com.sun.source.tree.Tree.getKind()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中com.sun.source.tree.Tree.getKind()方法的一些代码示例，展示了Tree.getKind()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Tree.getKind()方法的具体详情如下：
包路径：com.sun.source.tree.Tree
类名称：Tree
方法名：getKind

Tree.getKind介绍

[英]Gets the kind of this tree.
[中]得到了这棵树的类型。

代码示例

代码示例来源：origin: robolectric/robolectric

private static boolean isPartOfMethodInvocation(TreePath idPath) {
 Kind parentKind = idPath.getParentPath().getLeaf().getKind();
 if (parentKind == Kind.METHOD_INVOCATION) {
  // must be an argument
  return true;
 }
 if (parentKind == Kind.MEMBER_SELECT) {
  Tree maybeMethodInvocation = idPath.getParentPath().getParentPath().getLeaf();
  // likely the target of the method invocation
  return maybeMethodInvocation.getKind() == Kind.METHOD_INVOCATION;
 }
 return false;
}

代码示例来源：origin: google/error-prone

/** Returns true if all declarations inside the given compilation unit have been visited. */
 private boolean finishedCompilation(CompilationUnitTree tree) {
  OUTER:
  for (Tree decl : tree.getTypeDecls()) {
   switch (decl.getKind()) {
    case EMPTY_STATEMENT:
     // ignore ";" at the top level, which counts as an empty type decl
     continue OUTER;
    case IMPORT:
     // The spec disallows mixing imports and empty top-level declarations (";"), but
     // javac has a bug that causes it to accept empty declarations interspersed with imports:
     // http://mail.openjdk.java.net/pipermail/compiler-dev/2013-August/006968.html
     //
     // Any import declarations after the first semi are incorrectly added to the list
     // of type declarations, so we have to skip over them here.
     continue OUTER;
    default:
     break;
   }
   if (!seen.contains(decl)) {
    return false;
   }
  }
  return true;
 }
}

代码示例来源：origin: google/error-prone

@Override
public IdentifierTree visitIdentifier(IdentifierTree node, Void aVoid) {
 Symbol nodeSymbol = ASTHelpers.getSymbol(node);
 if (symbols.contains(nodeSymbol) && !isSuppressed(node)) {
  if (getCurrentPath().getParentPath().getLeaf().getKind() != Kind.CASE) {
   builder.prefixWith(node, enclosingReplacement);
   moveTypeAnnotations(node);
   return node;
  }
 }
 return super.visitIdentifier(node, aVoid);
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-java-editor-base

private void typeUsed(Element decl, TreePath expr, boolean methodInvocation) {
  if (decl != null && (expr == null || expr.getLeaf().getKind() == Kind.IDENTIFIER || expr.getLeaf().getKind() == Kind.PARAMETERIZED_TYPE)) {
    if (!isErroneous(decl)) {
      ImportTree imp = element2Import.get(decl);
      if (imp != null) {
        addUsage(imp);
        if (isStar(imp)) {
          //TODO: explain
          handleUnresolvableImports(decl, methodInvocation, false);
        }
      }
    } else {
      handleUnresolvableImports(decl, methodInvocation, true);
      
      for (Entry<Element, ImportTree> e : element2Import.entrySet()) {
        if (importedBySingleImport.contains(e.getKey())) continue;
        
        if (e.getKey().getSimpleName().equals(decl.getSimpleName())) {
          import2Highlight.remove(e.getValue());
        }
      }
    }
  }
}

代码示例来源：origin: dcaoyuan/nbscala

public void run(CompilationController control) throws Exception {
  if (JavaSource.Phase.ELEMENTS_RESOLVED.compareTo(control.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED))<=0) {
    Elements elements = control.getElements();
    Trees trees = control.getTrees();
    Types types = control.getTypes();
    TypeElement applet = elements.getTypeElement("java.applet.Applet");     //NOI18N
    TypeElement japplet = elements.getTypeElement("javax.swing.JApplet");   //NOI18N
    CompilationUnitTree cu = control.getCompilationUnit();
    List<? extends Tree> topLevels = cu.getTypeDecls();
    for (Tree topLevel : topLevels) {
      if (topLevel.getKind() == Tree.Kind.CLASS) {
        TypeElement type = (TypeElement) trees.getElement(TreePath.getPath(cu, topLevel));
        if (type != null) {
          Set<Modifier> modifiers = type.getModifiers();
          if (modifiers.contains(Modifier.PUBLIC) && 
            ((applet != null && types.isSubtype(type.asType(), applet.asType())) 
            || (japplet != null && types.isSubtype(type.asType(), japplet.asType())))) {
              result[0] = true;
              break;
          }
        }
      }
    }
  }
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-debugger-jpda-projects

Tree tree = ci.getTreeUtilities().pathFor(offset).getLeaf();
if (tree.getKind() == Tree.Kind.METHOD) {
  Element el = ci.getTrees().getElement(ci.getTrees().getPath(ci.getCompilationUnit(), tree));

代码示例来源：origin: google/error-prone

path = new TreePath(taskEvent.getCompilationUnit());
verify(seen.add(path.getLeaf()), "Duplicate FLOW event for: %s", taskEvent.getTypeElement());
Context subContext = new SubContext(context);
subContext.put(ErrorProneOptions.class, errorProneOptions);
  return;
 if (path.getLeaf().getKind() == Tree.Kind.COMPILATION_UNIT) {
  transformer.get().apply(new TreePath(compilation), subContext, countingDescriptionListener);

代码示例来源：origin: org.netbeans.api/org-netbeans-modules-java-source-base

public static <T extends Tree> T importFQNs(WorkingCopy copy, T tree) {
  if (tree == null) return null;
  
  TranslateIdentifier ti = new TranslateIdentifier(copy);
  
  //XXX: the TreePath constructed below below depends on javac internals (that elements are attributes of a tree, not a tree path):
  ti.scan(tree.getKind() == Kind.COMPILATION_UNIT ? new TreePath((CompilationUnitTree) tree) : new TreePath(new TreePath(copy.getCompilationUnit()), tree), null);
  
  return (T) copy.getTreeUtilities().translate(tree, ti.translateMap);
}

代码示例来源：origin: google/error-prone

@Override
public Description matchVariable(VariableTree tree, VisitorState state) {
 ExpressionTree initializer = stripNullCheck(tree.getInitializer(), state);
 Tree parent = state.getPath().getParentPath().getLeaf();
 // must be a static class variable with member select initializer
 if (initializer == null
   || initializer.getKind() != MEMBER_SELECT
   || parent.getKind() != CLASS
   || !tree.getModifiers().getFlags().contains(STATIC)) {
  return Description.NO_MATCH;
 }
 MemberSelectTree rhs = (MemberSelectTree) initializer;
 Symbol rhsClass = ASTHelpers.getSymbol(rhs.getExpression());
 Symbol lhsClass = ASTHelpers.getSymbol(parent);
 if (rhsClass != null
   && lhsClass != null
   && rhsClass.equals(lhsClass)
   && rhs.getIdentifier().contentEquals(tree.getName())) {
  return describeForVarDecl(tree, state);
 }
 return Description.NO_MATCH;
}

代码示例来源：origin: google/error-prone

@Override
 @Nullable
 protected Choice<Unifier> defaultAction(Tree tree, @Nullable Unifier unifier) {
  return Choice.condition(allowed().contains(tree.getKind()), unifier)
    .thenChoose(unifications(expression(), tree));
 }
}

代码示例来源：origin: org.netbeans.api/org-netbeans-modules-java-source-base

public static LinkedList<Diff> reformat(String text, TokenSequence<JavaTokenId> tokens, TreePath path, SourcePositions sp, CodeStyle cs, int rightMargin) {
  Pretty pretty = new Pretty(text, tokens, path, sp, cs, 0, text.length(), rightMargin);
  pretty.scan(path, null);
  CompilationUnitTree cut = (CompilationUnitTree) path.getLeaf();
  List<? extends Tree> typeDecls = cut.getTypeDecls();
  int size = typeDecls.size();
  int cnt = size > 0 && org.netbeans.api.java.source.TreeUtilities.CLASS_TREE_KINDS.contains(typeDecls.get(size - 1).getKind()) ? cs.getBlankLinesAfterClass() : 1;
  if (cnt < 1)
    cnt = 1;
  String s = pretty.getNewlines(cnt);
  tokens.moveEnd();
  tokens.movePrevious();
  if (tokens.token().id() != WHITESPACE)
    pretty.diffs.addFirst(new Diff(text.length(), text.length(), s));
  else if (!s.contentEquals(tokens.token().text()))
    pretty.diffs.addFirst(new Diff(tokens.offset(), tokens.offset() + tokens.token().length(), s));
  return pretty.diffs;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-swingapp

@Override
  public void run(CompilationController controller) throws Exception {
    controller.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED);
    for (Tree t: controller.getCompilationUnit().getTypeDecls()) {
      if (TreeUtilities.CLASS_TREE_KINDS.contains(t.getKind())) {
        ClassTree classT = (ClassTree) t;
        if (sourceFile.getName().equals(classT.getSimpleName().toString())) {
          TreePath classTPath = controller.getTrees().getPath(controller.getCompilationUnit(), classT);
          TypeElement classEl = (TypeElement) controller.getTrees().getElement(classTPath);
          result = run(controller, classT, classEl);
          return;
        }
      }
    }
  }
}

代码示例来源：origin: google/error-prone

@Nullable
 private static JCMethodDecl findSurroundingMethod(TreePath path) {
  while (path.getLeaf().getKind() != Kind.METHOD) {
   if (path.getLeaf().getKind() == Kind.LAMBDA_EXPRESSION) {
    // Ignore return statements in lambda expressions. There's no method declaration to suggest
    // annotations for anyway.
    return null;
   }
   path = path.getParentPath();
  }
  return (JCMethodDecl) path.getLeaf();
 }
}

代码示例来源：origin: org.netbeans.api/org-netbeans-modules-java-source-base

public TreePath resolve(CompilationInfo compilationInfo) throws IllegalArgumentException {
  TreePath p = parent.resolve(compilationInfo);
  if (p == null) return null;
  List<Tree> children = listChildren(p.getLeaf());
  if (index < children.size()) {
    Tree t = children.get(index);
    if (t.getKind() == kind) {
      return new TreePath(p, t);
    }
  }
  return null;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-java-editor-base

@Override
public Void visitTypeCast(TypeCastTree tree, EnumSet<UseTypes> d) {
  Tree expr = tree.getExpression();
  
  if (expr.getKind() == Kind.IDENTIFIER) {
    handlePossibleIdentifier(new TreePath(getCurrentPath(), expr), EnumSet.of(UseTypes.READ));
  }
  
  Tree cast = tree.getType();
  
  if (cast.getKind() == Kind.IDENTIFIER) {
    handlePossibleIdentifier(new TreePath(getCurrentPath(), cast), EnumSet.of(UseTypes.READ));
  }
  
  super.visitTypeCast(tree, d);
  return null;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-java-editor-base

private static TreePath findTypePath(TreePath tp) {
  if (!TYPE_PATH_ELEMENT.contains(tp.getLeaf().getKind()))
    return null;
  while (TYPE_PATH_ELEMENT.contains(tp.getParentPath().getLeaf().getKind())) {
    tp = tp.getParentPath();
  }
  return tp;
}

代码示例来源：origin: google/error-prone

@Override
 public boolean apply(Tree tree) {
  switch (tree.getKind()) {
   case CLASS:
    return ((ClassTree) tree).getModifiers().getFlags().contains(STATIC);
   case METHOD:
    return ((MethodTree) tree).getModifiers().getFlags().contains(STATIC);
   case VARIABLE:
    return ((VariableTree) tree).getModifiers().getFlags().contains(STATIC);
   case BLOCK:
    return ((BlockTree) tree).isStatic();
   case ENUM:
   case ANNOTATION_TYPE:
   case INTERFACE:
    return true;
   default:
    throw new AssertionError("unknown member type:" + tree.getKind());
  }
 }
});

代码示例来源：origin: org.netbeans.api/org-netbeans-modules-java-source-base

public static LinkedList<Diff> reformat(CompilationInfo info, TreePath path, CodeStyle cs, int startOffset, int endOffset, boolean templateEdit, int firstLineIndent) {
  Pretty pretty = new Pretty(info, path, cs, startOffset, endOffset, templateEdit);
  if (pretty.indent >= 0) {
    if (firstLineIndent >= 0)
      pretty.indent = pretty.lastIndent = firstLineIndent;
    pretty.scan(path, null);
  }
  if (path.getLeaf().getKind() == Tree.Kind.COMPILATION_UNIT) {
    CompilationUnitTree cut = (CompilationUnitTree) path.getLeaf();
    List<? extends Tree> typeDecls = cut.getTypeDecls();
    int size = typeDecls.size();
    int cnt = size > 0 && org.netbeans.api.java.source.TreeUtilities.CLASS_TREE_KINDS.contains(typeDecls.get(size - 1).getKind()) ? cs.getBlankLinesAfterClass() : 1;
    if (cnt < 1)
      cnt = 1;
    String s = pretty.getNewlines(cnt);
    pretty.tokens.moveEnd();
    pretty.tokens.movePrevious();
    if (pretty.tokens.token().id() != WHITESPACE) {
      if (!pretty.tokens.token().text().toString().endsWith(s)) {
        String text = info.getText();
        pretty.diffs.addFirst(new Diff(text.length(), text.length(), s));
      }
    } else if (!s.contentEquals(pretty.tokens.token().text())) {
      pretty.diffs.addFirst(new Diff(pretty.tokens.offset(), pretty.tokens.offset() + pretty.tokens.token().length(), s));
    }
  }
  return pretty.diffs;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-swingapp

@Override
  public void run(CompilationController controller) throws Exception {
    controller.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED);
    for (Tree t: controller.getCompilationUnit().getTypeDecls()) {
      if (TreeUtilities.CLASS_TREE_KINDS.contains(t.getKind())) {
        ClassTree classT = (ClassTree) t;
        if (fileName.equals(classT.getSimpleName().toString())) {
          Tree superT = classT.getExtendsClause();
          if (superT != null) {
            Trees trees = controller.getTrees();
            TreePath classTPath = trees.getPath(controller.getCompilationUnit(), classT);
            TypeElement classEl = (TypeElement) trees.getElement(classTPath);
            TypeElement appEl = controller.getElements().getTypeElement("org.jdesktop.application.Application"); // NOI18N
            Types types = controller.getTypes();
            TypeMirror tm1 = types.erasure(classEl.asType());
            TypeMirror tm2 = types.erasure(appEl.asType());
            if (types.isSubtype(tm1, tm2)) {
              String clsName = classEl.getQualifiedName().toString();
              if (!clsName.startsWith("org.jdesktop.application.")) { // NOI18N
                result[0] = clsName;
                return;
              }
            }
            break;
          }
        }
      }
    }
  }
}, true);

代码示例来源：origin: google/error-prone

/** Get the outermost class/interface/enum of an element, or null if none. */
private Type getOutermostClass(VisitorState state) {
 TreePath path = state.getPath();
 Type type = null;
 while (path != null) {
  if (path.getLeaf().getKind() == Kind.CLASS
    || path.getLeaf().getKind() == Kind.INTERFACE
    || path.getLeaf().getKind() == Kind.ENUM) {
   type = ASTHelpers.getSymbol(path.getLeaf()).type;
  }
  path = path.getParentPath();
 }
 return type;
}

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