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integrate lambda expressions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-06-26 07:23:04 -07:00
parent bf4edef761
commit 520ce9a5ee
139 changed files with 2243 additions and 1506 deletions
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12
src/ast/rewriter/array_rewriter.cpp
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@ -20,6 +20,7 @@ Notes:
#include "ast/rewriter/array_rewriter_params.hpp"
#include "ast/ast_lt.h"
#include "ast/ast_pp.h"
#include "ast/rewriter/var_subst.h"
void array_rewriter::updt_params(params_ref const & _p) {
array_rewriter_params p(_p);
@ -196,6 +197,17 @@ br_status array_rewriter::mk_select_core(unsigned num_args, expr * const * args,
return BR_DONE;
}
if (is_lambda(args[0])) {
// anywhere lambda reduction as opposed to whnf
// select(lambda(X) M, N) -> M[N/X]
quantifier* q = to_quantifier(args[0]);
SASSERT(q->get_num_decls() == num_args - 1);
var_subst subst(m());
result = subst(q->get_expr(), num_args - 1, args + 1);
return BR_REWRITE_FULL;
}
if (m_util.is_as_array(args[0])) {
// select(as-array[f], I) --> f(I)
func_decl * f = m_util.get_as_array_func_decl(to_app(args[0]));