Function getSubstitutionType

test/fixtures/snapshot/typescript.js:60454–60468

(baseType, substitute)

            return links.resolvedJSDocType;
        }
        function getSubstitutionType(baseType, substitute) {
            if (substitute.flags & 3 /* TypeFlags.AnyOrUnknown */ || substitute === baseType) {
                return baseType;
            }
            var id = "".concat(getTypeId(baseType), ">").concat(getTypeId(substitute));
            var cached = substitutionTypes.get(id);
            if (cached) {
                return cached;
            }
            var result = createType(33554432 /* TypeFlags.Substitution */);
            result.baseType = baseType;
            result.substitute = substitute;
            substitutionTypes.set(id, result);
            return result;
        }
        function isUnaryTupleTypeNode(node) {
            return node.kind === 184 /* SyntaxKind.TupleType */ && node.elements.length === 1;
        }