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kachkaev/humane-math

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src/core/calculator.js

Summary

Maintainability
D
2 days
Test Coverage

Function calculateValueOfTheNode has a Cognitive Complexity of 64 (exceeds 5 allowed). Consider refactoring.
Open

  calculateValueOfTheNode(treeNode, variables, symbols, calculateCacheMode) {

    //FIXME revise
    //// Do nothing if the value is already calculated or this node is a number (it has already got a value).
    // if ((treeNode.value !== null && !calculateCacheMode) || treeNode.type == TreeNodeType.NUMBER)
Severity: Minor
Found in src/core/calculator.js - About 1 day 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 calculateValueOfTheNode has 103 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  calculateValueOfTheNode(treeNode, variables, symbols, calculateCacheMode) {

    //FIXME revise
    //// Do nothing if the value is already calculated or this node is a number (it has already got a value).
    // if ((treeNode.value !== null && !calculateCacheMode) || treeNode.type == TreeNodeType.NUMBER)
Severity: Major
Found in src/core/calculator.js - About 4 hrs to fix

    Avoid deeply nested control flow statements.
    Open

                  if (e != this.COULD_NOT_CALCULATE_EXCEPTION) {
                throw e;
              }
    Severity: Major
    Found in src/core/calculator.js - About 45 mins to fix

      Avoid too many return statements within this function.
      Open

                return NaN;
      Severity: Major
      Found in src/core/calculator.js - About 30 mins to fix

        Avoid too many return statements within this function.
        Open

            return result;
        Severity: Major
        Found in src/core/calculator.js - About 30 mins to fix

          Function clearCachedValues has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
          Open

            clearCachedValues(treeNode) {
    if (treeNode instanceof Text) {
      treeNode = treeNode.tree.root;
    }
          Severity: Minor
          Found in src/core/calculator.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

              case TreeNodeType.TERM:
      result = subNodesValues[0];
      for (let i = 1; i < subNodesValuesCount; i++) {
        if (treeNode.subActions[i - 1].type == TokenType.MULTIPLY) {
          result *= subNodesValues[i];
          Severity: Major
          Found in src/core/calculator.js and 1 other location - About 3 hrs to fix
          src/core/calculator.js on lines 263..272

          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 106.

          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

              case TreeNodeType.EXPRESSION:
      result = subNodesValues[0];
      for (let i = 1; i < subNodesValuesCount; i++) {
        if (treeNode.subActions[i - 1].type == TokenType.ADD) {
          result += subNodesValues[i];
          Severity: Major
          Found in src/core/calculator.js and 1 other location - About 3 hrs to fix
          src/core/calculator.js on lines 276..285

          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 106.

          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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