<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"><head><title>Attribute (infer.Biabduction.Attribute)</title><link rel="stylesheet" href="../../../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc 1.5.1"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><div class="content"><header><nav><a href="../index.html">Up</a> – <a href="../../index.html">infer</a> » <a href="../index.html">Biabduction</a> » Attribute</nav><h1>Module <code>Biabduction.Attribute</code></h1></header><aside><p>Attribute manipulation in Propositions (i.e., Symbolic Heaps)</p></aside><dl><dt class="spec value" id="val-is_pred"><a href="#val-is_pred" class="anchor"></a><code><span class="keyword">val</span> is_pred : <a href="../Predicates/index.html#type-atom">Predicates.atom</a> <span>-></span> bool</code></dt><dd><p>Check whether an atom is used to mark an attribute</p></dd></dl><dl><dt class="spec value" id="val-add"><a href="#val-add" class="anchor"></a><code><span class="keyword">val</span> add : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span>?⁠footprint:bool</span> <span>-></span> <span>?⁠polarity:bool</span> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/PredSymb/index.html#type-t">IR.PredSymb.t</a> <span>-></span> <span><a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> list</span> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Add an attribute associated to the argument expressions</p></dd></dl><dl><dt class="spec value" id="val-add_or_replace"><a href="#val-add_or_replace" class="anchor"></a><code><span class="keyword">val</span> add_or_replace : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../Predicates/index.html#type-atom">Predicates.atom</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Replace an attribute associated to the expression</p></dd></dl><dl><dt class="spec value" id="val-add_or_replace_check_changed"><a href="#val-add_or_replace_check_changed" class="anchor"></a><code><span class="keyword">val</span> add_or_replace_check_changed : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../Predicates/index.html#type-atom">Predicates.atom</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Replace an attribute associated to the expression, and call the given function with new and old attributes if they changed.</p></dd></dl><dl><dt class="spec value" id="val-get_all"><a href="#val-get_all" class="anchor"></a><code><span class="keyword">val</span> get_all : <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> list</span></code></dt><dd><p>Get all the attributes of the prop</p></dd></dl><dl><dt class="spec value" id="val-get_for_exp"><a href="#val-get_for_exp" class="anchor"></a><code><span class="keyword">val</span> get_for_exp : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> list</span></code></dt><dd><p>Get the attributes associated to the expression, if any</p></dd></dl><dl><dt class="spec value" id="val-get_objc_null"><a href="#val-get_objc_null" class="anchor"></a><code><span class="keyword">val</span> get_objc_null : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> option</span></code></dt><dd><p>Get the objc null attribute associated to the expression, if any</p></dd></dl><dl><dt class="spec value" id="val-get_observer"><a href="#val-get_observer" class="anchor"></a><code><span class="keyword">val</span> get_observer : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> option</span></code></dt><dd><p>Get the observer attribute associated to the expression, if any</p></dd></dl><dl><dt class="spec value" id="val-get_resource"><a href="#val-get_resource" class="anchor"></a><code><span class="keyword">val</span> get_resource : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> option</span></code></dt><dd><p>Get the resource attribute associated to the expression, if any</p></dd></dl><dl><dt class="spec value" id="val-get_undef"><a href="#val-get_undef" class="anchor"></a><code><span class="keyword">val</span> get_undef : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> option</span></code></dt><dd><p>Get the undef attribute associated to the expression, if any</p></dd></dl><dl><dt class="spec value" id="val-get_wontleak"><a href="#val-get_wontleak" class="anchor"></a><code><span class="keyword">val</span> get_wontleak : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Predicates/index.html#type-atom">Predicates.atom</a> option</span></code></dt><dd><p>Get the wontleak attribute associated to the expression, if any</p></dd></dl><dl><dt class="spec value" id="val-has_dangling_uninit"><a href="#val-has_dangling_uninit" class="anchor"></a><code><span class="keyword">val</span> has_dangling_uninit : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> bool</code></dt><dd><p>Test for existence of an Adangling DAuninit attribute associated to the exp</p></dd></dl><dl><dt class="spec value" id="val-remove"><a href="#val-remove" class="anchor"></a><code><span class="keyword">val</span> remove : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../Predicates/index.html#type-atom">Predicates.atom</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Remove an attribute</p></dd></dl><dl><dt class="spec value" id="val-remove_for_attr"><a href="#val-remove_for_attr" class="anchor"></a><code><span class="keyword">val</span> remove_for_attr : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/PredSymb/index.html#type-t">IR.PredSymb.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Remove all attributes for the given attr</p></dd></dl><dl><dt class="spec value" id="val-remove_resource"><a href="#val-remove_resource" class="anchor"></a><code><span class="keyword">val</span> remove_resource : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <a href="../../IR/PredSymb/index.html#type-res_act_kind">IR.PredSymb.res_act_kind</a> <span>-></span> <a href="../../IR/PredSymb/index.html#type-resource">IR.PredSymb.resource</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Remove all attributes for the given resource and kind</p></dd></dl><dl><dt class="spec value" id="val-map_resource"><a href="#val-map_resource" class="anchor"></a><code><span class="keyword">val</span> map_resource : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <span>(<a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <a href="../../IR/PredSymb/index.html#type-res_action">IR.PredSymb.res_action</a> <span>-></span> <a href="../../IR/PredSymb/index.html#type-res_action">IR.PredSymb.res_action</a>)</span> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Apply f to every resource attribute in the prop</p></dd></dl><dl><dt class="spec value" id="val-replace_objc_null"><a href="#val-replace_objc_null" class="anchor"></a><code><span class="keyword">val</span> replace_objc_null : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p><code>replace_objc_null lhs rhs</code>. If rhs has the objc_null attribute, replace the attribute and set the lhs = 0</p></dd></dl><dl><dt class="spec value" id="val-nullify_exp_with_objc_null"><a href="#val-nullify_exp_with_objc_null" class="anchor"></a><code><span class="keyword">val</span> nullify_exp_with_objc_null : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>For each Var subexp of the argument with an Aobjc_null attribute, remove the attribute and conjoin an equality to zero.</p></dd></dl><dl><dt class="spec value" id="val-mark_vars_as_undefined"><a href="#val-mark_vars_as_undefined" class="anchor"></a><code><span class="keyword">val</span> mark_vars_as_undefined : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <span>ret_exp:<a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a></span> <span>-></span> <span>undefined_actuals_by_ref:<span><a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> list</span></span> <span>-></span> <a href="../../IR/Procname/index.html#type-t">IR.Procname.t</a> <span>-></span> <a href="../../IR/Annot/Item/index.html#type-t">IR.Annot.Item.t</a> <span>-></span> <a href="../../IBase/Location/index.html#type-t">IBase.Location.t</a> <span>-></span> <a href="../../IR/PredSymb/index.html#type-path_pos">IR.PredSymb.path_pos</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>mark Exp.Var's or Exp.Lvar's as undefined</p></dd></dl><dl><dt class="spec type" id="type-arith_problem"><a href="#type-arith_problem" class="anchor"></a><code><span class="keyword">type</span> arith_problem</code><code> = </code><table class="variant"><tr id="type-arith_problem.Div0" class="anchored"><td class="def constructor"><a href="#type-arith_problem.Div0" class="anchor"></a><code>| </code><code><span class="constructor">Div0</span> <span class="keyword">of</span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a></code></td></tr><tr id="type-arith_problem.UminusUnsigned" class="anchored"><td class="def constructor"><a href="#type-arith_problem.UminusUnsigned" class="anchor"></a><code>| </code><code><span class="constructor">UminusUnsigned</span> <span class="keyword">of</span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> * <a href="../../IR/Typ/index.html#type-t">IR.Typ.t</a></code></td></tr></table></dt><dd><p>type for arithmetic problems</p></dd></dl><dl><dt class="spec value" id="val-find_arithmetic_problem"><a href="#val-find_arithmetic_problem" class="anchor"></a><code><span class="keyword">val</span> find_arithmetic_problem : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <a href="../../IR/PredSymb/index.html#type-path_pos">IR.PredSymb.path_pos</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><a href="index.html#type-arith_problem">arith_problem</a> option</span> * <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Look for an arithmetic problem in <code>exp</code></p></dd></dl><dl><dt class="spec value" id="val-deallocate_stack_vars"><a href="#val-deallocate_stack_vars" class="anchor"></a><code><span class="keyword">val</span> deallocate_stack_vars : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <span><a href="../../IR/Pvar/index.html#type-t">IR.Pvar.t</a> list</span> <span>-></span> <span><a href="../../IR/Pvar/index.html#type-t">IR.Pvar.t</a> list</span> * <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></span></code></dt><dd><p>Deallocate the stack variables in <code>pvars</code>, and replace them by normal variables. Return the list of stack variables whose address was still present after deallocation.</p></dd></dl><dl><dt class="spec value" id="val-find_equal_formal_path"><a href="#val-find_equal_formal_path" class="anchor"></a><code><span class="keyword">val</span> find_equal_formal_path : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>-></span> <a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> <span>-></span> <span><span class="type-var">'a</span> <a href="../Prop/index.html#type-t">Prop.t</a></span> <span>-></span> <span><a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> option</span></code></dt></dl></div></body></html>