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packages/babel-generator/src/generators/modules.js

Summary

Maintainability
D
2 days
Test Coverage

Function ExportDeclaration has a Cognitive Complexity of 25 (exceeds 5 allowed). Consider refactoring.
Open

function ExportDeclaration(node: Object) {
  if (node.declaration) {
    const declar = node.declaration;
    this.print(declar, node);
    if (!t.isStatement(declar)) this.semicolon();
Severity: Minor
Found in packages/babel-generator/src/generators/modules.js - About 3 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 ImportDeclaration has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
Open

export function ImportDeclaration(node: Object) {
  this.word("import");
  this.space();

  if (node.importKind === "type" || node.importKind === "typeof") {
Severity: Minor
Found in packages/babel-generator/src/generators/modules.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 ExportDeclaration has 44 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function ExportDeclaration(node: Object) {
  if (node.declaration) {
    const declar = node.declaration;
    this.print(declar, node);
    if (!t.isStatement(declar)) this.semicolon();
Severity: Minor
Found in packages/babel-generator/src/generators/modules.js - About 1 hr to fix

    Function ImportDeclaration has 42 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    export function ImportDeclaration(node: Object) {
  this.word("import");
  this.space();

  if (node.importKind === "type" || node.importKind === "typeof") {
    Severity: Minor
    Found in packages/babel-generator/src/generators/modules.js - About 1 hr to fix

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

        if (node.exported && node.local.name !== node.exported.name) {
    this.space();
    this.word("as");
    this.space();
    this.print(node.exported, node);
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 2 hrs to fix
      packages/babel-generator/src/generators/modules.js on lines 10..15

      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 82.

      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 (node.local && node.local.name !== node.imported.name) {
    this.space();
    this.word("as");
    this.space();
    this.print(node.local, node);
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 2 hrs to fix
      packages/babel-generator/src/generators/modules.js on lines 28..33

      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 82.

      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

      export function ImportNamespaceSpecifier(node: Object) {
  this.token("*");
  this.space();
  this.word("as");
  this.space();
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 2 hrs to fix
      packages/babel-generator/src/generators/modules.js on lines 36..42

      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 2 locations. Consider refactoring.
      Open

      export function ExportNamespaceSpecifier(node: Object) {
  this.token("*");
  this.space();
  this.word("as");
  this.space();
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 2 hrs to fix
      packages/babel-generator/src/generators/modules.js on lines 200..206

      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 11 locations. Consider refactoring.
      Open

          if (node.source) {
      this.space();
      this.word("from");
      this.space();
      this.print(node.source, node);
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 10 other locations - About 1 hr to fix
      packages/babel-generator/src/generators/classes.js on lines 41..46
      packages/babel-generator/src/generators/classes.js on lines 94..99
      packages/babel-generator/src/generators/classes.js on lines 110..115
      packages/babel-generator/src/generators/flow.js on lines 237..242
      packages/babel-generator/src/generators/flow.js on lines 445..450
      packages/babel-generator/src/generators/flow.js on lines 465..470
      packages/babel-generator/src/generators/statements.js on lines 163..168
      packages/babel-generator/src/generators/statements.js on lines 295..300
      packages/babel-generator/src/generators/typescript.js on lines 19..24
      packages/babel-generator/src/generators/typescript.js on lines 26..31

      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 58.

      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 3 locations. Consider refactoring.
      Open

        if (node.importKind === "type" || node.importKind === "typeof") {
    this.word(node.importKind);
    this.space();
  }
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 2 other locations - About 50 mins to fix
      packages/babel-generator/src/generators/flow.js on lines 578..581
      packages/babel-generator/src/generators/modules.js on lines 144..147

      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 52.

      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 3 locations. Consider refactoring.
      Open

        if (node.importKind === "type" || node.importKind === "typeof") {
    this.word(node.importKind);
    this.space();
  }
      Severity: Major
      Found in packages/babel-generator/src/generators/modules.js and 2 other locations - About 50 mins to fix
      packages/babel-generator/src/generators/flow.js on lines 578..581
      packages/babel-generator/src/generators/modules.js on lines 4..7

      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 52.

      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 (node.declaration) {
    const declar = node.declaration;
    this.print(declar, node);
    if (!t.isStatement(declar)) this.semicolon();
  } else {
      Severity: Minor
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 50 mins to fix
      packages/babel-generator/src/generators/flow.js on lines 224..245

      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 51.

      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 (
    this.format.decoratorsBeforeExport &&
    t.isClassDeclaration(node.declaration)
  ) {
    this.printJoin(node.declaration.decorators, node);
      Severity: Minor
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 50 mins to fix
      packages/babel-generator/src/generators/modules.js on lines 73..78

      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 51.

      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 (
    this.format.decoratorsBeforeExport &&
    t.isClassDeclaration(node.declaration)
  ) {
    this.printJoin(node.declaration.decorators, node);
      Severity: Minor
      Found in packages/babel-generator/src/generators/modules.js and 1 other location - About 50 mins to fix
      packages/babel-generator/src/generators/modules.js on lines 60..65

      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 51.

      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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