Code coverage report for 6to5/transformers/rest-parameters.js

Statements: 100% (12 / 12)      Branches: 100% (4 / 4)      Functions: 100% (1 / 1)      Lines: 100% (10 / 10)      Ignored: none     

All files » 6to5/transformers/ » rest-parameters.js
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var util = require("../util");
var b    = require("recast").types.builders;
 
exports.Function = function (node, parent, file) {
  if (!node.rest) return;
 
  var rest = node.rest;
  delete node.rest;
 
  var templateName = "arguments-slice-assign";
  if (node.params.length) templateName += "-arg";
 
  util.ensureBlock(node);
  node.body.body.unshift(util.template(templateName, {
    SLICE_KEY: file.addDeclaration("slice"),
    VARIABLE_NAME: rest,
    SLICE_ARG: b.literal(node.params.length)
  }));
};