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lts/lib/internal/modules/esm/module_job.js

Summary

Maintainability
D
2 days
Test Coverage

Function _instantiate has 50 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  async _instantiate() {
    const jobsInGraph = new SafeSet();

    const addJobsToDependencyGraph = async (moduleJob) => {
      if (jobsInGraph.has(moduleJob)) {
Severity: Minor
Found in lts/lib/internal/modules/esm/module_job.js - About 2 hrs to fix

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

      async _instantiate() {
    const jobsInGraph = new SafeSet();

    const addJobsToDependencyGraph = async (moduleJob) => {
      if (jobsInGraph.has(moduleJob)) {
    Severity: Minor
    Found in lts/lib/internal/modules/esm/module_job.js - 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

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

        try {
      if (!hasPausedEntry && this.inspectBrk) {
        hasPausedEntry = true;
        const initWrapper = internalBinding('inspector').callAndPauseOnStart;
        initWrapper(this.module.instantiate, this.module);
    Severity: Major
    Found in lts/lib/internal/modules/esm/module_job.js and 1 other location - About 2 days to fix
    current/lib/internal/modules/esm/module_job.js on lines 92..127

    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 376.

    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 addJobsToDependencyGraph = async (moduleJob) => {
      if (jobsInGraph.has(moduleJob)) {
        return;
      }
      jobsInGraph.add(moduleJob);
    Severity: Major
    Found in lts/lib/internal/modules/esm/module_job.js and 1 other location - About 1 hr to fix
    current/lib/internal/modules/esm/module_job.js on lines 82..89

    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 68.

    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 4 locations. Consider refactoring.
    Open

    const {
  ArrayPrototypeJoin,
  ObjectSetPrototypeOf,
  PromiseAll,
  SafeSet,
    Severity: Major
    Found in lts/lib/internal/modules/esm/module_job.js and 3 other locations - About 55 mins to fix
    current/lib/internal/main/worker_thread.js on lines 98..108
    current/lib/internal/modules/esm/module_job.js on lines 3..13
    lts/lib/internal/main/worker_thread.js on lines 96..106

    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 53.

    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

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