TypeScript/tests/cases/compiler/doubleUnderscoreEnumEmit.ts
Wesley Wigham 4e6b2f3c93 Created a branded type for identifier-escaped strings (#16915)
* Created a branded type for escaped strings

Then flowed it throughout the compiler, finding and fixing a handful of
bugs relating to underscore-prefixed identifiers in the process.
Includes a test for two cases noticed - diagnostics from conflicting
symbols from export *'s, and enum with underscore prefixed member emit.

* Correctly double underscores WRT mapped types

* Add fourslash tests for other fixed issues

* use function call over cast

* Update forEachEntry type accuracy

* Just use escaped names for ActiveLabel

* Remove casts from getPropertyNameForPropertyNameNode

* This pattern has occurred a few times, could use a helper function.

* Remove duplicated helper

* Remove unneeded check, use helper

* Identifiers list is no longer escaped strings

* Extract repeated string-getting code into helper

* Rename type and associated functions

* Make getName() return UnderscoreEscapedString, add getUnescapedName()

* Add list of internal symbol names to escaped string type to cut back on casting

* Remove outdated comments

* Reassign interned values to nodes, just in case

* Swap to string enum

* Add deprecated aliases to escapeIdentifier and unescapeIdentifier

* Add temp var

* Remove unsafe casts

* Rename escaped string type as per @sandersn's suggestion, fix string enum usages

* Reorganize double underscore tests

* Remove jfreeman from TODO

* Remove unneeded parenthesis
2017-07-06 14:45:50 -07:00

19 lines
332 B
TypeScript

enum Foo {
"__a" = 1,
"(Anonymous function)" = 2,
"(Anonymous class)" = 4,
"__call" = 10
}
namespace Foo {
export function ___call(): number {
return 5;
}
}
function Bar() {
return "no";
}
namespace Bar {
export function __call(x: number): number {
return 5;
}
}