1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
<!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 - 062rewrite_stash.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; }
.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">//: when encountering other types, try to convert them to strings using</span>
<span class="Comment">//: 'to-text'</span>
<span class="Delimiter">:(scenarios transform)</span>
<span class="Delimiter">:(scenario rewrite_stashes_to_text)</span>
recipe main [
local-scope
<span class="Normal">n</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>
stash n
]
<span class="traceContains">+transform: {stash_2_0: ("address" "array" "character")} <- to-text-line {n: "number"}</span>
<span class="traceContains">+transform: stash {stash_2_0: ("address" "array" "character")}</span>
<span class="Comment">//: special case: rewrite attempts to stash contents of most arrays to avoid</span>
<span class="Comment">//: passing addresses around</span>
<span class="Delimiter">:(scenario rewrite_stashes_of_arrays)</span>
recipe main [
local-scope
<span class="Normal">n</span>:address:array:number<span class="Special"> <- </span><span class="Normal">new</span> number:type<span class="Delimiter">,</span> <span class="Constant">3</span>
stash *n
]
<span class="traceContains">+transform: {stash_2_0: ("address" "array" "character")} <- array-to-text-line {n: ("address" "array" "number")}</span>
<span class="traceContains">+transform: stash {stash_2_0: ("address" "array" "character")}</span>
<span class="Delimiter">:(scenario ignore_stashes_of_static_arrays)</span>
recipe main [
local-scope
<span class="Normal">n</span>:array:number:<span class="Constant">3</span><span class="Special"> <- </span>create-array
stash n
]
<span class="traceContains">+transform: stash {n: ("array" "number" "3")}</span>
<span class="Delimiter">:(before "End Instruction Inserting/Deleting Transforms")</span>
Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>rewrite_stashes_to_text<span class="Delimiter">);</span>
<span class="Delimiter">:(code)</span>
<span class="Normal">void</span> rewrite_stashes_to_text<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
recipe& caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
trace<span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"--- rewrite 'stash' instructions in recipe "</span> << caller<span class="Delimiter">.</span>name << end<span class="Delimiter">();</span>
<span class="Comment">// in recipes without named locations, 'stash' is still not extensible</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>contains_numeric_locations<span class="Delimiter">(</span>caller<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
check_or_set_types_by_name<span class="Delimiter">(</span>r<span class="Delimiter">);</span> <span class="Comment">// prerequisite</span>
rewrite_stashes_to_text<span class="Delimiter">(</span>caller<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">void</span> rewrite_stashes_to_text<span class="Delimiter">(</span>recipe& caller<span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<instruction> new_instructions<span class="Delimiter">;</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
instruction& inst = caller<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>inst<span class="Delimiter">.</span>name == <span class="Constant">"stash"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// error; will be handled elsewhere</span>
<span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_mu_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span class="Comment">// don't try to extend static arrays</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_static_array<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
instruction def<span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>is_lookup_of_address_of_array<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
def<span class="Delimiter">.</span>name = <span class="Constant">"array-to-text-line"</span><span class="Delimiter">;</span>
reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> tmp = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span>
drop_one_lookup<span class="Delimiter">(</span>tmp<span class="Delimiter">);</span>
def<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>tmp<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">else</span> <span class="Delimiter">{</span>
def<span class="Delimiter">.</span>name = <span class="Constant">"to-text-line"</span><span class="Delimiter">;</span>
def<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
ostringstream ingredient_name<span class="Delimiter">;</span>
ingredient_name << <span class="Constant">"stash_"</span> << i << <span class="Constant">'_'</span> << j << <span class="Constant">":address:array:character"</span><span class="Delimiter">;</span>
def<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span>ingredient_name<span class="Delimiter">.</span>str<span class="Delimiter">()));</span>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << to_string<span class="Delimiter">(</span>def<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
new_instructions<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>def<span class="Delimiter">);</span>
inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">).</span>clear<span class="Delimiter">();</span> <span class="Comment">// reclaim old memory</span>
inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)</span> = reagent<span class="Delimiter">(</span>ingredient_name<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
trace<span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << end<span class="Delimiter">();</span>
new_instructions<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>inst<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_instructions<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> is_lookup_of_address_of_array<span class="Delimiter">(</span>reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name != <span class="Constant">"address"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>!canonize_type<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span class="Identifier">return</span> x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"array"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Normal">bool</span> is_static_array<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// no canonize_type()</span>
<span class="Identifier">return</span> x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"array"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">//: Make sure that the new system is strictly better than just the 'stash'</span>
<span class="Comment">//: primitive by itself.</span>
<span class="Delimiter">:(scenarios run)</span>
<span class="Delimiter">:(scenario rewrite_stash_continues_to_fall_back_to_default_implementation)</span>
<span class="Comment"># type without a to-text implementation</span>
container foo [
<span class="Normal">x</span>:number
<span class="Normal">y</span>:number
]
recipe main [
local-scope
<span class="Normal">x</span>:foo<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
stash x
]
<span class="traceContains">+app: 34 35</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
TO_TEXT<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"to-text"</span><span class="Delimiter">,</span> TO_TEXT<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span class="Normal">case</span> TO_TEXT: <span class="Delimiter">{</span>
<span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><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">"'to-text' requires a single ingredient, but got '"</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="Comment">// can handle any type</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span class="Normal">case</span> TO_TEXT: <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>new_mu_string<span class="Delimiter">(</span>print_mu<span class="Delimiter">(</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> ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))));</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|