jspm_packages/npm/babel-core@5.8.38/lib/generation/generators/expressions.js
function AssignmentExpression(node, print, parent) {
  // Somewhere inside a for statement `init` node but doesn't usually
  // needs a paren except for `in` expressions: `for (a in b ? a : b;;)`
  var parens = this._inForStatementInit && node.operator === "in" && !_node2["default"].needsParens(node, parent);

  if (parens) {
    this.push("(");
  }

  // todo: add cases where the spaces can be dropped when in compact mode
  print.plain(node.left);

  var spaces = node.operator === "in" || node.operator === "instanceof";
  spaces = true; // todo: https://github.com/babel/babel/issues/1835
  this.space(spaces);

  this.push(node.operator);

  if (!spaces) {
    // space is mandatory to avoid outputting <!--
    // http://javascript.spec.whatwg.org/#comment-syntax
    spaces = node.operator === "<" && t.isUnaryExpression(node.right, { prefix: true, operator: "!" }) && t.isUnaryExpression(node.right.argument, { prefix: true, operator: "--" });
  }

  this.space(spaces);

  print.plain(node.right);

  if (parens) {
    this.push(")");
  }
}
function AssignmentExpression(node, print, parent) {
  // Somewhere inside a for statement `init` node but doesn't usually
  // needs a paren except for `in` expressions: `for (a in b ? a : b;;)`
  var parens = this._inForStatementInit && node.operator === "in" && !_node2["default"].needsParens(node, parent);

  if (parens) {
    this.push("(");
  }

  // todo: add cases where the spaces can be dropped when in compact mode
  print.plain(node.left);

  var spaces = node.operator === "in" || node.operator === "instanceof";
  spaces = true; // todo: https://github.com/babel/babel/issues/1835
  this.space(spaces);

  this.push(node.operator);

  if (!spaces) {
    // space is mandatory to avoid outputting <!--
    // http://javascript.spec.whatwg.org/#comment-syntax
    spaces = node.operator === "<" && t.isUnaryExpression(node.right, { prefix: true, operator: "!" }) && t.isUnaryExpression(node.right.argument, { prefix: true, operator: "--" });
  }

  this.space(spaces);

  print.plain(node.right);

  if (parens) {
    this.push(")");
  }
}
function AssignmentExpression ( node , print , parent ) { // Somewhere inside a for statement `init` node but doesn't usually // needs a paren except for `in` expressions: `for (a in b ? a : b;;)` var parens = this . _inForStatementInit && node . operator === "in" && ! _node2 [ "default" ] . needsParens ( node , parent ) ; if ( parens ) { this . push ( "(" ) ; } // todo: add cases where the spaces can be dropped when in compact mode print . plain ( node . left ) ; var spaces = node . operator === "in" || node . operator === "instanceof" ; spaces = true ; // todo: https://github.com/babel/babel/issues/1835 this . space ( spaces ) ; this . push ( node . operator ) ; if ( ! spaces ) { // space is mandatory to avoid outputting <!-- // http://javascript.spec.whatwg.org/#comment-syntax spaces = node . operator === "<" && t . isUnaryExpression ( node . right , { prefix : true , operator : "!" } ) && t . isUnaryExpression ( node . right . argument , { prefix : true , operator : "--" } ) ; } this . space ( spaces ) ; print . plain ( node . right ) ; if ( parens ) { this . push ( ")" ) ; } }
Prints AssignmentExpression, prints left, operator, and right.
Prints AssignmentExpression prints left operator and right .