Function parseStart

src/expression/parse.js:614–635

* Start of the parse levels below, in order of precedence * @return {Node} node * @private

(expression, extraNodes)

   * @private
   */
  function parseStart (expression, extraNodes) {
    const state = initialState()
    Object.assign(state, { expression, extraNodes })
    getToken(state)

    const node = parseBlock(state)

    // check for garbage at the end of the expression
    // an expression ends with a empty character '' and tokenType DELIMITER
    if (state.token !== '') {
      if (state.tokenType === TOKENTYPE.DELIMITER) {
        // user entered a not existing operator like "//"

        // TODO: give hints for aliases, for example with "<>" give as hint " did you mean !== ?"
        throw createError(state, 'Unexpected operator ' + state.token)
      } else {
        throw createSyntaxError(state, 'Unexpected part "' + state.token + '"')
      }
    }

    return node
  }

  /**
   * Parse a block with expressions. Expressions can be separated by a newline