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apps/meteor/client/lib/minimongo/query.ts

Summary

Maintainability
D
2 days
Test Coverage

Function compileDocumentSelector has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
Open

export const compileDocumentSelector = <T>(docSelector: Query<T> | FieldExpression<T>['$where'][]): ((doc: T) => boolean) => {
    const perKeySelectors = Object.entries(docSelector).map(([key, subSelector]) => {
        if (subSelector === undefined) {
            return (): boolean => true;
        }
Severity: Minor
Found in apps/meteor/client/lib/minimongo/query.ts - 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

Avoid too many return statements within this function.
Open

        return compileValueOperatorsSelector(valueSelector);
Severity: Major
Found in apps/meteor/client/lib/minimongo/query.ts - About 30 mins to fix

    Avoid too many return statements within this function.
    Open

        return (value: T): boolean => flatSome(value, (x) => equals(valueSelector, x as unknown as object));
    Severity: Major
    Found in apps/meteor/client/lib/minimongo/query.ts - About 30 mins to fix

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

      const $or = <T>(subSelector: Query<T>[]): ((doc: T) => boolean) => {
    const subSelectorFunctions = subSelector.map(compileDocumentSelector);
    return (doc: T): boolean => subSelectorFunctions.some((f) => f(doc));
};
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 1 other location - About 3 hrs to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 166..169

      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 97.

      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

      const $and = <T>(subSelector: Query<T>[]): ((doc: T) => boolean) => {
    const subSelectorFunctions = subSelector.map(compileDocumentSelector);
    return (doc: T): boolean => subSelectorFunctions.every((f) => f(doc));
};
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 1 other location - About 3 hrs to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 171..174

      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 97.

      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 4 locations. Consider refactoring.
      Open

      const $lt =
    <T>(operand: T, _options: undefined): ((value: T) => boolean) =>
    (value: T): boolean =>
        flatSome(value, (x) => compareBSONValues(x, operand) < 0);
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 3 other locations - About 2 hrs to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 55..58
      apps/meteor/client/lib/minimongo/query.ts on lines 60..63
      apps/meteor/client/lib/minimongo/query.ts on lines 65..68

      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 76.

      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 4 locations. Consider refactoring.
      Open

      const $gte =
    <T>(operand: T, _options: undefined): ((value: T) => boolean) =>
    (value: T): boolean =>
        flatSome(value, (x) => compareBSONValues(x, operand) >= 0);
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 3 other locations - About 2 hrs to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 50..53
      apps/meteor/client/lib/minimongo/query.ts on lines 55..58
      apps/meteor/client/lib/minimongo/query.ts on lines 60..63

      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 76.

      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 4 locations. Consider refactoring.
      Open

      const $lte =
    <T>(operand: T, _options: undefined): ((value: T) => boolean) =>
    (value: T): boolean =>
        flatSome(value, (x) => compareBSONValues(x, operand) <= 0);
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 3 other locations - About 2 hrs to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 50..53
      apps/meteor/client/lib/minimongo/query.ts on lines 60..63
      apps/meteor/client/lib/minimongo/query.ts on lines 65..68

      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 76.

      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 4 locations. Consider refactoring.
      Open

      const $gt =
    <T>(operand: T, _options: undefined): ((value: T) => boolean) =>
    (value: T): boolean =>
        flatSome(value, (x) => compareBSONValues(x, operand) > 0);
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 3 other locations - About 2 hrs to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 50..53
      apps/meteor/client/lib/minimongo/query.ts on lines 55..58
      apps/meteor/client/lib/minimongo/query.ts on lines 65..68

      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 76.

      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

          (value: T): boolean => {
        if (value === undefined) {
            return false;
        }
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 1 other location - About 1 hr to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 110..116

      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 55.

      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

          return (value: T): boolean => {
        if (value === undefined) {
            return false;
        }
      Severity: Major
      Found in apps/meteor/client/lib/minimongo/query.ts and 1 other location - About 1 hr to fix
      apps/meteor/client/lib/minimongo/query.ts on lines 212..218

      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 55.

      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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