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<span class="Comment">//: Helper for various programming environments: run arbitrary mu code and</span>
<span class="Comment">//: return some result in string form.</span>
<span class="Delimiter">:(scenario run_interactive_code)</span>
recipe main [
<span class="Constant">2</span>:address:array:character<span class="Special"> <- </span><span class="Normal">new</span> [<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>:literal]
run-interactive <span class="Constant">2</span>:address:array:character
]
<span class="traceContains">+mem: storing 34 in location 1</span>
<span class="Delimiter">:(scenario run_interactive_empty)</span>
recipe main [
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>run-interactive <span class="Constant">0</span>:literal
]
<span class="Comment"># result is null</span>
<span class="traceContains">+mem: storing 0 in location 1</span>
<span class="Comment">//: run code in 'interactive mode', i.e. with warnings off and return:</span>
<span class="Comment">//: stringified output in case we want to print it to screen</span>
<span class="Comment">//: any warnings encountered</span>
<span class="Comment">//: simulated screen any prints went to</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
RUN_INTERACTIVE<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"run-interactive"</span>] = RUN_INTERACTIVE<span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "run-interactive: " << RUN_INTERACTIVE << '\n'; //? 1</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> RUN_INTERACTIVE: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">": 'run-interactive' requires exactly one ingredient, but got "</span> << current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <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="Delimiter">{</span>
raise << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">": first ingredient of 'run-interactive' should be a literal string, but got "</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 class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">);</span>
<span class="Normal">bool</span> new_code_pushed_to_stack = run_interactive<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 class="Normal">if</span> <span class="Delimiter">(</span>!new_code_pushed_to_stack<span class="Delimiter">)</span> <span class="Delimiter">{</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><span class="Constant">0</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>warnings_from_trace<span class="Delimiter">());</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
clean_up_interactive<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// done with this instruction</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// not done with caller; don't increment current_step_index()</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Globals")</span>
<span class="Normal">bool</span> Running_interactive = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> Old_screen = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// we can support one iteration of screen inside screen</span>
<span class="Delimiter">:(before "End Setup")</span>
Running_interactive = <span class="Constant">false</span><span class="Delimiter">;</span>
Old_screen = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">// reads a string, tries to call it as code (treating it as a test), saving</span>
<span class="Comment">// all warnings.</span>
<span class="Comment">// returns true if successfully called (no errors found during load and transform)</span>
<span class="Normal">bool</span> run_interactive<span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> address<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">"interactive"</span><span class="Delimiter">)</span> == Recipe_ordinal<span class="Delimiter">.</span>end<span class="Delimiter">())</span>
Recipe_ordinal[<span class="Constant">"interactive"</span>] = Next_recipe_ordinal++<span class="Delimiter">;</span>
Old_screen = Memory[SCREEN]<span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "save screen: " << Old_screen << '\n'; //? 2</span>
<span class="Comment">// try to sandbox the run as best you can</span>
<span class="Comment">// todo: test this</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!Current_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// not already sandboxed</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">1</span><span class="Delimiter">;</span> i < Reserved_for_tests<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span>
Memory<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
Name[Recipe_ordinal[<span class="Constant">"interactive"</span>]]<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="CommentedCode">//? cerr << "screen was at " << Name[Recipe_ordinal["interactive"]]["screen"] << '\n'; //? 1</span>
Name[Recipe_ordinal[<span class="Constant">"interactive"</span>]][<span class="Constant">"screen"</span>] = SCREEN<span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "screen now at " << Name[Recipe_ordinal["interactive"]]["screen"] << '\n'; //? 1</span>
string command = trim<span class="Delimiter">(</span>strip_comments<span class="Delimiter">(</span>read_mu_string<span class="Delimiter">(</span>address<span class="Delimiter">)));</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>command<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
Recipe<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>Recipe_ordinal[<span class="Constant">"interactive"</span>]<span class="Delimiter">);</span>
Hide_warnings = <span class="Constant">true</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_file = <span class="Constant">""</span><span class="Delimiter">;</span> <span class="Comment">// if there wasn't already a stream we don't want to save it</span>
Trace_stream = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>collect_layer = <span class="Constant">"warn"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// call run(string) but without the scheduling</span>
<span class="Comment">// we won't create a local scope so that we can get to the new screen after</span>
<span class="Comment">// we return from 'interactive'.</span>
load<span class="Delimiter">(</span>string<span class="Delimiter">(</span><span class="Constant">"recipe interactive [</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">)</span> +
<span class="Constant">"screen:address <- new-fake-screen 30, 5</span><span class="cSpecial">\n</span><span class="Constant">"</span> +
command + <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +
<span class="Constant">"]</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">);</span>
transform_all<span class="Delimiter">();</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"warn"</span><span class="Delimiter">)</span> > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
Running_interactive = <span class="Constant">true</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>Recipe_ordinal[<span class="Constant">"interactive"</span>]<span class="Delimiter">));</span>
<span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario "run_interactive_returns_stringified_result")</span>
recipe main [
<span class="Comment"># try to interactively add 2 and 2</span>
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span><span class="Normal">new</span> [add <span class="Constant">2</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal]
<span class="Constant">2</span>:address:array:character<span class="Special"> <- </span>run-interactive <span class="Constant">1</span>:address:array:character
<span class="Constant">10</span>:array:character<span class="Special"> <- </span>copy <span class="Constant">2</span>:address:array:character/deref
]
<span class="Comment"># first letter in the output should be '4' in unicode</span>
<span class="traceContains">+mem: storing 52 in location 11</span>
<span class="Delimiter">:(scenario "run_interactive_returns_string")</span>
recipe main [
<span class="Comment"># try to interactively add 2 and 2</span>
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span><span class="Normal">new</span> [
<span class="Constant">100</span>:address:array:character<span class="Special"> <- </span><span class="Normal">new</span> [a]
<span class="Constant">101</span>:address:array:character<span class="Special"> <- </span><span class="Normal">new</span> [b]
<span class="Constant">102</span>:address:array:character<span class="Special"> <- </span>string-append <span class="Constant">100</span>:address:array:character<span class="Delimiter">,</span> <span class="Constant">101</span>:address:array:character
]
<span class="Constant">2</span>:address:array:character<span class="Special"> <- </span>run-interactive <span class="Constant">1</span>:address:array:character
<span class="Constant">10</span>:array:character<span class="Special"> <- </span>copy <span class="Constant">2</span>:address:array:character/deref
]
<span class="Comment"># output contains "ab"</span>
<span class="traceContains">+mem: storing 97 in location 11</span>
<span class="traceContains">+mem: storing 98 in location 12</span>
<span class="Delimiter">:(scenario "run_interactive_returns_warnings")</span>
recipe main [
<span class="Comment"># run a command that generates a warning</span>
<span class="Constant">1</span>:address:array:character<span class="Special"> <- </span><span class="Normal">new</span> [get <span class="Constant">1234</span>:number<span class="Delimiter">,</span> foo:offset]
<span class="Constant">2</span>:address:array:character<span class="Delimiter">,</span> <span class="Constant">3</span>:address:array:character<span class="Special"> <- </span>run-interactive <span class="Constant">1</span>:address:array:character
<span class="Constant">10</span>:array:character<span class="Special"> <- </span>copy <span class="Constant">3</span>:address:array:character/deref
]
<span class="Comment"># warning should be "unknown element foo in container number"</span>
<span class="traceContains">+mem: storing 117 in location 11</span>
<span class="traceContains">+mem: storing 110 in location 12</span>
<span class="traceContains">+mem: storing 107 in location 13</span>
<span class="traceContains">+mem: storing 110 in location 14</span>
<span class="Delimiter">:(before "End Globals")</span>
string Most_recent_results<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Setup")</span>
Most_recent_results = <span class="Constant">""</span><span class="Delimiter">;</span>
<span class="Delimiter">:(before "End of Instruction")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Running_interactive<span class="Delimiter">)</span> <span class="Delimiter">{</span>
record_products<span class="Delimiter">(</span>current_instruction<span class="Delimiter">(),</span> products<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> record_products<span class="Delimiter">(</span><span class="Normal">const</span> instruction& instruction<span class="Delimiter">,</span> <span class="Normal">const</span> vector<vector<<span class="Normal">double</span>> >& products<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ostringstream out<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>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// string</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>i < SIZE<span class="Delimiter">(</span>instruction<span class="Delimiter">.</span>products<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_string<span class="Delimiter">(</span>instruction<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>scalar<span class="Delimiter">(</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)));</span>
out << read_mu_string<span class="Delimiter">(</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Record Product Special-cases</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> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < SIZE<span class="Delimiter">(</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> ++j<span class="Delimiter">)</span>
out << products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)</span> << <span class="Constant">' '</span><span class="Delimiter">;</span>
out << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
Most_recent_results = out<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "Complete Call Fallthrough")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>operation == RUN_INTERACTIVE && !current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> <= <span class="Constant">3</span><span class="Delimiter">);</span>
<span class="Comment">// Send the results of the most recently executed instruction, regardless of</span>
<span class="Comment">// call depth, to be converted to string and potentially printed to string.</span>
vector<<span class="Normal">double</span>> result<span class="Delimiter">;</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>new_mu_string<span class="Delimiter">(</span>Most_recent_results<span class="Delimiter">));</span>
write_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> result<span class="Delimiter">);</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> >= <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<<span class="Normal">double</span>> warnings<span class="Delimiter">;</span>
warnings<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>warnings_from_trace<span class="Delimiter">());</span>
write_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> warnings<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">)</span> >= <span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<<span class="Normal">double</span>> screen<span class="Delimiter">;</span>
screen<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Memory[SCREEN]<span class="Delimiter">);</span>
write_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">),</span> screen<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Comment">//: clean up reply after we've popped it off the call-stack</span>
<span class="Comment">//: however, we need what was on the stack to decide whether to clean up</span>
<span class="Delimiter">:(after "Starting Reply")</span>
<span class="Normal">bool</span> must_clean_up_interactive = <span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">()</span> == <span class="Constant">"interactive"</span><span class="Delimiter">);</span>
<span class="Delimiter">:(after "Falling Through End Of Recipe")</span>
<span class="Normal">bool</span> must_clean_up_interactive = <span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">()</span> == <span class="Constant">"interactive"</span><span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Reply")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>must_clean_up_interactive<span class="Delimiter">)</span> clean_up_interactive<span class="Delimiter">();</span>
<span class="Delimiter">:(before "Complete Call Fallthrough")</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>must_clean_up_interactive<span class="Delimiter">)</span> clean_up_interactive<span class="Delimiter">();</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> clean_up_interactive<span class="Delimiter">()</span> <span class="Delimiter">{</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span> <span class="Comment">// flush trace</span>
Hide_warnings = <span class="Constant">false</span><span class="Delimiter">;</span>
Running_interactive = <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Comment">// hack: assume collect_layer isn't set anywhere else</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>collect_layer == <span class="Constant">"warn"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">delete</span> Trace_stream<span class="Delimiter">;</span>
Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="CommentedCode">//? cerr << "restore screen: " << Memory[SCREEN] << " to " << Old_screen << '\n'; //? 1</span>
Memory[SCREEN] = Old_screen<span class="Delimiter">;</span>
Old_screen = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
string strip_comments<span class="Delimiter">(</span>string in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ostringstream result<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>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> != <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
result << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
<span class="Normal">while</span> <span class="Delimiter">(</span>i < SIZE<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span>
++i<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>i < SIZE<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> ++i<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
string read_mu_string<span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> address<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> size = Memory[address]<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>size == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span>
ostringstream tmp<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> curr = address+<span class="Constant">1</span><span class="Delimiter">;</span> curr <= address+size<span class="Delimiter">;</span> ++curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// todo: unicode</span>
tmp << <span class="Delimiter">(</span><span class="Normal">char</span><span class="Delimiter">)(</span><span class="Normal">int</span><span class="Delimiter">)</span>Memory[curr]<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> tmp<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> stringified_value_of_location<span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> address<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// convert to string</span>
ostringstream out<span class="Delimiter">;</span>
out << Memory[address]<span class="Delimiter">;</span>
<span class="Identifier">return</span> new_mu_string<span class="Delimiter">(</span>out<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> is_string<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> SIZE<span class="Delimiter">(</span>x<span class="Delimiter">.</span>types<span class="Delimiter">)</span> == <span class="Constant">3</span>
&& x<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == Type_ordinal[<span class="Constant">"address"</span>]
&& x<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)</span> == Type_ordinal[<span class="Constant">"array"</span>]
&& x<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">)</span> == Type_ordinal[<span class="Constant">"character"</span>]<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> warnings_from_trace<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="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"warn"</span><span class="Delimiter">)</span> <= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
ostringstream out<span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-></span>label != <span class="Constant">"warn"</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
out << p<span class="Delimiter">-></span>contents<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>*--p<span class="Delimiter">-></span>contents<span class="Delimiter">.</span>end<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> out << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
assert<span class="Delimiter">(</span>!out<span class="Delimiter">.</span>str<span class="Delimiter">().</span>empty<span class="Delimiter">());</span>
<span class="Identifier">return</span> new_mu_string<span class="Delimiter">(</span>out<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="Comment">//: simpler version of run-interactive: doesn't do any running, just loads</span>
<span class="Comment">//: recipes and reports warnings.</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
RELOAD<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_ordinal[<span class="Constant">"reload"</span>] = RELOAD<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> RELOAD: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">": 'reload' requires exactly one ingredient, but got "</span> << current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <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="Delimiter">{</span>
raise << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">": first ingredient of 'reload' should be a literal string, but got "</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 class="Identifier">break</span><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_file = <span class="Constant">""</span><span class="Delimiter">;</span> <span class="Comment">// if there wasn't already a stream we don't want to save it</span>
Trace_stream = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span>
Trace_stream<span class="Delimiter">-></span>collect_layer = <span class="Constant">"warn"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
Hide_warnings = <span class="Constant">true</span><span class="Delimiter">;</span>
Disable_redefine_warnings = <span class="Constant">true</span><span class="Delimiter">;</span>
load<span class="Delimiter">(</span>read_mu_string<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>
transform_all<span class="Delimiter">();</span>
Trace_stream<span class="Delimiter">-></span>newline<span class="Delimiter">();</span> <span class="Comment">// flush trace</span>
Disable_redefine_warnings = <span class="Constant">false</span><span class="Delimiter">;</span>
Hide_warnings = <span class="Constant">false</span><span class="Delimiter">;</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</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>warnings_from_trace<span class="Delimiter">());</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>collect_layer == <span class="Constant">"warn"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">delete</span> Trace_stream<span class="Delimiter">;</span>
Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
</pre>
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