@InProceedings{roberts_et_al:LIPIcs.ECOOP.2019.5, author = {Roberts, Richard and Marr, Stefan and Homer, Michael and Noble, James}, title = {{Transient Typechecks Are (Almost) Free}}, booktitle = {33rd European Conference on Object-Oriented Programming (ECOOP 2019)}, pages = {5:1--5:28}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-111-5}, ISSN = {1868-8969}, year = {2019}, volume = {134}, editor = {Donaldson, Alastair F.}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2019.5}, URN = {urn:nbn:de:0030-drops-107974}, doi = {10.4230/LIPIcs.ECOOP.2019.5}, annote = {Keywords: dynamic type checking, gradual types, optional types, Grace, Moth, object-oriented programming} }