Function getExternalModuleFileFromDeclaration

test/fixtures/snapshot/typescript.js:87470–87477

(declaration)

            }
        }
        function getExternalModuleFileFromDeclaration(declaration) {
            var specifier = declaration.kind === 261 /* SyntaxKind.ModuleDeclaration */ ? ts.tryCast(declaration.name, ts.isStringLiteral) : ts.getExternalModuleName(declaration);
            var moduleSymbol = resolveExternalModuleNameWorker(specifier, specifier, /*moduleNotFoundError*/ undefined); // TODO: GH#18217
            if (!moduleSymbol) {
                return undefined;
            }
            return ts.getDeclarationOfKind(moduleSymbol, 305 /* SyntaxKind.SourceFile */);
        }
        function initializeTypeChecker() {
            // Bind all source files and propagate errors
            for (var _i = 0, _a = host.getSourceFiles(); _i < _a.length; _i++) {