blob: 8b5b98adf8db1f108bf12a4a3d63dd34f006768c [file] [log] [blame]
package org.eclipse.jdt.internal.compiler;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
/**
* Represents a class file wrapper on bytes, it is aware of its actual
* type name.
*
* Public APIs are listed below:
*
* byte[] getBytes();
* Answer the actual bytes of the class file
*
* char[][] getCompoundName();
* Answer the compound name of the class file.
* For example, {{java}, {util}, {Hashtable}}.
*
* byte[] getReducedBytes();
* Answer a smaller byte format, which is only contains some structural
* information. Those bytes are decodable with a regular class file reader,
* such as DietClassFileReader
*/
import java.io.*;
import java.util.*;
import org.eclipse.jdt.internal.compiler.Compiler;
import org.eclipse.jdt.internal.compiler.*;
import org.eclipse.jdt.internal.compiler.impl.*;
import org.eclipse.jdt.internal.compiler.ast.*;
import org.eclipse.jdt.internal.compiler.codegen.*;
import org.eclipse.jdt.internal.compiler.lookup.*;
import org.eclipse.jdt.internal.compiler.problem.*;
import org.eclipse.jdt.internal.compiler.util.*;
public class ClassFile implements AttributeNamesConstants, CompilerModifiers, TypeConstants, TypeIds {
public SourceTypeBinding referenceBinding;
public ConstantPool constantPool;
public ClassFile enclosingClassFile; // used to generate private access methods
public int produceDebugAttributes;
public ReferenceBinding[] innerClassesBindings;
public int numberOfInnerClasses;
public byte[] header; // the header contains all the bytes till the end of the constant pool
public byte[] contents; // that collection contains all the remaining bytes of the .class file
public int headerOffset;
public int contentsOffset;
public int constantPoolOffset;
public int methodCountOffset;
public int methodCount;
protected boolean creatingProblemType;
public static final int INITIAL_CONTENTS_SIZE = 1000;
public static final int INITIAL_HEADER_SIZE = 1000;
public static final int INCREMENT_SIZE = 1000;
public static final int INNER_CLASSES_SIZE = 5;
protected CharArrayCache nameUsage;
public CodeStream codeStream;
protected int problemLine; // used to create line number attributes for problem methods
/**
* INTERNAL USE-ONLY
* This methods creates a new instance of the receiver.
*/
public ClassFile() {}
/**
* INTERNAL USE-ONLY
* This methods creates a new instance of the receiver.
*
* @param aType org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding
* @param enclosingClassFile org.eclipse.jdt.internal.compiler.ClassFile
* @param creatingProblemType <CODE>boolean</CODE>
*/
public ClassFile(SourceTypeBinding aType, ClassFile enclosingClassFile, boolean creatingProblemType) {
referenceBinding = aType;
header = new byte[INITIAL_HEADER_SIZE];
// generate the magic numbers inside the header
header[headerOffset++] = (byte) (0xCAFEBABEL >> 24);
header[headerOffset++] = (byte) (0xCAFEBABEL >> 16);
header[headerOffset++] = (byte) (0xCAFEBABEL >> 8);
header[headerOffset++] = (byte) (0xCAFEBABEL >> 0);
if (((SourceTypeBinding) referenceBinding).scope.environment().options.targetJDK == CompilerOptions.JDK1_2) {
// Compatible with JDK 1.2
header[headerOffset++] = 0; // minorVersion = 0 means we just need to offset the current offset by 2
header[headerOffset++] = 0;
header[headerOffset++] = 0;
header[headerOffset++] = 46;
} else {
// Compatible with JDK 1.1
header[headerOffset++] = 0;
header[headerOffset++] = 3;
header[headerOffset++] = 0;
header[headerOffset++] = 45;
}
constantPoolOffset = headerOffset;
headerOffset += 2;
constantPool = new ConstantPool(this);
int accessFlags = aType.getAccessFlags() | AccSuper;
if (aType.isNestedType()) {
if (aType.isStatic()) {
// clear Acc_Static
accessFlags &= ~AccStatic;
}
if (aType.isPrivate()) {
// clear Acc_Private and Acc_Public
accessFlags &= ~ (AccPrivate | AccPublic);
}
if (aType.isProtected()) {
// clear Acc_Protected and set Acc_Public
accessFlags &= ~AccProtected;
accessFlags |= AccPublic;
}
}
// clear all bits that are illegal for a class or an interface
accessFlags &= ~(AccStrictfp | AccProtected | AccPrivate | AccStatic | AccSynchronized | AccNative);
this.enclosingClassFile = enclosingClassFile;
// innerclasses get their names computed at code gen time
if (aType.isLocalType()) {
((LocalTypeBinding) aType).constantPoolName(computeConstantPoolName((LocalTypeBinding) aType));
ReferenceBinding[] memberTypes = aType.memberTypes();
for (int i = 0, max = memberTypes.length; i < max; i++) {
((LocalTypeBinding) memberTypes[i]).constantPoolName(computeConstantPoolName((LocalTypeBinding) memberTypes[i]));
}
}
contents = new byte[INITIAL_CONTENTS_SIZE];
// now we continue to generate the bytes inside the contents array
contents[contentsOffset++] = (byte) (accessFlags >> 8);
contents[contentsOffset++] = (byte) accessFlags;
int classNameIndex = constantPool.literalIndex(aType);
contents[contentsOffset++] = (byte) (classNameIndex >> 8);
contents[contentsOffset++] = (byte) classNameIndex;
int superclassNameIndex;
if (aType.isInterface()) {
superclassNameIndex = constantPool.literalIndexForJavaLangObject();
} else {
superclassNameIndex = (aType.superclass == null ? 0 : constantPool.literalIndex(aType.superclass));
}
contents[contentsOffset++] = (byte) (superclassNameIndex >> 8);
contents[contentsOffset++] = (byte) superclassNameIndex;
ReferenceBinding[] superInterfacesBinding = aType.superInterfaces();
int interfacesCount = superInterfacesBinding.length;
contents[contentsOffset++] = (byte) (interfacesCount >> 8);
contents[contentsOffset++] = (byte) interfacesCount;
if (superInterfacesBinding != null) {
for (int i = 0; i < interfacesCount; i++) {
int interfaceIndex = constantPool.literalIndex(superInterfacesBinding[i]);
contents[contentsOffset++] = (byte) (interfaceIndex >> 8);
contents[contentsOffset++] = (byte) interfaceIndex;
}
}
produceDebugAttributes = ((SourceTypeBinding) referenceBinding).scope.environment().options.produceDebugAttributes;
innerClassesBindings = new ReferenceBinding[INNER_CLASSES_SIZE];
this.creatingProblemType = creatingProblemType;
codeStream = new CodeStream(this);
// retrieve the enclosing one guaranteed to be the one matching the propagated flow info
// 1FF9ZBU: LFCOM:ALL - Local variable attributes busted (Sanity check)
ClassFile outermostClassFile = this.outerMostEnclosingClassFile();
if (this == outermostClassFile) {
codeStream.maxFieldCount = aType.scope.referenceType().maxFieldCount;
} else {
codeStream.maxFieldCount = outermostClassFile.codeStream.maxFieldCount;
}
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a boggus method.
*
* @param method org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.MethodBinding
*/
public void addAbstractMethod(
AbstractMethodDeclaration method,
MethodBinding methodBinding) {
// force the modifiers to be public and abstract
methodBinding.modifiers = AccPublic | AccAbstract;
this.generateMethodInfoHeader(methodBinding);
int methodAttributeOffset = this.contentsOffset;
int attributeNumber = this.generateMethodInfoAttribute(methodBinding);
this.completeMethodInfo(methodAttributeOffset, attributeNumber);
}
/**
* INTERNAL USE-ONLY
* This methods generate all the attributes for the receiver.
* For a class they could be:
* - source file attribute
* - inner classes attribute
* - deprecated attribute
*/
public void addAttributes() {
// update the method count
contents[methodCountOffset++] = (byte) (methodCount >> 8);
contents[methodCountOffset] = (byte) methodCount;
int attributeNumber = 0;
// leave two bytes for the number of attributes and store the current offset
int attributeOffset = contentsOffset;
contentsOffset += 2;
// source attribute
if ((produceDebugAttributes & CompilerOptions.Source) != 0) {
String fullFileName = new String(referenceBinding.scope.referenceCompilationUnit().getFileName());
fullFileName = fullFileName.replace('\\', '/');
int lastIndex = fullFileName.lastIndexOf('/');
if (lastIndex != -1) {
fullFileName = fullFileName.substring(lastIndex + 1, fullFileName.length());
}
// check that there is enough space to write all the bytes for the field info corresponding
// to the @fieldBinding
int contentsLength;
if (contentsOffset + 8 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int sourceAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SourceName);
contents[contentsOffset++] = (byte) (sourceAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) sourceAttributeNameIndex;
// The length of a source file attribute is 2. This is a fixed-length
// attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 2;
// write the source file name
int fileNameIndex = constantPool.literalIndex(fullFileName.toCharArray());
contents[contentsOffset++] = (byte) (fileNameIndex >> 8);
contents[contentsOffset++] = (byte) fileNameIndex;
attributeNumber++;
}
// Deprecated attribute
if (referenceBinding.isDeprecated()) {
// check that there is enough space to write all the bytes for the field info corresponding
// to the @fieldBinding
int contentsLength;
if (contentsOffset + 6 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int deprecatedAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.DeprecatedName);
contents[contentsOffset++] = (byte) (deprecatedAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) deprecatedAttributeNameIndex;
// the length of a deprecated attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
attributeNumber++;
}
// Inner class attribute
if (numberOfInnerClasses != 0) {
// Generate the inner class attribute
int contentsLength;
int exSize;
if (contentsOffset + (exSize = (8 * numberOfInnerClasses + 8)) >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + (exSize >= INCREMENT_SIZE ? exSize : INCREMENT_SIZE)]), 0, contentsLength);
}
// Now we now the size of the attribute and the number of entries
// attribute name
int attributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.InnerClassName);
contents[contentsOffset++] = (byte) (attributeNameIndex >> 8);
contents[contentsOffset++] = (byte) attributeNameIndex;
int value = (numberOfInnerClasses << 3) + 2;
contents[contentsOffset++] = (byte) (value >> 24);
contents[contentsOffset++] = (byte) (value >> 16);
contents[contentsOffset++] = (byte) (value >> 8);
contents[contentsOffset++] = (byte) value;
contents[contentsOffset++] = (byte) (numberOfInnerClasses >> 8);
contents[contentsOffset++] = (byte) numberOfInnerClasses;
for (int i = 0; i < numberOfInnerClasses; i++) {
ReferenceBinding innerClass = innerClassesBindings[i];
int accessFlags = innerClass.getAccessFlags();
int innerClassIndex = constantPool.literalIndex(innerClass);
// inner class index
contents[contentsOffset++] = (byte) (innerClassIndex >> 8);
contents[contentsOffset++] = (byte) innerClassIndex;
// outer class index: anonymous and local have no outer class index
if (innerClass.isMemberType()) {
// member or member of local
int outerClassIndex = constantPool.literalIndex(innerClass.enclosingType());
contents[contentsOffset++] = (byte) (outerClassIndex >> 8);
contents[contentsOffset++] = (byte) outerClassIndex;
} else {
// equals to 0 if the innerClass is not a member type
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
}
// name index
if (!innerClass.isAnonymousType()) {
int nameIndex = constantPool.literalIndex(innerClass.sourceName());
contents[contentsOffset++] = (byte) (nameIndex >> 8);
contents[contentsOffset++] = (byte) nameIndex;
} else {
// equals to 0 if the innerClass is an anonymous type
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
}
// access flag
if (innerClass.isAnonymousType()) {
accessFlags |= AccPrivate;
} else
if (innerClass.isLocalType() && !innerClass.isMemberType()) {
accessFlags |= AccPrivate;
}
contents[contentsOffset++] = (byte) (accessFlags >> 8);
contents[contentsOffset++] = (byte) accessFlags;
}
attributeNumber++;
}
// update the number of attributes
contents[attributeOffset++] = (byte) (attributeNumber >> 8);
contents[attributeOffset] = (byte) attributeNumber;
// resynchronize all offsets of the classfile
header = constantPool.poolContent;
headerOffset = constantPool.currentOffset;
int constantPoolCount = constantPool.currentIndex;
header[constantPoolOffset++] = (byte) (constantPoolCount >> 8);
header[constantPoolOffset] = (byte) constantPoolCount;
}
/**
* INTERNAL USE-ONLY
* This methods generate all the default abstract method infos that correpond to
* the abstract methods inherited from superinterfaces.
*/
public void addDefaultAbstractMethods() { // default abstract methods
MethodBinding[] defaultAbstractMethods = referenceBinding.getDefaultAbstractMethods();
for (int i = 0, max = defaultAbstractMethods.length; i < max; i++) {
generateMethodInfoHeader(defaultAbstractMethods[i]);
int methodAttributeOffset = contentsOffset;
int attributeNumber = generateMethodInfoAttribute(defaultAbstractMethods[i]);
completeMethodInfo(methodAttributeOffset, attributeNumber);
}
}
/**
* INTERNAL USE-ONLY
* This methods generates the bytes for the field binding passed like a parameter
* @param fieldBinding org.eclipse.jdt.internal.compiler.lookup.FieldBinding
*/
public void addFieldInfo(FieldBinding fieldBinding) {
int attributeNumber = 0;
// check that there is enough space to write all the bytes for the field info corresponding
// to the @fieldBinding
int contentsLength;
if (contentsOffset + 30 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// Generate two attribute: constantValueAttribute and SyntheticAttribute
// Now we can generate all entries into the byte array
// First the accessFlags
int accessFlags = fieldBinding.getAccessFlags();
contents[contentsOffset++] = (byte) (accessFlags >> 8);
contents[contentsOffset++] = (byte) accessFlags;
// Then the nameIndex
int nameIndex = constantPool.literalIndex(fieldBinding.name);
contents[contentsOffset++] = (byte) (nameIndex >> 8);
contents[contentsOffset++] = (byte) nameIndex;
// Then the descriptorIndex
int descriptorIndex = constantPool.literalIndex(fieldBinding.type.signature());
contents[contentsOffset++] = (byte) (descriptorIndex >> 8);
contents[contentsOffset++] = (byte) descriptorIndex;
// leave some space for the number of attributes
int fieldAttributeOffset = contentsOffset;
contentsOffset += 2;
// 4.7.2 only static constant fields get a ConstantAttribute
if (fieldBinding.isStatic()
&& fieldBinding.constant != Constant.NotAConstant
&& fieldBinding.constant.typeID() != T_null) {
// Now we generate the constant attribute corresponding to the fieldBinding
int constantValueNameIndex = constantPool.literalIndex(AttributeNamesConstants.ConstantValueName);
contents[contentsOffset++] = (byte) (constantValueNameIndex >> 8);
contents[contentsOffset++] = (byte) constantValueNameIndex;
// The attribute length = 2 in case of a constantValue attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 2;
attributeNumber++;
// Need to add the constant_value_index
switch (fieldBinding.constant.typeID()) {
case T_boolean :
int booleanValueIndex = constantPool.literalIndex(fieldBinding.constant.booleanValue() ? 1 : 0);
contents[contentsOffset++] = (byte) (booleanValueIndex >> 8);
contents[contentsOffset++] = (byte) booleanValueIndex;
break;
case T_byte :
case T_char :
case T_int :
case T_short :
int integerValueIndex = constantPool.literalIndex(fieldBinding.constant.intValue());
contents[contentsOffset++] = (byte) (integerValueIndex >> 8);
contents[contentsOffset++] = (byte) integerValueIndex;
break;
case T_float :
int floatValueIndex = constantPool.literalIndex(fieldBinding.constant.floatValue());
contents[contentsOffset++] = (byte) (floatValueIndex >> 8);
contents[contentsOffset++] = (byte) floatValueIndex;
break;
case T_double :
int doubleValueIndex = constantPool.literalIndex(fieldBinding.constant.doubleValue());
contents[contentsOffset++] = (byte) (doubleValueIndex >> 8);
contents[contentsOffset++] = (byte) doubleValueIndex;
break;
case T_long :
int longValueIndex = constantPool.literalIndex(fieldBinding.constant.longValue());
contents[contentsOffset++] = (byte) (longValueIndex >> 8);
contents[contentsOffset++] = (byte) longValueIndex;
break;
case T_String :
int stringValueIndex = constantPool.literalIndex(((StringConstant) fieldBinding.constant).stringValue());
if (stringValueIndex == -1) {
if (!creatingProblemType) {
// report an error and abort: will lead to a problem type classfile creation
TypeDeclaration typeDeclaration = referenceBinding.scope.referenceContext;
FieldDeclaration[] fieldDecls = typeDeclaration.fields;
for (int i = 0, max = fieldDecls.length; i < max; i++) {
if (fieldDecls[i].binding == fieldBinding) {
// problem should abort
typeDeclaration.scope.problemReporter().stringConstantIsExceedingUtf8Limit(fieldDecls[i]);
}
}
} else {
// already inside a problem type creation : no constant for this field
contentsOffset = fieldAttributeOffset + 2; // +2 is necessary to keep the two byte space for the attribute number
attributeNumber--;
}
} else {
contents[contentsOffset++] = (byte) (stringValueIndex >> 8);
contents[contentsOffset++] = (byte) stringValueIndex;
}
}
}
if (fieldBinding.isSynthetic()) {
int syntheticAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SyntheticName);
contents[contentsOffset++] = (byte) (syntheticAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) syntheticAttributeNameIndex;
// the length of a synthetic attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
attributeNumber++;
}
if (fieldBinding.isDeprecated()) {
int deprecatedAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.DeprecatedName);
contents[contentsOffset++] = (byte) (deprecatedAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) deprecatedAttributeNameIndex;
// the length of a deprecated attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
attributeNumber++;
}
contents[fieldAttributeOffset++] = (byte) (attributeNumber >> 8);
contents[fieldAttributeOffset] = (byte) attributeNumber;
}
/**
* INTERNAL USE-ONLY
* This methods generate all the fields infos for the receiver.
* This includes:
* - a field info for each defined field of that class
* - a field info for each synthetic field (e.g. this$0)
*/
public void addFieldInfos() {
SourceTypeBinding currentBinding = referenceBinding;
FieldBinding[] syntheticFields = currentBinding.syntheticFields();
int fieldCount = currentBinding.fieldCount() + (syntheticFields == null ? 0 : syntheticFields.length);
// write the number of fields
contents[contentsOffset++] = (byte) (fieldCount >> 8);
contents[contentsOffset++] = (byte) fieldCount;
FieldBinding[] fieldBindings = currentBinding.fields();
for (int i = 0, max = fieldBindings.length; i < max; i++) {
addFieldInfo(fieldBindings[i]);
}
if (syntheticFields != null) {
for (int i = 0, max = syntheticFields.length; i < max; i++) {
addFieldInfo(syntheticFields[i]);
}
}
}
/**
* INTERNAL USE-ONLY
* This methods stores the bindings for each inner class. They will be used to know which entries
* have to be generated for the inner classes attributes.
* @param referenceBinding org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding
*/
public void addInnerClasses(ReferenceBinding referenceBinding) {
// check first if that reference binding is there
for (int i = 0; i < numberOfInnerClasses; i++) {
if (innerClassesBindings[i] == referenceBinding)
return;
}
int length = innerClassesBindings.length;
if (numberOfInnerClasses == length) {
System.arraycopy(innerClassesBindings, 0, (innerClassesBindings = new ReferenceBinding[length * 2]), 0, length);
}
innerClassesBindings[numberOfInnerClasses++] = referenceBinding;
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem clinit method info that correspond to a boggus method.
*
* @param problem org.eclipse.jdt.internal.compiler.problem.Problem[]
*/
public void addProblemClinit(IProblem[] problems) {
generateMethodInfoHeaderForClinit();
// leave two spaces for the number of attributes
contentsOffset -= 2;
int attributeOffset = contentsOffset;
contentsOffset += 2;
ReferenceBinding[] thrownsExceptions;
int attributeNumber = 0;
int contentsLength;
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
codeStream.resetForProblemClinit(this);
String problemString = ""/*nonNLS*/;
if (problems != null) {
int max = problems.length;
StringBuffer buffer = new StringBuffer(25);
int count = 0;
for (int i = 0; i < max; i++) {
IProblem problem = problems[i];
if ((problem != null) && (problem.isError())) {
buffer.append("\t"/*nonNLS*/ + problem.getMessage() + "\n"/*nonNLS*/);
count++;
if (problemLine == 0) {
problemLine = problem.getSourceLineNumber();
}
problems[i] = null;
}
} // insert the top line afterwards, once knowing how many problems we have to consider
if (count > 1) {
buffer.insert(0, Util.bind("compilation.unresolvedProblems"/*nonNLS*/));
} else {
buffer.insert(0, Util.bind("compilation.unresolvedProblem"/*nonNLS*/));
}
problemString = buffer.toString();
}
// return codeStream.generateCodeAttributeForProblemMethod(comp.options.runtimeExceptionNameForCompileError, "")
int[] exceptionHandler = codeStream.generateCodeAttributeForProblemMethod(referenceBinding.scope.problemReporter().options.runtimeExceptionNameForCompileError, problemString);
attributeNumber++; // code attribute
completeCodeAttributeForClinit(
codeAttributeOffset,
exceptionHandler,
referenceBinding
.scope
.referenceCompilationUnit()
.compilationResult
.lineSeparatorPositions);
contents[attributeOffset++] = (byte) (attributeNumber >> 8);
contents[attributeOffset] = (byte) attributeNumber;
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a boggus constructor.
*
* @param method org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.MethodBinding
* @param problem org.eclipse.jdt.internal.compiler.problem.Problem[]
*/
public void addProblemConstructor(
AbstractMethodDeclaration method,
MethodBinding methodBinding,
IProblem[] problems) {
// always clear the strictfp/native/abstract bit for a problem method
methodBinding.modifiers &= ~(AccStrictfp | AccNative | AccAbstract);
generateMethodInfoHeader(methodBinding);
// We know that we won't get more than 1 attribute: the code attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 1; // Code attribute
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
final ProblemReporter problemReporter = method.scope.problemReporter();
codeStream.reset(method, this);
String problemString = ""/*nonNLS*/;
if (problems != null) {
int max = problems.length;
StringBuffer buffer = new StringBuffer(25);
int count = 0;
for (int i = 0; i < max; i++) {
IProblem problem = problems[i];
if ((problem != null) && (problem.isError())) {
buffer.append("\t"/*nonNLS*/ + problem.getMessage() + "\n"/*nonNLS*/);
count++;
if (problemLine == 0) {
problemLine = problem.getSourceLineNumber();
}
}
} // insert the top line afterwards, once knowing how many problems we have to consider
if (count > 1) {
buffer.insert(0, Util.bind("compilation.unresolvedProblems"/*nonNLS*/));
} else {
buffer.insert(0, Util.bind("compilation.unresolvedProblem"/*nonNLS*/));
}
problemString = buffer.toString();
}
// return codeStream.generateCodeAttributeForProblemMethod(comp.options.runtimeExceptionNameForCompileError, "")
int[] exceptionHandler =
codeStream.generateCodeAttributeForProblemMethod(
problemReporter.options.runtimeExceptionNameForCompileError,
problemString);
completeCodeAttributeForProblemMethod(
method,
methodBinding,
codeAttributeOffset,
exceptionHandler,
((SourceTypeBinding) methodBinding.declaringClass)
.scope
.referenceCompilationUnit()
.compilationResult
.lineSeparatorPositions);
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a boggus constructor.
* Reset the position inside the contents byte array to the savedOffset.
*
* @param method org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.MethodBinding
* @param problem org.eclipse.jdt.internal.compiler.problem.Problem[]
* @param savedOffset <CODE>int</CODE>
*/
public void addProblemConstructor(AbstractMethodDeclaration method, MethodBinding methodBinding,IProblem[] problems, int savedOffset) {
// we need to move back the contentsOffset to the value at the beginning of the method
contentsOffset = savedOffset;
methodCount--; // we need to remove the method that causes the problem
addProblemConstructor(method, methodBinding, problems);
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a boggus method.
*
* @param method org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.MethodBinding
* @param problem org.eclipse.jdt.internal.compiler.problem.Problem[]
*/
public void addProblemMethod(
AbstractMethodDeclaration method,
MethodBinding methodBinding,
IProblem[] problems) {
if (methodBinding.isAbstract() && methodBinding.declaringClass.isInterface()) {
method.abort(AbstractMethodDeclaration.AbortType);
}
// always clear the strictfp/native/abstract bit for a problem method
methodBinding.modifiers &= ~(AccStrictfp | AccNative | AccAbstract);
generateMethodInfoHeader(methodBinding);
// leave two spaces for the number of attributes
int attributeOffset = contentsOffset;
contentsOffset += 2;
ReferenceBinding[] thrownsExceptions;
int attributeNumber = 0;
int contentsLength;
if ((thrownsExceptions = methodBinding.thrownExceptions) != NoExceptions) {
// The method has a throw clause. So we need to add an exception attribute
// check that there is enough space to write all the bytes for the exception attribute
int length = thrownsExceptions.length;
if (contentsOffset + (8 + length * 2) >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + Math.max(INCREMENT_SIZE, (8 + length * 2))]), 0, contentsLength);
}
int exceptionNameIndex = constantPool.literalIndex(AttributeNamesConstants.ExceptionsName);
contents[contentsOffset++] = (byte) (exceptionNameIndex >> 8);
contents[contentsOffset++] = (byte) exceptionNameIndex;
// The attribute length = length * 2 + 2 in case of a exception attribute
int attributeLength = length * 2 + 2;
contents[contentsOffset++] = (byte) (attributeLength >> 24);
contents[contentsOffset++] = (byte) (attributeLength >> 16);
contents[contentsOffset++] = (byte) (attributeLength >> 8);
contents[contentsOffset++] = (byte) attributeLength;
contents[contentsOffset++] = (byte) (length >> 8);
contents[contentsOffset++] = (byte) length;
for (int i = 0; i < length; i++) {
int exceptionIndex = constantPool.literalIndex(thrownsExceptions[i]);
contents[contentsOffset++] = (byte) (exceptionIndex >> 8);
contents[contentsOffset++] = (byte) exceptionIndex;
}
attributeNumber++;
}
// Deprecated attribute
// Check that there is enough space to write the deprecated attribute
if (contentsOffset + 6 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
if (methodBinding.isDeprecated()) {
int deprecatedAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.DeprecatedName);
contents[contentsOffset++] = (byte) (deprecatedAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) deprecatedAttributeNameIndex;
// the length of a deprecated attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
attributeNumber++;
}
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
final ProblemReporter problemReporter = method.scope.problemReporter();
codeStream.reset(method, this);
String problemString = ""/*nonNLS*/;
if (problems != null) {
int max = problems.length;
StringBuffer buffer = new StringBuffer(25);
int count = 0;
for (int i = 0; i < max; i++) {
IProblem problem = problems[i];
if ((problem != null)
&& (problem.isError())
&& (problem.getSourceStart() >= method.declarationSourceStart)
&& (problem.getSourceEnd() <= method.declarationSourceEnd)) {
buffer.append("\t"/*nonNLS*/ + problem.getMessage() + "\n"/*nonNLS*/);
count++;
if (problemLine == 0) {
problemLine = problem.getSourceLineNumber();
}
problems[i] = null;
}
} // insert the top line afterwards, once knowing how many problems we have to consider
if (count > 1) {
buffer.insert(0, Util.bind("compilation.unresolvedProblems"/*nonNLS*/));
} else {
buffer.insert(0, Util.bind("compilation.unresolvedProblem"/*nonNLS*/));
}
problemString = buffer.toString();
}
// return codeStream.generateCodeAttributeForProblemMethod(comp.options.runtimeExceptionNameForCompileError, "")
int[] exceptionHandler =
codeStream.generateCodeAttributeForProblemMethod(
problemReporter.options.runtimeExceptionNameForCompileError,
problemString);
attributeNumber++; // code attribute
completeCodeAttributeForProblemMethod(
method,
methodBinding,
codeAttributeOffset,
exceptionHandler,
((SourceTypeBinding) methodBinding.declaringClass)
.scope
.referenceCompilationUnit()
.compilationResult
.lineSeparatorPositions);
contents[attributeOffset++] = (byte) (attributeNumber >> 8);
contents[attributeOffset] = (byte) attributeNumber;
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a boggus method.
* Reset the position inside the contents byte array to the savedOffset.
*
* @param method org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.MethodBinding
* @param problem org.eclipse.jdt.internal.compiler.problem.Problem[]
* @param savedOffset <CODE>int</CODE>
*/
public void addProblemMethod(AbstractMethodDeclaration method, MethodBinding methodBinding,IProblem[] problems, int savedOffset) {
// we need to move back the contentsOffset to the value at the beginning of the method
contentsOffset = savedOffset;
methodCount--; // we need to remove the method that causes the problem
addProblemMethod(method, methodBinding, problems);
}
/**
* INTERNAL USE-ONLY
* Generate the byte for all the special method infos.
* They are:
* - synthetic access methods
* - default abstract methods
*/
public void addSpecialMethods() {
// add all methods (default abstract methods and synthetic)
// default abstract methods
SourceTypeBinding currentBinding = referenceBinding;
MethodBinding[] defaultAbstractMethods = currentBinding.getDefaultAbstractMethods();
for (int i = 0, max = defaultAbstractMethods.length; i < max; i++) {
generateMethodInfoHeader(defaultAbstractMethods[i]);
int methodAttributeOffset = contentsOffset;
int attributeNumber = generateMethodInfoAttribute(defaultAbstractMethods[i]);
completeMethodInfo(methodAttributeOffset, attributeNumber);
}
// add synthetic methods infos
SyntheticAccessMethodBinding[] syntheticAccessMethods = currentBinding.syntheticAccessMethods();
if (syntheticAccessMethods != null) {
for (int i = 0, max = syntheticAccessMethods.length; i < max; i++) {
SyntheticAccessMethodBinding accessMethodBinding = syntheticAccessMethods[i];
switch (accessMethodBinding.accessType) {
case SyntheticAccessMethodBinding.FieldReadAccess :
// generate a method info to emulate an reading access to
// a private field
addSyntheticFieldReadAccessMethod(syntheticAccessMethods[i]);
break;
case SyntheticAccessMethodBinding.FieldWriteAccess :
// generate a method info to emulate an writing access to
// a private field
addSyntheticFieldWriteAccessMethod(syntheticAccessMethods[i]);
break;
case SyntheticAccessMethodBinding.MethodAccess :
// generate a method info to emulate an access to a private method
addSyntheticMethodAccessMethod(syntheticAccessMethods[i]);
break;
case SyntheticAccessMethodBinding.ConstructorAccess :
// generate a method info to emulate an access to a private method
addSyntheticConstructorAccessMethod(syntheticAccessMethods[i]);
}
}
}
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a synthetic method that
* generate an access to a private constructor.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.SyntheticAccessMethodBinding
*/
public void addSyntheticConstructorAccessMethod(SyntheticAccessMethodBinding methodBinding) {
generateMethodInfoHeader(methodBinding);
// We know that we won't get more than 2 attribute: the code attribute + synthetic attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 2;
// Code attribute
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
codeStream.init(this);
codeStream.generateSyntheticBodyForConstructorAccess(methodBinding);
completeCodeAttributeForSyntheticAccessMethod(methodBinding, codeAttributeOffset, ((SourceTypeBinding) methodBinding.declaringClass).scope.referenceCompilationUnit().compilationResult.lineSeparatorPositions);
// add the synthetic attribute
int syntheticAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SyntheticName);
contents[contentsOffset++] = (byte) (syntheticAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) syntheticAttributeNameIndex;
// the length of a synthetic attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a synthetic method that
* generate an read access to a private field.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.SyntheticAccessMethodBinding
*/
public void addSyntheticFieldReadAccessMethod(SyntheticAccessMethodBinding methodBinding) {
generateMethodInfoHeader(methodBinding);
// We know that we won't get more than 2 attribute: the code attribute + synthetic attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 2;
// Code attribute
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
codeStream.init(this);
codeStream.generateSyntheticBodyForFieldReadAccess(methodBinding);
completeCodeAttributeForSyntheticAccessMethod(methodBinding, codeAttributeOffset, ((SourceTypeBinding) methodBinding.declaringClass).scope.referenceCompilationUnit().compilationResult.lineSeparatorPositions);
// add the synthetic attribute
int syntheticAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SyntheticName);
contents[contentsOffset++] = (byte) (syntheticAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) syntheticAttributeNameIndex;
// the length of a synthetic attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a synthetic method that
* generate an write access to a private field.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.SyntheticAccessMethodBinding
*/
public void addSyntheticFieldWriteAccessMethod(SyntheticAccessMethodBinding methodBinding) {
generateMethodInfoHeader(methodBinding);
// We know that we won't get more than 2 attribute: the code attribute + synthetic attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 2;
// Code attribute
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
codeStream.init(this);
codeStream.generateSyntheticBodyForFieldWriteAccess(methodBinding);
completeCodeAttributeForSyntheticAccessMethod(methodBinding, codeAttributeOffset, ((SourceTypeBinding) methodBinding.declaringClass).scope.referenceCompilationUnit().compilationResult.lineSeparatorPositions);
// add the synthetic attribute
int syntheticAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SyntheticName);
contents[contentsOffset++] = (byte) (syntheticAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) syntheticAttributeNameIndex;
// the length of a synthetic attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
}
/**
* INTERNAL USE-ONLY
* Generate the byte for a problem method info that correspond to a synthetic method that
* generate an access to a private method.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.SyntheticAccessMethodBinding
*/
public void addSyntheticMethodAccessMethod(SyntheticAccessMethodBinding methodBinding) {
generateMethodInfoHeader(methodBinding);
// We know that we won't get more than 2 attribute: the code attribute + synthetic attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 2;
// Code attribute
int codeAttributeOffset = contentsOffset;
generateCodeAttributeHeader();
codeStream.init(this);
codeStream.generateSyntheticBodyForMethodAccess(methodBinding);
completeCodeAttributeForSyntheticAccessMethod(methodBinding, codeAttributeOffset, ((SourceTypeBinding) methodBinding.declaringClass).scope.referenceCompilationUnit().compilationResult.lineSeparatorPositions);
// add the synthetic attribute
int syntheticAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SyntheticName);
contents[contentsOffset++] = (byte) (syntheticAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) syntheticAttributeNameIndex;
// the length of a synthetic attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
}
/**
* INTERNAL USE-ONLY
* Build all the directories and subdirectories corresponding to the packages names
* into the directory specified in parameters.
*
* outputPath is formed like:
* c:\temp\ the last character is a file separator
* relativeFileName is formed like:
* java\lang\String.class *
*
* @param outputPath java.lang.String
* @param relativeFileName java.lang.String
* @return java.lang.String
*/
public static String buildAllDirectoriesInto(String outputPath, String relativeFileName) throws IOException {
char fileSeparatorChar = File.separatorChar;
String fileSeparator = File.separator;
File f;
// First we ensure that the outputPath exists
outputPath = outputPath.replace('/', fileSeparatorChar);
// To be able to pass the mkdirs() method we need to remove the extra file separator at the end of the outDir name
if (outputPath.endsWith(fileSeparator)) {
outputPath = outputPath.substring(0, outputPath.length() - 1);
}
f = new File(outputPath);
if (f.exists()) {
if (!f.isDirectory()) {
System.out.println(Util.bind("output.isFile"/*nonNLS*/,f.getAbsolutePath()));
throw new IOException(Util.bind("output.isFileNotDirectory"/*nonNLS*/));
}
} else {
// we have to create that directory
if (!f.mkdirs()) {
System.out.println(Util.bind("output.dirName"/*nonNLS*/,f.getAbsolutePath()));
throw new IOException(Util.bind("output.notValidAll"/*nonNLS*/));
}
}
StringBuffer outDir = new StringBuffer(outputPath);
outDir.append(fileSeparator);
StringTokenizer tokenizer = new StringTokenizer(relativeFileName, fileSeparator);
String token = tokenizer.nextToken();
while (tokenizer.hasMoreTokens()) {
f = new File(outDir.append(token).append(fileSeparator).toString());
if (f.exists()) {
// The outDir already exists, so we proceed the next entry
// System.out.println("outDir: " + outDir + " already exists.");
} else {
// Need to add the outDir
if (!f.mkdir()) {
System.out.println(Util.bind("output.fileName"/*nonNLS*/,f.getName()));
throw new IOException(Util.bind("output.notValid"/*nonNLS*/));
}
}
token = tokenizer.nextToken();
}
// token contains the last one
return outDir.append(token).toString();
}
/**
* INTERNAL USE-ONLY
* That method completes the creation of the code attribute by setting
* - the attribute_length
* - max_stack
* - max_locals
* - code_length
* - exception table
* - and debug attributes if necessary.
*
* @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
* @param codeAttributeOffset <CODE>int</CODE>
*/
public void completeCodeAttribute(int codeAttributeOffset) {
// reinitialize the localContents with the byte modified by the code stream
byte[] localContents = contents = codeStream.bCodeStream;
int localContentsOffset = codeStream.classFileOffset;
// codeAttributeOffset is the position inside localContents byte array before we started to write
// any information about the codeAttribute
// That means that to write the attribute_length you need to offset by 2 the value of codeAttributeOffset
// to get the right position, 6 for the max_stack etc...
int contentsLength;
int code_length = codeStream.position;
if (code_length > 65535) {
codeStream.methodDeclaration.scope.problemReporter().bytecodeExceeds64KLimit(codeStream.methodDeclaration);
}
if (localContentsOffset + 20 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int max_stack = codeStream.stackMax;
localContents[codeAttributeOffset + 6] = (byte) (max_stack >> 8);
localContents[codeAttributeOffset + 7] = (byte) max_stack;
int max_locals = codeStream.maxLocals;
localContents[codeAttributeOffset + 8] = (byte) (max_locals >> 8);
localContents[codeAttributeOffset + 9] = (byte) max_locals;
localContents[codeAttributeOffset + 10] = (byte) (code_length >> 24);
localContents[codeAttributeOffset + 11] = (byte) (code_length >> 16);
localContents[codeAttributeOffset + 12] = (byte) (code_length >> 8);
localContents[codeAttributeOffset + 13] = (byte) code_length;
// write the exception table
int exceptionHandlersNumber = codeStream.exceptionHandlersNumber;
ExceptionLabel[] exceptionHandlers = codeStream.exceptionHandlers;
int exSize;
if (localContentsOffset + (exSize = (exceptionHandlersNumber * 8 + 2)) >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + (exSize > INCREMENT_SIZE ? exSize : INCREMENT_SIZE)]), 0, contentsLength);
}
// there is no exception table, so we need to offset by 2 the current offset and move
// on the attribute generation
localContents[localContentsOffset++] = (byte) (exceptionHandlersNumber >> 8);
localContents[localContentsOffset++] = (byte) exceptionHandlersNumber;
for (int i = 0; i < exceptionHandlersNumber; i++) {
ExceptionLabel exceptionHandler = exceptionHandlers[i];
int start = exceptionHandler.start;
localContents[localContentsOffset++] = (byte) (start >> 8);
localContents[localContentsOffset++] = (byte) start;
int end = exceptionHandler.end;
localContents[localContentsOffset++] = (byte) (end >> 8);
localContents[localContentsOffset++] = (byte) end;
int handlerPC = exceptionHandler.position;
localContents[localContentsOffset++] = (byte) (handlerPC >> 8);
localContents[localContentsOffset++] = (byte) handlerPC;
if (exceptionHandler.exceptionType == null) {
// any exception handler
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
} else {
int nameIndex;
if (exceptionHandler.exceptionType == TypeBinding.NullBinding) {
/* represents ClassNotFoundException, see class literal access*/
nameIndex = constantPool.literalIndexForJavaLangClassNotFoundException();
} else {
nameIndex = constantPool.literalIndex(exceptionHandler.exceptionType);
}
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
}
}
// debug attributes
int codeAttributeAttributeOffset = localContentsOffset;
int attributeNumber = 0;
// leave two bytes for the attribute_length
localContentsOffset += 2;
// first we handle the linenumber attribute
if (codeStream.generateLineNumberAttributes) {
/* Create and add the line number attribute (used for debugging)
* Build the pairs of:
* (bytecodePC lineNumber)
* according to the table of start line indexes and the pcToSourceMap table
* contained into the codestream
*/
/** OLD CODE
int[][] pcToSourceMapTable;
int previousLineNumber;
int[] flatTable;
int index;
int startLineIndexes[] = codeStream.methodDeclaration.scope.referenceCompilationUnit().compilationResult.lineSeparatorPositions;
int max = startLineIndexes.length;
*/
int[] pcToSourceMapTable;
if (((pcToSourceMapTable = codeStream.pcToSourceMap) != null) && (codeStream.pcToSourceMapSize != 0)) {
int lineNumberNameIndex = constantPool.literalIndex(AttributeNamesConstants.LineNumberTableName);
if (localContentsOffset + 8 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (lineNumberNameIndex >> 8);
localContents[localContentsOffset++] = (byte) lineNumberNameIndex;
int lineNumberTableOffset = localContentsOffset;
localContentsOffset += 6; // leave space for attribute_length and line_number_table_length
/** OLD CODE
previousLineNumber = 0;
// Seems like do would be better, but this preserves the existing behavior.
flatTable = new int[code_length];
for (int i = codeStream.pcToSourceMapSize - 1; i >= 0; i--) {
// entry contains the following structure:
// position 1: startPC
// position 2: endPC
// position 3: sourceStart
// position 4: sourceEnd
// Compute the line number for a given source position
index = searchLineNumber(startLineIndexes, pcToSourceMapTable[i][2]);
for (int j = pcToSourceMapTable[i][0]; j < pcToSourceMapTable[i][1]; j++)
flatTable[j] = index;
}
previousLineNumber = -1;
*/
int numberOfEntries = 0;
int length = codeStream.pcToSourceMapSize;
/** OLD CODE
int length = flatTable.length;
for (int i = 0; i < length; i++) {
if (flatTable[i] != previousLineNumber) {
previousLineNumber = flatTable[i];
// write the entry
if (localContentsOffset + 4 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (i >> 8);
localContents[localContentsOffset++] = (byte) i;
localContents[localContentsOffset++] = (byte) (previousLineNumber >> 8);
localContents[localContentsOffset++] = (byte) previousLineNumber;
numberOfEntries++;
}
}
*/
for (int i = 0; i < length;) {
// write the entry
if (localContentsOffset + 4 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int pc = pcToSourceMapTable[i++];
localContents[localContentsOffset++] = (byte) (pc >> 8);
localContents[localContentsOffset++] = (byte) pc;
int lineNumber = pcToSourceMapTable[i++];
localContents[localContentsOffset++] = (byte) (lineNumber >> 8);
localContents[localContentsOffset++] = (byte) lineNumber;
numberOfEntries++;
}
// now we change the size of the line number attribute
int lineNumberAttr_length = numberOfEntries * 4 + 2;
localContents[lineNumberTableOffset++] = (byte) (lineNumberAttr_length >> 24);
localContents[lineNumberTableOffset++] = (byte) (lineNumberAttr_length >> 16);
localContents[lineNumberTableOffset++] = (byte) (lineNumberAttr_length >> 8);
localContents[lineNumberTableOffset++] = (byte) lineNumberAttr_length;
localContents[lineNumberTableOffset++] = (byte) (numberOfEntries >> 8);
localContents[lineNumberTableOffset++] = (byte) numberOfEntries;
attributeNumber++;
}
}
// then we do the local variable attribute
if (codeStream.generateLocalVariableTableAttributes) {
int localVariableTableOffset = localContentsOffset;
int numberOfEntries = 0;
int localVariableNameIndex = constantPool.literalIndex(AttributeNamesConstants.LocalVariableTableName);
if (localContentsOffset + 8 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (localVariableNameIndex >> 8);
localContents[localContentsOffset++] = (byte) localVariableNameIndex;
localContentsOffset += 6; // leave space for attribute_length and local_variable_table_length
int nameIndex;
int descriptorIndex;
if (!codeStream.methodDeclaration.isStatic()) {
numberOfEntries++;
if (localContentsOffset + 10 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContentsOffset += 2; // the startPC for this is always 0
localContents[localContentsOffset++] = (byte) (code_length >> 8);
localContents[localContentsOffset++] = (byte) code_length;
nameIndex = constantPool.literalIndex(QualifiedNamesConstants.This);
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(codeStream.methodDeclaration.binding.declaringClass.signature());
localContents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
localContents[localContentsOffset++] = (byte) descriptorIndex;
localContentsOffset += 2; // the resolved position for this is always 0
}
for (int i = 0; i < codeStream.allLocalsCounter; i++) {
LocalVariableBinding localVariable = codeStream.locals[i];
for (int j = 0; j < localVariable.initializationCount; j++) {
int startPC = localVariable.initializationPCs[j << 1];
int endPC = localVariable.initializationPCs[(j << 1) + 1];
if (startPC != endPC) { // only entries for non zero length
int currentLength;
if (endPC == -1) {
localVariable.declaringScope.problemReporter().abortDueToInternalError(Util.bind("abort.invalidAttribute"/*nonNLS*/,new String(localVariable.name)), (AstNode) localVariable.declaringScope.methodScope().referenceContext);
}
if (localContentsOffset + 10 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// now we can safely add the local entry
numberOfEntries++;
localContents[localContentsOffset++] = (byte) (startPC >> 8);
localContents[localContentsOffset++] = (byte) startPC;
int length = endPC - startPC;
localContents[localContentsOffset++] = (byte) (length >> 8);
localContents[localContentsOffset++] = (byte) length;
nameIndex = constantPool.literalIndex(localVariable.name);
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(localVariable.type.signature());
localContents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
localContents[localContentsOffset++] = (byte) descriptorIndex;
int resolvedPosition = localVariable.resolvedPosition;
localContents[localContentsOffset++] = (byte) (resolvedPosition >> 8);
localContents[localContentsOffset++] = (byte) resolvedPosition;
}
}
}
int value = numberOfEntries * 10 + 2;
localVariableTableOffset += 2;
localContents[localVariableTableOffset++] = (byte) (value >> 24);
localContents[localVariableTableOffset++] = (byte) (value >> 16);
localContents[localVariableTableOffset++] = (byte) (value >> 8);
localContents[localVariableTableOffset++] = (byte) value;
localContents[localVariableTableOffset++] = (byte) (numberOfEntries >> 8);
localContents[localVariableTableOffset] = (byte) numberOfEntries;
attributeNumber++;
}
// update the number of attributes
// ensure first that there is enough space available inside the localContents array
if (codeAttributeAttributeOffset + 2 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[codeAttributeAttributeOffset++] = (byte) (attributeNumber >> 8);
localContents[codeAttributeAttributeOffset] = (byte) attributeNumber;
// update the attribute length
int codeAttributeLength = localContentsOffset - (codeAttributeOffset + 6);
localContents[codeAttributeOffset + 2] = (byte) (codeAttributeLength >> 24);
localContents[codeAttributeOffset + 3] = (byte) (codeAttributeLength >> 16);
localContents[codeAttributeOffset + 4] = (byte) (codeAttributeLength >> 8);
localContents[codeAttributeOffset + 5] = (byte) codeAttributeLength;
contentsOffset = localContentsOffset;
}
/**
* INTERNAL USE-ONLY
* That method completes the creation of the code attribute by setting
* - the attribute_length
* - max_stack
* - max_locals
* - code_length
* - exception table
* - and debug attributes if necessary.
*
* @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
* @param codeAttributeOffset <CODE>int</CODE>
*/
public void completeCodeAttributeForClinit(int codeAttributeOffset) {
// reinitialize the contents with the byte modified by the code stream
byte[] localContents = contents = codeStream.bCodeStream;
int localContentsOffset = codeStream.classFileOffset;
// codeAttributeOffset is the position inside contents byte array before we started to write
// any information about the codeAttribute
// That means that to write the attribute_length you need to offset by 2 the value of codeAttributeOffset
// to get the right position, 6 for the max_stack etc...
int contentsLength;
int code_length = codeStream.position;
if (code_length > 65535) {
codeStream.methodDeclaration.scope.problemReporter().bytecodeExceeds64KLimit(codeStream.methodDeclaration.scope.referenceType());
}
if (localContentsOffset + 20 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int max_stack = codeStream.stackMax;
localContents[codeAttributeOffset + 6] = (byte) (max_stack >> 8);
localContents[codeAttributeOffset + 7] = (byte) max_stack;
int max_locals = codeStream.maxLocals;
localContents[codeAttributeOffset + 8] = (byte) (max_locals >> 8);
localContents[codeAttributeOffset + 9] = (byte) max_locals;
localContents[codeAttributeOffset + 10] = (byte) (code_length >> 24);
localContents[codeAttributeOffset + 11] = (byte) (code_length >> 16);
localContents[codeAttributeOffset + 12] = (byte) (code_length >> 8);
localContents[codeAttributeOffset + 13] = (byte) code_length;
// write the exception table
int exceptionHandlersNumber = codeStream.exceptionHandlersNumber;
ExceptionLabel[] exceptionHandlers = codeStream.exceptionHandlers;
int exSize;
if (localContentsOffset + (exSize = (exceptionHandlersNumber * 8 + 2)) >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + (exSize > INCREMENT_SIZE ? exSize : INCREMENT_SIZE)]), 0, contentsLength);
}
// there is no exception table, so we need to offset by 2 the current offset and move
// on the attribute generation
localContents[localContentsOffset++] = (byte) (exceptionHandlersNumber >> 8);
localContents[localContentsOffset++] = (byte) exceptionHandlersNumber;
for (int i = 0; i < exceptionHandlersNumber; i++) {
ExceptionLabel exceptionHandler = exceptionHandlers[i];
int start = exceptionHandler.start;
localContents[localContentsOffset++] = (byte) (start >> 8);
localContents[localContentsOffset++] = (byte) start;
int end = exceptionHandler.end;
localContents[localContentsOffset++] = (byte) (end >> 8);
localContents[localContentsOffset++] = (byte) end;
int handlerPC = exceptionHandler.position;
localContents[localContentsOffset++] = (byte) (handlerPC >> 8);
localContents[localContentsOffset++] = (byte) handlerPC;
if (exceptionHandler.exceptionType == null) {
// any exception handler
localContentsOffset += 2;
} else {
int nameIndex;
if (exceptionHandler.exceptionType == TypeBinding.NullBinding) {
/* represents denote ClassNotFoundException, see class literal access*/
nameIndex = constantPool.literalIndexForJavaLangClassNotFoundException();
} else {
nameIndex = constantPool.literalIndex(exceptionHandler.exceptionType);
}
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
}
}
// debug attributes
int codeAttributeAttributeOffset = localContentsOffset;
int attributeNumber = 0;
// leave two bytes for the attribute_length
localContentsOffset += 2;
// first we handle the linenumber attribute
if (codeStream.generateLineNumberAttributes) {
/* Create and add the line number attribute (used for debugging)
* Build the pairs of:
* (bytecodePC lineNumber)
* according to the table of start line indexes and the pcToSourceMap table
* contained into the codestream
*/
int[] pcToSourceMapTable;
if (((pcToSourceMapTable = codeStream.pcToSourceMap) != null) && (codeStream.pcToSourceMapSize != 0)) {
int lineNumberNameIndex = constantPool.literalIndex(AttributeNamesConstants.LineNumberTableName);
if (localContentsOffset + 8 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (lineNumberNameIndex >> 8);
localContents[localContentsOffset++] = (byte) lineNumberNameIndex;
int lineNumberTableOffset = localContentsOffset;
localContentsOffset += 6; // leave space for attribute_length and line_number_table_length
int numberOfEntries = 0;
int length = codeStream.pcToSourceMapSize;
for (int i = 0; i < length;) {
// write the entry
if (localContentsOffset + 4 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int pc = pcToSourceMapTable[i++];
localContents[localContentsOffset++] = (byte) (pc >> 8);
localContents[localContentsOffset++] = (byte) pc;
int lineNumber = pcToSourceMapTable[i++];
localContents[localContentsOffset++] = (byte) (lineNumber >> 8);
localContents[localContentsOffset++] = (byte) lineNumber;
numberOfEntries++;
}
// now we change the size of the line number attribute
int lineNumberAttr_length = numberOfEntries * 4 + 2;
localContents[lineNumberTableOffset++] = (byte) (lineNumberAttr_length >> 24);
localContents[lineNumberTableOffset++] = (byte) (lineNumberAttr_length >> 16);
localContents[lineNumberTableOffset++] = (byte) (lineNumberAttr_length >> 8);
localContents[lineNumberTableOffset++] = (byte) lineNumberAttr_length;
localContents[lineNumberTableOffset++] = (byte) (numberOfEntries >> 8);
localContents[lineNumberTableOffset++] = (byte) numberOfEntries;
attributeNumber++;
}
}
// then we do the local variable attribute
if (codeStream.generateLocalVariableTableAttributes) {
int localVariableTableOffset = localContentsOffset;
int numberOfEntries = 0;
// codeAttribute.addLocalVariableTableAttribute(this);
if ((codeStream.pcToSourceMap != null) && (codeStream.pcToSourceMapSize != 0)) {
int localVariableNameIndex = constantPool.literalIndex(AttributeNamesConstants.LocalVariableTableName);
if (localContentsOffset + 8 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (localVariableNameIndex >> 8);
localContents[localContentsOffset++] = (byte) localVariableNameIndex;
localContentsOffset += 6; // leave space for attribute_length and local_variable_table_length
int nameIndex;
int descriptorIndex;
for (int i = 0; i < codeStream.allLocalsCounter; i++) {
LocalVariableBinding localVariable = codeStream.locals[i];
for (int j = 0; j < localVariable.initializationCount; j++) {
int startPC = localVariable.initializationPCs[j << 1];
int endPC = localVariable.initializationPCs[ (j << 1) + 1];
if (startPC != endPC) { // only entries for non zero length
int currentLength;
if (endPC == -1) {
localVariable.declaringScope.problemReporter().abortDueToInternalError(Util.bind("abort.invalidAttribute"/*nonNLS*/,new String(localVariable.name)), (AstNode) localVariable.declaringScope.methodScope().referenceContext);
}
if (localContentsOffset + 10 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// now we can safely add the local entry
numberOfEntries++;
localContents[localContentsOffset++] = (byte) (startPC >> 8);
localContents[localContentsOffset++] = (byte) startPC;
int length = endPC - startPC;
localContents[localContentsOffset++] = (byte) (length >> 8);
localContents[localContentsOffset++] = (byte) length;
nameIndex = constantPool.literalIndex(localVariable.name);
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(localVariable.type.signature());
localContents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
localContents[localContentsOffset++] = (byte) descriptorIndex;
int resolvedPosition = localVariable.resolvedPosition;
localContents[localContentsOffset++] = (byte) (resolvedPosition >> 8);
localContents[localContentsOffset++] = (byte) resolvedPosition;
}
}
}
int value = numberOfEntries * 10 + 2;
localVariableTableOffset += 2;
localContents[localVariableTableOffset++] = (byte) (value >> 24);
localContents[localVariableTableOffset++] = (byte) (value >> 16);
localContents[localVariableTableOffset++] = (byte) (value >> 8);
localContents[localVariableTableOffset++] = (byte) value;
localContents[localVariableTableOffset++] = (byte) (numberOfEntries >> 8);
localContents[localVariableTableOffset] = (byte) numberOfEntries;
attributeNumber++;
}
}
// update the number of attributes
// ensure first that there is enough space available inside the contents array
if (codeAttributeAttributeOffset + 2 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[codeAttributeAttributeOffset++] = (byte) (attributeNumber >> 8);
localContents[codeAttributeAttributeOffset] = (byte) attributeNumber;
// update the attribute length
int codeAttributeLength = localContentsOffset - (codeAttributeOffset + 6);
localContents[codeAttributeOffset + 2] = (byte) (codeAttributeLength >> 24);
localContents[codeAttributeOffset + 3] = (byte) (codeAttributeLength >> 16);
localContents[codeAttributeOffset + 4] = (byte) (codeAttributeLength >> 8);
localContents[codeAttributeOffset + 5] = (byte) codeAttributeLength;
contentsOffset = localContentsOffset;
}
/**
* INTERNAL USE-ONLY
* That method completes the creation of the code attribute by setting
* - the attribute_length
* - max_stack
* - max_locals
* - code_length
* - exception table
* - and debug attributes if necessary.
*
* @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
* @param codeAttributeOffset <CODE>int</CODE>
* @param exceptionHandler int[]
* @param startIndexes int[]
*/
public void completeCodeAttributeForClinit(int codeAttributeOffset, int[] exceptionHandler, int[] startLineIndexes) {
// reinitialize the contents with the byte modified by the code stream
byte[] localContents = contents = codeStream.bCodeStream;
int localContentsOffset = codeStream.classFileOffset;
// codeAttributeOffset is the position inside contents byte array before we started to write
// any information about the codeAttribute
// That means that to write the attribute_length you need to offset by 2 the value of codeAttributeOffset
// to get the right position, 6 for the max_stack etc...
int contentsLength;
int code_length = codeStream.position;
if (code_length > 65535) {
codeStream.methodDeclaration.scope.problemReporter().bytecodeExceeds64KLimit(codeStream.methodDeclaration.scope.referenceType());
}
if (localContentsOffset + 20 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int max_stack = codeStream.stackMax;
localContents[codeAttributeOffset + 6] = (byte) (max_stack >> 8);
localContents[codeAttributeOffset + 7] = (byte) max_stack;
int max_locals = codeStream.maxLocals;
localContents[codeAttributeOffset + 8] = (byte) (max_locals >> 8);
localContents[codeAttributeOffset + 9] = (byte) max_locals;
localContents[codeAttributeOffset + 10] = (byte) (code_length >> 24);
localContents[codeAttributeOffset + 11] = (byte) (code_length >> 16);
localContents[codeAttributeOffset + 12] = (byte) (code_length >> 8);
localContents[codeAttributeOffset + 13] = (byte) code_length;
// write the exception table
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 1;
int start = exceptionHandler[0];
localContents[localContentsOffset++] = (byte) (start >> 8);
localContents[localContentsOffset++] = (byte) start;
int end = exceptionHandler[1];
localContents[localContentsOffset++] = (byte) (end >> 8);
localContents[localContentsOffset++] = (byte) end;
int handlerPC = exceptionHandler[2];
localContents[localContentsOffset++] = (byte) (handlerPC >> 8);
localContents[localContentsOffset++] = (byte) handlerPC;
int nameIndex = constantPool.literalIndexForJavaLangException();
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
// debug attributes
int codeAttributeAttributeOffset = localContentsOffset;
int attributeNumber = 0; // leave two bytes for the attribute_length
localContentsOffset += 2; // first we handle the linenumber attribute
// first we handle the linenumber attribute
if (codeStream.generateLineNumberAttributes) {
/* Create and add the line number attribute (used for debugging)
* Build the pairs of:
* (bytecodePC lineNumber)
* according to the table of start line indexes and the pcToSourceMap table
* contained into the codestream
*/
int index = 0, max = startLineIndexes.length;
int lineNumberNameIndex = constantPool.literalIndex(AttributeNamesConstants.LineNumberTableName);
localContents[localContentsOffset++] = (byte) (lineNumberNameIndex >> 8);
localContents[localContentsOffset++] = (byte) lineNumberNameIndex;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 6;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 1;
// first entry at pc = 0
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = (byte) (problemLine >> 8);
localContents[localContentsOffset++] = (byte) problemLine;
// now we change the size of the line number attribute
attributeNumber++;
}
// then we do the local variable attribute
if (codeStream.generateLocalVariableTableAttributes) {
int localVariableNameIndex = constantPool.literalIndex(AttributeNamesConstants.LocalVariableTableName);
if (localContentsOffset + 8 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (localVariableNameIndex >> 8);
localContents[localContentsOffset++] = (byte) localVariableNameIndex;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 2;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
attributeNumber++;
}
// update the number of attributes
// ensure first that there is enough space available inside the contents array
if (codeAttributeAttributeOffset + 2 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[codeAttributeAttributeOffset++] = (byte) (attributeNumber >> 8);
localContents[codeAttributeAttributeOffset] = (byte) attributeNumber;
// update the attribute length
int codeAttributeLength = localContentsOffset - (codeAttributeOffset + 6);
localContents[codeAttributeOffset + 2] = (byte) (codeAttributeLength >> 24);
localContents[codeAttributeOffset + 3] = (byte) (codeAttributeLength >> 16);
localContents[codeAttributeOffset + 4] = (byte) (codeAttributeLength >> 8);
localContents[codeAttributeOffset + 5] = (byte) codeAttributeLength;
contentsOffset = localContentsOffset;
}
/**
* INTERNAL USE-ONLY
* That method completes the creation of the code attribute by setting
* - the attribute_length
* - max_stack
* - max_locals
* - code_length
* - exception table
* - and debug attributes if necessary.
*
* @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
* @param codeAttributeOffset <CODE>int</CODE>
* @param exceptionHandler int[]
*/
public void completeCodeAttributeForProblemMethod(AbstractMethodDeclaration method, MethodBinding binding, int codeAttributeOffset, int[] exceptionHandler, int[] startLineIndexes) {
// reinitialize the localContents with the byte modified by the code stream
byte[] localContents = contents = codeStream.bCodeStream;
int localContentsOffset = codeStream.classFileOffset;
// codeAttributeOffset is the position inside localContents byte array before we started to write// any information about the codeAttribute// That means that to write the attribute_length you need to offset by 2 the value of codeAttributeOffset// to get the right position, 6 for the max_stack etc...
int max_stack = codeStream.stackMax;
localContents[codeAttributeOffset + 6] = (byte) (max_stack >> 8);
localContents[codeAttributeOffset + 7] = (byte) max_stack;
int max_locals = codeStream.maxLocals;
localContents[codeAttributeOffset + 8] = (byte) (max_locals >> 8);
localContents[codeAttributeOffset + 9] = (byte) max_locals;
int code_length = codeStream.position;
localContents[codeAttributeOffset + 10] = (byte) (code_length >> 24);
localContents[codeAttributeOffset + 11] = (byte) (code_length >> 16);
localContents[codeAttributeOffset + 12] = (byte) (code_length >> 8);
localContents[codeAttributeOffset + 13] = (byte) code_length;
// write the exception table
int contentsLength;
if (localContentsOffset + 50 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 1;
int start = exceptionHandler[0];
localContents[localContentsOffset++] = (byte) (start >> 8);
localContents[localContentsOffset++] = (byte) start;
int end = exceptionHandler[1];
localContents[localContentsOffset++] = (byte) (end >> 8);
localContents[localContentsOffset++] = (byte) end;
int handlerPC = exceptionHandler[2];
localContents[localContentsOffset++] = (byte) (handlerPC >> 8);
localContents[localContentsOffset++] = (byte) handlerPC;
int nameIndex = constantPool.literalIndexForJavaLangException();
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex; // debug attributes
int codeAttributeAttributeOffset = localContentsOffset;
int attributeNumber = 0; // leave two bytes for the attribute_length
localContentsOffset += 2; // first we handle the linenumber attribute
if (codeStream.generateLineNumberAttributes) {
/* Create and add the line number attribute (used for debugging)
* Build the pairs of:
* (bytecodePC lineNumber)
* according to the table of start line indexes and the pcToSourceMap table
* contained into the codestream
*/
int lineNumberNameIndex = constantPool.literalIndex(AttributeNamesConstants.LineNumberTableName);
localContents[localContentsOffset++] = (byte) (lineNumberNameIndex >> 8);
localContents[localContentsOffset++] = (byte) lineNumberNameIndex;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 6;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 1;
if (problemLine == 0) {
problemLine = searchLineNumber(startLineIndexes, binding.sourceStart());
}
// first entry at pc = 0
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = (byte) (problemLine >> 8);
localContents[localContentsOffset++] = (byte) problemLine;
// now we change the size of the line number attribute
attributeNumber++;
}
// then we do the local variable attribute
if (codeStream.generateLocalVariableTableAttributes) {
// compute the resolved position for the arguments of the method
int argSize;
int localVariableTableOffset = localContentsOffset;
int numberOfEntries = 0;
// codeAttribute.addLocalVariableTableAttribute(this);
int localVariableNameIndex = constantPool.literalIndex(AttributeNamesConstants.LocalVariableTableName);
if (localContentsOffset + 8 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = (byte) (localVariableNameIndex >> 8);
localContents[localContentsOffset++] = (byte) localVariableNameIndex;
localContentsOffset += 6; // leave space for attribute_length and local_variable_table_length
int descriptorIndex;
if (!codeStream.methodDeclaration.isStatic()) {
numberOfEntries++;
if (localContentsOffset + 10 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = (byte) (code_length >> 8);
localContents[localContentsOffset++] = (byte) code_length;
nameIndex = constantPool.literalIndex(QualifiedNamesConstants.This);
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(codeStream.methodDeclaration.binding.declaringClass.signature());
localContents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
localContents[localContentsOffset++] = (byte) descriptorIndex;
// the resolved position for this is always 0
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
}
if (binding.isConstructor()) {
ReferenceBinding declaringClass = binding.declaringClass;
if (declaringClass.isNestedType()) {
NestedTypeBinding methodDeclaringClass = (NestedTypeBinding) declaringClass;
argSize = methodDeclaringClass.syntheticArgumentsOffset;
SyntheticArgumentBinding[] syntheticArguments;
if ((syntheticArguments = methodDeclaringClass.syntheticEnclosingInstances()) != null) {
for (int i = 0, max = syntheticArguments.length; i < max; i++) {
LocalVariableBinding localVariable = syntheticArguments[i];
int currentLength;
if (localContentsOffset + 10 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// now we can safely add the local entry
numberOfEntries++;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = (byte) (code_length >> 8);
localContents[localContentsOffset++] = (byte) code_length;
nameIndex = constantPool.literalIndex(localVariable.name);
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(localVariable.type.signature());
localContents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
localContents[localContentsOffset++] = (byte) descriptorIndex;
int resolvedPosition = localVariable.resolvedPosition;
localContents[localContentsOffset++] = (byte) (resolvedPosition >> 8);
localContents[localContentsOffset++] = (byte) resolvedPosition;
}
}
} else {
argSize = 1;
}
} else {
argSize = binding.isStatic() ? 0 : 1;
}
if (method.binding != null) {
TypeBinding[] parameters = method.binding.parameters;
Argument[] arguments = method.arguments;
if ((parameters != null) && (arguments != null)) {
for (int i = 0, max = parameters.length; i < max; i++) {
TypeBinding argumentBinding = parameters[i];
int currentLength;
if (localContentsOffset + 10 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// now we can safely add the local entry
numberOfEntries++;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = 0;
localContents[localContentsOffset++] = (byte) (code_length >> 8);
localContents[localContentsOffset++] = (byte) code_length;
nameIndex = constantPool.literalIndex(arguments[i].name);
localContents[localContentsOffset++] = (byte) (nameIndex >> 8);
localContents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(argumentBinding.signature());
localContents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
localContents[localContentsOffset++] = (byte) descriptorIndex;
int resolvedPosition = argSize;
if ((argumentBinding == TypeBinding.LongBinding) || (argumentBinding == TypeBinding.DoubleBinding))
argSize += 2;
else
argSize++;
localContents[localContentsOffset++] = (byte) (resolvedPosition >> 8);
localContents[localContentsOffset++] = (byte) resolvedPosition;
}
}
}
int value = numberOfEntries * 10 + 2;
localVariableTableOffset += 2;
localContents[localVariableTableOffset++] = (byte) (value >> 24);
localContents[localVariableTableOffset++] = (byte) (value >> 16);
localContents[localVariableTableOffset++] = (byte) (value >> 8);
localContents[localVariableTableOffset++] = (byte) value;
localContents[localVariableTableOffset++] = (byte) (numberOfEntries >> 8);
localContents[localVariableTableOffset] = (byte) numberOfEntries;
attributeNumber++;
}
// update the number of attributes// ensure first that there is enough space available inside the localContents array
if (codeAttributeAttributeOffset + 2 >= (contentsLength = localContents.length)) {
System.arraycopy(contents, 0, (localContents = contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
localContents[codeAttributeAttributeOffset++] = (byte) (attributeNumber >> 8);
localContents[codeAttributeAttributeOffset] = (byte) attributeNumber;
// update the attribute length
int codeAttributeLength = localContentsOffset - (codeAttributeOffset + 6);
localContents[codeAttributeOffset + 2] = (byte) (codeAttributeLength >> 24);
localContents[codeAttributeOffset + 3] = (byte) (codeAttributeLength >> 16);
localContents[codeAttributeOffset + 4] = (byte) (codeAttributeLength >> 8);
localContents[codeAttributeOffset + 5] = (byte) codeAttributeLength;
contentsOffset = localContentsOffset;
}
/**
* INTERNAL USE-ONLY
* That method completes the creation of the code attribute by setting
* - the attribute_length
* - max_stack
* - max_locals
* - code_length
* - exception table
* - and debug attributes if necessary.
*
* @param binding org.eclipse.jdt.internal.compiler.lookup.SyntheticAccessMethodBinding
* @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
* @param codeAttributeOffset <CODE>int</CODE>
*/
public void completeCodeAttributeForSyntheticAccessMethod(SyntheticAccessMethodBinding binding, int codeAttributeOffset, int[] startLineIndexes) {
// reinitialize the contents with the byte modified by the code stream
contents = codeStream.bCodeStream;
int localContentsOffset = codeStream.classFileOffset;
// codeAttributeOffset is the position inside contents byte array before we started to write
// any information about the codeAttribute
// That means that to write the attribute_length you need to offset by 2 the value of codeAttributeOffset
// to get the right position, 6 for the max_stack etc...
int max_stack = codeStream.stackMax;
contents[codeAttributeOffset + 6] = (byte) (max_stack >> 8);
contents[codeAttributeOffset + 7] = (byte) max_stack;
int max_locals = codeStream.maxLocals;
contents[codeAttributeOffset + 8] = (byte) (max_locals >> 8);
contents[codeAttributeOffset + 9] = (byte) max_locals;
int code_length = codeStream.position;
contents[codeAttributeOffset + 10] = (byte) (code_length >> 24);
contents[codeAttributeOffset + 11] = (byte) (code_length >> 16);
contents[codeAttributeOffset + 12] = (byte) (code_length >> 8);
contents[codeAttributeOffset + 13] = (byte) code_length;
int contentsLength;
if ((localContentsOffset + 40) >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// there is no exception table, so we need to offset by 2 the current offset and move
// on the attribute generation
localContentsOffset += 2;
// debug attributes
int codeAttributeAttributeOffset = localContentsOffset;
int attributeNumber = 0;
// leave two bytes for the attribute_length
localContentsOffset += 2;
// first we handle the linenumber attribute
if (codeStream.generateLineNumberAttributes) {
int index = 0, max = startLineIndexes.length;
int lineNumberNameIndex = constantPool.literalIndex(AttributeNamesConstants.LineNumberTableName);
contents[localContentsOffset++] = (byte) (lineNumberNameIndex >> 8);
contents[localContentsOffset++] = (byte) lineNumberNameIndex;
int lineNumberTableOffset = localContentsOffset;
localContentsOffset += 6; // leave space for attribute_length and line_number_table_length
// Seems like do would be better, but this preserves the existing behavior.
index = searchLineNumber(startLineIndexes, binding.sourceStart);
contents[localContentsOffset++] = 0;
contents[localContentsOffset++] = 0;
contents[localContentsOffset++] = (byte) (index >> 8);
contents[localContentsOffset++] = (byte) index;
// now we change the size of the line number attribute
contents[lineNumberTableOffset++] = 0;
contents[lineNumberTableOffset++] = 0;
contents[lineNumberTableOffset++] = 0;
contents[lineNumberTableOffset++] = 6;
contents[lineNumberTableOffset++] = 0;
contents[lineNumberTableOffset++] = 1;
attributeNumber++;
}
// then we do the local variable attribute
if (codeStream.generateLocalVariableTableAttributes) {
int localVariableTableOffset = localContentsOffset;
int numberOfEntries = 0;
int localVariableNameIndex = constantPool.literalIndex(AttributeNamesConstants.LocalVariableTableName);
if (localContentsOffset + 8 > (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
contents[localContentsOffset++] = (byte) (localVariableNameIndex >> 8);
contents[localContentsOffset++] = (byte) localVariableNameIndex;
localContentsOffset += 6; // leave space for attribute_length and local_variable_table_length
int nameIndex;
int descriptorIndex;
for (int i = 0; i < codeStream.allLocalsCounter; i++) {
LocalVariableBinding localVariable = codeStream.locals[i];
for (int j = 0; j < localVariable.initializationCount; j++) {
int startPC = localVariable.initializationPCs[j << 1];
int endPC = localVariable.initializationPCs[(j << 1) + 1];
if (startPC != endPC) { // only entries for non zero length
int currentLength;
if (endPC == -1) {
localVariable.declaringScope.problemReporter().abortDueToInternalError(Util.bind("abort.invalidAttribute"/*nonNLS*/,new String(localVariable.name)), (AstNode) localVariable.declaringScope.methodScope().referenceContext);
}
if (localContentsOffset + 10 > (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
// now we can safely add the local entry
numberOfEntries++;
contents[localContentsOffset++] = (byte) (startPC >> 8);
contents[localContentsOffset++] = (byte) startPC;
int length = endPC - startPC;
contents[localContentsOffset++] = (byte) (length >> 8);
contents[localContentsOffset++] = (byte) length;
nameIndex = constantPool.literalIndex(localVariable.name);
contents[localContentsOffset++] = (byte) (nameIndex >> 8);
contents[localContentsOffset++] = (byte) nameIndex;
descriptorIndex = constantPool.literalIndex(localVariable.type.signature());
contents[localContentsOffset++] = (byte) (descriptorIndex >> 8);
contents[localContentsOffset++] = (byte) descriptorIndex;
int resolvedPosition = localVariable.resolvedPosition;
contents[localContentsOffset++] = (byte) (resolvedPosition >> 8);
contents[localContentsOffset++] = (byte) resolvedPosition;
}
}
}
int value = numberOfEntries * 10 + 2;
localVariableTableOffset += 2;
contents[localVariableTableOffset++] = (byte) (value >> 24);
contents[localVariableTableOffset++] = (byte) (value >> 16);
contents[localVariableTableOffset++] = (byte) (value >> 8);
contents[localVariableTableOffset++] = (byte) value;
contents[localVariableTableOffset++] = (byte) (numberOfEntries >> 8);
contents[localVariableTableOffset] = (byte) numberOfEntries;
attributeNumber++;
}
// update the number of attributes
// ensure first that there is enough space available inside the contents array
if (codeAttributeAttributeOffset + 2 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
contents[codeAttributeAttributeOffset++] = (byte) (attributeNumber >> 8);
contents[codeAttributeAttributeOffset] = (byte) attributeNumber;
// update the attribute length
int codeAttributeLength = localContentsOffset - (codeAttributeOffset + 6);
contents[codeAttributeOffset + 2] = (byte) (codeAttributeLength >> 24);
contents[codeAttributeOffset + 3] = (byte) (codeAttributeLength >> 16);
contents[codeAttributeOffset + 4] = (byte) (codeAttributeLength >> 8);
contents[codeAttributeOffset + 5] = (byte) codeAttributeLength;
contentsOffset = localContentsOffset;
}
/**
* INTERNAL USE-ONLY
* Complete the creation of a method info by setting up the number of attributes at the right offset.
*
* @param methodAttributeOffset <CODE>int</CODE>
* @param attributeNumber <CODE>int</CODE>
*/
public void completeMethodInfo(int methodAttributeOffset, int attributeNumber) {
// update the number of attributes
contents[methodAttributeOffset++] = (byte) (attributeNumber >> 8);
contents[methodAttributeOffset] = (byte) attributeNumber;
}
/*
* INTERNAL USE-ONLY
* Innerclasses get their name computed as they are generated, since some may not
* be actually outputed if sitting inside unreachable code.
*
* @param localType org.eclipse.jdt.internal.compiler.lookup.LocalTypeBinding
*/
public char[] computeConstantPoolName(LocalTypeBinding localType) {
if (localType.constantPoolName() != null) {
return localType.constantPoolName();
}
// delegates to the outermost enclosing classfile, since it is the only one with a global vision of its innertypes.
if (enclosingClassFile != null) {
return this.outerMostEnclosingClassFile().computeConstantPoolName(localType);
}
if (nameUsage == null) {
nameUsage = new CharArrayCache();
}
if (localType.isMemberType()) { // catches member types of local types
return CharOperation.concat(
localType.enclosingType().constantPoolName(),
localType.sourceName,
'$');
} else {
char[][] compoundName = (char[][]) referenceBinding.compoundName.clone();
int last = compoundName.length - 1;
StringBuffer nameBuffer = new StringBuffer().append(compoundName[last]);
// retrieve the number of use of the combination
char[] simpleName = localType.sourceName;
//if (simpleName == null) simpleName = new char[]{}; // for anonymous
int nameCount = nameUsage.get(simpleName); // -1 if not found
nameCount = nameCount == -1 ? 1 : nameCount + 1;
nameBuffer.append('$').append(nameCount);
nameUsage.put(simpleName, nameCount);
if (!localType.isAnonymousType()) { // named local type
nameBuffer.append('$').append(simpleName);
}
compoundName[last] = nameBuffer.toString().toCharArray();
return CharOperation.concatWith(compoundName, '/');
}
}
/**
* INTERNAL USE-ONLY
* Request the creation of a ClassFile compatible representation of a problematic type
*
* @param typeDeclaration org.eclipse.jdt.internal.compiler.ast.TypeDeclaration
* @param unitResult org.eclipse.jdt.internal.compiler.CompilationUnitResult
*/
public static void createProblemType(TypeDeclaration typeDeclaration, CompilationResult unitResult) {
SourceTypeBinding typeBinding = typeDeclaration.binding;
ClassFile classFile = new ClassFile(typeBinding, null, true);
// inner attributes
if (typeBinding.isMemberType())
classFile.recordEnclosingTypeAttributes(typeBinding);
// add its fields
FieldBinding[] fields = typeBinding.fields;
if ((fields != null) && (fields != NoFields)) {
for (int i = 0, max = fields.length; i < max; i++) {
if (fields[i].constant == null) {
FieldReference.getConstantFor(fields[i], false, null, 0);
}
}
classFile.addFieldInfos();
} else {
// we have to set the number of fields to be equals to 0
classFile.contents[classFile.contentsOffset++] = 0;
classFile.contents[classFile.contentsOffset++] = 0;
}
// leave some space for the methodCount
classFile.setForMethodInfos();
// add its user defined methods
MethodBinding[] methods = typeBinding.methods;
AbstractMethodDeclaration[] methodDeclarations = typeDeclaration.methods;
int maxMethodDecl = methodDeclarations == null ? 0 : methodDeclarations.length;
int problemsLength;
IProblem[] problems = unitResult.getProblems();
if (problems == null) {
problems = new IProblem[0];
}
IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
if (methods != null) {
if (typeBinding.isInterface()) {
// we cannot create problem methods for an interface. So we have to generate a clinit
// which should contain all the problem
classFile.addProblemClinit(problemsCopy);
for (int i = 0, max = methods.length; i < max; i++) {
MethodBinding methodBinding;
if ((methodBinding = methods[i]) != null) {
// find the corresponding method declaration
for (int j = 0; j < maxMethodDecl; j++) {
if ((methodDeclarations[j] != null) && (methodDeclarations[j].binding == methods[i])) {
if (!methodBinding.isConstructor()) {
classFile.addAbstractMethod(methodDeclarations[j], methodBinding);
}
break;
}
}
}
}
} else {
for (int i = 0, max = methods.length; i < max; i++) {
MethodBinding methodBinding;
if ((methodBinding = methods[i]) != null) {
// find the corresponding method declaration
for (int j = 0; j < maxMethodDecl; j++) {
if ((methodDeclarations[j] != null) && (methodDeclarations[j].binding == methods[i])) {
AbstractMethodDeclaration methodDecl;
if ((methodDecl = methodDeclarations[j]).isConstructor()) {
classFile.addProblemConstructor(methodDecl, methodBinding, problemsCopy);
} else {
classFile.addProblemMethod(methodDecl, methodBinding, problemsCopy);
}
break;
}
}
}
}
}
// add abstract methods
classFile.addDefaultAbstractMethods();
}
// propagate generation of (problem) member types
if (typeDeclaration.memberTypes != null) {
CompilationResult result = typeDeclaration.scope.referenceCompilationUnit().compilationResult;
for (int i = 0, max = typeDeclaration.memberTypes.length; i < max; i++) {
TypeDeclaration memberType = typeDeclaration.memberTypes[i];
if (memberType.binding != null) {
classFile.recordNestedMemberAttribute(memberType.binding);
ClassFile.createProblemType(memberType, unitResult);
}
}
}
classFile.addAttributes();
unitResult.record(typeBinding.constantPoolName(), classFile);
}
/**
* INTERNAL USE-ONLY
* This methods returns a char[] representing the file name of the receiver
*
* @return char[]
*/
public char[] fileName() {
return constantPool.UTF8Cache.returnKeyFor(1);
}
/**
* INTERNAL USE-ONLY
* That method generates the header of a code attribute.
* - the index inside the constant pool for the attribute name (i.e. Code)
* - leave some space for attribute_length(4), max_stack(2), max_locals(2), code_length(4).
*/
public void generateCodeAttributeHeader() {
int contentsLength;
if (contentsOffset + 20 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int constantValueNameIndex = constantPool.literalIndex(AttributeNamesConstants.CodeName);
contents[contentsOffset++] = (byte) (constantValueNameIndex >> 8);
contents[contentsOffset++] = (byte) constantValueNameIndex;
// leave space for attribute_length(4), max_stack(2), max_locals(2), code_length(4)
contentsOffset += 12;
}
/**
* INTERNAL USE-ONLY
* That method generates the attributes of a code attribute.
* They could be:
* - an exception attribute for each try/catch found inside the method
* - a deprecated attribute
* - a synthetic attribute for synthetic access methods
*
* It returns the number of attributes created for the code attribute.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.lookup.MethodBinding
* @return <CODE>int</CODE>
*/
public int generateMethodInfoAttribute(MethodBinding methodBinding) {
// leave two bytes for the attribute_number
contentsOffset += 2;
// now we can handle all the attribute for that method info:
// it could be:
// - a CodeAttribute
// - a ExceptionAttribute
// - a DeprecatedAttribute
// - a SyntheticAttribute
// Exception attribute
ReferenceBinding[] thrownsExceptions;
int contentsLength;
int attributeNumber = 0;
if ((thrownsExceptions = methodBinding.thrownExceptions) != NoExceptions) {
// The method has a throw clause. So we need to add an exception attribute
// check that there is enough space to write all the bytes for the exception attribute
int length = thrownsExceptions.length;
if (contentsOffset + (8 + length * 2) >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + Math.max(INCREMENT_SIZE, (8 + length * 2))]), 0, contentsLength);
}
int exceptionNameIndex = constantPool.literalIndex(AttributeNamesConstants.ExceptionsName);
contents[contentsOffset++] = (byte) (exceptionNameIndex >> 8);
contents[contentsOffset++] = (byte) exceptionNameIndex;
// The attribute length = length * 2 + 2 in case of a exception attribute
int attributeLength = length * 2 + 2;
contents[contentsOffset++] = (byte) (attributeLength >> 24);
contents[contentsOffset++] = (byte) (attributeLength >> 16);
contents[contentsOffset++] = (byte) (attributeLength >> 8);
contents[contentsOffset++] = (byte) attributeLength;
contents[contentsOffset++] = (byte) (length >> 8);
contents[contentsOffset++] = (byte) length;
for (int i = 0; i < length; i++) {
int exceptionIndex = constantPool.literalIndex(thrownsExceptions[i]);
contents[contentsOffset++] = (byte) (exceptionIndex >> 8);
contents[contentsOffset++] = (byte) exceptionIndex;
}
attributeNumber++;
}
// Deprecated attribute
// Check that there is enough space to write the deprecated attribute
if (contentsOffset + 6 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
if (methodBinding.isDeprecated()) {
int deprecatedAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.DeprecatedName);
contents[contentsOffset++] = (byte) (deprecatedAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) deprecatedAttributeNameIndex;
// the length of a deprecated attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
attributeNumber++;
}
// Synthetic attribute
// Check that there is enough space to write the deprecated attribute
if (contentsOffset + 6 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
if (methodBinding.isSynthetic()) {
int syntheticAttributeNameIndex = constantPool.literalIndex(AttributeNamesConstants.SyntheticName);
contents[contentsOffset++] = (byte) (syntheticAttributeNameIndex >> 8);
contents[contentsOffset++] = (byte) syntheticAttributeNameIndex;
// the length of a synthetic attribute is equals to 0
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 0;
attributeNumber++;
}
return attributeNumber;
}
/**
* INTERNAL USE-ONLY
* That method generates the header of a method info:
* The header consists in:
* - the access flags
* - the name index of the method name inside the constant pool
* - the descriptor index of the signature of the method inside the constant pool.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.lookup.MethodBinding
*/
public void generateMethodInfoHeader(MethodBinding methodBinding) {
// check that there is enough space to write all the bytes for the method info corresponding
// to the @methodBinding
int contentsLength;
methodCount++; // add one more method
if (contentsOffset + 10 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
int accessFlags = methodBinding.getAccessFlags();
if (methodBinding.isRequiredToClearPrivateModifier()) {
accessFlags &= ~AccPrivate;
}
contents[contentsOffset++] = (byte) (accessFlags >> 8);
contents[contentsOffset++] = (byte) accessFlags;
int nameIndex = constantPool.literalIndex(methodBinding.selector);
contents[contentsOffset++] = (byte) (nameIndex >> 8);
contents[contentsOffset++] = (byte) nameIndex;
int descriptorIndex = constantPool.literalIndex(methodBinding.signature());
contents[contentsOffset++] = (byte) (descriptorIndex >> 8);
contents[contentsOffset++] = (byte) descriptorIndex;
}
/**
* INTERNAL USE-ONLY
* That method generates the method info header of a clinit:
* The header consists in:
* - the access flags (always default access + static)
* - the name index of the method name (always <clinit>) inside the constant pool
* - the descriptor index of the signature (always ()V) of the method inside the constant pool.
*
* @param methodBinding org.eclipse.jdt.internal.compiler.lookup.MethodBinding
*/
public void generateMethodInfoHeaderForClinit() {
// check that there is enough space to write all the bytes for the method info corresponding
// to the @methodBinding
int contentsLength;
methodCount++; // add one more method
if (contentsOffset + 10 >= (contentsLength = contents.length)) {
System.arraycopy(contents, 0, (contents = new byte[contentsLength + INCREMENT_SIZE]), 0, contentsLength);
}
contents[contentsOffset++] = (byte) ((AccDefault | AccStatic) >> 8);
contents[contentsOffset++] = (byte) (AccDefault | AccStatic);
int nameIndex = constantPool.literalIndex(QualifiedNamesConstants.Clinit);
contents[contentsOffset++] = (byte) (nameIndex >> 8);
contents[contentsOffset++] = (byte) nameIndex;
int descriptorIndex = constantPool.literalIndex(QualifiedNamesConstants.ClinitSignature);
contents[contentsOffset++] = (byte) (descriptorIndex >> 8);
contents[contentsOffset++] = (byte) descriptorIndex;
// We know that we won't get more than 1 attribute: the code attribute
contents[contentsOffset++] = 0;
contents[contentsOffset++] = 1;
}
/**
* EXTERNAL API
* Answer the actual bytes of the class file
*
* This method encodes the receiver structure into a byte array which is the content of the classfile.
* Returns the byte array that represents the encoded structure of the receiver.
*
* @return byte[]
*/
public byte[] getBytes() {
byte[] fullContents = new byte[headerOffset + contentsOffset];
System.arraycopy(header, 0, fullContents, 0, headerOffset);
System.arraycopy(contents, 0, fullContents, headerOffset, contentsOffset);
return fullContents;
}
/**
* EXTERNAL API
* Answer the compound name of the class file.
* @return char[][]
* e.g. {{java}, {util}, {Hashtable}}.
*/
public char[][] getCompoundName() {
return CharOperation.splitOn('/', fileName());
}
/**
* EXTERNAL API
* Answer a smaller byte format, which is only contains some structural information.
*
* Those bytes are decodable with a regular class file reader, such as:
* DietClassFileReader
*/
public byte[] getReducedBytes() {
return getBytes(); // might be improved
}
/**
* INTERNAL USE-ONLY
* Returns the most enclosing classfile of the receiver. This is used know to store the constant pool name
* for all inner types of the receiver.
* @return org.eclipse.jdt.internal.compiler.codegen.ClassFile
*/
public ClassFile outerMostEnclosingClassFile() {
ClassFile current = this;
while (current.enclosingClassFile != null)
current = current.enclosingClassFile;
return current;
}
/**
* INTERNAL USE-ONLY
* This is used to store a new inner class. It checks that the binding @binding doesn't already exist inside the
* collection of inner classes. Add all the necessary classes in the right order to fit to the specifications.
*
* @param binding org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding
*/
public void recordEnclosingTypeAttributes(ReferenceBinding binding) {
// add all the enclosing types
ReferenceBinding enclosingType = referenceBinding.enclosingType();
int depth = 0;
while (enclosingType != null) {
depth++;
enclosingType = enclosingType.enclosingType();
}
enclosingType = referenceBinding;
ReferenceBinding enclosingTypes[];
if (depth >= 2) {
enclosingTypes = new ReferenceBinding[depth];
for (int i = depth - 1; i >= 0; i--) {
enclosingTypes[i] = enclosingType;
enclosingType = enclosingType.enclosingType();
}
for (int i = 0; i < depth; i++) {
addInnerClasses(enclosingTypes[i]);
}
} else {
addInnerClasses(referenceBinding);
}
}
/**
* INTERNAL USE-ONLY
* This is used to store a new inner class. It checks that the binding @binding doesn't already exist inside the
* collection of inner classes. Add all the necessary classes in the right order to fit to the specifications.
*
* @param binding org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding
*/
public void recordNestedLocalAttribute(ReferenceBinding binding) {
// add all the enclosing types
ReferenceBinding enclosingType = referenceBinding.enclosingType();
int depth = 0;
while (enclosingType != null) {
depth++;
enclosingType = enclosingType.enclosingType();
}
enclosingType = referenceBinding;
ReferenceBinding enclosingTypes[];
if (depth >= 2) {
enclosingTypes = new ReferenceBinding[depth];
for (int i = depth - 1; i >= 0; i--) {
enclosingTypes[i] = enclosingType;
enclosingType = enclosingType.enclosingType();
}
for (int i = 0; i < depth; i++)
addInnerClasses(enclosingTypes[i]);
} else {
addInnerClasses(binding);
}
}
/**
* INTERNAL USE-ONLY
* This is used to store a new inner class. It checks that the binding @binding doesn't already exist inside the
* collection of inner classes. Add all the necessary classes in the right order to fit to the specifications.
*
* @param binding org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding
*/
public void recordNestedMemberAttribute(ReferenceBinding binding) {
addInnerClasses(binding);
}
/**
* INTERNAL USE-ONLY
* Search the line number corresponding to a specific position
*
* @param methodBinding org.eclipse.jdt.internal.compiler.nameloopkup.SyntheticAccessMethodBinding
*/
public static final int searchLineNumber(int[] startLineIndexes, int position) {
// this code is completely useless, but it is the same implementation than
// org.eclipse.jdt.internal.compiler.problem.ProblemHandler.searchLineNumber(int[], int)
// if (startLineIndexes == null)
// return 1;
int length = startLineIndexes.length;
if (length == 0)
return 1;
int g = 0, d = length - 1;
int m = 0;
while (g <= d) {
m = (g + d) /2;
if (position < startLineIndexes[m]) {
d = m-1;
} else if (position > startLineIndexes[m]) {
g = m+1;
} else {
return m + 1;
}
}
if (position < startLineIndexes[m]) {
return m+1;
}
return m+2;
}
/**
* INTERNAL USE-ONLY
* This methods leaves the space for method counts recording.
*/
public void setForMethodInfos() {
// leave some space for the methodCount
methodCountOffset = contentsOffset;
contentsOffset += 2;
}
/**
* INTERNAL USE-ONLY
* outputPath is formed like:
* c:\temp\ the last character is a file separator
* relativeFileName is formed like:
* java\lang\String.class
* @param fileName java.lang.String
* @param content byte[]
*/
public static void writeToDisk(String outputPath, String relativeFileName, byte[] contents) throws IOException {
String fileName;
File file;
FileOutputStream output = new FileOutputStream(file = new File((fileName = buildAllDirectoriesInto(outputPath, relativeFileName))));
output.write(contents);
output.flush();
output.close();
}
}