diff --git a/example/iot-gateway/node_modules/acorn/src/location.js b/example/iot-gateway/node_modules/acorn/src/location.js
+++ /dev/null
@@ -1,68 +0,0 @@
-import {Parser} from "./state"
-import {lineBreakG} from "./whitespace"
-import {deprecate} from "util"
-
-// These are used when `options.locations` is on, for the
-// `startLoc` and `endLoc` properties.
-
-export class Position {
- constructor(line, col) {
- this.line = line
- this.column = col
- }
-
- offset(n) {
- return new Position(this.line, this.column + n)
- }
-}
-
-export class SourceLocation {
- constructor(p, start, end) {
- this.start = start
- this.end = end
- if (p.sourceFile !== null) this.source = p.sourceFile
- }
-}
-
-// The `getLineInfo` function is mostly useful when the
-// `locations` option is off (for performance reasons) and you
-// want to find the line/column position for a given character
-// offset. `input` should be the code string that the offset refers
-// into.
-
-export function getLineInfo(input, offset) {
- for (let line = 1, cur = 0;;) {
- lineBreakG.lastIndex = cur
- let match = lineBreakG.exec(input)
- if (match && match.index < offset) {
- ++line
- cur = match.index + match[0].length
- } else {
- return new Position(line, offset - cur)
- }
- }
-}
-
-const pp = Parser.prototype
-
-// This function is used to raise exceptions on parse errors. It
-// takes an offset integer (into the current `input`) to indicate
-// the location of the error, attaches the position to the end
-// of the error message, and then raises a `SyntaxError` with that
-// message.
-
-pp.raise = function(pos, message) {
- let loc = getLineInfo(this.input, pos)
- message += " (" + loc.line + ":" + loc.column + ")"
- let err = new SyntaxError(message)
- err.pos = pos; err.loc = loc; err.raisedAt = this.pos
- throw err
-}
-
-pp.curPosition = function() {
- return new Position(this.curLine, this.pos - this.lineStart)
-}
-
-pp.markPosition = function() {
- return this.options.locations ? [this.start, this.startLoc] : this.start
-}