| /******************************************************************************* |
| * Copyright (c) 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Red Hat Inc. - copy to JavaElementLabelComposerCore |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core.manipulation; |
| |
| import java.util.jar.Attributes.Name; |
| |
| import org.eclipse.osgi.util.NLS; |
| |
| import org.eclipse.core.runtime.IPath; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| |
| import org.eclipse.jdt.core.BindingKey; |
| import org.eclipse.jdt.core.Flags; |
| import org.eclipse.jdt.core.IAnnotation; |
| import org.eclipse.jdt.core.IClassFile; |
| import org.eclipse.jdt.core.IClasspathEntry; |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IField; |
| import org.eclipse.jdt.core.IInitializer; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaModelStatusConstants; |
| import org.eclipse.jdt.core.ILocalVariable; |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.IMemberValuePair; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.IModuleDescription; |
| import org.eclipse.jdt.core.IPackageFragment; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.ISourceRange; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.ITypeParameter; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.Signature; |
| import org.eclipse.jdt.core.SourceRange; |
| |
| import org.eclipse.jdt.internal.corext.dom.ASTNodes; |
| import org.eclipse.jdt.internal.corext.util.JavaModelUtil; |
| |
| /** |
| * Implementation of {@link JavaElementLabelsCore}. |
| * |
| * @since 1.10 |
| */ |
| public class JavaElementLabelComposerCore { |
| |
| /** |
| * An adapter for buffer supported by the label composer. |
| */ |
| public static abstract class FlexibleBufferCore { |
| |
| /** |
| * Appends the string representation of the given character to the buffer. |
| * |
| * @param ch the character to append |
| * @return a reference to this object |
| */ |
| public abstract FlexibleBufferCore append(char ch); |
| |
| /** |
| * Appends the given string to the buffer. |
| * |
| * @param string the string to append |
| * @return a reference to this object |
| */ |
| public abstract FlexibleBufferCore append(String string); |
| |
| /** |
| * Returns the length of the the buffer. |
| * |
| * @return the length of the current string |
| */ |
| public abstract int length(); |
| |
| } |
| |
| public static class FlexibleStringBufferCore extends FlexibleBufferCore { |
| private final StringBuffer fStringBuffer; |
| |
| public FlexibleStringBufferCore(StringBuffer stringBuffer) { |
| fStringBuffer= stringBuffer; |
| } |
| |
| @Override |
| public FlexibleBufferCore append(char ch) { |
| fStringBuffer.append(ch); |
| return this; |
| } |
| |
| @Override |
| public FlexibleBufferCore append(String string) { |
| fStringBuffer.append(string); |
| return this; |
| } |
| |
| @Override |
| public int length() { |
| return fStringBuffer.length(); |
| } |
| |
| @Override |
| public String toString() { |
| return fStringBuffer.toString(); |
| } |
| } |
| |
| final static long QUALIFIER_FLAGS= JavaElementLabelsCore.P_COMPRESSED | JavaElementLabelsCore.USE_RESOLVED; |
| |
| /* |
| * Package name compression |
| */ |
| protected static String fgPkgNamePrefix; |
| protected static String fgPkgNamePostfix; |
| protected static int fgPkgNameChars; |
| protected static int fgPkgNameLength= -1; |
| |
| protected final FlexibleBufferCore fBuffer; |
| |
| protected static final boolean getFlag(long flags, long flag) { |
| return (flags & flag) != 0; |
| } |
| |
| /** |
| * Creates a new java element composer based on the given buffer. |
| * |
| * @param buffer the buffer |
| */ |
| public JavaElementLabelComposerCore(FlexibleBufferCore buffer) { |
| fBuffer= buffer; |
| } |
| |
| /** |
| * Creates a new java element composer based on the given buffer. |
| * |
| * @param buffer the string buffer |
| */ |
| public JavaElementLabelComposerCore(StringBuffer buffer) { |
| this(new FlexibleStringBufferCore(buffer)); |
| } |
| |
| /** |
| * Appends the label for a Java element with the flags as defined by this class. |
| * |
| * @param element the element to render |
| * @param flags the rendering flags. |
| */ |
| public void appendElementLabel(IJavaElement element, long flags) { |
| int type= element.getElementType(); |
| IPackageFragmentRoot root= null; |
| |
| if (type != IJavaElement.JAVA_MODEL && type != IJavaElement.JAVA_PROJECT && type != IJavaElement.PACKAGE_FRAGMENT_ROOT) |
| root= JavaModelUtil.getPackageFragmentRoot(element); |
| if (root != null && getFlag(flags, JavaElementLabelsCore.PREPEND_ROOT_PATH)) { |
| appendPackageFragmentRootLabel(root, JavaElementLabelsCore.ROOT_QUALIFIED); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| } |
| |
| switch (type) { |
| case IJavaElement.METHOD: |
| appendMethodLabel((IMethod) element, flags); |
| break; |
| case IJavaElement.FIELD: |
| appendFieldLabel((IField) element, flags); |
| break; |
| case IJavaElement.LOCAL_VARIABLE: |
| appendLocalVariableLabel((ILocalVariable) element, flags); |
| break; |
| case IJavaElement.TYPE_PARAMETER: |
| appendTypeParameterLabel((ITypeParameter) element, flags); |
| break; |
| case IJavaElement.INITIALIZER: |
| appendInitializerLabel((IInitializer) element, flags); |
| break; |
| case IJavaElement.TYPE: |
| appendTypeLabel((IType) element, flags); |
| break; |
| case IJavaElement.CLASS_FILE: |
| appendClassFileLabel((IClassFile) element, flags); |
| break; |
| case IJavaElement.COMPILATION_UNIT: |
| appendCompilationUnitLabel((ICompilationUnit) element, flags); |
| break; |
| case IJavaElement.PACKAGE_FRAGMENT: |
| appendPackageFragmentLabel((IPackageFragment) element, flags); |
| break; |
| case IJavaElement.PACKAGE_FRAGMENT_ROOT: |
| appendPackageFragmentRootLabel((IPackageFragmentRoot) element, flags); |
| break; |
| case IJavaElement.JAVA_MODULE: |
| appendModuleLabel((IModuleDescription) element, flags); |
| break; |
| case IJavaElement.IMPORT_CONTAINER: |
| case IJavaElement.IMPORT_DECLARATION: |
| case IJavaElement.PACKAGE_DECLARATION: |
| appendDeclarationLabel(element, flags); |
| break; |
| case IJavaElement.JAVA_PROJECT: |
| case IJavaElement.JAVA_MODEL: |
| fBuffer.append(element.getElementName()); |
| break; |
| default: |
| fBuffer.append(element.getElementName()); |
| } |
| |
| if (root != null && getFlag(flags, JavaElementLabelsCore.APPEND_ROOT_PATH)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendPackageFragmentRootLabel(root, JavaElementLabelsCore.ROOT_QUALIFIED); |
| |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| |
| } |
| } |
| |
| protected void setQualifierStyle(@SuppressWarnings("unused") int offset) { |
| // core does not handle StyledString |
| } |
| |
| protected void setDecorationsStyle(@SuppressWarnings("unused") int offset) { |
| // core does not handle StyledString |
| } |
| |
| /** |
| * Appends the label for a method. Considers the M_* flags. |
| * |
| * @param method the element to render |
| * @param flags the rendering flags. Flags with names starting with 'M_' are considered. |
| */ |
| public void appendMethodLabel(IMethod method, long flags) { |
| try { |
| BindingKey resolvedKey= getFlag(flags, JavaElementLabelsCore.USE_RESOLVED) && method.isResolved() ? new BindingKey(method.getKey()) : null; |
| String resolvedSig= (resolvedKey != null) ? resolvedKey.toSignature() : null; |
| |
| // type parameters |
| if (getFlag(flags, JavaElementLabelsCore.M_PRE_TYPE_PARAMETERS)) { |
| if (resolvedKey != null) { |
| if (resolvedKey.isParameterizedMethod()) { |
| String[] typeArgRefs= resolvedKey.getTypeArguments(); |
| if (typeArgRefs.length > 0) { |
| appendTypeArgumentSignaturesLabel(method, typeArgRefs, flags); |
| fBuffer.append(' '); |
| } |
| } else { |
| String[] typeParameterSigs= Signature.getTypeParameters(resolvedSig); |
| if (typeParameterSigs.length > 0) { |
| appendTypeParameterSignaturesLabel(typeParameterSigs, flags); |
| fBuffer.append(' '); |
| } |
| } |
| } else if (method.exists()) { |
| ITypeParameter[] typeParameters= method.getTypeParameters(); |
| if (typeParameters.length > 0) { |
| appendTypeParametersLabels(typeParameters, flags); |
| fBuffer.append(' '); |
| } |
| } |
| } |
| |
| // return type |
| if (getFlag(flags, JavaElementLabelsCore.M_PRE_RETURNTYPE) && method.exists() && !method.isConstructor()) { |
| String returnTypeSig= resolvedSig != null ? Signature.getReturnType(resolvedSig) : method.getReturnType(); |
| appendTypeSignatureLabel(method, returnTypeSig, flags); |
| fBuffer.append(' '); |
| } |
| |
| // qualification |
| if (getFlag(flags, JavaElementLabelsCore.M_FULLY_QUALIFIED)) { |
| appendTypeLabel(method.getDeclaringType(), JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| |
| fBuffer.append(getElementName(method)); |
| |
| // constructor type arguments |
| if (getFlag(flags, JavaElementLabelsCore.T_TYPE_PARAMETERS) && method.exists() && method.isConstructor()) { |
| if (resolvedSig != null && resolvedKey.isParameterizedType()) { |
| BindingKey declaringType= resolvedKey.getDeclaringType(); |
| if (declaringType != null) { |
| String[] declaringTypeArguments= declaringType.getTypeArguments(); |
| appendTypeArgumentSignaturesLabel(method, declaringTypeArguments, flags); |
| } |
| } |
| } |
| |
| // parameters |
| fBuffer.append('('); |
| String[] declaredParameterTypes= method.getParameterTypes(); |
| if (getFlag(flags, JavaElementLabelsCore.M_PARAMETER_TYPES | JavaElementLabelsCore.M_PARAMETER_NAMES)) { |
| String[] types= null; |
| int nParams= 0; |
| boolean renderVarargs= false; |
| boolean isPolymorphic= false; |
| if (getFlag(flags, JavaElementLabelsCore.M_PARAMETER_TYPES)) { |
| if (resolvedSig != null) { |
| types= Signature.getParameterTypes(resolvedSig); |
| } else { |
| types= declaredParameterTypes; |
| } |
| nParams= types.length; |
| renderVarargs= method.exists() && Flags.isVarargs(method.getFlags()); |
| if (renderVarargs |
| && resolvedSig != null |
| && declaredParameterTypes.length == 1 |
| && JavaModelUtil.isPolymorphicSignature(method)) { |
| renderVarargs= false; |
| isPolymorphic= true; |
| } |
| } |
| String[] names= null; |
| if (getFlag(flags, JavaElementLabelsCore.M_PARAMETER_NAMES) && method.exists()) { |
| names= method.getParameterNames(); |
| if (isPolymorphic) { |
| // handled specially below |
| } else if (types == null) { |
| nParams= names.length; |
| } else { // types != null |
| if (nParams != names.length) { |
| if (resolvedSig != null && types.length > names.length) { |
| // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=99137 |
| nParams= names.length; |
| String[] typesWithoutSyntheticParams= new String[nParams]; |
| System.arraycopy(types, types.length - nParams, typesWithoutSyntheticParams, 0, nParams); |
| types= typesWithoutSyntheticParams; |
| } else { |
| // https://bugs.eclipse.org/bugs/show_bug.cgi?id=101029 |
| // JavaPlugin.logErrorMessage("JavaElementLabels: Number of param types(" + nParams + ") != number of names(" + names.length + "): " + method.getElementName()); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$ |
| names= null; // no names rendered |
| } |
| } |
| } |
| } |
| |
| ILocalVariable[] annotatedParameters= null; |
| if (nParams > 0 && getFlag(flags, JavaElementLabelsCore.M_PARAMETER_ANNOTATIONS)) { |
| annotatedParameters= method.getParameters(); |
| } |
| |
| for (int i= 0; i < nParams; i++) { |
| if (i > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| if (annotatedParameters != null && i < annotatedParameters.length) { |
| appendAnnotationLabels(annotatedParameters[i].getAnnotations(), flags); |
| } |
| |
| if (types != null) { |
| String paramSig= types[i]; |
| if (renderVarargs && (i == nParams - 1)) { |
| int newDim= Signature.getArrayCount(paramSig) - 1; |
| appendTypeSignatureLabel(method, Signature.getElementType(paramSig), flags); |
| for (int k= 0; k < newDim; k++) { |
| fBuffer.append('[').append(']'); |
| } |
| fBuffer.append(JavaElementLabelsCore.ELLIPSIS_STRING); |
| } else { |
| appendTypeSignatureLabel(method, paramSig, flags); |
| } |
| } |
| if (names != null) { |
| if (types != null) { |
| fBuffer.append(' '); |
| } |
| if (isPolymorphic) { |
| fBuffer.append(names[0] + i); |
| } else { |
| fBuffer.append(names[i]); |
| } |
| } |
| } |
| } else { |
| if (declaredParameterTypes.length > 0) { |
| fBuffer.append(JavaElementLabelsCore.ELLIPSIS_STRING); |
| } |
| } |
| fBuffer.append(')'); |
| |
| if (getFlag(flags, JavaElementLabelsCore.M_EXCEPTIONS)) { |
| String[] types; |
| if (resolvedKey != null) { |
| types= resolvedKey.getThrownExceptions(); |
| } else { |
| types= method.exists() ? method.getExceptionTypes() : new String[0]; |
| } |
| if (types.length > 0) { |
| fBuffer.append(" throws "); //$NON-NLS-1$ |
| for (int i= 0; i < types.length; i++) { |
| if (i > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| appendTypeSignatureLabel(method, types[i], flags); |
| } |
| } |
| } |
| |
| |
| if (getFlag(flags, JavaElementLabelsCore.M_APP_TYPE_PARAMETERS)) { |
| int offset= fBuffer.length(); |
| if (resolvedKey != null) { |
| if (resolvedKey.isParameterizedMethod()) { |
| String[] typeArgRefs= resolvedKey.getTypeArguments(); |
| if (typeArgRefs.length > 0) { |
| fBuffer.append(' '); |
| appendTypeArgumentSignaturesLabel(method, typeArgRefs, flags); |
| } |
| } else { |
| String[] typeParameterSigs= Signature.getTypeParameters(resolvedSig); |
| if (typeParameterSigs.length > 0) { |
| fBuffer.append(' '); |
| appendTypeParameterSignaturesLabel(typeParameterSigs, flags); |
| } |
| } |
| } else if (method.exists()) { |
| ITypeParameter[] typeParameters= method.getTypeParameters(); |
| if (typeParameters.length > 0) { |
| fBuffer.append(' '); |
| appendTypeParametersLabels(typeParameters, flags); |
| } |
| } |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE) && offset != fBuffer.length()) { |
| setDecorationsStyle(offset); |
| } |
| } |
| |
| if (getFlag(flags, JavaElementLabelsCore.M_APP_RETURNTYPE) && method.exists() && !method.isConstructor()) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.DECL_STRING); |
| String returnTypeSig= resolvedSig != null ? Signature.getReturnType(resolvedSig) : method.getReturnType(); |
| appendTypeSignatureLabel(method, returnTypeSig, flags); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setDecorationsStyle(offset); |
| } |
| } |
| |
| // category |
| if (getFlag(flags, JavaElementLabelsCore.M_CATEGORY) && method.exists()) |
| appendCategoryLabel(method, flags); |
| |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.M_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendTypeLabel(method.getDeclaringType(), JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| |
| } catch (JavaModelException e) { |
| if(e.getStatus().getCode() == IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST) { |
| // don't care, we are decorating already removed element |
| return; |
| } |
| JavaManipulationPlugin.logException("Error rendering method label", e); //$NON-NLS-1$ // NotExistsException will not reach this point |
| } |
| } |
| |
| @SuppressWarnings("unused") |
| protected void appendCategoryLabel(IMember member, long flags) throws JavaModelException { |
| // core does not implement this |
| } |
| |
| |
| protected void appendAnnotationLabels(IAnnotation[] annotations, long flags) throws JavaModelException { |
| for (int j= 0; j < annotations.length; j++) { |
| IAnnotation annotation= annotations[j]; |
| appendAnnotationLabel(annotation, flags); |
| fBuffer.append(' '); |
| } |
| } |
| |
| public void appendAnnotationLabel(IAnnotation annotation, long flags) throws JavaModelException { |
| fBuffer.append('@'); |
| appendTypeSignatureLabel(annotation, Signature.createTypeSignature(annotation.getElementName(), false), flags); |
| IMemberValuePair[] memberValuePairs= annotation.getMemberValuePairs(); |
| if (memberValuePairs.length == 0) { |
| return; |
| } |
| fBuffer.append('('); |
| for (int i= 0; i < memberValuePairs.length; i++) { |
| if (i > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| IMemberValuePair memberValuePair= memberValuePairs[i]; |
| fBuffer.append(getMemberName(annotation, annotation.getElementName(), memberValuePair.getMemberName())); |
| fBuffer.append('='); |
| appendAnnotationValue(annotation, memberValuePair.getValue(), memberValuePair.getValueKind(), flags); |
| } |
| fBuffer.append(')'); |
| } |
| |
| public void appendAnnotationValue(IAnnotation annotation, Object value, int valueKind, long flags) throws JavaModelException { |
| // Note: To be bug-compatible with Javadoc from Java 5/6/7, we currently don't escape HTML tags in String-valued annotations. |
| if (value instanceof Object[]) { |
| fBuffer.append('{'); |
| Object[] values= (Object[]) value; |
| for (int j= 0; j < values.length; j++) { |
| if (j > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| value= values[j]; |
| appendAnnotationValue(annotation, value, valueKind, flags); |
| } |
| fBuffer.append('}'); |
| } else { |
| switch (valueKind) { |
| case IMemberValuePair.K_CLASS: |
| appendTypeSignatureLabel(annotation, Signature.createTypeSignature((String) value, false), flags); |
| fBuffer.append(".class"); //$NON-NLS-1$ |
| break; |
| case IMemberValuePair.K_QUALIFIED_NAME: |
| String name= (String) value; |
| int lastDot= name.lastIndexOf('.'); |
| if (lastDot != -1) { |
| String type= name.substring(0, lastDot); |
| String field= name.substring(lastDot + 1); |
| appendTypeSignatureLabel(annotation, Signature.createTypeSignature(type, false), flags); |
| fBuffer.append('.'); |
| fBuffer.append(getMemberName(annotation, type, field)); |
| break; |
| } |
| // case IMemberValuePair.K_SIMPLE_NAME: // can't implement, since parent type is not known |
| //$FALL-THROUGH$ |
| case IMemberValuePair.K_ANNOTATION: |
| appendAnnotationLabel((IAnnotation) value, flags); |
| break; |
| case IMemberValuePair.K_STRING: |
| fBuffer.append(ASTNodes.getEscapedStringLiteral((String) value)); |
| break; |
| case IMemberValuePair.K_CHAR: |
| fBuffer.append(ASTNodes.getEscapedCharacterLiteral(((Character) value).charValue())); |
| break; |
| default: |
| fBuffer.append(String.valueOf(value)); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Appends labels for type parameters from type binding array. |
| * |
| * @param typeParameters the type parameters |
| * @param flags flags with render options |
| * @throws JavaModelException ... |
| */ |
| private void appendTypeParametersLabels(ITypeParameter[] typeParameters, long flags) throws JavaModelException { |
| if (typeParameters.length > 0) { |
| fBuffer.append(getLT()); |
| for (int i = 0; i < typeParameters.length; i++) { |
| if (i > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| appendTypeParameterWithBounds(typeParameters[i], flags); |
| } |
| fBuffer.append(getGT()); |
| } |
| } |
| |
| /** |
| * Appends the style label for a field. Considers the F_* flags. |
| * |
| * @param field the element to render |
| * @param flags the rendering flags. Flags with names starting with 'F_' are considered. |
| */ |
| public void appendFieldLabel(IField field, long flags) { |
| try { |
| |
| if (getFlag(flags, JavaElementLabelsCore.F_PRE_TYPE_SIGNATURE) && field.exists() && !Flags.isEnum(field.getFlags())) { |
| if (getFlag(flags, JavaElementLabelsCore.USE_RESOLVED) && field.isResolved()) { |
| appendTypeSignatureLabel(field, new BindingKey(field.getKey()).toSignature(), flags); |
| } else { |
| appendTypeSignatureLabel(field, field.getTypeSignature(), flags); |
| } |
| fBuffer.append(' '); |
| } |
| |
| // qualification |
| if (getFlag(flags, JavaElementLabelsCore.F_FULLY_QUALIFIED)) { |
| appendTypeLabel(field.getDeclaringType(), JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| fBuffer.append(getElementName(field)); |
| |
| if (getFlag(flags, JavaElementLabelsCore.F_APP_TYPE_SIGNATURE) && field.exists() && !Flags.isEnum(field.getFlags())) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.DECL_STRING); |
| if (getFlag(flags, JavaElementLabelsCore.USE_RESOLVED) && field.isResolved()) { |
| appendTypeSignatureLabel(field, new BindingKey(field.getKey()).toSignature(), flags); |
| } else { |
| appendTypeSignatureLabel(field, field.getTypeSignature(), flags); |
| } |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setDecorationsStyle(offset); |
| } |
| } |
| |
| // category |
| if (getFlag(flags, JavaElementLabelsCore.F_CATEGORY) && field.exists()) |
| appendCategoryLabel(field, flags); |
| |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.F_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendTypeLabel(field.getDeclaringType(), JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| |
| } catch (JavaModelException e) { |
| JavaManipulationPlugin.log(e); // NotExistsException will not reach this point |
| } |
| } |
| |
| /** |
| * Appends the styled label for a local variable. |
| * |
| * @param localVariable the element to render |
| * @param flags the rendering flags. Flags with names starting with 'F_' are considered. |
| */ |
| public void appendLocalVariableLabel(ILocalVariable localVariable, long flags) { |
| if (getFlag(flags, JavaElementLabelsCore.F_PRE_TYPE_SIGNATURE)) { |
| appendTypeSignatureLabel(localVariable, localVariable.getTypeSignature(), flags); |
| fBuffer.append(' '); |
| } |
| |
| if (getFlag(flags, JavaElementLabelsCore.F_FULLY_QUALIFIED)) { |
| appendElementLabel(localVariable.getDeclaringMember(), JavaElementLabelsCore.M_PARAMETER_TYPES | JavaElementLabelsCore.M_FULLY_QUALIFIED | JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| |
| fBuffer.append(getElementName(localVariable)); |
| |
| if (getFlag(flags, JavaElementLabelsCore.F_APP_TYPE_SIGNATURE)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.DECL_STRING); |
| appendTypeSignatureLabel(localVariable, localVariable.getTypeSignature(), flags); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setDecorationsStyle(offset); |
| } |
| } |
| |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.F_POST_QUALIFIED)) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendElementLabel(localVariable.getDeclaringMember(), JavaElementLabelsCore.M_PARAMETER_TYPES | JavaElementLabelsCore.M_FULLY_QUALIFIED | JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| } |
| } |
| |
| /** |
| * Appends the styled label for a type parameter. |
| * |
| * @param typeParameter the element to render |
| * @param flags the rendering flags. Flags with names starting with 'T_' are considered. |
| */ |
| public void appendTypeParameterLabel(ITypeParameter typeParameter, long flags) { |
| try { |
| appendTypeParameterWithBounds(typeParameter, flags); |
| |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.TP_POST_QUALIFIED)) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| IMember declaringMember= typeParameter.getDeclaringMember(); |
| appendElementLabel(declaringMember, JavaElementLabelsCore.M_PARAMETER_TYPES | JavaElementLabelsCore.M_FULLY_QUALIFIED | JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| } |
| |
| } catch (JavaModelException e) { |
| JavaManipulationPlugin.logException("Error rendering type parameters", e); //$NON-NLS-1$ // NotExistsException will not reach this point |
| } |
| } |
| |
| private void appendTypeParameterWithBounds(ITypeParameter typeParameter, long flags) throws JavaModelException { |
| fBuffer.append(getElementName(typeParameter)); |
| |
| if (typeParameter.exists()) { |
| String[] bounds= typeParameter.getBoundsSignatures(); |
| if (bounds.length > 0 && |
| ! (bounds.length == 1 && "Ljava.lang.Object;".equals(bounds[0]))) { //$NON-NLS-1$ |
| fBuffer.append(" extends "); //$NON-NLS-1$ |
| for (int j= 0; j < bounds.length; j++) { |
| if (j > 0) { |
| fBuffer.append(" & "); //$NON-NLS-1$ |
| } |
| appendTypeSignatureLabel(typeParameter, bounds[j], flags); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Appends the label for a initializer. Considers the I_* flags. |
| * |
| * @param initializer the element to render |
| * @param flags the rendering flags. Flags with names starting with 'I_' are considered. |
| */ |
| public void appendInitializerLabel(IInitializer initializer, long flags) { |
| // qualification |
| if (getFlag(flags, JavaElementLabelsCore.I_FULLY_QUALIFIED)) { |
| appendTypeLabel(initializer.getDeclaringType(), JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| fBuffer.append(JavaElementLabelsMessages.JavaElementLabels_initializer); |
| |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.I_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendTypeLabel(initializer.getDeclaringType(), JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| } |
| |
| protected void appendTypeSignatureLabel(IJavaElement enclosingElement, String typeSig, long flags) { |
| int sigKind= Signature.getTypeSignatureKind(typeSig); |
| switch (sigKind) { |
| case Signature.BASE_TYPE_SIGNATURE: |
| fBuffer.append(Signature.toString(typeSig)); |
| break; |
| case Signature.ARRAY_TYPE_SIGNATURE: |
| appendTypeSignatureLabel(enclosingElement, Signature.getElementType(typeSig), flags); |
| for (int dim= Signature.getArrayCount(typeSig); dim > 0; dim--) { |
| fBuffer.append('[').append(']'); |
| } |
| break; |
| case Signature.CLASS_TYPE_SIGNATURE: |
| String baseType= getSimpleTypeName(enclosingElement, typeSig); |
| fBuffer.append(baseType); |
| |
| String[] typeArguments= Signature.getTypeArguments(typeSig); |
| appendTypeArgumentSignaturesLabel(enclosingElement, typeArguments, flags); |
| break; |
| case Signature.TYPE_VARIABLE_SIGNATURE: |
| fBuffer.append(getSimpleTypeName(enclosingElement, typeSig)); |
| break; |
| case Signature.WILDCARD_TYPE_SIGNATURE: |
| char ch= typeSig.charAt(0); |
| if (ch == Signature.C_STAR) { //workaround for bug 85713 |
| fBuffer.append('?'); |
| } else { |
| if (ch == Signature.C_EXTENDS) { |
| fBuffer.append("? extends "); //$NON-NLS-1$ |
| appendTypeSignatureLabel(enclosingElement, typeSig.substring(1), flags); |
| } else if (ch == Signature.C_SUPER) { |
| fBuffer.append("? super "); //$NON-NLS-1$ |
| appendTypeSignatureLabel(enclosingElement, typeSig.substring(1), flags); |
| } |
| } |
| break; |
| case Signature.CAPTURE_TYPE_SIGNATURE: |
| appendTypeSignatureLabel(enclosingElement, typeSig.substring(1), flags); |
| break; |
| case Signature.INTERSECTION_TYPE_SIGNATURE: |
| String[] typeBounds= Signature.getIntersectionTypeBounds(typeSig); |
| appendTypeBoundsSignaturesLabel(enclosingElement, typeBounds, flags, false); |
| break; |
| case Signature.UNION_TYPE_SIGNATURE: |
| typeBounds= Signature.getUnionTypeBounds(typeSig); |
| appendTypeBoundsSignaturesLabel(enclosingElement, typeBounds, flags, true); |
| break; |
| default: |
| // unknown |
| } |
| } |
| |
| private void appendTypeBoundsSignaturesLabel(IJavaElement enclosingElement, String[] typeArgsSig, long flags, boolean isIntersection) { |
| for (int i = 0; i < typeArgsSig.length; i++) { |
| if (i > 0) { |
| if (isIntersection) { |
| fBuffer.append(" & "); //$NON-NLS-1$ |
| } else { |
| fBuffer.append(" | "); //$NON-NLS-1$ |
| } |
| } |
| appendTypeSignatureLabel(enclosingElement, typeArgsSig[i], flags); |
| } |
| } |
| |
| |
| |
| /** |
| * Returns the simple name of the given type signature. |
| * |
| * @param enclosingElement the enclosing element in which to resolve the signature |
| * @param typeSig a {@link Signature#CLASS_TYPE_SIGNATURE} or {@link Signature#TYPE_VARIABLE_SIGNATURE} |
| * @return the simple name of the given type signature |
| */ |
| protected String getSimpleTypeName(IJavaElement enclosingElement, String typeSig) { |
| return Signature.getSimpleName(Signature.toString(Signature.getTypeErasure(typeSig))); |
| } |
| |
| /** |
| * Returns the simple name of the given member. |
| * |
| * @param enclosingElement the enclosing element |
| * @param typeName the name of the member's declaring type |
| * @param memberName the name of the member |
| * @return the simple name of the member |
| */ |
| protected String getMemberName(IJavaElement enclosingElement, String typeName, String memberName) { |
| return memberName; |
| } |
| |
| private void appendTypeArgumentSignaturesLabel(IJavaElement enclosingElement, String[] typeArgsSig, long flags) { |
| if (typeArgsSig.length > 0) { |
| fBuffer.append(getLT()); |
| for (int i = 0; i < typeArgsSig.length; i++) { |
| if (i > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| appendTypeSignatureLabel(enclosingElement, typeArgsSig[i], flags); |
| } |
| fBuffer.append(getGT()); |
| } |
| } |
| |
| /** |
| * Appends labels for type parameters from a signature. |
| * |
| * @param typeParamSigs the type parameter signature |
| * @param flags flags with render options |
| */ |
| private void appendTypeParameterSignaturesLabel(String[] typeParamSigs, long flags) { |
| if (typeParamSigs.length > 0) { |
| fBuffer.append(getLT()); |
| for (int i = 0; i < typeParamSigs.length; i++) { |
| if (i > 0) { |
| fBuffer.append(JavaElementLabelsCore.COMMA_STRING); |
| } |
| fBuffer.append(Signature.getTypeVariable(typeParamSigs[i])); |
| } |
| fBuffer.append(getGT()); |
| } |
| } |
| |
| /** |
| * Returns the string for rendering the '<code><</code>' character. |
| * |
| * @return the string for rendering '<code><</code>' |
| */ |
| protected String getLT() { |
| return "<"; //$NON-NLS-1$ |
| } |
| |
| /** |
| * Returns the string for rendering the '<code>></code>' character. |
| * |
| * @return the string for rendering '<code>></code>' |
| */ |
| protected String getGT() { |
| return ">"; //$NON-NLS-1$ |
| } |
| |
| /** |
| * Appends the label for a type. Considers the T_* flags. |
| * |
| * @param type the element to render |
| * @param flags the rendering flags. Flags with names starting with 'T_' are considered. |
| */ |
| public void appendTypeLabel(IType type, long flags) { |
| |
| if (getFlag(flags, JavaElementLabelsCore.T_FULLY_QUALIFIED)) { |
| IPackageFragment pack= type.getPackageFragment(); |
| if (!pack.isDefaultPackage()) { |
| appendPackageFragmentLabel(pack, (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| } |
| IJavaElement parent= type.getParent(); |
| if (getFlag(flags, JavaElementLabelsCore.T_FULLY_QUALIFIED | JavaElementLabelsCore.T_CONTAINER_QUALIFIED)) { |
| IType declaringType= type.getDeclaringType(); |
| if (declaringType != null) { |
| appendTypeLabel(declaringType, JavaElementLabelsCore.T_CONTAINER_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| int parentType= parent.getElementType(); |
| if (parentType == IJavaElement.METHOD || parentType == IJavaElement.FIELD || parentType == IJavaElement.INITIALIZER) { // anonymous or local |
| appendElementLabel(parent, 0); |
| fBuffer.append('.'); |
| } |
| } |
| |
| String typeName; |
| boolean isAnonymous= false; |
| if (type.isLambda()) { |
| typeName= "() -> {...}"; //$NON-NLS-1$ |
| try { |
| String[] superInterfaceSignatures= type.getSuperInterfaceTypeSignatures(); |
| if (superInterfaceSignatures.length > 0) { |
| typeName= typeName + ' ' + getSimpleTypeName(type, superInterfaceSignatures[0]); |
| } |
| } catch (JavaModelException e) { |
| //ignore |
| } |
| |
| } else { |
| typeName= getElementName(type); |
| try { |
| isAnonymous= type.isAnonymous(); |
| } catch (JavaModelException e1) { |
| // should not happen, but let's play safe: |
| isAnonymous= typeName.length() == 0; |
| } |
| if (isAnonymous) { |
| try { |
| if (parent instanceof IField && type.isEnum()) { |
| typeName= '{' + JavaElementLabelsCore.ELLIPSIS_STRING + '}'; |
| } else { |
| String supertypeName= null; |
| String[] superInterfaceSignatures= type.getSuperInterfaceTypeSignatures(); |
| if (superInterfaceSignatures.length > 0) { |
| supertypeName= getSimpleTypeName(type, superInterfaceSignatures[0]); |
| } else { |
| String supertypeSignature= type.getSuperclassTypeSignature(); |
| if (supertypeSignature != null) { |
| supertypeName= getSimpleTypeName(type, supertypeSignature); |
| } |
| } |
| if (supertypeName == null) { |
| typeName= JavaElementLabelsMessages.JavaElementLabels_anonym; |
| } else { |
| typeName= Messages.format(JavaElementLabelsMessages.JavaElementLabels_anonym_type, supertypeName); |
| } |
| } |
| } catch (JavaModelException e) { |
| //ignore |
| typeName= JavaElementLabelsMessages.JavaElementLabels_anonym; |
| } |
| } |
| } |
| fBuffer.append(typeName); |
| |
| if (getFlag(flags, JavaElementLabelsCore.T_TYPE_PARAMETERS)) { |
| if (getFlag(flags, JavaElementLabelsCore.USE_RESOLVED) && type.isResolved()) { |
| BindingKey key= new BindingKey(type.getKey()); |
| if (key.isParameterizedType()) { |
| String[] typeArguments= key.getTypeArguments(); |
| appendTypeArgumentSignaturesLabel(type, typeArguments, flags); |
| } else { |
| String[] typeParameters= Signature.getTypeParameters(key.toSignature()); |
| appendTypeParameterSignaturesLabel(typeParameters, flags); |
| } |
| } else if (type.exists()) { |
| try { |
| appendTypeParametersLabels(type.getTypeParameters(), flags); |
| } catch (JavaModelException e) { |
| // ignore |
| } |
| } |
| } |
| |
| // category |
| if (getFlag(flags, JavaElementLabelsCore.T_CATEGORY) && type.exists()) { |
| try { |
| appendCategoryLabel(type, flags); |
| } catch (JavaModelException e) { |
| // ignore |
| } |
| } |
| |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.T_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| IType declaringType= type.getDeclaringType(); |
| if (declaringType == null && type.isBinary() && isAnonymous) { |
| // workaround for Bug 87165: [model] IType#getDeclaringType() does not work for anonymous binary type |
| String tqn= type.getTypeQualifiedName(); |
| int lastDollar= tqn.lastIndexOf('$'); |
| if (lastDollar != 1) { |
| String declaringTypeCF= tqn.substring(0, lastDollar) + ".class"; //$NON-NLS-1$ |
| declaringType= type.getPackageFragment().getOrdinaryClassFile(declaringTypeCF).getType(); |
| try { |
| ISourceRange typeSourceRange= type.getSourceRange(); |
| if (declaringType.exists() && SourceRange.isAvailable(typeSourceRange)) { |
| IJavaElement realParent= declaringType.getTypeRoot().getElementAt(typeSourceRange.getOffset() - 1); |
| if (realParent != null) { |
| parent= realParent; |
| } |
| } |
| } catch (JavaModelException e) { |
| // ignore |
| } |
| } |
| } |
| if (declaringType != null) { |
| appendTypeLabel(declaringType, JavaElementLabelsCore.T_FULLY_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| int parentType= parent.getElementType(); |
| if (parentType == IJavaElement.METHOD || parentType == IJavaElement.FIELD || parentType == IJavaElement.INITIALIZER) { // anonymous or local |
| fBuffer.append('.'); |
| appendElementLabel(parent, 0); |
| } |
| } else { |
| appendPackageFragmentLabel(type.getPackageFragment(), flags & QUALIFIER_FLAGS); |
| } |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| } |
| |
| /** |
| * Returns the string for rendering the {@link IJavaElement#getElementName() element name} of |
| * the given element. |
| * <p> |
| * <strong>Note:</strong> This class only calls this helper for those elements where ( |
| * JavaElementLinks) has the need to render the name differently. |
| * </p> |
| * |
| * @param element the element to render |
| * @return the string for rendering the element name |
| */ |
| protected String getElementName(IJavaElement element) { |
| return element.getElementName(); |
| } |
| |
| /** |
| * Appends the label for a import container, import or package declaration. Considers the D_* flags. |
| * |
| * @param declaration the element to render |
| * @param flags the rendering flags. Flags with names starting with 'D_' are considered. |
| */ |
| public void appendDeclarationLabel(IJavaElement declaration, long flags) { |
| if (getFlag(flags, JavaElementLabelsCore.D_QUALIFIED)) { |
| IJavaElement openable= (IJavaElement) declaration.getOpenable(); |
| if (openable != null) { |
| appendElementLabel(openable, JavaElementLabelsCore.CF_QUALIFIED | JavaElementLabelsCore.CU_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('/'); |
| } |
| } |
| if (declaration.getElementType() == IJavaElement.IMPORT_CONTAINER) { |
| fBuffer.append(JavaElementLabelsMessages.JavaElementLabels_import_container); |
| } else { |
| fBuffer.append(getElementName(declaration)); |
| } |
| // post qualification |
| if (getFlag(flags, JavaElementLabelsCore.D_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| IJavaElement openable= (IJavaElement) declaration.getOpenable(); |
| if (openable != null) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendElementLabel(openable, JavaElementLabelsCore.CF_QUALIFIED | JavaElementLabelsCore.CU_QUALIFIED | (flags & QUALIFIER_FLAGS)); |
| } |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| } |
| |
| /** |
| * Appends the label for a class file. Considers the CF_* flags. |
| * |
| * @param classFile the element to render |
| * @param flags the rendering flags. Flags with names starting with 'CF_' are considered. |
| */ |
| public void appendClassFileLabel(IClassFile classFile, long flags) { |
| if (getFlag(flags, JavaElementLabelsCore.CF_QUALIFIED)) { |
| IPackageFragment pack= (IPackageFragment) classFile.getParent(); |
| if (!pack.isDefaultPackage()) { |
| appendPackageFragmentLabel(pack, (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| } |
| fBuffer.append(classFile.getElementName()); |
| |
| if (getFlag(flags, JavaElementLabelsCore.CF_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendPackageFragmentLabel((IPackageFragment) classFile.getParent(), flags & QUALIFIER_FLAGS); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| } |
| |
| /** |
| * Appends the label for a compilation unit. Considers the CU_* flags. |
| * |
| * @param cu the element to render |
| * @param flags the rendering flags. Flags with names starting with 'CU_' are considered. |
| */ |
| public void appendCompilationUnitLabel(ICompilationUnit cu, long flags) { |
| if (getFlag(flags, JavaElementLabelsCore.CU_QUALIFIED)) { |
| IPackageFragment pack= (IPackageFragment) cu.getParent(); |
| if (!pack.isDefaultPackage()) { |
| appendPackageFragmentLabel(pack, (flags & QUALIFIER_FLAGS)); |
| fBuffer.append('.'); |
| } |
| } |
| fBuffer.append(cu.getElementName()); |
| |
| if (getFlag(flags, JavaElementLabelsCore.CU_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendPackageFragmentLabel((IPackageFragment) cu.getParent(), flags & QUALIFIER_FLAGS); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| } |
| |
| /** |
| * Appends the label for a package fragment. Considers the P_* flags. |
| * |
| * @param pack the element to render |
| * @param flags the rendering flags. Flags with names starting with P_' are considered. |
| */ |
| public void appendPackageFragmentLabel(IPackageFragment pack, long flags) { |
| if (getFlag(flags, JavaElementLabelsCore.P_QUALIFIED)) { |
| appendPackageFragmentRootLabel((IPackageFragmentRoot) pack.getParent(), JavaElementLabelsCore.ROOT_QUALIFIED); |
| fBuffer.append('/'); |
| } |
| if (pack.isDefaultPackage()) { |
| fBuffer.append(JavaElementLabelsCore.DEFAULT_PACKAGE); |
| } else if (getFlag(flags, JavaElementLabelsCore.P_COMPRESSED)) { |
| if (isPackageNameAbbreviationEnabled()) |
| appendAbbreviatedPackageFragment(pack); |
| else |
| appendCompressedPackageFragment(pack); |
| } else { |
| fBuffer.append(getElementName(pack)); |
| } |
| if (getFlag(flags, JavaElementLabelsCore.P_POST_QUALIFIED)) { |
| int offset= fBuffer.length(); |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| appendPackageFragmentRootLabel((IPackageFragmentRoot) pack.getParent(), JavaElementLabelsCore.ROOT_QUALIFIED); |
| if (getFlag(flags, JavaElementLabelsCore.COLORIZE)) { |
| setQualifierStyle(offset); |
| } |
| } |
| } |
| |
| protected boolean isPackageNameAbbreviationEnabled() { |
| return false; |
| } |
| |
| protected void appendCompressedPackageFragment(IPackageFragment pack) { |
| appendCompressedPackageFragment(pack.getElementName()); |
| } |
| |
| protected void refreshPackageNamePattern() { |
| // core does nothing for this |
| } |
| |
| protected void appendCompressedPackageFragment(String elementName) { |
| refreshPackageNamePattern(); |
| if (fgPkgNameLength < 0) { |
| fBuffer.append(elementName); |
| return; |
| } |
| String name= elementName; |
| int start= 0; |
| int dot= name.indexOf('.', start); |
| while (dot > 0) { |
| if (dot - start > fgPkgNameLength-1) { |
| fBuffer.append(fgPkgNamePrefix); |
| if (fgPkgNameChars > 0) |
| fBuffer.append(name.substring(start, Math.min(start+ fgPkgNameChars, dot))); |
| fBuffer.append(fgPkgNamePostfix); |
| } else |
| fBuffer.append(name.substring(start, dot + 1)); |
| start= dot + 1; |
| dot= name.indexOf('.', start); |
| } |
| fBuffer.append(name.substring(start)); |
| } |
| |
| @SuppressWarnings("unused") |
| protected void appendAbbreviatedPackageFragment(IPackageFragment pack) { |
| // core does not do this |
| } |
| |
| |
| /** |
| * Appends the label for a package fragment root. Considers the ROOT_* flags. |
| * |
| * @param root the element to render |
| * @param flags the rendering flags. Flags with names starting with ROOT_' are considered. |
| */ |
| public void appendPackageFragmentRootLabel(IPackageFragmentRoot root, long flags) { |
| // Handle variables different |
| if (getFlag(flags, JavaElementLabelsCore.ROOT_VARIABLE) && appendVariableLabel(root, flags)) { |
| return; |
| } |
| if (root.isArchive()) { |
| appendArchiveLabel(root, flags); |
| } else { |
| appendFolderLabel(root, flags); |
| } |
| } |
| |
| protected void appendModuleLabel(IModuleDescription module, long flags) { |
| fBuffer.append(module.getElementName()); |
| // category |
| if (getFlag(flags, JavaElementLabelsCore.MOD_CATEGORY) && module.exists()) { |
| try { |
| appendCategoryLabel(module, flags); |
| } catch (JavaModelException e) { |
| // ignore |
| } |
| } |
| } |
| |
| private void appendArchiveLabel(IPackageFragmentRoot root, long flags) { |
| boolean external= root.isExternal(); |
| if (external) { |
| appendExternalArchiveLabel(root, flags); |
| } else { |
| appendInternalArchiveLabel(root, flags); |
| } |
| } |
| |
| private boolean appendVariableLabel(IPackageFragmentRoot root, long flags) { |
| try { |
| IClasspathEntry rawEntry= root.getRawClasspathEntry(); |
| if (rawEntry.getEntryKind() == IClasspathEntry.CPE_VARIABLE) { |
| IClasspathEntry entry= JavaModelUtil.getClasspathEntry(root); |
| if (entry.getReferencingEntry() != null) { |
| return false; // not the variable entry itself, but a referenced entry |
| } |
| IPath path= rawEntry.getPath().makeRelative(); |
| |
| if (getFlag(flags, JavaElementLabelsCore.REFERENCED_ROOT_POST_QUALIFIED)) { |
| int segements= path.segmentCount(); |
| if (segements > 0) { |
| fBuffer.append(path.segment(segements - 1)); |
| if (segements > 1) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| fBuffer.append(path.removeLastSegments(1).toOSString()); |
| } |
| } else { |
| fBuffer.append(path.toString()); |
| } |
| } else { |
| fBuffer.append(path.toString()); |
| } |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| if (root.isExternal()) { |
| fBuffer.append(root.getPath().toOSString()); |
| } else { |
| fBuffer.append(root.getPath().makeRelative().toString()); |
| } |
| |
| return true; |
| } |
| } catch (JavaModelException e) { |
| // problems with class path, ignore (bug 202792) |
| return false; |
| } |
| return false; |
| } |
| |
| private void appendExternalArchiveLabel(IPackageFragmentRoot root, long flags) { |
| IPath path; |
| IClasspathEntry classpathEntry= null; |
| try { |
| classpathEntry= JavaModelUtil.getClasspathEntry(root); |
| IPath rawPath= classpathEntry.getPath(); |
| if (classpathEntry.getEntryKind() != IClasspathEntry.CPE_CONTAINER && !rawPath.isAbsolute()) { |
| path= rawPath; |
| } else { |
| path= root.getPath(); |
| } |
| } catch (JavaModelException e) { |
| path= root.getPath(); |
| } |
| if (getFlag(flags, JavaElementLabelsCore.REFERENCED_ROOT_POST_QUALIFIED)) { |
| int segments= path.segmentCount(); |
| if (segments > 0) { |
| fBuffer.append(path.segment(segments - 1)); |
| if (segments > 1 || path.getDevice() != null) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| fBuffer.append(path.removeLastSegments(1).toOSString()); |
| } |
| if (classpathEntry != null) { |
| IClasspathEntry referencingEntry= classpathEntry.getReferencingEntry(); |
| if (referencingEntry != null) { |
| fBuffer.append(NLS.bind(JavaElementLabelsMessages.JavaElementLabels_onClassPathOf, new Object[] { Name.CLASS_PATH.toString(), referencingEntry.getPath().lastSegment() })); |
| } |
| } |
| } else { |
| fBuffer.append(path.toOSString()); |
| } |
| } else { |
| fBuffer.append(path.toOSString()); |
| } |
| } |
| |
| private void appendInternalArchiveLabel(IPackageFragmentRoot root, long flags) { |
| IResource resource= root.getResource(); |
| boolean rootQualified= getFlag(flags, JavaElementLabelsCore.ROOT_QUALIFIED); |
| if (rootQualified) { |
| fBuffer.append(root.getPath().makeRelative().toString()); |
| } else { |
| fBuffer.append(root.getElementName()); |
| boolean referencedPostQualified= getFlag(flags, JavaElementLabelsCore.REFERENCED_ROOT_POST_QUALIFIED); |
| if (referencedPostQualified && isReferenced(root)) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| fBuffer.append(resource.getParent().getFullPath().makeRelative().toString()); |
| } else if (getFlag(flags, JavaElementLabelsCore.ROOT_POST_QUALIFIED)) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| fBuffer.append(root.getParent().getPath().makeRelative().toString()); |
| } |
| if (referencedPostQualified) { |
| try { |
| IClasspathEntry referencingEntry= JavaModelUtil.getClasspathEntry(root).getReferencingEntry(); |
| if (referencingEntry != null) { |
| fBuffer.append(NLS.bind(JavaElementLabelsMessages.JavaElementLabels_onClassPathOf, new Object[] { Name.CLASS_PATH.toString(), referencingEntry.getPath().lastSegment() })); |
| } |
| } catch (JavaModelException e) { |
| // ignore |
| } |
| } |
| } |
| } |
| |
| private void appendFolderLabel(IPackageFragmentRoot root, long flags) { |
| IResource resource= root.getResource(); |
| if (resource == null) { |
| appendExternalArchiveLabel(root, flags); |
| return; |
| } |
| |
| boolean rootQualified= getFlag(flags, JavaElementLabelsCore.ROOT_QUALIFIED); |
| boolean referencedQualified= getFlag(flags, JavaElementLabelsCore.REFERENCED_ROOT_POST_QUALIFIED) && isReferenced(root); |
| if (rootQualified) { |
| fBuffer.append(root.getPath().makeRelative().toString()); |
| } else { |
| IPath projectRelativePath= resource.getProjectRelativePath(); |
| if (projectRelativePath.segmentCount() == 0) { |
| fBuffer.append(resource.getName()); |
| referencedQualified= false; |
| } else { |
| fBuffer.append(projectRelativePath.toString()); |
| } |
| |
| if (referencedQualified) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| fBuffer.append(resource.getProject().getName()); |
| } else if (getFlag(flags, JavaElementLabelsCore.ROOT_POST_QUALIFIED)) { |
| fBuffer.append(JavaElementLabelsCore.CONCAT_STRING); |
| fBuffer.append(root.getParent().getElementName()); |
| } else { |
| return; |
| } |
| } |
| } |
| |
| /** |
| * Returns <code>true</code> if the given package fragment root is |
| * referenced. This means it is a descendant of a different project but is referenced |
| * by the root's parent. Returns <code>false</code> if the given root |
| * doesn't have an underlying resource. |
| * |
| * @param root the package fragment root |
| * @return returns <code>true</code> if the given package fragment root is referenced |
| */ |
| private boolean isReferenced(IPackageFragmentRoot root) { |
| IResource resource= root.getResource(); |
| if (resource != null) { |
| IProject jarProject= resource.getProject(); |
| IProject container= root.getJavaProject().getProject(); |
| return !container.equals(jarProject); |
| } |
| return false; |
| } |
| } |