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yannickcr/eslint-plugin-react

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lib/rules/display-name.js

Summary

Maintainability
D
2 days
Test Coverage

Function create has a Cognitive Complexity of 58 (exceeds 5 allowed). Consider refactoring.
Open

  create: Components.detect((context, components, utils) => {
    const config = context.options[0] || {};
    const ignoreTranspilerName = config.ignoreTranspilerName || false;
    const checkContextObjects = (config.checkContextObjects || false) && testReactVersion(context, '>= 16.3.0');
Severity: Minor
Found in lib/rules/display-name.js - About 1 day 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 create has 172 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  create: Components.detect((context, components, utils) => {
    const config = context.options[0] || {};
    const ignoreTranspilerName = config.ignoreTranspilerName || false;
    const checkContextObjects = (config.checkContextObjects || false) && testReactVersion(context, '>= 16.3.0');
Severity: Major
Found in lib/rules/display-name.js - About 6 hrs to fix

    Function hasTranspilerName has 41 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        function hasTranspilerName(node) {
      const namedObjectAssignment = (
        node.type === 'ObjectExpression'
        && node.parent
        && node.parent.parent
    Severity: Minor
    Found in lib/rules/display-name.js - About 1 hr to fix

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

            const namedClass = (
        (node.type === 'ClassDeclaration' || node.type === 'ClassExpression')
        && node.id
        && !!node.id.name
      );
      Severity: Minor
      Found in lib/rules/display-name.js and 1 other location - About 50 mins to fix
      lib/rules/display-name.js on lines 140..144

      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 51.

      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 namedFunctionDeclaration = (
        (node.type === 'FunctionDeclaration' || node.type === 'FunctionExpression')
        && node.id
        && !!node.id.name
      );
      Severity: Minor
      Found in lib/rules/display-name.js and 1 other location - About 50 mins to fix
      lib/rules/display-name.js on lines 134..138

      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 51.

      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

              node.type === 'ObjectExpression'
        && node.parent
        && node.parent.parent
        && node.parent.parent.type === 'AssignmentExpression'
      Severity: Minor
      Found in lib/rules/display-name.js and 1 other location - About 40 mins to fix
      lib/rules/display-name.js on lines 129..132

      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 49.

      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

              node.type === 'ObjectExpression'
        && node.parent
        && node.parent.parent
        && node.parent.parent.type === 'VariableDeclarator'
      Severity: Minor
      Found in lib/rules/display-name.js and 1 other location - About 40 mins to fix
      lib/rules/display-name.js on lines 118..121

      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 49.

      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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