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<htmlxmlns="http://www.w3.org/1999/xhtml"><head><title>Errdesc (infer.Biabduction.Errdesc)</title><linkrel="stylesheet"href="../../../odoc.css"/><metacharset="utf-8"/><metaname="generator"content="odoc 1.5.2"/><metaname="viewport"content="width=device-width,initial-scale=1.0"/><scriptsrc="../../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><divclass="content"><header><nav><ahref="../index.html">Up</a>–<ahref="../../index.html">infer</a>»<ahref="../index.html">Biabduction</a>» Errdesc</nav><h1>Module <code>Biabduction.Errdesc</code></h1></header><aside><p>Create descriptions of analysis errors</p></aside><dl><dtclass="spec value"id="val-vpath_find"><ahref="#val-vpath_find"class="anchor"></a><code><spanclass="keyword">val</span> vpath_find : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><span><spanclass="type-var">'a</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/DecompiledExp/index.html#type-vpath">IR.DecompiledExp.vpath</a> * <span><ahref="../../IR/Typ/index.html#type-t">IR.Typ.t</a> option</span></code></dt><dd><p>find the dexp, if any, where the given value is stored also return the type of the value if found</p></dd></dl><dl><dtclass="spec value"id="val-hpred_is_open_resource"><ahref="#val-hpred_is_open_resource"class="anchor"></a><code><spanclass="keyword">val</span> hpred_is_open_resource : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><span><spanclass="type-var">'a</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><ahref="../Predicates/index.html#type-hpred">Predicates.hpred</a><span>-></span><span><ahref="../../IR/PredSymb/index.html#type-resource">IR.PredSymb.resource</a> option</span></code></dt><dd><p>Check whether the hpred is a |-> representing a resource in the Racquire state</p></dd></dl><dl><dtclass="spec value"id="val-find_ident_assignment"><ahref="#val-find_ident_assignment"class="anchor"></a><code><spanclass="keyword">val</span> find_ident_assignment : <ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IR/Ident/index.html#type-t">IR.Ident.t</a><span>-></span><span><span>(<ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a> * <ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a>)</span> option</span></code></dt><dd><p>Find a program variable assignment to id in the current node or predecessors.</p></dd></dl><dl><dtclass="spec value"id="val-exp_rv_dexp"><ahref="#val-exp_rv_dexp"class="anchor"></a><code><spanclass="keyword">val</span> exp_rv_dexp : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><span><ahref="../../IR/DecompiledExp/index.html#type-t">IR.DecompiledExp.t</a> option</span></code></dt><dd><p>describe rvalue <code>e</code> as a dexp</p></dd></dl><dl><dtclass="spec value"id="val-explain_array_access"><ahref="#val-explain_array_access"class="anchor"></a><code><spanclass="keyword">val</span> explain_array_access : <ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../Absint/Localise/index.html#type-deref_str">Absint.Localise.deref_str</a><span>-></span><span><spanclass="type-var">'a</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>Produce a description of the array access performed in the current instruction, if any.</p></dd></dl><dl><dtclass="spec value"id="val-explain_class_cast_exception"><ahref="#val-explain_class_cast_exception"class="anchor"></a><code><spanclass="keyword">val</span> explain_class_cast_exception : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a> option</span><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>explain a class cast exception</p></dd></dl><dl><dtclass="spec value"id="val-explain_dereference"><ahref="#val-explain_dereference"class="anchor"></a><code><spanclass="keyword">val</span> explain_dereference : <ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><span>?⁠use_buckets:bool</span><span>-></span><span>?⁠is_nullable:bool</span><span>-></span><span>?⁠is_premature_nil:bool</span><span>-></span><ahref="../../Absint/Localise/index.html#type-deref_str">Absint.Localise.deref_str</a><span>-></span><span><spanclass="type-var">'a</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>Produce a description of which expression is dereferenced in the current instruction, if any.</p></dd></dl><dl><dtclass="spec value"id="val-explain_dereference_as_caller_expression"><ahref="#val-explain_dereference_as_caller_expression"class="anchor"></a><code><spanclass="keyword">val</span> explain_dereference_as_caller_expression : <ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><span>?⁠use_buckets:bool</span><span>-></span><ahref="../../Absint/Localise/index.html#type-deref_str">Absint.Localise.deref_str</a><span>-></span><span><spanclass="type-var">'a</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><span><spanclass="type-var">'b</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><span><ahref="../../IR/Pvar/index.html#type-t">IR.Pvar.t</a> list</span><span>-></span><ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>return a description explaining value <code>exp</code> in <code>prop</code> in terms of a source expression using the formal parameters of the call</p></dd></dl><dl><dtclass="spec value"id="val-explain_divide_by_zero"><ahref="#val-explain_divide_by_zero"class="anchor"></a><code><spanclass="keyword">val</span> explain_divide_by_zero : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>explain a division by zero</p></dd></dl><dl><dtclass="spec value"id="val-explain_condition_always_true_false"><ahref="#val-explain_condition_always_true_false"class="anchor"></a><code><spanclass="keyword">val</span> explain_condition_always_true_false : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/IntLit/index.html#type-t">IR.IntLit.t</a><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>explain a condition which is always true or false</p></dd></dl><dl><dtclass="spec value"id="val-explain_leak"><ahref="#val-explain_leak"class="anchor"></a><code><spanclass="keyword">val</span> explain_leak : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../Predicates/index.html#type-hpred">Predicates.hpred</a><span>-></span><span><spanclass="type-var">'a</span><ahref="../Prop/index.html#type-t">Prop.t</a></span><span>-></span><span><ahref="../../IR/PredSymb/index.html#type-t">IR.PredSymb.t</a> option</span><span>-></span><span>string option</span><span>-></span> bool * <ahref="../../Absint/Localise/index.html#type-error_desc">Absint.Localise.error_desc</a></code></dt><dd><p>Produce a description of a leak by looking at the current state. If the current instruction is a variable nullify, blame the variable. If it is an abstraction, blame any variable nullify at the current node. If there is an alloc attribute, print the function call and line number.</p></dd></dl><dl><dtclass="spec value"id="val-warning_err"><ahref="#val-warning_err"class="anchor"></a><code><spanclass="keyword">val</span> warning_err : <ahref="../../IBase/Location/index.html#type-t">IBase.Location.t</a><span>-></span><span><span>(<spanclass="type-var">'a</span>,Stdlib.Format.formatter,unit)</span><ahref="../../IStdlib/index.html#module-IStd">IStdlib.IStd</a>.format</span><span>-></span><spanclass="type-var">'a</span></code></dt><dd><p>warn at the given location</p></dd></dl><dl><dtclass="spec value"id="val-find_outermost_dereference"><ahref="#val-find_outermost_dereference"class="anchor"></a><code><spanclass="keyword">val</span> find_outermost_dereference : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a><span>-></span><ahref="../../IR/Exp/index.html#type-t">IR.Exp.t</a><span>-></span><span><ahref="../../IR/DecompiledExp/index.html#type-t">IR.DecompiledExp.t</a> option</span></code></dt><dtclass="spec value"id="val-access_opt"><ahref="#val-access_opt"class="anchor"></a><code><spanclass="keyword">val</span> access_opt : <span>?⁠is_nullable:bool</span><span>-></span><ahref="../Predicates/index.html#type-inst">Predicates.inst</a><span>-></span><span><ahref="../../Absint/Localise/index.html#type-access">Absint.Localise.access</a> option</span></code></dt></dl></div></body></html>
