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
172
173
174
175
176
177
|
//: Calls can also generate products, using 'reply'.
:(scenario reply)
recipe main [
1:number, 2:number <- f 34:literal
]
recipe f [
12:number <- next-ingredient
13:number <- add 1:literal, 12:number
reply 12:number, 13:number
]
+mem: storing 34 in location 1
+mem: storing 35 in location 2
:(before "End Primitive Recipe Declarations")
REPLY,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["reply"] = REPLY;
:(before "End Primitive Recipe Implementations")
case REPLY: {
// Starting Reply
const instruction& reply_inst = current_instruction(); // save pointer into recipe before pop
const string& callee = current_recipe_name();
--Callstack_depth;
//? if (tb_is_active()) { //? 1
//? tb_clear(); //? 1
//? cerr << Recipe[Current_routine->calls.front().running_recipe].name << ' ' << current_step_index() << '\n'; //? 1
//? } //? 1
Current_routine->calls.pop_front();
// just in case 'main' returns a value, drop it for now
if (Current_routine->calls.empty()) goto stop_running_current_routine;
const instruction& caller_instruction = current_instruction();
// make reply results available to caller
copy(ingredients.begin(), ingredients.end(), inserter(products, products.begin()));
// check that any reply ingredients with /same-as-ingredient connect up
// the corresponding ingredient and product in the caller.
if (SIZE(caller_instruction.products) > SIZE(ingredients))
raise << "too few values replied from " << callee << '\n';
for (long long int i = 0; i < SIZE(caller_instruction.products); ++i) {
//? cerr << Recipe[Current_routine->calls.front().running_recipe].name << '\n'; //? 1
trace(Primitive_recipe_depth, "run") << "result " << i << " is " << to_string(ingredients.at(i));
if (has_property(reply_inst.ingredients.at(i), "same-as-ingredient")) {
vector<string> tmp = property(reply_inst.ingredients.at(i), "same-as-ingredient");
assert(SIZE(tmp) == 1);
long long int ingredient_index = to_integer(tmp.at(0));
if (ingredient_index >= SIZE(caller_instruction.ingredients))
raise << current_recipe_name() << ": 'same-as-ingredient' metadata overflows ingredients in: " << caller_instruction.to_string() << '\n';
//? cerr << caller_instruction.products.size() << ' ' << i << ' ' << caller_instruction.ingredients.size() << ' ' << ingredient_index << '\n'; //? 1
//? cerr << caller_instruction.to_string() << '\n'; //? 1
if (!is_dummy(caller_instruction.products.at(i)) && caller_instruction.products.at(i).value != caller_instruction.ingredients.at(ingredient_index).value)
raise << current_recipe_name() << ": 'same-as-ingredient' result " << caller_instruction.products.at(i).value << " from call to " << callee << " must be location " << caller_instruction.ingredients.at(ingredient_index).value << '\n';
}
}
break; // continue to process rest of *caller* instruction
}
//: Products can include containers and exclusive containers, addresses and arrays.
:(scenario reply_container)
recipe main [
3:point <- f 2:literal
]
recipe f [
12:number <- next-ingredient
13:number <- copy 35:literal
reply 12:point/raw # unsafe
]
+run: result 0 is [2, 35]
+mem: storing 2 in location 3
+mem: storing 35 in location 4
//: In mu we'd like to assume that any instruction doesn't modify its
//: ingredients unless they're also products. The /same-as-ingredient inside
//: the recipe's 'reply' will help catch accidental misuse of such
//: 'ingredient-results' (sometimes called in-out parameters in other languages).
:(scenario reply_same_as_ingredient)
% Hide_warnings = true;
recipe main [
1:number <- copy 0:literal
2:number <- test1 1:number # call with different ingredient and product
]
recipe test1 [
10:address:number <- next-ingredient
reply 10:address:number/same-as-ingredient:0
]
+warn: main: 'same-as-ingredient' result 2 from call to test1 must be location 1
:(scenario reply_same_as_ingredient_dummy)
% Hide_warnings = true;
recipe main [
1:number <- copy 0:literal
_ <- test1 1:number # call with different ingredient and product
]
recipe test1 [
10:address:number <- next-ingredient
reply 10:address:number/same-as-ingredient:0
]
$warn: 0
:(code)
string to_string(const vector<double>& in) {
if (in.empty()) return "[]";
ostringstream out;
if (SIZE(in) == 1) {
out << in.at(0);
return out.str();
}
out << "[";
for (long long int i = 0; i < SIZE(in); ++i) {
if (i > 0) out << ", ";
out << in.at(i);
}
out << "]";
return out.str();
}
//: Conditional reply.
:(scenario reply_if)
recipe main [
1:number <- test1
]
recipe test1 [
reply-if 0:literal, 34:literal
reply 35:literal
]
+mem: storing 35 in location 1
:(scenario reply_if2)
recipe main [
1:number <- test1
]
recipe test1 [
reply-if 1:literal, 34:literal
reply 35:literal
]
+mem: storing 34 in location 1
:(before "End Rewrite Instruction(curr)")
// rewrite `reply-if a, b, c, ...` to
// ```
// jump-unless a, 1:offset
// reply b, c, ...
// ```
if (curr.name == "reply-if") {
assert(curr.products.empty());
curr.operation = Recipe_ordinal["jump-unless"];
curr.name = "jump-unless";
vector<reagent> results;
copy(++curr.ingredients.begin(), curr.ingredients.end(), inserter(results, results.end()));
curr.ingredients.resize(1);
curr.ingredients.push_back(reagent("1:offset"));
result.steps.push_back(curr);
curr.clear();
curr.operation = Recipe_ordinal["reply"];
curr.name = "reply";
curr.ingredients.swap(results);
}
// rewrite `reply-unless a, b, c, ...` to
// ```
// jump-if a, 1:offset
// reply b, c, ...
// ```
if (curr.name == "reply-unless") {
assert(curr.products.empty());
curr.operation = Recipe_ordinal["jump-if"];
curr.name = "jump-if";
vector<reagent> results;
copy(++curr.ingredients.begin(), curr.ingredients.end(), inserter(results, results.end()));
curr.ingredients.resize(1);
curr.ingredients.push_back(reagent("1:offset"));
result.steps.push_back(curr);
curr.clear();
curr.operation = Recipe_ordinal["reply"];
curr.name = "reply";
curr.ingredients.swap(results);
}
|