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Strilanc/Quirk

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src/circuit/CircuitStats.js

Summary

Maintainability
D
1 day
Test Coverage

Function _fromCircuitAtTime_noFallback has 44 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    static _fromCircuitAtTime_noFallback(circuitDefinition, time) {
        circuitDefinition = circuitDefinition.withMinimumWireCount();
        const numWires = circuitDefinition.numWires;

        // Advance state while collecting stats into textures.
Severity: Minor
Found in src/circuit/CircuitStats.js - About 1 hr to fix

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

        qubitDensityMatrix(colIndex, wireIndex) {
        if (wireIndex < 0) {
            throw new DetailedError("Bad wireIndex", {wireIndex, colIndex});
        }
    Severity: Minor
    Found in src/circuit/CircuitStats.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 decohereMeasuredBitsInDensityMatrix has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

        static decohereMeasuredBitsInDensityMatrix(densityMatrix, isMeasuredMask) {
        if (isMeasuredMask === 0) {
            return densityMatrix;
        }
    Severity: Minor
    Found in src/circuit/CircuitStats.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

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

        static decohereMeasuredBitsInDensityMatrix(densityMatrix, isMeasuredMask) {
        if (isMeasuredMask === 0) {
            return densityMatrix;
        }
    Severity: Major
    Found in src/circuit/CircuitStats.js and 1 other location - About 6 hrs to fix
    src/gates/DensityMatrixDisplay.js on lines 107..124

    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 169.

    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

        constructor(circuitDefinition,
                time,
                survivalRates,
                singleQubitDensities,
                finalState,
    Severity: Major
    Found in src/circuit/CircuitStats.js and 1 other location - About 2 hrs to fix
    src/circuit/GateCheckArgs.js on lines 29..47

    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 92.

    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

        withTime(time) {
        return new CircuitStats(
            this.circuitDefinition,
            time,
            this._survivalRates,
    Severity: Minor
    Found in src/circuit/CircuitStats.js and 1 other location - About 30 mins to fix
    src/ui/DisplayedToolbox.js on lines 182..190

    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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