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Identical blocks of code found in 2 locations. Consider refactoring.
Open

  class BlobWorker extends Worker {
    constructor(blob: Uint8Array, options?: ThreadsWorkerOptions) {
      super(Buffer.from(blob).toString("utf-8"), { ...options, fromSource: true })
    }
Severity: Major
Found in src/master/implementation.node.ts and 1 other location - About 3 hrs to fix
src/master/implementation.node.ts on lines 236..244

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 110.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Identical blocks of code found in 2 locations. Consider refactoring.
Open

  class BlobWorker extends Worker {
    constructor(blob: Uint8Array, options?: ThreadsWorkerOptions) {
      super(Buffer.from(blob).toString("utf-8"), { ...options, fromSource: true })
    }
Severity: Major
Found in src/master/implementation.node.ts and 1 other location - About 3 hrs to fix
src/master/implementation.node.ts on lines 155..163

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 110.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

File pool.ts has 292 lines of code (exceeds 250 allowed). Consider refactoring.
Open

import DebugLogger from "debug"
import { multicast, Observable, Subject } from "observable-fns"
import { allSettled } from "../ponyfills"
import { defaultPoolSize } from "./implementation"
import {
Severity: Minor
Found in src/master/pool.ts - About 3 hrs to fix

    Identical blocks of code found in 3 locations. Consider refactoring.
    Open

    interface WorkerGlobalScope {
  addEventListener(eventName: string, listener: (event: Event) => void): void
  postMessage(message: any, transferables?: any[]): void
  removeEventListener(eventName: string, listener: (event: Event) => void): void
}
    Severity: Major
    Found in src/master/implementation.node.ts and 2 other locations - About 2 hrs to fix
    src/worker/implementation.browser.ts on lines 6..10
    src/worker/implementation.tiny-worker.ts on lines 6..10

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 86.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

      const terminateWorkersAndMaster = () => {
    // we should terminate all workers and then gracefully shutdown self process
    Promise.all(allWorkers.map(worker => worker.terminate())).then(
      () => process.exit(0),
      () => process.exit(1),
    Severity: Major
    Found in src/master/implementation.node.ts and 1 other location - About 2 hrs to fix
    src/master/implementation.node.ts on lines 222..229

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 82.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

      const terminateWorkersAndMaster = () => {
    // we should terminate all workers and then gracefully shutdown self process
    Promise.all(allWorkers.map(worker => worker.terminate())).then(
      () => process.exit(0),
      () => process.exit(1),
    Severity: Major
    Found in src/master/implementation.node.ts and 1 other location - About 2 hrs to fix
    src/master/implementation.node.ts on lines 142..149

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 82.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Function initTinyWorker has 57 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    function initTinyWorker(): ImplementationExport {
  const TinyWorker = require("tiny-worker")

  let allWorkers: Array<typeof TinyWorker> = []
    Severity: Major
    Found in src/master/implementation.node.ts - About 2 hrs to fix

      Function initWorkerThreadsWorker has 56 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      function initWorkerThreadsWorker(): ImplementationExport {
  // Webpack hack
  const NativeWorker = typeof __non_webpack_require__ === "function"
    ? __non_webpack_require__("worker_threads").Worker
    : eval("require")("worker_threads").Worker
      Severity: Major
      Found in src/master/implementation.node.ts - About 2 hrs to fix

        Function selectWorkerImplementation has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
        Open

        function selectWorkerImplementation(): ImplementationExport {
  if (typeof Worker === "undefined") {
    // Might happen on Safari, for instance
    // The idea is to only fail if the constructor is actually used
    return class NoWebWorker {
        Severity: Minor
        Found in src/master/implementation.browser.ts - About 2 hrs to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Function createObservableForJob has 45 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

        function createObservableForJob<ResultType>(worker: WorkerType, jobUID: number): Observable<ResultType> {
  return new Observable(observer => {
    let asyncType: "observable" | "promise" | undefined

    const messageHandler = ((event: MessageEvent) => {
        Severity: Minor
        Found in src/master/invocation-proxy.ts - About 1 hr to fix

          Function queue has 40 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

            public queue(taskFunction: TaskRunFunction<ThreadType, any>) {
    const { maxQueuedJobs = Infinity } = this.options

    if (this.isClosing) {
      throw Error(`Cannot schedule pool tasks after terminate() has been called.`)
          Severity: Minor
          Found in src/master/pool.ts - About 1 hr to fix

            Function selectWorkerImplementation has 39 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

            function selectWorkerImplementation(): ImplementationExport {
  if (typeof Worker === "undefined") {
    // Might happen on Safari, for instance
    // The idea is to only fail if the constructor is actually used
    return class NoWebWorker {
            Severity: Minor
            Found in src/master/implementation.browser.ts - About 1 hr to fix

              Identical blocks of code found in 2 locations. Consider refactoring.
              Open

              export function isWorkerRuntime() {
  const isWindowContext = typeof self !== "undefined" && typeof Window !== "undefined" && self instanceof Window
  return typeof self !== "undefined" && self.postMessage && !isWindowContext ? true : false
}
              Severity: Major
              Found in src/master/implementation.browser.ts and 1 other location - About 1 hr to fix
              src/worker/implementation.browser.ts on lines 14..17

              Duplicated Code

              Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

              Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

              When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

              Tuning

              This issue has a mass of 64.

              We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

              The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

              If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

              See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

              Refactorings

              Further Reading

              Identical blocks of code found in 2 locations. Consider refactoring.
              Open

              const isWorkerRuntime: AbstractedWorkerAPI["isWorkerRuntime"] = function isWorkerRuntime() {
  const isWindowContext = typeof self !== "undefined" && typeof Window !== "undefined" && self instanceof Window
  return typeof self !== "undefined" && self.postMessage && !isWindowContext ? true : false
}
              Severity: Major
              Found in src/worker/implementation.browser.ts and 1 other location - About 1 hr to fix
              src/master/implementation.browser.ts on lines 79..82

              Duplicated Code

              Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

              Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

              When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

              Tuning

              This issue has a mass of 64.

              We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

              The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

              If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

              See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

              Refactorings

              Further Reading

              Function initWorkerThreadsWorker has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
              Open

              function initWorkerThreadsWorker(): ImplementationExport {
  // Webpack hack
  const NativeWorker = typeof __non_webpack_require__ === "function"
    ? __non_webpack_require__("worker_threads").Worker
    : eval("require")("worker_threads").Worker
              Severity: Minor
              Found in src/master/implementation.node.ts - About 1 hr to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Function expose has 35 lines of code (exceeds 25 allowed). Consider refactoring.
              Open

              export function expose(exposed: WorkerFunction | WorkerModule<any>) {
  if (!Implementation.isWorkerRuntime()) {
    throw Error("expose() called in the master thread.")
  }
  if (exposeCalled) {
              Severity: Minor
              Found in src/worker/index.ts - About 1 hr to fix

                Function then has 33 lines of code (exceeds 25 allowed). Consider refactoring.
                Open

                  public then<TResult1 = T, TResult2 = never>(
    onFulfilledRaw?: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null,
    onRejectedRaw?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | undefined | null
  ): Promise<TResult1 | TResult2> {
    const onFulfilled: OnFulfilled<T, TResult1> = onFulfilledRaw || returnInput as any
                Severity: Minor
                Found in src/observable-promise.ts - About 1 hr to fix

                  Function initTinyWorker has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
                  Open

                  function initTinyWorker(): ImplementationExport {
  const TinyWorker = require("tiny-worker")

  let allWorkers: Array<typeof TinyWorker> = []
                  Severity: Minor
                  Found in src/master/implementation.node.ts - About 1 hr to fix

                  Cognitive Complexity

                  Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                  A method's cognitive complexity is based on a few simple rules:

                  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                  • Code is considered more complex for each "break in the linear flow of the code"
                  • Code is considered more complex when "flow breaking structures are nested"

                  Further reading

                  Similar blocks of code found in 2 locations. Consider refactoring.
                  Open

                    stats = await runWebpack({
    ...browserConfig,
    entry: require.resolve("./app-with-inlined-worker"),
    output: {
      ...serverConfig.output,
                  Severity: Major
                  Found in test-tooling/webpack/webpack.test.ts and 1 other location - About 1 hr to fix
                  test-tooling/webpack/webpack.test.ts on lines 74..81

                  Duplicated Code

                  Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                  Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                  When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                  Tuning

                  This issue has a mass of 59.

                  We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                  The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                  If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                  See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                  Refactorings

                  Further Reading

                  Similar blocks of code found in 2 locations. Consider refactoring.
                  Open

                    stats = await runWebpack({
    ...serverConfig,
    entry: require.resolve("./app-with-inlined-worker"),
    output: {
      ...serverConfig.output,
                  Severity: Major
                  Found in test-tooling/webpack/webpack.test.ts and 1 other location - About 1 hr to fix
                  test-tooling/webpack/webpack.test.ts on lines 63..70

                  Duplicated Code

                  Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                  Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                  When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                  Tuning

                  This issue has a mass of 59.

                  We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                  The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                  If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                  See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                  Refactorings

                  Further Reading

                  Severity
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                  Status
                  Source
                  Language