classFile),
_cpIndex(classFile->firstUTF8CPIndex),
_entry(&classFile->constantPool[_cpIndex])
{
}
U_16 getCPIndex() const { return _cpIndex; }
U_16 getUTF8Length() const { return U_16(_entry->slot1); }
U_8 *getUTF8Data() const { return _entry->bytes; }
bool isNotDone() const { return 0 != _cpIndex; }
void next()
{
_cpIndex = _entry->nextCPIndex;
_entry = &_classFile->constantPool[_cpIndex];
}
private:
J9CfrClassFile *_classFile;
U_16 _cpIndex;
J9CfrConstantPoolInfo *_entry;
};
class NameAndTypeIterator
{
public:
NameAndTypeIterator(J9CfrClassFile *classFile) :
_classFile(classFile),
_cpIndex(classFile->firstNATCPIndex),
_entry(&classFile->constantPool[_cpIndex])
{
}
U_16 getCPIndex() const { return _cpIndex; }
U_16 getNameIndex() const { return U_16(_entry->slot1); }
U_16 getDescriptorIndex() const { return U_16(_entry->slot2); }
bool isNotDone() const { return 0 != _cpIndex; }
void next()
{
_cpIndex = _entry->nextCPIndex;
_entry = &_classFile->constantPool[_cpIndex];
}
private:
J9CfrClassFile *_classFile;
U_16 _cpIndex;
J9CfrConstantPoolInfo *_entry;
};
class RecordComponentIterator
{
public:
RecordComponentIterator(RecordComponentInfo *recordComponentsInfo, U_16 recordComponentCount) :
_recordComponentsInfo(recordComponentsInfo),
_recordComponentCount(recordComponentCount),
_index(0)
{
}
U_16 getNameIndex() const { return _recordComponentsInfo[_index].nameIndex; }
U_16 getDescriptorIndex() const { return _recordComponentsInfo[_index].descriptorIndex; }
U_16 getGenericSignatureIndex() const { return _recordComponentsInfo[_index].genericSignatureIndex; }
U_16 getRecordComponentIndex() const { return _index; }
bool hasGenericSignature() const { return _recordComponentsInfo[_index].hasGenericSignature; }
bool hasAnnotation() const { return _recordComponentsInfo[_index].annotationsAttribute != NULL; }
bool hasTypeAnnotation() const { return _recordComponentsInfo[_index].typeAnnotationsAttribute != NULL; }
bool isNotDone() const { return _index < _recordComponentCount; }
void next() { _index++; }
private:
RecordComponentInfo *_recordComponentsInfo;
U_16 _recordComponentCount;
U_16 _index;
};
/*
* Iteration functions.
*/
void annotationElementDo(AnnotationElementVisitor *annotationElementVisitor, U_16 elementNameIndex, J9CfrAnnotationElement *annotationElement)
{
switch (annotationElement->tag) {
case 'e':
annotationElementVisitor->visitEnum(elementNameIndex,
((J9CfrAnnotationElementEnum *)annotationElement)->typeNameIndex,
((J9CfrAnnotationElementEnum *)annotationElement)->constNameIndex);
break;
case 'c':
annotationElementVisitor->visitClass(elementNameIndex,
((J9CfrAnnotationElementClass *)annotationElement)->classInfoIndex);
break;
case '@': {
NestedAnnotation nestedAnnotation(this, &(((J9CfrAnnotationElementAnnotation *)annotationElement)->annotationValue));
annotationElementVisitor->visitNestedAnnotation(elementNameIndex,
&nestedAnnotation);
break;
}
case '[': {
ArrayAnnotationElements arrayAnnotationElements(this, (J9CfrAnnotationElementArray *)annotationElement);
annotationElementVisitor->visitArray(elementNameIndex,
((J9CfrAnnotationElementArray *)annotationElement)->numberOfValues,
&arrayAnnotationElements);
break;
}
default:
annotationElementVisitor->visitConstant(elementNameIndex, ((J9CfrAnnotationElementPrimitive *)annotationElement)->constValueIndex, annotationElement->tag);
break;
}
}
void annotationElementsDo(AnnotationElementVisitor *annotationElementVisitor, J9CfrAnnotationElementPair *elementValuePairs, U_16 elementValuePairCount)
{
J9CfrAnnotationElementPair *endElementValuePairs = elementValuePairs + elementValuePairCount;
for (J9CfrAnnotationElementPair *elementValuePair = elementValuePairs; elementValuePair != endElementValuePairs; ++elementValuePair) {
annotationElementDo(annotationElementVisitor, elementValuePair->elementNameIndex, elementValuePair->value);
}
}
void defaultAnnotationDo(U_16 methodIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
if (NULL != _methodsInfo[methodIndex].defaultAnnotationAttribute) {
if (NULL != annotationsAttributeVisitor) {
annotationsAttributeVisitor->visitDefaultAnnotationAttribute(methodIndex, _methodsInfo[methodIndex].defaultAnnotationAttribute->length);
}
if (NULL != annotationElementVisitor) {
annotationElementDo(annotationElementVisitor, _classFile->methods[methodIndex].nameIndex, _methodsInfo[methodIndex].defaultAnnotationAttribute->defaultValue);
}
}
}
VMINLINE void
annotationsDo(U_16 index, J9CfrAttributeRuntimeVisibleAnnotations *annotationsAttribute, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
if (NULL != annotationsAttribute) {
if ((annotationsAttribute->rawDataLength > 0) && (NULL != annotationsAttributeVisitor)) { /* Detected bad attribute: this will fail when reparsed by Java code. */
annotationsAttributeVisitor->visitMalformedAnnotationsAttribute(annotationsAttribute->rawDataLength, annotationsAttribute->rawAttributeData);
} else {
if (NULL != annotationsAttributeVisitor) {
annotationsAttributeVisitor->visitAnnotationsAttribute(index, annotationsAttribute->length, annotationsAttribute->numberOfAnnotations);
}
if ((NULL != annotationVisitor) || (NULL != annotationElementVisitor)) {
J9CfrAnnotation *endAnnotations = annotationsAttribute->annotations + annotationsAttribute->numberOfAnnotations;
for (J9CfrAnnotation *annotation = annotationsAttribute->annotations; annotation != endAnnotations; ++annotation) {
if (NULL != annotationVisitor) {
annotationVisitor->visitAnnotation(annotation->typeIndex, annotation->numberOfElementValuePairs);
}
if (NULL != annotationElementVisitor) {
annotationElementsDo(annotationElementVisitor, annotation->elementValuePairs, annotation->numberOfElementValuePairs);
}
}
}
}
}
}
void classAnnotationsDo(AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
annotationsDo(0, _annotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void classTypeAnnotationsDo(AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
typeAnnotationsDo(0, _typeAnnotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void fieldAnnotationDo(U_16 fieldIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
annotationsDo(fieldIndex, _fieldsInfo[fieldIndex].annotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void fieldTypeAnnotationDo(U_16 fieldIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
typeAnnotationsDo(fieldIndex, _fieldsInfo[fieldIndex].typeAnnotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void methodAnnotationDo(U_16 methodIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
annotationsDo(methodIndex, _methodsInfo[methodIndex].annotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void methodTypeAnnotationDo(U_16 methodIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
typeAnnotationsDo(methodIndex, _methodsInfo[methodIndex].methodTypeAnnotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void methodCodeTypeAnnotationDo(U_16 methodIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
typeAnnotationsDo(methodIndex, _methodsInfo[methodIndex].codeTypeAnnotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void recordComponentAnnotationDo(U_16 recordComponentIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor) {
annotationsDo(recordComponentIndex, _recordComponentsInfo[recordComponentIndex].annotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void recordComponentTypeAnnotationDo(U_16 recordComponentIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor) {
typeAnnotationsDo(recordComponentIndex, _recordComponentsInfo[recordComponentIndex].typeAnnotationsAttribute, annotationsAttributeVisitor, annotationVisitor, annotationElementVisitor);
}
void parameterAnnotationsDo(U_16 methodIndex, AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
J9CfrAttributeRuntimeVisibleParameterAnnotations *parameterAnnotationsAttribute = _methodsInfo[methodIndex].parameterAnnotationsAttribute;
if (NULL != parameterAnnotationsAttribute) {
if (parameterAnnotationsAttribute->rawDataLength > 0) { /* Detected bad attribute: this will fail when reparsed by Java code. */
annotationsAttributeVisitor->visitMalformedAnnotationsAttribute(parameterAnnotationsAttribute->rawDataLength,
parameterAnnotationsAttribute->rawAttributeData);
} else {
if (NULL != annotationsAttributeVisitor) {
annotationsAttributeVisitor->visitParameterAnnotationsAttribute(methodIndex, parameterAnnotationsAttribute->length, parameterAnnotationsAttribute->numberOfParameters);
}
U_8 parameterIndex = 0;
J9CfrParameterAnnotations *endParameterAnnotations = parameterAnnotationsAttribute->parameterAnnotations + parameterAnnotationsAttribute->numberOfParameters;
for (J9CfrParameterAnnotations *parameterAnnotations = parameterAnnotationsAttribute->parameterAnnotations; parameterAnnotations != endParameterAnnotations; ++parameterAnnotations, ++parameterIndex) {
if (NULL != annotationVisitor) {
annotationVisitor->visitParameter(parameterAnnotations->numberOfAnnotations);
}
if ((NULL != annotationVisitor) || (NULL != annotationElementVisitor)) {
J9CfrAnnotation *endAnnotations = parameterAnnotations->annotations + parameterAnnotations->numberOfAnnotations;
for (J9CfrAnnotation *annotation = parameterAnnotations->annotations; annotation != endAnnotations; ++annotation) {
if (NULL != annotationVisitor) {
annotationVisitor->visitAnnotation(annotation->typeIndex, annotation->numberOfElementValuePairs);
}
if (NULL != annotationElementVisitor) {
annotationElementsDo(annotationElementVisitor, annotation->elementValuePairs, annotation->numberOfElementValuePairs);
}
}
}
}
}
}
}
void typeAnnotationsDo(U_16 index, J9CfrAttributeRuntimeVisibleTypeAnnotations *typeAnnotationsAttribute,
AnnotationsAttributeVisitor *annotationsAttributeVisitor, AnnotationVisitor *annotationVisitor, AnnotationElementVisitor *annotationElementVisitor)
{
Trc_BCU_Assert_NotNull(typeAnnotationsAttribute);
if (typeAnnotationsAttribute->rawDataLength > 0) { /* Detected bad attribute: this will fail when reparsed by Java code. */
annotationsAttributeVisitor->visitMalformedAnnotationsAttribute(typeAnnotationsAttribute->rawDataLength,
typeAnnotationsAttribute->rawAttributeData);
} else {
if (NULL != annotationsAttributeVisitor) {
annotationsAttributeVisitor->visitTypeAnnotationsAttribute(index, typeAnnotationsAttribute->length, typeAnnotationsAttribute->numberOfAnnotations);
}
if ((NULL != annotationVisitor) || (NULL != annotationElementVisitor)) {
for (U_16 typeAnnotationIndex = 0; typeAnnotationIndex < typeAnnotationsAttribute->numberOfAnnotations; ++typeAnnotationIndex) {
J9CfrTypeAnnotation *typeAnnotation = &(typeAnnotationsAttribute->typeAnnotations[typeAnnotationIndex]);
if (NULL != annotationVisitor) {
annotationVisitor->visitTypeAnnotation(typeAnnotation->targetType, &(typeAnnotation->targetInfo), &(typeAnnotation->typePath));
annotationVisitor->visitAnnotation(typeAnnotation->annotation.typeIndex, typeAnnotation->annotation.numberOfElementValuePairs);
}
if (NULL != annotationElementVisitor) {
annotationElementsDo(annotationElementVisitor, typeAnnotation->annotation.elementValuePairs, typeAnnotation->annotation.numberOfElementValuePairs);
}
}
}
}
}
/*
* Iterate over the constant pool indices corresponding to interface names (UTF8s).
*/
void interfacesDo(ConstantPoolIndexVisitor *visitor)
{
U_16 *end = _classFile->interfaces + getInterfacesCount();
for (U_16 *interface = _classFile->interfaces; interface != end; ++interface) {
/* Each interface is a constantClass, use slot1 to get at the underlying UTF8 */
visitor->visitConstantPoolIndex(U_16(_classFile->constantPool[ *interface ].slot1));
}
}
/*
* Iterate over the constant pool indices corresponding to inner class names (UTF8s).
*/
void innerClassesDo(ConstantPoolIndexVisitor *visitor)
{
if (NULL != _innerClasses) {
J9CfrClassesEntry *end = _innerClasses->classes + _innerClasses->numberOfClasses;
U_16 thisClassUTF8 = UTF8_INDEX_FROM_CLASS_INDEX(_classFile->constantPool, _classFile->thisClass);
for (J9CfrClassesEntry *entry = _innerClasses->classes; entry != end; ++entry) {
U_16 outerClassUTF8 = UTF8_INDEX_FROM_CLASS_INDEX(_classFile->constantPool, entry->outerClassInfoIndex);
/* In some cases, there might be two entries for the same class.
* But the UTF8 classname entry will be only one.
* Therefore comparing the UTF8 will find the matches, while comparing the class entries will not
*/
if (thisClassUTF8 == outerClassUTF8) {
/* Member class - use slot1 to get at the underlying UTF8. */
U_16 innerClassUTF8 = UTF8_INDEX_FROM_CLASS_INDEX(_classFile->constantPool, entry->innerClassInfoIndex);
visitor->visitConstantPoolIndex(innerClassUTF8);
}
}
}
}
#if JAVA_SPEC_VERSION >= 11
void nestMembersDo(ConstantPoolIndexVisitor *visitor)
{
if (NULL != _nestMembers) {
U_16 nestMembersCount = getNestMembersCount();
for (U_16 i = 0; i < nestMembersCount; i++) {
U_16 nestMemberUTF8 = UTF8_INDEX_FROM_CLASS_INDEX(_classFile->constantPool, _nestMembers->classes[i]);
visitor->visitConstantPoolIndex(nestMemberUTF8);
}
}
}
#endif /* JAVA_SPEC_VERSION >= 11 */
/*
* Iterate over the bootstrap methods and their arguments.
*/
void bootstrapMethodsDo(BootstrapMethodVisitor *visitor)
{
if (NULL != _bootstrapMethodsAttribute) {
J9CfrBootstrapMethod *end = _bootstrapMethodsAttribute->bootstrapMethods + _bootstrapMethodsAttribute->numberOfBootstrapMethods;
for (J9CfrBootstrapMethod *bsm = _bootstrapMethodsAttribute->bootstrapMethods; bsm != end; ++bsm) {
U_16 *endArguments = bsm->bootstrapArguments + bsm->numberOfBootstrapArguments;
visitor->visitBootstrapMethod(bsm->bootstrapMethodIndex, bsm->numberOfBootstrapArguments);
for (U_16 *argument = bsm->bootstrapArguments; argument != endArguments; ++argument) {
visitor->visitBootstrapArgument(*argument);
}
}
}
}
UTF8Iterator getUTF8Iterator() const { return UTF8Iterator(_classFile); }
NameAndTypeIterator getNameAndTypeIterator() const { return NameAndTypeIterator(_classFile); }
FieldIterator getFieldIterator() { return FieldIterator(_fieldsInfo, _classFile); }
MethodIterator getMethodIterator() { return MethodIterator(_methodsInfo, _classFile); }
RecordComponentIterator getRecordComponentIterator() { return RecordComponentIterator(_recordComponentsInfo, _recordComponentCount); }
ClassFileOracle(BufferManager *bufferManager, J9CfrClassFile *classFile, ConstantPoolMap *constantPoolMap, U_8 * verifyExcludeAttribute, U_8 * romBuilderClassFileBuffer, ROMClassCreationContext *context);
~ClassFileOracle();
bool isOK() const { return OK == _buildResult; }
BuildResult getBuildResult() const { return _buildResult; }
/*
* Query methods.
*/
U_32 getClassFileSize() const { return _classFile->classFileSize; }
U_16 getAccessFlags() const { return _classFile->accessFlags; }
U_16 getSingleScalarStaticCount() const { return _singleScalarStaticCount; }
U_16 getInterfacesCount() const { return _classFile->interfacesCount; }
U_16 getMethodsCount() const { return _classFile->methodsCount; }
U_16 getFieldsCount() const { return _classFile->fieldsCount; }
U_16 getConstantPoolCount() const { return _classFile->constantPoolCount; }
U_16 getObjectStaticCount() const { return _objectStaticCount; }
U_16 getDoubleScalarStaticCount() const { return _doubleScalarStaticCount; }
U_16 getMemberAccessFlags() const { return _memberAccessFlags; }
U_16 getInnerClassCount() const { return _innerClassCount; }
#if JAVA_SPEC_VERSION >= 11
U_16 getNestMembersCount() const { return _nestMembersCount; }
U_16 getNestHostNameIndex() const { return _nestHost; }
#endif /* JAVA_SPEC_VERSION >= 11 */
U_16 getMajorVersion() const { return _classFile->majorVersion; }
U_16 getMinorVersion() const { return _classFile->minorVersion; }
U_32 getMaxBranchCount() const { return _maxBranchCount; }
U_16 getClassNameIndex() const { return U_16(_classFile->constantPool[_classFile->thisClass].slot1); }
U_16 getSuperClassNameIndex() const { return U_16(_classFile->constantPool[_classFile->superClass].slot1); }
U_16 getOuterClassNameIndex() const { return _outerClassNameIndex; }
U_16 getSimpleNameIndex() const { return _simpleNameIndex; }
U_16 getEnclosingMethodClassRefIndex() const { return hasEnclosingMethod() ? _enclosingMethod->classIndex : 0; }
U_16 getEnclosingMethodNameAndSignatureIndex() const { return hasEnclosingMethod() ? _enclosingMethod->methodIndex : 0; }
U_16 getGenericSignatureIndex() const { return hasGenericSignature() ? _genericSignature->signatureIndex : 0; }
U_16 getUTF8Length(U_16 cpIndex) const { return U_16(_classFile->constantPool[cpIndex].slot1); }
U_8 *getUTF8Data(U_16 cpIndex) const { return _classFile->constantPool[cpIndex].bytes; }
U_16 getNameAndSignatureNameUTF8Length(U_16 cpIndex) const { return getUTF8Length(U_16(_classFile->constantPool[cpIndex].slot1)); }
U_8 *getNameAndSignatureNameUTF8Data(U_16 cpIndex) const { return getUTF8Data(U_16(_classFile->constantPool[cpIndex].slot1)); }
U_16 getNameAndSignatureSignatureUTF8Length(U_16 cpIndex) const { return getUTF8Length(U_16(_classFile->constantPool[cpIndex].slot2)); }
U_8 *getNameAndSignatureSignatureUTF8Data(U_16 cpIndex) const { return getUTF8Data(U_16(_classFile->constantPool[cpIndex].slot2)); }
U_16 getSourceFileIndex() const { return hasSourceFile() ? _sourceFile->sourceFileIndex : 0; }
U_32 getSourceDebugExtensionLength() const { return hasSourceDebugExtension() ? _sourceDebugExtension->length : 0; }
U_8 *getSourceDebugExtensionData() const { return hasSourceDebugExtension() ? _sourceDebugExtension->value : NULL; }
U_16 getBootstrapMethodCount() const { return hasBootstrapMethods() ? _bootstrapMethodsAttribute->numberOfBootstrapMethods : 0; }
bool hasClassAnnotations() const { return NULL != _annotationsAttribute; }
bool hasTypeAnnotations() const { return NULL != _typeAnnotationsAttribute; }
U_16 getFieldNameIndex(U_16 fieldIndex) const { return _classFile->fields[fieldIndex].nameIndex; }
U_16 getFieldDescriptorIndex(U_16 fieldIndex) const { return _classFile->fields[fieldIndex].descriptorIndex; }
U_16 getMethodNameIndex(U_16 methodIndex) const { return _classFile->methods[methodIndex].nameIndex; }
void sortLineNumberTable(U_16 methodIndex, J9CfrLineNumberTableEntry *lineNumbersInfo);
U_16 getMethodDescriptorIndex(U_16 methodIndex) const { return _classFile->methods[methodIndex].descriptorIndex; }
void getPrimitiveConstant(U_16 cpIndex, U_32 *slot1, U_32 *slot2) const
{
*slot1 = _classFile->constantPool[cpIndex].slot1;
*slot2 = _classFile->constantPool[cpIndex].slot2;
}
U_8 getCPTag(U_16 cpIndex) const { return _classFile->constantPool[cpIndex].tag; }
U_32 getCPSlot1(U_16 cpIndex) const { return _classFile->constantPool[cpIndex].slot1; }
U_32 getCPSlot2(U_16 cpIndex) const { return _classFile->constantPool[cpIndex].slot2; }
/*
* Long and Double CP entries are never tagged as "referenced" because they are only reached through LDC2W instructions,
* so don't check the ".referenced" flag in isConstantLong() or isConstantDouble().
*/
bool isConstantLong(U_16 cpIndex) const { return CFR_CONSTANT_Long == _classFile->constantPool[cpIndex].tag; }
bool isConstantDouble(U_16 cpIndex) const { return CFR_CONSTANT_Double == _classFile->constantPool[cpIndex].tag; }
bool isConstantDynamic(U_16 cpIndex) const { return CFR_CONSTANT_Dynamic == _classFile->constantPool[cpIndex].tag;}
bool isConstantInteger0(U_16 cpIndex) const { return (CFR_CONSTANT_Integer == _classFile->constantPool[cpIndex].tag) && (0 == _classFile->constantPool[cpIndex].slot1); }
bool isConstantFloat0(U_16 cpIndex) const { return (CFR_CONSTANT_Float == _classFile->constantPool[cpIndex].tag) && (0 == _classFile->constantPool[cpIndex].slot1); }
bool isUTF8AtIndexEqualToString(U_16 cpIndex, const char *string, UDATA stringSize) { return (getUTF8Length(cpIndex) == (stringSize - 1)) && (0 == memcmp(getUTF8Data(cpIndex), string, stringSize - 1)); }
bool hasEmptyFinalizeMethod() const { return _hasEmptyFinalizeMethod; }
bool hasFinalFields() const { return _hasFinalFields; }
bool isClassContended() const { return _isClassContended; }
bool isClassUnmodifiable() const { return _isClassUnmodifiable; }
bool hasNonStaticNonAbstractMethods() const { return _hasNonStaticNonAbstractMethods; }
bool hasFinalizeMethod() const { return _hasFinalizeMethod; }
bool isCloneable() const { return _isCloneable; }
bool isSerializable() const { return _isSerializable; }
bool isSynthetic() const { return _isSynthetic; }
bool hasEnclosingMethod() const { return NULL != _enclosingMethod; }
bool hasGenericSignature() const { return NULL != _genericSignature; }
bool hasSimpleName() const { return 0 != getSimpleNameIndex(); }
bool hasVerifyExcludeAttribute() const { return _hasVerifyExcludeAttribute; }
bool hasSourceFile() const { return NULL != _sourceFile; }
bool hasSourceDebugExtension() const { return NULL != _sourceDebugExtension; }
bool hasBootstrapMethods() const { return NULL != _bootstrapMethodsAttribute; }
bool hasClinit() const { return _hasClinit; }
bool annotationRefersDoubleSlotEntry() const { return _annotationRefersDoubleSlotEntry; }
bool isInnerClass() const { return _isInnerClass; }
bool needsStaticConstantInit() const { return _needsStaticConstantInit; }
bool isRecord() const { return _isRecord; }
U_16 getRecordComponentCount() const { return _recordComponentCount; }
bool isSealed() const { return _isSealed; }
U_16 getPermittedSubclassesClassCount() const { return _isSealed ? _permittedSubclassesAttribute->numberOfClasses : 0; }
U_16 getPermittedSubclassesClassNameAtIndex(U_16 index) const {
U_16 result = 0;
if (_isSealed) {
U_16 classCpIndex = _permittedSubclassesAttribute->classes[index];
result = _classFile->constantPool[classCpIndex].slot1;
}
return result;
}
U_8 constantDynamicType(U_16 cpIndex) const
{
J9CfrConstantPoolInfo* nas = &_classFile->constantPool[_classFile->constantPool[cpIndex].slot2];
J9CfrConstantPoolInfo* signature = &_classFile->constantPool[nas->slot2];
U_8 result = 0;
if ('D' == signature->bytes[0]) {
result = JBldc2dw;
} else if ('J' == signature->bytes[0]) {
result = JBldc2lw;
} else {
Trc_BCU_Assert_ShouldNeverHappen();