pkg/analysis_server/lib/lsp_protocol/protocol_generated.dart

// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// This file has been automatically generated. Please do not edit it manually.
// To regenerate the file, use the script
// "pkg/analysis_server/tool/lsp_spec/generate_all.dart".

import 'dart:core' hide deprecated;
import 'dart:core' as core show deprecated;
import 'package:analysis_server/lsp_protocol/protocol_special.dart';

class ApplyWorkspaceEditParams implements ToJsonable {
  ApplyWorkspaceEditParams(this.label, this.edit) {
    if (edit == null) {
      throw 'edit is required but was not provided';
    }
  }
  factory ApplyWorkspaceEditParams.fromJson(Map<String, dynamic> json) {
    final label = json['label'];
    final edit =
        json['edit'] != null ? new WorkspaceEdit.fromJson(json['edit']) : null;
    return new ApplyWorkspaceEditParams(label, edit);
  }

  /// The edits to apply.
  final WorkspaceEdit edit;

  /// An optional label of the workspace edit. This label is presented in the
  /// user interface for example on an undo stack to undo the workspace edit.
  final String label;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (label != null) {
      __result['label'] = label;
    }
    __result['edit'] = edit ?? (throw 'edit is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('edit') &&
        WorkspaceEdit.canParse(obj['edit']);
  }
}

class ApplyWorkspaceEditResponse implements ToJsonable {
  ApplyWorkspaceEditResponse(this.applied) {
    if (applied == null) {
      throw 'applied is required but was not provided';
    }
  }
  factory ApplyWorkspaceEditResponse.fromJson(Map<String, dynamic> json) {
    final applied = json['applied'];
    return new ApplyWorkspaceEditResponse(applied);
  }

  /// Indicates whether the edit was applied or not.
  final bool applied;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['applied'] =
        applied ?? (throw 'applied is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('applied') &&
        obj['applied'] is bool;
  }
}

class CancelParams implements ToJsonable {
  CancelParams(this.id) {
    if (id == null) {
      throw 'id is required but was not provided';
    }
  }
  factory CancelParams.fromJson(Map<String, dynamic> json) {
    final id = json['id'] is num
        ? new Either2<num, String>.t1(json['id'])
        : (json['id'] is String
            ? new Either2<num, String>.t2(json['id'])
            : (throw '''${json['id']} was not one of (number, string)'''));
    return new CancelParams(id);
  }

  /// The request id to cancel.
  final Either2<num, String> id;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['id'] = id ?? (throw 'id is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('id') &&
        (obj['id'] is num || obj['id'] is String);
  }
}

class ClientCapabilities implements ToJsonable {
  ClientCapabilities(this.workspace, this.textDocument, this.experimental);
  factory ClientCapabilities.fromJson(Map<String, dynamic> json) {
    final workspace = json['workspace'] != null
        ? new WorkspaceClientCapabilities.fromJson(json['workspace'])
        : null;
    final textDocument = json['textDocument'] != null
        ? new TextDocumentClientCapabilities.fromJson(json['textDocument'])
        : null;
    final experimental = json['experimental'];
    return new ClientCapabilities(workspace, textDocument, experimental);
  }

  /// Experimental client capabilities.
  final dynamic experimental;

  /// Text document specific client capabilities.
  final TextDocumentClientCapabilities textDocument;

  /// Workspace specific client capabilities.
  final WorkspaceClientCapabilities workspace;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (workspace != null) {
      __result['workspace'] = workspace;
    }
    if (textDocument != null) {
      __result['textDocument'] = textDocument;
    }
    if (experimental != null) {
      __result['experimental'] = experimental;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

/// A code action represents a change that can be performed in code, e.g. to fix
/// a problem or to refactor code.
///
/// A CodeAction must set either `edit` and/or a `command`. If both are
/// supplied, the `edit` is applied first, then the `command` is executed.
class CodeAction implements ToJsonable {
  CodeAction(this.title, this.kind, this.diagnostics, this.edit, this.command) {
    if (title == null) {
      throw 'title is required but was not provided';
    }
  }
  factory CodeAction.fromJson(Map<String, dynamic> json) {
    final title = json['title'];
    final kind = json['kind'];
    final diagnostics = json['diagnostics']
        ?.map((item) => item != null ? new Diagnostic.fromJson(item) : null)
        ?.cast<Diagnostic>()
        ?.toList();
    final edit =
        json['edit'] != null ? new WorkspaceEdit.fromJson(json['edit']) : null;
    final command =
        json['command'] != null ? new Command.fromJson(json['command']) : null;
    return new CodeAction(title, kind, diagnostics, edit, command);
  }

  /// A command this code action executes. If a code action provides an edit and
  /// a command, first the edit is executed and then the command.
  final Command command;

  /// The diagnostics that this code action resolves.
  final List<Diagnostic> diagnostics;

  /// The workspace edit this code action performs.
  final WorkspaceEdit edit;

  /// The kind of the code action.
  ///
  /// Used to filter code actions.
  final String kind;

  /// A short, human-readable, title for this code action.
  final String title;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['title'] = title ?? (throw 'title is required but was not set');
    if (kind != null) {
      __result['kind'] = kind;
    }
    if (diagnostics != null) {
      __result['diagnostics'] = diagnostics;
    }
    if (edit != null) {
      __result['edit'] = edit;
    }
    if (command != null) {
      __result['command'] = command;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('title') &&
        obj['title'] is String;
  }
}

/// Contains additional diagnostic information about the context in which a code
/// action is run.
class CodeActionContext implements ToJsonable {
  CodeActionContext(this.diagnostics, this.only) {
    if (diagnostics == null) {
      throw 'diagnostics is required but was not provided';
    }
  }
  factory CodeActionContext.fromJson(Map<String, dynamic> json) {
    final diagnostics = json['diagnostics']
        ?.map((item) => item != null ? new Diagnostic.fromJson(item) : null)
        ?.cast<Diagnostic>()
        ?.toList();
    final only = json['only']?.map((item) => item)?.cast<String>()?.toList();
    return new CodeActionContext(diagnostics, only);
  }

  /// An array of diagnostics.
  final List<Diagnostic> diagnostics;

  /// Requested kind of actions to return.
  ///
  /// Actions not of this kind are filtered out by the client before being
  /// shown. So servers can omit computing them.
  final List<String> only;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['diagnostics'] =
        diagnostics ?? (throw 'diagnostics is required but was not set');
    if (only != null) {
      __result['only'] = only;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('diagnostics') &&
        (obj['diagnostics'] is List &&
            (obj['diagnostics'].length == 0 ||
                obj['diagnostics'].every((item) => Diagnostic.canParse(item))));
  }
}

/// A set of predefined code action kinds
abstract class CodeActionKind {
  /// Base kind for quickfix actions: 'quickfix'
  static const QuickFix = 'quickfix';

  /// Base kind for refactoring actions: 'refactor'
  static const Refactor = 'refactor';

  /// Base kind for refactoring extraction actions: 'refactor.extract'
  ///
  /// Example extract actions:
  ///
  /// - Extract method
  /// - Extract function
  /// - Extract variable
  /// - Extract interface from class
  /// - ...
  static const RefactorExtract = 'refactor.extract';

  /// Base kind for refactoring inline actions: 'refactor.inline'
  ///
  /// Example inline actions:
  ///
  /// - Inline function
  /// - Inline variable
  /// - Inline constant
  /// - ...
  static const RefactorInline = 'refactor.inline';

  /// Base kind for refactoring rewrite actions: 'refactor.rewrite'
  ///
  /// Example rewrite actions:
  ///
  /// - Convert JavaScript function to class
  /// - Add or remove parameter
  /// - Encapsulate field
  /// - Make method static
  /// - Move method to base class
  /// - ...
  static const RefactorRewrite = 'refactor.rewrite';

  /// Base kind for source actions: `source`
  ///
  /// Source code actions apply to the entire file.
  static const Source = 'source';

  /// Base kind for an organize imports source action: `source.organizeImports`
  static const SourceOrganizeImports = 'source.organizeImports';
}

/// Code Action options.
class CodeActionOptions implements ToJsonable {
  CodeActionOptions(this.codeActionKinds);
  factory CodeActionOptions.fromJson(Map<String, dynamic> json) {
    final codeActionKinds =
        json['codeActionKinds']?.map((item) => item)?.cast<String>()?.toList();
    return new CodeActionOptions(codeActionKinds);
  }

  /// CodeActionKinds that this server may return.
  ///
  /// The list of kinds may be generic, such as `CodeActionKind.Refactor`, or
  /// the server may list out every specific kind they provide.
  final List<String> codeActionKinds;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (codeActionKinds != null) {
      __result['codeActionKinds'] = codeActionKinds;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

/// Params for the CodeActionRequest
class CodeActionParams implements ToJsonable {
  CodeActionParams(this.textDocument, this.range, this.context) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (range == null) {
      throw 'range is required but was not provided';
    }
    if (context == null) {
      throw 'context is required but was not provided';
    }
  }
  factory CodeActionParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final context = json['context'] != null
        ? new CodeActionContext.fromJson(json['context'])
        : null;
    return new CodeActionParams(textDocument, range, context);
  }

  /// Context carrying additional information.
  final CodeActionContext context;

  /// The range for which the command was invoked.
  final Range range;

  /// The document in which the command was invoked.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['range'] = range ?? (throw 'range is required but was not set');
    __result['context'] =
        context ?? (throw 'context is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']) &&
        obj.containsKey('context') &&
        CodeActionContext.canParse(obj['context']);
  }
}

class CodeActionRegistrationOptions
    implements TextDocumentRegistrationOptions, CodeActionOptions, ToJsonable {
  CodeActionRegistrationOptions(this.documentSelector, this.codeActionKinds);
  factory CodeActionRegistrationOptions.fromJson(Map<String, dynamic> json) {
    final documentSelector = json['documentSelector']
        ?.map((item) => item != null ? new DocumentFilter.fromJson(item) : null)
        ?.cast<DocumentFilter>()
        ?.toList();
    final codeActionKinds =
        json['codeActionKinds']?.map((item) => item)?.cast<String>()?.toList();
    return new CodeActionRegistrationOptions(documentSelector, codeActionKinds);
  }

  /// CodeActionKinds that this server may return.
  ///
  /// The list of kinds may be generic, such as `CodeActionKind.Refactor`, or
  /// the server may list out every specific kind they provide.
  final List<String> codeActionKinds;

  /// A document selector to identify the scope of the registration. If set to
  /// null the document selector provided on the client side will be used.
  final List<DocumentFilter> documentSelector;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['documentSelector'] = documentSelector;
    if (codeActionKinds != null) {
      __result['codeActionKinds'] = codeActionKinds;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('documentSelector') &&
        (obj['documentSelector'] is List &&
            (obj['documentSelector'].length == 0 ||
                obj['documentSelector']
                    .every((item) => DocumentFilter.canParse(item))));
  }
}

/// A code lens represents a command that should be shown along with source
/// text, like the number of references, a way to run tests, etc.
///
/// A code lens is _unresolved_ when no command is associated to it. For
/// performance reasons the creation of a code lens and resolving should be done
/// in two stages.
class CodeLens implements ToJsonable {
  CodeLens(this.range, this.command, this.data) {
    if (range == null) {
      throw 'range is required but was not provided';
    }
  }
  factory CodeLens.fromJson(Map<String, dynamic> json) {
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final command =
        json['command'] != null ? new Command.fromJson(json['command']) : null;
    final data = json['data'];
    return new CodeLens(range, command, data);
  }

  /// The command this code lens represents.
  final Command command;

  /// A data entry field that is preserved on a code lens item between a code
  /// lens and a code lens resolve request.
  final dynamic data;

  /// The range in which this code lens is valid. Should only span a single
  /// line.
  final Range range;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['range'] = range ?? (throw 'range is required but was not set');
    if (command != null) {
      __result['command'] = command;
    }
    if (data != null) {
      __result['data'] = data;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']);
  }
}

/// Code Lens options.
class CodeLensOptions implements ToJsonable {
  CodeLensOptions(this.resolveProvider);
  factory CodeLensOptions.fromJson(Map<String, dynamic> json) {
    final resolveProvider = json['resolveProvider'];
    return new CodeLensOptions(resolveProvider);
  }

  /// Code lens has a resolve provider as well.
  final bool resolveProvider;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (resolveProvider != null) {
      __result['resolveProvider'] = resolveProvider;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class CodeLensParams implements ToJsonable {
  CodeLensParams(this.textDocument) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
  }
  factory CodeLensParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    return new CodeLensParams(textDocument);
  }

  /// The document to request code lens for.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']);
  }
}

class CodeLensRegistrationOptions
    implements TextDocumentRegistrationOptions, ToJsonable {
  CodeLensRegistrationOptions(this.resolveProvider, this.documentSelector);
  factory CodeLensRegistrationOptions.fromJson(Map<String, dynamic> json) {
    final resolveProvider = json['resolveProvider'];
    final documentSelector = json['documentSelector']
        ?.map((item) => item != null ? new DocumentFilter.fromJson(item) : null)
        ?.cast<DocumentFilter>()
        ?.toList();
    return new CodeLensRegistrationOptions(resolveProvider, documentSelector);
  }

  /// A document selector to identify the scope of the registration. If set to
  /// null the document selector provided on the client side will be used.
  final List<DocumentFilter> documentSelector;

  /// Code lens has a resolve provider as well.
  final bool resolveProvider;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (resolveProvider != null) {
      __result['resolveProvider'] = resolveProvider;
    }
    __result['documentSelector'] = documentSelector;
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('documentSelector') &&
        (obj['documentSelector'] is List &&
            (obj['documentSelector'].length == 0 ||
                obj['documentSelector']
                    .every((item) => DocumentFilter.canParse(item))));
  }
}

/// Represents a color in RGBA space.
class Color implements ToJsonable {
  Color(this.red, this.green, this.blue, this.alpha) {
    if (red == null) {
      throw 'red is required but was not provided';
    }
    if (green == null) {
      throw 'green is required but was not provided';
    }
    if (blue == null) {
      throw 'blue is required but was not provided';
    }
    if (alpha == null) {
      throw 'alpha is required but was not provided';
    }
  }
  factory Color.fromJson(Map<String, dynamic> json) {
    final red = json['red'];
    final green = json['green'];
    final blue = json['blue'];
    final alpha = json['alpha'];
    return new Color(red, green, blue, alpha);
  }

  final num alpha;
  final num blue;
  final num green;
  final num red;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['red'] = red ?? (throw 'red is required but was not set');
    __result['green'] = green ?? (throw 'green is required but was not set');
    __result['blue'] = blue ?? (throw 'blue is required but was not set');
    __result['alpha'] = alpha ?? (throw 'alpha is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('red') &&
        obj['red'] is num &&
        obj.containsKey('green') &&
        obj['green'] is num &&
        obj.containsKey('blue') &&
        obj['blue'] is num &&
        obj.containsKey('alpha') &&
        obj['alpha'] is num;
  }
}

class ColorInformation implements ToJsonable {
  ColorInformation(this.range, this.color) {
    if (range == null) {
      throw 'range is required but was not provided';
    }
    if (color == null) {
      throw 'color is required but was not provided';
    }
  }
  factory ColorInformation.fromJson(Map<String, dynamic> json) {
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final color =
        json['color'] != null ? new Color.fromJson(json['color']) : null;
    return new ColorInformation(range, color);
  }

  /// The actual color value for this color range.
  final Color color;

  /// The range in the document where this color appears.
  final Range range;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['range'] = range ?? (throw 'range is required but was not set');
    __result['color'] = color ?? (throw 'color is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']) &&
        obj.containsKey('color') &&
        Color.canParse(obj['color']);
  }
}

class ColorPresentation implements ToJsonable {
  ColorPresentation(this.label, this.textEdit, this.additionalTextEdits) {
    if (label == null) {
      throw 'label is required but was not provided';
    }
  }
  factory ColorPresentation.fromJson(Map<String, dynamic> json) {
    final label = json['label'];
    final textEdit = json['textEdit'] != null
        ? new TextEdit.fromJson(json['textEdit'])
        : null;
    final additionalTextEdits = json['additionalTextEdits']
        ?.map((item) => item != null ? new TextEdit.fromJson(item) : null)
        ?.cast<TextEdit>()
        ?.toList();
    return new ColorPresentation(label, textEdit, additionalTextEdits);
  }

  /// An optional array of additional text edits ([TextEdit]) that are applied
  /// when selecting this color presentation. Edits must not overlap with the
  /// main [edit](#ColorPresentation.textEdit) nor with themselves.
  final List<TextEdit> additionalTextEdits;

  /// The label of this color presentation. It will be shown on the color picker
  /// header. By default this is also the text that is inserted when selecting
  /// this color presentation.
  final String label;

  /// An edit ([TextEdit]) which is applied to a document when selecting this
  /// presentation for the color.  When `falsy` the
  /// [label](#ColorPresentation.label) is used.
  final TextEdit textEdit;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['label'] = label ?? (throw 'label is required but was not set');
    if (textEdit != null) {
      __result['textEdit'] = textEdit;
    }
    if (additionalTextEdits != null) {
      __result['additionalTextEdits'] = additionalTextEdits;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('label') &&
        obj['label'] is String;
  }
}

class ColorPresentationParams implements ToJsonable {
  ColorPresentationParams(this.textDocument, this.color, this.range) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (color == null) {
      throw 'color is required but was not provided';
    }
    if (range == null) {
      throw 'range is required but was not provided';
    }
  }
  factory ColorPresentationParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final color =
        json['color'] != null ? new Color.fromJson(json['color']) : null;
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    return new ColorPresentationParams(textDocument, color, range);
  }

  /// The color information to request presentations for.
  final Color color;

  /// The range where the color would be inserted. Serves as a context.
  final Range range;

  /// The text document.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['color'] = color ?? (throw 'color is required but was not set');
    __result['range'] = range ?? (throw 'range is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('color') &&
        Color.canParse(obj['color']) &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']);
  }
}

/// Color provider options.
class ColorProviderOptions implements ToJsonable {
  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class Command implements ToJsonable {
  Command(this.title, this.command, this.arguments) {
    if (title == null) {
      throw 'title is required but was not provided';
    }
    if (command == null) {
      throw 'command is required but was not provided';
    }
  }
  factory Command.fromJson(Map<String, dynamic> json) {
    final title = json['title'];
    final command = json['command'];
    final arguments =
        json['arguments']?.map((item) => item)?.cast<dynamic>()?.toList();
    return new Command(title, command, arguments);
  }

  /// Arguments that the command handler should be invoked with.
  final List<dynamic> arguments;

  /// The identifier of the actual command handler.
  final String command;

  /// Title of the command, like `save`.
  final String title;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['title'] = title ?? (throw 'title is required but was not set');
    __result['command'] =
        command ?? (throw 'command is required but was not set');
    if (arguments != null) {
      __result['arguments'] = arguments;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('title') &&
        obj['title'] is String &&
        obj.containsKey('command') &&
        obj['command'] is String;
  }
}

/// Contains additional information about the context in which a completion
/// request is triggered.
class CompletionContext implements ToJsonable {
  CompletionContext(this.triggerKind, this.triggerCharacter) {
    if (triggerKind == null) {
      throw 'triggerKind is required but was not provided';
    }
  }
  factory CompletionContext.fromJson(Map<String, dynamic> json) {
    final triggerKind = json['triggerKind'] != null
        ? new CompletionTriggerKind.fromJson(json['triggerKind'])
        : null;
    final triggerCharacter = json['triggerCharacter'];
    return new CompletionContext(triggerKind, triggerCharacter);
  }

  /// The trigger character (a single character) that has trigger code complete.
  /// Is undefined if `triggerKind !== CompletionTriggerKind.TriggerCharacter`
  final String triggerCharacter;

  /// How the completion was triggered.
  final CompletionTriggerKind triggerKind;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['triggerKind'] =
        triggerKind ?? (throw 'triggerKind is required but was not set');
    if (triggerCharacter != null) {
      __result['triggerCharacter'] = triggerCharacter;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('triggerKind') &&
        CompletionTriggerKind.canParse(obj['triggerKind']);
  }
}

class CompletionItem implements ToJsonable {
  CompletionItem(
      this.label,
      this.kind,
      this.detail,
      this.documentation,
      this.deprecated,
      this.preselect,
      this.sortText,
      this.filterText,
      this.insertText,
      this.insertTextFormat,
      this.textEdit,
      this.additionalTextEdits,
      this.commitCharacters,
      this.command,
      this.data) {
    if (label == null) {
      throw 'label is required but was not provided';
    }
  }
  factory CompletionItem.fromJson(Map<String, dynamic> json) {
    final label = json['label'];
    final kind = json['kind'] != null
        ? new CompletionItemKind.fromJson(json['kind'])
        : null;
    final detail = json['detail'];
    final documentation = json['documentation'] is String
        ? new Either2<String, MarkupContent>.t1(json['documentation'])
        : (MarkupContent.canParse(json['documentation'])
            ? new Either2<String, MarkupContent>.t2(
                json['documentation'] != null
                    ? new MarkupContent.fromJson(json['documentation'])
                    : null)
            : (throw '''${json['documentation']} was not one of (string, MarkupContent)'''));
    final deprecated = json['deprecated'];
    final preselect = json['preselect'];
    final sortText = json['sortText'];
    final filterText = json['filterText'];
    final insertText = json['insertText'];
    final insertTextFormat = json['insertTextFormat'] != null
        ? new InsertTextFormat.fromJson(json['insertTextFormat'])
        : null;
    final textEdit = json['textEdit'] != null
        ? new TextEdit.fromJson(json['textEdit'])
        : null;
    final additionalTextEdits = json['additionalTextEdits']
        ?.map((item) => item != null ? new TextEdit.fromJson(item) : null)
        ?.cast<TextEdit>()
        ?.toList();
    final commitCharacters =
        json['commitCharacters']?.map((item) => item)?.cast<String>()?.toList();
    final command =
        json['command'] != null ? new Command.fromJson(json['command']) : null;
    final data = json['data'];
    return new CompletionItem(
        label,
        kind,
        detail,
        documentation,
        deprecated,
        preselect,
        sortText,
        filterText,
        insertText,
        insertTextFormat,
        textEdit,
        additionalTextEdits,
        commitCharacters,
        command,
        data);
  }

  /// An optional array of additional text edits that are applied when selecting
  /// this completion. Edits must not overlap (including the same insert
  /// position) with the main edit nor with themselves.
  ///
  /// Additional text edits should be used to change text unrelated to the
  /// current cursor position (for example adding an import statement at the top
  /// of the file if the completion item will insert an unqualified type).
  final List<TextEdit> additionalTextEdits;

  /// An optional command that is executed *after* inserting this completion.
  /// *Note* that additional modifications to the current document should be
  /// described with the additionalTextEdits-property.
  final Command command;

  /// An optional set of characters that when pressed while this completion is
  /// active will accept it first and then type that character. *Note* that all
  /// commit characters should have `length=1` and that superfluous characters
  /// will be ignored.
  final List<String> commitCharacters;

  /// An data entry field that is preserved on a completion item between a
  /// completion and a completion resolve request.
  final dynamic data;

  /// Indicates if this item is deprecated.
  final bool deprecated;

  /// A human-readable string with additional information about this item, like
  /// type or symbol information.
  final String detail;

  /// A human-readable string that represents a doc-comment.
  final Either2<String, MarkupContent> documentation;

  /// A string that should be used when filtering a set of completion items.
  /// When `falsy` the label is used.
  final String filterText;

  /// A string that should be inserted into a document when selecting this
  /// completion. When `falsy` the label is used.
  ///
  /// The `insertText` is subject to interpretation by the client side. Some
  /// tools might not take the string literally. For example VS Code when code
  /// complete is requested in this example `con<cursor position>` and a
  /// completion item with an `insertText` of `console` is provided it will only
  /// insert `sole`. Therefore it is recommended to use `textEdit` instead since
  /// it avoids additional client side interpretation.
  ///  @deprecated Use textEdit instead.
  @core.deprecated
  final String insertText;

  /// The format of the insert text. The format applies to both the `insertText`
  /// property and the `newText` property of a provided `textEdit`.
  final InsertTextFormat insertTextFormat;

  /// The kind of this completion item. Based of the kind an icon is chosen by
  /// the editor.
  final CompletionItemKind kind;

  /// The label of this completion item. By default also the text that is
  /// inserted when selecting this completion.
  final String label;

  /// Select this item when showing.
  ///
  /// *Note* that only one completion item can be selected and that the tool /
  /// client decides which item that is. The rule is that the *first* item of
  /// those that match best is selected.
  final bool preselect;

  /// A string that should be used when comparing this item with other items.
  /// When `falsy` the label is used.
  final String sortText;

  /// An edit which is applied to a document when selecting this completion.
  /// When an edit is provided the value of `insertText` is ignored.
  ///
  /// *Note:* The range of the edit must be a single line range and it must
  /// contain the position at which completion has been requested.
  final TextEdit textEdit;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['label'] = label ?? (throw 'label is required but was not set');
    if (kind != null) {
      __result['kind'] = kind;
    }
    if (detail != null) {
      __result['detail'] = detail;
    }
    if (documentation != null) {
      __result['documentation'] = documentation;
    }
    if (deprecated != null) {
      __result['deprecated'] = deprecated;
    }
    if (preselect != null) {
      __result['preselect'] = preselect;
    }
    if (sortText != null) {
      __result['sortText'] = sortText;
    }
    if (filterText != null) {
      __result['filterText'] = filterText;
    }
    // ignore: deprecated_member_use
    if (insertText != null) {
      // ignore: deprecated_member_use
      __result['insertText'] = insertText;
    }
    if (insertTextFormat != null) {
      __result['insertTextFormat'] = insertTextFormat;
    }
    if (textEdit != null) {
      __result['textEdit'] = textEdit;
    }
    if (additionalTextEdits != null) {
      __result['additionalTextEdits'] = additionalTextEdits;
    }
    if (commitCharacters != null) {
      __result['commitCharacters'] = commitCharacters;
    }
    if (command != null) {
      __result['command'] = command;
    }
    if (data != null) {
      __result['data'] = data;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('label') &&
        obj['label'] is String;
  }
}

/// The kind of a completion entry.
class CompletionItemKind {
  const CompletionItemKind._(this._value);
  const CompletionItemKind.fromJson(this._value);

  final Object _value;

  static bool canParse(Object obj) {
    switch (obj) {
      case 1:
      case 2:
      case 3:
      case 4:
      case 5:
      case 6:
      case 7:
      case 8:
      case 9:
      case 10:
      case 11:
      case 12:
      case 13:
      case 14:
      case 15:
      case 16:
      case 17:
      case 18:
      case 19:
      case 20:
      case 21:
      case 22:
      case 23:
      case 24:
      case 25:
        return true;
    }
    return false;
  }

  static const Text = const CompletionItemKind._(1);
  static const Method = const CompletionItemKind._(2);
  static const Function = const CompletionItemKind._(3);
  static const Constructor = const CompletionItemKind._(4);
  static const Field = const CompletionItemKind._(5);
  static const Variable = const CompletionItemKind._(6);
  static const Class = const CompletionItemKind._(7);
  static const Interface = const CompletionItemKind._(8);
  static const Module = const CompletionItemKind._(9);
  static const Property = const CompletionItemKind._(10);
  static const Unit = const CompletionItemKind._(11);
  static const Value = const CompletionItemKind._(12);
  static const Enum = const CompletionItemKind._(13);
  static const Keyword = const CompletionItemKind._(14);
  static const Snippet = const CompletionItemKind._(15);
  static const Color = const CompletionItemKind._(16);
  static const File = const CompletionItemKind._(17);
  static const Reference = const CompletionItemKind._(18);
  static const Folder = const CompletionItemKind._(19);
  static const EnumMember = const CompletionItemKind._(20);
  static const Constant = const CompletionItemKind._(21);
  static const Struct = const CompletionItemKind._(22);
  static const Event = const CompletionItemKind._(23);
  static const Operator = const CompletionItemKind._(24);
  static const TypeParameter = const CompletionItemKind._(25);

  Object toJson() => _value;

  @override
  String toString() => _value.toString();

  @override
  get hashCode => _value.hashCode;

  bool operator ==(o) => o is CompletionItemKind && o._value == _value;
}

/// Represents a collection of completion items ([CompletionItem]) to be
/// presented in the editor.
class CompletionList implements ToJsonable {
  CompletionList(this.isIncomplete, this.items) {
    if (isIncomplete == null) {
      throw 'isIncomplete is required but was not provided';
    }
    if (items == null) {
      throw 'items is required but was not provided';
    }
  }
  factory CompletionList.fromJson(Map<String, dynamic> json) {
    final isIncomplete = json['isIncomplete'];
    final items = json['items']
        ?.map((item) => item != null ? new CompletionItem.fromJson(item) : null)
        ?.cast<CompletionItem>()
        ?.toList();
    return new CompletionList(isIncomplete, items);
  }

  /// This list it not complete. Further typing should result in recomputing
  /// this list.
  final bool isIncomplete;

  /// The completion items.
  final List<CompletionItem> items;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['isIncomplete'] =
        isIncomplete ?? (throw 'isIncomplete is required but was not set');
    __result['items'] = items ?? (throw 'items is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('isIncomplete') &&
        obj['isIncomplete'] is bool &&
        obj.containsKey('items') &&
        (obj['items'] is List &&
            (obj['items'].length == 0 ||
                obj['items'].every((item) => CompletionItem.canParse(item))));
  }
}

/// Completion options.
class CompletionOptions implements ToJsonable {
  CompletionOptions(this.resolveProvider, this.triggerCharacters);
  factory CompletionOptions.fromJson(Map<String, dynamic> json) {
    final resolveProvider = json['resolveProvider'];
    final triggerCharacters = json['triggerCharacters']
        ?.map((item) => item)
        ?.cast<String>()
        ?.toList();
    return new CompletionOptions(resolveProvider, triggerCharacters);
  }

  /// The server provides support to resolve additional information for a
  /// completion item.
  final bool resolveProvider;

  /// The characters that trigger completion automatically.
  final List<String> triggerCharacters;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (resolveProvider != null) {
      __result['resolveProvider'] = resolveProvider;
    }
    if (triggerCharacters != null) {
      __result['triggerCharacters'] = triggerCharacters;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class CompletionParams implements TextDocumentPositionParams, ToJsonable {
  CompletionParams(this.context, this.textDocument, this.position) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (position == null) {
      throw 'position is required but was not provided';
    }
  }
  factory CompletionParams.fromJson(Map<String, dynamic> json) {
    final context = json['context'] != null
        ? new CompletionContext.fromJson(json['context'])
        : null;
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final position = json['position'] != null
        ? new Position.fromJson(json['position'])
        : null;
    return new CompletionParams(context, textDocument, position);
  }

  /// The completion context. This is only available if the client specifies
  /// to send this using
  /// `ClientCapabilities.textDocument.completion.contextSupport === true`
  final CompletionContext context;

  /// The position inside the text document.
  final Position position;

  /// The text document.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (context != null) {
      __result['context'] = context;
    }
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['position'] =
        position ?? (throw 'position is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('position') &&
        Position.canParse(obj['position']);
  }
}

class CompletionRegistrationOptions
    implements TextDocumentRegistrationOptions, ToJsonable {
  CompletionRegistrationOptions(
      this.triggerCharacters, this.resolveProvider, this.documentSelector);
  factory CompletionRegistrationOptions.fromJson(Map<String, dynamic> json) {
    final triggerCharacters = json['triggerCharacters']
        ?.map((item) => item)
        ?.cast<String>()
        ?.toList();
    final resolveProvider = json['resolveProvider'];
    final documentSelector = json['documentSelector']
        ?.map((item) => item != null ? new DocumentFilter.fromJson(item) : null)
        ?.cast<DocumentFilter>()
        ?.toList();
    return new CompletionRegistrationOptions(
        triggerCharacters, resolveProvider, documentSelector);
  }

  /// A document selector to identify the scope of the registration. If set to
  /// null the document selector provided on the client side will be used.
  final List<DocumentFilter> documentSelector;

  /// The server provides support to resolve additional information for a
  /// completion item.
  final bool resolveProvider;

  /// Most tools trigger completion request automatically without explicitly
  /// requesting it using a keyboard shortcut (e.g. Ctrl+Space). Typically
  /// they do so when the user starts to type an identifier. For example if
  /// the user types `c` in a JavaScript file code complete will automatically
  /// pop up present `console` besides others as a completion item. Characters
  /// that make up identifiers don't need to be listed here.
  ///
  /// If code complete should automatically be trigger on characters not being
  /// valid inside an identifier (for example `.` in JavaScript) list them in
  /// `triggerCharacters`.
  final List<String> triggerCharacters;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (triggerCharacters != null) {
      __result['triggerCharacters'] = triggerCharacters;
    }
    if (resolveProvider != null) {
      __result['resolveProvider'] = resolveProvider;
    }
    __result['documentSelector'] = documentSelector;
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('documentSelector') &&
        (obj['documentSelector'] is List &&
            (obj['documentSelector'].length == 0 ||
                obj['documentSelector']
                    .every((item) => DocumentFilter.canParse(item))));
  }
}

/// How a completion was triggered
class CompletionTriggerKind {
  const CompletionTriggerKind._(this._value);
  const CompletionTriggerKind.fromJson(this._value);

  final Object _value;

  static bool canParse(Object obj) {
    switch (obj) {
      case 1:
      case 2:
      case 3:
        return true;
    }
    return false;
  }

  /// Completion was triggered by typing an identifier (24x7 code complete),
  /// manual invocation (e.g Ctrl+Space) or via API.
  static const Invoked = const CompletionTriggerKind._(1);

  /// Completion was triggered by a trigger character specified by the
  /// `triggerCharacters` properties of the `CompletionRegistrationOptions`.
  static const TriggerCharacter = const CompletionTriggerKind._(2);

  /// Completion was re-triggered as the current completion list is
  /// incomplete.
  static const TriggerForIncompleteCompletions =
      const CompletionTriggerKind._(3);

  Object toJson() => _value;

  @override
  String toString() => _value.toString();

  @override
  get hashCode => _value.hashCode;

  bool operator ==(o) => o is CompletionTriggerKind && o._value == _value;
}

class ConfigurationItem implements ToJsonable {
  ConfigurationItem(this.scopeUri, this.section);
  factory ConfigurationItem.fromJson(Map<String, dynamic> json) {
    final scopeUri = json['scopeUri'];
    final section = json['section'];
    return new ConfigurationItem(scopeUri, section);
  }

  /// The scope to get the configuration section for.
  final String scopeUri;

  /// The configuration section asked for.
  final String section;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (scopeUri != null) {
      __result['scopeUri'] = scopeUri;
    }
    if (section != null) {
      __result['section'] = section;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class ConfigurationParams implements ToJsonable {
  ConfigurationParams(this.items) {
    if (items == null) {
      throw 'items is required but was not provided';
    }
  }
  factory ConfigurationParams.fromJson(Map<String, dynamic> json) {
    final items = json['items']
        ?.map((item) =>
            item != null ? new ConfigurationItem.fromJson(item) : null)
        ?.cast<ConfigurationItem>()
        ?.toList();
    return new ConfigurationParams(items);
  }

  final List<ConfigurationItem> items;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['items'] = items ?? (throw 'items is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('items') &&
        (obj['items'] is List &&
            (obj['items'].length == 0 ||
                obj['items']
                    .every((item) => ConfigurationItem.canParse(item))));
  }
}

/// Create file operation
class CreateFile implements FileOperation, ToJsonable {
  CreateFile(this.uri, this.options) {
    if (uri == null) {
      throw 'uri is required but was not provided';
    }
  }
  factory CreateFile.fromJson(Map<String, dynamic> json) {
    final uri = json['uri'];
    final options = json['options'] != null
        ? new CreateFileOptions.fromJson(json['options'])
        : null;
    return new CreateFile(uri, options);
  }

  /// Additional options
  final CreateFileOptions options;

  /// The resource to create.
  final String uri;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['uri'] = uri ?? (throw 'uri is required but was not set');
    if (options != null) {
      __result['options'] = options;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('uri') &&
        obj['uri'] is String;
  }
}

/// Options to create a file.
class CreateFileOptions implements ToJsonable {
  CreateFileOptions(this.overwrite, this.ignoreIfExists);
  factory CreateFileOptions.fromJson(Map<String, dynamic> json) {
    final overwrite = json['overwrite'];
    final ignoreIfExists = json['ignoreIfExists'];
    return new CreateFileOptions(overwrite, ignoreIfExists);
  }

  /// Ignore if exists.
  final bool ignoreIfExists;

  /// Overwrite existing file. Overwrite wins over `ignoreIfExists`
  final bool overwrite;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (overwrite != null) {
      __result['overwrite'] = overwrite;
    }
    if (ignoreIfExists != null) {
      __result['ignoreIfExists'] = ignoreIfExists;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

/// Delete file operation
class DeleteFile implements FileOperation, ToJsonable {
  DeleteFile(this.uri, this.options) {
    if (uri == null) {
      throw 'uri is required but was not provided';
    }
  }
  factory DeleteFile.fromJson(Map<String, dynamic> json) {
    final uri = json['uri'];
    final options = json['options'] != null
        ? new DeleteFileOptions.fromJson(json['options'])
        : null;
    return new DeleteFile(uri, options);
  }

  /// Delete options.
  final DeleteFileOptions options;

  /// The file to delete.
  final String uri;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['uri'] = uri ?? (throw 'uri is required but was not set');
    if (options != null) {
      __result['options'] = options;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('uri') &&
        obj['uri'] is String;
  }
}

/// Delete file options
class DeleteFileOptions implements ToJsonable {
  DeleteFileOptions(this.recursive, this.ignoreIfNotExists);
  factory DeleteFileOptions.fromJson(Map<String, dynamic> json) {
    final recursive = json['recursive'];
    final ignoreIfNotExists = json['ignoreIfNotExists'];
    return new DeleteFileOptions(recursive, ignoreIfNotExists);
  }

  /// Ignore the operation if the file doesn't exist.
  final bool ignoreIfNotExists;

  /// Delete the content recursively if a folder is denoted.
  final bool recursive;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (recursive != null) {
      __result['recursive'] = recursive;
    }
    if (ignoreIfNotExists != null) {
      __result['ignoreIfNotExists'] = ignoreIfNotExists;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class Diagnostic implements ToJsonable {
  Diagnostic(this.range, this.severity, this.code, this.source, this.message,
      this.relatedInformation) {
    if (range == null) {
      throw 'range is required but was not provided';
    }
    if (message == null) {
      throw 'message is required but was not provided';
    }
  }
  factory Diagnostic.fromJson(Map<String, dynamic> json) {
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final severity = json['severity'] != null
        ? new DiagnosticSeverity.fromJson(json['severity'])
        : null;
    final code = json['code'] is num
        ? new Either2<num, String>.t1(json['code'])
        : (json['code'] is String
            ? new Either2<num, String>.t2(json['code'])
            : (throw '''${json['code']} was not one of (number, string)'''));
    final source = json['source'];
    final message = json['message'];
    final relatedInformation = json['relatedInformation']
        ?.map((item) => item != null
            ? new DiagnosticRelatedInformation.fromJson(item)
            : null)
        ?.cast<DiagnosticRelatedInformation>()
        ?.toList();
    return new Diagnostic(
        range, severity, code, source, message, relatedInformation);
  }

  /// The diagnostic's code, which might appear in the user interface.
  final Either2<num, String> code;

  /// The diagnostic's message.
  final String message;

  /// The range at which the message applies.
  final Range range;

  /// An array of related diagnostic information, e.g. when symbol-names
  /// within a scope collide all definitions can be marked via this
  /// property.
  final List<DiagnosticRelatedInformation> relatedInformation;

  /// The diagnostic's severity. Can be omitted. If omitted it is up to the
  /// client to interpret diagnostics as error, warning, info or hint.
  final DiagnosticSeverity severity;

  /// A human-readable string describing the source of this diagnostic, e.g.
  /// 'typescript' or 'super lint'.
  final String source;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['range'] = range ?? (throw 'range is required but was not set');
    if (severity != null) {
      __result['severity'] = severity;
    }
    if (code != null) {
      __result['code'] = code;
    }
    if (source != null) {
      __result['source'] = source;
    }
    __result['message'] =
        message ?? (throw 'message is required but was not set');
    if (relatedInformation != null) {
      __result['relatedInformation'] = relatedInformation;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']) &&
        obj.containsKey('message') &&
        obj['message'] is String;
  }
}

/// Represents a related message and source code location for a diagnostic.
/// This should be used to point to code locations that cause or related to
/// a diagnostics, e.g when duplicating a symbol in a scope.
class DiagnosticRelatedInformation implements ToJsonable {
  DiagnosticRelatedInformation(this.location, this.message) {
    if (location == null) {
      throw 'location is required but was not provided';
    }
    if (message == null) {
      throw 'message is required but was not provided';
    }
  }
  factory DiagnosticRelatedInformation.fromJson(Map<String, dynamic> json) {
    final location = json['location'] != null
        ? new Location.fromJson(json['location'])
        : null;
    final message = json['message'];
    return new DiagnosticRelatedInformation(location, message);
  }

  /// The location of this related diagnostic information.
  final Location location;

  /// The message of this related diagnostic information.
  final String message;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['location'] =
        location ?? (throw 'location is required but was not set');
    __result['message'] =
        message ?? (throw 'message is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('location') &&
        Location.canParse(obj['location']) &&
        obj.containsKey('message') &&
        obj['message'] is String;
  }
}

class DiagnosticSeverity {
  const DiagnosticSeverity._(this._value);
  const DiagnosticSeverity.fromJson(this._value);

  final Object _value;

  static bool canParse(Object obj) {
    switch (obj) {
      case 1:
      case 2:
      case 3:
      case 4:
        return true;
    }
    return false;
  }

  /// Reports an error.
  static const Error = const DiagnosticSeverity._(1);

  /// Reports a warning.
  static const Warning = const DiagnosticSeverity._(2);

  /// Reports an information.
  static const Information = const DiagnosticSeverity._(3);

  /// Reports a hint.
  static const Hint = const DiagnosticSeverity._(4);

  Object toJson() => _value;

  @override
  String toString() => _value.toString();

  @override
  get hashCode => _value.hashCode;

  bool operator ==(o) => o is DiagnosticSeverity && o._value == _value;
}

class DidChangeConfigurationParams implements ToJsonable {
  DidChangeConfigurationParams(this.settings) {
    if (settings == null) {
      throw 'settings is required but was not provided';
    }
  }
  factory DidChangeConfigurationParams.fromJson(Map<String, dynamic> json) {
    final settings = json['settings'];
    return new DidChangeConfigurationParams(settings);
  }

  /// The actual changed settings
  final dynamic settings;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['settings'] =
        settings ?? (throw 'settings is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> && obj.containsKey('settings') && true;
  }
}

class DidChangeTextDocumentParams implements ToJsonable {
  DidChangeTextDocumentParams(this.textDocument, this.contentChanges) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (contentChanges == null) {
      throw 'contentChanges is required but was not provided';
    }
  }
  factory DidChangeTextDocumentParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new VersionedTextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final contentChanges = json['contentChanges']
        ?.map((item) => item != null
            ? new TextDocumentContentChangeEvent.fromJson(item)
            : null)
        ?.cast<TextDocumentContentChangeEvent>()
        ?.toList();
    return new DidChangeTextDocumentParams(textDocument, contentChanges);
  }

  /// The actual content changes. The content changes describe single
  /// state changes to the document. So if there are two content changes
  /// c1 and c2 for a document in state S then c1 move the document to S'
  /// and c2 to S''.
  final List<TextDocumentContentChangeEvent> contentChanges;

  /// The document that did change. The version number points to the
  /// version after all provided content changes have been applied.
  final VersionedTextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['contentChanges'] =
        contentChanges ?? (throw 'contentChanges is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        VersionedTextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('contentChanges') &&
        (obj['contentChanges'] is List &&
            (obj['contentChanges'].length == 0 ||
                obj['contentChanges'].every(
                    (item) => TextDocumentContentChangeEvent.canParse(item))));
  }
}

class DidChangeWatchedFilesParams implements ToJsonable {
  DidChangeWatchedFilesParams(this.changes) {
    if (changes == null) {
      throw 'changes is required but was not provided';
    }
  }
  factory DidChangeWatchedFilesParams.fromJson(Map<String, dynamic> json) {
    final changes = json['changes']
        ?.map((item) => item != null ? new FileEvent.fromJson(item) : null)
        ?.cast<FileEvent>()
        ?.toList();
    return new DidChangeWatchedFilesParams(changes);
  }

  /// The actual file events.
  final List<FileEvent> changes;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['changes'] =
        changes ?? (throw 'changes is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('changes') &&
        (obj['changes'] is List &&
            (obj['changes'].length == 0 ||
                obj['changes'].every((item) => FileEvent.canParse(item))));
  }
}

/// Describe options to be used when registering for text document change
/// events.
class DidChangeWatchedFilesRegistrationOptions implements ToJsonable {
  DidChangeWatchedFilesRegistrationOptions(this.watchers) {
    if (watchers == null) {
      throw 'watchers is required but was not provided';
    }
  }
  factory DidChangeWatchedFilesRegistrationOptions.fromJson(
      Map<String, dynamic> json) {
    final watchers = json['watchers']
        ?.map((item) =>
            item != null ? new FileSystemWatcher.fromJson(item) : null)
        ?.cast<FileSystemWatcher>()
        ?.toList();
    return new DidChangeWatchedFilesRegistrationOptions(watchers);
  }

  /// The watchers to register.
  final List<FileSystemWatcher> watchers;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['watchers'] =
        watchers ?? (throw 'watchers is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('watchers') &&
        (obj['watchers'] is List &&
            (obj['watchers'].length == 0 ||
                obj['watchers']
                    .every((item) => FileSystemWatcher.canParse(item))));
  }
}

class DidChangeWorkspaceFoldersParams implements ToJsonable {
  DidChangeWorkspaceFoldersParams(this.event) {
    if (event == null) {
      throw 'event is required but was not provided';
    }
  }
  factory DidChangeWorkspaceFoldersParams.fromJson(Map<String, dynamic> json) {
    final event = json['event'] != null
        ? new WorkspaceFoldersChangeEvent.fromJson(json['event'])
        : null;
    return new DidChangeWorkspaceFoldersParams(event);
  }

  /// The actual workspace folder change event.
  final WorkspaceFoldersChangeEvent event;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['event'] = event ?? (throw 'event is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('event') &&
        WorkspaceFoldersChangeEvent.canParse(obj['event']);
  }
}

class DidCloseTextDocumentParams implements ToJsonable {
  DidCloseTextDocumentParams(this.textDocument) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
  }
  factory DidCloseTextDocumentParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    return new DidCloseTextDocumentParams(textDocument);
  }

  /// The document that was closed.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']);
  }
}

class DidOpenTextDocumentParams implements ToJsonable {
  DidOpenTextDocumentParams(this.textDocument) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
  }
  factory DidOpenTextDocumentParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentItem.fromJson(json['textDocument'])
        : null;
    return new DidOpenTextDocumentParams(textDocument);
  }

  /// The document that was opened.
  final TextDocumentItem textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentItem.canParse(obj['textDocument']);
  }
}

class DidSaveTextDocumentParams implements ToJsonable {
  DidSaveTextDocumentParams(this.textDocument, this.text) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
  }
  factory DidSaveTextDocumentParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final text = json['text'];
    return new DidSaveTextDocumentParams(textDocument, text);
  }

  /// Optional the content when saved. Depends on the includeText value
  /// when the save notification was requested.
  final String text;

  /// The document that was saved.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    if (text != null) {
      __result['text'] = text;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']);
  }
}

class DocumentFilter implements ToJsonable {
  DocumentFilter(this.language, this.scheme, this.pattern);
  factory DocumentFilter.fromJson(Map<String, dynamic> json) {
    final language = json['language'];
    final scheme = json['scheme'];
    final pattern = json['pattern'];
    return new DocumentFilter(language, scheme, pattern);
  }

  /// A language id, like `typescript`.
  final String language;

  /// A glob pattern, like `*.{ts,js}`.
  final String pattern;

  /// A Uri [scheme](#Uri.scheme), like `file` or `untitled`.
  final String scheme;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (language != null) {
      __result['language'] = language;
    }
    if (scheme != null) {
      __result['scheme'] = scheme;
    }
    if (pattern != null) {
      __result['pattern'] = pattern;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class DocumentFormattingParams implements ToJsonable {
  DocumentFormattingParams(this.textDocument, this.options) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (options == null) {
      throw 'options is required but was not provided';
    }
  }
  factory DocumentFormattingParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final options = json['options'] != null
        ? new FormattingOptions.fromJson(json['options'])
        : null;
    return new DocumentFormattingParams(textDocument, options);
  }

  /// The format options.
  final FormattingOptions options;

  /// The document to format.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['options'] =
        options ?? (throw 'options is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('options') &&
        FormattingOptions.canParse(obj['options']);
  }
}

/// A document highlight is a range inside a text document which deserves
/// special attention. Usually a document highlight is visualized by
/// changing the background color of its range.
class DocumentHighlight implements ToJsonable {
  DocumentHighlight(this.range, this.kind) {
    if (range == null) {
      throw 'range is required but was not provided';
    }
  }
  factory DocumentHighlight.fromJson(Map<String, dynamic> json) {
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final kind = json['kind'] != null
        ? new DocumentHighlightKind.fromJson(json['kind'])
        : null;
    return new DocumentHighlight(range, kind);
  }

  /// The highlight kind, default is DocumentHighlightKind.Text.
  final DocumentHighlightKind kind;

  /// The range this highlight applies to.
  final Range range;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['range'] = range ?? (throw 'range is required but was not set');
    if (kind != null) {
      __result['kind'] = kind;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']);
  }
}

/// A document highlight kind.
class DocumentHighlightKind {
  const DocumentHighlightKind._(this._value);
  const DocumentHighlightKind.fromJson(this._value);

  final Object _value;

  static bool canParse(Object obj) {
    switch (obj) {
      case 1:
      case 2:
      case 3:
        return true;
    }
    return false;
  }

  /// A textual occurrence.
  static const Text = const DocumentHighlightKind._(1);

  /// Read-access of a symbol, like reading a variable.
  static const Read = const DocumentHighlightKind._(2);

  /// Write-access of a symbol, like writing to a variable.
  static const Write = const DocumentHighlightKind._(3);

  Object toJson() => _value;

  @override
  String toString() => _value.toString();

  @override
  get hashCode => _value.hashCode;

  bool operator ==(o) => o is DocumentHighlightKind && o._value == _value;
}

/// A document link is a range in a text document that links to an
/// internal or external resource, like another text document or a web
/// site.
class DocumentLink implements ToJsonable {
  DocumentLink(this.range, this.target, this.data) {
    if (range == null) {
      throw 'range is required but was not provided';
    }
  }
  factory DocumentLink.fromJson(Map<String, dynamic> json) {
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final target = json['target'];
    final data = json['data'];
    return new DocumentLink(range, target, data);
  }

  /// A data entry field that is preserved on a document link between a
  /// DocumentLinkRequest and a DocumentLinkResolveRequest.
  final dynamic data;

  /// The range this link applies to.
  final Range range;

  /// The uri this link points to. If missing a resolve request is sent
  /// later.
  final String target;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['range'] = range ?? (throw 'range is required but was not set');
    if (target != null) {
      __result['target'] = target;
    }
    if (data != null) {
      __result['data'] = data;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']);
  }
}

/// Document link options.
class DocumentLinkOptions implements ToJsonable {
  DocumentLinkOptions(this.resolveProvider);
  factory DocumentLinkOptions.fromJson(Map<String, dynamic> json) {
    final resolveProvider = json['resolveProvider'];
    return new DocumentLinkOptions(resolveProvider);
  }

  /// Document links have a resolve provider as well.
  final bool resolveProvider;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (resolveProvider != null) {
      __result['resolveProvider'] = resolveProvider;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic>;
  }
}

class DocumentLinkParams implements ToJsonable {
  DocumentLinkParams(this.textDocument) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
  }
  factory DocumentLinkParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    return new DocumentLinkParams(textDocument);
  }

  /// The document to provide document links for.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']);
  }
}

class DocumentLinkRegistrationOptions
    implements TextDocumentRegistrationOptions, ToJsonable {
  DocumentLinkRegistrationOptions(this.resolveProvider, this.documentSelector);
  factory DocumentLinkRegistrationOptions.fromJson(Map<String, dynamic> json) {
    final resolveProvider = json['resolveProvider'];
    final documentSelector = json['documentSelector']
        ?.map((item) => item != null ? new DocumentFilter.fromJson(item) : null)
        ?.cast<DocumentFilter>()
        ?.toList();
    return new DocumentLinkRegistrationOptions(
        resolveProvider, documentSelector);
  }

  /// A document selector to identify the scope of the registration. If
  /// set to null the document selector provided on the client side will
  /// be used.
  final List<DocumentFilter> documentSelector;

  /// Document links have a resolve provider as well.
  final bool resolveProvider;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    if (resolveProvider != null) {
      __result['resolveProvider'] = resolveProvider;
    }
    __result['documentSelector'] = documentSelector;
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('documentSelector') &&
        (obj['documentSelector'] is List &&
            (obj['documentSelector'].length == 0 ||
                obj['documentSelector']
                    .every((item) => DocumentFilter.canParse(item))));
  }
}

/// Format document on type options.
class DocumentOnTypeFormattingOptions implements ToJsonable {
  DocumentOnTypeFormattingOptions(
      this.firstTriggerCharacter, this.moreTriggerCharacter) {
    if (firstTriggerCharacter == null) {
      throw 'firstTriggerCharacter is required but was not provided';
    }
  }
  factory DocumentOnTypeFormattingOptions.fromJson(Map<String, dynamic> json) {
    final firstTriggerCharacter = json['firstTriggerCharacter'];
    final moreTriggerCharacter = json['moreTriggerCharacter']
        ?.map((item) => item)
        ?.cast<String>()
        ?.toList();
    return new DocumentOnTypeFormattingOptions(
        firstTriggerCharacter, moreTriggerCharacter);
  }

  /// A character on which formatting should be triggered, like `}`.
  final String firstTriggerCharacter;

  /// More trigger characters.
  final List<String> moreTriggerCharacter;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['firstTriggerCharacter'] = firstTriggerCharacter ??
        (throw 'firstTriggerCharacter is required but was not set');
    if (moreTriggerCharacter != null) {
      __result['moreTriggerCharacter'] = moreTriggerCharacter;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('firstTriggerCharacter') &&
        obj['firstTriggerCharacter'] is String;
  }
}

class DocumentOnTypeFormattingParams implements ToJsonable {
  DocumentOnTypeFormattingParams(
      this.textDocument, this.position, this.ch, this.options) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (position == null) {
      throw 'position is required but was not provided';
    }
    if (ch == null) {
      throw 'ch is required but was not provided';
    }
    if (options == null) {
      throw 'options is required but was not provided';
    }
  }
  factory DocumentOnTypeFormattingParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final position = json['position'] != null
        ? new Position.fromJson(json['position'])
        : null;
    final ch = json['ch'];
    final options = json['options'] != null
        ? new FormattingOptions.fromJson(json['options'])
        : null;
    return new DocumentOnTypeFormattingParams(
        textDocument, position, ch, options);
  }

  /// The character that has been typed.
  final String ch;

  /// The format options.
  final FormattingOptions options;

  /// The position at which this request was sent.
  final Position position;

  /// The document to format.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['position'] =
        position ?? (throw 'position is required but was not set');
    __result['ch'] = ch ?? (throw 'ch is required but was not set');
    __result['options'] =
        options ?? (throw 'options is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('position') &&
        Position.canParse(obj['position']) &&
        obj.containsKey('ch') &&
        obj['ch'] is String &&
        obj.containsKey('options') &&
        FormattingOptions.canParse(obj['options']);
  }
}

class DocumentOnTypeFormattingRegistrationOptions
    implements TextDocumentRegistrationOptions, ToJsonable {
  DocumentOnTypeFormattingRegistrationOptions(this.firstTriggerCharacter,
      this.moreTriggerCharacter, this.documentSelector) {
    if (firstTriggerCharacter == null) {
      throw 'firstTriggerCharacter is required but was not provided';
    }
  }
  factory DocumentOnTypeFormattingRegistrationOptions.fromJson(
      Map<String, dynamic> json) {
    final firstTriggerCharacter = json['firstTriggerCharacter'];
    final moreTriggerCharacter = json['moreTriggerCharacter']
        ?.map((item) => item)
        ?.cast<String>()
        ?.toList();
    final documentSelector = json['documentSelector']
        ?.map((item) => item != null ? new DocumentFilter.fromJson(item) : null)
        ?.cast<DocumentFilter>()
        ?.toList();
    return new DocumentOnTypeFormattingRegistrationOptions(
        firstTriggerCharacter, moreTriggerCharacter, documentSelector);
  }

  /// A document selector to identify the scope of the registration. If
  /// set to null the document selector provided on the client side will
  /// be used.
  final List<DocumentFilter> documentSelector;

  /// A character on which formatting should be triggered, like `}`.
  final String firstTriggerCharacter;

  /// More trigger characters.
  final List<String> moreTriggerCharacter;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['firstTriggerCharacter'] = firstTriggerCharacter ??
        (throw 'firstTriggerCharacter is required but was not set');
    if (moreTriggerCharacter != null) {
      __result['moreTriggerCharacter'] = moreTriggerCharacter;
    }
    __result['documentSelector'] = documentSelector;
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('firstTriggerCharacter') &&
        obj['firstTriggerCharacter'] is String &&
        obj.containsKey('documentSelector') &&
        (obj['documentSelector'] is List &&
            (obj['documentSelector'].length == 0 ||
                obj['documentSelector']
                    .every((item) => DocumentFilter.canParse(item))));
  }
}

class DocumentRangeFormattingParams implements ToJsonable {
  DocumentRangeFormattingParams(this.textDocument, this.range, this.options) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
    if (range == null) {
      throw 'range is required but was not provided';
    }
    if (options == null) {
      throw 'options is required but was not provided';
    }
  }
  factory DocumentRangeFormattingParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final options = json['options'] != null
        ? new FormattingOptions.fromJson(json['options'])
        : null;
    return new DocumentRangeFormattingParams(textDocument, range, options);
  }

  /// The format options
  final FormattingOptions options;

  /// The range to format
  final Range range;

  /// The document to format.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    __result['range'] = range ?? (throw 'range is required but was not set');
    __result['options'] =
        options ?? (throw 'options is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']) &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']) &&
        obj.containsKey('options') &&
        FormattingOptions.canParse(obj['options']);
  }
}

/// Represents programming constructs like variables, classes,
/// interfaces etc. that appear in a document. Document symbols can be
/// hierarchical and they have two ranges: one that encloses its
/// definition and one that points to its most interesting range, e.g.
/// the range of an identifier.
class DocumentSymbol implements ToJsonable {
  DocumentSymbol(this.name, this.detail, this.kind, this.deprecated, this.range,
      this.selectionRange, this.children) {
    if (name == null) {
      throw 'name is required but was not provided';
    }
    if (kind == null) {
      throw 'kind is required but was not provided';
    }
    if (range == null) {
      throw 'range is required but was not provided';
    }
    if (selectionRange == null) {
      throw 'selectionRange is required but was not provided';
    }
  }
  factory DocumentSymbol.fromJson(Map<String, dynamic> json) {
    final name = json['name'];
    final detail = json['detail'];
    final kind =
        json['kind'] != null ? new SymbolKind.fromJson(json['kind']) : null;
    final deprecated = json['deprecated'];
    final range =
        json['range'] != null ? new Range.fromJson(json['range']) : null;
    final selectionRange = json['selectionRange'] != null
        ? new Range.fromJson(json['selectionRange'])
        : null;
    final children = json['children']
        ?.map((item) => item != null ? new DocumentSymbol.fromJson(item) : null)
        ?.cast<DocumentSymbol>()
        ?.toList();
    return new DocumentSymbol(
        name, detail, kind, deprecated, range, selectionRange, children);
  }

  /// Children of this symbol, e.g. properties of a class.
  final List<DocumentSymbol> children;

  /// Indicates if this symbol is deprecated.
  final bool deprecated;

  /// More detail for this symbol, e.g the signature of a function.
  final String detail;

  /// The kind of this symbol.
  final SymbolKind kind;

  /// The name of this symbol.
  final String name;

  /// The range enclosing this symbol not including leading/trailing
  /// whitespace but everything else like comments. This information is
  /// typically used to determine if the clients cursor is inside the
  /// symbol to reveal in the symbol in the UI.
  final Range range;

  /// The range that should be selected and revealed when this symbol is
  /// being picked, e.g the name of a function. Must be contained by the
  /// `range`.
  final Range selectionRange;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['name'] = name ?? (throw 'name is required but was not set');
    if (detail != null) {
      __result['detail'] = detail;
    }
    __result['kind'] = kind ?? (throw 'kind is required but was not set');
    if (deprecated != null) {
      __result['deprecated'] = deprecated;
    }
    __result['range'] = range ?? (throw 'range is required but was not set');
    __result['selectionRange'] =
        selectionRange ?? (throw 'selectionRange is required but was not set');
    if (children != null) {
      __result['children'] = children;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('name') &&
        obj['name'] is String &&
        obj.containsKey('kind') &&
        SymbolKind.canParse(obj['kind']) &&
        obj.containsKey('range') &&
        Range.canParse(obj['range']) &&
        obj.containsKey('selectionRange') &&
        Range.canParse(obj['selectionRange']);
  }
}

class DocumentSymbolParams implements ToJsonable {
  DocumentSymbolParams(this.textDocument) {
    if (textDocument == null) {
      throw 'textDocument is required but was not provided';
    }
  }
  factory DocumentSymbolParams.fromJson(Map<String, dynamic> json) {
    final textDocument = json['textDocument'] != null
        ? new TextDocumentIdentifier.fromJson(json['textDocument'])
        : null;
    return new DocumentSymbolParams(textDocument);
  }

  /// The text document.
  final TextDocumentIdentifier textDocument;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['textDocument'] =
        textDocument ?? (throw 'textDocument is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('textDocument') &&
        TextDocumentIdentifier.canParse(obj['textDocument']);
  }
}

abstract class ErrorCodes {
  static const InternalError = -32603;
  static const InvalidParams = -32602;
  static const InvalidRequest = -32600;
  static const MethodNotFound = -32601;
  static const ParseError = -32700;
  static const RequestCancelled = -32800;
  static const ServerNotInitialized = -32002;
  static const UnknownErrorCode = -32001;
  static const serverErrorEnd = -32000;
  static const serverErrorStart = -32099;
}

/// Execute command options.
class ExecuteCommandOptions implements ToJsonable {
  ExecuteCommandOptions(this.commands) {
    if (commands == null) {
      throw 'commands is required but was not provided';
    }
  }
  factory ExecuteCommandOptions.fromJson(Map<String, dynamic> json) {
    final commands =
        json['commands']?.map((item) => item)?.cast<String>()?.toList();
    return new ExecuteCommandOptions(commands);
  }

  /// The commands to be executed on the server
  final List<String> commands;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['commands'] =
        commands ?? (throw 'commands is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('commands') &&
        (obj['commands'] is List &&
            (obj['commands'].length == 0 ||
                obj['commands'].every((item) => item is String)));
  }
}

class ExecuteCommandParams implements ToJsonable {
  ExecuteCommandParams(this.command, this.arguments) {
    if (command == null) {
      throw 'command is required but was not provided';
    }
  }
  factory ExecuteCommandParams.fromJson(Map<String, dynamic> json) {
    final command = json['command'];
    final arguments =
        json['arguments']?.map((item) => item)?.cast<dynamic>()?.toList();
    return new ExecuteCommandParams(command, arguments);
  }

  /// Arguments that the command should be invoked with.
  final List<dynamic> arguments;

  /// The identifier of the actual command handler.
  final String command;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['command'] =
        command ?? (throw 'command is required but was not set');
    if (arguments != null) {
      __result['arguments'] = arguments;
    }
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('command') &&
        obj['command'] is String;
  }
}

/// Execute command registration options.
class ExecuteCommandRegistrationOptions implements ToJsonable {
  ExecuteCommandRegistrationOptions(this.commands) {
    if (commands == null) {
      throw 'commands is required but was not provided';
    }
  }
  factory ExecuteCommandRegistrationOptions.fromJson(
      Map<String, dynamic> json) {
    final commands =
        json['commands']?.map((item) => item)?.cast<String>()?.toList();
    return new ExecuteCommandRegistrationOptions(commands);
  }

  /// The commands to be executed on the server
  final List<String> commands;

  Map<String, dynamic> toJson() {
    Map<String, dynamic> __result = {};
    __result['commands'] =
        commands ?? (throw 'commands is required but was not set');
    return __result;
  }

  static bool canParse(Object obj) {
    return obj is Map<String, dynamic> &&
        obj.containsKey('commands') &&
        (obj['commands'] is List &&
            (obj['commands'].length == 0 ||