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

export function buildNamespaceInitStatements(
  metadata: ModuleMetadata,
  sourceMetadata: SourceModuleMetadata,
  loose: boolean = false,
) {
Severity: Minor
Found in packages/babel-helper-module-transforms/src/index.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 removeProperties has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export default function removeProperties(
  node: Object,
  opts?: Object = {},
): void {
  const map = opts.preserveComments ? CLEAR_KEYS : CLEAR_KEYS_PLUS_COMMENTS;
Severity: Minor
Found in packages/babel-types/src/modifications/removeProperties.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 buildCodeFrameError has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  buildCodeFrameError(
    node: ?NodeLocation,
    msg: string,
    Error: typeof Error = SyntaxError,
  ): Error {
Severity: Minor
Found in packages/babel-core/src/transformation/file/file.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 makeAPI has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export default function makeAPI(
  cache: CacheConfigurator<{ envName: string, caller: CallerMetadata | void }>,
): PluginAPI {
  const env: any = value =>
    cache.using(data => {
Severity: Minor
Found in packages/babel-core/src/config/helpers/config-api.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 print has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  print(node, parent) {
    if (!node) return;

    const oldConcise = this.format.concise;
    if (node._compact) {
Severity: Minor
Found in packages/babel-generator/src/printer.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 makeCachedFunction has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

function makeCachedFunction<ArgT, ResultT, SideChannel, Cache: *>(
  CallCache: Class<Cache>,
  handler: (ArgT, CacheConfigurator<SideChannel>) => Handler<ResultT> | ResultT,
): (ArgT, SideChannel) => Handler<ResultT> {
  const callCacheSync = new CallCache();
Severity: Minor
Found in packages/babel-core/src/config/caching.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 loadDescriptor has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

const loadDescriptor = makeWeakCache(function* (
  { value, options, dirname, alias }: UnloadedDescriptor,
  cache: CacheConfigurator<SimpleContext>,
): Handler<LoadedDescriptor> {
  // Disabled presets should already have been filtered out
Severity: Minor
Found in packages/babel-core/src/config/full.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 push has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  push(opts: {
    id: Object,
    init: ?Object,
    unique: ?boolean,
    _blockHoist: ?number,
Severity: Minor
Found in packages/babel-traverse/src/scope/index.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 bindifyDecorators has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export default function bindifyDecorators(
  decorators: Array<NodePath>,
): Array<NodePath> {
  for (const decoratorPath of decorators) {
    const decorator = decoratorPath.node;
Severity: Minor
Found in packages/babel-helper-bindify-decorators/src/index.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 ensureBlock has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export function ensureBlock() {
  const body = this.get("body");
  const bodyNode = body.node;

  if (Array.isArray(body)) {
Severity: Minor
Found in packages/babel-traverse/src/path/conversion.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 default has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export default function (node: Object) {
  if (!this.isReferenced()) return;

  // check if a binding exists of this value and if so then return a union type of all
  // possible types that the binding could be
Severity: Minor
Found in packages/babel-traverse/src/path/inference/inferer-reference.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 couldBeBaseType has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export function couldBeBaseType(name: string): boolean {
  const type = this.getTypeAnnotation();
  if (t.isAnyTypeAnnotation(type)) return true;

  if (t.isUnionTypeAnnotation(type)) {
Severity: Minor
Found in packages/babel-traverse/src/path/inference/index.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 getStatementParent has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

export function getStatementParent(): NodePath {
  let path = this;

  do {
    if (
Severity: Minor
Found in packages/babel-traverse/src/path/ancestry.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 get has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  static get({ hub, parentPath, parent, container, listKey, key }): NodePath {
    if (!hub && parentPath) {
      hub = parentPath.hub;
    }
Severity: Minor
Found in packages/babel-traverse/src/path/index.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

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

  if (typeof range === "number") {
    if (!Number.isInteger(range)) {
      throw new Error("Expected string or integer value.");
    }
    range = `^${range}.0.0-0`;
Severity: Minor
Found in packages/babel-core/src/config/helpers/config-api.js and 1 other location - About 55 mins to fix
packages/babel-helper-plugin-utils/src/index.js on lines 48..53

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 53.

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

  if (typeof range === "number") {
    if (!Number.isInteger(range)) {
      throw new Error("Expected string or integer value.");
    }
    range = `^${range}.0.0-0`;
Severity: Minor
Found in packages/babel-helper-plugin-utils/src/index.js and 1 other location - About 55 mins to fix
packages/babel-core/src/config/helpers/config-api.js on lines 63..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 53.

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 3 locations. Consider refactoring.
Open

    if (t.isIdentifier(tagExpr)) {
      tagName = tagExpr.name;
    } else if (t.isLiteral(tagExpr)) {
      tagName = tagExpr.value;
    }
Severity: Major
Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 2 other locations - About 55 mins to fix
packages/babel-helper-builder-react-jsx-experimental/src/index.js on lines 766..770
packages/babel-helper-builder-react-jsx/src/index.js on lines 128..132

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 53.

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 3 locations. Consider refactoring.
Open

    if (t.isIdentifier(tagExpr)) {
      tagName = tagExpr.name;
    } else if (t.isLiteral(tagExpr)) {
      tagName = tagExpr.value;
    }
Severity: Major
Found in packages/babel-helper-builder-react-jsx/src/index.js and 2 other locations - About 55 mins to fix
packages/babel-helper-builder-react-jsx-experimental/src/index.js on lines 542..546
packages/babel-helper-builder-react-jsx-experimental/src/index.js on lines 766..770

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 53.

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 3 locations. Consider refactoring.
Open

    if (t.isIdentifier(tagExpr)) {
      tagName = tagExpr.name;
    } else if (t.isLiteral(tagExpr)) {
      tagName = tagExpr.value;
    }
Severity: Major
Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 2 other locations - About 55 mins to fix
packages/babel-helper-builder-react-jsx-experimental/src/index.js on lines 542..546
packages/babel-helper-builder-react-jsx/src/index.js on lines 128..132

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 53.

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 ((methodOrProp: any).readonly && this.match(tt.parenL)) {
        this.raise(methodOrProp.start, TSErrors.ClassMethodHasReadonly);
      }
Severity: Minor
Found in packages/babel-parser/src/plugins/typescript/index.js and 1 other location - About 55 mins to fix
packages/babel-parser/src/plugins/typescript/index.js on lines 2051..2053

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 53.

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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