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https://github.com/Z3Prover/z3
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65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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name_exprs.h
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Abstract:
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Goodies for naming nested expressions.
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Author:
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Leonardo (leonardo) 2011-10-06
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Notes:
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--*/
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#ifndef NAME_EXPRS_H_
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#define NAME_EXPRS_H_
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#include"ast.h"
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#include"defined_names.h"
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class expr_predicate {
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public:
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virtual bool operator()(expr * t) = 0;
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};
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class name_exprs {
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public:
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virtual ~name_exprs() {}
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virtual void operator()(expr * n, // [IN] expression that contain the sub-expressions to be named
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expr_ref_vector & new_defs, // [OUT] new definitions
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proof_ref_vector & new_def_proofs, // [OUT] proofs of the new definitions
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expr_ref & r, // [OUT] resultant expression
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proof_ref & p // [OUT] proof for (iff n p)
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) = 0;
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virtual void set_cancel(bool f) = 0;
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void cancel() { set_cancel(true); }
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void reset_cancel() { set_cancel(false); }
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virtual void reset() = 0;
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};
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/**
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\brief Create an expression "namer" that will create replace nested expressions that satisfy pred with new
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fresh declarations.
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*/
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name_exprs * mk_expr_namer(ast_manager & m, defined_names & n, expr_predicate & pred);
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/**
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\brief Create an expression "namer" that will replace quantifiers and labels with new fresh declarations.
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*/
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name_exprs * mk_quantifier_label_namer(ast_manager & m, defined_names & n);
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/**
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\brief Create an expression "namer" that will replace all nested formulas and term if-then-elses with
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fresh declarations.
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*/
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name_exprs * mk_nested_formula_namer(ast_manager & m, defined_names & n);
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void del_name_exprs(name_exprs * functor);
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#endif
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