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//: Allow mu programs to log facts just like we've been doing in C++ so far.
:(scenario trace)
recipe main [
trace [foo], [this is a trace in mu]
]
+foo: this is a trace in mu
:(before "End Primitive Recipe Declarations")
TRACE,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["trace"] = TRACE;
:(before "End Primitive Recipe Implementations")
case TRACE: {
if (SIZE(ingredients) != 2) {
raise << current_recipe_name() << ": 'trace' takes exactly two ingredients rather than '" << current_instruction().to_string() << "'\n" << end();
break;
}
assert(is_literal(current_instruction().ingredients.at(0)));
string label = current_instruction().ingredients.at(0).name;
assert(is_literal(current_instruction().ingredients.at(1)));
string message = current_instruction().ingredients.at(1).name;
trace(1, label) << message << end();
break;
}
:(before "End Primitive Recipe Declarations")
HIDE_WARNINGS,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["hide-warnings"] = HIDE_WARNINGS;
:(before "End Primitive Recipe Implementations")
case HIDE_WARNINGS: {
Hide_warnings = true;
break;
}
:(before "End Primitive Recipe Declarations")
SHOW_WARNINGS,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["show-warnings"] = SHOW_WARNINGS;
:(before "End Primitive Recipe Implementations")
case SHOW_WARNINGS: {
Hide_warnings = false;
break;
}
//: helpers for debugging
:(before "End Primitive Recipe Declarations")
_START_TRACING,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$start-tracing"] = _START_TRACING;
:(before "End Primitive Recipe Implementations")
case _START_TRACING: {
if (current_instruction().ingredients.empty())
Trace_stream->dump_layer = "all";
else
Trace_stream->dump_layer = current_instruction().ingredients.at(0).name;
//? cout << Trace_stream << ": " << Trace_stream->dump_layer << '\n'; //? 1
break;
}
:(before "End Primitive Recipe Declarations")
_STOP_TRACING,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$stop-tracing"] = _STOP_TRACING;
:(before "End Primitive Recipe Implementations")
case _STOP_TRACING: {
Trace_stream->dump_layer = "";
break;
}
:(before "End Primitive Recipe Declarations")
_CLOSE_TRACE,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$close-trace"] = _CLOSE_TRACE;
:(before "End Primitive Recipe Implementations")
case _CLOSE_TRACE: {
if (Trace_stream) {
delete Trace_stream;
Trace_stream = NULL;
}
break;
}
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