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<span class="Comment">//: Phase 3: Start running a loaded and transformed recipe.</span>
<span class="Comment">//:</span>
<span class="Comment">//: So far we've seen recipes as lists of instructions, and instructions point</span>
<span class="Comment">//: at other recipes. To kick things off mu needs to know how to run certain</span>
<span class="Comment">//: 'primitive' recipes. That will then give the ability to run recipes</span>
<span class="Comment">//: containing these primitives.</span>
<span class="Comment">//:</span>
<span class="Comment">//: This layer defines a skeleton with just two primitive recipes: IDLE which</span>
<span class="Comment">//: does nothing, and COPY, which can copy numbers from one memory location to</span>
<span class="Comment">//: another. Later layers will add more primitives.</span>
<span class="Delimiter">:(scenario copy_literal)</span>
def main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>
]
<span class="traceContains">+run: {1: "number"} <- copy {23: "literal"}</span>
<span class="traceContains">+mem: storing 23 in location 1</span>
<span class="Delimiter">:(scenario copy)</span>
def main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>:number
]
<span class="traceContains">+run: {2: "number"} <- copy {1: "number"}</span>
<span class="traceContains">+mem: location 1 is 23</span>
<span class="traceContains">+mem: storing 23 in location 2</span>
<span class="Delimiter">:(scenario copy_multiple)</span>
def main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span><span class="Delimiter">,</span> <span class="Constant">24</span>
]
<span class="traceContains">+mem: storing 23 in location 1</span>
<span class="traceContains">+mem: storing 24 in location 2</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// Book-keeping while running a recipe.</span>
<span class="Comment">//: Later layers will replace this to support running multiple routines at once.</span>
<span class="Normal">struct</span> routine <span class="Delimiter">{</span>
recipe_ordinal running_recipe<span class="Delimiter">;</span>
<span class="Normal">int</span> running_step_index<span class="Delimiter">;</span>
routine<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> :running_recipe<span class="Delimiter">(</span>r<span class="Delimiter">),</span> running_step_index<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
<span class="Normal">bool</span> completed<span class="Delimiter">()</span> <span class="Normal">const</span><span class="Delimiter">;</span>
<span class="Normal">const</span> vector<instruction>& steps<span class="Delimiter">()</span> <span class="Normal">const</span><span class="Delimiter">;</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(before "End Globals")</span>
routine* Current_routine = <span class="Constant">NULL</span><span class="Delimiter">;</span>
map<string<span class="Delimiter">,</span> <span class="Normal">int</span>> Instructions_running<span class="Delimiter">;</span>
map<string<span class="Delimiter">,</span> <span class="Normal">int</span>> Locations_read<span class="Delimiter">;</span>
map<string<span class="Delimiter">,</span> <span class="Normal">int</span>> Locations_read_by_instruction<span class="Delimiter">;</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> run<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
routine rr<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
Current_routine = &rr<span class="Delimiter">;</span>
run_current_routine<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> run_current_routine<span class="Delimiter">()</span>
<span class="Delimiter">{</span> <span class="Comment">// curly on a separate line, because later layers will modify function header</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>completed<span class="Delimiter">())</span> <span class="Comment">// later layers will modify condition</span>
<span class="Delimiter">{</span>
<span class="Comment">// Running One Instruction</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>is_label<span class="Delimiter">)</span> <span class="Delimiter">{</span> ++current_step_index<span class="Delimiter">();</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Delimiter">}</span>
trace<span class="Delimiter">(</span>Initial_callstack_depth + Trace_stream<span class="Delimiter">-></span>callstack_depth<span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> << end<span class="Delimiter">();</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"something wrote to location 0; this should never happen</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
put<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">// read all ingredients from memory, each potentially spanning multiple locations</span>
vector<vector<<span class="Normal">double</span>> > ingredients<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>should_copy_ingredients<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>read_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)));</span>
<span class="Delimiter">}</span>
<span class="Comment">// instructions below will write to 'products'</span>
vector<vector<<span class="Normal">double</span>> > products<span class="Delimiter">;</span>
<span class="Normal">switch</span> <span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>operation<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// Primitive Recipe Implementations</span>
<span class="Normal">case</span> COPY: <span class="Delimiter">{</span>
copy<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>products<span class="Delimiter">,</span> products<span class="Delimiter">.</span>begin<span class="Delimiter">()));</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Primitive Recipe Implementations</span>
<span class="Normal">default</span>: <span class="Delimiter">{</span>
cout << <span class="Constant">"not a primitive op: "</span> << current_instruction<span class="Delimiter">().</span>operation << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Comment">// Write Products of Instruction</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>products<span class="Delimiter">)</span> < SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">))</span> <span class="Delimiter">{</span>
raise << SIZE<span class="Delimiter">(</span>products<span class="Delimiter">)</span> << <span class="Constant">" vs "</span> << SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> << <span class="Constant">": failed to write to all products! "</span> << to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
write_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Write Products of Instruction</span>
<span class="Comment">// End Running One Instruction</span>
<span class="Normal">finish_instruction</span>:<span class="Delimiter">;</span>
++current_step_index<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">stop_running_current_routine</span>:<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> should_copy_ingredients<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Comment">// End should_copy_ingredients Special-cases</span>
<span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">//: Some helpers.</span>
<span class="Comment">//: We'll need to override these later as we change the definition of routine.</span>
<span class="Comment">//: Important that they return referrences into the routine.</span>
<span class="Normal">inline</span> <span class="Normal">int</span>& current_step_index<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> Current_routine<span class="Delimiter">-></span>running_step_index<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">const</span> string& current_recipe_name<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> Current_routine<span class="Delimiter">-></span>running_recipe<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">const</span> instruction& current_instruction<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> Current_routine<span class="Delimiter">-></span>running_recipe<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>running_step_index<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">bool</span> routine::completed<span class="Delimiter">()</span> <span class="Normal">const</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> running_step_index >= SIZE<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> running_recipe<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">const</span> vector<instruction>& routine::steps<span class="Delimiter">()</span> <span class="Normal">const</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> running_recipe<span class="Delimiter">).</span>steps<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: Startup flow</span>
<span class="Comment">//: Step 1: load all .mu files with numeric prefixes (in order)</span>
<span class="Delimiter">:(before "End Load Recipes")</span>
<span class="Comment">// Load .mu Core</span>
<span class="CommentedCode">//? Save_trace = true;</span>
<span class="CommentedCode">//? START_TRACING_UNTIL_END_OF_SCOPE;</span>
load_file_or_directory<span class="Delimiter">(</span><span class="Constant">"core.mu"</span><span class="Delimiter">);</span>
<span class="CommentedCode">//? DUMP("");</span>
<span class="CommentedCode">//? exit(0);</span>
<span class="Comment">//: Step 2: load any .mu files provided at the commandline</span>
<span class="Delimiter">:(before "End Commandline Parsing")</span>
<span class="Comment">// Check For .mu Files</span>
<span class="CommentedCode">//? START_TRACING_UNTIL_END_OF_SCOPE</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>argc > <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// skip argv[0]</span>
argv++<span class="Delimiter">;</span>
argc--<span class="Delimiter">;</span>
<span class="Comment">// ignore argv past '--'; that's commandline args for 'main'</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>argc > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>string<span class="Delimiter">(</span>*argv<span class="Delimiter">)</span> == <span class="Constant">"--"</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
load_file_or_directory<span class="Delimiter">(</span>*argv<span class="Delimiter">);</span>
--argc<span class="Delimiter">;</span>
++argv<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Run_tests<span class="Delimiter">)</span> Recipe<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">));</span>
<span class="Delimiter">}</span>
transform_all<span class="Delimiter">();</span>
<span class="CommentedCode">//? DUMP("");</span>
<span class="CommentedCode">//? exit(0);</span>
save_snapshots<span class="Delimiter">();</span>
<span class="Comment">//: Step 3: if we aren't running tests, locate a recipe called 'main' and</span>
<span class="Comment">//: start running it.</span>
<span class="Delimiter">:(before "End Main")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Run_tests && contains_key<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">)</span> && contains_key<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span class="Comment">// Running Main</span>
setup<span class="Delimiter">();</span>
<span class="CommentedCode">//? Save_trace = true;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Trace_main<span class="Delimiter">)</span> Trace_stream = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">9990</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"=== Starting to run"</span> << end<span class="Delimiter">();</span>
assert<span class="Delimiter">(</span>Num_calls_to_transform_all == <span class="Constant">1</span><span class="Delimiter">);</span>
run_main<span class="Delimiter">(</span>argc<span class="Delimiter">,</span> argv<span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Trace_main<span class="Delimiter">)</span> <span class="Normal">delete</span> Trace_stream<span class="Delimiter">,</span> Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
teardown<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> run_main<span class="Delimiter">(</span><span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span>
recipe_ordinal r = get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>r<span class="Delimiter">)</span> run<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">//: By default we don't maintain the trace while running main because its</span>
<span class="Comment">//: overheads can grow rapidly. However, it's useful when debugging.</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Normal">bool</span> Trace_main = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Commandline Options(*arg)")</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_equal<span class="Delimiter">(</span>*arg<span class="Delimiter">,</span> <span class="Constant">"--trace"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
Trace_main = <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> dump_profile<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">int</span>>::iterator p = Instructions_running<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Instructions_running<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cerr << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
cerr << <span class="Constant">"== locations read</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">int</span>>::iterator p = Locations_read<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Locations_read<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cerr << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
cerr << <span class="Constant">"== locations read by instruction</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">int</span>>::iterator p = Locations_read_by_instruction<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Locations_read_by_instruction<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
cerr << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End One-time Setup")</span>
<span class="CommentedCode">//? atexit(dump_profile);</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> cleanup_main<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Save_trace && Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ofstream fout<span class="Delimiter">(</span><span class="Constant">"interactive"</span><span class="Delimiter">);</span>
fout << Trace_stream<span class="Delimiter">-></span>readable_contents<span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span>
fout<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End One-time Setup")</span>
atexit<span class="Delimiter">(</span>cleanup_main<span class="Delimiter">);</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> load_file_or_directory<span class="Delimiter">(</span>string filename<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_directory<span class="Delimiter">(</span>filename<span class="Delimiter">))</span> <span class="Delimiter">{</span>
load_all<span class="Delimiter">(</span>filename<span class="Delimiter">);</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
ifstream fin<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"no such file '"</span> << filename << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
trace<span class="Delimiter">(</span><span class="Constant">9990</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"=== "</span> << filename << end<span class="Delimiter">();</span>
load<span class="Delimiter">(</span>fin<span class="Delimiter">);</span>
fin<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> is_directory<span class="Delimiter">(</span>string path<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">struct</span> stat info<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>stat<span class="Delimiter">(</span>path<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &info<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> <span class="Comment">// error</span>
<span class="Identifier">return</span> info<span class="Delimiter">.</span>st_mode & S_IFDIR<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> load_all<span class="Delimiter">(</span>string dir<span class="Delimiter">)</span> <span class="Delimiter">{</span>
dirent** files<span class="Delimiter">;</span>
<span class="Normal">int</span> num_files = scandir<span class="Delimiter">(</span>dir<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &files<span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">,</span> alphasort<span class="Delimiter">);</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < num_files<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
string curr_file = files[i]<span class="Delimiter">-></span>d_name<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>isdigit<span class="Delimiter">(</span>curr_file<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span>
load_file_or_directory<span class="Delimiter">(</span>dir+<span class="Constant">'/'</span>+curr_file<span class="Delimiter">);</span>
free<span class="Delimiter">(</span>files[i]<span class="Delimiter">);</span>
files[i] = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
free<span class="Delimiter">(</span>files<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Includes")</span>
<span class="PreProc">#include </span><span class="Constant"><dirent.h></span>
<span class="PreProc">#include </span><span class="Constant"><sys/stat.h></span>
<span class="SalientComment">//:: Reading from memory, writing to memory.</span>
<span class="Delimiter">:(code)</span>
vector<<span class="Normal">double</span>> read_memory<span class="Delimiter">(</span>reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// Begin Preprocess read_memory(x)</span>
vector<<span class="Normal">double</span>> result<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Delimiter">{</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>x<span class="Delimiter">.</span>value<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Preprocess read_memory(x)</span>
<span class="Normal">int</span> size = size_of<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> offset = <span class="Constant">0</span><span class="Delimiter">;</span> offset < size<span class="Delimiter">;</span> ++offset<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">double</span> val = get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> x<span class="Delimiter">.</span>value+offset<span class="Delimiter">);</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"location "</span> << x<span class="Delimiter">.</span>value+offset << <span class="Constant">" is "</span> << no_scientific<span class="Delimiter">(</span>val<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>val<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> write_memory<span class="Delimiter">(</span>reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> x<span class="Delimiter">,</span> <span class="Normal">const</span> vector<<span class="Normal">double</span>>& data<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>Current_routine<span class="Delimiter">);</span> <span class="Comment">// run-time only</span>
<span class="Comment">// Begin Preprocess write_memory(x, data)</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"can't write to '"</span> << to_string<span class="Delimiter">(</span>x<span class="Delimiter">)</span> << <span class="Constant">"'; no type</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Comment">// End Preprocess write_memory(x, data)</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>value == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"can't write to location 0 in '"</span> << to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>size_mismatch<span class="Delimiter">(</span>x<span class="Delimiter">,</span> data<span class="Delimiter">))</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> << <span class="Constant">"size mismatch in storing to '"</span> << x<span class="Delimiter">.</span>original_string << <span class="Constant">"' ("</span> << size_of<span class="Delimiter">(</span>x<span class="Delimiter">)</span> << <span class="Constant">" vs "</span> << SIZE<span class="Delimiter">(</span>data<span class="Delimiter">)</span> << <span class="Constant">") at '"</span> << to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// End write_memory(x) Special-cases</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> offset = <span class="Constant">0</span><span class="Delimiter">;</span> offset < SIZE<span class="Delimiter">(</span>data<span class="Delimiter">);</span> ++offset<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>x<span class="Delimiter">.</span>value+offset > <span class="Constant">0</span><span class="Delimiter">);</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"storing "</span> << no_scientific<span class="Delimiter">(</span>data<span class="Delimiter">.</span>at<span class="Delimiter">(</span>offset<span class="Delimiter">))</span> << <span class="Constant">" in location "</span> << x<span class="Delimiter">.</span>value+offset << end<span class="Delimiter">();</span>
put<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> x<span class="Delimiter">.</span>value+offset<span class="Delimiter">,</span> data<span class="Delimiter">.</span>at<span class="Delimiter">(</span>offset<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">int</span> size_of<span class="Delimiter">(</span><span class="Normal">const</span> reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!r<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Comment">// End size_of(reagent r) Cases</span>
<span class="Identifier">return</span> size_of<span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">int</span> size_of<span class="Delimiter">(</span><span class="Normal">const</span> type_tree* type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Comment">// End size_of(type) Cases</span>
<span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> size_mismatch<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">,</span> <span class="Normal">const</span> vector<<span class="Normal">double</span>>& data<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Comment">// End size_mismatch(x) Cases</span>
<span class="CommentedCode">//? if (size_of(x) != SIZE(data)) cerr << size_of(x) << " vs " << SIZE(data) << '\n';</span>
<span class="Identifier">return</span> size_of<span class="Delimiter">(</span>x<span class="Delimiter">)</span> != SIZE<span class="Delimiter">(</span>data<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">bool</span> is_literal<span class="Delimiter">(</span><span class="Normal">const</span> reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!r<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>value == <span class="Constant">0</span><span class="Delimiter">)</span>
assert<span class="Delimiter">(</span>!r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>left && !r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">);</span>
<span class="Identifier">return</span> r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>value == <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">bool</span> scalar<span class="Delimiter">(</span><span class="Normal">const</span> vector<<span class="Normal">int</span>>& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> SIZE<span class="Delimiter">(</span>x<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">inline</span> <span class="Normal">bool</span> scalar<span class="Delimiter">(</span><span class="Normal">const</span> vector<<span class="Normal">double</span>>& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> SIZE<span class="Delimiter">(</span>x<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// helper for tests</span>
<span class="Normal">void</span> run<span class="Delimiter">(</span><span class="Normal">const</span> string& form<span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<recipe_ordinal> tmp = load<span class="Delimiter">(</span>form<span class="Delimiter">);</span>
transform_all<span class="Delimiter">();</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"error"</span><span class="Delimiter">)</span> > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Comment">// if a test defines main, it probably wants to start there regardless of</span>
<span class="Comment">// definition order</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">)))</span>
run<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">));</span>
<span class="Normal">else</span>
run<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>front<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario run_label)</span>
def main [
+foo
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>:number
]
<span class="traceContains">+run: {1: "number"} <- copy {23: "literal"}</span>
<span class="traceContains">+run: {2: "number"} <- copy {1: "number"}</span>
<span class="traceAbsent">-run: +foo</span>
<span class="Delimiter">:(scenario run_dummy)</span>
def main [
_<span class="Special"> <- </span>copy <span class="Constant">0</span>
]
<span class="traceContains">+run: _ <- copy {0: "literal"}</span>
<span class="Delimiter">:(scenario write_to_0_disallowed)</span>
<span class="Special">% Hide_errors = true;</span>
def main [
<span class="Constant">0</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>
]
<span class="traceAbsent">-mem: storing 34 in location 0</span>
<span class="Comment">//: mu is robust to various combinations of commas and spaces. You just have</span>
<span class="Comment">//: to put spaces around the '<-'.</span>
<span class="Delimiter">:(scenario comma_without_space)</span>
def main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">2</span><span class="Delimiter">,</span><span class="Constant">2</span>
]
<span class="traceContains">+mem: storing 2 in location 1</span>
<span class="Delimiter">:(scenario space_without_comma)</span>
def main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">2</span> <span class="Constant">2</span>
]
<span class="traceContains">+mem: storing 2 in location 1</span>
<span class="Delimiter">:(scenario comma_before_space)</span>
def main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">2</span>
]
<span class="traceContains">+mem: storing 2 in location 1</span>
<span class="Delimiter">:(scenario comma_after_space)</span>
def main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">2</span> <span class="Delimiter">,</span><span class="Constant">2</span>
]
<span class="traceContains">+mem: storing 2 in location 1</span>
</pre>
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