BUILD

package(default_visibility = ["//visibility:public"])

load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_binary")
load("@io_bazel_rules_closure//closure:defs.bzl", "closure_js_library")

# With the externs file as a source for the library
closure_js_library(
    name = "foo",
    srcs = [
        "foo.js",
    ],
)

closure_js_binary(
    name = "foo_bin",
    defs = [
    ],
    entry_points = ["foo"],
    deps = [
        "//:foo",
    ],
)

externs.js

/**
 * @externs
 */

foo.js

goog.module('foo');

function parseComment0() {
  try {
    throw new Error;
  } catch (ex) {
    return ex.message;
  }
}

function parseComment1() {
  try {
    throw new Error;
  } catch (ex) {
    if (ex instanceof Error) return ex.message;
  }
}

function parseComment2() {
  try {
    throw new Error;
  } catch (ex) {
    return /** @type {!Error} */ (ex).message;
  }
}

function parseComment3() {
  try {
    throw new Error;
  } catch (ex) {
    const error = /** @type {!Error} */ (ex);
    return error.message;
  }
}

WORKSPACE

http_archive(
    name = "io_bazel_rules_closure",
    sha256 = "c104d30b4aaf23d72afe327b4478d1c08cf1ff75c6db2060682bb7ad0591e19b",
    strip_prefix = "rules_closure-962d929bc769fc320dd395f54fef3e9db62c3920",
    urls = [
        "http://bazel-mirror.storage.googleapis.com/github.com/bazelbuild/rules_closure/archive/962d929bc769fc320dd395f54fef3e9db62c3920.tar.gz",  # 2016-12-28
        "https://github.com/bazelbuild/rules_closure/archive/962d929bc769fc320dd395f54fef3e9db62c3920.tar.gz",
    ],
)

load("@io_bazel_rules_closure//closure:defs.bzl", "closure_repositories")

closure_repositories()