Function fuzzyMatch

app/lib/code-to-blocks.js:4–32

(a, b)

const { javascriptGenerator } = require('blockly/javascript')

function fuzzyMatch (a, b) {
  if (a.type !== b.type) return false
  switch (a.type) {
    case 'Identifier':
      return a.name === b.name
    case 'CallExpression':
      if (!fuzzyMatch(a.callee, b.callee)) return false
      return true
    case 'MemberExpression':
      return fuzzyMatch(a.object, b.object) && fuzzyMatch(a.property, b.property) && a.computed === b.computed
    case 'NumericLiteral':
    case 'StringLiteral':
    case 'BooleanLiteral':
      return true
    case 'ArrayExpression':
      return (a.elements.length === 0) === (b.elements.length === 0)
    case 'BreakStatement':
    case 'ContinueStatement':
      return true
    case 'WhileStatement':
    case 'ForStatement':
    case 'ConditionalExpression':
      return true
    case 'IfStatement':
      return true
    default:
      throw new Error(`Don't know how to fuzzy compare ${a.type}`)
  }
}

function findOne (array, pred, why = 'Expected exactly one match') {
  const matches = array.filter(pred)