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interfaces, impls, and constrained generics (basics) (#1073)

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* interfaces, impls, and constrained generics (basics)

* separate type checking into declare vs. type check, removing redundancy

* external impls

* added impl scopes to handle generics calling generics

* cleanup

* more cleanup

* Update executable_semantics/testdata/interface/external_impl_point_vector.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* Update executable_semantics/testdata/interface/generic_call_generic.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* Update executable_semantics/testdata/interface/tuple_vector_add_scale.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* Update executable_semantics/testdata/interface/vector_point_add_scale.carbon

Co-authored-by: josh11b <josh11b@users.noreply.github.com>

* change ImplementationDeclaration to ImplDeclaration

* remove impl_type_value

* split NamedEntity into two

* changed GetName to be a free function

* adding comments

* more edits to respond to review

* introduce ImplBinding, remove punning on GenericBinding

* new test case and some minor edits

* refactor GetMember and GetField to move impl logic to interpreter

* remove commennt

* change EntityView to ImplBinding in FieldAccess...

* move ImplBinding

* review response

* added example to impl_scope.h

* minor edits

* Update executable_semantics/interpreter/field_path.h

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/interpreter/value.cpp

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/interpreter/interpreter.cpp

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/ast/expression.h

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/ast/expression.h

Co-authored-by: Geoff Romer <gromer@google.com>

* Update executable_semantics/ast/generic_binding.h

Co-authored-by: Geoff Romer <gromer@google.com>

* more edits from review

* review response

* Update executable_semantics/ast/static_scope.h

Co-authored-by: Geoff Romer <gromer@google.com>

* remove ImplType, renamed node_view to value_node

Co-authored-by: josh11b <josh11b@users.noreply.github.com>
Co-authored-by: Geoff Romer <gromer@google.com>
This commit is contained in:
Jeremy G. Siek
2022-03-02 15:58:45 -05:00
committed by GitHub
co-authored by josh11b Geoff Romer
parent 8f6e42d866
commit 7cce1bd124
43 changed files with 1722 additions and 441 deletions
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executable_semantics/interpreter/action.cpp
+9 -9
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@@ -44,20 +44,20 @@ RuntimeScope::~RuntimeScope() {
void RuntimeScope::Print(llvm::raw_ostream& out) const {
out << "{";
llvm::ListSeparator sep;
for (const auto& [named_entity, value] : locals_) {
out << sep << named_entity.name() << ": " << *value;
for (const auto& [value_node, value] : locals_) {
out << sep << value_node.base() << ": " << *value;
}
out << "}";
}
void RuntimeScope::Initialize(NamedEntityView named_entity,
void RuntimeScope::Initialize(ValueNodeView value_node,
Nonnull<const Value*> value) {
CHECK(!named_entity.constant_value().has_value());
CHECK(!value_node.constant_value().has_value());
CHECK(value->kind() != Value::Kind::LValue);
allocations_.push_back(heap_->AllocateValue(value));
auto [it, success] = locals_.insert(
{named_entity, heap_->arena().New<LValue>(Address(allocations_.back()))});
CHECK(success) << "Duplicate definition of " << named_entity.name();
{value_node, heap_->arena().New<LValue>(Address(allocations_.back()))});
CHECK(success) << "Duplicate definition of " << value_node.base();
}
void RuntimeScope::Merge(RuntimeScope other) {
@@ -65,15 +65,15 @@ void RuntimeScope::Merge(RuntimeScope other) {
locals_.merge(other.locals_);
CHECK(other.locals_.empty())
<< "Duplicate definition of " << other.locals_.size()
<< " names, including " << other.locals_.begin()->first.name();
<< " names, including " << other.locals_.begin()->first.base();
allocations_.insert(allocations_.end(), other.allocations_.begin(),
other.allocations_.end());
other.allocations_.clear();
}
auto RuntimeScope::Get(NamedEntityView named_entity) const
auto RuntimeScope::Get(ValueNodeView value_node) const
-> std::optional<Nonnull<const LValue*>> {
auto it = locals_.find(named_entity);
auto it = locals_.find(value_node);
if (it != locals_.end()) {
return it->second;
} else {