diff options
Diffstat (limited to 'html/076continuation.cc.html')
| -rw-r--r-- | html/076continuation.cc.html | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/html/076continuation.cc.html b/html/076continuation.cc.html index 232fdf84..84764606 100644 --- a/html/076continuation.cc.html +++ b/html/076continuation.cc.html @@ -115,42 +115,42 @@ if ('onhashchange' in window) { <span id="L52" class="LineNr"> 52 </span><span class="Comment">//: There should still be no way to lookup addresses that aren't allocated.</span> <span id="L53" class="LineNr"> 53 </span> <span id="L54" class="LineNr"> 54 </span><span class="Delimiter">:(before "End Mu Types Initialization")</span> -<span id="L55" class="LineNr"> 55 </span><a href='010vm.cc.html#L124'>type_ordinal</a> continuation = Type_ordinal[<span class="Constant">"continuation"</span>] = Next_type_ordinal++<span class="Delimiter">;</span> +<span id="L55" class="LineNr"> 55 </span><a href='010vm.cc.html#L125'>type_ordinal</a> continuation = Type_ordinal[<span class="Constant">"continuation"</span>] = Next_type_ordinal++<span class="Delimiter">;</span> <span id="L56" class="LineNr"> 56 </span>Type[continuation]<span class="Delimiter">.</span>name = <span class="Constant">"continuation"</span><span class="Delimiter">;</span> <span id="L57" class="LineNr"> 57 </span> <span id="L58" class="LineNr"> 58 </span><span class="Comment">//: A continuation can be called like a recipe.</span> <span id="L59" class="LineNr"> 59 </span><span class="Delimiter">:(before "End <a href='072recipe.cc.html#L335'>is_mu_recipe</a> Atom Cases(r)")</span> -<span id="L60" class="LineNr"> 60 </span><span class="Normal">if</span> <span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"continuation"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> +<span id="L60" class="LineNr"> 60 </span><span class="Normal">if</span> <span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"continuation"</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> <span id="L61" class="LineNr"> 61 </span> <span id="L62" class="LineNr"> 62 </span><span class="Comment">//: However, it can't be type-checked like most recipes. Pretend it's like a</span> <span id="L63" class="LineNr"> 63 </span><span class="Comment">//: header-less recipe.</span> <span id="L64" class="LineNr"> 64 </span><span class="Delimiter">:(after "Begin Reagent->Recipe(r, recipe_header)")</span> <span id="L65" class="LineNr"> 65 </span><span class="Normal">if</span> <span class="Delimiter">(</span>r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>atom && r<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"continuation"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L66" class="LineNr"> 66 </span> result_header<span class="Delimiter">.</span>has_header = <span class="Constant">false</span><span class="Delimiter">;</span> +<span id="L66" class="LineNr"> 66 </span> result_header<span class="Delimiter">.</span>has_header =<span class="Constant"> false</span><span class="Delimiter">;</span> <span id="L67" class="LineNr"> 67 </span> <span class="Identifier">return</span> result_header<span class="Delimiter">;</span> <span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span> <span id="L69" class="LineNr"> 69 </span> <span id="L70" class="LineNr"> 70 </span><span class="Delimiter">:(scenario delimited_continuation)</span> <span id="L71" class="LineNr"> 71 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> <a href='000organization.cc.html#L113'>main</a> [ <span id="L72" class="LineNr"> 72 </span> <span class="Constant">1</span>:continuation<span class="Special"> <- </span>call-with-continuation-mark <span class="Constant">233</span>/mark<span class="Delimiter">,</span> f<span class="Delimiter">,</span> <span class="Constant">77</span> <span class="Comment"># 77 is an argument to f</span> -<span id="L73" class="LineNr"> 73 </span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">5</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span id="L74" class="LineNr"> 74 </span> <span class="Delimiter">{</span> -<span id="L75" class="LineNr"> 75 </span> <span class="Constant">2</span>:number<span class="Special"> <- </span>call <span class="Constant">1</span>:continuation<span class="Delimiter">,</span> <span class="Constant">2</span>:number <span class="Comment"># jump to 'return-continuation-until-mark' below</span> -<span id="L76" class="LineNr"> 76 </span> <span class="Constant">3</span>:boolean<span class="Special"> <- </span>greater-<span class="Normal">or</span>-equal <span class="Constant">2</span>:number<span class="Delimiter">,</span> <span class="Constant">8</span> -<span id="L77" class="LineNr"> 77 </span> <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">3</span>:boolean +<span id="L75" class="LineNr"> 75 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>call <span class="Constant">1</span>:continuation<span class="Delimiter">,</span> <span class="Constant">2</span>:num <span class="Comment"># jump to 'return-continuation-until-mark' below</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Constant">3</span>:<span class="Normal">bool</span><span class="Special"> <- </span>greater-<span class="Normal">or</span>-equal <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">8</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">3</span>:<span class="Normal">bool</span> <span id="L78" class="LineNr"> 78 </span> loop <span id="L79" class="LineNr"> 79 </span> <span class="Delimiter">}</span> <span id="L80" class="LineNr"> 80 </span>] <span id="L81" class="LineNr"> 81 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> f [ -<span id="L82" class="LineNr"> 82 </span> <span class="Constant">11</span>:number<span class="Special"> <- </span>next-ingredient -<span id="L83" class="LineNr"> 83 </span> <span class="Constant">12</span>:number<span class="Special"> <- </span>g <span class="Constant">11</span>:number -<span id="L84" class="LineNr"> 84 </span> <span class="Identifier">return</span> <span class="Constant">12</span>:number +<span id="L82" class="LineNr"> 82 </span> <span class="Constant">11</span>:num<span class="Special"> <- </span>next-ingredient +<span id="L83" class="LineNr"> 83 </span> <span class="Constant">12</span>:num<span class="Special"> <- </span>g <span class="Constant">11</span>:num +<span id="L84" class="LineNr"> 84 </span> <span class="Identifier">return</span> <span class="Constant">12</span>:num <span id="L85" class="LineNr"> 85 </span>] <span id="L86" class="LineNr"> 86 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> g [ -<span id="L87" class="LineNr"> 87 </span> <span class="Constant">21</span>:number<span class="Special"> <- </span>next-ingredient -<span id="L88" class="LineNr"> 88 </span> <span class="Constant">22</span>:number<span class="Special"> <- </span><span class="Identifier">return</span>-continuation-until-mark <span class="Constant">233</span>/mark -<span id="L89" class="LineNr"> 89 </span> <span class="Constant">23</span>:number<span class="Special"> <- </span>add <span class="Constant">22</span>:number<span class="Delimiter">,</span> <span class="Constant">1</span> -<span id="L90" class="LineNr"> 90 </span> <span class="Identifier">return</span> <span class="Constant">23</span>:number +<span id="L87" class="LineNr"> 87 </span> <span class="Constant">21</span>:num<span class="Special"> <- </span>next-ingredient +<span id="L88" class="LineNr"> 88 </span> <span class="Constant">22</span>:num<span class="Special"> <- </span><span class="Identifier">return</span>-continuation-until-mark <span class="Constant">233</span>/mark +<span id="L89" class="LineNr"> 89 </span> <span class="Constant">23</span>:num<span class="Special"> <- </span>add <span class="Constant">22</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Identifier">return</span> <span class="Constant">23</span>:num <span id="L91" class="LineNr"> 91 </span>] <span id="L92" class="LineNr"> 92 </span><span class="Comment"># first call of 'g' executes the part before return-continuation-until-mark</span> <span id="L93" class="LineNr"> 93 </span><span class="traceContains">+mem: storing 77 in location 21</span> @@ -187,7 +187,7 @@ if ('onhashchange' in window) { <span id="L124" class="LineNr">124 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span> <span id="L125" class="LineNr">125 </span><span class="Normal">case</span> CALL_WITH_CONTINUATION_MARK: <span class="Delimiter">{</span> <span id="L126" class="LineNr">126 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> < <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L127" class="LineNr">127 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><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">"'"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' requires at least two ingredients: a mark number and a <a href='010vm.cc.html#L19'>recipe</a> to call</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L127" class="LineNr">127 </span> <a href='003trace.cc.html#L197'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><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">"'"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' requires at least two ingredients: a mark number and a <a href='010vm.cc.html#L19'>recipe</a> to call</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L128" class="LineNr">128 </span> <span class="Delimiter">}</span> <span id="L129" class="LineNr">129 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L130" class="LineNr">130 </span><span class="Delimiter">}</span> @@ -197,10 +197,10 @@ if ('onhashchange' in window) { <span id="L134" class="LineNr">134 </span> <span class="Comment">// before pushing the next one on it</span> <span id="L135" class="LineNr">135 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L136" class="LineNr">136 </span> ++Trace_stream<span class="Delimiter">-></span>callstack_depth<span class="Delimiter">;</span> -<span id="L137" class="LineNr">137 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"delimited continuation; incrementing callstack depth to "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L137" class="LineNr">137 </span> <a href='003trace.cc.html#L190'>trace</a><span class="Delimiter">(</span><span class="Constant">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"delimited continuation; incrementing callstack depth to "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L138" class="LineNr">138 </span> assert<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>callstack_depth < <span class="Constant">9000</span><span class="Delimiter">);</span> <span class="Comment">// 9998-101 plus cushion</span> <span id="L139" class="LineNr">139 </span> <span class="Delimiter">}</span> -<span id="L140" class="LineNr">140 </span> <a href='010vm.cc.html#L32'>instruction</a><span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> caller_instruction = <a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">();</span> +<span id="L140" class="LineNr">140 </span> <a href='010vm.cc.html#L33'>instruction</a><span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> caller_instruction = <a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">();</span> <span id="L141" class="LineNr">141 </span> Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>continuation_mark_tag = <a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>value<span class="Delimiter">;</span> <span id="L142" class="LineNr">142 </span> Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>push_front<span class="Delimiter">(</span>call<span class="Delimiter">(</span>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> <span id="L143" class="LineNr">143 </span> <span class="Comment">// drop the mark</span> @@ -215,7 +215,7 @@ if ('onhashchange' in window) { <span id="L152" class="LineNr">152 </span> <span id="L153" class="LineNr">153 </span><span class="Delimiter">:(scenario next_ingredient_inside_continuation)</span> <span id="L154" class="LineNr">154 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> <a href='000organization.cc.html#L113'>main</a> [ -<span id="L155" class="LineNr">155 </span> call-with-continuation-mark <span class="Constant">233</span>/mark<span class="Delimiter">,</span> f<span class="Delimiter">,</span> <span class="Constant">1</span>/<span class="Constant">true</span> +<span id="L155" class="LineNr">155 </span> call-with-continuation-mark <span class="Constant">233</span>/mark<span class="Delimiter">,</span> f<span class="Delimiter">,</span><span class="Constant"> true</span> <span id="L156" class="LineNr">156 </span>] <span id="L157" class="LineNr">157 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> f [ <span id="L158" class="LineNr">158 </span> <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> <- </span>next-input @@ -225,7 +225,7 @@ if ('onhashchange' in window) { <span id="L162" class="LineNr">162 </span><span class="Delimiter">:(scenario delimited_continuation_out_of_recipe_variable)</span> <span id="L163" class="LineNr">163 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> <a href='000organization.cc.html#L113'>main</a> [ <span id="L164" class="LineNr">164 </span> <span class="Normal">x</span>:<a href='010vm.cc.html#L19'>recipe</a><span class="Special"> <- </span>copy f -<span id="L165" class="LineNr">165 </span> call-with-continuation-mark <span class="Constant">233</span>/mark<span class="Delimiter">,</span> x<span class="Delimiter">,</span> <span class="Constant">1</span>/<span class="Constant">true</span> +<span id="L165" class="LineNr">165 </span> call-with-continuation-mark <span class="Constant">233</span>/mark<span class="Delimiter">,</span> x<span class="Delimiter">,</span><span class="Constant"> true</span> <span id="L166" class="LineNr">166 </span>] <span id="L167" class="LineNr">167 </span><span class="muRecipe"><a href='010vm.cc.html#L19'>recipe</a></span> f [ <span id="L168" class="LineNr">168 </span> <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> <- </span>next-input @@ -239,7 +239,7 @@ if ('onhashchange' in window) { <span id="L176" class="LineNr">176 </span><span class="Normal">struct</span> delimited_continuation <span class="Delimiter">{</span> <span id="L177" class="LineNr">177 </span> call_stack frames<span class="Delimiter">;</span> <span id="L178" class="LineNr">178 </span> <span class="Normal">int</span> nrefs<span class="Delimiter">;</span> -<span id="L179" class="LineNr">179 </span> delimited_continuation<span class="Delimiter">(</span>call_stack::iterator begin<span class="Delimiter">,</span> call_stack::iterator <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">)</span> :frames<span class="Delimiter">(</span>call_stack<span class="Delimiter">(</span>begin<span class="Delimiter">,</span> <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">)),</span> nrefs<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span> +<span id="L179" class="LineNr">179 </span> delimited_continuation<span class="Delimiter">(</span>call_stack::iterator begin<span class="Delimiter">,</span> call_stack::iterator <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">)</span> :frames<span class="Delimiter">(</span>call_stack<span class="Delimiter">(</span>begin<span class="Delimiter">,</span> <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">)),</span> nrefs<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span> <span id="L180" class="LineNr">180 </span><span class="Delimiter">};</span> <span id="L181" class="LineNr">181 </span><span class="Delimiter">:(before "End Globals")</span> <span id="L182" class="LineNr">182 </span>map<<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span><span class="Delimiter">,</span> delimited_continuation> Delimited_continuation<span class="Delimiter">;</span> @@ -255,7 +255,7 @@ if ('onhashchange' in window) { <span id="L192" class="LineNr">192 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span> <span id="L193" class="LineNr">193 </span><span class="Normal">case</span> RETURN_CONTINUATION_UNTIL_MARK: <span class="Delimiter">{</span> <span id="L194" class="LineNr">194 </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> -<span id="L195" class="LineNr">195 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><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">"'"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' requires at least one ingredient: a mark tag (number)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L195" class="LineNr">195 </span> <a href='003trace.cc.html#L197'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><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">"'"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' requires at least one ingredient: a mark tag (number)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L196" class="LineNr">196 </span> <span class="Delimiter">}</span> <span id="L197" class="LineNr">197 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L198" class="LineNr">198 </span><span class="Delimiter">}</span> @@ -269,14 +269,14 @@ if ('onhashchange' in window) { <span id="L206" class="LineNr">206 </span> <span class="Comment">// copy the current call stack until the most recent marked call</span> <span id="L207" class="LineNr">207 </span> call_stack::iterator find_base_of_continuation<span class="Delimiter">(</span>call_stack&<span class="Delimiter">,</span> <span class="Normal">int</span><span class="Delimiter">);</span> <span class="Comment">// manual prototype containing '::'</span> <span id="L208" class="LineNr">208 </span> call_stack::iterator base = find_base_of_continuation<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">mark tag</span><span class="Comment">*/</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>value<span class="Delimiter">);</span> -<span id="L209" class="LineNr">209 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>base == Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L210" class="LineNr">210 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"couldn't find a 'call-with-continuation-mark' to return to with tag "</span> << 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>original_string << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> -<span id="L211" class="LineNr">211 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"call stack:</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> -<span id="L212" class="LineNr">212 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>call_stack::iterator p = Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L213" class="LineNr">213 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">" "</span> << get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> p<span class="Delimiter">-></span>running_recipe<span class="Delimiter">).</span>name << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L209" class="LineNr">209 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>base == Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L210" class="LineNr">210 </span> <a href='003trace.cc.html#L197'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"couldn't find a 'call-with-continuation-mark' to return to with tag "</span> << 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>original_string << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> +<span id="L211" class="LineNr">211 </span> <a href='003trace.cc.html#L197'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"call stack:</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> +<span id="L212" class="LineNr">212 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>call_stack::iterator p = Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L213" class="LineNr">213 </span> <a href='003trace.cc.html#L197'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">" "</span> << get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> p<span class="Delimiter">-></span>running_recipe<span class="Delimiter">).</span>name << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L214" class="LineNr">214 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L215" class="LineNr">215 </span> <span class="Delimiter">}</span> -<span id="L216" class="LineNr">216 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"creating continuation "</span> << Next_delimited_continuation_id << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L216" class="LineNr">216 </span> <a href='003trace.cc.html#L190'>trace</a><span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"creating continuation "</span> << Next_delimited_continuation_id << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L217" class="LineNr">217 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Delimited_continuation<span class="Delimiter">,</span> Next_delimited_continuation_id<span class="Delimiter">,</span> delimited_continuation<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> base<span class="Delimiter">));</span> <span id="L218" class="LineNr">218 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> != base<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L219" class="LineNr">219 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span> @@ -289,16 +289,16 @@ if ('onhashchange' in window) { <span id="L226" class="LineNr">226 </span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> <span id="L227" class="LineNr">227 </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>Next_delimited_continuation_id<span class="Delimiter">);</span> <span id="L228" class="LineNr">228 </span> <span class="Comment">// return any other ingredients passed in</span> -<span id="L229" class="LineNr">229 </span> copy<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip mark tag</span><span class="Comment">*/</span>++ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>products<span class="Delimiter">,</span> products<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">()));</span> +<span id="L229" class="LineNr">229 </span> copy<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip mark tag</span><span class="Comment">*/</span>++ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>products<span class="Delimiter">,</span> products<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">()));</span> <span id="L230" class="LineNr">230 </span> ++Next_delimited_continuation_id<span class="Delimiter">;</span> <span id="L231" class="LineNr">231 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// continue to process rest of marked call</span> <span id="L232" class="LineNr">232 </span><span class="Delimiter">}</span> <span id="L233" class="LineNr">233 </span> <span id="L234" class="LineNr">234 </span><span class="Delimiter">:(code)</span> <span id="L235" class="LineNr">235 </span>call_stack::iterator find_base_of_continuation<span class="Delimiter">(</span>call_stack& c<span class="Delimiter">,</span> <span class="Normal">int</span> mark_tag<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L236" class="LineNr">236 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>call_stack::iterator p = c<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != c<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L236" class="LineNr">236 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>call_stack::iterator p = c<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != c<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span id="L237" class="LineNr">237 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-></span>continuation_mark_tag == mark_tag<span class="Delimiter">)</span> <span class="Identifier">return</span> p<span class="Delimiter">;</span> -<span id="L238" class="LineNr">238 </span> <span class="Identifier">return</span> c<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L238" class="LineNr">238 </span> <span class="Identifier">return</span> c<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L239" class="LineNr">239 </span><span class="Delimiter">}</span> <span id="L240" class="LineNr">240 </span> <span id="L241" class="LineNr">241 </span><span class="Comment">//: overload 'call' for continuations</span> @@ -306,19 +306,19 @@ if ('onhashchange' in window) { <span id="L243" class="LineNr">243 </span><span class="Normal">if</span> <span class="Delimiter">(</span>is_mu_continuation<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><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> <span id="L244" class="LineNr">244 </span> <span class="Comment">// copy multiple calls on to current call stack</span> <span id="L245" class="LineNr">245 </span> assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)));</span> -<span id="L246" class="LineNr">246 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"calling continuation "</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> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L246" class="LineNr">246 </span> <a href='003trace.cc.html#L190'>trace</a><span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"calling continuation "</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> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L247" class="LineNr">247 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Delimited_continuation<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> -<span id="L248" class="LineNr">248 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"no such delimited continuation "</span> << <a href='026call.cc.html#L89'>current_instruction</a><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="cSpecial">'\n'</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L248" class="LineNr">248 </span> <a href='003trace.cc.html#L197'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"no such delimited continuation "</span> << <a href='026call.cc.html#L89'>current_instruction</a><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="cSpecial">'\n'</span> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L249" class="LineNr">249 </span> <span class="Normal">const</span> call_stack& new_frames = get<span class="Delimiter">(</span>Delimited_continuation<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>frames<span class="Delimiter">;</span> <span id="L250" class="LineNr">250 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>call_stack::const_reverse_iterator p = new_frames<span class="Delimiter">.</span>rbegin<span class="Delimiter">();</span> p != new_frames<span class="Delimiter">.</span>rend<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span id="L251" class="LineNr">251 </span> Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>push_front<span class="Delimiter">(</span>*p<span class="Delimiter">);</span> <span id="L252" class="LineNr">252 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L253" class="LineNr">253 </span> Trace_stream<span class="Delimiter">-></span>callstack_depth += <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>new_frames<span class="Delimiter">);</span> -<span id="L254" class="LineNr">254 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"calling delimited continuation; growing callstack depth to "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L254" class="LineNr">254 </span> <a href='003trace.cc.html#L190'>trace</a><span class="Delimiter">(</span><span class="Constant">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"calling delimited continuation; growing callstack depth to "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L255" class="LineNr">255 </span> assert<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>callstack_depth < <span class="Constant">9000</span><span class="Delimiter">);</span> <span class="Comment">// 9998-101 plus cushion</span> <span id="L256" class="LineNr">256 </span> <span class="Delimiter">}</span> <span id="L257" class="LineNr">257 </span> <span class="Comment">// no call housekeeping; continuations don't support next-ingredient</span> -<span id="L258" class="LineNr">258 </span> copy<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">drop continuation</span><span class="Comment">*/</span>++ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>products<span class="Delimiter">,</span> products<span class="Delimiter">.</span>begin<span class="Delimiter">()));</span> +<span id="L258" class="LineNr">258 </span> copy<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">drop continuation</span><span class="Comment">*/</span>++ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span><a href='003trace.cc.html#L226'>end</a><span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>products<span class="Delimiter">,</span> products<span class="Delimiter">.</span>begin<span class="Delimiter">()));</span> <span id="L259" class="LineNr">259 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// record results of resuming 'return-continuation-until-mark' instruction</span> <span id="L260" class="LineNr">260 </span><span class="Delimiter">}</span> <span id="L261" class="LineNr">261 </span> @@ -379,7 +379,7 @@ if ('onhashchange' in window) { <span id="L316" class="LineNr">316 </span><span class="Delimiter">}</span> <span id="L317" class="LineNr">317 </span><span class="Delimiter">:(code)</span> <span id="L318" class="LineNr">318 </span><span class="Normal">void</span> resolve_indirect_continuation_call<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">,</span> <span class="Normal">int</span> index<span class="Delimiter">,</span> instruction& inst<span class="Delimiter">,</span> <span class="Normal">const</span> recipe& caller_recipe<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L319" class="LineNr">319 </span> <a href='010vm.cc.html#L32'>instruction</a> inst2<span class="Delimiter">;</span> +<span id="L319" class="LineNr">319 </span> <a href='010vm.cc.html#L33'>instruction</a> inst2<span class="Delimiter">;</span> <span id="L320" class="LineNr">320 </span> inst2<span class="Delimiter">.</span>name = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip mark</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">).</span>name<span class="Delimiter">;</span> <span id="L321" class="LineNr">321 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip mark and <a href='010vm.cc.html#L19'>recipe</a></span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span id="L322" class="LineNr">322 </span> inst2<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> @@ -387,7 +387,7 @@ if ('onhashchange' in window) { <span id="L324" class="LineNr">324 </span> inst2<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<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 id="L325" class="LineNr">325 </span> <a href='054static_dispatch.cc.html#L173'>resolve_ambiguous_call</a><span class="Delimiter">(</span>r<span class="Delimiter">,</span> index<span class="Delimiter">,</span> inst2<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">);</span> <span id="L326" class="LineNr">326 </span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip mark</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">).</span>name = inst2<span class="Delimiter">.</span>name<span class="Delimiter">;</span> -<span id="L327" class="LineNr">327 </span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip mark</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='010vm.cc.html#L66'>set_value</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> inst2<span class="Delimiter">.</span>name<span class="Delimiter">));</span> +<span id="L327" class="LineNr">327 </span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip mark</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='010vm.cc.html#L67'>set_value</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> inst2<span class="Delimiter">.</span>name<span class="Delimiter">));</span> <span id="L328" class="LineNr">328 </span><span class="Delimiter">}</span> <span id="L329" class="LineNr">329 </span> <span id="L330" class="LineNr">330 </span><span class="Delimiter">:(scenario call_shape_shifting_recipe_with_continuation_mark_and_no_outputs)</span> @@ -423,13 +423,13 @@ if ('onhashchange' in window) { <span id="L360" class="LineNr">360 </span><span class="Delimiter">}</span> <span id="L361" class="LineNr">361 </span> <span id="L362" class="LineNr">362 </span><span class="Comment">// helper for debugging</span> -<span id="L363" class="LineNr">363 </span><span class="Normal">void</span> <a href='003trace.cc.html#L120'>dump</a><span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">int</span> continuation_id<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L363" class="LineNr">363 </span><span class="Normal">void</span> dump<span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">int</span> continuation_id<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span id="L364" class="LineNr">364 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Delimited_continuation<span class="Delimiter">,</span> continuation_id<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L365" class="LineNr">365 </span> <a href='003trace.cc.html#L174'>raise</a> << <span class="Constant">"missing delimited continuation: "</span> << continuation_id << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> +<span id="L365" class="LineNr">365 </span> <a href='003trace.cc.html#L197'>raise</a> << <span class="Constant">"missing delimited continuation: "</span> << continuation_id << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L226'>end</a><span class="Delimiter">();</span> <span id="L366" class="LineNr">366 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span id="L367" class="LineNr">367 </span> <span class="Delimiter">}</span> <span id="L368" class="LineNr">368 </span> delimited_continuation& curr = get<span class="Delimiter">(</span>Delimited_continuation<span class="Delimiter">,</span> continuation_id<span class="Delimiter">);</span> -<span id="L369" class="LineNr">369 </span> <a href='003trace.cc.html#L120'>dump</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span>frames<span class="Delimiter">);</span> +<span id="L369" class="LineNr">369 </span> dump<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>frames<span class="Delimiter">);</span> <span id="L370" class="LineNr">370 </span><span class="Delimiter">}</span> </pre> </body> |