Java Code Examples for org.eclipse.jdt.core.compiler.CharOperation#concat()

public char[] computeUniqueKey(boolean isLeaf) {
char[] genericTypeKey = this.genericType.computeUniqueKey(false/*not a leaf*/);
char[] wildCardKey;
// We now encode the rank also in the binding key - https://bugs.eclipse.org/bugs/show_bug.cgi?id=234609
char[] rankComponent = ('{' + String.valueOf(this.rank) + '}').toCharArray();
      switch (this.boundKind) {
          case Wildcard.UNBOUND :
              wildCardKey = TypeConstants.WILDCARD_STAR;
              break;
          case Wildcard.EXTENDS :
              wildCardKey = CharOperation.concat(TypeConstants.WILDCARD_PLUS, this.bound.computeUniqueKey(false/*not a leaf*/));
              break;
	default: // SUPER
	    wildCardKey = CharOperation.concat(TypeConstants.WILDCARD_MINUS, this.bound.computeUniqueKey(false/*not a leaf*/));
		break;
      }
return CharOperation.concat(genericTypeKey, rankComponent, wildCardKey);
  }
 

public InferenceVariable(TypeBinding typeParameter, int variableRank, InvocationSite site, LookupEnvironment environment, ReferenceBinding object) {
	super(CharOperation.concat(typeParameter.shortReadableName(), Integer.toString(variableRank).toCharArray(), '#'), 
			null/*declaringElement*/, variableRank, environment);
	this.site = site;
	this.typeParameter = typeParameter;
	this.tagBits |= typeParameter.tagBits & TagBits.AnnotationNullMASK;
	if (typeParameter.isTypeVariable()) {
		TypeVariableBinding typeVariable = (TypeVariableBinding) typeParameter;
		if (typeVariable.firstBound != null) {
			long boundBits = typeVariable.firstBound.tagBits & TagBits.AnnotationNullMASK;
			if (boundBits == TagBits.AnnotationNonNull)
				this.tagBits |= boundBits; // @NonNull must be preserved
			else
				this.nullHints |= boundBits; // @Nullable is only a hint
		}
	}
	this.superclass = object;
}
 

private void decodeMethodParameters(int offset, MethodInfo methodInfo) {
	int readOffset = offset + 6;
	final int length = u1At(readOffset);
	if (length != 0) {
		readOffset += 1;
		this.argumentNames = new char[length][];
		for (int i = 0; i < length; i++) {
			int nameIndex = u2At(readOffset);
			if (nameIndex != 0) {
				int utf8Offset = this.constantPoolOffsets[nameIndex] - this.structOffset;
				char[] parameterName = utf8At(utf8Offset + 3, u2At(utf8Offset + 1));
				this.argumentNames[i] = parameterName;
			} else {
				this.argumentNames[i] = CharOperation.concat(ARG, String.valueOf(i).toCharArray());
			}
			readOffset += 4;
		}
	}
}
 

public char [][] getParameterizedTypeName() {
	switch (this.kind) {
		case Wildcard.UNBOUND :
			return new char[][] { WILDCARD_NAME };
		case Wildcard.EXTENDS :
			return new char[][] { CharOperation.concat(WILDCARD_NAME, WILDCARD_EXTENDS, CharOperation.concatWith(this.bound.getParameterizedTypeName(), '.')) };
		default: // SUPER
			return new char[][] { CharOperation.concat(WILDCARD_NAME, WILDCARD_SUPER, CharOperation.concatWith(this.bound.getParameterizedTypeName(), '.')) };
	}
}
 

/**
 * Returns a <code>String</code> describing the modifiers for this member,
 * ending with whitespace (if not empty). This value serves as a replacement
 * value for the member's modifier range when the modifiers have been altered
 * from their original contents.
 */
protected char[] generateFlags() {
	char[] flags= Flags.toString(getFlags()).toCharArray();
	if (flags.length == 0) {
		return flags;
	} else {
		return CharOperation.concat(flags, new char[] {' '});
	}
}
 

public SyntheticArgumentBinding(LocalVariableBinding actualOuterLocalVariable) {

		super(
			CharOperation.concat(TypeConstants.SYNTHETIC_OUTER_LOCAL_PREFIX, actualOuterLocalVariable.name),
			actualOuterLocalVariable.type,
			ClassFileConstants.AccFinal,
			true);
		this.actualOuterLocalVariable = actualOuterLocalVariable;
	}
 

private char[][] getParameterNames(char[] methodDescriptor, ICodeAttribute codeAttribute, IMethodParametersAttribute parametersAttribute, int accessFlags) {
	int paramCount = Signature.getParameterCount(methodDescriptor);
	char[][] parameterNames = new char[paramCount][];
	// check if the code attribute has debug info for this method
	if (parametersAttribute != null) {
		int parameterCount = parametersAttribute.getMethodParameterLength();
		for (int i = 0; i < paramCount; i++) {
			if (i < parameterCount && parametersAttribute.getParameterName(i) != null) {
				parameterNames[i] = parametersAttribute.getParameterName(i);
			} else {
				parameterNames[i] = Messages.disassembler_anonymousparametername.toCharArray();
			}
		}
	} else if (codeAttribute != null) {
			ILocalVariableAttribute localVariableAttribute = codeAttribute.getLocalVariableAttribute();
			if (localVariableAttribute != null) {
				ILocalVariableTableEntry[] entries = localVariableAttribute.getLocalVariableTable();
				final int startingIndex = (accessFlags & IModifierConstants.ACC_STATIC) != 0 ? 0 : 1;
				for (int i = 0; i < paramCount; i++) {
					ILocalVariableTableEntry searchedEntry = getEntryFor(getLocalIndex(startingIndex, i, methodDescriptor), entries);
					if (searchedEntry != null) {
						parameterNames[i] = searchedEntry.getName();
					} else {
						parameterNames[i] = CharOperation.concat(Messages.disassembler_parametername.toCharArray(), Integer.toString(i).toCharArray());
					}
				}
			} else {
				for (int i = 0; i < paramCount; i++) {
					parameterNames[i] = CharOperation.concat(Messages.disassembler_parametername.toCharArray(), Integer.toString(i).toCharArray());
				}
			}
	} else {
		for (int i = 0; i < paramCount; i++) {
			parameterNames[i] = CharOperation.concat(Messages.disassembler_parametername.toCharArray(), Integer.toString(i).toCharArray());
		}
	}
	return parameterNames;
}
 

/**
 * @return char[][]
 */
public char [][] getParameterizedTypeName(){
	int length = this.tokens.length;
	char[][] qParamName = new char[length][];
	for (int i = 0; i < length; i++) {
		TypeReference[] arguments = this.typeArguments[i];
		if (arguments == null) {
			qParamName[i] = this.tokens[i];
		} else {
			StringBuffer buffer = new StringBuffer(5);
			buffer.append(this.tokens[i]);
			buffer.append('<');
			for (int j = 0, argLength =arguments.length; j < argLength; j++) {
				if (j > 0) buffer.append(',');
				buffer.append(CharOperation.concatWith(arguments[j].getParameterizedTypeName(), '.'));
			}
			buffer.append('>');
			int nameLength = buffer.length();
			qParamName[i] = new char[nameLength];
			buffer.getChars(0, nameLength, qParamName[i], 0);
		}
	}
	int dim = this.dimensions;
	if (dim > 0) {
		char[] dimChars = new char[dim*2];
		for (int i = 0; i < dim; i++) {
			int index = i*2;
			dimChars[index] = '[';
			dimChars[index+1] = ']';
		}
		qParamName[length-1] = CharOperation.concat(qParamName[length-1], dimChars);
	}
	return qParamName;
}
 

public char[] sourceName() {
     switch (this.boundKind) {
         case Wildcard.UNBOUND :
             return TypeConstants.WILDCARD_NAME;
         case Wildcard.EXTENDS :
             return CharOperation.concat(TypeConstants.WILDCARD_NAME, TypeConstants.WILDCARD_EXTENDS, this.bound.sourceName());
default: // SUPER
    return CharOperation.concat(TypeConstants.WILDCARD_NAME, TypeConstants.WILDCARD_SUPER, this.bound.sourceName());
     }
 }
 

public EntryResult[] queryIn(Index index) throws IOException {
	char[] key = this.selector; // can be null
	int matchRule = getMatchRule();

	switch(getMatchMode()) {
		case R_EXACT_MATCH :
			if (this.selector != null && this.parameterCount >= 0 && !this.varargs)
				key = createIndexKey(this.selector, this.parameterCount);
			else { // do a prefix query with the selector
				matchRule &= ~R_EXACT_MATCH;
				matchRule |= R_PREFIX_MATCH;
			}
			break;
		case R_PREFIX_MATCH :
			// do a prefix query with the selector
			break;
		case R_PATTERN_MATCH :
			if (this.parameterCount >= 0 && !this.varargs)
				key = createIndexKey(this.selector == null ? ONE_STAR : this.selector, this.parameterCount);
			else if (this.selector != null && this.selector[this.selector.length - 1] != '*')
				key = CharOperation.concat(this.selector, ONE_STAR, SEPARATOR);
			// else do a pattern query with just the selector
			break;
		case R_REGEXP_MATCH :
			// TODO (frederic) implement regular expression match
			break;
		case R_CAMELCASE_MATCH:
		case R_CAMELCASE_SAME_PART_COUNT_MATCH:
			// do a prefix query with the selector
			break;
	}

	return index.query(getIndexCategories(), key, matchRule); // match rule is irrelevant when the key is null
}
 

/**
 * Answer the receiver's constant pool name.
 * NOTE: This method should only be used during/after code gen.
 * e.g. '[Ljava/lang/Object;'
 */
public char[] constantPoolName() {
	if (this.constantPoolName != null)
		return this.constantPoolName;

	char[] brackets = new char[this.dimensions];
	for (int i = this.dimensions - 1; i >= 0; i--) brackets[i] = '[';
	return this.constantPoolName = CharOperation.concat(brackets, this.leafComponentType.signature());
}
 

public char[] nullAnnotatedReadableName(CompilerOptions options, boolean shortNames) /* java.lang.Object @o.e.j.a.NonNull[] */ {
	if (this.nullTagBitsPerDimension == null)
		return shortNames ? shortReadableName() : readableName();
	char[][] brackets = new char[this.dimensions][];
	for (int i = 0; i < this.dimensions; i++) {
		if ((this.nullTagBitsPerDimension[i] & TagBits.AnnotationNullMASK) != 0) {
			char[][] fqAnnotationName;
			if ((this.nullTagBitsPerDimension[i] & TagBits.AnnotationNonNull) != 0)
				fqAnnotationName = options.nonNullAnnotationName;
			else
				fqAnnotationName = options.nullableAnnotationName;
			char[] annotationName = shortNames 
										? fqAnnotationName[fqAnnotationName.length-1] 
										: CharOperation.concatWith(fqAnnotationName, '.');
			brackets[i] = new char[annotationName.length+3];
			brackets[i][0] = '@';
			System.arraycopy(annotationName, 0, brackets[i], 1, annotationName.length);
			brackets[i][annotationName.length+1] = '[';
			brackets[i][annotationName.length+2] = ']';
		} else {
			brackets[i] = new char[]{'[', ']'}; 
		}
	}
	return CharOperation.concat(this.leafComponentType.nullAnnotatedReadableName(options, shortNames), 
								 CharOperation.concatWith(brackets, ' '),
								 ' ');
}
 

/**
 * Answer the source name for the type.
 * In the case of member types, as the qualified name from its top level type.
 * For example, for a member type N defined inside M & A: "A.M.N".
 */
public char[] qualifiedSourceName() {
	if (isMemberType())
		return CharOperation.concat(enclosingType().qualifiedSourceName(), sourceName(), '.');
	return sourceName();
}
 

/**
 * An method accessor is a method with an access$N selector, where N is incremented in case of collisions.
 */
public void initializeMethodAccessor(MethodBinding accessedMethod, boolean isSuperAccess, ReferenceBinding receiverType) {

	this.targetMethod = accessedMethod;
	if (isSuperAccess && receiverType.isInterface() && !accessedMethod.isStatic())
		this.modifiers = ClassFileConstants.AccPrivate | ClassFileConstants.AccSynthetic;
	else
		this.modifiers = ClassFileConstants.AccDefault | ClassFileConstants.AccStatic | ClassFileConstants.AccSynthetic;
	this.tagBits |= (TagBits.AnnotationResolved | TagBits.DeprecatedAnnotationResolved);
	SourceTypeBinding declaringSourceType = (SourceTypeBinding) receiverType;
	SyntheticMethodBinding[] knownAccessMethods = declaringSourceType.syntheticMethods();
	int methodId = knownAccessMethods == null ? 0 : knownAccessMethods.length;
	this.index = methodId;

	this.selector = CharOperation.concat(TypeConstants.SYNTHETIC_ACCESS_METHOD_PREFIX, String.valueOf(methodId).toCharArray());
	this.returnType = accessedMethod.returnType;
	this.purpose = isSuperAccess ? SyntheticMethodBinding.SuperMethodAccess : SyntheticMethodBinding.MethodAccess;

	if (accessedMethod.isStatic() || (isSuperAccess && receiverType.isInterface())) {
		this.parameters = accessedMethod.parameters;
	} else {
		this.parameters = new TypeBinding[accessedMethod.parameters.length + 1];
		this.parameters[0] = declaringSourceType;
		System.arraycopy(accessedMethod.parameters, 0, this.parameters, 1, accessedMethod.parameters.length);
	}
	this.thrownExceptions = accessedMethod.thrownExceptions;
	this.declaringClass = declaringSourceType;

	// check for method collision
	boolean needRename;
	do {
		check : {
			needRename = false;
			// check for collision with known methods
			MethodBinding[] methods = declaringSourceType.methods();
			for (int i = 0, length = methods.length; i < length; i++) {
				if (CharOperation.equals(this.selector, methods[i].selector) && areParameterErasuresEqual(methods[i])) {
					needRename = true;
					break check;
				}
			}
			// check for collision with synthetic accessors
			if (knownAccessMethods != null) {
				for (int i = 0, length = knownAccessMethods.length; i < length; i++) {
					if (knownAccessMethods[i] == null) continue;
					if (CharOperation.equals(this.selector, knownAccessMethods[i].selector) && areParameterErasuresEqual(knownAccessMethods[i])) {
						needRename = true;
						break check;
					}
				}
			}
		}
		if (needRename) { // retry with a selector & a growing methodId
			setSelector(CharOperation.concat(TypeConstants.SYNTHETIC_ACCESS_METHOD_PREFIX, String.valueOf(++methodId).toCharArray()));
		}
	} while (needRename);

	// retrieve sourceStart position for the target method for line number attributes
	AbstractMethodDeclaration[] methodDecls = declaringSourceType.scope.referenceContext.methods;
	if (methodDecls != null) {
		for (int i = 0, length = methodDecls.length; i < length; i++) {
			if (methodDecls[i].binding == accessedMethod) {
				this.sourceStart = methodDecls[i].sourceStart;
				return;
			}
		}
	}
}
 

public SyntheticFieldBinding addSyntheticFieldForSwitchEnum(char[] fieldName, String key) {
	if (!isPrototype()) throw new IllegalStateException();
	if (this.synthetics == null)
		this.synthetics = new HashMap[MAX_SYNTHETICS];
	if (this.synthetics[SourceTypeBinding.FIELD_EMUL] == null)
		this.synthetics[SourceTypeBinding.FIELD_EMUL] = new HashMap(5);

	SyntheticFieldBinding synthField = (SyntheticFieldBinding) this.synthetics[SourceTypeBinding.FIELD_EMUL].get(key);
	if (synthField == null) {
		synthField = new SyntheticFieldBinding(
			fieldName,
			this.scope.createArrayType(TypeBinding.INT,1),
			(isInterface() ? (ClassFileConstants.AccPublic | ClassFileConstants.AccFinal) : ClassFileConstants.AccPrivate) | ClassFileConstants.AccStatic | ClassFileConstants.AccSynthetic,
			this,
			Constant.NotAConstant,
			this.synthetics[SourceTypeBinding.FIELD_EMUL].size());
		this.synthetics[SourceTypeBinding.FIELD_EMUL].put(key, synthField);
	}
	// ensure there is not already such a field defined by the user
	boolean needRecheck;
	int index = 0;
	do {
		needRecheck = false;
		FieldBinding existingField;
		if ((existingField = getField(synthField.name, true /*resolve*/)) != null) {
			TypeDeclaration typeDecl = this.scope.referenceContext;
			FieldDeclaration[] fieldDeclarations = typeDecl.fields;
			int max = fieldDeclarations == null ? 0 : fieldDeclarations.length;
			for (int i = 0; i < max; i++) {
				FieldDeclaration fieldDecl = fieldDeclarations[i];
				if (fieldDecl.binding == existingField) {
					synthField.name = CharOperation.concat(
						fieldName,
						("_" + String.valueOf(index++)).toCharArray()); //$NON-NLS-1$
					needRecheck = true;
					break;
				}
			}
		}
	} while (needRecheck);
	return synthField;
}
 

public void codeComplete(
		char[] snippet,
		int insertion,
		int position,
		char[][] localVariableTypeNames,
		char[][] localVariableNames,
		int[] localVariableModifiers,
		boolean isStatic,
		CompletionRequestor requestor,
		WorkingCopyOwner owner,
		IProgressMonitor monitor) throws JavaModelException {
	if (requestor == null) {
		throw new IllegalArgumentException("Completion requestor cannot be null"); //$NON-NLS-1$
	}
	JavaProject project = (JavaProject) getJavaProject();
	SearchableEnvironment environment = project.newSearchableNameEnvironment(owner);
	CompletionEngine engine = new CompletionEngine(environment, requestor, project.getOptions(true), project, owner, monitor);

	String source = getClassFile().getSource();
	if (source != null && insertion > -1 && insertion < source.length()) {
		// code complete

		char[] prefix = CharOperation.concat(source.substring(0, insertion).toCharArray(), new char[]{'{'});
		char[] suffix =  CharOperation.concat(new char[]{'}'}, source.substring(insertion).toCharArray());
		char[] fakeSource = CharOperation.concat(prefix, snippet, suffix);

		BasicCompilationUnit cu =
			new BasicCompilationUnit(
				fakeSource,
				null,
				getElementName(),
				project); // use project to retrieve corresponding .java IFile

		engine.complete(cu, prefix.length + position, prefix.length, null/*extended context isn't computed*/);
	} else {
		engine.complete(this, snippet, position, localVariableTypeNames, localVariableNames, localVariableModifiers, isStatic);
	}
	if (NameLookup.VERBOSE) {
		System.out.println(Thread.currentThread() + " TIME SPENT in NameLoopkup#seekTypesInSourcePackage: " + environment.nameLookup.timeSpentInSeekTypesInSourcePackage + "ms");  //$NON-NLS-1$ //$NON-NLS-2$
		System.out.println(Thread.currentThread() + " TIME SPENT in NameLoopkup#seekTypesInBinaryPackage: " + environment.nameLookup.timeSpentInSeekTypesInBinaryPackage + "ms");  //$NON-NLS-1$ //$NON-NLS-2$
	}
}
 

public CompletionOnArgumentName(char[] name , long posNom , TypeReference tr , int modifiers){

		super(CharOperation.concat(name, FAKENAMESUFFIX), posNom, tr, modifiers);
		this.realName = name;
	}
 

public CompletionOnFieldName(char[] name, int sourceStart, int sourceEnd) {
	super(CharOperation.concat(name, FAKENAMESUFFIX), sourceStart, sourceEnd);
	this.realName = name;
}
 

/**
 * T::Ljava/util/Map;:Ljava/io/Serializable;
 * T:LY<TT;>
 */
public char[] genericTypeSignature() {
    if (this.genericTypeSignature != null) return this.genericTypeSignature;
	return this.genericTypeSignature = CharOperation.concat('T', this.sourceName, ';');
}
 

public CompletionOnLocalName(char[] name, int sourceStart, int sourceEnd){

		super(CharOperation.concat(name, FAKENAMESUFFIX), sourceStart, sourceEnd);
		this.realName = name;
	}