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<body lang="ES" link="blue" vlink="purple"><div>Hi Ivan,</div><div><br></div><div>On Sun, 11 Aug 2013 11:14:16 -0400, Ivan Carmenates García <co7eb@frcuba.co.cu> wrote:<br></div><span lang="EN-US"></span><blockquote style="margin: 0 0 0.80ex; border-left: #0000FF 2px solid; padding-left: 1ex"><div class="WordSection1"><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">I check the source of application module to see if the start_type() type was exported and it is not.</span></p><p class="MsoNormal"><span lang="EN-US">And my module compiles well, and even I changed to StartType :: unknown_module: unknown_type() type and it still compiles,</span></p><p class="MsoNormal"><span lang="EN-US">It seems that there are no type checking outside of the module.</span></p></div></blockquote><div><br></div><div>Are you using Dialyzer to check types? The Erlang compiler itself does not perform typechecking. You can run Dialyzer (included with OTP) on your source code like this:</div><div><br></div><div>$ dialyzer --src <source code directory></div><div><br></div><div>or, if you compile your code with debugging enabled, you can run it like this:</div><div><br></div><div>$ dialyzer <object file directory></div><div><br></div><div>In addition to inferring types, Dialyzer will check that code adheres to -spec declarations, and it will warn about unexported types.</div><div><br></div><div>Note that you have to run Dialyzer on *all* your modules, as it only sees the modules you tell it about, and those whose specifications have been explicitly stored in its "PLT" database (by default erts, kernel, and stdlib).</div></body></html>