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<span class="Comment">//: Advanced notation for the common/easy case where a recipe takes some fixed</span>
<span class="Comment">//: number of ingredients and yields some fixed number of products.</span>
<span class="Delimiter">:(scenario recipe_with_header)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
z:number<span class="Special"> <- </span>add x<span class="Delimiter">,</span> y
reply z
]
<span class="traceContains">+mem: storing 8 in location 1</span>
<span class="Comment">//: When loading recipes save any header.</span>
<span class="Delimiter">:(before "End recipe Fields")</span>
bool has_header<span class="Delimiter">;</span>
vector<reagent> ingredients<span class="Delimiter">;</span>
vector<reagent> products<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End recipe Constructor")</span>
has_header = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End recipe Refinements")</span>
skip_whitespace<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"recipe has a header; parsing"</span> << end<span class="Delimiter">();</span>
load_recipe_header<span class="Delimiter">(</span>in<span class="Delimiter">,</span> result<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
void load_recipe_header<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> recipe& result<span class="Delimiter">)</span> <span class="Delimiter">{</span>
result<span class="Delimiter">.</span>has_header = <span class="Constant">true</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
string s = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>s == <span class="Constant">"->"</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
result<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span>s<span class="Delimiter">));</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"header ingredient: "</span> << result<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>back<span class="Delimiter">().</span>original_string << end<span class="Delimiter">();</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
while <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
string s = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
result<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span>s<span class="Delimiter">));</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"header product: "</span> << result<span class="Delimiter">.</span>products<span class="Delimiter">.</span>back<span class="Delimiter">().</span>original_string << end<span class="Delimiter">();</span>
skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Load Recipe Header(result)</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario recipe_handles_stray_comma)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number<span class="Delimiter">,</span> [
local-scope
load-ingredients
z:number<span class="Special"> <- </span>add x<span class="Delimiter">,</span> y
reply z
]
<span class="traceContains">+mem: storing 8 in location 1</span>
<span class="Delimiter">:(scenario recipe_handles_stray_comma_2)</span>
recipe main [
foo
]
recipe foo<span class="Delimiter">,</span> [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">2</span>
]
recipe bar [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">3</span>
]
<span class="traceContains">+mem: storing 4 in location 1</span>
<span class="Delimiter">:(after "Begin debug_string(recipe x)")</span>
out << <span class="Constant">"ingredients:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>x<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
out << <span class="Constant">" "</span> << debug_string<span class="Delimiter">(</span>x<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
out << <span class="Constant">"products:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>x<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
out << <span class="Constant">" "</span> << debug_string<span class="Delimiter">(</span>x<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Comment">//: If a recipe never mentions any ingredients or products, assume it has a header.</span>
<span class="Delimiter">:(scenario recipe_without_ingredients_or_products_has_header)</span>
recipe test [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>
]
<span class="traceContains">+parse: recipe test has a header</span>
<span class="Delimiter">:(before "End recipe Body(result)")</span>
if <span class="Delimiter">(</span>!result<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Delimiter">{</span>
result<span class="Delimiter">.</span>has_header = <span class="Constant">true</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>result<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
const instruction& inst = result<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
if <span class="Delimiter">((</span>inst<span class="Delimiter">.</span>name == <span class="Constant">"reply"</span> && !inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
|| inst<span class="Delimiter">.</span>name == <span class="Constant">"next-ingredient"</span>
|| inst<span class="Delimiter">.</span>name == <span class="Constant">"ingredient"</span>
|| inst<span class="Delimiter">.</span>name == <span class="Constant">"rewind-ingredients"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
result<span class="Delimiter">.</span>has_header = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>result<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"recipe "</span> << result<span class="Delimiter">.</span>name << <span class="Constant">" has a header"</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Comment">//: Rewrite 'load-ingredients' to instructions to create all reagents in the header.</span>
<span class="Delimiter">:(before "End Rewrite Instruction(curr, recipe result)")</span>
if <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"load-ingredients"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
curr<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>result<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
curr<span class="Delimiter">.</span>operation = get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"next-ingredient"</span><span class="Delimiter">);</span>
curr<span class="Delimiter">.</span>name = <span class="Constant">"next-ingredient"</span><span class="Delimiter">;</span>
curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
result<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span>
curr<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: Check types going in and out of all recipes with headers.</span>
<span class="Delimiter">:(scenarios transform)</span>
<span class="Delimiter">:(scenario recipe_headers_are_checked)</span>
<span class="Special">% Hide_errors = true;</span>
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
z:address:number<span class="Special"> <- </span>copy <span class="Constant">0</span>/unsafe
reply z
]
<span class="traceContains">+error: add2: replied with the wrong type at 'reply z'</span>
<span class="Delimiter">:(before "End Checks")</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_reply_instructions_against_header<span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span class="Delimiter">:(code)</span>
void check_reply_instructions_against_header<span class="Delimiter">(</span>const recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
const recipe& caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"--- checking reply instructions against header for "</span> << caller_recipe<span class="Delimiter">.</span>name << end<span class="Delimiter">();</span>
<span class="CommentedCode">//? cerr << "--- checking reply instructions against header for " << caller_recipe.name << '\n';</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
const instruction& inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">"reply"</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!types_match<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span>
raise_error << maybe<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> << <span class="Constant">"replied with the wrong type at '"</span> << inst<span class="Delimiter">.</span>to_string<span class="Delimiter">()</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario recipe_headers_check_for_duplicate_names)</span>
<span class="Special">% Hide_errors = true;</span>
recipe add2 x:number<span class="Delimiter">,</span> x:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
reply z
]
<span class="traceContains">+error: add2: x can't repeat in the ingredients</span>
<span class="Delimiter">:(before "End recipe Fields")</span>
map<string<span class="Delimiter">,</span> int> ingredient_index<span class="Delimiter">;</span>
<span class="Delimiter">:(after "Begin Instruction Modifying Transforms")</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_header_ingredients<span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span class="Delimiter">:(code)</span>
void check_header_ingredients<span class="Delimiter">(</span>const recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
recipe& caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"--- checking reply instructions against header for "</span> << caller_recipe<span class="Delimiter">.</span>name << end<span class="Delimiter">();</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">))</span>
raise_error << maybe<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> << caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" can't repeat in the ingredients</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
put<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> i<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Comment">//: Deduce types from the header if possible.</span>
<span class="Delimiter">:(scenarios run)</span>
<span class="Delimiter">:(scenario deduce_instruction_types_from_recipe_header)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
z<span class="Special"> <- </span>add x<span class="Delimiter">,</span> y <span class="Comment"># no type for z</span>
reply z
]
<span class="traceContains">+mem: storing 8 in location 1</span>
<span class="Delimiter">:(after "Begin Type Modifying Transforms")</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>deduce_types_from_header<span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span class="Delimiter">:(code)</span>
void deduce_types_from_header<span class="Delimiter">(</span>const recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
recipe& caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"--- deduce types from header for "</span> << caller_recipe<span class="Delimiter">.</span>name << end<span class="Delimiter">();</span>
<span class="CommentedCode">//? cerr << "--- deduce types from header for " << caller_recipe.name << '\n';</span>
map<string<span class="Delimiter">,</span> const type_tree*> header_type<span class="Delimiter">;</span>
map<string<span class="Delimiter">,</span> const string_tree*> header_type_name<span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
put<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">);</span>
put<span class="Delimiter">(</span>header_type_name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<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>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"type of "</span> << caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" is "</span> << debug_string<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> << end<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 < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
put<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">);</span>
put<span class="Delimiter">(</span>header_type_name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<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>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"type of "</span> << caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" is "</span> << debug_string<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> << end<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 < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
instruction& inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
trace<span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction: "</span> << inst<span class="Delimiter">.</span>to_string<span class="Delimiter">()</span> << end<span class="Delimiter">();</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>header_type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> == header_type<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> << <span class="Constant">"unknown variable "</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" in '"</span> << inst<span class="Delimiter">.</span>to_string<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">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span>
inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type = new type_tree<span class="Delimiter">(</span>*get<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">));</span>
if <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<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>
inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second = new string_tree<span class="Delimiter">(</span>*get<span class="Delimiter">(</span>header_type_name<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">));</span>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"type of "</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" is "</span> << debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> << end<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 < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">" product: "</span> << debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> << end<span class="Delimiter">();</span>
if <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>header_type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> == header_type<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> << <span class="Constant">"unknown variable "</span> << inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" in '"</span> << inst<span class="Delimiter">.</span>to_string<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">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span>
inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type = new type_tree<span class="Delimiter">(</span>*get<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">));</span>
if <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<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>
inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second = new string_tree<span class="Delimiter">(</span>*get<span class="Delimiter">(</span>header_type_name<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">));</span>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"type of "</span> << inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name << <span class="Constant">" is "</span> << debug_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Comment">//: One final convenience: no need to say what to return if the information is</span>
<span class="Comment">//: in the header.</span>
<span class="Delimiter">:(scenario reply_based_on_header)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
z<span class="Special"> <- </span>add x<span class="Delimiter">,</span> y
reply
]
<span class="traceContains">+mem: storing 8 in location 1</span>
<span class="Delimiter">:(after "Transform.push_back(check_header_ingredients)")</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>fill_in_reply_ingredients<span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span class="Delimiter">:(code)</span>
void fill_in_reply_ingredients<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
recipe& caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>!caller_recipe<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"--- fill in reply ingredients from header for recipe "</span> << caller_recipe<span class="Delimiter">.</span>name << end<span class="Delimiter">();</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
instruction& inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">"reply"</span> && inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
add_header_products<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">// fall through reply</span>
if <span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">).</span>name != <span class="Constant">"reply"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
instruction inst<span class="Delimiter">;</span>
inst<span class="Delimiter">.</span>name = <span class="Constant">"reply"</span><span class="Delimiter">;</span>
add_header_products<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">);</span>
caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
void add_header_products<span class="Delimiter">(</span>instruction& inst<span class="Delimiter">,</span> const recipe& caller_recipe<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">"reply"</span><span class="Delimiter">);</span>
<span class="Comment">// collect any products with the same names as ingredients</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// if the ingredient is missing, add it from the header</span>
if <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> == i<span class="Delimiter">)</span>
inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
<span class="Comment">// if it's missing /same_as_ingredient, try to fill it in</span>
if <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> && !has_property<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="Constant">"same_as_ingredient"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
ostringstream same_as_ingredient<span class="Delimiter">;</span>
same_as_ingredient << get<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">);</span>
inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span><span class="Constant">"same-as-ingredient"</span><span class="Delimiter">,</span> new string_tree<span class="Delimiter">(</span>same_as_ingredient<span class="Delimiter">.</span>str<span class="Delimiter">())));</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario explicit_reply_ignores_header)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">2</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 a:number<span class="Delimiter">,</span> b:number <span class="Delimiter">-></span> y:number<span class="Delimiter">,</span> z:number [
local-scope
load-ingredients
y<span class="Special"> <- </span>add a<span class="Delimiter">,</span> b
z<span class="Special"> <- </span>subtract a<span class="Delimiter">,</span> b
reply a<span class="Delimiter">,</span> z
]
<span class="traceContains">+mem: storing 3 in location 1</span>
<span class="traceContains">+mem: storing -2 in location 2</span>
<span class="Delimiter">:(scenario reply_on_fallthrough_based_on_header)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
z<span class="Special"> <- </span>add x<span class="Delimiter">,</span> y
]
<span class="traceContains">+transform: instruction: reply z:number</span>
<span class="traceContains">+mem: storing 8 in location 1</span>
<span class="Delimiter">:(scenario reply_on_fallthrough_already_exists)</span>
recipe main [
<span class="Constant">1</span>:number/<span class="Special">raw <- </span>add2 <span class="Constant">3</span><span class="Delimiter">,</span> <span class="Constant">5</span>
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> z:number [
local-scope
load-ingredients
z<span class="Special"> <- </span>add x<span class="Delimiter">,</span> y <span class="Comment"># no type for z</span>
reply z
]
<span class="traceContains">+transform: instruction: reply z</span>
<span class="traceAbsent">-transform: instruction: reply z:number</span>
<span class="traceContains">+mem: storing 8 in location 1</span>
<span class="Delimiter">:(scenario recipe_headers_perform_same_ingredient_check)</span>
<span class="Special">% Hide_errors = true;</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span class="Constant">3</span>:number<span class="Special"> <- </span>add2 <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number
]
recipe add2 x:number<span class="Delimiter">,</span> y:number <span class="Delimiter">-></span> x:number [
local-scope
load-ingredients
]
<span class="traceContains">+error: main: '3:number <- add2 1:number, 2:number' should write to 1:number rather than 3:number</span>
</pre>
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