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<span class="Comment">//: Clean syntax to manipulate and check the console in scenarios.</span>
<span class="Comment">//: Instruction 'assume-console' implicitly creates a variable called</span>
<span class="Comment">//: 'console' that is accessible inside other 'run' instructions in the</span>
<span class="Comment">//: scenario. Like with the fake screen, 'assume-console' transparently</span>
<span class="Comment">//: supports unicode.</span>
<span class="Delimiter">:(scenarios run_mu_scenario)</span>
<span class="Delimiter">:(scenario keyboard_in_scenario)</span>
scenario keyboard-in-scenario [
assume-console [
type [abc]
]
run [
<span class="Constant">1</span>:character<span class="Delimiter">,</span> console:address<span class="Delimiter">,</span> <span class="Constant">2</span>:boolean<span class="Special"> <- </span>read-key console:address
<span class="Constant">3</span>:character<span class="Delimiter">,</span> console:address<span class="Delimiter">,</span> <span class="Constant">4</span>:boolean<span class="Special"> <- </span>read-key console:address
<span class="Constant">5</span>:character<span class="Delimiter">,</span> console:address<span class="Delimiter">,</span> <span class="Constant">6</span>:boolean<span class="Special"> <- </span>read-key console:address
<span class="Constant">7</span>:character<span class="Delimiter">,</span> console:address<span class="Delimiter">,</span> <span class="Constant">8</span>:boolean<span class="Delimiter">,</span> <span class="Constant">9</span>:boolean<span class="Special"> <- </span>read-key console:address
]
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">97</span> <span class="Comment"># 'a'</span>
<span class="Constant">2</span><span class="Special"> <- </span><span class="Constant">1</span>
<span class="Constant">3</span><span class="Special"> <- </span><span class="Constant">98</span> <span class="Comment"># 'b'</span>
<span class="Constant">4</span><span class="Special"> <- </span><span class="Constant">1</span>
<span class="Constant">5</span><span class="Special"> <- </span><span class="Constant">99</span> <span class="Comment"># 'c'</span>
<span class="Constant">6</span><span class="Special"> <- </span><span class="Constant">1</span>
<span class="Constant">7</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unset</span>
<span class="Constant">8</span><span class="Special"> <- </span><span class="Constant">1</span>
<span class="Constant">9</span><span class="Special"> <- </span><span class="Constant">1</span> <span class="Comment"># end of test events</span>
]
]
<span class="Delimiter">:(before "End Scenario Globals")</span>
<span class="Normal">const</span> <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> CONSOLE = Next_predefined_global_for_scenarios++<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Special Scenario Variable Names(r)")</span>
Name[r][<span class="Constant">"console"</span>] = CONSOLE<span class="Delimiter">;</span>
<span class="Comment">//: allow naming just for 'console'</span>
<span class="Delimiter">:(before "End is_special_name Cases")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">"console"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Comment">//: Unlike assume-keyboard, assume-console is easiest to implement as just a</span>
<span class="Comment">//: primitive recipe.</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
ASSUME_CONSOLE<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"assume-console"</span>] = ASSUME_CONSOLE<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> ASSUME_CONSOLE: <span class="Delimiter">{</span>
<span class="CommentedCode">//? cerr << "aaa: " << current_instruction().ingredients.at(0).name << '\n'; //? 2</span>
<span class="Comment">// create a temporary recipe just for parsing; it won't contain valid instructions</span>
istringstream in<span class="Delimiter">(</span><span class="Constant">"["</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>name + <span class="Constant">"]"</span><span class="Delimiter">);</span>
recipe r = slurp_recipe<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> num_events = count_events<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
<span class="CommentedCode">//? cerr << "fff: " << num_events << '\n'; //? 3</span>
<span class="Comment">// initialize the events</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> size = num_events*size_of_event<span class="Delimiter">()</span> + <span class="Comment">/*</span><span class="Comment">space for length</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
ensure_space<span class="Delimiter">(</span>size<span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> event_data_address = Current_routine<span class="Delimiter">-></span>alloc<span class="Delimiter">;</span>
Memory[event_data_address] = num_events<span class="Delimiter">;</span>
++Current_routine<span class="Delimiter">-></span>alloc<span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">const</span> instruction& curr = r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"left-click"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc] = <span class="Comment">/*</span><span class="Comment">tag for 'touch-event' variant of 'event' exclusive-container</span><span class="Comment">*/</span><span class="Constant">2</span><span class="Delimiter">;</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc+<span class="Constant">1</span>+<span class="Comment">/*</span><span class="Comment">offset of 'type' in 'mouse-event'</span><span class="Comment">*/</span><span class="Constant">0</span>] = TB_KEY_MOUSE_LEFT<span class="Delimiter">;</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc+<span class="Constant">1</span>+<span class="Comment">/*</span><span class="Comment">offset of 'row' in 'mouse-event'</span><span class="Comment">*/</span><span class="Constant">1</span>] = to_integer<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc+<span class="Constant">1</span>+<span class="Comment">/*</span><span class="Comment">offset of 'column' in 'mouse-event'</span><span class="Comment">*/</span><span class="Constant">2</span>] = to_integer<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
<span class="CommentedCode">//? cerr << "AA left click: " << Memory[Current_routine->alloc+2] << ' ' << Memory[Current_routine->alloc+3] << '\n'; //? 1</span>
Current_routine<span class="Delimiter">-></span>alloc += size_of_event<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"press"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc] = <span class="Comment">/*</span><span class="Comment">tag for 'keycode' variant of 'event' exclusive-container</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc+<span class="Constant">1</span>] = to_integer<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
<span class="CommentedCode">//? cerr << "AA press: " << Memory[Current_routine->alloc+1] << '\n'; //? 3</span>
Current_routine<span class="Delimiter">-></span>alloc += size_of_event<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Event Handlers</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Comment">// keyboard input</span>
assert<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"type"</span><span class="Delimiter">);</span>
<span class="Normal">const</span> string& contents = curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">;</span>
<span class="Normal">const</span> <span class="Normal">char</span>* raw_contents = contents<span class="Delimiter">.</span>c_str<span class="Delimiter">();</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> num_keyboard_events = unicode_length<span class="Delimiter">(</span>contents<span class="Delimiter">);</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> curr = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "AAA: " << num_keyboard_events << '\n'; //? 1</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < num_keyboard_events<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc] = <span class="Comment">/*</span><span class="Comment">tag for 'text' variant of 'event' exclusive-container</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">uint32_t</span> curr_character<span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>curr < SIZE<span class="Delimiter">(</span>contents<span class="Delimiter">));</span>
tb_utf8_char_to_unicode<span class="Delimiter">(</span>&curr_character<span class="Delimiter">,</span> &raw_contents[curr]<span class="Delimiter">);</span>
<span class="CommentedCode">//? cerr << "AA keyboard: " << curr_character << '\n'; //? 3</span>
Memory[Current_routine<span class="Delimiter">-></span>alloc+<span class="Comment">/*</span><span class="Comment">skip exclusive container tag</span><span class="Comment">*/</span><span class="Constant">1</span>] = curr_character<span class="Delimiter">;</span>
curr += tb_utf8_char_length<span class="Delimiter">(</span>raw_contents[curr]<span class="Delimiter">);</span>
Current_routine<span class="Delimiter">-></span>alloc += size_of_event<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
assert<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>alloc == event_data_address+size<span class="Delimiter">);</span>
<span class="Comment">// wrap the array of events in an event object</span>
ensure_space<span class="Delimiter">(</span>size_of_events<span class="Delimiter">());</span>
Memory[CONSOLE] = Current_routine<span class="Delimiter">-></span>alloc<span class="Delimiter">;</span>
Current_routine<span class="Delimiter">-></span>alloc += size_of_events<span class="Delimiter">();</span>
<span class="CommentedCode">//? cerr << "writing " << event_data_address << " to location " << Memory[CONSOLE]+1 << '\n'; //? 1</span>
Memory[Memory[CONSOLE]+<span class="Comment">/*</span><span class="Comment">offset of 'data' in container 'events'</span><span class="Comment">*/</span><span class="Constant">1</span>] = event_data_address<span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << Memory[Memory[CONSOLE]+1] << '\n'; //? 1</span>
<span class="CommentedCode">//? cerr << "alloc now " << Current_routine->alloc << '\n'; //? 1</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario events_in_scenario)</span>
scenario events-in-scenario [
assume-console [
type [abc]
left-click <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span>
press <span class="Constant">65515</span> <span class="Comment"># up arrow</span>
type [d]
]
run [
<span class="Comment"># 3 keyboard events; each event occupies 4 locations</span>
<span class="CommentedCode">#? $start-tracing #? 2</span>
<span class="Constant">1</span>:event<span class="Special"> <- </span>read-event console:address
<span class="Constant">5</span>:event<span class="Special"> <- </span>read-event console:address
<span class="Constant">9</span>:event<span class="Special"> <- </span>read-event console:address
<span class="Comment"># mouse click</span>
<span class="Constant">13</span>:event<span class="Special"> <- </span>read-event console:address
<span class="Comment"># non-character keycode</span>
<span class="Constant">17</span>:event<span class="Special"> <- </span>read-event console:address
<span class="Comment"># final keyboard event</span>
<span class="Constant">21</span>:event<span class="Special"> <- </span>read-event console:address
]
memory-should-contain [
<span class="Constant">1</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># 'text'</span>
<span class="Constant">2</span><span class="Special"> <- </span><span class="Constant">97</span> <span class="Comment"># 'a'</span>
<span class="Constant">3</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">4</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">5</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># 'text'</span>
<span class="Constant">6</span><span class="Special"> <- </span><span class="Constant">98</span> <span class="Comment"># 'b'</span>
<span class="Constant">7</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">8</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">9</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># 'text'</span>
<span class="Constant">10</span><span class="Special"> <- </span><span class="Constant">99</span> <span class="Comment"># 'c'</span>
<span class="Constant">11</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">12</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">13</span><span class="Special"> <- </span><span class="Constant">2</span> <span class="Comment"># 'mouse'</span>
<span class="Constant">14</span><span class="Special"> <- </span><span class="Constant">65513</span> <span class="Comment"># mouse click</span>
<span class="Constant">15</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># row</span>
<span class="Constant">16</span><span class="Special"> <- </span><span class="Constant">1</span> <span class="Comment"># column</span>
<span class="Constant">17</span><span class="Special"> <- </span><span class="Constant">1</span> <span class="Comment"># 'keycode'</span>
<span class="Constant">18</span><span class="Special"> <- </span><span class="Constant">65515</span> <span class="Comment"># up arrow</span>
<span class="Constant">19</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">20</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">21</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># 'text'</span>
<span class="Constant">22</span><span class="Special"> <- </span><span class="Constant">100</span> <span class="Comment"># 'd'</span>
<span class="Constant">23</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">24</span><span class="Special"> <- </span><span class="Constant">0</span> <span class="Comment"># unused</span>
<span class="Constant">25</span><span class="Special"> <- </span><span class="Constant">0</span>
]
]
<span class="Comment">//: Deal with special keys and unmatched brackets by allowing each test to</span>
<span class="Comment">//: independently choose the unicode symbol to denote them.</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
REPLACE_IN_CONSOLE<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"replace-in-console"</span>] = REPLACE_IN_CONSOLE<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> REPLACE_IN_CONSOLE: <span class="Delimiter">{</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 class="CommentedCode">//? cerr << "console: " << Memory[CONSOLE] << '\n'; //? 1</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Memory[CONSOLE]<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"console not initialized</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="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> console_data = Memory[Memory[CONSOLE]+<span class="Constant">1</span>]<span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "console data starts at " << console_data << '\n'; //? 1</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> size = Memory[console_data]<span class="Delimiter">;</span> <span class="Comment">// array size</span>
<span class="CommentedCode">//? cerr << "size of console data is " << size << '\n'; //? 1</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">,</span> curr = console_data+<span class="Constant">1</span><span class="Delimiter">;</span> i < size<span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> curr+=size_of_event<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//? cerr << curr << '\n'; //? 1</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Memory[curr] != <span class="Comment">/*</span><span class="Comment">text</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Memory[curr+<span class="Constant">1</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 class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> n = <span class="Constant">0</span><span class="Delimiter">;</span> n < size_of_event<span class="Delimiter">();</span> ++n<span class="Delimiter">)</span>
Memory[curr+n] = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span>n<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> count_events<span class="Delimiter">(</span><span class="Normal">const</span> recipe& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>r<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">const</span> instruction& curr = r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="CommentedCode">//? cerr << "aa: " << curr.name << '\n'; //? 3</span>
<span class="CommentedCode">//? cerr << "bb: " << curr.ingredients.at(0).name << '\n'; //? 1</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"type"</span><span class="Delimiter">)</span>
result += unicode_length<span class="Delimiter">(</span>curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
<span class="Normal">else</span>
result++<span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "cc: " << result << '\n'; //? 1</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> size_of_event<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Comment">// memoize result if already computed</span>
<span class="Normal">static</span> <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
vector<type_ordinal> type<span class="Delimiter">;</span>
type<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"event"</span>]<span class="Delimiter">);</span>
result = size_of<span class="Delimiter">(</span>type<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> size_of_events<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Comment">// memoize result if already computed</span>
<span class="Normal">static</span> <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
vector<type_ordinal> type<span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"console"</span>]<span class="Delimiter">);</span>
type<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Type_ordinal[<span class="Constant">"console"</span>]<span class="Delimiter">);</span>
result = size_of<span class="Delimiter">(</span>type<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
</pre>
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