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<h1>Module <a href="type_Diagnostic.html">Diagnostic</a></h1>

<pre><span class="keyword">module</span> Diagnostic: <code class="code">sig</code> <a href="Diagnostic.html">..</a> <code class="code">end</code></pre><div class="info module top">
One un-installability reason for a package<br>
</div>
<hr width="100%">

<pre><span class="keyword">module</span> <a href="Diagnostic.OcamlHash.html">OcamlHash</a>: <code class="type">Hashtbl</code></pre>
<pre><span class="keyword">include</span> struct ... end</pre>

<pre><code><span id="TYPEreason"><span class="keyword">type</span> <code class="type"></code>reason</span> = </code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTreason.Dependency"><span class="constructor">Dependency</span></span> <span class="keyword">of</span> <code class="type">(Cudf.package * Cudf_types.vpkg list * Cudf.package list)</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Not strictly a un-installability, Dependency (a,vpkglist,pkglist) is used
      to recontruct the the dependency path from the root package to the
      offending un-installable package</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTreason.Missing"><span class="constructor">Missing</span></span> <span class="keyword">of</span> <code class="type">(Cudf.package * Cudf_types.vpkg list)</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Missing (a,vpkglist) means that the dependency
      <code class="code">vpkglist</code> of package <code class="code">a</code> cannot be satisfied</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTreason.Conflict"><span class="constructor">Conflict</span></span> <span class="keyword">of</span> <code class="type">(Cudf.package * Cudf.package * Cudf_types.vpkg)</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Conflict (a,b,vpkg) means that the package <code class="code">a</code> is in conflict
      with package <code class="code">b</code> because of vpkg</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>

<div class="info ">
One un-installability reason for a package<br>
</div>


<pre><code><span id="TYPErequest"><span class="keyword">type</span> <code class="type"></code>request</span> = </code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTrequest.Package"><span class="constructor">Package</span></span> <span class="keyword">of</span> <code class="type">Cudf.package</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Check the installability of one package</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTrequest.PackageList"><span class="constructor">PackageList</span></span> <span class="keyword">of</span> <code class="type">Cudf.package list</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Check the installability of a list of packages</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>

<div class="info ">
The request provided to the solver<br>
</div>


<pre><code><span id="TYPEresult"><span class="keyword">type</span> <code class="type"></code>result</span> = </code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTresult.Success"><span class="constructor">Success</span></span> <span class="keyword">of</span> <code class="type">(?all:bool -> unit -> Cudf.package list)</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >If successfull returns a function that will
      return the installation set for the given query. Since
      not all packages are tested for installability directly, the
      installation set might be empty. In this case, the solver can
      be called again to provide the real installation set 
      using the parameter <code class="code">~all:true</code></td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTresult.Failure"><span class="constructor">Failure</span></span> <span class="keyword">of</span> <code class="type">(unit -> <a href="Diagnostic.html#TYPEreason">reason</a> list)</code></code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >If unsuccessful returns a function containing the list of reason</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>

<div class="info ">
The result of an installability query<br>
</div>


<pre><code><span id="TYPEdiagnosis"><span class="keyword">type</span> <code class="type"></code>diagnosis</span> = {</code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTdiagnosis.result">result</span>&nbsp;: <code class="type"><a href="Diagnostic.html#TYPEresult">result</a></code>;</code></td>

</tr>
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTdiagnosis.request">request</span>&nbsp;: <code class="type"><a href="Diagnostic.html#TYPErequest">request</a></code>;</code></td>

</tr></table>
}



<pre><span class="keyword">module</span> <a href="Diagnostic.ResultHash.html">ResultHash</a>: <code class="type">OcamlHash.Make</code><code class="code">(</code><code class="code">sig</code><div class="sig_block">
<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> = <code class="type"><a href="Diagnostic.html#TYPEreason">Diagnostic.reason</a></code> </pre>


<pre><span id="VALequal"><span class="keyword">val</span> equal</span> : <code class="type"><a href="Diagnostic.html#TYPEreason">Diagnostic.reason</a> -> <a href="Diagnostic.html#TYPEreason">Diagnostic.reason</a> -> bool</code></pre>
<pre><span id="VALhash"><span class="keyword">val</span> hash</span> : <code class="type"><a href="Diagnostic.html#TYPEreason">Diagnostic.reason</a> -> int</code></pre></div><code class="code">end</code><code class="code">)</code></pre>
<pre><code><span id="TYPEsummary"><span class="keyword">type</span> <code class="type"></code>summary</span> = {</code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span class="keyword">mutable&nbsp;</span><span id="TYPEELTsummary.missing">missing</span>&nbsp;: <code class="type">int</code>;</code></td>

</tr>
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span class="keyword">mutable&nbsp;</span><span id="TYPEELTsummary.conflict">conflict</span>&nbsp;: <code class="type">int</code>;</code></td>

</tr>
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span class="keyword">mutable&nbsp;</span><span id="TYPEELTsummary.unique_missing">unique_missing</span>&nbsp;: <code class="type">int</code>;</code></td>

</tr>
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span class="keyword">mutable&nbsp;</span><span id="TYPEELTsummary.unique_conflict">unique_conflict</span>&nbsp;: <code class="type">int</code>;</code></td>

</tr>
<tr>
<td align="left" valign="top" >
<code>&nbsp;&nbsp;</code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTsummary.summary">summary</span>&nbsp;: <code class="type">Cudf.package list Pervasives.ref ResultHash.t</code>;</code></td>

</tr></table>
}



<pre><span id="VALdefault_result"><span class="keyword">val</span> default_result</span> : <code class="type">int -> <a href="Diagnostic.html#TYPEsummary">summary</a></code></pre>
<pre><span id="VALbuild_paths"><span class="keyword">val</span> build_paths</span> : <code class="type">(Cudf.package * 'a * Cudf.package list) list -><br>       Cudf.package -> (Cudf.package * 'a) list list</code></pre><div class="info ">
given a list of dependencies, return a list of list containg all
 *  paths in the dependency tree starting from <code class="code">root</code><br>
</div>

<pre><span id="VALpp_package"><span class="keyword">val</span> pp_package</span> : <code class="type">?source:bool -><br>       ('a -> string * string * (string * string) list) -><br>       Format.formatter -> 'a -> unit</code></pre>
<pre><span id="VALpp_vpkglist"><span class="keyword">val</span> pp_vpkglist</span> : <code class="type">(Cudf.package -> string * string * 'a) -><br>       Format.formatter -><br>       (Cudf_types.pkgname *<br>        ([< `Eq | `Geq | `Gt | `Leq | `Lt | `Neq ] * Cudf_types.version) option)<br>       list -> unit</code></pre>
<pre><span id="VALpp_dependency"><span class="keyword">val</span> pp_dependency</span> : <code class="type">(Cudf.package -> string * string * (string * string) list) -><br>       ?label:string -><br>       Format.formatter -><br>       Cudf.package *<br>       (Cudf_types.pkgname *<br>        ([< `Eq | `Geq | `Gt | `Leq | `Lt | `Neq ] * Cudf_types.version) option)<br>       list -> unit</code></pre>
<pre><span id="VALpp_list"><span class="keyword">val</span> pp_list</span> : <code class="type">(Format.formatter -> 'a -> unit) -> Format.formatter -> 'a list -> unit</code></pre>
<pre><span id="VALcreate_pathlist"><span class="keyword">val</span> create_pathlist</span> : <code class="type">Cudf.package -><br>       <a href="Diagnostic.html#TYPEreason">reason</a> list -> (Cudf.package * Cudf_types.vpkg list) list list</code></pre>
<pre><span id="VALpp_dependencies"><span class="keyword">val</span> pp_dependencies</span> : <code class="type">(Cudf.package -> string * string * (string * string) list) -><br>       Format.formatter -><br>       (Cudf.package *<br>        (Cudf_types.pkgname *<br>         ([< `Eq | `Geq | `Gt | `Leq | `Lt | `Neq ] * Cudf_types.version) option)<br>        list)<br>       list list -> unit</code></pre>
<pre><span id="VALprint_error"><span class="keyword">val</span> print_error</span> : <code class="type">(Cudf.package -> string * string * (string * string) list) -><br>       Cudf.package -> Format.formatter -> <a href="Diagnostic.html#TYPEreason">reason</a> list -> unit</code></pre>
<pre><span id="VALminimize"><span class="keyword">val</span> minimize</span> : <code class="type"><a href="Diagnostic.html#TYPErequest">request</a> -> Cudf.package list -> Cudf.package list</code></pre>
<pre><span id="VALget_installationset"><span class="keyword">val</span> get_installationset</span> : <code class="type">?minimal:bool -> <a href="Diagnostic.html#TYPEdiagnosis">diagnosis</a> -> Cudf.package list</code></pre>
<pre><span id="VALis_solution"><span class="keyword">val</span> is_solution</span> : <code class="type"><a href="Diagnostic.html#TYPEdiagnosis">diagnosis</a> -> bool</code></pre>
<pre><span id="VALdefault_pp"><span class="keyword">val</span> default_pp</span> : <code class="type">Cudf.package -> Cudf_types.pkgname * string * 'a list</code></pre><div class="info ">
<code class="code">default_pp</code> default package printer. If the version of the package is
  * a negative number, the version version if printed as "nan"<br>
</div>

<pre><span id="VALfprintf"><span class="keyword">val</span> fprintf</span> : <code class="type">?pp:(Cudf.package -> Cudf_types.pkgname * string * (string * string) list) -><br>       ?failure:bool -><br>       ?success:bool -><br>       ?explain:bool -><br>       ?minimal:bool -> Format.formatter -> <a href="Diagnostic.html#TYPEdiagnosis">diagnosis</a> -> unit</code></pre>
<pre><span id="VALprintf"><span class="keyword">val</span> printf</span> : <code class="type">?pp:(Cudf.package -> Cudf_types.pkgname * string * (string * string) list) -><br>       ?failure:bool -><br>       ?success:bool -> ?explain:bool -> <a href="Diagnostic.html#TYPEdiagnosis">diagnosis</a> -> unit</code></pre>
<pre><span id="VALcollect"><span class="keyword">val</span> collect</span> : <code class="type"><a href="Diagnostic.html#TYPEsummary">summary</a> -> <a href="Diagnostic.html#TYPEdiagnosis">diagnosis</a> -> unit</code></pre>
<pre><span id="VALpp_summary_row"><span class="keyword">val</span> pp_summary_row</span> : <code class="type">bool -><br>       (Cudf.package -> string * string * (string * string) list) -><br>       Format.formatter -> <a href="Diagnostic.html#TYPEreason">reason</a> * Cudf.package list -> unit</code></pre>
<pre><span id="VALpp_summary"><span class="keyword">val</span> pp_summary</span> : <code class="type">?pp:(Cudf.package -> Cudf_types.pkgname * string * (string * string) list) -><br>       ?explain:bool -> unit -> Format.formatter -> <a href="Diagnostic.html#TYPEsummary">summary</a> -> unit</code></pre></body></html>