org.eclipse.lsp4j.jsonrpc.messages.Either#isLeft ( )源码实例Demo

protected String _toExpectation(final Either<?, ?> either) {
  StringConcatenation _builder = new StringConcatenation();
  {
    boolean _isLeft = either.isLeft();
    if (_isLeft) {
      String _expectation = this.toExpectation(either.getLeft());
      _builder.append(_expectation);
      _builder.newLineIfNotEmpty();
    } else {
      String _expectation_1 = this.toExpectation(either.getRight());
      _builder.append(_expectation_1);
      _builder.newLineIfNotEmpty();
    }
  }
  return _builder.toString();
}
 

public static void applyCodeAction(LSPBindings server, Either<Command, CodeAction> cmd) {
    try {
        Command command;

        if (cmd.isLeft()) {
            command = cmd.getLeft();
        } else {
            Utils.applyWorkspaceEdit(cmd.getRight().getEdit());
            command = cmd.getRight().getCommand();
        }
        if (command != null) {
            server.getWorkspaceService().executeCommand(new ExecuteCommandParams(command.getCommand(), command.getArguments())).get();
        }
    } catch (InterruptedException | ExecutionException ex) {
        Exceptions.printStackTrace(ex);
    }
}
 

private String extractLabel(SignatureInformation signatureInformation, Either<String, Tuple.Two<Integer, Integer>> label) {
    if (label.isLeft()) {
        return label.getLeft();
    } else if (label.isRight()) {
        return signatureInformation.getLabel().substring(label.getRight().getFirst(), label.getRight().getSecond());
    } else {
        return "";
    }
}
 

private TextEdit getTextEdit(Either<Command, CodeAction> codeAction) {
	Command c = codeAction.isLeft() ? codeAction.getLeft() : codeAction.getRight().getCommand();
	Assert.assertEquals(CodeActionHandler.COMMAND_ID_APPLY_EDIT, c.getCommand());
	Assert.assertNotNull(c.getArguments());
	Assert.assertTrue(c.getArguments().get(0) instanceof WorkspaceEdit);
	WorkspaceEdit we = (WorkspaceEdit) c.getArguments().get(0);
	Iterator<Entry<String, List<TextEdit>>> editEntries = we.getChanges().entrySet().iterator();
	Entry<String, List<TextEdit>> entry = editEntries.next();
	TextEdit edit = entry.getValue().get(0);
	return edit;
}
 

/** @return string for given element */
public String toString2(Either<String, MarkedString> ms) {
	if (ms == null) {
		return "";
	}
	if (ms.isLeft()) {
		return ms.getLeft();
	} else {
		return toString(ms.getRight());
	}
}
 

@Override
public void write(JsonWriter out, Either<L, R> value) throws IOException {
	if (value == null) {
		out.nullValue();
	} else if (value.isLeft()) {
		left.write(out, value.getLeft());
	} else {
		right.write(out, value.getRight());
	}
}
 

private WorkspaceEdit getWorkspaceEdit(Either<Command, CodeAction> codeAction) {
	Command c = codeAction.isLeft() ? codeAction.getLeft() : codeAction.getRight().getCommand();
	assertEquals(CodeActionHandler.COMMAND_ID_APPLY_EDIT, c.getCommand());
	assertNotNull(c.getArguments());
	assertTrue(c.getArguments().get(0) instanceof WorkspaceEdit);
	return (WorkspaceEdit) c.getArguments().get(0);
}
 

/** @return string for given element */
public String toString6(Either<TextDocumentEdit, ResourceOperation> documentChanges) {
	if (documentChanges == null) {
		return "";
	}
	if (documentChanges.isLeft()) {
		return toString(documentChanges.getLeft());
	} else {
		return toString(documentChanges.getRight());
	}
}
 

/** @return string for given element */
public String toString7(Either<String, MarkupContent> documentation) {
	if (documentation == null) {
		return "";
	}
	if (documentation.isLeft()) {
		return documentation.getLeft();
	} else {
		return toString(documentation.getRight());
	}
}
 

/** @return string for given element */
public String toString8(Either<String, Two<Integer, Integer>> documentation) {
	if (documentation == null) {
		return "";
	}
	if (documentation.isLeft()) {
		return documentation.getLeft();
	} else {
		Two<Integer, Integer> right = documentation.getRight();
		return "(" + right.getFirst() + "," + right.getSecond() + ")";
	}
}
 

private void writeIntId(JsonWriter out, Either<String, Number> id) throws IOException {
	if (id == null)
		writeNullValue(out);
	else if (id.isLeft())
		out.value(Integer.parseInt(id.getLeft()));
	else if (id.isRight())
		out.value(id.getRight());
}
 

private boolean checkCodeActionProvider(Either<Boolean, CodeActionOptions> provider) {
    return provider != null && ((provider.isLeft() && provider.getLeft()) || (provider.isRight()
            && provider.getRight() != null));
}
 

private Collection<? extends LookupElement> toProposals(Project project, Editor editor, Document document, int offset, Either<List<CompletionItem>, CompletionList> completion, LanguageServer languageServer) {
    List<CompletionItem> items = completion.isLeft()?completion.getLeft():completion.getRight().getItems();
    return items.stream().map(item -> createLookupItem(project, editor, offset, item, languageServer)).collect(Collectors.toList());
    //return Collections.singletonList(LookupElementBuilder.create("quarkus.application.name=").withPresentableText("quarkus.application.name="));
}
 

public Command getCommand(Either<Command, CodeAction> codeAction) {
	return codeAction.isLeft() ? codeAction.getLeft() : codeAction.getRight().getCommand();
}
 

public static Command getCommand(Either<Command, CodeAction> codeAction) {
	return codeAction.isLeft() ? codeAction.getLeft() : codeAction.getRight().getCommand();
}
 

private boolean isTagSupported(Either<Boolean, DiagnosticsTagSupport> tagSupport) {
	return tagSupport.isLeft() ? tagSupport.getLeft() : tagSupport.getRight().getValueSet() != null;
}
 

private static Children createChildren(String currentFileUri, Either<SymbolInformation, DocumentSymbol> sym) {
    if (sym.isLeft()) {
        return LEAF;
    }
    return createChildren(currentFileUri, sym.getRight());
}
 

public void setBindings(LSPBindings bindings) {
    this.bindings = bindings;
    ServerCapabilities serverCapabilities = bindings.getInitResult().getCapabilities();
    Either<Boolean, CodeActionOptions> codeActions = serverCapabilities.getCodeActionProvider();
    allowCodeActions = codeActions != null && (!codeActions.isLeft() || codeActions.getLeft());
}
 

private boolean checkProvider(Either<Boolean, StaticRegistrationOptions> provider) {
    return provider != null && ((provider.isLeft() && provider.getLeft()) || (provider.isRight()
            && provider.getRight() != null));
}
 

private boolean checkCodeActionProvider(Either<Boolean, CodeActionOptions> provider) {
    return provider != null && ((provider.isLeft() && provider.getLeft()) || (provider.isRight()
            && provider.getRight() != null));
}