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Narrow string and number types in literal equality checks #11587

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Merged
ahejlsberg merged 5 commits into from
Oct 13, 2016
Merged

Narrow string and number types in literal equality checks #11587

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7497d81
Narrow string and number types in equality checks and switch cases
ahejlsberg Oct 12, 2016
4c581de
Fix bug in scanner
ahejlsberg Oct 12, 2016
7dd64d3
Properly narrow union types containing string and number
ahejlsberg Oct 13, 2016
57a9a63
Accept new baselines
ahejlsberg Oct 13, 2016
8bcb22c
Add tests
ahejlsberg Oct 13, 2016
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Fix bug in scanner
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@ahejlsberg
ahejlsberg committed Oct 12, 2016
commit 4c581def93d9d1dbeeb0528901f083cf05f198c3
2 changes: 1 addition & 1 deletion src/compiler/scanner.ts
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Expand Up @@ -1190,7 +1190,7 @@ namespace ts {
}

function scanBinaryOrOctalDigits(base: number): number {
Debug.assert(base !== 2 || base !== 8, "Expected either base 2 or base 8");
Debug.assert(base === 2 || base === 8, "Expected either base 2 or base 8");

let value = 0;
// For counting number of digits; Valid binaryIntegerLiteral must have at least one binary digit following B or b.
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