code-path-analyzer.js — react Source File

Source Code

'use strict';

/* eslint-disable react-internal/no-primitive-constructors */

//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------

// eslint-disable-next-line
const assert = require('./assert');
// eslint-disable-next-line
const CodePath = require('./code-path');
// eslint-disable-next-line
const CodePathSegment = require('./code-path-segment');
// eslint-disable-next-line
const IdGenerator = require('./id-generator');

const breakableTypePattern =
  /^(?:(?:Do)?While|For(?:In|Of)?|Switch)Statement$/u;

//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------

/**
 * Checks whether or not a given node is a `case` node (not `default` node).
 * @param {ASTNode} node A `SwitchCase` node to check.
 * @returns {boolean} `true` if the node is a `case` node (not `default` node).
 */
function isCaseNode(node) {
  return Boolean(node.test);
}

/**
 * Checks if a given node appears as the value of a PropertyDefinition node.
 * @param {ASTNode} node THe node to check.
 * @returns {boolean} `true` if the node is a PropertyDefinition value,
 *      false if not.
 */
function isPropertyDefinitionValue(node) {
  const parent = node.parent;

  return (
    parent && parent.type === 'PropertyDefinition' && parent.value === node
  );
}

/**
 * Checks whether the given logical operator is taken into account for the code
 * path analysis.
 * @param {string} operator The operator found in the LogicalExpression node
 * @returns {boolean} `true` if the operator is "&&" or "||" or "??"
 */
function isHandledLogicalOperator(operator) {
  return operator === '&&' || operator === '||' || operator === '??';
}

/**
 * Checks whether the given assignment operator is a logical assignment operator.
 * Logical assignments are taken into account for the code path analysis
// ... (743 more lines)