private static String getName(
      final PsiClass psiClass, final LookupItem<?> item, boolean diamond) {
    if (item instanceof JavaPsiClassReferenceElement) {
      String forced = ((JavaPsiClassReferenceElement) item).getForcedPresentableName();
      if (forced != null) {
        return forced;
      }
    }

    String name = PsiUtilCore.getName(psiClass);

    if (item.getAttribute(LookupItem.FORCE_QUALIFY) != null) {
      if (psiClass.getContainingClass() != null) {
        name = psiClass.getContainingClass().getName() + "." + name;
      }
    }

    if (diamond) {
      return name + "<>";
    }

    PsiSubstitutor substitutor = (PsiSubstitutor) item.getAttribute(LookupItem.SUBSTITUTOR);
    if (substitutor != null) {
      final PsiTypeParameter[] params = psiClass.getTypeParameters();
      if (params.length > 0) {
        return name + formatTypeParameters(substitutor, params);
      }
    }

    return StringUtil.notNullize(name);
  }
 private static void addPathCompletions(
     @NotNull CompletionResultSet result,
     @NotNull BipartiteString caretBipartiteElementText,
     @NotNull VirtualFile basePath,
     boolean directoryExpected) {
   ParentDirWithLastComponentPrefix parentWithLastComponentPrefix =
       findParentDirWithLastComponentPrefix(basePath, caretBipartiteElementText.getPrefix());
   if (parentWithLastComponentPrefix != null) {
     PrefixMatcher matcher =
         new StrictPrefixMatcher(parentWithLastComponentPrefix.getLastComponentPrefix(), false);
     result = result.withPrefixMatcher(matcher);
     VirtualFile parentFile = parentWithLastComponentPrefix.getParent();
     VirtualFile[] children = parentFile.getChildren();
     Character dirSeparatorSuffix =
         extractDirectoryTrailingFileSeparator(caretBipartiteElementText);
     if (parentFile.isDirectory()) {
       result.addElement(LookupItem.fromString(".."));
     }
     for (VirtualFile child : children) {
       if (child.isDirectory() || !directoryExpected) {
         String name = child.getName();
         if (child.isDirectory() && dirSeparatorSuffix != null) {
           name += dirSeparatorSuffix;
         }
         result.addElement(LookupItem.fromString(name));
       }
     }
   }
 }
  private static void addResult(
      CompletionResultSet result, Collection<Lookup> collection, PsiElement position, int offset) {
    result = result.withPrefixMatcher(findPrefixStatic(position, offset));

    for (Lookup lookup : collection) {
      final LookupItem<Lookup> item = new LookupItem<>(lookup, lookup.toString());
      item.setInsertHandler(INSERT_HANDLER);
      if (lookup.isKeyword()) {
        item.setBold();
      }
      result.addElement(item);
    }
  }
  @Nullable
  private static AutoCompletionPolicy getAutocompletionPolicy(LookupElement element) {
    final AutoCompletionPolicy policy = AutoCompletionPolicy.getPolicy(element);
    if (policy != null) {
      return policy;
    }

    final LookupItem item = element.as(LookupItem.CLASS_CONDITION_KEY);
    if (item != null) {
      return item.getAutoCompletionPolicy();
    }

    return null;
  }
 @Nullable
 private static Object createSubclassLookupValue(
     @NotNull final PsiPackage context, @NotNull final PsiClass clazz) {
   String name = clazz.getQualifiedName();
   if (name == null) return null;
   final String pack = context.getQualifiedName();
   if (pack.length() > 0) {
     if (name.startsWith(pack)) {
       name = name.substring(pack.length() + 1);
     } else {
       return null;
     }
   }
   final LookupItem<PsiClass> lookup =
       LookupElementFactoryImpl.getInstance().createLookupElement(clazz, name);
   lookup.addLookupStrings(clazz.getName());
   return JavaCompletionUtil.setShowFQN(lookup).setTailType(TailType.NONE);
 }
  public static boolean insertTail(
      InsertionContext context, LookupElement item, TailType tailType, boolean hasTail) {
    TailType toInsert = tailType;
    LookupItem<?> lookupItem = item.as(LookupItem.CLASS_CONDITION_KEY);
    if (lookupItem == null
        || lookupItem.getAttribute(LookupItem.TAIL_TYPE_ATTR) != TailType.UNKNOWN) {
      if (!hasTail
          && item.getObject() instanceof PsiMethod
          && ((PsiMethod) item.getObject()).getReturnType() == PsiType.VOID) {
        PsiDocumentManager.getInstance(context.getProject()).commitAllDocuments();
        if (psiElement()
            .beforeLeaf(psiElement().withText("."))
            .accepts(context.getFile().findElementAt(context.getTailOffset() - 1))) {
          return false;
        }

        boolean insertAdditionalSemicolon = true;
        final PsiReferenceExpression referenceExpression =
            PsiTreeUtil.getTopmostParentOfType(
                context.getFile().findElementAt(context.getStartOffset()),
                PsiReferenceExpression.class);
        if (referenceExpression instanceof PsiMethodReferenceExpression
            && LambdaHighlightingUtil.insertSemicolon(referenceExpression.getParent())) {
          insertAdditionalSemicolon = false;
        } else if (referenceExpression != null) {
          PsiElement parent = referenceExpression.getParent();
          if (parent instanceof PsiMethodCallExpression) {
            parent = parent.getParent();
          }
          if (parent instanceof PsiLambdaExpression
              && !LambdaHighlightingUtil.insertSemicolonAfter((PsiLambdaExpression) parent)) {
            insertAdditionalSemicolon = false;
          }
        }
        if (insertAdditionalSemicolon) {
          toInsert = TailType.SEMICOLON;
        }
      }
    }
    toInsert.processTail(context.getEditor(), context.getTailOffset());
    return true;
  }
Exemple #7
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  protected void addLookupItem(
      Set<LookupElement> set,
      TailType tailType,
      @NotNull Object completion,
      final PsiFile file,
      final CompletionVariant variant) {
    LookupElement ret = objectToLookupItem(completion);
    if (ret == null) return;
    if (!(ret instanceof LookupItem)) {
      set.add(ret);
      return;
    }

    LookupItem item = (LookupItem) ret;

    final InsertHandler insertHandler = variant.getInsertHandler();
    if (insertHandler != null && item.getInsertHandler() == null) {
      item.setInsertHandler(insertHandler);
      item.setTailType(TailType.UNKNOWN);
    } else if (tailType != TailType.NONE) {
      item.setTailType(tailType);
    }
    final Map<Object, Object> itemProperties = variant.getItemProperties();
    for (final Object key : itemProperties.keySet()) {
      item.setAttribute(key, itemProperties.get(key));
    }

    set.add(ret);
  }
  public static void renderClassItem(
      LookupElementPresentation presentation, LookupItem item, PsiClass psiClass, boolean diamond) {
    if (!(psiClass instanceof PsiTypeParameter)) {
      presentation.setIcon(DefaultLookupItemRenderer.getRawIcon(item, presentation.isReal()));
    }

    final boolean bold = item.getAttribute(LookupItem.HIGHLIGHTED_ATTR) != null;
    boolean strikeout = JavaElementLookupRenderer.isToStrikeout(item);
    presentation.setItemText(getName(psiClass, item, diamond));
    presentation.setStrikeout(strikeout);
    presentation.setItemTextBold(bold);

    String tailText = StringUtil.notNullize((String) item.getAttribute(LookupItem.TAIL_TEXT_ATTR));
    PsiSubstitutor substitutor = (PsiSubstitutor) item.getAttribute(LookupItem.SUBSTITUTOR);

    if (item instanceof PsiTypeLookupItem
        && ((PsiTypeLookupItem) item).isIndicateAnonymous()
        && (psiClass.isInterface() || psiClass.hasModifierProperty(PsiModifier.ABSTRACT))) {
      tailText = "{...}" + tailText;
    }
    if (substitutor == null && !diamond && psiClass.getTypeParameters().length > 0) {
      tailText =
          "<"
              + StringUtil.join(
                  psiClass.getTypeParameters(),
                  new Function<PsiTypeParameter, String>() {
                    @Override
                    public String fun(PsiTypeParameter psiTypeParameter) {
                      return psiTypeParameter.getName();
                    }
                  },
                  "," + (showSpaceAfterComma(psiClass) ? " " : ""))
              + ">"
              + tailText;
    }
    presentation.setTailText(tailText, true);
  }
Exemple #9
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  public static LookupElement objectToLookupItem(Object object) {
    if (object instanceof LookupElement) return (LookupElement) object;

    String s = null;
    TailType tailType = TailType.NONE;
    if (object instanceof PsiElement) {
      s = PsiUtilBase.getName((PsiElement) object);
    } else if (object instanceof PsiMetaData) {
      s = ((PsiMetaData) object).getName();
    } else if (object instanceof String) {
      s = (String) object;
    } else if (object instanceof Template) {
      s = ((Template) object).getKey();
    } else if (object instanceof PresentableLookupValue) {
      s = ((PresentableLookupValue) object).getPresentation();
    } else {
      LOG.assertTrue(
          false,
          "Null string for object: "
              + object
              + " of class "
              + (object != null ? object.getClass() : null));
    }

    LookupItem item = new LookupItem(object, s);

    if (object instanceof LookupValueWithUIHint && ((LookupValueWithUIHint) object).isBold()) {
      item.setBold();
    }
    if (object instanceof LookupValueWithTail) {
      item.setAttribute(
          LookupItem.TAIL_TEXT_ATTR, " " + ((LookupValueWithTail) object).getTailText());
    }
    item.setAttribute(CompletionUtil.TAIL_TYPE_ATTR, tailType);
    return item;
  }
 private static void addTopLevelKeysCompletionIfNeeded(
     @NotNull CompletionParameters parameters,
     @NotNull CompletionResultSet result,
     @NotNull BipartiteString caretBipartiteElementText) {
   PsiElement element = parameters.getPosition();
   YAMLDocument yamlDocument = ObjectUtils.tryCast(element.getParent(), YAMLDocument.class);
   if (yamlDocument == null) {
     yamlDocument =
         JstdConfigFileUtils.getVerifiedHierarchyHead(
             element.getParent(), new Class[] {YAMLKeyValue.class}, YAMLDocument.class);
   }
   if (yamlDocument != null) {
     String prefix = caretBipartiteElementText.getPrefix();
     result = result.withPrefixMatcher(prefix);
     for (String key : JstdConfigFileUtils.VALID_TOP_LEVEL_KEYS) {
       if (key.startsWith(prefix)) {
         result.addElement(LookupItem.fromString(key + ":"));
       }
     }
   }
 }
  public void fillCompletions(
      CompletionParameters parameters, final Consumer<LookupElement> result) {
    final PsiElement position = parameters.getPosition();
    if (PsiTreeUtil.getParentOfType(position, PsiComment.class, false) != null) {
      return;
    }

    PsiStatement statement = PsiTreeUtil.getParentOfType(position, PsiExpressionStatement.class);
    if (statement == null) {
      statement = PsiTreeUtil.getParentOfType(position, PsiDeclarationStatement.class);
    }
    PsiElement prevLeaf = PsiTreeUtil.prevVisibleLeaf(position);
    if (statement != null
        && statement.getTextRange().getStartOffset() == position.getTextRange().getStartOffset()) {
      if (!psiElement()
          .withSuperParent(2, PsiSwitchStatement.class)
          .afterLeaf("{")
          .accepts(statement)) {
        PsiTryStatement tryStatement = PsiTreeUtil.getParentOfType(prevLeaf, PsiTryStatement.class);
        if (tryStatement == null
            || tryStatement.getCatchSections().length > 0
            || tryStatement.getFinallyBlock() != null) {
          result.consume(
              new OverrideableSpace(
                  createKeyword(position, PsiKeyword.FINAL), TailType.HUMBLE_SPACE_BEFORE_WORD));
        }
      }
    }

    if (isStatementPosition(position)) {
      if (PsiTreeUtil.getParentOfType(position, PsiSwitchStatement.class, false, PsiMember.class)
          != null) {
        result.consume(
            new OverrideableSpace(createKeyword(position, PsiKeyword.CASE), TailType.INSERT_SPACE));
        result.consume(
            new OverrideableSpace(
                createKeyword(position, PsiKeyword.DEFAULT), TailType.CASE_COLON));
        if (START_SWITCH.accepts(position)) {
          return;
        }
      }

      addBreakContinue(result, position);
      addStatementKeywords(result, position);
    }

    if (SUPER_OR_THIS_PATTERN.accepts(position)) {
      final boolean afterDot = AFTER_DOT.accepts(position);
      final boolean insideQualifierClass = isInsideQualifierClass(position);
      final boolean insideInheritorClass =
          PsiUtil.isLanguageLevel8OrHigher(position) && isInsideInheritorClass(position);
      if (!afterDot || insideQualifierClass || insideInheritorClass) {
        if (!afterDot || insideQualifierClass) {
          result.consume(createKeyword(position, PsiKeyword.THIS));
        }

        final LookupItem superItem = (LookupItem) createKeyword(position, PsiKeyword.SUPER);
        if (psiElement()
            .afterLeaf(psiElement().withText("{").withSuperParent(2, psiMethod().constructor(true)))
            .accepts(position)) {
          final PsiMethod method =
              PsiTreeUtil.getParentOfType(position, PsiMethod.class, false, PsiClass.class);
          assert method != null;
          final boolean hasParams = superConstructorHasParameters(method);
          superItem.setInsertHandler(
              new ParenthesesInsertHandler<LookupElement>() {
                @Override
                protected boolean placeCaretInsideParentheses(
                    InsertionContext context, LookupElement item) {
                  return hasParams;
                }

                @Override
                public void handleInsert(InsertionContext context, LookupElement item) {
                  super.handleInsert(context, item);
                  TailType.insertChar(context.getEditor(), context.getTailOffset(), ';');
                }
              });
        }

        result.consume(superItem);
      }
    }

    if (isExpressionPosition(position)) {
      if (PsiTreeUtil.getParentOfType(position, PsiAnnotation.class) == null) {
        result.consume(
            TailTypeDecorator.withTail(
                createKeyword(position, PsiKeyword.NEW), TailType.INSERT_SPACE));
        result.consume(createKeyword(position, PsiKeyword.NULL));
      }
      if (mayExpectBoolean(parameters)) {
        result.consume(createKeyword(position, PsiKeyword.TRUE));
        result.consume(createKeyword(position, PsiKeyword.FALSE));
      }
    }

    PsiFile file = position.getContainingFile();
    if (!(file instanceof PsiExpressionCodeFragment)
        && !(file instanceof PsiJavaCodeReferenceCodeFragment)
        && !(file instanceof PsiTypeCodeFragment)) {
      if (prevLeaf == null) {
        result.consume(
            new OverrideableSpace(
                createKeyword(position, PsiKeyword.PACKAGE), TailType.HUMBLE_SPACE_BEFORE_WORD));
        result.consume(
            new OverrideableSpace(
                createKeyword(position, PsiKeyword.IMPORT), TailType.HUMBLE_SPACE_BEFORE_WORD));
      } else if (END_OF_BLOCK.getValue().isAcceptable(position, position)
          && PsiTreeUtil.getParentOfType(position, PsiMember.class) == null) {
        result.consume(
            new OverrideableSpace(
                createKeyword(position, PsiKeyword.IMPORT), TailType.HUMBLE_SPACE_BEFORE_WORD));
      }
    }

    if ((isInsideParameterList(position)
            || isAtResourceVariableStart(position)
            || isAtCatchVariableStart(position))
        && !psiElement().afterLeaf(PsiKeyword.FINAL).accepts(position)
        && !AFTER_DOT.accepts(position)) {
      result.consume(
          TailTypeDecorator.withTail(
              createKeyword(position, PsiKeyword.FINAL), TailType.HUMBLE_SPACE_BEFORE_WORD));
    }

    if (isInstanceofPlace(position)) {
      result.consume(
          LookupElementDecorator.withInsertHandler(
              createKeyword(position, PsiKeyword.INSTANCEOF),
              new InsertHandler<LookupElementDecorator<LookupElement>>() {
                @Override
                public void handleInsert(
                    InsertionContext context, LookupElementDecorator<LookupElement> item) {
                  TailType tailType = TailType.HUMBLE_SPACE_BEFORE_WORD;
                  if (tailType.isApplicable(context)) {
                    tailType.processTail(context.getEditor(), context.getTailOffset());
                  }

                  if ('!' == context.getCompletionChar()) {
                    context.setAddCompletionChar(false);
                    context.commitDocument();
                    PsiInstanceOfExpression expr =
                        PsiTreeUtil.findElementOfClassAtOffset(
                            context.getFile(),
                            context.getStartOffset(),
                            PsiInstanceOfExpression.class,
                            false);
                    if (expr != null) {
                      String space =
                          context.getCodeStyleSettings().SPACE_WITHIN_PARENTHESES ? " " : "";
                      context
                          .getDocument()
                          .insertString(expr.getTextRange().getStartOffset(), "!(" + space);
                      context.getDocument().insertString(context.getTailOffset(), space + ")");
                    }
                  }
                }
              }));
    }

    if (isSuitableForClass(position)) {
      for (String s : ModifierChooser.getKeywords(position)) {
        result.consume(
            new OverrideableSpace(createKeyword(position, s), TailType.HUMBLE_SPACE_BEFORE_WORD));
      }
      result.consume(
          new OverrideableSpace(
              createKeyword(position, PsiKeyword.CLASS), TailType.HUMBLE_SPACE_BEFORE_WORD));
      if (PsiTreeUtil.getParentOfType(position, PsiCodeBlock.class, true, PsiMember.class)
          == null) {
        result.consume(
            new OverrideableSpace(
                createKeyword(position, PsiKeyword.INTERFACE), TailType.HUMBLE_SPACE_BEFORE_WORD));
        if (PsiUtil.getLanguageLevel(position).isAtLeast(LanguageLevel.JDK_1_5)) {
          result.consume(
              new OverrideableSpace(
                  createKeyword(position, PsiKeyword.ENUM), TailType.INSERT_SPACE));
        }
      }
    }

    addPrimitiveTypes(result, position);

    if (isAfterTypeDot(position)) {
      result.consume(createKeyword(position, PsiKeyword.CLASS));
    }

    addUnfinishedMethodTypeParameters(position, result);

    if (JavaMemberNameCompletionContributor.INSIDE_TYPE_PARAMS_PATTERN.accepts(position)) {
      result.consume(
          new OverrideableSpace(
              createKeyword(position, PsiKeyword.EXTENDS), TailType.HUMBLE_SPACE_BEFORE_WORD));
      result.consume(
          new OverrideableSpace(
              createKeyword(position, PsiKeyword.SUPER), TailType.HUMBLE_SPACE_BEFORE_WORD));
    }
  }
 public boolean handleUserSelection(LookupItem item, Project project) {
   if (!myIsStandard) {
     item.setLookupString(myValue);
   }
   return true;
 }
  public static void insertParentheses(
      final InsertionContext context,
      final LookupElement item,
      boolean overloadsMatter,
      boolean hasParams,
      final boolean forceClosingParenthesis) {
    final Editor editor = context.getEditor();
    final char completionChar = context.getCompletionChar();
    final PsiFile file = context.getFile();

    final TailType tailType =
        completionChar == '('
            ? TailType.NONE
            : completionChar == ':'
                ? TailType.COND_EXPR_COLON
                : LookupItem.handleCompletionChar(context.getEditor(), item, completionChar);
    final boolean hasTail = tailType != TailType.NONE && tailType != TailType.UNKNOWN;
    final boolean smart = completionChar == Lookup.COMPLETE_STATEMENT_SELECT_CHAR;

    if (completionChar == '('
        || completionChar == '.'
        || completionChar == ','
        || completionChar == ';'
        || completionChar == ':'
        || completionChar == ' ') {
      context.setAddCompletionChar(false);
    }

    if (hasTail) {
      hasParams = false;
    }
    final boolean needRightParenth =
        forceClosingParenthesis
            || !smart
                && (CodeInsightSettings.getInstance().AUTOINSERT_PAIR_BRACKET
                    || !hasParams && completionChar != '(');

    context.commitDocument();

    final CommonCodeStyleSettings styleSettings = context.getCodeStyleSettings();
    final PsiElement elementAt = file.findElementAt(context.getStartOffset());
    if (elementAt == null || !(elementAt.getParent() instanceof PsiMethodReferenceExpression)) {
      ParenthesesInsertHandler.getInstance(
              hasParams,
              styleSettings.SPACE_BEFORE_METHOD_CALL_PARENTHESES,
              styleSettings.SPACE_WITHIN_METHOD_CALL_PARENTHESES && hasParams,
              needRightParenth,
              styleSettings.METHOD_PARAMETERS_LPAREN_ON_NEXT_LINE)
          .handleInsert(context, item);
    }

    if (hasParams) {
      // Invoke parameters popup
      AutoPopupController.getInstance(file.getProject())
          .autoPopupParameterInfo(editor, overloadsMatter ? null : (PsiElement) item.getObject());
    }

    if (smart || !needRightParenth || !insertTail(context, item, tailType, hasTail)) {
      return;
    }

    if (completionChar == '.') {
      AutoPopupController.getInstance(file.getProject())
          .autoPopupMemberLookup(context.getEditor(), null);
    } else if (completionChar == ',') {
      AutoPopupController.getInstance(file.getProject())
          .autoPopupParameterInfo(context.getEditor(), null);
    }
  }
 public static LookupItem setShowFQN(final LookupItem ret) {
   ret.setAttribute(
       JavaPsiClassReferenceElement.PACKAGE_NAME,
       PsiFormatUtil.getPackageDisplayName((PsiClass) ret.getObject()));
   return ret;
 }
 public static LookupItem qualify(final LookupItem ret) {
   return ret.forceQualify();
 }
 public static PsiType getQualifierType(LookupItem item) {
   return item.getUserData(QUALIFIER_TYPE_ATTR);
 }