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deps/v8/tools/profviz/profviz.js

Summary

Maintainability
D
1 day
Test Coverage

Function UIWrapper has 65 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function UIWrapper() {
  var input_elements = ["range_start",
                        "range_end",
                        "distortion",
                        "start",
Severity: Major
Found in deps/v8/tools/profviz/profviz.js - About 2 hrs to fix

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

    function UIWrapper() {
  var input_elements = ["range_start",
                        "range_end",
                        "distortion",
                        "start",
    Severity: Minor
    Found in deps/v8/tools/profviz/profviz.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 plotWorker has 42 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    function plotWorker() {
  var worker = null;

  function initialize() {
    ui.freeze();
    Severity: Minor
    Found in deps/v8/tools/profviz/profviz.js - About 1 hr to fix

      Function run has 6 arguments (exceeds 4 allowed). Consider refactoring.
      Open

        this.run = function(filename,
                      resx, resy,
                      distortion,
                      range_start, range_end) {
      Severity: Minor
      Found in deps/v8/tools/profviz/profviz.js - About 45 mins to fix

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

          this.freeze = function() {
    this.plot.style.webkitFilter = "grayscale(1)";
    this.prof.style.color = "#bbb";
    for (var i in input_elements) {
      this[input_elements[i]].disabled = true;
        Severity: Major
        Found in deps/v8/tools/profviz/profviz.js and 1 other location - About 2 hrs to fix
        deps/v8/tools/profviz/profviz.js on lines 128..134

        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 86.

        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

          this.thaw = function() {
    this.plot.style.webkitFilter = "";
    this.prof.style.color = "#000";
    for (var i in input_elements) {
      this[input_elements[i]].disabled = false;
        Severity: Major
        Found in deps/v8/tools/profviz/profviz.js and 1 other location - About 2 hrs to fix
        deps/v8/tools/profviz/profviz.js on lines 120..126

        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 86.

        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

            if (this.toggledisplay.next_mode == "plot") {
      this.toggledisplay.next_mode = "prof";
      this.plot.style.display = "block";
      this.prof.style.display = "none";
      this.toggledisplay.innerHTML = "Show profile";
        Severity: Major
        Found in deps/v8/tools/profviz/profviz.js and 1 other location - About 1 hr to fix
        deps/v8/tools/profviz/profviz.js on lines 153..158

        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 71.

        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

            } else {
      this.toggledisplay.next_mode = "plot";
      this.plot.style.display = "none";
      this.prof.style.display = "block";
      this.toggledisplay.innerHTML = "Show plot";
        Severity: Major
        Found in deps/v8/tools/profviz/profviz.js and 1 other location - About 1 hr to fix
        deps/v8/tools/profviz/profviz.js on lines 148..153

        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 71.

        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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