Method constructor

src/expression/node/AssignmentNode.js:69–88

* @constructor AssignmentNode * @extends {Node} * * Define a symbol, like `a=3.2`, update a property like `a.b=3.2`, or * replace a subset of a matrix like `A[2,2]=42`. * * Syntax: * * new AssignmentNode(symbol, value) * new AssignmentNode(object,

(object, index, value)

     *     The value to be assigned
     */
    constructor (object, index, value) {
      super()
      this.object = object
      this.index = value ? index : null
      this.value = value || index

      // validate input
      if (!isSymbolNode(object) && !isAccessorNode(object)) {
        throw new TypeError('SymbolNode or AccessorNode expected as "object"')
      }
      if (isSymbolNode(object) && object.name === 'end') {
        throw new Error('Cannot assign to symbol "end"')
      }
      if (this.index && !isIndexNode(this.index)) { // index is optional
        throw new TypeError('IndexNode expected as "index"')
      }
      if (!isNode(this.value)) {
        throw new TypeError('Node expected as "value"')
      }
    }

    // class name for typing purposes:
    static name = name