Sync ToSecondsStringPrecision with spec

gibson042 · 12wrigja · commit 55a3fcd61dd8 · 2023-01-25T11:15:03.000-08:00
UPSTREAM_COMMIT=8acce003bd6dbb689c76117b7e5c851de75ce4a1
diff --git a/lib/ecmascript.ts b/lib/ecmascript.ts
@@ -956,10 +956,10 @@ export function ToSecondsStringPrecision(options: Temporal.ToStringPrecisionOpti
     if (stringDigits === 'auto') return { precision: 'auto', unit: 'nanosecond', increment: 1 };
     throw new RangeError(`fractionalSecondDigits must be 'auto' or 0 through 9, not ${stringDigits}`);
   }
-  if (NumberIsNaN(digits) || digits < 0 || digits > 9) {
+  const precision = ToInteger(digits);
+  if (!NumberIsFinite(digits) || precision < 0 || precision > 9) {
     throw new RangeError(`fractionalSecondDigits must be 'auto' or 0 through 9, not ${digits}`);
   }
-  const precision = MathFloor(digits);
   switch (precision) {
     case 0:
       return { precision, unit: 'second', increment: 1 };

Original file line number	Diff line number	Diff line change
`@@ -956,10 +956,10 @@ export function ToSecondsStringPrecision(options: Temporal.ToStringPrecisionOpti`
`956`	`956`	`if (stringDigits === 'auto') return { precision: 'auto', unit: 'nanosecond', increment: 1 };`
`957`	`957`	throw new RangeError(`fractionalSecondDigits must be 'auto' or 0 through 9, not ${stringDigits}`);
`958`	`958`	`}`
`959`		`- if (NumberIsNaN(digits) \|\| digits < 0 \|\| digits > 9) {`
	`959`	`+ const precision = ToInteger(digits);`
	`960`	`+ if (!NumberIsFinite(digits) \|\| precision < 0 \|\| precision > 9) {`
`960`	`961`	throw new RangeError(`fractionalSecondDigits must be 'auto' or 0 through 9, not ${digits}`);
`961`	`962`	`}`
`962`		`- const precision = MathFloor(digits);`
`963`	`963`	`switch (precision) {`
`964`	`964`	`case 0:`
`965`	`965`	`return { precision, unit: 'second', increment: 1 };`