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packages/babel-helper-builder-react-jsx-experimental/src/index.js

Summary

Maintainability
F
2 wks
Test Coverage

Function helper has a Cognitive Complexity of 244 (exceeds 5 allowed). Consider refactoring.
Open

export function helper(babel, options) {
  const FILE_NAME_VAR = "_jsxFileName";

  const JSX_SOURCE_ANNOTATION_REGEX = /\*?\s*@jsxImportSource\s+([^\s]+)/;
  const JSX_RUNTIME_ANNOTATION_REGEX = /\*?\s*@jsxRuntime\s+([^\s]+)/;
Severity: Minor
Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 5 days 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 helper has 662 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export function helper(babel, options) {
  const FILE_NAME_VAR = "_jsxFileName";

  const JSX_SOURCE_ANNOTATION_REGEX = /\*?\s*@jsxImportSource\s+([^\s]+)/;
  const JSX_RUNTIME_ANNOTATION_REGEX = /\*?\s*@jsxRuntime\s+([^\s]+)/;
Severity: Major
Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 3 days to fix

    File index.js has 673 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    import * as t from "@babel/types";
import { addNamed, addNamespace, isModule } from "@babel/helper-module-imports";
import annotateAsPure from "@babel/helper-annotate-as-pure";

const DEFAULT = {
    Severity: Major
    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 1 day to fix

      Function enter has 117 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

            enter(path, state) {
        if (hasJSX(path)) {
          const { file } = state;
          let runtime = RUNTIME_DEFAULT;
      Severity: Major
      Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 4 hrs to fix

        Function buildJSXElementCall has 74 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          function buildJSXElementCall(path, file) {
    const openingPath = path.get("openingElement");
    openingPath.parent.children = t.react.buildChildren(openingPath.parent);

    const tagExpr = convertJSXIdentifier(
        Severity: Major
        Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 2 hrs to fix

          Function buildJSXFragmentCall has 46 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

            function buildJSXFragmentCall(path, file) {
    const openingPath = path.get("openingElement");
    openingPath.parent.children = t.react.buildChildren(openingPath.parent);

    const args = [];
          Severity: Minor
          Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 1 hr to fix

            Function addAutoImports has 34 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

              function addAutoImports(path, state) {
    const imports = getImportNames(path, state);
    if (isModule(path)) {
      // import {jsx} from "react";
      // import {createElement} from "react";
            Severity: Minor
            Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 1 hr to fix

              Function buildCreateElementCall has 34 lines of code (exceeds 25 allowed). Consider refactoring.
              Open

                function buildCreateElementCall(path, file) {
    const openingPath = path.get("openingElement");
    openingPath.parent.children = t.react.buildChildren(openingPath.parent);

    const tagExpr = convertJSXIdentifier(
              Severity: Minor
              Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 1 hr to fix

                Function buildCreateElementFragmentCall has 26 lines of code (exceeds 25 allowed). Consider refactoring.
                Open

                  function buildCreateElementFragmentCall(path, file) {
    if (options.filter && !options.filter(path.node, file)) {
      return;
    }
                Severity: Minor
                Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 1 hr to fix

                  Avoid too many return statements within this function.
                  Open

                      return node;
                  Severity: Major
                  Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js - About 30 mins to fix

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

                      function convertJSXIdentifier(node, parent) {
    if (t.isJSXIdentifier(node)) {
      if (node.name === "this" && t.isReferenced(node, parent)) {
        return t.thisExpression();
      } else if (t.isValidIdentifier(node.name, false)) {
                    Severity: Major
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 1 day to fix
                    packages/babel-helper-builder-react-jsx/src/index.js on lines 55..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 221.

                    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

                      function makeTrace(fileNameIdentifier, lineNumber, column0Based) {
    const fileLineLiteral =
      lineNumber != null ? t.numericLiteral(lineNumber) : t.nullLiteral();

    const fileColumnLiteral =
                    Severity: Major
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 6 hrs to fix
                    packages/babel-plugin-transform-react-jsx-source/src/index.js on lines 24..48

                    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 166.

                    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 (t.isJSXNamespacedName(node.name)) {
      node.name = t.stringLiteral(
        node.name.namespace.name + ":" + node.name.name.name,
      );
    } else if (t.isValidIdentifier(node.name.name, false)) {
                    Severity: Major
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 5 hrs to fix
                    packages/babel-helper-builder-react-jsx/src/index.js on lines 102..110

                    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 141.

                    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 {
    importSource: IMPORT_SOURCE_DEFAULT = DEFAULT.importSource,
    runtime: RUNTIME_DEFAULT = DEFAULT.runtime,
    pragma: PRAGMA_DEFAULT = DEFAULT.pragma,
    pragmaFrag: PRAGMA_FRAG_DEFAULT = DEFAULT.pragmaFrag,
                    Severity: Major
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 1 hr to fix
                    packages/babel-template/src/options.js on lines 57..62

                    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 60.

                    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 () => {
      return id
        .split(".")
        .map(name => t.identifier(name))
        .reduce((object, property) => t.memberExpression(object, property));
                    Severity: Major
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 1 hr to fix
                    packages/babel-plugin-transform-react-jsx/src/transform-classic.js on lines 24..29

                    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 59.

                    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

                        JSXAttribute(path) {
      if (t.isJSXElement(path.node.value)) {
        path.node.value = t.jsxExpressionContainer(path.node.value);
      }
    },
                    Severity: Major
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 1 hr to fix
                    packages/babel-plugin-transform-react-jsx/src/transform-classic.js on lines 95..99

                    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

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

                        const call =
      state.call ||
      t.callExpression(
        path.node.children.length > 1 ? state.jsxStaticCallee : state.jsxCallee,
        args,
                    Severity: Minor
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 55 mins to fix
                    packages/babel-helper-builder-react-jsx-experimental/src/index.js on lines 702..707

                    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 54.

                    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

                        const call =
      state.call ||
      t.callExpression(
        path.node.children.length > 1 ? state.jsxStaticCallee : state.jsxCallee,
        args,
                    Severity: Minor
                    Found in packages/babel-helper-builder-react-jsx-experimental/src/index.js and 1 other location - About 55 mins to fix
                    packages/babel-helper-builder-react-jsx-experimental/src/index.js on lines 618..623

                    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 54.

                    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

                    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

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