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authorKartik Agaram <vc@akkartik.com>2019-07-27 16:01:55 -0700
committerKartik Agaram <vc@akkartik.com>2019-07-27 17:47:59 -0700
commit6e1eeeebfb453fa7c871869c19375ce60fbd7413 (patch)
tree539c4a3fdf1756ae79770d5c4aaf6366f1d1525e /026call.cc
parent8846a7f85cc04b77b2fe8a67b6d317723437b00c (diff)
downloadmu-6e1eeeebfb453fa7c871869c19375ce60fbd7413.tar.gz
5485 - promote SubX to top-level
Diffstat (limited to '026call.cc')
-rw-r--r--026call.cc246
1 files changed, 0 insertions, 246 deletions
diff --git a/026call.cc b/026call.cc
deleted file mode 100644
index faa9455d..00000000
--- a/026call.cc
+++ /dev/null
@@ -1,246 +0,0 @@
-//: So far the recipes we define can't run each other. Let's fix that.
-
-void test_calling_recipe() {
-  run(
-      "def main [\n"
-      "  f\n"
-      "]\n"
-      "def f [\n"
-      "  3:num <- add 2, 2\n"
-      "]\n"
-  );
-  CHECK_TRACE_CONTENTS(
-      "mem: storing 4 in location 3\n"
-  );
-}
-
-void test_return_on_fallthrough() {
-  run(
-      "def main [\n"
-      "  f\n"
-      "  1:num <- copy 0\n"
-      "  2:num <- copy 0\n"
-      "  3:num <- copy 0\n"
-      "]\n"
-      "def f [\n"
-      "  4:num <- copy 0\n"
-      "  5:num <- copy 0\n"
-      "]\n"
-  );
-  CHECK_TRACE_CONTENTS(
-      "run: f\n"
-      "run: {4: \"number\"} <- copy {0: \"literal\"}\n"
-      "run: {5: \"number\"} <- copy {0: \"literal\"}\n"
-      "run: {1: \"number\"} <- copy {0: \"literal\"}\n"
-      "run: {2: \"number\"} <- copy {0: \"literal\"}\n"
-      "run: {3: \"number\"} <- copy {0: \"literal\"}\n"
-  );
-}
-
-:(before "struct routine {")
-// Everytime a recipe runs another, we interrupt it and start running the new
-// recipe. When that finishes, we continue this one where we left off.
-// This requires maintaining a 'stack' of interrupted recipes or 'calls'.
-struct call {
-  recipe_ordinal running_recipe;
-  int running_step_index;
-  // End call Fields
-  call(recipe_ordinal r) { clear(r, 0); }
-  call(recipe_ordinal r, int index) { clear(r, index); }
-  void clear(recipe_ordinal r, int index) {
-    running_recipe = r;
-    running_step_index = index;
-    // End call Constructor
-  }
-  ~call() {
-    // End call Destructor
-  }
-};
-typedef list<call> call_stack;
-
-:(replace{} "struct routine")
-struct routine {
-  call_stack calls;
-  // End routine Fields
-  routine(recipe_ordinal r);
-  bool completed() const;
-  const vector<instruction>& steps() const;
-};
-:(code)
-routine::routine(recipe_ordinal r) {
-  ++Callstack_depth;
-  trace(Callstack_depth+1, "trace") << "new routine; incrementing callstack depth to " << Callstack_depth << end();
-  assert(Callstack_depth < Max_depth);
-  calls.push_front(call(r));
-  // End routine Constructor
-}
-
-//:: now update routine's helpers
-
-//: macro versions for a slight speedup
-
-:(delete{} "int& current_step_index()")
-:(delete{} "recipe_ordinal currently_running_recipe()")
-:(delete{} "const string& current_recipe_name()")
-:(delete{} "const recipe& current_recipe()")
-:(delete{} "const instruction& current_instruction()")
-
-:(before "End Includes")
-#define current_call() Current_routine->calls.front()
-#define current_step_index() current_call().running_step_index
-#define currently_running_recipe() current_call().running_recipe
-#define current_recipe() get(Recipe, currently_running_recipe())
-#define current_recipe_name() current_recipe().name
-#define to_instruction(call) get(Recipe, (call).running_recipe).steps.at((call).running_step_index)
-#define current_instruction() to_instruction(current_call())
-
-//: function versions for debugging
-
-:(code)
-//? :(before "End Globals")
-//? bool Foo2 = false;
-//? :(code)
-//? call& current_call() {
-//?   if (Foo2) cerr << __FUNCTION__ << '\n';
-//?   return Current_routine->calls.front();
-//? }
-//? :(replace{} "int& current_step_index()")
-//? int& current_step_index() {
-//?   assert(!Current_routine->calls.empty());
-//?   if (Foo2) cerr << __FUNCTION__ << '\n';
-//?   return current_call().running_step_index;
-//? }
-//? :(replace{} "recipe_ordinal currently_running_recipe()")
-//? recipe_ordinal currently_running_recipe() {
-//?   assert(!Current_routine->calls.empty());
-//?   if (Foo2) cerr << __FUNCTION__ << '\n';
-//?   return current_call().running_recipe;
-//? }
-//? :(replace{} "const string& current_recipe_name()")
-//? const string& current_recipe_name() {
-//?   assert(!Current_routine->calls.empty());
-//?   if (Foo2) cerr << __FUNCTION__ << '\n';
-//?   return get(Recipe, current_call().running_recipe).name;
-//? }
-//? :(replace{} "const recipe& current_recipe()")
-//? const recipe& current_recipe() {
-//?   assert(!Current_routine->calls.empty());
-//?   if (Foo2) cerr << __FUNCTION__ << '\n';
-//?   return get(Recipe, current_call().running_recipe);
-//? }
-//? :(replace{} "const instruction& current_instruction()")
-//? const instruction& current_instruction() {
-//?   assert(!Current_routine->calls.empty());
-//?   if (Foo2) cerr << __FUNCTION__ << '\n';
-//?   return to_instruction(current_call());
-//? }
-//? :(code)
-//? const instruction& to_instruction(const call& call) {
-//?   return get(Recipe, call.running_recipe).steps.at(call.running_step_index);
-//? }
-
-:(code)
-void dump_callstack() {
-  if (!Current_routine) return;
-  if (Current_routine->calls.size() <= 1) return;
-  for (call_stack::const_iterator p = ++Current_routine->calls.begin();  p != Current_routine->calls.end();  ++p)
-    raise << "  called from " << get(Recipe, p->running_recipe).name << ": " << to_original_string(to_instruction(*p)) << '\n' << end();
-}
-
-:(after "Defined Recipe Checks")
-// not a primitive; check that it's present in the book of recipes
-if (!contains_key(Recipe, inst.operation)) {
-  raise << maybe(get(Recipe, r).name) << "undefined operation in '" << to_original_string(inst) << "'\n" << end();
-  break;
-}
-:(replace{} "default:" following "End Primitive Recipe Implementations")
-default: {
-  if (contains_key(Recipe, current_instruction().operation)) {  // error already raised in Checks above
-    // not a primitive; look up the book of recipes
-    ++Callstack_depth;
-    trace(Callstack_depth+1, "trace") << "incrementing callstack depth to " << Callstack_depth << end();
-    assert(Callstack_depth < Max_depth);
-    const call& caller_frame = current_call();
-    Current_routine->calls.push_front(call(to_instruction(caller_frame).operation));
-    finish_call_housekeeping(to_instruction(caller_frame), ingredients);
-    // not done with caller
-    write_products = false;
-    fall_through_to_next_instruction = false;
-    // End Non-primitive Call(caller_frame)
-  }
-}
-:(code)
-void finish_call_housekeeping(const instruction& call_instruction, const vector<vector<double> >& ingredients) {
-  // End Call Housekeeping
-}
-
-void test_calling_undefined_recipe_fails() {
-  Hide_errors = true;
-  run(
-      "def main [\n"
-      "  foo\n"
-      "]\n"
-  );
-  CHECK_TRACE_CONTENTS(
-      "error: main: undefined operation in 'foo'\n"
-  );
-}
-
-void test_calling_undefined_recipe_handles_missing_result() {
-  Hide_errors = true;
-  run(
-      "def main [\n"
-      "  x:num <- foo\n"
-      "]\n"
-  );
-  CHECK_TRACE_CONTENTS(
-      "error: main: undefined operation in 'x:num <- foo'\n"
-  );
-}
-
-//:: finally, we need to fix the termination conditions for the run loop
-
-:(replace{} "bool routine::completed() const")
-bool routine::completed() const {
-  return calls.empty();
-}
-
-:(replace{} "const vector<instruction>& routine::steps() const")
-const vector<instruction>& routine::steps() const {
-  assert(!calls.empty());
-  return get(Recipe, calls.front().running_recipe).steps;
-}
-
-:(after "Running One Instruction")
-// when we reach the end of one call, we may reach the end of the one below
-// it, and the one below that, and so on
-while (current_step_index() >= SIZE(Current_routine->steps())) {
-  // Falling Through End Of Recipe
-  trace(Callstack_depth+1, "trace") << "fall-through: exiting " << current_recipe_name() << "; decrementing callstack depth from " << Callstack_depth << end();
-  --Callstack_depth;
-  assert(Callstack_depth >= 0);
-  Current_routine->calls.pop_front();
-  if (Current_routine->calls.empty()) goto stop_running_current_routine;
-  // Complete Call Fallthrough
-  // todo: fail if no products returned
-  ++current_step_index();
-}
-
-:(before "End Primitive Recipe Declarations")
-_DUMP_CALL_STACK,
-:(before "End Primitive Recipe Numbers")
-put(Recipe_ordinal, "$dump-call-stack", _DUMP_CALL_STACK);
-:(before "End Primitive Recipe Checks")
-case _DUMP_CALL_STACK: {
-  break;
-}
-:(before "End Primitive Recipe Implementations")
-case _DUMP_CALL_STACK: {
-  dump(Current_routine->calls);
-  break;
-}
-:(code)
-void dump(const call_stack& calls) {
-  for (call_stack::const_reverse_iterator p = calls.rbegin(); p != calls.rend(); ++p)
-    cerr << get(Recipe, p->running_recipe).name << ":" << p->running_step_index << " -- " << to_string(to_instruction(*p)) << '\n';
-}