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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;
}
:(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["$close-trace"] = _CLOSE_TRACE;
:(before "End Primitive Recipe Implementations")
case _CLOSE_TRACE: {
if (Trace_stream) {
delete Trace_stream;
Trace_stream = NULL;
}
break;
}
:(before "End Primitive Recipe Declarations")
_DUMP_TRACE,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$dump-trace"] = _DUMP_TRACE;
:(before "End Primitive Recipe Implementations")
case _DUMP_TRACE: {
if (ingredients.empty()) {
DUMP("");
}
else {
DUMP(current_instruction().ingredients.at(0).name);
}
break;
}
:(before "End Primitive Recipe Declarations")
_CLEAR_TRACE,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$clear-trace"] = _CLEAR_TRACE;
:(before "End Primitive Recipe Implementations")
case _CLEAR_TRACE: {
CLEAR_TRACE;
break;
}
//: assert: perform sanity checks at runtime
:(scenario assert)
% Hide_warnings = true; // '%' lines insert arbitrary C code into tests before calling 'run' with the lines below. Must be immediately after :(scenario) line.
recipe main [
assert 0, [this is an assert in mu]
]
+warn: this is an assert in mu
:(before "End Primitive Recipe Declarations")
ASSERT,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["assert"] = ASSERT;
:(before "End Primitive Recipe Implementations")
case ASSERT: {
if (SIZE(ingredients) != 2) {
raise << current_recipe_name() << ": 'assert' takes exactly two ingredients rather than '" << current_instruction().to_string() << "'\n" << end();
break;
}
if (!scalar(ingredients.at(0))) {
raise << current_recipe_name() << ": 'assert' requires a boolean for its first ingredient, but got " << current_instruction().ingredients.at(0).original_string << '\n' << end();
break;
}
if (!scalar(ingredients.at(1))) {
raise << current_recipe_name() << ": 'assert' requires a literal string for its second ingredient, but got " << current_instruction().ingredients.at(1).original_string << '\n' << end();
break;
}
if (!ingredients.at(0).at(0)) {
raise << current_instruction().ingredients.at(1).name << '\n' << end();
}
break;
}
//:: 'cheating' by using the host system
:(before "End Primitive Recipe Declarations")
_PRINT,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$print"] = _PRINT;
:(before "End Primitive Recipe Implementations")
case _PRINT: {
for (long long int i = 0; i < SIZE(ingredients); ++i) {
if (is_literal(current_instruction().ingredients.at(i))) {
trace(Primitive_recipe_depth, "run") << "$print: " << current_instruction().ingredients.at(i).name << end();
if (has_property(current_instruction().ingredients.at(i), "newline"))
cout << '\n';
else
cout << current_instruction().ingredients.at(i).name;
}
else {
for (long long int j = 0; j < SIZE(ingredients.at(i)); ++j) {
trace(Primitive_recipe_depth, "run") << "$print: " << ingredients.at(i).at(j) << end();
if (j > 0) cout << " ";
cout << ingredients.at(i).at(j);
}
}
}
break;
}
:(before "End Primitive Recipe Declarations")
_EXIT,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$exit"] = _EXIT;
:(before "End Primitive Recipe Implementations")
case _EXIT: {
exit(0);
break;
}
:(before "End Primitive Recipe Declarations")
_SYSTEM,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$system"] = _SYSTEM;
:(before "End Primitive Recipe Implementations")
case _SYSTEM: {
products.resize(1);
if (current_instruction().ingredients.empty()) {
raise << current_recipe_name() << ": '$system' requires exactly one ingredient, but got none\n" << end();
break;
}
int status = system(current_instruction().ingredients.at(0).name.c_str());
products.at(0).push_back(status);
break;
}
//:: helpers for debugging
:(before "End Primitive Recipe Declarations")
_DUMP_MEMORY,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["$dump-memory"] = _DUMP_MEMORY;
:(before "End Primitive Recipe Implementations")
case _DUMP_MEMORY: {
dump_memory();
break;
}
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