Function getHomomorphicTypeVariable

test/fixtures/snapshot/typescript.js:63489–63498

(type)

            }
        }
        function getHomomorphicTypeVariable(type) {
            var constraintType = getConstraintTypeFromMappedType(type);
            if (constraintType.flags & 4194304 /* TypeFlags.Index */) {
                var typeVariable = getActualTypeVariable(constraintType.type);
                if (typeVariable.flags & 262144 /* TypeFlags.TypeParameter */) {
                    return typeVariable;
                }
            }
            return undefined;
        }
        function instantiateMappedType(type, mapper, aliasSymbol, aliasTypeArguments) {
            // For a homomorphic mapped type { [P in keyof T]: X }, where T is some type variable, the mapping
            // operation depends on T as follows: