List of usage examples for org.eclipse.jdt.core.dom PackageDeclaration getParent
public final ASTNode getParent()
null if this is the root node. From source file:ast.StructureParse.java
public void setCode(JTextPane textCode) { ASTParser parser = ASTParser.newParser(AST.JLS2); parser.setSource(textCode.getText().toCharArray()); //parser.setSource("/*abc*/".toCharArray()); parser.setKind(ASTParser.K_COMPILATION_UNIT); final CompilationUnit cu = (CompilationUnit) parser.createAST(null); _package = new DefaultMutableTreeNode("root"); codeTree.setRootVisible(false);/* w w w . ja v a 2s . c o m*/ cu.accept(new ASTVisitor() { Set names = new HashSet(); /* * Package declaration */ @Override public boolean visit(PackageDeclaration node) { _package = new DefaultMutableTreeNode(node.getName().toString()); codeTree.setRootVisible(true); System.out.println("Package : " + node.getName().toString()); return false; } /* * Class Declaration. * sub node from package */ @Override public boolean visit(TypeDeclaration node) { String type; if (node.isInterface()) type = "interface "; else type = "class "; _class = new DefaultMutableTreeNode(type + node.getName()); System.out.println(type + node.getName()); _package.add(_class); String superClass = node.getSuperclass() + ""; if (!(superClass.equals("null") || (superClass.equals("")))) { _class.add(new DefaultMutableTreeNode("extends " + superClass)); System.out.println("Extends : " + superClass); } for (Object getInterface : node.superInterfaces()) { _class.add(new DefaultMutableTreeNode("implements " + getInterface)); System.out.println("Implements : " + getInterface); } return true; } /* * method declaration * sub node from class */ @Override public boolean visit(MethodDeclaration node) { _method = new DefaultMutableTreeNode(node.getName()); _class.add(_method); System.out.println("MethodDeclaration : " + node.getName()); return true; } /* * field declaration * sub node from class */ // @Override // public boolean visit(FieldDeclaration node) // { // _field=new DefaultMutableTreeNode(node.toString()); // _class.add(_field); // Object o = node.fragments().get(0); // if(o instanceof VariableDeclarationFragment){ // _method.add(new DefaultMutableTreeNode(o.toString())); // } // return false; // } /* * Variable declaration fragment AST node type * used in field declarations * local variable declarations * sub node from method */ @Override public boolean visit(VariableDeclarationFragment node) { if (node.getParent() instanceof FieldDeclaration) { FieldDeclaration declaration = ((FieldDeclaration) node.getParent()); _class.add(new DefaultMutableTreeNode(declaration.getType().toString())); System.out.println("FieldDeclaration : " + declaration.getType().toString()); } else { _method.add(new DefaultMutableTreeNode(node.toString())); System.out.println("VariableDeclarationFragment : " + node.toString()); } return false; // do not continue to avoid usage info } @Override public boolean visit(VariableDeclarationStatement node) { _method.add(new DefaultMutableTreeNode(node.toString())); System.out.println("VariableDeclarationStatement : " + node.toString()); return false; } /* * Simple Name * A simple name is an identifier other than a keyword, boolean literal ("true", "false") or null literal ("null"). */ @Override public boolean visit(SimpleName node) { if (this.names.contains(node.getIdentifier())) { _method.add(new DefaultMutableTreeNode(node.toString())); System.out.println("SimpleNode Identifier : " + node.toString()); } return false; } /* * Alternate constructor invocation (calling constructor) statement AST node type * For JLS2: */ @Override public boolean visit(SuperConstructorInvocation node) { _constructorCall = new DefaultMutableTreeNode(node); _method.add(_constructorCall); System.out.println("SuperConstructorInvocation : " + node); return false; } /* * method call */ @Override public boolean visit(MethodInvocation node) { _methodCall = new DefaultMutableTreeNode(node); _method.add(_methodCall); System.out.println("MethodInvocation : " + node); return false; } @Override public boolean visit(SuperMethodInvocation node) { _methodCall = new DefaultMutableTreeNode(node); _method.add(_methodCall); System.out.println("SuperMethodInvocation : " + node); return false; } @Override public boolean visit(ReturnStatement node) { _method.add(new DefaultMutableTreeNode(node.toString())); System.out.println("ReturnStatement : " + node.toString()); return false; } @Override public boolean visit(IfStatement node) { String elseExist = ""; _if = new DefaultMutableTreeNode("if (" + node.getExpression() + ")"); _method.add(_if); System.out.println("if : " + node.getExpression()); enclose(node.getThenStatement().toString(), _if); elseExist = node.getElseStatement() + ""; if (!(elseExist.equals("") || elseExist.equals("null"))) { _else = new DefaultMutableTreeNode("else"); _method.add(_else); System.out.println("else : " + node.getElseStatement().toString()); enclose(node.getElseStatement().toString(), _else); } return false; } @Override public boolean visit(EnhancedForStatement node) { _for = new DefaultMutableTreeNode( "for (" + node.getParameter() + " : " + node.getExpression() + ")"); _method.add(_for); System.out.println("EnchancedFor : (" + node.getParameter() + " : " + node.getExpression() + ")"); enclose(node.getBody() + "", _for); return false; } @Override public boolean visit(ForStatement node) { /* * because initial may more than 1. */ String initial = ""; for (int i = 0; i < node.initializers().size(); i++) { initial += node.initializers().get(i); if (node.initializers().size() - 1 != i) initial += ", "; } /* * because increment may more than 1 */ String inc = ""; for (int i = 0; i < node.updaters().size(); i++) { inc += node.updaters().get(i); if (node.updaters().size() - 1 != i) inc += ", "; } _for = new DefaultMutableTreeNode( "for (" + initial + "; " + node.getExpression() + "; " + inc + ")"); _method.add(_for); System.out.println("for (" + initial + "; " + node.getExpression() + "; " + inc + ")"); enclose(node.getBody().toString(), _for); return false; } @Override public boolean visit(WhileStatement node) { _while = new DefaultMutableTreeNode("while " + node.getExpression()); _method.add(_while); System.out.println("WhileStatement : " + node.getExpression()); enclose(node.getBody().toString(), _while); return false; } @Override public boolean visit(DoStatement node) { _do = new DefaultMutableTreeNode("do"); _method.add(_do); System.out.println("Do"); enclose(node.getBody().toString(), _do); _while = new DefaultMutableTreeNode("while(" + node.getExpression() + ")"); _method.add(_while); System.out.println("WhileDo : " + node.getExpression()); return false; } @Override public boolean visit(TryStatement node) { String ada = ""; _try = new DefaultMutableTreeNode("try"); _method.add(_try); System.out.println("try"); enclose(node.getBody().toString(), _try); ada = node.getFinally() + ""; if (!(ada.equals("") || ada.equals("null"))) { _final = new DefaultMutableTreeNode("finally"); _method.add(_final); System.out.println("finall"); enclose(node.getFinally().toString(), _final); } return false; } @Override public boolean visit(CatchClause node) { _catch = new DefaultMutableTreeNode("catch (" + node.getException() + ")"); _method.add(_catch); System.out.println("catch : " + node.getException()); enclose(node.getBody().toString(), _catch); return false; } @Override public boolean visit(Assignment node) { _assignment = new DefaultMutableTreeNode(node.toString()); _method.add(_assignment); System.out.println("Assignment : " + node.toString()); return false; } @Override public boolean visit(ConstructorInvocation node) { _constructorCall = new DefaultMutableTreeNode(node.toString()); _method.add(_constructorCall); System.out.println(node.toString()); return false; } @Override public boolean visit(AnonymousClassDeclaration node) { _constructorCall = new DefaultMutableTreeNode(node.toString()); _method.add(_constructorCall); System.out.println("AnonymousClassDeclaration : " + node.toString()); return false; } @Override public boolean visit(ArrayAccess node) { _class = new DefaultMutableTreeNode(node.toString()); _method.add(_class); System.out.println("AbstrackTypeDeclaration : " + node.toString()); return false; } @Override public boolean visit(ArrayCreation node) { _array = new DefaultMutableTreeNode(node.toString()); _method.add(_array); System.out.println("ArrayCreation : " + node.toString()); return false; } @Override public boolean visit(ArrayInitializer node) { _array = new DefaultMutableTreeNode(node.toString()); System.out.println("ArrayInitialize : " + node.toString()); _method.add(_array); return false; } @Override public boolean visit(AssertStatement node) { _statement = new DefaultMutableTreeNode(node.toString()); System.out.println("AssertStatement : " + node.toString()); _method.add(_statement); return false; } @Override public boolean visit(ContinueStatement node) { _statement = new DefaultMutableTreeNode(node.toString()); System.out.println("ContinueStatement : " + node.toString()); _method.add(_statement); return false; } @Override public boolean visit(SwitchStatement node) { _switch = new DefaultMutableTreeNode("switch (" + node.getExpression() + ")"); System.out.println("switch (" + node.getExpression() + ")"); _method.add(_switch); List getStatement = node.statements(); for (Object st : getStatement) { Matcher _caseMatch = Pattern.compile("^case\\s+.+\\:").matcher(st.toString()); if (_caseMatch.find()) { _case = new DefaultMutableTreeNode(_caseMatch.group()); _switch.add(_case); } enclose(st.toString(), _case); Matcher _breakMatch = Pattern.compile("^break\\s*.*;").matcher(st.toString()); if (_breakMatch.find()) { _break = new DefaultMutableTreeNode(_breakMatch.group()); _case.add(_break); } } return false; } @Override public boolean visit(ClassInstanceCreation node) { _constructorCall = new DefaultMutableTreeNode(node.toString()); System.out.println("ClassInstanceCreation : " + node.toString()); _method.add(_constructorCall); return false; } }); // model = new DefaultTreeModel(_package); // model.reload(); // codeTree.setModel(model); codeTree.setModel(new DefaultTreeModel(_package) { public void reload(TreeNode node) { if (node != null) { fireTreeStructureChanged(this, getPathToRoot(node), null, null); } } }); codeTree.setCellRenderer(new TreeRender()); // ((DefaultTreeModel)codeTree.getModel()).reload(); for (int i = 0; i < codeTree.getRowCount(); i++) codeTree.expandRow(i); }
From source file:ca.mcgill.cs.swevo.jayfx.ASTCrawler.java
License:Open Source License
@Override public boolean visit(final PackageDeclaration pNode) { final IPackageBinding binding = pNode.resolveBinding(); if (ASTCrawler.checkForNull(binding)) return false; final IElement packageElem = this.convertBinding(binding); this.aDB.addElement(packageElem, binding.getModifiers()); final CompilationUnit parent = (CompilationUnit) pNode.getParent(); @SuppressWarnings("rawtypes") final List containedTypes = parent.types(); for (@SuppressWarnings("rawtypes") final Iterator it = containedTypes.iterator(); it.hasNext();) { final AbstractTypeDeclaration type = (AbstractTypeDeclaration) it.next(); final ITypeBinding typeBinding = type.resolveBinding(); final IElement typeElem = ASTCrawler.convertBinding(typeBinding); this.aDB.addElement(typeElem, typeBinding.getModifiers()); this.aDB.addRelation(packageElem, Relation.CONTAINS, typeElem); }/*from w w w . ja va 2s . c om*/ return true; }
From source file:com.facebook.buck.jvm.java.JavaFileParser.java
License:Apache License
public JavaFileFeatures extractFeaturesFromJavaCode(String code) { // For now, we will harcode this. Ultimately, we probably want to make this configurable via // .buckconfig. For example, the Buck project itself is diligent about disallowing wildcard // imports, but the one exception is the Java code generated via Thrift in src-gen. boolean shouldThrowForUnsupportedWildcardImport = false; AtomicBoolean isPoisonedByUnsupportedWildcardImport = new AtomicBoolean(false); CompilationUnit compilationUnit = makeCompilationUnitFromSource(code); ImmutableSortedSet.Builder<String> providedSymbols = ImmutableSortedSet.naturalOrder(); ImmutableSortedSet.Builder<String> requiredSymbols = ImmutableSortedSet.naturalOrder(); ImmutableSortedSet.Builder<String> exportedSymbols = ImmutableSortedSet.naturalOrder(); ImmutableSortedSet.Builder<String> requiredSymbolsFromExplicitImports = ImmutableSortedSet.naturalOrder(); compilationUnit.accept(new ASTVisitor() { @Nullable//from www .ja va 2 s . c o m private String packageName; /** Maps simple name to fully-qualified name. */ private Map<String, String> simpleImportedTypes = new HashMap<>(); /** * Maps wildcard import prefixes, such as {@code "java.util"} to the types in the * respective package if a wildcard import such as {@code import java.util.*} is used. */ private Map<String, ImmutableSet<String>> wildcardImports = new HashMap<>(); @Override public boolean visit(PackageDeclaration node) { Preconditions.checkState(packageName == null, "There should be at most one package declaration"); packageName = node.getName().getFullyQualifiedName(); return false; } // providedSymbols @Override public boolean visit(TypeDeclaration node) { // Local classes can be declared inside of methods. Skip over these. if (node.getParent() instanceof TypeDeclarationStatement) { return true; } String fullyQualifiedName = getFullyQualifiedTypeName(node); if (fullyQualifiedName != null) { providedSymbols.add(fullyQualifiedName); } @SuppressWarnings("unchecked") List<Type> interfaceTypes = node.superInterfaceTypes(); for (Type interfaceType : interfaceTypes) { tryAddType(interfaceType, DependencyType.EXPORTED); } Type superclassType = node.getSuperclassType(); if (superclassType != null) { tryAddType(superclassType, DependencyType.EXPORTED); } return true; } @Override public boolean visit(EnumDeclaration node) { String fullyQualifiedName = getFullyQualifiedTypeName(node); if (fullyQualifiedName != null) { providedSymbols.add(fullyQualifiedName); } return true; } @Override public boolean visit(AnnotationTypeDeclaration node) { String fullyQualifiedName = getFullyQualifiedTypeName(node); if (fullyQualifiedName != null) { providedSymbols.add(fullyQualifiedName); } return true; } // requiredSymbols /** * Uses heuristics to try to figure out what type of QualifiedName this is. Returns a * non-null value if this is believed to be a reference that qualifies as a "required * symbol" relationship. */ @Override public boolean visit(QualifiedName node) { QualifiedName ancestor = findMostQualifiedAncestor(node); ASTNode parent = ancestor.getParent(); if (!(parent instanceof PackageDeclaration) && !(parent instanceof ImportDeclaration)) { String symbol = ancestor.getFullyQualifiedName(); // If it does not start with an uppercase letter, it is probably because it is a // property lookup. if (CharMatcher.javaUpperCase().matches(symbol.charAt(0))) { addTypeFromDotDelimitedSequence(symbol, DependencyType.REQUIRED); } } return false; } /** * @param expr could be "Example", "Example.field", "com.example.Example". Note it could * also be a built-in type, such as "java.lang.Integer", in which case it will not be * added to the set of required symbols. */ private void addTypeFromDotDelimitedSequence(String expr, DependencyType dependencyType) { // At this point, symbol could be `System.out`. We want to reduce it to `System` and // then check it against JAVA_LANG_TYPES. if (startsWithUppercaseChar(expr)) { int index = expr.indexOf('.'); if (index >= 0) { String leftmostComponent = expr.substring(0, index); if (JAVA_LANG_TYPES.contains(leftmostComponent)) { return; } } } expr = qualifyWithPackageNameIfNecessary(expr); addSymbol(expr, dependencyType); } @Override public boolean visit(ImportDeclaration node) { String fullyQualifiedName = node.getName().getFullyQualifiedName(); // Apparently, "on demand" means "uses a wildcard," such as "import java.util.*". // Although we can choose to prohibit these in our own code, it is much harder to // enforce for third-party code. As such, we will tolerate these for some of the common // cases. if (node.isOnDemand()) { ImmutableSet<String> value = SUPPORTED_WILDCARD_IMPORTS.get(fullyQualifiedName); if (value != null) { wildcardImports.put(fullyQualifiedName, value); return false; } else if (shouldThrowForUnsupportedWildcardImport) { throw new RuntimeException(String.format( "Use of wildcard 'import %s.*' makes it impossible to statically determine " + "required symbols in this file. Please enumerate explicit imports.", fullyQualifiedName)); } else { isPoisonedByUnsupportedWildcardImport.set(true); return false; } } // Only worry about the dependency on the enclosing type. Optional<String> simpleName = getSimpleNameFromFullyQualifiedName(fullyQualifiedName); if (simpleName.isPresent()) { String name = simpleName.get(); int index = fullyQualifiedName.indexOf("." + name); String enclosingType = fullyQualifiedName.substring(0, index + name.length() + 1); requiredSymbolsFromExplicitImports.add(enclosingType); simpleImportedTypes.put(name, enclosingType); } else { LOG.warn("Suspicious import lacks obvious enclosing type: %s", fullyQualifiedName); // The one example we have seen of this in the wild is // "org.whispersystems.curve25519.java.curve_sigs". In practice, we still need to add // it as a required symbol in this case. requiredSymbols.add(fullyQualifiedName); } return false; } @Override public boolean visit(MethodInvocation node) { if (node.getExpression() == null) { return true; } String receiver = node.getExpression().toString(); if (looksLikeAType(receiver)) { addTypeFromDotDelimitedSequence(receiver, DependencyType.REQUIRED); } return true; } /** An annotation on a member with zero arguments. */ @Override public boolean visit(MarkerAnnotation node) { DependencyType dependencyType = findDependencyTypeForAnnotation(node); addSimpleTypeName(node.getTypeName(), dependencyType); return true; } /** An annotation on a member with named arguments. */ @Override public boolean visit(NormalAnnotation node) { DependencyType dependencyType = findDependencyTypeForAnnotation(node); addSimpleTypeName(node.getTypeName(), dependencyType); return true; } /** An annotation on a member with a single, unnamed argument. */ @Override public boolean visit(SingleMemberAnnotation node) { DependencyType dependencyType = findDependencyTypeForAnnotation(node); addSimpleTypeName(node.getTypeName(), dependencyType); return true; } private DependencyType findDependencyTypeForAnnotation(Annotation annotation) { ASTNode parentNode = annotation.getParent(); if (parentNode == null) { return DependencyType.REQUIRED; } if (parentNode instanceof BodyDeclaration) { // Note that BodyDeclaration is an abstract class. Its subclasses are things like // FieldDeclaration and MethodDeclaration. We want to be sure that an annotation on // any non-private declaration is considered an exported symbol. BodyDeclaration declaration = (BodyDeclaration) parentNode; int modifiers = declaration.getModifiers(); if ((modifiers & Modifier.PRIVATE) == 0) { return DependencyType.EXPORTED; } } return DependencyType.REQUIRED; } @Override public boolean visit(SimpleType node) { // This method is responsible for finding the overwhelming majority of the required // symbols in the AST. tryAddType(node, DependencyType.REQUIRED); return true; } // exportedSymbols @Override public boolean visit(MethodDeclaration node) { // Types from private method signatures need not be exported. if ((node.getModifiers() & Modifier.PRIVATE) != 0) { return true; } Type returnType = node.getReturnType2(); if (returnType != null) { tryAddType(returnType, DependencyType.EXPORTED); } @SuppressWarnings("unchecked") List<SingleVariableDeclaration> params = node.parameters(); for (SingleVariableDeclaration decl : params) { tryAddType(decl.getType(), DependencyType.EXPORTED); } @SuppressWarnings("unchecked") List<Type> exceptions = node.thrownExceptionTypes(); for (Type exception : exceptions) { tryAddType(exception, DependencyType.EXPORTED); } return true; } @Override public boolean visit(FieldDeclaration node) { // Types from private fields need not be exported. if ((node.getModifiers() & Modifier.PRIVATE) == 0) { tryAddType(node.getType(), DependencyType.EXPORTED); } return true; } private void tryAddType(Type type, DependencyType dependencyType) { if (type.isSimpleType()) { SimpleType simpleType = (SimpleType) type; Name simpleTypeName = simpleType.getName(); String simpleName = simpleTypeName.toString(); // For a Type such as IExample<T>, both "IExample" and "T" will be submitted here as // simple types. As such, we use this imperfect heuristic to filter out "T" from being // added. Note that this will erroneously exclude "URI". In practice, this should // generally be OK. For example, assuming "URI" is also imported, then at least it // will end up in the set of required symbols. To this end, we perform a second check // for "all caps" types to see if there is a corresponding import and if it should be // exported rather than simply required. if (!CharMatcher.javaUpperCase().matchesAllOf(simpleName) || (dependencyType == DependencyType.EXPORTED && simpleImportedTypes.containsKey(simpleName))) { addSimpleTypeName(simpleTypeName, dependencyType); } } else if (type.isArrayType()) { ArrayType arrayType = (ArrayType) type; tryAddType(arrayType.getElementType(), dependencyType); } else if (type.isParameterizedType()) { ParameterizedType parameterizedType = (ParameterizedType) type; tryAddType(parameterizedType.getType(), dependencyType); @SuppressWarnings("unchecked") List<Type> argTypes = parameterizedType.typeArguments(); for (Type argType : argTypes) { tryAddType(argType, dependencyType); } } } private void addSimpleTypeName(Name simpleTypeName, DependencyType dependencyType) { String simpleName = simpleTypeName.toString(); if (JAVA_LANG_TYPES.contains(simpleName)) { return; } String fullyQualifiedNameForSimpleName = simpleImportedTypes.get(simpleName); if (fullyQualifiedNameForSimpleName != null) { // May need to promote from required to exported in this case. if (dependencyType == DependencyType.EXPORTED) { addSymbol(fullyQualifiedNameForSimpleName, DependencyType.EXPORTED); } return; } // For well-behaved source code, this will always be empty, so don't even bother to // create the iterator most of the time. if (!wildcardImports.isEmpty()) { for (Map.Entry<String, ImmutableSet<String>> entry : wildcardImports.entrySet()) { Set<String> types = entry.getValue(); if (types.contains(simpleName)) { String packageName = entry.getKey(); addSymbol(packageName + "." + simpleName, dependencyType); return; } } } String symbol = simpleTypeName.getFullyQualifiedName(); symbol = qualifyWithPackageNameIfNecessary(symbol); addSymbol(symbol, dependencyType); } private void addSymbol(String symbol, DependencyType dependencyType) { ((dependencyType == DependencyType.REQUIRED) ? requiredSymbols : exportedSymbols).add(symbol); } private String qualifyWithPackageNameIfNecessary(String symbol) { if (!startsWithUppercaseChar(symbol)) { return symbol; } // If the symbol starts with a capital letter, then we assume that it is a reference to // a type in the same package. int index = symbol.indexOf('.'); if (index >= 0) { symbol = symbol.substring(0, index); } if (packageName != null) { symbol = packageName + "." + symbol; } return symbol; } }); // TODO(mbolin): Special treatment for exportedSymbols when poisoned by wildcard import. ImmutableSortedSet<String> totalExportedSymbols = exportedSymbols.build(); // If we were poisoned by an unsupported wildcard import, then we should rely exclusively on // the explicit imports to determine the required symbols. Set<String> totalRequiredSymbols = new HashSet<>(); if (isPoisonedByUnsupportedWildcardImport.get()) { totalRequiredSymbols.addAll(requiredSymbolsFromExplicitImports.build()); } else { totalRequiredSymbols.addAll(requiredSymbolsFromExplicitImports.build()); totalRequiredSymbols.addAll(requiredSymbols.build()); } // Make sure that required and exported symbols are disjoint sets. totalRequiredSymbols.removeAll(totalExportedSymbols); return new JavaFileFeatures(providedSymbols.build(), ImmutableSortedSet.copyOf(totalRequiredSymbols), totalExportedSymbols); }
From source file:org.spoofax.interpreter.adapter.ecj.ECJFactory.java
License:LGPL
private PackageDeclaration asPackageDeclaration(IStrategoTerm term) { PackageDeclaration x = ((WrappedPackageDeclaration) term).getWrappee(); return x.getParent() == null && x.getAST() == ast ? x : (PackageDeclaration) ASTNode.copySubtree(ast, x); }