HH\Facts\type_name

Resolve a string into a classname that's properly capitalized and properly typed

namespace HH\Facts;

function type_name(
  string $classname,
): ?classname<nonnull>;

Return null if the classname does not exist in the codebase, even with different capitalization.

Throw InvalidOperationException if Facts is not enabled.

Parameters

• string $classname

Returns

• ?classname<nonnull>