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ckeditor/ckeditor5-utils

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src/emittermixin.js

Summary

Maintainability
D
1 day
Test Coverage

Function stopListening has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.
Open

    stopListening( emitter, event, callback ) {
        const emitters = this[ _listeningTo ];
        let emitterId = emitter && _getEmitterId( emitter );
        const emitterInfo = emitters && emitterId && emitters[ emitterId ];
        const eventCallbacks = emitterInfo && event && emitterInfo.callbacks[ event ];
Severity: Minor
Found in src/emittermixin.js - 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

File emittermixin.js has 266 lines of code (exceeds 250 allowed). Consider refactoring.
Open

/**
 * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
Severity: Minor
Found in src/emittermixin.js - About 2 hrs to fix

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

        fire( eventOrInfo, ...args ) {
        try {
            const eventInfo = eventOrInfo instanceof EventInfo ? eventOrInfo : new EventInfo( this, eventOrInfo );
            const event = eventInfo.name;
            let callbacks = getCallbacksForEvent( this, event );
    Severity: Minor
    Found in src/emittermixin.js - 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 listenTo has 39 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        listenTo( emitter, event, callback, options = {} ) {
        let emitterInfo, eventCallbacks;

        // _listeningTo contains a list of emitters that this object is listening to.
        // This list has the following format:
    Severity: Minor
    Found in src/emittermixin.js - About 1 hr to fix

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

          listenTo( emitter, event, callback, options = {} ) {
        let emitterInfo, eventCallbacks;

        // _listeningTo contains a list of emitters that this object is listening to.
        // This list has the following format:
      Severity: Minor
      Found in src/emittermixin.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

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

          fire( eventOrInfo, ...args ) {
        try {
            const eventInfo = eventOrInfo instanceof EventInfo ? eventOrInfo : new EventInfo( this, eventOrInfo );
            const event = eventInfo.name;
            let callbacks = getCallbacksForEvent( this, event );
      Severity: Minor
      Found in src/emittermixin.js - About 1 hr to fix

        Function stopListening has 28 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

            stopListening( emitter, event, callback ) {
        const emitters = this[ _listeningTo ];
        let emitterId = emitter && _getEmitterId( emitter );
        const emitterInfo = emitters && emitterId && emitters[ emitterId ];
        const eventCallbacks = emitterInfo && event && emitterInfo.callbacks[ event ];
        Severity: Minor
        Found in src/emittermixin.js - About 1 hr to fix

          Function createEventNamespace has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
          Open

          function createEventNamespace( source, eventName ) {
    const events = getEvents( source );

    // First, check if the event we want to add to the structure already exists.
    if ( events[ eventName ] ) {
          Severity: Minor
          Found in src/emittermixin.js - About 55 mins 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 removeCallback has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
          Open

          function removeCallback( emitter, event, callback ) {
    const lists = getCallbacksListsForNamespace( emitter, event );

    for ( const callbacks of lists ) {
        for ( let i = 0; i < callbacks.length; i++ ) {
          Severity: Minor
          Found in src/emittermixin.js - About 25 mins 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 stopDelegating has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
          Open

              stopDelegating( event, emitter ) {
        if ( !this._delegations ) {
            return;
        }
          Severity: Minor
          Found in src/emittermixin.js - About 25 mins 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

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