mirror of
https://github.com/Z3Prover/z3
synced 2025-04-06 01:24:08 +00:00
api: avoid some string copies when using mk_external_string
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parent
0b9ed925d6
commit
bd8c870bbe
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@ -1799,7 +1799,7 @@ def write_log_h_preamble(log_h):
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log_h.write('extern atomic<bool> g_z3_log_enabled;\n')
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log_h.write('void ctx_enable_logging();\n')
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log_h.write('class z3_log_ctx { bool m_prev; public: z3_log_ctx() { ATOMIC_EXCHANGE(m_prev, g_z3_log_enabled, false); } ~z3_log_ctx() { if (m_prev) g_z3_log_enabled = true; } bool enabled() const { return m_prev; } };\n')
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log_h.write('void SetR(void * obj);\nvoid SetO(void * obj, unsigned pos);\nvoid SetAO(void * obj, unsigned pos, unsigned idx);\n')
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log_h.write('void SetR(const void * obj);\nvoid SetO(void * obj, unsigned pos);\nvoid SetAO(void * obj, unsigned pos, unsigned idx);\n')
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log_h.write('#define RETURN_Z3(Z3RES) do { auto tmp_ret = Z3RES; if (_LOG_CTX.enabled()) { SetR(tmp_ret); } return tmp_ret; } while (0)\n')
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@ -209,21 +209,10 @@ namespace api {
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invoke_error_handler(err);
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}
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}
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char * context::mk_external_string(char const * str) {
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m_string_buffer = str?str:"";
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return const_cast<char *>(m_string_buffer.c_str());
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}
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char * context::mk_external_string(char const * str, unsigned n) {
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m_string_buffer.clear();
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m_string_buffer.append(str, n);
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return const_cast<char *>(m_string_buffer.c_str());
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}
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char * context::mk_external_string(std::string && str) {
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const char * context::mk_external_string(std::string && str) {
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m_string_buffer = std::move(str);
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return const_cast<char *>(m_string_buffer.c_str());
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return m_string_buffer.c_str();
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}
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expr * context::mk_numeral_core(rational const & n, sort * s) {
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@ -199,9 +199,7 @@ namespace api {
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// Store a copy of str in m_string_buffer, and return a reference to it.
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// This method is used to communicate local/internal strings with the "external world"
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char * mk_external_string(char const * str, unsigned n);
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char * mk_external_string(char const * str);
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char * mk_external_string(std::string && str);
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const char * mk_external_string(std::string && str);
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sbuffer<char> m_char_buffer;
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@ -559,7 +559,7 @@ extern "C" {
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param_descrs descrs;
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to_fixedpoint_ref(d)->collect_param_descrs(descrs);
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descrs.display(buffer);
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return mk_c(c)->mk_external_string(buffer.str());
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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@ -34,7 +34,7 @@ static mutex g_log_mux;
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#endif
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// functions called from api_log_macros.*
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void SetR(void * obj) {
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void SetR(const void * obj) {
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*g_z3_log << "= " << obj << '\n';
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}
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@ -217,20 +217,20 @@ extern "C" {
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if (mk_c(c)->fpautil().is_rm_numeral(to_expr(a), rm)) {
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switch (rm) {
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case MPF_ROUND_NEAREST_TEVEN:
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return mk_c(c)->mk_external_string("roundNearestTiesToEven");
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return "roundNearestTiesToEven";
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break;
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case MPF_ROUND_NEAREST_TAWAY:
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return mk_c(c)->mk_external_string("roundNearestTiesToAway");
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return "roundNearestTiesToAway";
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break;
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case MPF_ROUND_TOWARD_POSITIVE:
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return mk_c(c)->mk_external_string("roundTowardPositive");
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return "roundTowardPositive";
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break;
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case MPF_ROUND_TOWARD_NEGATIVE:
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return mk_c(c)->mk_external_string("roundTowardNegative");
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return "roundTowardNegative";
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break;
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case MPF_ROUND_TOWARD_ZERO:
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default:
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return mk_c(c)->mk_external_string("roundTowardZero");
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return "roundTowardZero";
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break;
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}
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}
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@ -313,7 +313,7 @@ extern "C" {
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param_descrs descrs;
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to_optimize_ptr(d)->collect_param_descrs(descrs);
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descrs.display(buffer);
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return mk_c(c)->mk_external_string(buffer.str());
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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@ -191,7 +191,7 @@ extern "C" {
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SET_ERROR_CODE(Z3_IOB, nullptr);
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RETURN_Z3(nullptr);
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}
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return mk_c(c)->mk_external_string(result);
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return result;
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Z3_CATCH_RETURN(nullptr);
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}
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@ -235,9 +235,9 @@ extern "C" {
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Z3_string Z3_API Z3_eval_smtlib2_string(Z3_context c, Z3_string str) {
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std::stringstream ous;
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Z3_TRY;
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RESET_ERROR_CODE();
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LOG_Z3_eval_smtlib2_string(c, str);
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Z3_TRY;
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if (!mk_c(c)->cmd()) {
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auto* ctx = alloc(cmd_context, false, &(mk_c(c)->m()));
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mk_c(c)->cmd() = ctx;
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@ -257,15 +257,13 @@ extern "C" {
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// See api::context::m_parser for a motivation about the reuse of the parser
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if (!parse_smt2_commands_with_parser(mk_c(c)->m_parser, *ctx.get(), is)) {
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SET_ERROR_CODE(Z3_PARSER_ERROR, ous.str());
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RETURN_Z3(mk_c(c)->mk_external_string(ous.str()));
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}
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}
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catch (z3_exception& e) {
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if (ous.str().empty()) ous << e.what();
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SET_ERROR_CODE(Z3_PARSER_ERROR, ous.str());
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RETURN_Z3(mk_c(c)->mk_external_string(ous.str()));
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}
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RETURN_Z3(mk_c(c)->mk_external_string(ous.str()));
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Z3_CATCH_RETURN(mk_c(c)->mk_external_string(ous.str()));
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Z3_CATCH_CORE();
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RETURN_Z3(mk_c(c)->mk_external_string(std::move(ous).str()));
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}
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}
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@ -274,7 +274,7 @@ extern "C" {
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reset_rcf_cancel(c);
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std::ostringstream buffer;
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rcfm(c).display(buffer, to_rcnumeral(a), compact, html);
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return mk_c(c)->mk_external_string(buffer.str());
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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@ -285,7 +285,7 @@ extern "C" {
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reset_rcf_cancel(c);
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std::ostringstream buffer;
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rcfm(c).display_decimal(buffer, to_rcnumeral(a), prec);
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return mk_c(c)->mk_external_string(buffer.str());
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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@ -339,7 +339,7 @@ extern "C" {
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SET_ERROR_CODE(Z3_IOB, nullptr);
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return "";
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}
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return mk_c(c)->mk_external_string(mk_c(c)->get_tactic(idx)->get_name().str().c_str());
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return mk_c(c)->mk_external_string(mk_c(c)->get_tactic(idx)->get_name().str());
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Z3_CATCH_RETURN("");
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}
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@ -359,7 +359,7 @@ extern "C" {
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SET_ERROR_CODE(Z3_IOB, nullptr);
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return "";
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}
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return mk_c(c)->mk_external_string(mk_c(c)->get_probe(idx)->get_name().str().c_str());
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return mk_c(c)->mk_external_string(mk_c(c)->get_probe(idx)->get_name().str());
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Z3_CATCH_RETURN("");
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}
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@ -371,7 +371,7 @@ extern "C" {
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param_descrs descrs;
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to_tactic_ref(t)->collect_param_descrs(descrs);
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descrs.display(buffer);
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return mk_c(c)->mk_external_string(buffer.str());
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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@ -499,8 +499,8 @@ extern "C" {
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for (unsigned i = 0; i < sz; i++) {
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to_apply_result(r)->m_subgoals[i]->display(buffer);
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}
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buffer << ")";
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return mk_c(c)->mk_external_string(buffer.str());
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buffer << ')';
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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@ -578,7 +578,7 @@ extern "C" {
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SET_ERROR_CODE(Z3_IOB, nullptr);
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return "";
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}
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return mk_c(c)->mk_external_string(mk_c(c)->get_simplifier(idx)->get_name().str().c_str());
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return mk_c(c)->mk_external_string(mk_c(c)->get_simplifier(idx)->get_name().str());
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Z3_CATCH_RETURN("");
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}
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@ -634,7 +634,7 @@ extern "C" {
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scoped_ptr<dependent_expr_simplifier> simp = (*to_simplifier_ref(t))(m, p, st);
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simp->collect_param_descrs(descrs);
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descrs.display(buffer);
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return mk_c(c)->mk_external_string(buffer.str());
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return mk_c(c)->mk_external_string(std::move(buffer).str());
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Z3_CATCH_RETURN("");
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}
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