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<p class="MsoNormal"><span style="font-size:12.0pt">Bartosz<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">How are you getting on with tidying up substitutions.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I’ve done a bit in that direction myself:<o:p></o:p></span></p>
<p class="MsoPlainText" style="margin-left:36.0pt">commit 1c6d70c2121fd1126fcc2458bdbcc856e19598c2<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:36.0pt">Author: Simon Peyton Jones <<a href="mailto:simonpj@microsoft.com">simonpj@microsoft.com</a>><o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:36.0pt">Date: Tue Jan 26 09:37:06 2016 +0000<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoPlainText" style="margin-left:36.0pt"> Kill off zipTopTCvSubst in favour of zipOpenTCvSubst<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">But there is more to do.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">In particular, I note that <b>
substTys is not checked</b> – but neither is it called substTysUnchecked. It should be! That will show up a bunch more cases, I think.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Another particular thing, arising from my patch, is that
<b>we can now do some renaming</b><o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:12.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:12.0pt">zipOpenTCvSubst -> zipTvSubst (It only deals with tyvars)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:12.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:12.0pt">zipOpenTCvSubstCoVars -> zipCvSubst (it only deals with covars)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:12.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:12.0pt">zipOpenTCvSubstBinders -> zipTyBinderSubst (it only deals with TyBinders, not covars)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I guess you’ll want to do similar things for the “mk” variants.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Anyway: good for you! Let me know if you need help.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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