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seq

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-12-08 03:34:58 -08:00
parent 03d1391ded
commit e7687132ed
3 changed files with 30 additions and 31 deletions
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31
src/ast/rewriter/seq_rewriter.cpp
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@ -40,13 +40,9 @@ br_status seq_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr * con
case OP_RE_LOOP:
case OP_RE_EMPTY_SET:
case OP_RE_FULL_SET:
case OP_RE_EMPTY_SEQ:
case OP_RE_OF_PRED:
return BR_FAILED;
// string specific operators.
case OP_STRING_CONST:
return BR_FAILED;
case OP_SEQ_CONCAT:
SASSERT(num_args == 2);
return mk_seq_concat(args[0], args[1], result);
@ -62,26 +58,31 @@ br_status seq_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr * con
case OP_SEQ_AT:
SASSERT(num_args == 2);
return mk_str_at(args[0], args[1], result);
case OP_STRING_STRIDOF:
SASSERT(num_args == 3);
return mk_str_stridof(args[0], args[1], args[2], result);
case OP_STRING_STRREPL:
SASSERT(num_args == 3);
return mk_str_strrepl(args[0], args[1], args[2], result);
case OP_SEQ_PREFIX:
SASSERT(num_args == 2);
return mk_seq_prefix(args[0], args[1], result);
case OP_SEQ_SUFFIX:
SASSERT(num_args == 2);
return mk_seq_suffix(args[0], args[1], result);
case OP_SEQ_TO_RE:
return BR_FAILED;
case OP_SEQ_IN_RE:
return BR_FAILED;
case OP_STRING_CONST:
return BR_FAILED;
case OP_STRING_STRIDOF:
SASSERT(num_args == 3);
return mk_str_stridof(args[0], args[1], args[2], result);
case OP_STRING_STRREPL:
SASSERT(num_args == 3);
return mk_str_strrepl(args[0], args[1], args[2], result);
case OP_STRING_ITOS:
SASSERT(num_args == 1);
return mk_str_itos(args[0], result);
case OP_STRING_STOI:
SASSERT(num_args == 1);
return mk_str_stoi(args[0], result);
case OP_SEQ_TO_RE:
case OP_SEQ_IN_RE:
case OP_REGEXP_LOOP:
return BR_FAILED;
case _OP_STRING_CONCAT:
@ -140,7 +141,7 @@ br_status seq_rewriter::mk_str_length(expr* a, expr_ref& result) {
m_es.reset();
m_util.str.get_concat(a, m_es);
size_t len = 0;
size_t j = 0;
unsigned j = 0;
for (unsigned i = 0; i < m_es.size(); ++i) {
if (m_util.str.is_string(m_es[i], b)) {
len += b.length();
@ -154,7 +155,7 @@ br_status seq_rewriter::mk_str_length(expr* a, expr_ref& result) {
result = m_autil.mk_numeral(rational(len, rational::ui64()), true);
return BR_DONE;
}
if (j != m_es.size()) {
if (j != m_es.size() || j != 1) {
expr_ref_vector es(m());
for (unsigned i = 0; i < j; ++i) {
es.push_back(m_util.str.mk_length(m_es[i]));