sergeysova/es2-result-option

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fantasy/index.js

Summary

Maintainability
D
2 days
Test Coverage

File index.js has 335 lines of code (exceeds 250 allowed). Consider refactoring.
Open

/* eslint-disable id-match, no-use-before-define */

const ø = Symbol('ø')


Severity: Minor
Found in fantasy/index.js - About 4 hrs to fix

    Err has 27 functions (exceeds 20 allowed). Consider refactoring.
    Open

    class Err {
      static of(value) {
        return new Err(value)
      }
    
    
    Severity: Minor
    Found in fantasy/index.js - About 3 hrs to fix

      Ok has 27 functions (exceeds 20 allowed). Consider refactoring.
      Open

      class Ok {
        static of(value) {
          return new Ok(value)
        }
      
      
      Severity: Minor
      Found in fantasy/index.js - About 3 hrs to fix

        Some has 23 functions (exceeds 20 allowed). Consider refactoring.
        Open

        class Some {
          constructor(value) {
            this[ø] = value
          }
        
        
        Severity: Minor
        Found in fantasy/index.js - About 2 hrs to fix

          None has 22 functions (exceeds 20 allowed). Consider refactoring.
          Open

          class None {
            static of(/* value */) {
              return new None()
            }
          
          
          Severity: Minor
          Found in fantasy/index.js - About 2 hrs to fix

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

            function result$encase(ƒ) {
              return function encased(...args) {
                try {
                  return Ok.of(ƒ.apply(this, args))
                }
            Severity: Major
            Found in fantasy/index.js and 1 other location - About 1 hr to fix
            index.js on lines 525..534

            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 67.

            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

            function option$encase(ƒ) {
              return function encased(...args) {
                try {
                  return Some.of(ƒ.apply(this, args))
                }
            Severity: Major
            Found in fantasy/index.js and 1 other location - About 1 hr to fix
            index.js on lines 249..258

            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 66.

            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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