TypeScript/tests/cases/conformance/salsa/propertyAssignmentOnParenthesizedNumber.ts

// @allowJs: true
// @checkJs: true
// @noEmit: true
// @Filename: bug38934.js

var x = {};
// should not crash and also should not result in a property '0' on x.
x[(0)] = 1;
isDynamicName skips parentheses for element access Neither `x[0]` nor `x[(0)]` should be dynamic names. Previously, the latter was because `isDynamicName` didn't skip parentheses. Since the binder treats dynamic names in property assignments as assignment declarations, this incorrectly tried to create a binding for expressions like `x[(0)] = 1`. This caused an assert because `x[(0)]` would not take the dynamic name code path during binding (`hasDynamicName` returned false), but the normal code path for static names. 2020-06-11 18:08:51 +02:00			`// @allowJs: true`
			`// @checkJs: true`
			`// @noEmit: true`
			`// @Filename: bug38934.js`

			`var x = {};`
			`// should not crash and also should not result in a property '0' on x.`
			`x[(0)] = 1;`