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4 changes: 4 additions & 0 deletions src/compiler/factory/nodeTests.ts
Original file line number Diff line number Diff line change
Expand Up @@ -177,6 +177,10 @@ namespace ts {
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;
}
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1 change: 1 addition & 0 deletions tests/baselines/reference/api/tsserverlibrary.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -4306,6 +4306,7 @@ declare namespace ts {
function isTypeLiteralNode(node: Node): node is TypeLiteralNode;
function isArrayTypeNode(node: Node): node is ArrayTypeNode;
function isTupleTypeNode(node: Node): node is TupleTypeNode;
function isNamedTupleMember(node: Node): node is NamedTupleMember;
function isOptionalTypeNode(node: Node): node is OptionalTypeNode;
function isRestTypeNode(node: Node): node is RestTypeNode;
function isUnionTypeNode(node: Node): node is UnionTypeNode;
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1 change: 1 addition & 0 deletions tests/baselines/reference/api/typescript.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -4306,6 +4306,7 @@ declare namespace ts {
function isTypeLiteralNode(node: Node): node is TypeLiteralNode;
function isArrayTypeNode(node: Node): node is ArrayTypeNode;
function isTupleTypeNode(node: Node): node is TupleTypeNode;
function isNamedTupleMember(node: Node): node is NamedTupleMember;
function isOptionalTypeNode(node: Node): node is OptionalTypeNode;
function isRestTypeNode(node: Node): node is RestTypeNode;
function isUnionTypeNode(node: Node): node is UnionTypeNode;
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