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Console

   (X) #0   09/12/06  console commands
   (X) #1   09/12/06  quick find
   (X) #2   09/12/06  open with
   (X) #4   09/12/06  history for console
   (X) #13  09/12/27  display docstring of a command


General

   ( ) #3   09/12/06  MVC for widgets
   (X) #5   09/12/06  move code from fm into objects
   (X) #6   09/12/06  move main to __init__
   (X) #7   09/12/06  cooler titlebar
   (X) #8   09/12/17  Add operations to modify files/directories
   (X) #9   09/12/24  add a widget for managing running operations
   (X) #10  09/12/24  sorting
   (X) #11  09/12/27  filter
   (X) #12  09/12/27  jump through the list in a specific order
   ( ) #14  09/12/29  make filelists inherit from pagers
   ( ) #15  09/12/29  better way of running processes!!~
href='#n206'>206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449
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<pre id='vimCodeElement'>
<span class="Comment">//: Containers contain a fixed number of elements of different types.</span>

<span class="Delimiter">:(before &quot;End Mu Types Initialization&quot;)</span>
<span class="Comment">//: We'll use this container as a running example, with two number elements.</span>
type_number point = Type_number[<span class="Constant">&quot;point&quot;</span>] = Next_type_number++<span class="Delimiter">;</span>
Type[point]<span class="Delimiter">.</span>size = <span class="Constant">2</span><span class="Delimiter">;</span>
Type[point]<span class="Delimiter">.</span>kind = container<span class="Delimiter">;</span>
Type[point]<span class="Delimiter">.</span>name = <span class="Constant">&quot;point&quot;</span><span class="Delimiter">;</span>
vector&lt;type_number&gt; i<span class="Delimiter">;</span>
i<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>number<span class="Delimiter">);</span>
Type[point]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
Type[point]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>i<span class="Delimiter">);</span>

<span class="Comment">//: Containers can be copied around with a single instruction just like</span>
<span class="Comment">//: numbers, no matter how large they are.</span>

<span class="Comment">//: Tests in this layer often explicitly setup memory before reading it as a</span>
<span class="Comment">//: container. Don't do this in general. I'm tagging exceptions with /raw to</span>
<span class="Comment">//: avoid warnings.</span>
<span class="Delimiter">:(scenario copy_multiple_locations)</span>
recipe main [
  <span class="Constant">1</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">2</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">3</span>:point<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>:point/<span class="Special">raw</span>  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 34 in location 3</span>
<span class="traceContains">+mem: storing 35 in location 4</span>

<span class="Delimiter">:(before &quot;End Mu Types Initialization&quot;)</span>
<span class="Comment">// A more complex container, containing another container as one of its</span>
<span class="Comment">// elements.</span>
type_number point_number = Type_number[<span class="Constant">&quot;point-number&quot;</span>] = Next_type_number++<span class="Delimiter">;</span>
Type[point_number]<span class="Delimiter">.</span>size = <span class="Constant">2</span><span class="Delimiter">;</span>
Type[point_number]<span class="Delimiter">.</span>kind = container<span class="Delimiter">;</span>
Type[point_number]<span class="Delimiter">.</span>name = <span class="Constant">&quot;point-number&quot;</span><span class="Delimiter">;</span>
vector&lt;type_number&gt; p2<span class="Delimiter">;</span>
p2<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>point<span class="Delimiter">);</span>
Type[point_number]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>p2<span class="Delimiter">);</span>
vector&lt;type_number&gt; i2<span class="Delimiter">;</span>
i2<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>number<span class="Delimiter">);</span>
Type[point_number]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>i2<span class="Delimiter">);</span>

<span class="Delimiter">:(scenario copy_handles_nested_container_elements)</span>
recipe main [
  <span class="Constant">12</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">13</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">14</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">36</span>:literal
  <span class="Constant">15</span>:point-number<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>:point-number/<span class="Special">raw</span>  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 36 in location 17</span>

<span class="Comment">//: Containers can be checked for equality with a single instruction just like</span>
<span class="Comment">//: numbers, no matter how large they are.</span>

<span class="Delimiter">:(scenario compare_multiple_locations)</span>
recipe main [
  <span class="Constant">1</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal  <span class="Comment"># first</span>
  <span class="Constant">2</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">3</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">36</span>:literal
  <span class="Constant">4</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal  <span class="Comment"># second</span>
  <span class="Constant">5</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">6</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">36</span>:literal
  <span class="Constant">7</span>:boolean<span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:point-number/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">4</span>:point-number/<span class="Special">raw</span>  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 1 in location 7</span>

<span class="Delimiter">:(scenario compare_multiple_locations2)</span>
recipe main [
  <span class="Constant">1</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal  <span class="Comment"># first</span>
  <span class="Constant">2</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">3</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">36</span>:literal
  <span class="Constant">4</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal  <span class="Comment"># second</span>
  <span class="Constant">5</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">6</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">37</span>:literal  <span class="Comment"># different</span>
  <span class="Constant">7</span>:boolean<span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:point-number/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">4</span>:point-number/<span class="Special">raw</span>  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 0 in location 7</span>

<span class="Delimiter">:(before &quot;End size_of(types) Cases&quot;)</span>
type_info t = Type[types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>]<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>t<span class="Delimiter">.</span>kind == container<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  <span class="Comment">// size of a container is the sum of the sizes of its elements</span>
  long long int result = <span class="Constant">0</span><span class="Delimiter">;</span>
  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>t<span class="Delimiter">.</span>elements<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    <span class="Comment">// todo: strengthen assertion to disallow mutual type recursion</span>
    assert<span class="Delimiter">(</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> != t<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
    result += size_of<span class="Delimiter">(</span>t<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
  <span class="Delimiter">}</span>
  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="SalientComment">//:: To access elements of a container, use 'get'</span>
<span class="Delimiter">:(scenario get)</span>
recipe main [
  <span class="Constant">12</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">13</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">15</span>:number<span class="Special"> &lt;- </span>get <span class="Constant">12</span>:point/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">1</span>:offset  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 35 in location 15</span>

<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
GET<span class="Delimiter">,</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
Recipe_number[<span class="Constant">&quot;get&quot;</span>] = GET<span class="Delimiter">;</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
case GET: <span class="Delimiter">{</span>
  reagent base = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  long long int base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
  type_number base_type = base<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  if <span class="Delimiter">(</span>Type[base_type]<span class="Delimiter">.</span>kind != container<span class="Delimiter">)</span>
    raise &lt;&lt; <span class="Constant">&quot;'get' on a non-container in &quot;</span> &lt;&lt; current_recipe_name <span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">()</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; die<span class="Delimiter">();</span>
  assert<span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)));</span>
  assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)));</span>
  long long int offset = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  long long int src = base_address<span class="Delimiter">;</span>
  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; offset<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    src += size_of<span class="Delimiter">(</span>Type[base_type]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
  <span class="Delimiter">}</span>
  trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;address to copy is &quot;</span> &lt;&lt; src<span class="Delimiter">;</span>
  assert<span class="Delimiter">(</span>Type[base_type]<span class="Delimiter">.</span>kind == container<span class="Delimiter">);</span>
  assert<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>Type[base_type]<span class="Delimiter">.</span>elements<span class="Delimiter">)</span> &gt; offset<span class="Delimiter">);</span>
  type_number src_type = Type[base_type]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>offset<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;its type is &quot;</span> &lt;&lt; Type[src_type]<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
  reagent tmp<span class="Delimiter">;</span>
  tmp<span class="Delimiter">.</span>set_value<span class="Delimiter">(</span>src<span class="Delimiter">);</span>
  tmp<span class="Delimiter">.</span>types<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>src_type<span class="Delimiter">);</span>
  products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>read_memory<span class="Delimiter">(</span>tmp<span class="Delimiter">));</span>
  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(scenario get_handles_nested_container_elements)</span>
recipe main [
  <span class="Constant">12</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">13</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">14</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">36</span>:literal
  <span class="Constant">15</span>:number<span class="Special"> &lt;- </span>get <span class="Constant">12</span>:point-number/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">1</span>:offset  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 36 in location 15</span>

<span class="SalientComment">//:: To write to elements of containers, you need their address.</span>

<span class="Delimiter">:(scenario get_address)</span>
recipe main [
  <span class="Constant">12</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">13</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Constant">15</span>:address:number<span class="Special"> &lt;- </span>get-address <span class="Constant">12</span>:point/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">1</span>:offset  <span class="Comment"># unsafe</span>
]
<span class="traceContains">+mem: storing 13 in location 15</span>

<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
GET_ADDRESS<span class="Delimiter">,</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
Recipe_number[<span class="Constant">&quot;get-address&quot;</span>] = GET_ADDRESS<span class="Delimiter">;</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
case GET_ADDRESS: <span class="Delimiter">{</span>
  reagent base = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  long long int base_address = base<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
  type_number base_type = base<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  if <span class="Delimiter">(</span>Type[base_type]<span class="Delimiter">.</span>kind != container<span class="Delimiter">)</span>
    raise &lt;&lt; <span class="Constant">&quot;'get' on a non-container in &quot;</span> &lt;&lt; current_recipe_name <span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">()</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; die<span class="Delimiter">();</span>
  assert<span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)));</span>
  assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)));</span>
  long long int offset = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
  long long int result = base_address<span class="Delimiter">;</span>
  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; offset<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    result += size_of<span class="Delimiter">(</span>Type[base_type]<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
  <span class="Delimiter">}</span>
  trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;address to copy is &quot;</span> &lt;&lt; result<span class="Delimiter">;</span>
  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="SalientComment">//:: Allow containers to be defined in mu code.</span>

<span class="Delimiter">:(scenarios load)</span>
<span class="Delimiter">:(scenario container)</span>
container foo [
  x:number
  y:number
]
<span class="traceContains">+parse: reading container foo</span>
<span class="traceContains">+parse:   element name: x</span>
<span class="traceContains">+parse:   type: 1</span>
<span class="traceContains">+parse:   element name: y</span>
<span class="traceContains">+parse:   type: 1</span>

<span class="Delimiter">:(scenario container_use_before_definition)</span>
container foo [
  x:number
  y:bar
]

container bar [
  x:number
  y:number
]
<span class="traceContains">+parse: reading container foo</span>
<span class="traceContains">+parse: type number: 1000</span>
<span class="traceContains">+parse:   element name: x</span>
<span class="traceContains">+parse:   type: 1</span>
<span class="traceContains">+parse:   element name: y</span>
<span class="traceContains">+parse:   type: 1001</span>
<span class="traceContains">+parse: reading container bar</span>
<span class="traceContains">+parse: type number: 1001</span>

<span class="Delimiter">:(before &quot;End Command Handlers&quot;)</span>
else if <span class="Delimiter">(</span>command == <span class="Constant">&quot;container&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
  insert_container<span class="Delimiter">(</span>command<span class="Delimiter">,</span> container<span class="Delimiter">,</span> in<span class="Delimiter">);</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(code)</span>
void insert_container<span class="Delimiter">(</span>const string&amp; command<span class="Delimiter">,</span> kind_of_type kind<span class="Delimiter">,</span> istream&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  skip_whitespace<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
  string name = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;reading &quot;</span> &lt;&lt; command &lt;&lt; <span class="Constant">' '</span> &lt;&lt; name<span class="Delimiter">;</span>
<span class="CommentedCode">//?   cout &lt;&lt; name &lt;&lt; '\n'; //? 2</span>
<span class="CommentedCode">//?   if (Type_number.find(name) != Type_number.end()) //? 1</span>
<span class="CommentedCode">//?     cerr &lt;&lt; Type_number[name] &lt;&lt; '\n'; //? 1</span>
  if <span class="Delimiter">(</span>Type_number<span class="Delimiter">.</span>find<span class="Delimiter">(</span>name<span class="Delimiter">)</span> == Type_number<span class="Delimiter">.</span>end<span class="Delimiter">()</span>
      || Type_number[name] == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
    Type_number[name] = Next_type_number++<span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
  trace<span class="Delimiter">(</span><span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type number: &quot;</span> &lt;&lt; Type_number[name]<span class="Delimiter">;</span>
  skip_bracket<span class="Delimiter">(</span>in<span class="Delimiter">,</span> <span class="Constant">&quot;'container' must begin with '['&quot;</span><span class="Delimiter">);</span>
  type_info&amp; t = Type[Type_number[name]]<span class="Delimiter">;</span>
  recently_added_types<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Type_number[name]<span class="Delimiter">);</span>
  t<span class="Delimiter">.</span>name = name<span class="Delimiter">;</span>
  t<span class="Delimiter">.</span>kind = kind<span class="Delimiter">;</span>
  while <span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span>
    skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
    string element = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
    if <span class="Delimiter">(</span>element == <span class="Constant">&quot;]&quot;</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
    istringstream inner<span class="Delimiter">(</span>element<span class="Delimiter">);</span>
    t<span class="Delimiter">.</span>element_names<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>slurp_until<span class="Delimiter">(</span>inner<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">));</span>
    trace<span class="Delimiter">(</span><span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;  element name: &quot;</span> &lt;&lt; t<span class="Delimiter">.</span>element_names<span class="Delimiter">.</span>back<span class="Delimiter">();</span>
    vector&lt;type_number&gt; types<span class="Delimiter">;</span>
    while <span class="Delimiter">(</span>!inner<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span>
      string type_name = slurp_until<span class="Delimiter">(</span>inner<span class="Delimiter">,</span> <span class="Constant">':'</span><span class="Delimiter">);</span>
      if <span class="Delimiter">(</span>Type_number<span class="Delimiter">.</span>find<span class="Delimiter">(</span>type_name<span class="Delimiter">)</span> == Type_number<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//?         cerr &lt;&lt; type_name &lt;&lt; &quot; is &quot; &lt;&lt; Next_type_number &lt;&lt; '\n'; //? 1</span>
        Type_number[type_name] = Next_type_number++<span class="Delimiter">;</span>
      <span class="Delimiter">}</span>
      types<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Type_number[type_name]<span class="Delimiter">);</span>
      trace<span class="Delimiter">(</span><span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;  type: &quot;</span> &lt;&lt; types<span class="Delimiter">.</span>back<span class="Delimiter">();</span>
    <span class="Delimiter">}</span>
    t<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>types<span class="Delimiter">);</span>
  <span class="Delimiter">}</span>
  assert<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>t<span class="Delimiter">.</span>elements<span class="Delimiter">)</span> == SIZE<span class="Delimiter">(</span>t<span class="Delimiter">.</span>element_names<span class="Delimiter">));</span>
  t<span class="Delimiter">.</span>size = SIZE<span class="Delimiter">(</span>t<span class="Delimiter">.</span>elements<span class="Delimiter">);</span>
<span class="Delimiter">}</span>

<span class="Comment">//: ensure types created in one scenario don't leak outside it.</span>
<span class="Delimiter">:(before &quot;End Globals&quot;)</span>
vector&lt;type_number&gt; recently_added_types<span class="Delimiter">;</span>
<span class="Delimiter">:(before &quot;End load_permanently&quot;)</span>  <span class="Comment">//: for non-tests</span>
recently_added_types<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Delimiter">:(before &quot;End Setup&quot;)</span>  <span class="Comment">//: for tests</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>recently_added_types<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//?   cout &lt;&lt; &quot;erasing &quot; &lt;&lt; Type[recently_added_types.at(i)].name &lt;&lt; '\n'; //? 1</span>
  Type_number<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>Type[recently_added_types<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span>]<span class="Delimiter">.</span>name<span class="Delimiter">);</span>
  Type<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>recently_added_types<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
recently_added_types<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Comment">// delete recent type references</span>
<span class="Comment">// can't rely on recently_added_types to cleanup Type_number, because of deliberately misbehaving tests with references to undefined types</span>
map&lt;string<span class="Delimiter">,</span> type_number&gt;::iterator p = Type_number<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>
while<span class="Delimiter">(</span>p != Type_number<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
  <span class="Comment">// save current item</span>
  string name = p<span class="Delimiter">-&gt;</span>first<span class="Delimiter">;</span>
  type_number t = p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">;</span>
  <span class="Comment">// increment iterator</span>
  ++p<span class="Delimiter">;</span>
  <span class="Comment">// now delete current item if necessary</span>
  if <span class="Delimiter">(</span>t &gt;= <span class="Constant">1000</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//?     cerr &lt;&lt; &quot;AAA &quot; &lt;&lt; name &lt;&lt; &quot; &quot; &lt;&lt; t &lt;&lt; '\n'; //? 1</span>
    Type_number<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>name<span class="Delimiter">);</span>
  <span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Comment">//: lastly, ensure scenarios are consistent by always starting them at the</span>
<span class="Comment">//: same type number.</span>
Next_type_number = <span class="Constant">1000</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before &quot;End Test Run Initialization&quot;)</span>
assert<span class="Delimiter">(</span>Next_type_number &lt; <span class="Constant">1000</span><span class="Delimiter">);</span>
<span class="Delimiter">:(before &quot;End Setup&quot;)</span>
Next_type_number = <span class="Constant">1000</span><span class="Delimiter">;</span>

<span class="SalientComment">//:: Allow container definitions anywhere in the codebase, but warn if you</span>
<span class="SalientComment">//:: can't find a definition.</span>

<span class="Delimiter">:(scenarios run)</span>
<span class="Delimiter">:(scenario run_warns_on_unknown_types)</span>
<span class="Special">% Hide_warnings = true;</span>
<span class="CommentedCode">#? % Trace_stream-&gt;dump_layer = &quot;run&quot;;</span>
recipe main [
  <span class="Comment"># integer is not a type</span>
  <span class="Constant">1</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>:literal
]
<span class="traceContains">+warn: unknown type: integer</span>

<span class="Delimiter">:(scenario run_allows_type_definition_after_use)</span>
<span class="Special">% Hide_warnings = true;</span>
recipe main [
  <span class="Constant">1</span>:bar<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>:literal
]

container bar [
  x:number
]
<span class="traceAbsent">-warn: unknown type: bar</span>
$warn: <span class="Constant">0</span>

<span class="Delimiter">:(after &quot;int main&quot;)</span>
  Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_invalid_types<span class="Delimiter">);</span>

<span class="Delimiter">:(code)</span>
void check_invalid_types<span class="Delimiter">(</span>const recipe_number r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  for <span class="Delimiter">(</span>long long int index = <span class="Constant">0</span><span class="Delimiter">;</span> index &lt; SIZE<span class="Delimiter">(</span>Recipe[r]<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    const instruction&amp; inst = Recipe[r]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
    for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
      check_invalid_types<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
    <span class="Delimiter">}</span>
    for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
      check_invalid_types<span class="Delimiter">(</span>inst<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="Delimiter">}</span>
<span class="Delimiter">}</span>

void check_invalid_types<span class="Delimiter">(</span>const reagent&amp; r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>r<span class="Delimiter">.</span>types<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    if <span class="Delimiter">(</span>r<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
    if <span class="Delimiter">(</span>Type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>r<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> == Type<span class="Delimiter">.</span>end<span class="Delimiter">())</span>
      raise &lt;&lt; <span class="Constant">&quot;unknown type: &quot;</span> &lt;&lt; r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(scenario container_unknown_field)</span>
<span class="Special">% Hide_warnings = true;</span>
container foo [
  x:number
  y:bar
]
<span class="traceContains">+warn: unknown type for field y in foo</span>

<span class="Delimiter">:(scenario read_container_with_bracket_in_comment)</span>
container foo [
  x:number
  <span class="Comment"># ']' in comment</span>
  y:number
]
<span class="traceContains">+parse: reading container foo</span>
<span class="traceContains">+parse:   element name: x</span>
<span class="traceContains">+parse:   type: 1</span>
<span class="traceContains">+parse:   element name: y</span>
<span class="traceContains">+parse:   type: 1</span>

<span class="Delimiter">:(before &quot;End Load Sanity Checks&quot;)</span>
check_container_field_types<span class="Delimiter">();</span>

<span class="Delimiter">:(code)</span>
void check_container_field_types<span class="Delimiter">()</span> <span class="Delimiter">{</span>
  for <span class="Delimiter">(</span>map&lt;type_number<span class="Delimiter">,</span> type_info&gt;::iterator p = Type<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Type<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
    const type_info&amp; info = p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">;</span>
<span class="CommentedCode">//?     cerr &lt;&lt; &quot;checking &quot; &lt;&lt; p-&gt;first &lt;&lt; '\n'; //? 1</span>
    for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>info<span class="Delimiter">.</span>elements<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
      for <span class="Delimiter">(</span>long long int j = <span class="Constant">0</span><span class="Delimiter">;</span> j &lt; SIZE<span class="Delimiter">(</span>info<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span>
        if <span class="Delimiter">(</span>info<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
        if <span class="Delimiter">(</span>Type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>info<span class="Delimiter">.</span>elements<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span>j<span class="Delimiter">))</span> == Type<span class="Delimiter">.</span>end<span class="Delimiter">())</span>
          raise &lt;&lt; <span class="Constant">&quot;unknown type for field &quot;</span> &lt;&lt; info<span class="Delimiter">.</span>element_names<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; in &quot;</span> &lt;&lt; info<span class="Delimiter">.</span>name &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
      <span class="Delimiter">}</span>
    <span class="Delimiter">}</span>
  <span class="Delimiter">}</span>
<span class="Delimiter">}</span>

<span class="SalientComment">//:: Construct types out of their constituent fields. Doesn't currently do</span>
<span class="SalientComment">//:: type-checking but *does* match sizes.</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
MERGE<span class="Delimiter">,</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
Recipe_number[<span class="Constant">&quot;merge&quot;</span>] = MERGE<span class="Delimiter">;</span>
<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
case MERGE: <span class="Delimiter">{</span>
  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
    for <span class="Delimiter">(</span>long long int j = <span class="Constant">0</span><span class="Delimiter">;</span> j &lt; SIZE<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> ++j<span class="Delimiter">)</span>
      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span>j<span class="Delimiter">));</span>
  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(scenario merge)</span>
container foo [
  x:number
  y:number
]

recipe main [
  <span class="Constant">1</span>:foo<span class="Special"> &lt;- </span>merge <span class="Constant">3</span>:literal<span class="Delimiter">,</span> <span class="Constant">4</span>:literal
]
<span class="traceContains">+mem: storing 3 in location 1</span>
<span class="traceContains">+mem: storing 4 in location 2</span>

<span class="SalientComment">//:: helpers</span>

<span class="Delimiter">:(code)</span>
void skip_bracket<span class="Delimiter">(</span>istream&amp; in<span class="Delimiter">,</span> string message<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
  if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">()</span> != <span class="Constant">'['</span><span class="Delimiter">)</span>
    raise &lt;&lt; message &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
</pre>
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