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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/heap.cpp
+3 -2
View File
@@ -20,7 +20,7 @@ auto Heap::AllocateValue(Nonnull<const Value*> v) -> AllocationId {
return a;
}
auto Heap::Read(const Address& a, SourceLocation source_loc)
auto Heap::Read(const Address& a, SourceLocation source_loc) const
-> Nonnull<const Value*> {
this->CheckAlive(a.allocation_, source_loc);
return values_[a.allocation_.index_]->GetField(arena_, a.field_path_,
@@ -34,7 +34,8 @@ void Heap::Write(const Address& a, Nonnull<const Value*> v,
arena_, a.field_path_, v, source_loc);
}
void Heap::CheckAlive(AllocationId allocation, SourceLocation source_loc) {
void Heap::CheckAlive(AllocationId allocation,
SourceLocation source_loc) const {
if (!alive_[allocation.index_]) {
FATAL_RUNTIME_ERROR(source_loc)
<< "undefined behavior: access to dead value "