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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/resolve_names.cpp
+35 -1
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@@ -24,6 +24,15 @@ static void AddExposedNames(const Declaration& declaration,
static void AddExposedNames(const Declaration& declaration,
StaticScope& enclosing_scope) {
switch (declaration.kind()) {
case DeclarationKind::InterfaceDeclaration: {
auto& iface_decl = cast<InterfaceDeclaration>(declaration);
enclosing_scope.Add(iface_decl.name(), &iface_decl);
break;
}
case DeclarationKind::ImplDeclaration: {
// Nothing to do here
break;
}
case DeclarationKind::FunctionDeclaration: {
auto& func = cast<FunctionDeclaration>(declaration);
enclosing_scope.Add(func.name(), &func);
@@ -115,7 +124,7 @@ static void ResolveNames(Expression& expression,
break;
case ExpressionKind::IdentifierExpression: {
auto& identifier = cast<IdentifierExpression>(expression);
identifier.set_named_entity(
identifier.set_value_node(
enclosing_scope.Resolve(identifier.name(), identifier.source_loc()));
break;
}
@@ -244,6 +253,31 @@ static void ResolveNames(Statement& statement, StaticScope& enclosing_scope) {
static void ResolveNames(Declaration& declaration,
StaticScope& enclosing_scope) {
switch (declaration.kind()) {
case DeclarationKind::InterfaceDeclaration: {
auto& iface = cast<InterfaceDeclaration>(declaration);
StaticScope iface_scope;
iface_scope.AddParent(&enclosing_scope);
iface_scope.Add("Self", iface.self());
for (Nonnull<Declaration*> member : iface.members()) {
AddExposedNames(*member, iface_scope);
}
for (Nonnull<Declaration*> member : iface.members()) {
ResolveNames(*member, iface_scope);
}
break;
}
case DeclarationKind::ImplDeclaration: {
auto& impl = cast<ImplDeclaration>(declaration);
ResolveNames(impl.interface(), enclosing_scope);
ResolveNames(*impl.impl_type(), enclosing_scope);
for (Nonnull<Declaration*> member : impl.members()) {
AddExposedNames(*member, enclosing_scope);
}
for (Nonnull<Declaration*> member : impl.members()) {
ResolveNames(*member, enclosing_scope);
}
break;
}
case DeclarationKind::FunctionDeclaration: {
auto& function = cast<FunctionDeclaration>(declaration);
StaticScope function_scope;