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diff --git a/html/034call.cc.html b/html/034call.cc.html deleted file mode 100644 index 17a302a6..00000000 --- a/html/034call.cc.html +++ /dev/null @@ -1,207 +0,0 @@ -<!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 - 034call.cc</title> -<meta name="Generator" content="Vim/7.4"> -<meta name="plugin-version" content="vim7.4_v2"> -<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-size: 12pt; font-family: monospace; color: #eeeeee; background-color: #080808; } -* { font-size: 12pt; font-size: 1em; } -.Constant { color: #00a0a0; } -.cSpecial { color: #008000; } -.traceContains { color: #008000; } -.SalientComment { color: #00ffff; } -.Comment { color: #9090ff; } -.Delimiter { color: #800080; } -.Special { color: #c00000; } -.Identifier { color: #fcb165; } -.Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; } ---> -</style> - -<script type='text/javascript'> -<!-- - ---> -</script> -</head> -<body> -<pre id='vimCodeElement'> -<span class="Comment">//: So far the recipes we define can't run each other. Let's fix that.</span> - -<span class="Delimiter">:(scenario calling_recipe)</span> -def main [ - f -] -def f [ - <span class="Constant">3</span>:number<span class="Special"> <- </span>add <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">2</span> -] -<span class="traceContains">+mem: storing 4 in location 3</span> - -<span class="Delimiter">:(scenario return_on_fallthrough)</span> -def main [ - f - <span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span> - <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span> - <span class="Constant">3</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span> -] -def f [ - <span class="Constant">4</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span> - <span class="Constant">5</span>:number<span class="Special"> <- </span>copy <span class="Constant">0</span> -] -<span class="traceContains">+run: f</span> -<span class="Comment"># running f</span> -<span class="traceContains">+run: {4: "number"} <- copy {0: "literal"}</span> -<span class="traceContains">+run: {5: "number"} <- copy {0: "literal"}</span> -<span class="Comment"># back out to main</span> -<span class="traceContains">+run: {1: "number"} <- copy {0: "literal"}</span> -<span class="traceContains">+run: {2: "number"} <- copy {0: "literal"}</span> -<span class="traceContains">+run: {3: "number"} <- copy {0: "literal"}</span> - -<span class="Delimiter">:(before "struct routine {")</span> -<span class="Comment">// Everytime a recipe runs another, we interrupt it and start running the new</span> -<span class="Comment">// recipe. When that finishes, we continue this one where we left off.</span> -<span class="Comment">// This requires maintaining a 'stack' of interrupted recipes or 'calls'.</span> -<span class="Normal">struct</span> call <span class="Delimiter">{</span> - recipe_ordinal running_recipe<span class="Delimiter">;</span> - <span class="Normal">int</span> running_step_index<span class="Delimiter">;</span> - <span class="Comment">// End call Fields</span> - call<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span> - running_recipe = r<span class="Delimiter">;</span> - running_step_index = <span class="Constant">0</span><span class="Delimiter">;</span> - <span class="Comment">// End call Constructor</span> - <span class="Delimiter">}</span> - ~call<span class="Delimiter">()</span> <span class="Delimiter">{</span> - <span class="Comment">// End call Destructor</span> - <span class="Delimiter">}</span> -<span class="Delimiter">};</span> -<span class="Normal">typedef</span> list<call> call_stack<span class="Delimiter">;</span> - -<span class="Delimiter">:(replace{} "struct routine")</span> -<span class="Normal">struct</span> routine <span class="Delimiter">{</span> - call_stack calls<span class="Delimiter">;</span> - <span class="Comment">// End routine Fields</span> - routine<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">);</span> - <span class="Normal">bool</span> completed<span class="Delimiter">()</span> <span class="Normal">const</span><span class="Delimiter">;</span> - <span class="Normal">const</span> vector<instruction>& steps<span class="Delimiter">()</span> <span class="Normal">const</span><span class="Delimiter">;</span> -<span class="Delimiter">};</span> -<span class="Delimiter">:(code)</span> -routine::routine<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span> - ++Trace_stream<span class="Delimiter">-></span>callstack_depth<span class="Delimiter">;</span> - trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"new routine; incrementing callstack depth to "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << end<span class="Delimiter">();</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 class="Delimiter">}</span> - calls<span class="Delimiter">.</span>push_front<span class="Delimiter">(</span>call<span class="Delimiter">(</span>r<span class="Delimiter">));</span> - <span class="Comment">// End routine Constructor</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(code)</span> -<span class="Normal">inline</span> call& current_call<span class="Delimiter">()</span> <span class="Delimiter">{</span> - <span class="Identifier">return</span> Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>front<span class="Delimiter">();</span> -<span class="Delimiter">}</span> - -<span class="SalientComment">//:: now update routine's helpers</span> - -<span class="Delimiter">:(replace{} "inline int& current_step_index()")</span> -<span class="Normal">inline</span> <span class="Normal">int</span>& current_step_index<span class="Delimiter">()</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> - <span class="Identifier">return</span> current_call<span class="Delimiter">().</span>running_step_index<span class="Delimiter">;</span> -<span class="Delimiter">}</span> -<span class="Delimiter">:(replace{} "inline const string& current_recipe_name()")</span> -<span class="Normal">inline</span> <span class="Normal">const</span> string& current_recipe_name<span class="Delimiter">()</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> - <span class="Identifier">return</span> get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> current_call<span class="Delimiter">().</span>running_recipe<span class="Delimiter">).</span>name<span class="Delimiter">;</span> -<span class="Delimiter">}</span> -<span class="Delimiter">:(replace{} "inline const instruction& current_instruction()")</span> -<span class="Normal">inline</span> <span class="Normal">const</span> instruction& current_instruction<span class="Delimiter">()</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> - <span class="Identifier">return</span> to_instruction<span class="Delimiter">(</span>current_call<span class="Delimiter">());</span> -<span class="Delimiter">}</span> -<span class="Delimiter">:(code)</span> -<span class="Normal">inline</span> <span class="Normal">const</span> instruction& to_instruction<span class="Delimiter">(</span><span class="Normal">const</span> call& call<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Identifier">return</span> get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> call<span class="Delimiter">.</span>running_recipe<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>call<span class="Delimiter">.</span>running_step_index<span class="Delimiter">);</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(after "Defined Recipe Checks")</span> -<span class="Comment">// not a primitive; check that it's present in the book of recipes</span> -<span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>operation<span class="Delimiter">))</span> <span class="Delimiter">{</span> - raise << maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"undefined operation in '"</span> << to_original_string<span class="Delimiter">(</span>inst<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">break</span><span class="Delimiter">;</span> -<span class="Delimiter">}</span> -<span class="Delimiter">:(replace{} "default:" following "End Primitive Recipe Implementations")</span> -<span class="Normal">default</span>: <span class="Delimiter">{</span> - <span class="Normal">const</span> instruction& call_instruction = current_instruction<span class="Delimiter">();</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>Recipe<span class="Delimiter">.</span>find<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>operation<span class="Delimiter">)</span> == Recipe<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span> <span class="Comment">// duplicate from Checks</span> - <span class="Comment">// stop running this instruction immediately</span> - ++current_step_index<span class="Delimiter">();</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - <span class="Comment">// not a primitive; look up the book of recipes</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span> - ++Trace_stream<span class="Delimiter">-></span>callstack_depth<span class="Delimiter">;</span> - trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"incrementing callstack depth to "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << end<span class="Delimiter">();</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 class="Delimiter">}</span> - Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>push_front<span class="Delimiter">(</span>call<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>operation<span class="Delimiter">));</span> - finish_call_housekeeping<span class="Delimiter">(</span>call_instruction<span class="Delimiter">,</span> ingredients<span class="Delimiter">);</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// not done with caller; don't increment step_index of caller</span> -<span class="Delimiter">}</span> -<span class="Delimiter">:(code)</span> -<span class="Normal">void</span> finish_call_housekeeping<span class="Delimiter">(</span><span class="Normal">const</span> instruction& call_instruction<span class="Delimiter">,</span> <span class="Normal">const</span> vector<vector<<span class="Normal">double</span>> >& ingredients<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Comment">// End Call Housekeeping</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(scenario calling_undefined_recipe_fails)</span> -<span class="Special">% Hide_errors = true;</span> -def main [ - foo -] -<span class="traceContains">+error: main: undefined operation in 'foo '</span> - -<span class="Delimiter">:(scenario calling_undefined_recipe_handles_missing_result)</span> -<span class="Special">% Hide_errors = true;</span> -def main [ - <span class="Normal">x</span>:number<span class="Special"> <- </span>foo -] -<span class="traceContains">+error: main: undefined operation in 'x:number <- foo '</span> - -<span class="SalientComment">//:: finally, we need to fix the termination conditions for the run loop</span> - -<span class="Delimiter">:(replace{} "inline bool routine::completed() const")</span> -<span class="Normal">inline</span> <span class="Normal">bool</span> routine::completed<span class="Delimiter">()</span> <span class="Normal">const</span> <span class="Delimiter">{</span> - <span class="Identifier">return</span> calls<span class="Delimiter">.</span>empty<span class="Delimiter">();</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(replace{} "inline const vector<instruction>& routine::steps() const")</span> -<span class="Normal">inline</span> <span class="Normal">const</span> vector<instruction>& routine::steps<span class="Delimiter">()</span> <span class="Normal">const</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>!calls<span class="Delimiter">.</span>empty<span class="Delimiter">());</span> - <span class="Identifier">return</span> get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>running_recipe<span class="Delimiter">).</span>steps<span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(before "Running One Instruction")</span> -<span class="Comment">// when we reach the end of one call, we may reach the end of the one below</span> -<span class="Comment">// it, and the one below that, and so on</span> -<span class="Normal">while</span> <span class="Delimiter">(</span>current_step_index<span class="Delimiter">()</span> >= SIZE<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>steps<span class="Delimiter">()))</span> <span class="Delimiter">{</span> - <span class="Comment">// Falling Through End Of Recipe</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<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">"trace"</span><span class="Delimiter">)</span> << <span class="Constant">"fall-through: exiting "</span> << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">"; decrementing callstack depth from "</span> << Trace_stream<span class="Delimiter">-></span>callstack_depth << end<span class="Delimiter">();</span> - --Trace_stream<span class="Delimiter">-></span>callstack_depth<span class="Delimiter">;</span> - assert<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>callstack_depth >= <span class="Constant">0</span><span class="Delimiter">);</span> - <span class="Delimiter">}</span> - Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>pop_front<span class="Delimiter">();</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> - <span class="Comment">// Complete Call Fallthrough</span> - <span class="Comment">// todo: fail if no products returned</span> - ++current_step_index<span class="Delimiter">();</span> -<span class="Delimiter">}</span> -</pre> -</body> -</html> -<!-- vim: set foldmethod=manual : --> |