nodeTests.ts

namespace ts {
    // Literals

    export function isNumericLiteral(node: Node): node is NumericLiteral {
        return node.kind === SyntaxKind.NumericLiteral;
    }

    export function isBigIntLiteral(node: Node): node is BigIntLiteral {
        return node.kind === SyntaxKind.BigIntLiteral;
    }

    export function isStringLiteral(node: Node): node is StringLiteral {
        return node.kind === SyntaxKind.StringLiteral;
    }

    export function isJsxText(node: Node): node is JsxText {
        return node.kind === SyntaxKind.JsxText;
    }

    export function isRegularExpressionLiteral(node: Node): node is RegularExpressionLiteral {
        return node.kind === SyntaxKind.RegularExpressionLiteral;
    }

    export function isNoSubstitutionTemplateLiteral(node: Node): node is NoSubstitutionTemplateLiteral {
        return node.kind === SyntaxKind.NoSubstitutionTemplateLiteral;
    }

    // Pseudo-literals

    export function isTemplateHead(node: Node): node is TemplateHead {
        return node.kind === SyntaxKind.TemplateHead;
    }

    export function isTemplateMiddle(node: Node): node is TemplateMiddle {
        return node.kind === SyntaxKind.TemplateMiddle;
    }

    export function isTemplateTail(node: Node): node is TemplateTail {
        return node.kind === SyntaxKind.TemplateTail;
    }

    // Punctuation

    export function isDotDotDotToken(node: Node): node is DotDotDotToken {
        return node.kind === SyntaxKind.DotDotDotToken;
    }

    /*@internal*/
    export function isCommaToken(node: Node): node is Token<SyntaxKind.CommaToken> {
        return node.kind === SyntaxKind.CommaToken;
    }

    export function isPlusToken(node: Node): node is PlusToken {
        return node.kind === SyntaxKind.PlusToken;
    }

    export function isMinusToken(node: Node): node is MinusToken {
        return node.kind === SyntaxKind.MinusToken;
    }

    export function isAsteriskToken(node: Node): node is AsteriskToken {
        return node.kind === SyntaxKind.AsteriskToken;
    }

    /*@internal*/
    export function isExclamationToken(node: Node): node is ExclamationToken {
        return node.kind === SyntaxKind.ExclamationToken;
    }

    /*@internal*/
    export function isQuestionToken(node: Node): node is QuestionToken {
        return node.kind === SyntaxKind.QuestionToken;
    }

    /*@internal*/
    export function isColonToken(node: Node): node is ColonToken {
        return node.kind === SyntaxKind.ColonToken;
    }

    /*@internal*/
    export function isQuestionDotToken(node: Node): node is QuestionDotToken {
        return node.kind === SyntaxKind.QuestionDotToken;
    }

    /*@internal*/
    export function isEqualsGreaterThanToken(node: Node): node is EqualsGreaterThanToken {
        return node.kind === SyntaxKind.EqualsGreaterThanToken;
    }

    // Identifiers

    export function isIdentifier(node: Node): node is Identifier {
        return node.kind === SyntaxKind.Identifier;
    }

    export function isPrivateIdentifier(node: Node): node is PrivateIdentifier {
        return node.kind === SyntaxKind.PrivateIdentifier;
    }

    // Reserved Words

    /* @internal */
    export function isExportModifier(node: Node): node is ExportKeyword {
        return node.kind === SyntaxKind.ExportKeyword;
    }

    /* @internal */
    export function isAsyncModifier(node: Node): node is AsyncKeyword {
        return node.kind === SyntaxKind.AsyncKeyword;
    }

    /* @internal */
    export function isAssertsKeyword(node: Node): node is AssertsKeyword {
        return node.kind === SyntaxKind.AssertsKeyword;
    }

    /* @internal */
    export function isAwaitKeyword(node: Node): node is AwaitKeyword {
        return node.kind === SyntaxKind.AwaitKeyword;
    }

    /* @internal */
    export function isReadonlyKeyword(node: Node): node is ReadonlyKeyword {
        return node.kind === SyntaxKind.ReadonlyKeyword;
    }

    /* @internal */
    export function isStaticModifier(node: Node): node is StaticKeyword {
        return node.kind === SyntaxKind.StaticKeyword;
    }

    /* @internal */
    export function isAbstractModifier(node: Node): node is AbstractKeyword {
        return node.kind === SyntaxKind.AbstractKeyword;
    }

    /*@internal*/
    export function isSuperKeyword(node: Node): node is SuperExpression {
        return node.kind === SyntaxKind.SuperKeyword;
    }

    /*@internal*/
    export function isImportKeyword(node: Node): node is ImportExpression {
        return node.kind === SyntaxKind.ImportKeyword;
    }

    // Names

    export function isQualifiedName(node: Node): node is QualifiedName {
        return node.kind === SyntaxKind.QualifiedName;
    }

    export function isComputedPropertyName(node: Node): node is ComputedPropertyName {
        return node.kind === SyntaxKind.ComputedPropertyName;
    }

    // Signature elements

    export function isTypeParameterDeclaration(node: Node): node is TypeParameterDeclaration {
        return node.kind === SyntaxKind.TypeParameter;
    }

    // TODO(rbuckton): Rename to 'isParameterDeclaration'
    export function isParameter(node: Node): node is ParameterDeclaration {
        return node.kind === SyntaxKind.Parameter;
    }

    export function isDecorator(node: Node): node is Decorator {
        return node.kind === SyntaxKind.Decorator;
    }

    // TypeMember

    export function isPropertySignature(node: Node): node is PropertySignature {
        return node.kind === SyntaxKind.PropertySignature;
    }

    export function isPropertyDeclaration(node: Node): node is PropertyDeclaration {
        return node.kind === SyntaxKind.PropertyDeclaration;
    }

    export function isMethodSignature(node: Node): node is MethodSignature {
        return node.kind === SyntaxKind.MethodSignature;
    }

    export function isMethodDeclaration(node: Node): node is MethodDeclaration {
        return node.kind === SyntaxKind.MethodDeclaration;
    }

    export function isClassStaticBlockDeclaration(node: Node): node is ClassStaticBlockDeclaration {
        return node.kind === SyntaxKind.ClassStaticBlockDeclaration;
    }

    export function isConstructorDeclaration(node: Node): node is ConstructorDeclaration {
        return node.kind === SyntaxKind.Constructor;
    }

    export function isGetAccessorDeclaration(node: Node): node is GetAccessorDeclaration {
        return node.kind === SyntaxKind.GetAccessor;
    }

    export function isSetAccessorDeclaration(node: Node): node is SetAccessorDeclaration {
        return node.kind === SyntaxKind.SetAccessor;
    }

    export function isCallSignatureDeclaration(node: Node): node is CallSignatureDeclaration {
        return node.kind === SyntaxKind.CallSignature;
    }

    export function isConstructSignatureDeclaration(node: Node): node is ConstructSignatureDeclaration {
        return node.kind === SyntaxKind.ConstructSignature;
    }

    export function isIndexSignatureDeclaration(node: Node): node is IndexSignatureDeclaration {
        return node.kind === SyntaxKind.IndexSignature;
    }

    // Type

    export function isTypePredicateNode(node: Node): node is TypePredicateNode {
        return node.kind === SyntaxKind.TypePredicate;
    }

    export function isTypeReferenceNode(node: Node): node is TypeReferenceNode {
        return node.kind === SyntaxKind.TypeReference;
    }

    export function isFunctionTypeNode(node: Node): node is FunctionTypeNode {
        return node.kind === SyntaxKind.FunctionType;
    }

    export function isConstructorTypeNode(node: Node): node is ConstructorTypeNode {
        return node.kind === SyntaxKind.ConstructorType;
    }

    export function isTypeQueryNode(node: Node): node is TypeQueryNode {
        return node.kind === SyntaxKind.TypeQuery;
    }

    export function isTypeLiteralNode(node: Node): node is TypeLiteralNode {
        return node.kind === SyntaxKind.TypeLiteral;
    }

    export function isArrayTypeNode(node: Node): node is ArrayTypeNode {
        return node.kind === SyntaxKind.ArrayType;
    }

    export function isTupleTypeNode(node: Node): node is TupleTypeNode {
        return node.kind === SyntaxKind.TupleType;
    }

    export function isNamedTupleMember(node: Node): node is NamedTupleMember {
        return node.kind === SyntaxKind.NamedTupleMember;
    }

    export function isOptionalTypeNode(node: Node): node is OptionalTypeNode {
        return node.kind === SyntaxKind.OptionalType;
    }

    export function isRestTypeNode(node: Node): node is RestTypeNode {
        return node.kind === SyntaxKind.RestType;
    }

    export function isUnionTypeNode(node: Node): node is UnionTypeNode {
        return node.kind === SyntaxKind.UnionType;
    }

    export function isIntersectionTypeNode(node: Node): node is IntersectionTypeNode {
        return node.kind === SyntaxKind.IntersectionType;
    }

    export function isConditionalTypeNode(node: Node): node is ConditionalTypeNode {
        return node.kind === SyntaxKind.ConditionalType;
    }

    export function isInferTypeNode(node: Node): node is InferTypeNode {
        return node.kind === SyntaxKind.InferType;
    }

    export function isParenthesizedTypeNode(node: Node): node is ParenthesizedTypeNode {
        return node.kind === SyntaxKind.ParenthesizedType;
    }

    export function isThisTypeNode(node: Node): node is ThisTypeNode {
        return node.kind === SyntaxKind.ThisType;
    }

    export function isTypeOperatorNode(node: Node): node is TypeOperatorNode {
        return node.kind === SyntaxKind.TypeOperator;
    }

    export function isIndexedAccessTypeNode(node: Node): node is IndexedAccessTypeNode {
        return node.kind === SyntaxKind.IndexedAccessType;
    }

    export function isMappedTypeNode(node: Node): node is MappedTypeNode {
        return node.kind === SyntaxKind.MappedType;
    }

    export function isLiteralTypeNode(node: Node): node is LiteralTypeNode {
        return node.kind === SyntaxKind.LiteralType;
    }

    export function isImportTypeNode(node: Node): node is ImportTypeNode {
        return node.kind === SyntaxKind.ImportType;
    }

    export function isTemplateLiteralTypeSpan(node: Node): node is TemplateLiteralTypeSpan {
        return node.kind === SyntaxKind.TemplateLiteralTypeSpan;
    }

    export function isTemplateLiteralTypeNode(node: Node): node is TemplateLiteralTypeNode {
        return node.kind === SyntaxKind.TemplateLiteralType;
    }

    // Binding patterns

    export function isObjectBindingPattern(node: Node): node is ObjectBindingPattern {
        return node.kind === SyntaxKind.ObjectBindingPattern;
    }

    export function isArrayBindingPattern(node: Node): node is ArrayBindingPattern {
        return node.kind === SyntaxKind.ArrayBindingPattern;
    }

    export function isBindingElement(node: Node): node is BindingElement {
        return node.kind === SyntaxKind.BindingElement;
    }

    // Expression

    export function isArrayLiteralExpression(node: Node): node is ArrayLiteralExpression {
        return node.kind === SyntaxKind.ArrayLiteralExpression;
    }

    export function isObjectLiteralExpression(node: Node): node is ObjectLiteralExpression {
        return node.kind === SyntaxKind.ObjectLiteralExpression;
    }

    export function isPropertyAccessExpression(node: Node): node is PropertyAccessExpression {
        return node.kind === SyntaxKind.PropertyAccessExpression;
    }

    export function isElementAccessExpression(node: Node): node is ElementAccessExpression {
        return node.kind === SyntaxKind.ElementAccessExpression;
    }

    export function isCallExpression(node: Node): node is CallExpression {
        return node.kind === SyntaxKind.CallExpression;
    }

    export function isNewExpression(node: Node): node is NewExpression {
        return node.kind === SyntaxKind.NewExpression;
    }

    export function isTaggedTemplateExpression(node: Node): node is TaggedTemplateExpression {
        return node.kind === SyntaxKind.TaggedTemplateExpression;
    }

    export function isTypeAssertionExpression(node: Node): node is TypeAssertion {
        return node.kind === SyntaxKind.TypeAssertionExpression;
    }

    export function isParenthesizedExpression(node: Node): node is ParenthesizedExpression {
        return node.kind === SyntaxKind.ParenthesizedExpression;
    }

    export function isFunctionExpression(node: Node): node is FunctionExpression {
        return node.kind === SyntaxKind.FunctionExpression;
    }

    export function isArrowFunction(node: Node): node is ArrowFunction {
        return node.kind === SyntaxKind.ArrowFunction;
    }

    export function isDeleteExpression(node: Node): node is DeleteExpression {
        return node.kind === SyntaxKind.DeleteExpression;
    }

    export function isTypeOfExpression(node: Node): node is TypeOfExpression {
        return node.kind === SyntaxKind.TypeOfExpression;
    }

    export function isVoidExpression(node: Node): node is VoidExpression {
        return node.kind === SyntaxKind.VoidExpression;
    }

    export function isAwaitExpression(node: Node): node is AwaitExpression {
        return node.kind === SyntaxKind.AwaitExpression;
    }

    export function isPrefixUnaryExpression(node: Node): node is PrefixUnaryExpression {
        return node.kind === SyntaxKind.PrefixUnaryExpression;
    }

    export function isPostfixUnaryExpression(node: Node): node is PostfixUnaryExpression {
        return node.kind === SyntaxKind.PostfixUnaryExpression;
    }

    export function isBinaryExpression(node: Node): node is BinaryExpression {
        return node.kind === SyntaxKind.BinaryExpression;
    }

    export function isConditionalExpression(node: Node): node is ConditionalExpression {
        return node.kind === SyntaxKind.ConditionalExpression;
    }

    export function isTemplateExpression(node: Node): node is TemplateExpression {
        return node.kind === SyntaxKind.TemplateExpression;
    }

    export function isYieldExpression(node: Node): node is YieldExpression {
        return node.kind === SyntaxKind.YieldExpression;
    }

    export function isSpreadElement(node: Node): node is SpreadElement {
        return node.kind === SyntaxKind.SpreadElement;
    }

    export function isClassExpression(node: Node): node is ClassExpression {
        return node.kind === SyntaxKind.ClassExpression;
    }

    export function isOmittedExpression(node: Node): node is OmittedExpression {
        return node.kind === SyntaxKind.OmittedExpression;
    }

    export function isExpressionWithTypeArguments(node: Node): node is ExpressionWithTypeArguments {
        return node.kind === SyntaxKind.ExpressionWithTypeArguments;
    }

    export function isAsExpression(node: Node): node is AsExpression {
        return node.kind === SyntaxKind.AsExpression;
    }

    export function isNonNullExpression(node: Node): node is NonNullExpression {
        return node.kind === SyntaxKind.NonNullExpression;
    }

    export function isMetaProperty(node: Node): node is MetaProperty {
        return node.kind === SyntaxKind.MetaProperty;
    }

    export function isSyntheticExpression(node: Node): node is SyntheticExpression {
        return node.kind === SyntaxKind.SyntheticExpression;
    }

    export function isPartiallyEmittedExpression(node: Node): node is PartiallyEmittedExpression {
        return node.kind === SyntaxKind.PartiallyEmittedExpression;
    }

    export function isCommaListExpression(node: Node): node is CommaListExpression {
        return node.kind === SyntaxKind.CommaListExpression;
    }

    // Misc

    export function isTemplateSpan(node: Node): node is TemplateSpan {
        return node.kind === SyntaxKind.TemplateSpan;
    }

    export function isSemicolonClassElement(node: Node): node is SemicolonClassElement {
        return node.kind === SyntaxKind.SemicolonClassElement;
    }

    // Elements

    export function isBlock(node: Node): node is Block {
        return node.kind === SyntaxKind.Block;
    }

    export function isVariableStatement(node: Node): node is VariableStatement {
        return node.kind === SyntaxKind.VariableStatement;
    }

    export function isEmptyStatement(node: Node): node is EmptyStatement {
        return node.kind === SyntaxKind.EmptyStatement;
    }

    export function isExpressionStatement(node: Node): node is ExpressionStatement {
        return node.kind === SyntaxKind.ExpressionStatement;
    }

    export function isIfStatement(node: Node): node is IfStatement {
        return node.kind === SyntaxKind.IfStatement;
    }

    export function isDoStatement(node: Node): node is DoStatement {
        return node.kind === SyntaxKind.DoStatement;
    }

    export function isWhileStatement(node: Node): node is WhileStatement {
        return node.kind === SyntaxKind.WhileStatement;
    }

    export function isForStatement(node: Node): node is ForStatement {
        return node.kind === SyntaxKind.ForStatement;
    }

    export function isForInStatement(node: Node): node is ForInStatement {
        return node.kind === SyntaxKind.ForInStatement;
    }

    export function isForOfStatement(node: Node): node is ForOfStatement {
        return node.kind === SyntaxKind.ForOfStatement;
    }

    export function isContinueStatement(node: Node): node is ContinueStatement {
        return node.kind === SyntaxKind.ContinueStatement;
    }

    export function isBreakStatement(node: Node): node is BreakStatement {
        return node.kind === SyntaxKind.BreakStatement;
    }

    export function isReturnStatement(node: Node): node is ReturnStatement {
        return node.kind === SyntaxKind.ReturnStatement;
    }

    export function isWithStatement(node: Node): node is WithStatement {
        return node.kind === SyntaxKind.WithStatement;
    }

    export function isSwitchStatement(node: Node): node is SwitchStatement {
        return node.kind === SyntaxKind.SwitchStatement;
    }

    export function isLabeledStatement(node: Node): node is LabeledStatement {
        return node.kind === SyntaxKind.LabeledStatement;
    }

    export function isThrowStatement(node: Node): node is ThrowStatement {
        return node.kind === SyntaxKind.ThrowStatement;
    }

    export function isTryStatement(node: Node): node is TryStatement {
        return node.kind === SyntaxKind.TryStatement;
    }

    export function isDebuggerStatement(node: Node): node is DebuggerStatement {
        return node.kind === SyntaxKind.DebuggerStatement;
    }

    export function isVariableDeclaration(node: Node): node is VariableDeclaration {
        return node.kind === SyntaxKind.VariableDeclaration;
    }

    export function isVariableDeclarationList(node: Node): node is VariableDeclarationList {
        return node.kind === SyntaxKind.VariableDeclarationList;
    }

    export function isFunctionDeclaration(node: Node): node is FunctionDeclaration {
        return node.kind === SyntaxKind.FunctionDeclaration;
    }

    export function isClassDeclaration(node: Node): node is ClassDeclaration {
        return node.kind === SyntaxKind.ClassDeclaration;
    }

    export function isInterfaceDeclaration(node: Node): node is InterfaceDeclaration {
        return node.kind === SyntaxKind.InterfaceDeclaration;
    }

    export function isTypeAliasDeclaration(node: Node): node is TypeAliasDeclaration {
        return node.kind === SyntaxKind.TypeAliasDeclaration;
    }

    export function isEnumDeclaration(node: Node): node is EnumDeclaration {
        return node.kind === SyntaxKind.EnumDeclaration;
    }

    export function isModuleDeclaration(node: Node): node is ModuleDeclaration {
        return node.kind === SyntaxKind.ModuleDeclaration;
    }

    export function isModuleBlock(node: Node): node is ModuleBlock {
        return node.kind === SyntaxKind.ModuleBlock;
    }

    export function isCaseBlock(node: Node): node is CaseBlock {
        return node.kind === SyntaxKind.CaseBlock;
    }

    export function isNamespaceExportDeclaration(node: Node): node is NamespaceExportDeclaration {
        return node.kind === SyntaxKind.NamespaceExportDeclaration;
    }

    export function isImportEqualsDeclaration(node: Node): node is ImportEqualsDeclaration {
        return node.kind === SyntaxKind.ImportEqualsDeclaration;
    }

    export function isImportDeclaration(node: Node): node is ImportDeclaration {
        return node.kind === SyntaxKind.ImportDeclaration;
    }

    export function isImportClause(node: Node): node is ImportClause {
        return node.kind === SyntaxKind.ImportClause;
    }

    export function isImportTypeAssertionContainer(node: Node): node is ImportTypeAssertionContainer {
        return node.kind === SyntaxKind.ImportTypeAssertionContainer;
    }

    export function isAssertClause(node: Node): node is AssertClause {
        return node.kind === SyntaxKind.AssertClause;
    }

    export function isAssertEntry(node: Node): node is AssertEntry {
        return node.kind === SyntaxKind.AssertEntry;
    }

    export function isNamespaceImport(node: Node): node is NamespaceImport {
        return node.kind === SyntaxKind.NamespaceImport;
    }

    export function isNamespaceExport(node: Node): node is NamespaceExport {
        return node.kind === SyntaxKind.NamespaceExport;
    }

    export function isNamedImports(node: Node): node is NamedImports {
        return node.kind === SyntaxKind.NamedImports;
    }

    export function isImportSpecifier(node: Node): node is ImportSpecifier {
        return node.kind === SyntaxKind.ImportSpecifier;
    }

    export function isExportAssignment(node: Node): node is ExportAssignment {
        return node.kind === SyntaxKind.ExportAssignment;
    }

    export function isExportDeclaration(node: Node): node is ExportDeclaration {
        return node.kind === SyntaxKind.ExportDeclaration;
    }

    export function isNamedExports(node: Node): node is NamedExports {
        return node.kind === SyntaxKind.NamedExports;
    }

    export function isExportSpecifier(node: Node): node is ExportSpecifier {
        return node.kind === SyntaxKind.ExportSpecifier;
    }

    export function isMissingDeclaration(node: Node): node is MissingDeclaration {
        return node.kind === SyntaxKind.MissingDeclaration;
    }

    export function isNotEmittedStatement(node: Node): node is NotEmittedStatement {
        return node.kind === SyntaxKind.NotEmittedStatement;
    }

    /* @internal */
    export function isSyntheticReference(node: Node): node is SyntheticReferenceExpression {
        return node.kind === SyntaxKind.SyntheticReferenceExpression;
    }

    /* @internal */
    export function isMergeDeclarationMarker(node: Node): node is MergeDeclarationMarker {
        return node.kind === SyntaxKind.MergeDeclarationMarker;
    }

    /* @internal */
    export function isEndOfDeclarationMarker(node: Node): node is EndOfDeclarationMarker {
        return node.kind === SyntaxKind.EndOfDeclarationMarker;
    }

    // Module References

    export function isExternalModuleReference(node: Node): node is ExternalModuleReference {
        return node.kind === SyntaxKind.ExternalModuleReference;
    }

    // JSX

    export function isJsxElement(node: Node): node is JsxElement {
        return node.kind === SyntaxKind.JsxElement;
    }

    export function isJsxSelfClosingElement(node: Node): node is JsxSelfClosingElement {
        return node.kind === SyntaxKind.JsxSelfClosingElement;
    }

    export function isJsxOpeningElement(node: Node): node is JsxOpeningElement {
        return node.kind === SyntaxKind.JsxOpeningElement;
    }

    export function isJsxClosingElement(node: Node): node is JsxClosingElement {
        return node.kind === SyntaxKind.JsxClosingElement;
    }

    export function isJsxFragment(node: Node): node is JsxFragment {
        return node.kind === SyntaxKind.JsxFragment;
    }

    export function isJsxOpeningFragment(node: Node): node is JsxOpeningFragment {
        return node.kind === SyntaxKind.JsxOpeningFragment;
    }

    export function isJsxClosingFragment(node: Node): node is JsxClosingFragment {
        return node.kind === SyntaxKind.JsxClosingFragment;
    }

    export function isJsxAttribute(node: Node): node is JsxAttribute {
        return node.kind === SyntaxKind.JsxAttribute;
    }

    export function isJsxAttributes(node: Node): node is JsxAttributes {
        return node.kind === SyntaxKind.JsxAttributes;
    }

    export function isJsxSpreadAttribute(node: Node): node is JsxSpreadAttribute {
        return node.kind === SyntaxKind.JsxSpreadAttribute;
    }

    export function isJsxExpression(node: Node): node is JsxExpression {
        return node.kind === SyntaxKind.JsxExpression;
    }

    // Clauses

    export function isCaseClause(node: Node): node is CaseClause {
        return node.kind === SyntaxKind.CaseClause;
    }

    export function isDefaultClause(node: Node): node is DefaultClause {
        return node.kind === SyntaxKind.DefaultClause;
    }

    export function isHeritageClause(node: Node): node is HeritageClause {
        return node.kind === SyntaxKind.HeritageClause;
    }

    export function isCatchClause(node: Node): node is CatchClause {
        return node.kind === SyntaxKind.CatchClause;
    }

    // Property assignments

    export function isPropertyAssignment(node: Node): node is PropertyAssignment {
        return node.kind === SyntaxKind.PropertyAssignment;
    }

    export function isShorthandPropertyAssignment(node: Node): node is ShorthandPropertyAssignment {
        return node.kind === SyntaxKind.ShorthandPropertyAssignment;
    }

    export function isSpreadAssignment(node: Node): node is SpreadAssignment {
        return node.kind === SyntaxKind.SpreadAssignment;
    }

    // Enum

    export function isEnumMember(node: Node): node is EnumMember {
        return node.kind === SyntaxKind.EnumMember;
    }

    // Unparsed

    // TODO(rbuckton): isUnparsedPrologue

    export function isUnparsedPrepend(node: Node): node is UnparsedPrepend {
        return node.kind === SyntaxKind.UnparsedPrepend;
    }

    // TODO(rbuckton): isUnparsedText
    // TODO(rbuckton): isUnparsedInternalText
    // TODO(rbuckton): isUnparsedSyntheticReference

    // Top-level nodes
    export function isSourceFile(node: Node): node is SourceFile {
        return node.kind === SyntaxKind.SourceFile;
    }

    export function isBundle(node: Node): node is Bundle {
        return node.kind === SyntaxKind.Bundle;
    }

    export function isUnparsedSource(node: Node): node is UnparsedSource {
        return node.kind === SyntaxKind.UnparsedSource;
    }

    // TODO(rbuckton): isInputFiles

    // JSDoc Elements

    export function isJSDocTypeExpression(node: Node): node is JSDocTypeExpression {
        return node.kind === SyntaxKind.JSDocTypeExpression;
    }

    export function isJSDocNameReference(node: Node): node is JSDocNameReference {
        return node.kind === SyntaxKind.JSDocNameReference;
    }

    export function isJSDocMemberName(node: Node): node is JSDocMemberName {
        return node.kind === SyntaxKind.JSDocMemberName;
    }

    export function isJSDocLink(node: Node): node is JSDocLink {
        return node.kind === SyntaxKind.JSDocLink;
    }

    export function isJSDocLinkCode(node: Node): node is JSDocLinkCode {
        return node.kind === SyntaxKind.JSDocLinkCode;
    }

    export function isJSDocLinkPlain(node: Node): node is JSDocLinkPlain {
        return node.kind === SyntaxKind.JSDocLinkPlain;
    }

    export function isJSDocAllType(node: Node): node is JSDocAllType {
        return node.kind === SyntaxKind.JSDocAllType;
    }

    export function isJSDocUnknownType(node: Node): node is JSDocUnknownType {
        return node.kind === SyntaxKind.JSDocUnknownType;
    }

    export function isJSDocNullableType(node: Node): node is JSDocNullableType {
        return node.kind === SyntaxKind.JSDocNullableType;
    }

    export function isJSDocNonNullableType(node: Node): node is JSDocNonNullableType {
        return node.kind === SyntaxKind.JSDocNonNullableType;
    }

    export function isJSDocOptionalType(node: Node): node is JSDocOptionalType {
        return node.kind === SyntaxKind.JSDocOptionalType;
    }

    export function isJSDocFunctionType(node: Node): node is JSDocFunctionType {
        return node.kind === SyntaxKind.JSDocFunctionType;
    }

    export function isJSDocVariadicType(node: Node): node is JSDocVariadicType {
        return node.kind === SyntaxKind.JSDocVariadicType;
    }

    export function isJSDocNamepathType(node: Node): node is JSDocNamepathType {
        return node.kind === SyntaxKind.JSDocNamepathType;
    }

    export function isJSDoc(node: Node): node is JSDoc {
        return node.kind === SyntaxKind.JSDoc;
    }

    export function isJSDocTypeLiteral(node: Node): node is JSDocTypeLiteral {
        return node.kind === SyntaxKind.JSDocTypeLiteral;
    }

    export function isJSDocSignature(node: Node): node is JSDocSignature {
        return node.kind === SyntaxKind.JSDocSignature;
    }

    // JSDoc Tags

    export function isJSDocAugmentsTag(node: Node): node is JSDocAugmentsTag {
        return node.kind === SyntaxKind.JSDocAugmentsTag;
    }

    export function isJSDocAuthorTag(node: Node): node is JSDocAuthorTag {
        return node.kind === SyntaxKind.JSDocAuthorTag;
    }

    export function isJSDocClassTag(node: Node): node is JSDocClassTag {
        return node.kind === SyntaxKind.JSDocClassTag;
    }

    export function isJSDocCallbackTag(node: Node): node is JSDocCallbackTag {
        return node.kind === SyntaxKind.JSDocCallbackTag;
    }

    export function isJSDocPublicTag(node: Node): node is JSDocPublicTag {
        return node.kind === SyntaxKind.JSDocPublicTag;
    }

    export function isJSDocPrivateTag(node: Node): node is JSDocPrivateTag {
        return node.kind === SyntaxKind.JSDocPrivateTag;
    }

    export function isJSDocProtectedTag(node: Node): node is JSDocProtectedTag {
        return node.kind === SyntaxKind.JSDocProtectedTag;
    }

    export function isJSDocReadonlyTag(node: Node): node is JSDocReadonlyTag {
        return node.kind === SyntaxKind.JSDocReadonlyTag;
    }

    export function isJSDocOverrideTag(node: Node): node is JSDocOverrideTag {
        return node.kind === SyntaxKind.JSDocOverrideTag;
    }

    export function isJSDocDeprecatedTag(node: Node): node is JSDocDeprecatedTag {
        return node.kind === SyntaxKind.JSDocDeprecatedTag;
    }

    export function isJSDocSeeTag(node: Node): node is JSDocSeeTag {
        return node.kind === SyntaxKind.JSDocSeeTag;
    }

    export function isJSDocEnumTag(node: Node): node is JSDocEnumTag {
        return node.kind === SyntaxKind.JSDocEnumTag;
    }

    export function isJSDocParameterTag(node: Node): node is JSDocParameterTag {
        return node.kind === SyntaxKind.JSDocParameterTag;
    }

    export function isJSDocReturnTag(node: Node): node is JSDocReturnTag {
        return node.kind === SyntaxKind.JSDocReturnTag;
    }

    export function isJSDocThisTag(node: Node): node is JSDocThisTag {
        return node.kind === SyntaxKind.JSDocThisTag;
    }

    export function isJSDocTypeTag(node: Node): node is JSDocTypeTag {
        return node.kind === SyntaxKind.JSDocTypeTag;
    }

    export function isJSDocTemplateTag(node: Node): node is JSDocTemplateTag {
        return node.kind === SyntaxKind.JSDocTemplateTag;
    }

    export function isJSDocTypedefTag(node: Node): node is JSDocTypedefTag {
        return node.kind === SyntaxKind.JSDocTypedefTag;
    }

    export function isJSDocUnknownTag(node: Node): node is JSDocUnknownTag {
        return node.kind === SyntaxKind.JSDocTag;
    }

    export function isJSDocPropertyTag(node: Node): node is JSDocPropertyTag {
        return node.kind === SyntaxKind.JSDocPropertyTag;
    }

    export function isJSDocImplementsTag(node: Node): node is JSDocImplementsTag {
        return node.kind === SyntaxKind.JSDocImplementsTag;
    }

    // Synthesized list

    /* @internal */
    export function isSyntaxList(n: Node): n is SyntaxList {
        return n.kind === SyntaxKind.SyntaxList;
    }
}