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2e7b700769
* Initial plan * Update z3 codebase to use std::string_view (except z3++.h) - Updated params.cpp/h to use string_view internally for parameter descriptions - Updated trace.h/cpp to accept string_view for trace tag functions - Updated hash.h/cpp to use string_view for string_hash function - Updated all callers of string_hash to use string_view - Properly handled nullptr to empty string_view conversions - All tests passing Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com> * Add missing string_view includes to headers Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
/*++
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Copyright (c) 2006 Microsoft Corporation
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Module Name:
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cached_var_subst.h
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Abstract:
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<abstract>
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Author:
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Leonardo de Moura (leonardo) 2009-01-23.
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Revision History:
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--*/
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#pragma once
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#include "ast/rewriter/var_subst.h"
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#include "util/map.h"
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class cached_var_subst {
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struct key {
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quantifier * m_qa;
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unsigned m_num_bindings;
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expr * m_bindings[0];
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};
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struct key_hash_proc {
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unsigned operator()(key * k) const {
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return string_hash(std::string_view(reinterpret_cast<char const *>(k->m_bindings), sizeof(expr *) * k->m_num_bindings), k->m_qa->get_id());
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}
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};
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struct key_eq_proc {
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bool operator()(key * k1, key * k2) const;
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};
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typedef map<key *, expr *, key_hash_proc, key_eq_proc> instances;
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ast_manager& m;
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var_subst m_proc;
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expr_ref_vector m_refs;
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instances m_instances;
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region m_region;
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ptr_vector<key> m_new_keys; // mapping from num_bindings -> next key
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key* m_key { nullptr };
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public:
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cached_var_subst(ast_manager & m);
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expr** operator()(quantifier * qa, unsigned num_bindings);
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expr_ref operator()();
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void reset();
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};
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