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scripts/build/ReactSelection.js

Summary

Maintainability
F
1 wk
Test Coverage

File ReactSelection.js has 329 lines of code (exceeds 250 allowed). Consider refactoring.
Open

import { options, Fragment } from "../src/util";
import { Children } from "../src/Children";
import * as eventSystem from "../src/event";
import { PropTypes } from "../src/PropTypes";
import { Component } from "../src/Component";
Severity: Minor
Found in scripts/build/ReactSelection.js - About 3 hrs to fix

    Function getModernOffsets has 43 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    function getModernOffsets(node) {
    var selection = window.getSelection && window.getSelection();

    if (!selection || selection.rangeCount === 0) {
        return null;
    Severity: Minor
    Found in scripts/build/ReactSelection.js - About 1 hr to fix

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

      function setModernOffsets(node, offsets) {
    if (!window.getSelection) {
        return;
    }
      Severity: Minor
      Found in scripts/build/ReactSelection.js - About 1 hr to fix

        Function setModernOffsets has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
        Open

        function setModernOffsets(node, offsets) {
    if (!window.getSelection) {
        return;
    }
        Severity: Minor
        Found in scripts/build/ReactSelection.js - About 45 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 getModernOffsets has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
        Open

        function getModernOffsets(node) {
    var selection = window.getSelection && window.getSelection();

    if (!selection || selection.rangeCount === 0) {
        return null;
        Severity: Minor
        Found in scripts/build/ReactSelection.js - About 35 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 getSelection has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
        Open

            getSelection: function (input) {
        var selection;

        if ("selectionStart" in input) {
            // Modern browser with input or textarea.
        Severity: Minor
        Found in scripts/build/ReactSelection.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 getNodeForCharacterOffset has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
        Open

        function getNodeForCharacterOffset(root, offset) {
    var node = getLeafNode(root);
    var nodeStart = 0;
    var nodeEnd = 0;
    while (node) {
        Severity: Minor
        Found in scripts/build/ReactSelection.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

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

        var ReactInputSelection = {
    hasSelectionCapabilities: function (elem) {
        var nodeName = getNodeTag(elem || {});
        return nodeName && (nodeName === "input" && elem.type === "text" || nodeName === "textarea" || elem.contentEditable === "true");
    },
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 3 days to fix
        lib/ReactInputSelection.js on lines 67..145

        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 662.

        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

        function getModernOffsets(node) {
    var selection = window.getSelection && window.getSelection();

    if (!selection || selection.rangeCount === 0) {
        return null;
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 2 days to fix
        lib/ReactInputSelection.js on lines 171..239

        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 428.

        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

        function setModernOffsets(node, offsets) {
    if (!window.getSelection) {
        return;
    }
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 1 day to fix
        lib/ReactInputSelection.js on lines 283..319

        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 313.

        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

        function setIEOffsets(node, offsets) {
    var range = document
        .selection
        .createRange()
        .duplicate();
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 1 day to fix
        lib/ReactInputSelection.js on lines 245..269

        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 209.

        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 getNodeForCharacterOffset(root, offset) {
    var node = getLeafNode(root);
    var nodeStart = 0;
    var nodeEnd = 0;
    while (node) {
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 5 hrs to fix
        lib/ReactInputSelection.js on lines 347..365

        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 137.

        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

        function getIEOffsets(node) {
    var selection = document.selection;
    var selectedRange = selection.createRange();
    var selectedLength = selectedRange.text.length;
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 4 hrs to fix
        lib/ReactInputSelection.js on lines 151..165

        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 132.

        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

        function getActiveElement(doc) {
    doc = doc || (inBrowser
        ? document
        : undefined);
    if (typeof doc === "undefined") {
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 2 hrs to fix
        lib/ReactInputSelection.js on lines 48..60

        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 80.

        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 fixOptions(obj, name, oldFn, fn) {
    if (oldFn) {
        obj[name] = function (a) {
            fn(a);
            oldFn(a);
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 1 hr to fix
        lib/ReactInputSelection.js on lines 384..393

        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 65.

        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 getSelectionInterface() {
    var a = ReactInputSelection.getSelectionInformation();
    if (a.focusedElem && a.selectionRange) {
        priorSelectionInformation = a;
    } else {
        Severity: Major
        Found in scripts/build/ReactSelection.js and 1 other location - About 1 hr to fix
        lib/ReactInputSelection.js on lines 372..379

        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 60.

        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 3 locations. Consider refactoring.
        Open

        function getSiblingNode(node) {
    while (node) {
        if (node.nextSibling) {
            return node.nextSibling;
        }
        Severity: Minor
        Found in scripts/build/ReactSelection.js and 2 other locations - About 30 mins to fix
        lib/ReactInputSelection.js on lines 338..345
        packages/fiber/scheduleWork.js on lines 198..205

        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 45.

        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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