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<span class="Comment">//: Calls can take ingredients just like primitives. To access a recipe's</span>
<span class="Comment">//: ingredients, use 'next-ingredient'.</span>
<span class="Delimiter">:(scenario next_ingredient)</span>
def main [
f <span class="Constant">2</span>
]
def f [
<span class="Constant">12</span>:num<span class="Special"> <- </span>next-ingredient
<span class="Constant">13</span>:num<span class="Special"> <- </span>add <span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">12</span>:num
]
<span class="traceContains">+mem: storing 3 in location 13</span>
<span class="Delimiter">:(scenario next_ingredient_missing)</span>
def main [
f
]
def f [
_<span class="Delimiter">,</span> <span class="Constant">12</span>:num<span class="Special"> <- </span>next-ingredient
]
<span class="traceContains">+mem: storing 0 in location 12</span>
<span class="Delimiter">:(before "End call Fields")</span>
vector<vector<<span class="Normal">double</span>> > ingredient_atoms<span class="Delimiter">;</span>
vector<reagent> ingredients<span class="Delimiter">;</span>
<span class="Normal">int</span> next_ingredient_to_process<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End call Constructor")</span>
next_ingredient_to_process = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Call Housekeeping")</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>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
current_call<span class="Delimiter">().</span>ingredient_atoms<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>
reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> ingredient = call_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="Comment">// End Compute Call Ingredient</span>
current_call<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>ingredient<span class="Delimiter">);</span>
<span class="Comment">// End Populate Call Ingredient</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
NEXT_INGREDIENT<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"next-ingredient"</span><span class="Delimiter">,</span> NEXT_INGREDIENT<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span class="Normal">case</span> NEXT_INGREDIENT: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'next-ingredient' didn't expect any ingredients in '"</span> << inst<span class="Delimiter">.</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> NEXT_INGREDIENT: <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>next_ingredient_to_process < SIZE<span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>ingredient_atoms<span class="Delimiter">))</span> <span class="Delimiter">{</span>
reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> product = current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Comment">// End Preprocess NEXT_INGREDIENT product</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">()</span> == <span class="Constant">"main"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// no ingredient types since the call might be implicit; assume ingredients are always strings</span>
<span class="Comment">// todo: how to test this?</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>product<span class="Delimiter">))</span>
raise << <span class="Constant">"main: wrong type for ingredient '"</span> << product<span class="Delimiter">.</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>product<span class="Delimiter">,</span>
current_call<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>next_ingredient_to_process<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> << <span class="Constant">"wrong type for ingredient '"</span> << product<span class="Delimiter">.</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Comment">// End next-ingredient Type Mismatch Error</span>
<span class="Delimiter">}</span>
products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>
current_call<span class="Delimiter">().</span>ingredient_atoms<span class="Delimiter">.</span>at<span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>next_ingredient_to_process<span class="Delimiter">));</span>
assert<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>products<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">);</span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> <span class="Comment">// push a new vector</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
++current_call<span class="Delimiter">().</span>next_ingredient_to_process<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> < <span class="Constant">2</span><span class="Delimiter">)</span>
raise << maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> << <span class="Constant">"no ingredient to save in '"</span> << current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
<span class="Comment">// pad the first product with sufficient zeros to match its type</span>
<span class="Normal">int</span> size = size_of<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</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> ++i<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><span class="Constant">0</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario next_ingredient_fail_on_missing)</span>
<span class="Special">% Hide_errors = true;</span>
def main [
f
]
def f [
<span class="Constant">11</span>:num<span class="Special"> <- </span>next-ingredient
]
<span class="traceContains">+error: f: no ingredient to save in '11:num'</span>
<span class="Delimiter">:(scenario rewind_ingredients)</span>
def main [
f <span class="Constant">2</span>
]
def f [
<span class="Constant">12</span>:num<span class="Special"> <- </span>next-ingredient <span class="Comment"># consume ingredient</span>
_<span class="Delimiter">,</span> <span class="Constant">1</span>:<span class="Normal">bool</span><span class="Special"> <- </span>next-ingredient <span class="Comment"># will not find any ingredients</span>
rewind-ingredients
<span class="Constant">13</span>:num<span class="Delimiter">,</span> <span class="Constant">2</span>:<span class="Normal">bool</span><span class="Special"> <- </span>next-ingredient <span class="Comment"># will find ingredient again</span>
]
<span class="traceContains">+mem: storing 2 in location 12</span>
<span class="traceContains">+mem: storing 0 in location 1</span>
<span class="traceContains">+mem: storing 2 in location 13</span>
<span class="traceContains">+mem: storing 1 in location 2</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
REWIND_INGREDIENTS<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"rewind-ingredients"</span><span class="Delimiter">,</span> REWIND_INGREDIENTS<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span class="Normal">case</span> REWIND_INGREDIENTS: <span class="Delimiter">{</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> REWIND_INGREDIENTS: <span class="Delimiter">{</span>
current_call<span class="Delimiter">().</span>next_ingredient_to_process = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario ingredient)</span>
def main [
f <span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">2</span>
]
def f [
<span class="Constant">12</span>:num<span class="Special"> <- </span>ingredient <span class="Constant">1</span> <span class="Comment"># consume second ingredient first</span>
<span class="Constant">13</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>:<span class="Normal">bool</span><span class="Special"> <- </span>next-ingredient <span class="Comment"># next-ingredient tries to scan past that</span>
]
<span class="traceContains">+mem: storing 2 in location 12</span>
<span class="traceContains">+mem: storing 0 in location 1</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
INGREDIENT<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"ingredient"</span><span class="Delimiter">,</span> INGREDIENT<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span class="Normal">case</span> INGREDIENT: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'ingredient' expects exactly one ingredient, but got '"</span> << inst<span class="Delimiter">.</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> && !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'ingredient' expects a literal ingredient, but got '"</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> INGREDIENT: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> < SIZE<span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>ingredient_atoms<span class="Delimiter">))</span> <span class="Delimiter">{</span>
current_call<span class="Delimiter">().</span>next_ingredient_to_process = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>
current_call<span class="Delimiter">().</span>ingredient_atoms<span class="Delimiter">.</span>at<span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>next_ingredient_to_process<span class="Delimiter">));</span>
assert<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>products<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">);</span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> <span class="Comment">// push a new vector</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
++current_call<span class="Delimiter">().</span>next_ingredient_to_process<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> > <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</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><span class="Constant">0</span><span class="Delimiter">);</span> <span class="Comment">// todo: will fail noisily if we try to read a compound value</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">//: a particularly common array type is the text, or address:array:character</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">bool</span> is_mu_text<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">// End Preprocess is_mu_text(reagent x)</span>
<span class="Identifier">return</span> x<span class="Delimiter">.</span>type
&& !x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>atom
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>left<span class="Delimiter">-></span>atom
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>left<span class="Delimiter">-></span>value == get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"address"</span><span class="Delimiter">)</span>
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right
&& !x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>atom
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>left<span class="Delimiter">-></span>atom
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>left<span class="Delimiter">-></span>value == get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"array"</span><span class="Delimiter">)</span>
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>right
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>right<span class="Delimiter">-></span>atom
&& x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>right<span class="Delimiter">-></span>value == get<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"character"</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
</pre>
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