Ep.updateContextPrevLoc = function()

in packages/transform/src/emit.js [883:905]

• 14 lines of code
• 3 McCabe index (conditional complexity)

Ep.updateContextPrevLoc = function(loc) {
  const t = util.getTypes();
  if (loc) {
    t.assertLiteral(loc);

    if (loc.value === -1) {
      // If an uninitialized location literal was passed in, set its value
      // to the current this.listing.length.
      loc.value = this.listing.length;
    } else {
      // Otherwise assert that the location matches the current offset.
      assert.strictEqual(loc.value, this.listing.length);
    }

  } else {
    loc = this.getUnmarkedCurrentLoc();
  }

  // Make sure context.prev is up to date in case we fell into this try
  // statement without jumping to it. TODO Consider avoiding this
  // assignment when we know control must have jumped here.
  this.emitAssign(this.contextProperty("prev"), loc);
};