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assertNever no longer crashes on string input (#29764)

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Nathan Shively-Sanders
2019-02-06 08:57:24 -08:00
committed by GitHub
parent 4505eea92d
commit 33af4ea250
2 changed files with 4 additions and 1 deletions
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src/compiler/core.ts
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@@ -1652,7 +1652,7 @@ namespace ts {
}
export function assertNever(member: never, message = "Illegal value:", stackCrawlMark?: AnyFunction): never {
const detail = "kind" in member && "pos" in member ? "SyntaxKind: " + showSyntaxKind(member as Node) : JSON.stringify(member);
const detail = typeof member === "object" && "kind" in member && "pos" in member ? "SyntaxKind: " + showSyntaxKind(member as Node) : JSON.stringify(member);
return fail(`${message} ${detail}`, stackCrawlMark || assertNever);
}