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Diffstat (limited to 'libbuild2/context.cxx')
| -rw-r--r-- | libbuild2/context.cxx | 1026 |
1 files changed, 1026 insertions, 0 deletions
diff --git a/libbuild2/context.cxx b/libbuild2/context.cxx new file mode 100644 index 0000000..d56abb3 --- /dev/null +++ b/libbuild2/context.cxx @@ -0,0 +1,1026 @@ +// file : libbuild2/context.cxx -*- C++ -*- +// copyright : Copyright (c) 2014-2019 Code Synthesis Ltd +// license : MIT; see accompanying LICENSE file + +#include <libbuild2/context.hxx> + +#include <sstream> +#include <exception> // uncaught_exception[s]() + +#include <libbuild2/rule.hxx> +#include <libbuild2/scope.hxx> +#include <libbuild2/target.hxx> +#include <libbuild2/diagnostics.hxx> + +#include <libbutl/ft/exception.hxx> // uncaught_exceptions + +// For command line variable parsing. +// +#include <libbuild2/token.hxx> +#include <libbuild2/lexer.hxx> +#include <libbuild2/parser.hxx> + +using namespace std; +using namespace butl; + +namespace build2 +{ + scheduler sched; + + run_phase phase; + phase_mutex phase_mutex::instance; + + size_t load_generation; + + bool phase_mutex:: + lock (run_phase p) + { + bool r; + + { + mlock l (m_); + bool u (lc_ == 0 && mc_ == 0 && ec_ == 0); // Unlocked. + + // Increment the counter. + // + condition_variable* v (nullptr); + switch (p) + { + case run_phase::load: lc_++; v = &lv_; break; + case run_phase::match: mc_++; v = &mv_; break; + case run_phase::execute: ec_++; v = &ev_; break; + } + + // If unlocked, switch directly to the new phase. Otherwise wait for the + // phase switch. Note that in the unlocked case we don't need to notify + // since there is nobody waiting (all counters are zero). + // + if (u) + { + phase = p; + r = !fail_; + } + else if (phase != p) + { + sched.deactivate (); + for (; phase != p; v->wait (l)) ; + r = !fail_; + l.unlock (); // Important: activate() can block. + sched.activate (); + } + else + r = !fail_; + } + + // In case of load, acquire the exclusive access mutex. + // + if (p == run_phase::load) + { + lm_.lock (); + r = !fail_; // Re-query. + } + + return r; + } + + void phase_mutex:: + unlock (run_phase p) + { + // In case of load, release the exclusive access mutex. + // + if (p == run_phase::load) + lm_.unlock (); + + { + mlock l (m_); + + // Decrement the counter and see if this phase has become unlocked. + // + bool u (false); + switch (p) + { + case run_phase::load: u = (--lc_ == 0); break; + case run_phase::match: u = (--mc_ == 0); break; + case run_phase::execute: u = (--ec_ == 0); break; + } + + // If the phase is unlocked, pick a new phase and notify the waiters. + // Note that we notify all load waiters so that they can all serialize + // behind the second-level mutex. + // + if (u) + { + condition_variable* v; + + if (lc_ != 0) {phase = run_phase::load; v = &lv_;} + else if (mc_ != 0) {phase = run_phase::match; v = &mv_;} + else if (ec_ != 0) {phase = run_phase::execute; v = &ev_;} + else {phase = run_phase::load; v = nullptr;} + + if (v != nullptr) + { + l.unlock (); + v->notify_all (); + } + } + } + } + + bool phase_mutex:: + relock (run_phase o, run_phase n) + { + // Pretty much a fused unlock/lock implementation except that we always + // switch into the new phase. + // + assert (o != n); + + bool r; + + if (o == run_phase::load) + lm_.unlock (); + + { + mlock l (m_); + bool u (false); + + switch (o) + { + case run_phase::load: u = (--lc_ == 0); break; + case run_phase::match: u = (--mc_ == 0); break; + case run_phase::execute: u = (--ec_ == 0); break; + } + + // Set if will be waiting or notifying others. + // + condition_variable* v (nullptr); + switch (n) + { + case run_phase::load: v = lc_++ != 0 || !u ? &lv_ : nullptr; break; + case run_phase::match: v = mc_++ != 0 || !u ? &mv_ : nullptr; break; + case run_phase::execute: v = ec_++ != 0 || !u ? &ev_ : nullptr; break; + } + + if (u) + { + phase = n; + r = !fail_; + + // Notify others that could be waiting for this phase. + // + if (v != nullptr) + { + l.unlock (); + v->notify_all (); + } + } + else // phase != n + { + sched.deactivate (); + for (; phase != n; v->wait (l)) ; + r = !fail_; + l.unlock (); // Important: activate() can block. + sched.activate (); + } + } + + if (n == run_phase::load) + { + lm_.lock (); + r = !fail_; // Re-query. + } + + return r; + } + + // C++17 deprecated uncaught_exception() so use uncaught_exceptions() if + // available. + // + static inline bool + uncaught_exception () + { +#ifdef __cpp_lib_uncaught_exceptions + return std::uncaught_exceptions () != 0; +#else + return std::uncaught_exception (); +#endif + } + + // phase_lock + // + static +#ifdef __cpp_thread_local + thread_local +#else + __thread +#endif + phase_lock* phase_lock_instance; + + phase_lock:: + phase_lock (run_phase p) + : p (p) + { + if (phase_lock* l = phase_lock_instance) + assert (l->p == p); + else + { + if (!phase_mutex::instance.lock (p)) + { + phase_mutex::instance.unlock (p); + throw failed (); + } + + phase_lock_instance = this; + + //text << this_thread::get_id () << " phase acquire " << p; + } + } + + phase_lock:: + ~phase_lock () + { + if (phase_lock_instance == this) + { + phase_lock_instance = nullptr; + phase_mutex::instance.unlock (p); + + //text << this_thread::get_id () << " phase release " << p; + } + } + + // phase_unlock + // + phase_unlock:: + phase_unlock (bool u) + : l (u ? phase_lock_instance : nullptr) + { + if (u) + { + phase_lock_instance = nullptr; + phase_mutex::instance.unlock (l->p); + + //text << this_thread::get_id () << " phase unlock " << l->p; + } + } + + phase_unlock:: + ~phase_unlock () noexcept (false) + { + if (l != nullptr) + { + bool r (phase_mutex::instance.lock (l->p)); + phase_lock_instance = l; + + // Fail unless we are already failing. Note that we keep the phase + // locked since there will be phase_lock down the stack to unlock it. + // + if (!r && !uncaught_exception ()) + throw failed (); + + //text << this_thread::get_id () << " phase lock " << l->p; + } + } + + // phase_switch + // + phase_switch:: + phase_switch (run_phase n) + : o (phase), n (n) + { + if (!phase_mutex::instance.relock (o, n)) + { + phase_mutex::instance.relock (n, o); + throw failed (); + } + + phase_lock_instance->p = n; + + if (n == run_phase::load) // Note: load lock is exclusive. + load_generation++; + + //text << this_thread::get_id () << " phase switch " << o << " " << n; + } + + phase_switch:: + ~phase_switch () noexcept (false) + { + // If we are coming off a failed load phase, mark the phase_mutex as + // failed to terminate all other threads since the build state may no + // longer be valid. + // + if (n == run_phase::load && uncaught_exception ()) + { + mlock l (phase_mutex::instance.m_); + phase_mutex::instance.fail_ = true; + } + + bool r (phase_mutex::instance.relock (n, o)); + phase_lock_instance->p = o; + + // Similar logic to ~phase_unlock(). + // + if (!r && !uncaught_exception ()) + throw failed (); + + //text << this_thread::get_id () << " phase restore " << n << " " << o; + } + + const variable* var_src_root; + const variable* var_out_root; + const variable* var_src_base; + const variable* var_out_base; + const variable* var_forwarded; + + const variable* var_project; + const variable* var_amalgamation; + const variable* var_subprojects; + const variable* var_version; + + const variable* var_project_url; + const variable* var_project_summary; + + const variable* var_import_target; + + const variable* var_clean; + const variable* var_backlink; + const variable* var_include; + + const char var_extension[10] = "extension"; + + const variable* var_build_meta_operation; + + string current_mname; + string current_oname; + + const meta_operation_info* current_mif; + const operation_info* current_inner_oif; + const operation_info* current_outer_oif; + size_t current_on; + execution_mode current_mode; + bool current_diag_noise; + + atomic_count dependency_count; + atomic_count target_count; + atomic_count skip_count; + + bool keep_going = false; + bool dry_run = false; + + void (*config_save_variable) (scope&, const variable&, uint64_t); + + const string& (*config_preprocess_create) (const variable_overrides&, + values&, + vector_view<opspec>&, + bool, + const location&); + + variable_overrides + reset (const strings& cmd_vars) + { + tracer trace ("reset"); + + // @@ Need to unload modules when we dynamically load them. + // + + l6 ([&]{trace << "resetting build state";}); + + auto& vp (variable_pool::instance); + auto& sm (scope_map::instance); + + variable_overrides vos; + + targets.clear (); + sm.clear (); + vp.clear (); + + // Reset meta/operation tables. Note that the order should match the id + // constants in <libbuild2/operation.hxx>. + // + meta_operation_table.clear (); + meta_operation_table.insert ("noop"); + meta_operation_table.insert ("perform"); + meta_operation_table.insert ("configure"); + meta_operation_table.insert ("disfigure"); + + if (config_preprocess_create != nullptr) + meta_operation_table.insert ( + meta_operation_data ("create", config_preprocess_create)); + + meta_operation_table.insert ("dist"); + meta_operation_table.insert ("info"); + + operation_table.clear (); + operation_table.insert ("default"); + operation_table.insert ("update"); + operation_table.insert ("clean"); + operation_table.insert ("test"); + operation_table.insert ("update-for-test"); + operation_table.insert ("install"); + operation_table.insert ("uninstall"); + operation_table.insert ("update-for-install"); + + // Create global scope. Note that the empty path is a prefix for any other + // path. See the comment in <libbutl/prefix-map.mxx> for details. + // + auto make_global_scope = [] () -> scope& + { + auto i (scope_map::instance.insert (dir_path ())); + scope& r (i->second); + r.out_path_ = &i->first; + global_scope = scope::global_ = &r; + return r; + }; + + scope& gs (make_global_scope ()); + + // Setup the global scope before parsing any variable overrides since they + // may reference these things. + // + + gs.assign<dir_path> ("build.work") = work; + gs.assign<dir_path> ("build.home") = home; + + // Build system driver process path. + // + gs.assign<process_path> ("build.path") = + process_path (nullptr, // Will be filled by value assignment. + path (argv0.recall_string ()), + path (argv0.effect)); + + // Build system verbosity level. + // + gs.assign<uint64_t> ("build.verbosity") = verb; + + // Build system version (similar to what we do in the version module + // except here we don't include package epoch/revision). + // + { + const standard_version& v (build_version); + + auto set = [&gs] (const char* var, auto val) + { + using T = decltype (val); + gs.assign (variable_pool::instance.insert<T> (var)) = move (val); + }; + + set ("build.version", v.string_project ()); + + set ("build.version.number", v.version); + set ("build.version.id", v.string_project_id ()); + + set ("build.version.major", uint64_t (v.major ())); + set ("build.version.minor", uint64_t (v.minor ())); + set ("build.version.patch", uint64_t (v.patch ())); + + optional<uint16_t> a (v.alpha ()); + optional<uint16_t> b (v.beta ()); + + set ("build.version.alpha", a.has_value ()); + set ("build.version.beta", b.has_value ()); + set ("build.version.pre_release", v.pre_release ().has_value ()); + set ("build.version.pre_release_string", v.string_pre_release ()); + set ("build.version.pre_release_number", uint64_t (a ? *a : b ? *b : 0)); + + set ("build.version.snapshot", v.snapshot ()); // bool + set ("build.version.snapshot_sn", v.snapshot_sn); // uint64 + set ("build.version.snapshot_id", v.snapshot_id); // string + set ("build.version.snapshot_string", v.string_snapshot ()); + + // Allow detection (for example, in tests) whether this is a staged + // toolchain. + // + // Note that it is either staged or public, without queued, since we do + // not re-package things during the queued-to-public transition. + // + set ("build.version.stage", LIBBUILD2_STAGE); + } + + // Enter the host information. Rather than jumping through hoops like + // config.guess, for now we are just going to use the compiler target we + // were built with. While it is not as precise (for example, a binary + // built for i686 might be running on x86_64), it is good enough of an + // approximation/fallback since most of the time we are interested in just + // the target class (e.g., linux, windows, macosx). + // + { + // Did the user ask us to use config.guess? + // + string orig (config_guess + ? run<string> (3, + *config_guess, + [](string& l, bool) {return move (l);}) + : BUILD2_HOST_TRIPLET); + + l5 ([&]{trace << "original host: '" << orig << "'";}); + + try + { + target_triplet t (orig); + + l5 ([&]{trace << "canonical host: '" << t.string () << "'; " + << "class: " << t.class_;}); + + // Also enter as build.host.{cpu,vendor,system,version,class} for + // convenience of access. + // + gs.assign<string> ("build.host.cpu") = t.cpu; + gs.assign<string> ("build.host.vendor") = t.vendor; + gs.assign<string> ("build.host.system") = t.system; + gs.assign<string> ("build.host.version") = t.version; + gs.assign<string> ("build.host.class") = t.class_; + + gs.assign<target_triplet> ("build.host") = move (t); + } + catch (const invalid_argument& e) + { + fail << "unable to parse build host '" << orig << "': " << e << + info << "consider using the --config-guess option"; + } + } + + // Register builtin target types. + // + { + target_type_map& t (gs.target_types); + + t.insert<file> (); + t.insert<alias> (); + t.insert<dir> (); + t.insert<fsdir> (); + t.insert<exe> (); + t.insert<doc> (); + t.insert<man> (); + t.insert<man1> (); + + { + auto& tt (t.insert<manifest> ()); + t.insert_file ("manifest", tt); + } + + { + auto& tt (t.insert<buildfile> ()); + t.insert_file ("buildfile", tt); + } + } + + // Parse and enter the command line variables. We do it before entering + // any other variables so that all the variables that are overriden are + // marked as such first. Then, as we enter variables, we can verify that + // the override is alowed. + // + for (size_t i (0); i != cmd_vars.size (); ++i) + { + const string& s (cmd_vars[i]); + + istringstream is (s); + is.exceptions (istringstream::failbit | istringstream::badbit); + + // Similar to buildspec we do "effective escaping" and only for ['"\$(] + // (basically what's necessary inside a double-quoted literal plus the + // single quote). + // + lexer l (is, path ("<cmdline>"), 1 /* line */, "\'\"\\$("); + + // At the buildfile level the scope-specific variable should be + // separated from the directory with a whitespace, for example: + // + // ./ foo=$bar + // + // However, requiring this for command line variables would be too + // inconvinient so we support both. + // + // We also have the optional visibility modifier as a first character of + // the variable name: + // + // ! - global + // % - project + // / - scope + // + // The last one clashes a bit with the directory prefix: + // + // ./ /foo=bar + // .//foo=bar + // + // But that's probably ok (the need for a scope-qualified override with + // scope visibility should be pretty rare). Note also that to set the + // value on the global scope we use !. + // + // And so the first token should be a word which can be either a + // variable name (potentially with the directory qualification) or just + // the directory, in which case it should be followed by another word + // (unqualified variable name). + // + token t (l.next ()); + + optional<dir_path> dir; + if (t.type == token_type::word) + { + string& v (t.value); + size_t p (path::traits_type::rfind_separator (v)); + + if (p != string::npos && p != 0) // If first then visibility. + { + if (p == v.size () - 1) + { + // Separate directory. + // + dir = dir_path (move (v)); + t = l.next (); + + // Target-specific overrides are not yet supported (and probably + // never will be; the beast is already complex enough). + // + if (t.type == token_type::colon) + fail << "'" << s << "' is a target-specific override" << + info << "use double '--' to treat this argument as buildspec"; + } + else + { + // Combined directory. + // + // If double separator (visibility marker), then keep the first in + // name. + // + if (p != 0 && path::traits_type::is_separator (v[p - 1])) + --p; + + dir = dir_path (t.value, 0, p + 1); // Include the separator. + t.value.erase (0, p + 1); // Erase the separator. + } + + if (dir->relative ()) + { + // Handle the special relative to base scope case (.../). + // + auto i (dir->begin ()); + + if (*i == "...") + dir = dir_path (++i, dir->end ()); // Note: can become empty. + else + dir->complete (); // Relative to CWD. + } + + if (dir->absolute ()) + dir->normalize (); + } + } + + token_type tt (l.next ().type); + + // The token should be the variable name followed by =, +=, or =+. + // + if (t.type != token_type::word || t.value.empty () || + (tt != token_type::assign && + tt != token_type::prepend && + tt != token_type::append)) + { + fail << "expected variable assignment instead of '" << s << "'" << + info << "use double '--' to treat this argument as buildspec"; + } + + // Take care of the visibility. Note that here we rely on the fact that + // none of these characters are lexer's name separators. + // + char c (t.value[0]); + + if (path::traits_type::is_separator (c)) + c = '/'; // Normalize. + + string n (t.value, c == '!' || c == '%' || c == '/' ? 1 : 0); + + if (c == '!' && dir) + fail << "scope-qualified global override of variable " << n; + + variable& var (const_cast<variable&> ( + vp.insert (n, true /* overridable */))); + + const variable* o; + { + variable_visibility v (c == '/' ? variable_visibility::scope : + c == '%' ? variable_visibility::project : + variable_visibility::normal); + + const char* k (tt == token_type::assign ? "__override" : + tt == token_type::append ? "__suffix" : "__prefix"); + + unique_ptr<variable> p ( + new variable { + n + '.' + to_string (i + 1) + '.' + k, + nullptr /* aliases */, + nullptr /* type */, + nullptr /* overrides */, + v}); + + // Back link. + // + p->aliases = p.get (); + if (var.overrides != nullptr) + swap (p->aliases, + const_cast<variable*> (var.overrides.get ())->aliases); + + // Forward link. + // + p->overrides = move (var.overrides); + var.overrides = move (p); + + o = var.overrides.get (); + } + + // Currently we expand project overrides in the global scope to keep + // things simple. Pass original variable for diagnostics. Use current + // working directory as pattern base. + // + parser p; + pair<value, token> r (p.parse_variable_value (l, gs, &work, var)); + + if (r.second.type != token_type::eos) + fail << "unexpected " << r.second << " in variable assignment " + << "'" << s << "'"; + + // Make sure the value is not typed. + // + if (r.first.type != nullptr) + fail << "typed override of variable " << n; + + // Global and absolute scope overrides we can enter directly. Project + // and relative scope ones will be entered by the caller for each + // amalgamation/project. + // + if (c == '!' || (dir && dir->absolute ())) + { + scope& s (c == '!' ? gs : sm.insert (*dir)->second); + + auto p (s.vars.insert (*o)); + assert (p.second); // Variable name is unique. + + value& v (p.first); + v = move (r.first); + } + else + vos.push_back ( + variable_override {var, *o, move (dir), move (r.first)}); + } + + // Enter builtin variables and patterns. + // + + // All config. variables are by default overridable. + // + vp.insert_pattern ("config.**", nullopt, true, nullopt, true, false); + + // file.cxx:import() (note that order is important; see insert_pattern()). + // + vp.insert_pattern<abs_dir_path> ( + "config.import.*", true, variable_visibility::normal, true); + vp.insert_pattern<path> ( + "config.import.**", true, variable_visibility::normal, true); + + // module.cxx:load_module(). + // + { + auto v_p (variable_visibility::project); + + vp.insert_pattern<bool> ("**.booted", false, v_p); + vp.insert_pattern<bool> ("**.loaded", false, v_p); + vp.insert_pattern<bool> ("**.configured", false, v_p); + } + + { + auto v_p (variable_visibility::project); + auto v_t (variable_visibility::target); + auto v_q (variable_visibility::prereq); + + var_src_root = &vp.insert<dir_path> ("src_root"); + var_out_root = &vp.insert<dir_path> ("out_root"); + var_src_base = &vp.insert<dir_path> ("src_base"); + var_out_base = &vp.insert<dir_path> ("out_base"); + + var_forwarded = &vp.insert<bool> ("forwarded", v_p); + + // Note that subprojects is not typed since the value requires + // pre-processing (see file.cxx). + // + var_project = &vp.insert<project_name> ("project", v_p); + var_amalgamation = &vp.insert<dir_path> ("amalgamation", v_p); + var_subprojects = &vp.insert ("subprojects", v_p); + var_version = &vp.insert<string> ("version", v_p); + + var_project_url = &vp.insert<string> ("project.url", v_p); + var_project_summary = &vp.insert<string> ("project.summary", v_p); + + var_import_target = &vp.insert<name> ("import.target"); + + var_clean = &vp.insert<bool> ("clean", v_t); + var_backlink = &vp.insert<string> ("backlink", v_t); + var_include = &vp.insert<string> ("include", v_q); + + vp.insert<string> (var_extension, v_t); + + // Backlink executables and (generated) documentation by default. + // + gs.target_vars[exe::static_type]["*"].assign (var_backlink) = "true"; + gs.target_vars[doc::static_type]["*"].assign (var_backlink) = "true"; + + var_build_meta_operation = &vp.insert<string> ("build.meta_operation"); + } + + // Register builtin rules. + // + { + rule_map& r (gs.rules); // Note: global scope! + + //@@ outer + r.insert<alias> (perform_id, 0, "alias", alias_rule::instance); + + r.insert<fsdir> (perform_update_id, "fsdir", fsdir_rule::instance); + r.insert<fsdir> (perform_clean_id, "fsdir", fsdir_rule::instance); + + r.insert<mtime_target> (perform_update_id, "file", file_rule::instance); + r.insert<mtime_target> (perform_clean_id, "file", file_rule::instance); + } + + return vos; + } + + dir_path + src_out (const dir_path& out, const scope& r) + { + assert (r.root ()); + return src_out (out, r.out_path (), r.src_path ()); + } + + dir_path + out_src (const dir_path& src, const scope& r) + { + assert (r.root ()); + return out_src (src, r.out_path (), r.src_path ()); + } + + dir_path + src_out (const dir_path& o, + const dir_path& out_root, const dir_path& src_root) + { + assert (o.sub (out_root)); + return src_root / o.leaf (out_root); + } + + dir_path + out_src (const dir_path& s, + const dir_path& out_root, const dir_path& src_root) + { + assert (s.sub (src_root)); + return out_root / s.leaf (src_root); + } + + // diag_do(), etc. + // + string + diag_do (const action&) + { + const meta_operation_info& m (*current_mif); + const operation_info& io (*current_inner_oif); + const operation_info* oo (current_outer_oif); + + string r; + + // perform(update(x)) -> "update x" + // configure(update(x)) -> "configure updating x" + // + if (m.name_do.empty ()) + r = io.name_do; + else + { + r = m.name_do; + + if (io.name_doing[0] != '\0') + { + r += ' '; + r += io.name_doing; + } + } + + if (oo != nullptr) + { + r += " (for "; + r += oo->name; + r += ')'; + } + + return r; + } + + void + diag_do (ostream& os, const action& a, const target& t) + { + os << diag_do (a) << ' ' << t; + } + + string + diag_doing (const action&) + { + const meta_operation_info& m (*current_mif); + const operation_info& io (*current_inner_oif); + const operation_info* oo (current_outer_oif); + + string r; + + // perform(update(x)) -> "updating x" + // configure(update(x)) -> "configuring updating x" + // + if (!m.name_doing.empty ()) + r = m.name_doing; + + if (io.name_doing[0] != '\0') + { + if (!r.empty ()) r += ' '; + r += io.name_doing; + } + + if (oo != nullptr) + { + r += " (for "; + r += oo->name; + r += ')'; + } + + return r; + } + + void + diag_doing (ostream& os, const action& a, const target& t) + { + os << diag_doing (a) << ' ' << t; + } + + string + diag_did (const action&) + { + const meta_operation_info& m (*current_mif); + const operation_info& io (*current_inner_oif); + const operation_info* oo (current_outer_oif); + + string r; + + // perform(update(x)) -> "updated x" + // configure(update(x)) -> "configured updating x" + // + if (!m.name_did.empty ()) + { + r = m.name_did; + + if (io.name_doing[0] != '\0') + { + r += ' '; + r += io.name_doing; + } + } + else + r += io.name_did; + + if (oo != nullptr) + { + r += " (for "; + r += oo->name; + r += ')'; + } + + return r; + } + + void + diag_did (ostream& os, const action& a, const target& t) + { + os << diag_did (a) << ' ' << t; + } + + void + diag_done (ostream& os, const action&, const target& t) + { + const meta_operation_info& m (*current_mif); + const operation_info& io (*current_inner_oif); + const operation_info* oo (current_outer_oif); + + // perform(update(x)) -> "x is up to date" + // configure(update(x)) -> "updating x is configured" + // + if (m.name_done.empty ()) + { + os << t; + + if (io.name_done[0] != '\0') + os << ' ' << io.name_done; + + if (oo != nullptr) + os << " (for " << oo->name << ')'; + } + else + { + if (io.name_doing[0] != '\0') + os << io.name_doing << ' '; + + if (oo != nullptr) + os << "(for " << oo->name << ") "; + + os << t << ' ' << m.name_done; + } + } +} |