Java Code Examples for org.eclipse.jdt.internal.corext.util.JavaModelUtil#setComplianceOptions()

/**
 * Returns the compliance options from the given EE. If the result is not <code>null</code>,
 * it contains at least these core options:
 * <ul>
 * <li>{@link JavaCore#COMPILER_COMPLIANCE}</li>
 * <li>{@link JavaCore#COMPILER_SOURCE}</li>
 * <li>{@link JavaCore#COMPILER_CODEGEN_TARGET_PLATFORM}</li>
 * <li>{@link JavaCore#COMPILER_PB_ASSERT_IDENTIFIER}</li>
 * <li>{@link JavaCore#COMPILER_PB_ENUM_IDENTIFIER}</li>
 * <li>{@link JavaCore#COMPILER_CODEGEN_INLINE_JSR_BYTECODE} for compliance levels 1.5 and greater</li>
 * </ul>
 * 
 * @param ee the EE, can be <code>null</code>
 * @return the options, or <code>null</code> if none
 * @since 3.5
 */
public static Map<String, String> getEEOptions(IExecutionEnvironment ee) {
	if (ee == null)
		return null;
	Map<String, String> eeOptions= ee.getComplianceOptions();
	if (eeOptions == null)
		return null;
	
	Object complianceOption= eeOptions.get(JavaCore.COMPILER_COMPLIANCE);
	if (!(complianceOption instanceof String))
		return null;

	// eeOptions can miss some options, make sure they are complete:
	HashMap<String, String> options= new HashMap<String, String>();
	JavaModelUtil.setComplianceOptions(options, (String)complianceOption);
	options.putAll(eeOptions);
	return options;
}
 

@Test
public void testMismatchingReturnTypeOnGenericMethod14() throws Exception {
	Map<String, String> options14 = new HashMap<>(fJProject1.getOptions(false));
	JavaModelUtil.setComplianceOptions(options14, JavaCore.VERSION_1_4);
	fJProject1.setOptions(options14);
	IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);

	StringBuilder buf = new StringBuilder();
	buf.append("package test1;\n");
	buf.append("import java.lang.reflect.AccessibleObject;\n");
	buf.append("public class E {\n");
	buf.append("    void m() {\n");
	buf.append("        new AccessibleObject() {\n");
	buf.append("            public void getAnnotation(Class annotationClass) {\n");
	buf.append("            }\n");
	buf.append("        };\n");
	buf.append("    }\n");
	buf.append("}\n");
	ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

	buf = new StringBuilder();
	buf.append("package test1;\n");
	buf.append("import java.lang.annotation.Annotation;\n");
	buf.append("import java.lang.reflect.AccessibleObject;\n");
	buf.append("public class E {\n");
	buf.append("    void m() {\n");
	buf.append("        new AccessibleObject() {\n");
	buf.append("            public Annotation getAnnotation(Class annotationClass) {\n");
	buf.append("            }\n");
	buf.append("        };\n");
	buf.append("    }\n");
	buf.append("}\n");
	Expected e1 = new Expected("Change return type of 'getAnnotation(..)' to 'Annotation'", buf.toString());

	assertCodeActions(cu, e1);
}
 

private static Type parseSuperType(String superType, boolean isInterface) {
	if (! superType.trim().equals(superType)) {
		return null;
	}

	StringBuffer cuBuff= new StringBuffer();
	if (isInterface)
		cuBuff.append("class __X__ implements "); //$NON-NLS-1$
	else
		cuBuff.append("class __X__ extends "); //$NON-NLS-1$
	int offset= cuBuff.length();
	cuBuff.append(superType).append(" {}"); //$NON-NLS-1$

	ASTParser p= ASTParser.newParser(ASTProvider.SHARED_AST_LEVEL);
	p.setSource(cuBuff.toString().toCharArray());
	Map<String, String> options= new HashMap<String, String>();
	JavaModelUtil.setComplianceOptions(options, JavaModelUtil.VERSION_LATEST);
	p.setCompilerOptions(options);
	CompilationUnit cu= (CompilationUnit) p.createAST(null);
	ASTNode selected= NodeFinder.perform(cu, offset, superType.length());
	if (selected instanceof Name)
		selected= selected.getParent();
	if (selected.getStartPosition() != offset
			|| selected.getLength() != superType.length()
			|| ! (selected instanceof Type)
			|| selected instanceof PrimitiveType) {
		return null;
	}
	Type type= (Type) selected;

	String typeNodeRange= cuBuff.substring(type.getStartPosition(), ASTNodes.getExclusiveEnd(type));
	if (! superType.equals(typeNodeRange)){
		return null;
	}
	return type;
}
 

public static List<ParsedCu> parseCus(IJavaProject javaProject, String compilerCompliance, String text) {
	ASTParser parser= ASTParser.newParser(ASTProvider.SHARED_AST_LEVEL);
	if (javaProject != null) {
		parser.setProject(javaProject);
	} else if (compilerCompliance != null) {
		Map<String, String> options= JavaCore.getOptions();
		JavaModelUtil.setComplianceOptions(options, compilerCompliance);
		parser.setCompilerOptions(options);
	}
	parser.setSource(text.toCharArray());
	parser.setStatementsRecovery(true);
	CompilationUnit unit= (CompilationUnit) parser.createAST(null);

	if (unit.types().size() > 0)
		return parseAsTypes(text, unit);

	parser.setProject(javaProject);
	parser.setSource(text.toCharArray());
	parser.setStatementsRecovery(true);
	parser.setKind(ASTParser.K_CLASS_BODY_DECLARATIONS);
	ASTNode root= parser.createAST(null);
	if (root instanceof TypeDeclaration) {
		List<BodyDeclaration> bodyDeclarations= ((TypeDeclaration) root).bodyDeclarations();
		if (bodyDeclarations.size() > 0)
			return Collections.singletonList(new ParsedCu(text, ASTParser.K_CLASS_BODY_DECLARATIONS, null, null));
	}

	parser.setProject(javaProject);
	parser.setSource(text.toCharArray());
	parser.setStatementsRecovery(true);
	parser.setKind(ASTParser.K_STATEMENTS);
	root= parser.createAST(null);
	if (root instanceof Block) {
		List<Statement> statements= ((Block) root).statements();
		if (statements.size() > 0)
			return Collections.singletonList(new ParsedCu(text, ASTParser.K_STATEMENTS, null, null));
	}

	return Collections.emptyList();
}
 

public JavaPreview(Map<String, String> workingValues, Composite parent) {
		JavaTextTools tools= JavaPlugin.getDefault().getJavaTextTools();
		fPreviewDocument= new Document();
		fWorkingValues= workingValues;
		tools.setupJavaDocumentPartitioner( fPreviewDocument, IJavaPartitions.JAVA_PARTITIONING);

		PreferenceStore prioritizedSettings= new PreferenceStore();
		HashMap<String, String> complianceOptions= new HashMap<String, String>();
		JavaModelUtil.setComplianceOptions(complianceOptions, JavaModelUtil.VERSION_LATEST);
		for (Entry<String, String> complianceOption : complianceOptions.entrySet()) {
			prioritizedSettings.setValue(complianceOption.getKey(), complianceOption.getValue());
		}

		IPreferenceStore[] chain= { prioritizedSettings, JavaPlugin.getDefault().getCombinedPreferenceStore() };
		fPreferenceStore= new ChainedPreferenceStore(chain);
		fSourceViewer= new JavaSourceViewer(parent, null, null, false, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER, fPreferenceStore);
		fSourceViewer.setEditable(false);
		Cursor arrowCursor= fSourceViewer.getTextWidget().getDisplay().getSystemCursor(SWT.CURSOR_ARROW);
		fSourceViewer.getTextWidget().setCursor(arrowCursor);

		// Don't set caret to 'null' as this causes https://bugs.eclipse.org/293263
//		fSourceViewer.getTextWidget().setCaret(null);

		fViewerConfiguration= new SimpleJavaSourceViewerConfiguration(tools.getColorManager(), fPreferenceStore, null, IJavaPartitions.JAVA_PARTITIONING, true);
		fSourceViewer.configure(fViewerConfiguration);
		fSourceViewer.getTextWidget().setFont(JFaceResources.getFont(PreferenceConstants.EDITOR_TEXT_FONT));

		fMarginPainter= new MarginPainter(fSourceViewer);
		final RGB rgb= PreferenceConverter.getColor(fPreferenceStore, AbstractDecoratedTextEditorPreferenceConstants.EDITOR_PRINT_MARGIN_COLOR);
		fMarginPainter.setMarginRulerColor(tools.getColorManager().getColor(rgb));
		fSourceViewer.addPainter(fMarginPainter);

		new JavaSourcePreviewerUpdater();
		fSourceViewer.setDocument(fPreviewDocument);
	}
 

/**
 * Sets the default compiler compliance options based on the current default JRE in the
 * workspace.
 * 
 * @since 3.5
 */
private void setDefaultCompilerComplianceValues() {
	IVMInstall defaultVMInstall= JavaRuntime.getDefaultVMInstall();
	if (defaultVMInstall instanceof IVMInstall2 && isOriginalDefaultCompliance()) {
		String complianceLevel= JavaModelUtil.getCompilerCompliance((IVMInstall2)defaultVMInstall, JavaCore.VERSION_1_4);
		Map<String, String> complianceOptions= new HashMap<String, String>();
		JavaModelUtil.setComplianceOptions(complianceOptions, complianceLevel);
		setDefaultValue(PREF_COMPLIANCE, complianceOptions.get(PREF_COMPLIANCE.getName()));
		setDefaultValue(PREF_PB_ASSERT_AS_IDENTIFIER, complianceOptions.get(PREF_PB_ASSERT_AS_IDENTIFIER.getName()));
		setDefaultValue(PREF_PB_ENUM_AS_IDENTIFIER, complianceOptions.get(PREF_PB_ENUM_AS_IDENTIFIER.getName()));
		setDefaultValue(PREF_SOURCE_COMPATIBILITY, complianceOptions.get(PREF_SOURCE_COMPATIBILITY.getName()));
		setDefaultValue(PREF_CODEGEN_TARGET_PLATFORM, complianceOptions.get(PREF_CODEGEN_TARGET_PLATFORM.getName()));
	}
}
 

private static void setLatestCompliance(Map<String, String> map) {
	JavaModelUtil.setComplianceOptions(map, JavaModelUtil.VERSION_LATEST);
}
 

/**
 * Updates the map to use the latest the source compliance
 * @param map The map to update
 */
public static void setLatestCompliance(Map<String, String> map) {
	JavaModelUtil.setComplianceOptions(map, JavaModelUtil.VERSION_LATEST);
}