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| author | Kartik K. Agaram <vc@akkartik.com> | 2015-07-12 00:11:56 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2015-07-12 00:11:56 -0700 |
| commit | d5d908dda655c791329563522faad42d7e4ee618 (patch) | |
| tree | 628b8a23e13878c45ef39dfbffb860c676da5304 /html/036call_reply.cc.html | |
| parent | 9864bdd0792b697d7b03e692ba7f82cf5669c41c (diff) | |
| download | mu-d5d908dda655c791329563522faad42d7e4ee618.tar.gz | |
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Diffstat (limited to 'html/036call_reply.cc.html')
| -rw-r--r-- | html/036call_reply.cc.html | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/html/036call_reply.cc.html b/html/036call_reply.cc.html new file mode 100644 index 00000000..2738d935 --- /dev/null +++ b/html/036call_reply.cc.html @@ -0,0 +1,215 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - 036call_reply.cc</title> +<meta name="Generator" content="Vim/7.4"> +<meta name="plugin-version" content="vim7.4_v1"> +<meta name="syntax" content="cpp"> +<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; } +body { font-family: monospace; color: #eeeeee; background-color: #080808; } +* { font-size: 1.05em; } +.traceContains { color: #008000; } +.cSpecial { color: #008000; } +.Constant { color: #00a0a0; } +.Comment { color: #9090ff; } +.Delimiter { color: #a04060; } +.Special { color: #ff6060; } +.CommentedCode { color: #6c6c6c; } +.Identifier { color: #804000; } +--> +</style> + +<script type='text/javascript'> +<!-- + +--> +</script> +</head> +<body> +<pre id='vimCodeElement'> +<span class="Comment">//: Calls can also generate products, using 'reply'.</span> + +<span class="Delimiter">:(scenario reply)</span> +recipe main [ + <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>f <span class="Constant">34</span>:literal +] +recipe f [ + <span class="Constant">12</span>:number<span class="Special"> <- </span>next-ingredient + <span class="Constant">13</span>:number<span class="Special"> <- </span>add <span class="Constant">1</span>:literal<span class="Delimiter">,</span> <span class="Constant">12</span>:number + reply <span class="Constant">12</span>:number<span class="Delimiter">,</span> <span class="Constant">13</span>:number +] +<span class="traceContains">+mem: storing 34 in location 1</span> +<span class="traceContains">+mem: storing 35 in location 2</span> + +<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span> +REPLY<span class="Delimiter">,</span> +<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span> +Recipe_ordinal[<span class="Constant">"reply"</span>] = REPLY<span class="Delimiter">;</span> +<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span> +case REPLY: <span class="Delimiter">{</span> + <span class="Comment">// Starting Reply</span> + const instruction& reply_inst = current_instruction<span class="Delimiter">();</span> <span class="Comment">// save pointer into recipe before pop</span> + const string& callee = current_recipe_name<span class="Delimiter">();</span> + --Callstack_depth<span class="Delimiter">;</span> +<span class="CommentedCode">//? if (tb_is_active()) { //? 1</span> +<span class="CommentedCode">//? tb_clear(); //? 1</span> +<span class="CommentedCode">//? cerr << Recipe[Current_routine->calls.front().running_recipe].name << ' ' << current_step_index() << '\n'; //? 1</span> +<span class="CommentedCode">//? } //? 1</span> + Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>pop_front<span class="Delimiter">();</span> + <span class="Comment">// just in case 'main' returns a value, drop it for now</span> + if <span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">goto</span> stop_running_current_routine<span class="Delimiter">;</span> + const instruction& caller_instruction = current_instruction<span class="Delimiter">();</span> + <span class="Comment">// make reply results available to caller</span> + copy<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span>end<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 class="Comment">// check that any reply ingredients with /same-as-ingredient connect up</span> + <span class="Comment">// the corresponding ingredient and product in the caller.</span> + if <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">)</span> > SIZE<span class="Delimiter">(</span>ingredients<span class="Delimiter">))</span> + raise << <span class="Constant">"too few values replied from "</span> << callee << <span class="cSpecial">'\n'</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_instruction<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span class="CommentedCode">//? cerr << Recipe[Current_routine->calls.front().running_recipe].name << '\n'; //? 1</span> + trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"result "</span> << i << <span class="Constant">" is "</span> << to_string<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> + if <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>reply_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> + vector<string> tmp = property<span class="Delimiter">(</span>reply_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> + assert<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>tmp<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">);</span> + long long int ingredient_index = to_integer<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span> + if <span class="Delimiter">(</span>ingredient_index >= SIZE<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">))</span> + raise << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">": 'same-as-ingredient' metadata overflows ingredients in: "</span> << caller_instruction<span class="Delimiter">.</span>to_string<span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span class="CommentedCode">//? cerr << caller_instruction.products.size() << ' ' << i << ' ' << caller_instruction.ingredients.size() << ' ' << ingredient_index << '\n'; //? 1</span> +<span class="CommentedCode">//? cerr << caller_instruction.to_string() << '\n'; //? 1</span> + if <span class="Delimiter">(</span>!is_dummy<span class="Delimiter">(</span>caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> && caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>value != caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">).</span>value<span class="Delimiter">)</span> + raise << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">": 'same-as-ingredient' result "</span> << caller_instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>value << <span class="Constant">" from call to "</span> << callee << <span class="Constant">" must be location "</span> << caller_instruction<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>ingredient_index<span class="Delimiter">).</span>value << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> + <span class="Delimiter">}</span> + <span class="Delimiter">}</span> + <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// continue to process rest of *caller* instruction</span> +<span class="Delimiter">}</span> + +<span class="Comment">//: Products can include containers and exclusive containers, addresses and arrays.</span> +<span class="Delimiter">:(scenario reply_container)</span> +recipe main [ + <span class="Constant">3</span>:point<span class="Special"> <- </span>f <span class="Constant">2</span>:literal +] +recipe f [ + <span class="Constant">12</span>:number<span class="Special"> <- </span>next-ingredient + <span class="Constant">13</span>:number<span class="Special"> <- </span>copy <span class="Constant">35</span>:literal + reply <span class="Constant">12</span>:point/<span class="Special">raw</span> <span class="Comment"># unsafe</span> +] +<span class="traceContains">+run: result 0 is [2, 35]</span> +<span class="traceContains">+mem: storing 2 in location 3</span> +<span class="traceContains">+mem: storing 35 in location 4</span> + +<span class="Comment">//: In mu we'd like to assume that any instruction doesn't modify its</span> +<span class="Comment">//: ingredients unless they're also products. The /same-as-ingredient inside</span> +<span class="Comment">//: the recipe's 'reply' will help catch accidental misuse of such</span> +<span class="Comment">//: 'ingredient-results' (sometimes called in-out parameters in other languages).</span> + +<span class="Delimiter">:(scenario reply_same_as_ingredient)</span> +<span class="Special">% Hide_warnings = true;</span> +recipe main [ + <span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span>:literal + <span class="Constant">2</span>:number<span class="Special"> <- </span>test1 <span class="Constant">1</span>:number <span class="Comment"># call with different ingredient and product</span> +] +recipe test1 [ + <span class="Constant">10</span>:address:number<span class="Special"> <- </span>next-ingredient + reply <span class="Constant">10</span>:address:number/same-as-ingredient:<span class="Constant">0</span> +] +<span class="traceContains">+warn: main: 'same-as-ingredient' result 2 from call to test1 must be location 1</span> + +<span class="Delimiter">:(scenario reply_same_as_ingredient_dummy)</span> +<span class="Special">% Hide_warnings = true;</span> +recipe main [ + <span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span>:literal + _<span class="Special"> <- </span>test1 <span class="Constant">1</span>:number <span class="Comment"># call with different ingredient and product</span> +] +recipe test1 [ + <span class="Constant">10</span>:address:number<span class="Special"> <- </span>next-ingredient + reply <span class="Constant">10</span>:address:number/same-as-ingredient:<span class="Constant">0</span> +] +$warn: <span class="Constant">0</span> + +<span class="Delimiter">:(code)</span> +string to_string<span class="Delimiter">(</span>const vector<double>& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> + if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">"[]"</span><span class="Delimiter">;</span> + ostringstream out<span class="Delimiter">;</span> + if <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>in<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + out << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> + <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> + <span class="Delimiter">}</span> + out << <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>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> + if <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">", "</span><span class="Delimiter">;</span> + out << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> + <span class="Delimiter">}</span> + out << <span class="Constant">"]"</span><span class="Delimiter">;</span> + <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span class="Delimiter">}</span> + +<span class="Comment">//: Conditional reply.</span> + +<span class="Delimiter">:(scenario reply_if)</span> +recipe main [ + <span class="Constant">1</span>:number<span class="Special"> <- </span>test1 +] +recipe test1 [ + reply-if <span class="Constant">0</span>:literal<span class="Delimiter">,</span> <span class="Constant">34</span>:literal + reply <span class="Constant">35</span>:literal +] +<span class="traceContains">+mem: storing 35 in location 1</span> + +<span class="Delimiter">:(scenario reply_if2)</span> +recipe main [ + <span class="Constant">1</span>:number<span class="Special"> <- </span>test1 +] +recipe test1 [ + reply-if <span class="Constant">1</span>:literal<span class="Delimiter">,</span> <span class="Constant">34</span>:literal + reply <span class="Constant">35</span>:literal +] +<span class="traceContains">+mem: storing 34 in location 1</span> + +<span class="Delimiter">:(before "End Rewrite Instruction(curr)")</span> +<span class="Comment">// rewrite `reply-if a, b, c, ...` to</span> +<span class="Comment">// ```</span> +<span class="Comment">// jump-unless a, 1:offset</span> +<span class="Comment">// reply b, c, ...</span> +<span class="Comment">// ```</span> +if <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"reply-if"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> + curr<span class="Delimiter">.</span>operation = Recipe_ordinal[<span class="Constant">"jump-unless"</span>]<span class="Delimiter">;</span> + curr<span class="Delimiter">.</span>name = <span class="Constant">"jump-unless"</span><span class="Delimiter">;</span> + vector<reagent> results<span class="Delimiter">;</span> + copy<span class="Delimiter">(</span>++curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>results<span class="Delimiter">,</span> results<span class="Delimiter">.</span>end<span class="Delimiter">()));</span> + curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> + curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span><span class="Constant">"1:offset"</span><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> + curr<span class="Delimiter">.</span>operation = Recipe_ordinal[<span class="Constant">"reply"</span>]<span class="Delimiter">;</span> + curr<span class="Delimiter">.</span>name = <span class="Constant">"reply"</span><span class="Delimiter">;</span> + curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>swap<span class="Delimiter">(</span>results<span class="Delimiter">);</span> +<span class="Delimiter">}</span> +<span class="Comment">// rewrite `reply-unless a, b, c, ...` to</span> +<span class="Comment">// ```</span> +<span class="Comment">// jump-if a, 1:offset</span> +<span class="Comment">// reply b, c, ...</span> +<span class="Comment">// ```</span> +if <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"reply-unless"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> + curr<span class="Delimiter">.</span>operation = Recipe_ordinal[<span class="Constant">"jump-if"</span>]<span class="Delimiter">;</span> + curr<span class="Delimiter">.</span>name = <span class="Constant">"jump-if"</span><span class="Delimiter">;</span> + vector<reagent> results<span class="Delimiter">;</span> + copy<span class="Delimiter">(</span>++curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>results<span class="Delimiter">,</span> results<span class="Delimiter">.</span>end<span class="Delimiter">()));</span> + curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> + curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span><span class="Constant">"1:offset"</span><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> + curr<span class="Delimiter">.</span>operation = Recipe_ordinal[<span class="Constant">"reply"</span>]<span class="Delimiter">;</span> + curr<span class="Delimiter">.</span>name = <span class="Constant">"reply"</span><span class="Delimiter">;</span> + curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>swap<span class="Delimiter">(</span>results<span class="Delimiter">);</span> +<span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |