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<span class="Comment">//: Some simple sanity checks for types, and also attempts to guess them where</span>
<span class="Comment">//: they aren't provided.</span>
<span class="Comment">//:</span>
<span class="Comment">//: You still have to provide the full type the first time you mention a</span>
<span class="Comment">//: variable in a recipe. You have to explicitly name :offset and :variant</span>
<span class="Comment">//: every single time. You can't use the same name with multiple types in a</span>
<span class="Comment">//: single recipe.</span>
<span class="Delimiter">:(scenario transform_fails_on_reusing_name_with_different_type)</span>
<span class="Special">% Hide_errors = true;</span>
def main [
<span class="Normal">x</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span class="Normal">x</span>:boolean<span class="Special"> <- </span>copy <span class="Constant">1</span>
]
<span class="traceContains">+error: main: x used with multiple types</span>
<span class="Delimiter">:(after "Begin Instruction Modifying Transforms")</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_or_set_types_by_name<span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> check_or_set_types_by_name<span class="Delimiter">(</span><span class="Normal">const</span> recipe_ordinal r<span class="Delimiter">)</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 for recipe "</span> << get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name << end<span class="Delimiter">();</span>
recipe& caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
set<reagent> known<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>caller<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
instruction& inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> in = <span class="Constant">0</span><span class="Delimiter">;</span> in < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
deduce_missing_type<span class="Delimiter">(</span>known<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
check_type<span class="Delimiter">(</span>known<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>in<span class="Delimiter">),</span> caller<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> out = <span class="Constant">0</span><span class="Delimiter">;</span> out < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
deduce_missing_type<span class="Delimiter">(</span>known<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>out<span class="Delimiter">));</span>
check_type<span class="Delimiter">(</span>known<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>out<span class="Delimiter">),</span> caller<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> deduce_missing_type<span class="Delimiter">(</span>set<reagent>& known<span class="Delimiter">,</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>known<span class="Delimiter">.</span>find<span class="Delimiter">(</span>x<span class="Delimiter">)</span> == known<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
x<span class="Delimiter">.</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*known<span class="Delimiter">.</span>find<span class="Delimiter">(</span>x<span class="Delimiter">)-></span>type<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> << x<span class="Delimiter">.</span>name << <span class="Constant">" <= "</span> << names_to_string<span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> check_type<span class="Delimiter">(</span>set<reagent>& known<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& x<span class="Delimiter">,</span> <span class="Normal">const</span> recipe& caller<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_integer<span class="Delimiter">(</span>x<span class="Delimiter">.</span>name<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if you use raw locations you're probably doing something unsafe</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// might get filled in by other logic later</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>known<span class="Delimiter">.</span>find<span class="Delimiter">(</span>x<span class="Delimiter">)</span> == known<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <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> << x<span class="Delimiter">.</span>name << <span class="Constant">" => "</span> << names_to_string<span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
known<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!types_strictly_match<span class="Delimiter">(</span>known<span class="Delimiter">.</span>find<span class="Delimiter">(</span>x<span class="Delimiter">)-></span>type<span class="Delimiter">,</span> x<span class="Delimiter">.</span>type<span class="Delimiter">))</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> << x<span class="Delimiter">.</span>name << <span class="Constant">" used with multiple types</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"array"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << maybe<span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> << x<span class="Delimiter">.</span>name << <span class="Constant">" can't be just an array. What is it an array of?</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>right<span class="Delimiter">-></span>right<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << caller<span class="Delimiter">.</span>name << <span class="Constant">" can't determine the size of array variable "</span> << x<span class="Delimiter">.</span>name << <span class="Constant">". Either allocate it separately and make the type of "</span> << x<span class="Delimiter">.</span>name << <span class="Constant">" address:..., or specify the length of the array in the type of "</span> << x<span class="Delimiter">.</span>name << <span class="Constant">".</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario transform_fills_in_missing_types)</span>
def main [
<span class="Normal">x</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span class="Normal">y</span>:number<span class="Special"> <- </span>add x<span class="Delimiter">,</span> <span class="Constant">1</span>
]
<span class="Delimiter">:(scenario transform_fills_in_missing_types_in_product)</span>
def main [
<span class="Normal">x</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>
x<span class="Special"> <- </span>copy <span class="Constant">2</span>
]
<span class="Delimiter">:(scenario transform_fills_in_missing_types_in_product_and_ingredient)</span>
def main [
<span class="Normal">x</span>:number<span class="Special"> <- </span>copy <span class="Constant">1</span>
x<span class="Special"> <- </span>add x<span class="Delimiter">,</span> <span class="Constant">1</span>
]
<span class="traceContains">+mem: storing 2 in location 1</span>
<span class="Delimiter">:(scenario transform_fails_on_missing_types_in_first_mention)</span>
<span class="Special">% Hide_errors = true;</span>
def main [
x<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span class="Normal">x</span>:number<span class="Special"> <- </span>copy <span class="Constant">2</span>
]
<span class="traceContains">+error: main: missing type for x in 'x <- copy 1'</span>
<span class="Delimiter">:(scenario typo_in_address_type_fails)</span>
<span class="Special">% Hide_errors = true;</span>
def main [
<span class="Normal">y</span>:address:charcter<span class="Special"> <- </span><span class="Normal">new</span> character:type
*y<span class="Special"> <- </span>copy <span class="Constant">67</span>
]
<span class="traceContains">+error: main: unknown type charcter in 'y:address:charcter <- new character:type'</span>
<span class="Delimiter">:(scenario array_type_without_size_fails)</span>
<span class="Special">% Hide_errors = true;</span>
def main [
<span class="Normal">x</span>:array:number<span class="Special"> <- </span>merge <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">12</span><span class="Delimiter">,</span> <span class="Constant">13</span>
]
<span class="traceContains">+error: main can't determine the size of array variable x. Either allocate it separately and make the type of x address:..., or specify the length of the array in the type of x.</span>
<span class="Delimiter">:(scenarios transform)</span>
<span class="Delimiter">:(scenario transform_checks_types_of_identical_reagents_in_multiple_spaces)</span>
def foo [ <span class="Comment"># dummy</span>
]
def main [
local-scope
<span class="Constant">0</span>:address:array:location/names:foo<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># specify surrounding space</span>
<span class="Normal">x</span>:boolean<span class="Special"> <- </span>copy <span class="Constant">1</span>/<span class="Constant">true</span>
<span class="Normal">x</span>:number/space:<span class="Constant">1</span><span class="Special"> <- </span>copy <span class="Constant">34</span>
x/space:<span class="Constant">1</span><span class="Special"> <- </span>copy <span class="Constant">35</span>
]
$error: <span class="Constant">0</span>
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