“use strict”;

Object.defineProperty(exports, “__esModule”, {

value: true

}); exports.default = getBindingIdentifiers;

var _generated = require(“../validators/generated”);

function getBindingIdentifiers(node, duplicates, outerOnly) {

let search = [].concat(node);
const ids = Object.create(null);

while (search.length) {
  const id = search.shift();
  if (!id) continue;
  const keys = getBindingIdentifiers.keys[id.type];

  if ((0, _generated.isIdentifier)(id)) {
    if (duplicates) {
      const _ids = ids[id.name] = ids[id.name] || [];

      _ids.push(id);
    } else {
      ids[id.name] = id;
    }

    continue;
  }

  if ((0, _generated.isExportDeclaration)(id)) {
    if ((0, _generated.isDeclaration)(id.declaration)) {
      search.push(id.declaration);
    }

    continue;
  }

  if (outerOnly) {
    if ((0, _generated.isFunctionDeclaration)(id)) {
      search.push(id.id);
      continue;
    }

    if ((0, _generated.isFunctionExpression)(id)) {
      continue;
    }
  }

  if (keys) {
    for (let i = 0; i < keys.length; i++) {
      const key = keys[i];

      if (id[key]) {
        search = search.concat(id[key]);
      }
    }
  }
}

return ids;

}

getBindingIdentifiers.keys = {

DeclareClass: ["id"],
DeclareFunction: ["id"],
DeclareModule: ["id"],
DeclareVariable: ["id"],
DeclareInterface: ["id"],
DeclareTypeAlias: ["id"],
DeclareOpaqueType: ["id"],
InterfaceDeclaration: ["id"],
TypeAlias: ["id"],
OpaqueType: ["id"],
CatchClause: ["param"],
LabeledStatement: ["label"],
UnaryExpression: ["argument"],
AssignmentExpression: ["left"],
ImportSpecifier: ["local"],
ImportNamespaceSpecifier: ["local"],
ImportDefaultSpecifier: ["local"],
ImportDeclaration: ["specifiers"],
ExportSpecifier: ["exported"],
ExportNamespaceSpecifier: ["exported"],
ExportDefaultSpecifier: ["exported"],
FunctionDeclaration: ["id", "params"],
FunctionExpression: ["id", "params"],
ArrowFunctionExpression: ["params"],
ObjectMethod: ["params"],
ClassMethod: ["params"],
ForInStatement: ["left"],
ForOfStatement: ["left"],
ClassDeclaration: ["id"],
ClassExpression: ["id"],
RestElement: ["argument"],
UpdateExpression: ["argument"],
ObjectProperty: ["value"],
AssignmentPattern: ["left"],
ArrayPattern: ["elements"],
ObjectPattern: ["properties"],
VariableDeclaration: ["declarations"],
VariableDeclarator: ["id"]

};