Function mapTransform

src/expression/transform/map.transform.js:20–47

(args, math, scope)

  const transformCallback = createTransformCallback({ typed })

  function mapTransform (args, math, scope) {
    if (args.length === 0) {
      return map()
    }

    if (args.length === 1) {
      return map(args[0])
    }
    const N = args.length - 1
    let X = args.slice(0, N)
    let callback = args[N]
    X = X.map(arg => _compileAndEvaluate(arg, scope))

    if (callback) {
      if (isSymbolNode(callback) || isFunctionAssignmentNode(callback)) {
        // a function pointer, like filter([3, -2, 5], myTestFunction)
        callback = _compileAndEvaluate(callback, scope)
      } else {
        // an expression like filter([3, -2, 5], x > 0)
        callback = compileInlineExpression(callback, math, scope)
      }
    }
    return map(...X, transformCallback(callback, N))

    function _compileAndEvaluate (arg, scope) {
      return arg.compile().evaluate(scope)
    }
  }
  mapTransform.rawArgs = true

  return mapTransform