my-idlers/node_modules/acorn-node/lib/static-class-features/index.js

/* Generated by `npm run build`, do not edit! */

"use strict"

var skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g

var acorn = require("acorn")
var tt = acorn.tokTypes

function maybeParseFieldValue(field) {
  if (this.eat(tt.eq)) {
    var oldInFieldValue = this._inStaticFieldValue
    this._inStaticFieldValue = true
    field.value = this.parseExpression()
    this._inStaticFieldValue = oldInFieldValue
  } else { field.value = null }
}

var privateClassElements = require("../private-class-elements")

module.exports = function(Parser) {
  var ExtendedParser = privateClassElements(Parser)

  return /*@__PURE__*/(function (ExtendedParser) {
    function anonymous () {
      ExtendedParser.apply(this, arguments);
    }

    if ( ExtendedParser ) anonymous.__proto__ = ExtendedParser;
    anonymous.prototype = Object.create( ExtendedParser && ExtendedParser.prototype );
    anonymous.prototype.constructor = anonymous;

    anonymous.prototype.parseClassElement = function parseClassElement (_constructorAllowsSuper) {
      var this$1 = this;

      if (this.eat(tt.semi)) { return null }

      var node = this.startNode()

      var tryContextual = function (k, noLineBreak) {
        if (typeof noLineBreak == "undefined") { noLineBreak = false }
        var start = this$1.start, startLoc = this$1.startLoc
        if (!this$1.eatContextual(k)) { return false }
        if (this$1.type !== tt.parenL && (!noLineBreak || !this$1.canInsertSemicolon())) { return true }
        if (node.key) { this$1.unexpected() }
        node.computed = false
        node.key = this$1.startNodeAt(start, startLoc)
        node.key.name = k
        this$1.finishNode(node.key, "Identifier")
        return false
      }

      node.static = tryContextual("static")
      if (!node.static) { return ExtendedParser.prototype.parseClassElement.apply(this, arguments) }

      var isGenerator = this.eat(tt.star)
      var isAsync = false
      if (!isGenerator) {
        // Special-case for `async`, since `parseClassMember` currently looks
        // for `(` to determine whether `async` is a method name
        if (this.options.ecmaVersion >= 8 && this.isContextual("async")) {
          skipWhiteSpace.lastIndex = this.pos
          var skip = skipWhiteSpace.exec(this.input)
          var next = this.input.charAt(this.pos + skip[0].length)
          if (next === ";" || next === "=") {
            node.key = this.parseIdent(true)
            node.computed = false
            maybeParseFieldValue.call(this, node)
            this.finishNode(node, "FieldDefinition")
            this.semicolon()
            return node
          } else if (this.options.ecmaVersion >= 8 && tryContextual("async", true)) {
            isAsync = true
            isGenerator = this.options.ecmaVersion >= 9 && this.eat(tt.star)
          }
        } else if (tryContextual("get")) {
          node.kind = "get"
        } else if (tryContextual("set")) {
          node.kind = "set"
        }
      }
      if (this.type === this.privateNameToken) {
        this.parsePrivateClassElementName(node)
        if (this.type !== tt.parenL) {
          if (node.key.name === "prototype") {
            this.raise(node.key.start, "Classes may not have a private static property named prototype")
          }
          maybeParseFieldValue.call(this, node)
          this.finishNode(node, "FieldDefinition")
          this.semicolon()
          return node
        }
      } else if (!node.key) {
        this.parsePropertyName(node)
        if ((node.key.name || node.key.value) === "prototype" && !node.computed) {
          this.raise(node.key.start, "Classes may not have a static property named prototype")
        }
      }
      if (!node.kind) { node.kind = "method" }
      this.parseClassMethod(node, isGenerator, isAsync)
      if (!node.kind && (node.key.name || node.key.value) === "constructor" && !node.computed) {
        this.raise(node.key.start, "Classes may not have a static field named constructor")
      }
      if (node.kind === "get" && node.value.params.length !== 0) {
        this.raiseRecoverable(node.value.start, "getter should have no params")
      }
      if (node.kind === "set" && node.value.params.length !== 1) {
        this.raiseRecoverable(node.value.start, "setter should have exactly one param")
      }
      if (node.kind === "set" && node.value.params[0].type === "RestElement") {
        this.raiseRecoverable(node.value.params[0].start, "Setter cannot use rest params")
      }

      return node

    };

    // Parse public static fields
    anonymous.prototype.parseClassMethod = function parseClassMethod (method, isGenerator, isAsync, _allowsDirectSuper) {
      if (isGenerator || isAsync || method.kind != "method" || !method.static || this.options.ecmaVersion < 8 || this.type == tt.parenL) {
        return ExtendedParser.prototype.parseClassMethod.apply(this, arguments)
      }
      maybeParseFieldValue.call(this, method)
      delete method.kind
      method = this.finishNode(method, "FieldDefinition")
      this.semicolon()
      return method
    };

    // Prohibit arguments in class field initializers
    anonymous.prototype.parseIdent = function parseIdent (liberal, isBinding) {
      var ident = ExtendedParser.prototype.parseIdent.call(this, liberal, isBinding)
      if (this._inStaticFieldValue && ident.name == "arguments") { this.raise(ident.start, "A static class field initializer may not contain arguments") }
      return ident
    };

    return anonymous;
  }(ExtendedParser))
}