Java CompletionProposal.TYPE_REF属性代码示例

/**
 * Creates and returns a parameter list of the given method or type proposal suitable for
 * display. The list does not include parentheses. The lower bound of parameter types is
 * returned.
 * <p>
 * Examples:
 *
 * <pre>
 *   &quot;void method(int i, String s)&quot; -&gt; &quot;int i, String s&quot;
 *   &quot;? extends Number method(java.lang.String s, ? super Number n)&quot; -&gt; &quot;String s, Number n&quot;
 * </pre>
 *
 * </p>
 *
 * @param proposal the proposal to create the parameter list for
 * @return the list of comma-separated parameters suitable for display
 */
public StringBuilder createParameterList(CompletionProposal proposal) {
	int kind= proposal.getKind();
	switch (kind) {
	case CompletionProposal.METHOD_REF:
	case CompletionProposal.CONSTRUCTOR_INVOCATION:
		return appendUnboundedParameterList(new StringBuilder(), proposal);
	case CompletionProposal.TYPE_REF:
	case CompletionProposal.JAVADOC_TYPE_REF:
		return appendTypeParameterList(new StringBuilder(), proposal);
	case CompletionProposal.ANONYMOUS_CLASS_DECLARATION:
	case CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION:
		return appendUnboundedParameterList(new StringBuilder(), proposal);
	default:
		Assert.isLegal(false);
		return null; // dummy
	}
}
 

/**
 * Creates and returns a parameter list of the given method or type proposal suitable for display.
 * The list does not include parentheses. The lower bound of parameter types is returned.
 *
 * <p>Examples:
 *
 * <pre>
 *   &quot;void method(int i, String s)&quot; -&gt; &quot;int i, String s&quot;
 *   &quot;? extends Number method(java.lang.String s, ? super Number n)&quot; -&gt; &quot;String s, Number n&quot;
 * </pre>
 *
 * @param proposal the proposal to create the parameter list for
 * @return the list of comma-separated parameters suitable for display
 */
public String createParameterList(CompletionProposal proposal) {
  String paramList;
  int kind = proposal.getKind();
  switch (kind) {
    case CompletionProposal.METHOD_REF:
    case CompletionProposal.CONSTRUCTOR_INVOCATION:
      paramList = appendUnboundedParameterList(new StyledString(), proposal).getString();
      return Strings.markJavaElementLabelLTR(paramList);
    case CompletionProposal.TYPE_REF:
    case CompletionProposal.JAVADOC_TYPE_REF:
      paramList = appendTypeParameterList(new StyledString(), proposal).getString();
      return Strings.markJavaElementLabelLTR(paramList);
    case CompletionProposal.ANONYMOUS_CLASS_DECLARATION:
    case CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION:
      paramList = appendUnboundedParameterList(new StyledString(), proposal).getString();
      return Strings.markJavaElementLabelLTR(paramList);
    default:
      Assert.isLegal(false);
      return null; // dummy
  }
}
 

/**
 * Tells whether required proposals are supported by this proposal.
 *
 * @return <code>true</code> if required proposals are supported by this proposal
 * @see org.eclipse.jdt.core.CompletionProposal#getRequiredProposals()
 * @since 3.3
 */
protected boolean isSupportingRequiredProposals() {
  if (fInvocationContext == null) return false;

  ProposalInfo proposalInfo = getProposalInfo();
  if (!(proposalInfo instanceof MemberProposalInfo
      || proposalInfo instanceof AnonymousTypeProposalInfo)) return false;

  CompletionProposal proposal = ((MemberProposalInfo) proposalInfo).fProposal;
  return proposal != null
      && (proposal.getKind() == CompletionProposal.METHOD_REF
          || proposal.getKind() == CompletionProposal.FIELD_REF
          || proposal.getKind() == CompletionProposal.TYPE_REF
          || proposal.getKind() == CompletionProposal.CONSTRUCTOR_INVOCATION
          || proposal.getKind() == CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION);
}
 

private String createReplaceString() {
  switch (wrappedProposal.getKind()) {
    case CompletionProposal.PACKAGE_REF:
      return computePackageCompletion();
    case CompletionProposal.TYPE_REF:
      return computeTypeCompletion();
    case CompletionProposal.FIELD_REF:
      return computeFieldCompletion();
    case CompletionProposal.METHOD_REF:
      if (wrappedProposal.isConstructor()) {
        return computeCtorCompletion();
      } else {
        return computeMethodCompletion();
      }
    default:
      return "";
  }
}
 

protected ICompletionProposal createProposal(CompletionProposal javaProposal) {
  String completion = String.valueOf(javaProposal.getCompletion());
  int kind = javaProposal.getKind();
  if (kind == CompletionProposal.TYPE_REF) {
    // Make sure it is fully qualified
    completion = JavaContentAssistUtilities.getFullyQualifiedTypeName(javaProposal);
  }

  if (forceFullyQualifiedFieldNames
      && (kind == CompletionProposal.FIELD_IMPORT || kind == CompletionProposal.FIELD_REF)) {
    char[] decSig = javaProposal.getDeclarationSignature();
    if (decSig != null && decSig.length > 2) {
      // declaration signatures for objects are like Ljava.lang.String;, so lop off first
      // and last chars
      completion = new String(decSig, 1, decSig.length - 2) + "."
          + new String(javaProposal.getCompletion());
      completion = completion.replace('$', '.');
    }
  }

  ICompletionProposal jdtCompletionProposal = JavaContentAssistUtilities.getJavaCompletionProposal(
      javaProposal, context, javaProject);
  return ReplacementCompletionProposal.fromExistingCompletionProposal(completion,
      replaceOffset, replaceLength, jdtCompletionProposal);
}
 

private void ignoreAll() {
  int[] ignoredKinds = new int[] {
      CompletionProposal.ANONYMOUS_CLASS_DECLARATION,
      CompletionProposal.FIELD_REF, CompletionProposal.KEYWORD,
      CompletionProposal.LABEL_REF, CompletionProposal.LOCAL_VARIABLE_REF,
      CompletionProposal.METHOD_REF, CompletionProposal.METHOD_DECLARATION,
      CompletionProposal.PACKAGE_REF, CompletionProposal.TYPE_REF,
      CompletionProposal.VARIABLE_DECLARATION,
      CompletionProposal.POTENTIAL_METHOD_DECLARATION,
      CompletionProposal.METHOD_NAME_REFERENCE,
      CompletionProposal.ANNOTATION_ATTRIBUTE_REF,
      CompletionProposal.JAVADOC_FIELD_REF,
      CompletionProposal.JAVADOC_METHOD_REF,
      CompletionProposal.JAVADOC_TYPE_REF,
      CompletionProposal.JAVADOC_VALUE_REF,
      CompletionProposal.JAVADOC_PARAM_REF,
      CompletionProposal.JAVADOC_BLOCK_TAG,
      CompletionProposal.JAVADOC_INLINE_TAG, CompletionProposal.FIELD_IMPORT,
      CompletionProposal.METHOD_IMPORT, CompletionProposal.TYPE_IMPORT};

  for (int kind : ignoredKinds) {
    setIgnored(kind, true);
  }
}
 

/**
 * Computes the relevance for a given <code>CompletionProposal</code>.
 *
 * @param proposal the proposal to compute the relevance for
 * @return the relevance for <code>proposal</code>
 */
public static String computeSortText(CompletionProposal proposal) {
	final int baseRelevance= proposal.getRelevance() * 16;
	switch (proposal.getKind()) {
	case CompletionProposal.LABEL_REF:
		return convertRelevance( baseRelevance + 1);
	case CompletionProposal.KEYWORD:
		return convertRelevance(baseRelevance + 2);
	case CompletionProposal.TYPE_REF:
	case CompletionProposal.ANONYMOUS_CLASS_DECLARATION:
	case CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION:
		return convertRelevance(baseRelevance + 3);
	case CompletionProposal.METHOD_REF:
	case CompletionProposal.CONSTRUCTOR_INVOCATION:
	case CompletionProposal.METHOD_NAME_REFERENCE:
	case CompletionProposal.METHOD_DECLARATION:
	case CompletionProposal.ANNOTATION_ATTRIBUTE_REF:
	case CompletionProposal.POTENTIAL_METHOD_DECLARATION:
		return convertRelevance(baseRelevance + 4);
	case CompletionProposal.FIELD_REF:
		return convertRelevance(baseRelevance + 5);
	case CompletionProposal.LOCAL_VARIABLE_REF:
	case CompletionProposal.VARIABLE_DECLARATION:
		return convertRelevance(baseRelevance + 6);
	case CompletionProposal.PACKAGE_REF://intentional fall-through
	default:
		return convertRelevance(baseRelevance);
	}
}
 

private boolean isSupportingRequiredProposals(CompletionProposal proposal) {
	return proposal != null
			&& (proposal.getKind() == CompletionProposal.METHOD_REF
			|| proposal.getKind() == CompletionProposal.FIELD_REF
			|| proposal.getKind() == CompletionProposal.TYPE_REF
					|| proposal.getKind() == CompletionProposal.CONSTRUCTOR_INVOCATION || proposal.getKind() == CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION
					|| proposal.getKind() == CompletionProposal.ANONYMOUS_CLASS_DECLARATION);
}
 

private void appendReplacementString(StringBuilder buffer, CompletionProposal proposal) {
	if (!hasArgumentList(proposal)) {
		String str = proposal.getKind() == CompletionProposal.TYPE_REF ? computeJavaTypeReplacementString(proposal) : String.valueOf(proposal.getCompletion());
		if (client.isCompletionSnippetsSupported()) {
			str = CompletionUtils.sanitizeCompletion(str);
		}
		buffer.append(str);
		return;
	}

	// we're inserting a method plus the argument list - respect formatter preferences
	appendMethodNameReplacement(buffer, proposal);
	final boolean addParen  = client.isCompletionSnippetsSupported();
	if(addParen) {
		buffer.append(LPAREN);
	}

	if (hasParameters(proposal)) {
		appendGuessingCompletion(buffer, proposal);
	}

	if(addParen){
		buffer.append(RPAREN);
		// add semicolons only if there are parentheses
		if (canAutomaticallyAppendSemicolon(proposal)) {
			buffer.append(SEMICOLON);
		}
	}
	if(proposal.getKind() == CompletionProposal.METHOD_DECLARATION){
		appendBody(buffer);
	}
}
 

/**
 * Computes the relevance for a given <code>CompletionProposal</code>.
 *
 * <p>Subclasses may replace, but usually should not need to.
 *
 * @param proposal the proposal to compute the relevance for
 * @return the relevance for <code>proposal</code>
 */
protected int computeRelevance(CompletionProposal proposal) {
  final int baseRelevance = proposal.getRelevance() * 16;
  switch (proposal.getKind()) {
    case CompletionProposal.PACKAGE_REF:
      return baseRelevance + 0;
    case CompletionProposal.LABEL_REF:
      return baseRelevance + 1;
    case CompletionProposal.KEYWORD:
      return baseRelevance + 2;
    case CompletionProposal.TYPE_REF:
    case CompletionProposal.ANONYMOUS_CLASS_DECLARATION:
    case CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION:
      return baseRelevance + 3;
    case CompletionProposal.METHOD_REF:
    case CompletionProposal.CONSTRUCTOR_INVOCATION:
    case CompletionProposal.METHOD_NAME_REFERENCE:
    case CompletionProposal.METHOD_DECLARATION:
    case CompletionProposal.ANNOTATION_ATTRIBUTE_REF:
      return baseRelevance + 4;
    case CompletionProposal.POTENTIAL_METHOD_DECLARATION:
      return baseRelevance + 4 /* + 99 */;
    case CompletionProposal.FIELD_REF:
      return baseRelevance + 5;
    case CompletionProposal.LOCAL_VARIABLE_REF:
    case CompletionProposal.VARIABLE_DECLARATION:
      return baseRelevance + 6;
    default:
      return baseRelevance;
  }
}
 

/**
 * Returns the type signature of the declaring type of a <code>CompletionProposal</code>, or
 * <code>null</code> for proposals that do not have a declaring type. The return value is
 * <em>not</em> <code>null</code> for proposals of the following kinds:
 *
 * <ul>
 *   <li>METHOD_DECLARATION
 *   <li>METHOD_NAME_REFERENCE
 *   <li>METHOD_REF
 *   <li>ANNOTATION_ATTRIBUTE_REF
 *   <li>POTENTIAL_METHOD_DECLARATION
 *   <li>ANONYMOUS_CLASS_DECLARATION
 *   <li>FIELD_REF
 *   <li>PACKAGE_REF (returns the package, but no type)
 *   <li>TYPE_REF
 * </ul>
 *
 * @param proposal the completion proposal to get the declaring type for
 * @return the type signature of the declaring type, or <code>null</code> if there is none
 * @see org.eclipse.jdt.core.Signature#toCharArray(char[])
 */
protected final char[] getDeclaringType(CompletionProposal proposal) {
  switch (proposal.getKind()) {
    case CompletionProposal.METHOD_DECLARATION:
    case CompletionProposal.METHOD_NAME_REFERENCE:
    case CompletionProposal.JAVADOC_METHOD_REF:
    case CompletionProposal.METHOD_REF:
    case CompletionProposal.CONSTRUCTOR_INVOCATION:
    case CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION:
    case CompletionProposal.METHOD_REF_WITH_CASTED_RECEIVER:
    case CompletionProposal.ANNOTATION_ATTRIBUTE_REF:
    case CompletionProposal.POTENTIAL_METHOD_DECLARATION:
    case CompletionProposal.ANONYMOUS_CLASS_DECLARATION:
    case CompletionProposal.FIELD_REF:
    case CompletionProposal.FIELD_REF_WITH_CASTED_RECEIVER:
    case CompletionProposal.JAVADOC_FIELD_REF:
    case CompletionProposal.JAVADOC_VALUE_REF:
      char[] declaration = proposal.getDeclarationSignature();
      // special methods may not have a declaring type: methods defined on arrays etc.
      // Currently known: class literals don't have a declaring type - use Object
      if (declaration == null) return "java.lang.Object".toCharArray(); // $NON-NLS-1$
      return Signature.toCharArray(declaration);
    case CompletionProposal.PACKAGE_REF:
      return proposal.getDeclarationSignature();
    case CompletionProposal.JAVADOC_TYPE_REF:
    case CompletionProposal.TYPE_REF:
      return Signature.toCharArray(proposal.getSignature());
    case CompletionProposal.LOCAL_VARIABLE_REF:
    case CompletionProposal.VARIABLE_DECLARATION:
    case CompletionProposal.KEYWORD:
    case CompletionProposal.LABEL_REF:
    case CompletionProposal.JAVADOC_BLOCK_TAG:
    case CompletionProposal.JAVADOC_INLINE_TAG:
    case CompletionProposal.JAVADOC_PARAM_REF:
      return null;
    default:
      Assert.isTrue(false);
      return null;
  }
}
 

protected int computeRelevance() {
  final int baseRelevance = fProposal.getRelevance() * 16;
  switch (fProposal.getKind()) {
    case CompletionProposal.PACKAGE_REF:
      return baseRelevance + 0;
    case CompletionProposal.LABEL_REF:
      return baseRelevance + 1;
    case CompletionProposal.KEYWORD:
      return baseRelevance + 2;
    case CompletionProposal.TYPE_REF:
    case CompletionProposal.ANONYMOUS_CLASS_DECLARATION:
    case CompletionProposal.ANONYMOUS_CLASS_CONSTRUCTOR_INVOCATION:
      return baseRelevance + 3;
    case CompletionProposal.METHOD_REF:
    case CompletionProposal.CONSTRUCTOR_INVOCATION:
    case CompletionProposal.METHOD_NAME_REFERENCE:
    case CompletionProposal.METHOD_DECLARATION:
    case CompletionProposal.ANNOTATION_ATTRIBUTE_REF:
      return baseRelevance + 4;
    case CompletionProposal.POTENTIAL_METHOD_DECLARATION:
      return baseRelevance + 4 /* + 99 */;
    case CompletionProposal.FIELD_REF:
      return baseRelevance + 5;
    case CompletionProposal.LOCAL_VARIABLE_REF:
    case CompletionProposal.VARIABLE_DECLARATION:
      return baseRelevance + 6;
    default:
      return baseRelevance;
  }
}
 

@Override
protected IJavaCompletionProposal createJavaCompletionProposal(CompletionProposal proposal) {
  switch (proposal.getKind()) {
    case CompletionProposal.METHOD_REF:
    case CompletionProposal.CONSTRUCTOR_INVOCATION:
    case CompletionProposal.METHOD_REF_WITH_CASTED_RECEIVER:
      return createMethodReferenceProposal(proposal);
    case CompletionProposal.TYPE_REF:
      return createTypeProposal(proposal);
    default:
      return super.createJavaCompletionProposal(proposal);
  }
}
 

@Override
protected IJavaCompletionProposal createJavaCompletionProposal(
		CompletionProposal proposal) {
	if (collectMethods) {
		if (CompletionProposal.METHOD_REF == proposal.getKind()
				&& Flags.isPublic(proposal.getFlags())) {
			char[] sig = proposal.getSignature();
			char[] declSig = proposal.getDeclarationSignature();
			// collect methods suitable for action methods ignoring Object
			// methods
			if (sig != null && declSig != null
					&& ACTION_METHOD_SIGNATURE.equals(String.valueOf(sig))
					&& !OBJECT_SIGNATURE.equals(String.valueOf(declSig))) {
				return new SimpleJavaCompletionProposal(proposal,
						getInvocationContext(), getImage(getLabelProvider()
								.createImageDescriptor(proposal)));
			}
		}
	} else {
		// collect packages and classes suitable for actions
		if ((CompletionProposal.PACKAGE_REF == proposal.getKind() || CompletionProposal.TYPE_REF == proposal
				.getKind())
				&& !Flags.isAbstract(proposal.getFlags())
				&& !Flags.isInterface(proposal.getFlags())
				&& !Flags.isEnum(proposal.getFlags())) {
			return new SimpleJavaCompletionProposal(proposal,
					getInvocationContext(), getImage(getLabelProvider()
							.createImageDescriptor(proposal)));
		}
	}
	return null;
}
 

/**
 * Creates a proposal computer for autocompleting the java classes for the
 * <ui:import field="___" />
 */
public static IProposalComputer newUiImportFieldProposalComputer(
    ContentAssistRequest contentAssistRequest, IJavaProject javaProject,
    String packageName) {

  IDOMAttr attribute = XmlContentAssistUtilities.getAttribute(contentAssistRequest);
  if (attribute == null || attribute.getOwnerElement() == null) {
    return null;
  }

  // Ensure we are autocompleting an 'ui:import' element attribute
  if (!UiBinderConstants.UI_BINDER_IMPORT_ELEMENT_NAME.equals(attribute.getOwnerElement().getLocalName())) {
    return null;
  }

  // Ensure we are autocompleting the 'field' attribute
  if (!attribute.equals(UiBinderXmlModelUtilities.getFieldAttribute(attribute.getOwnerElement()))) {
    return null;
  }

  String attrValue = XmlContentAssistUtilities.getAttributeValueUsingMatchString(contentAssistRequest);

  CodeCompleteProposalComputer ccpc = new CodeCompleteProposalComputer(
      new int[] {
          CompletionProposal.TYPE_REF, CompletionProposal.PACKAGE_REF,
          CompletionProposal.FIELD_IMPORT, CompletionProposal.FIELD_REF},
      javaProject,
      attrValue,
      XmlContentAssistUtilities.getAttributeValueOffset(contentAssistRequest),
      attrValue.length(), packageName, true);

  return ccpc;
}