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// Support for records.
:(before "End Mu Types")
// We'll use this array as a running example:
int integer_array = Type_number["integer-array"] = Next_type_number++;
Type[integer_array].is_array = true;
Type[integer_array].element.push_back(integer);
:(scenario copy_array)
# Arrays can be copied around with a single instruction just like integers,
# no matter how large they are.
recipe main [
1:integer <- copy 3:literal
2:integer <- copy 14:literal
3:integer <- copy 15:literal
4:integer <- copy 16:literal
5:integer-array <- copy 1:integer-array
]
+run: instruction 4
+run: ingredient 0 is 1
+mem: location 1 is 3
+mem: location 2 is 14
+mem: location 3 is 15
+mem: location 4 is 16
+mem: storing in location 5
+mem: storing in location 6
+mem: storing in location 7
+mem: storing in location 8
:(replace{} "size_t size_of(reagent r)")
size_t size_of(reagent r) {
type_info t = Type[r.types[0]];
if (t.is_record) {
int result = 0;
for (size_t i = 0; i < t.size; ++i) {
ostringstream out;
out << result;
reagent x(out.str());
copy(t.elements[i].begin(), t.elements[i].end(), inserter(x.types, x.types.begin()));
result += size_of(x);
}
return result;
}
if (t.is_array) {
int base = to_int(r.name);
if (Memory[base] == 0) return 0;
ostringstream out;
out << base+1;
reagent x(out.str());
x.types.push_back(t.element[0]);
return 1 + Memory[base]*size_of(x);
}
// scalar
return t.size;
}
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