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Diffstat (limited to 'cpp/030container.cc')
-rw-r--r-- | cpp/030container.cc | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/cpp/030container.cc b/cpp/030container.cc deleted file mode 100644 index 9de3aad7..00000000 --- a/cpp/030container.cc +++ /dev/null @@ -1,169 +0,0 @@ -//: Containers contain a fixed number of elements of different types. - -:(before "End Mu Types Initialization") -//: We'll use this container as a running example, with two integer elements. -type_number point = Type_number["point"] = Next_type_number++; -Type[point].size = 2; -Type[point].kind = container; -Type[point].name = "point"; -vector<type_number> i; -i.push_back(integer); -Type[point].elements.push_back(i); -Type[point].elements.push_back(i); - -:(scenario copy_multiple_locations) -# Containers can be copied around with a single instruction just like integers, -# no matter how large they are. -recipe main [ - 1:integer <- copy 34:literal - 2:integer <- copy 35:literal - 3:point <- copy 1:point -] -+run: ingredient 0 is 1 -+mem: location 1 is 34 -+mem: location 2 is 35 -+mem: storing 34 in location 3 -+mem: storing 35 in location 4 - -:(before "End Mu Types Initialization") -// A more complex container, containing another container as one of its -// elements. -type_number point_integer = Type_number["point-integer"] = Next_type_number++; -Type[point_integer].size = 2; -Type[point_integer].kind = container; -Type[point_integer].name = "point-integer"; -vector<type_number> p2; -p2.push_back(point); -Type[point_integer].elements.push_back(p2); -vector<type_number> i2; -i2.push_back(integer); -Type[point_integer].elements.push_back(i2); - -:(scenario copy_handles_nested_container_elements) -recipe main [ - 12:integer <- copy 34:literal - 13:integer <- copy 35:literal - 14:integer <- copy 36:literal - 15:point-integer <- copy 12:point-integer -] -+mem: storing 36 in location 17 - -:(before "End size_of(types) Cases") -type_info t = Type[types[0]]; -if (t.kind == container) { - // size of a container is the sum of the sizes of its elements - size_t result = 0; - for (index_t i = 0; i < t.elements.size(); ++i) { - result += size_of(t.elements[i]); - } - return result; -} - -//:: To access elements of a container, use 'get' -:(scenario get) -recipe main [ - 12:integer <- copy 34:literal - 13:integer <- copy 35:literal - 15:integer <- get 12:point, 1:offset -] -+run: instruction main/2 -+run: ingredient 0 is 12 -+run: ingredient 1 is 1 -+run: address to copy is 13 -+run: its type is 1 -+mem: location 13 is 35 -+run: product 0 is 35 -+mem: storing 35 in location 15 - -:(before "End Primitive Recipe Declarations") -GET, -:(before "End Primitive Recipe Numbers") -Recipe_number["get"] = GET; -:(before "End Primitive Recipe Implementations") -case GET: { - trace("run") << "ingredient 0 is " << current_instruction().ingredients[0].name; - reagent base = current_instruction().ingredients[0]; - index_t base_address = base.value; - type_number base_type = base.types[0]; - assert(Type[base_type].kind == container); - trace("run") << "ingredient 1 is " << current_instruction().ingredients[1].name; - assert(isa_literal(current_instruction().ingredients[1])); - index_t offset = current_instruction().ingredients[1].value; - index_t src = base_address; - for (index_t i = 0; i < offset; ++i) { - src += size_of(Type[base_type].elements[i]); - } - trace("run") << "address to copy is " << src; - assert(Type[base_type].kind == container); - assert(Type[base_type].elements.size() > offset); - type_number src_type = Type[base_type].elements[offset][0]; - trace("run") << "its type is " << src_type; - reagent tmp; - tmp.set_value(src); - tmp.types.push_back(src_type); - vector<long long int> result(read_memory(tmp)); - trace("run") << "product 0 is " << result[0]; - write_memory(current_instruction().products[0], result); - break; -} - -//: 'get' requires a literal in ingredient 1. We'll use a synonym called -//: 'offset'. -:(before "End Mu Types Initialization") -Type_number["offset"] = 0; - -:(scenario get_handles_nested_container_elements) -recipe main [ - 12:integer <- copy 34:literal - 13:integer <- copy 35:literal - 14:integer <- copy 36:literal - 15:integer <- get 12:point-integer, 1:offset -] -+run: instruction main/2 -+run: ingredient 0 is 12 -+run: ingredient 1 is 1 -+run: address to copy is 14 -+run: its type is 1 -+mem: location 14 is 36 -+run: product 0 is 36 -+mem: storing 36 in location 15 - -//:: To write to elements of containers, you need their address. - -:(scenario get_address) -recipe main [ - 12:integer <- copy 34:literal - 13:integer <- copy 35:literal - 15:address:integer <- get-address 12:point, 1:offset -] -+run: instruction main/2 -+run: ingredient 0 is 12 -+run: ingredient 1 is 1 -+run: address to copy is 13 -+mem: storing 13 in location 15 - -:(before "End Primitive Recipe Declarations") -GET_ADDRESS, -:(before "End Primitive Recipe Numbers") -Recipe_number["get-address"] = GET_ADDRESS; -:(before "End Primitive Recipe Implementations") -case GET_ADDRESS: { - trace("run") << "ingredient 0 is " << current_instruction().ingredients[0].name; - reagent base = current_instruction().ingredients[0]; - index_t base_address = base.value; - type_number base_type = base.types[0]; - assert(Type[base_type].kind == container); - trace("run") << "ingredient 1 is " << current_instruction().ingredients[1].name; - assert(isa_literal(current_instruction().ingredients[1])); - index_t offset = current_instruction().ingredients[1].value; - index_t src = base_address; - for (index_t i = 0; i < offset; ++i) { - src += size_of(Type[base_type].elements[i]); - } - trace("run") << "address to copy is " << src; - vector<long long int> result; - result.push_back(src); - trace("run") << "product 0 is " << result[0]; - write_memory(current_instruction().products[0], result); - break; -} |