mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-11-15 23:48:09 +00:00
Richard SmithandJon Ross-Perkins
891c7d8368
Remove `ReusingLoc` and add enforcement that even for imported locations, the kind of the parse node for an instruction matches the kind specified in the instruction definition. Change the node kind for a few instructions to `NodeId`: - A couple of instructions had a typed node but could be created implicitly with any node as part of a builtin implicit conversion. This happened for `AddrOf`, `ArrayIndex`, and `Deref`. - A bunch of instructions had `InvalidNodeId` as their associated parse node kind but were actually always created with a location. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
#include "toolchain/check/context.h"
|
|
#include "toolchain/check/handle.h"
|
|
#include "toolchain/check/modifiers.h"
|
|
#include "toolchain/check/name_component.h"
|
|
#include "toolchain/parse/node_ids.h"
|
|
#include "toolchain/sem_ir/ids.h"
|
|
#include "toolchain/sem_ir/typed_insts.h"
|
|
|
|
namespace Carbon::Check {
|
|
|
|
auto HandleParseNode(Context& context, Parse::AliasIntroducerId /*node_id*/)
|
|
-> bool {
|
|
context.decl_introducer_state_stack().Push<Lex::TokenKind::Alias>();
|
|
context.decl_name_stack().PushScopeAndStartName();
|
|
return true;
|
|
}
|
|
|
|
auto HandleParseNode(Context& /*context*/,
|
|
Parse::AliasInitializerId /*node_id*/) -> bool {
|
|
return true;
|
|
}
|
|
|
|
auto HandleParseNode(Context& context, Parse::AliasId /*node_id*/) -> bool {
|
|
auto [expr_node, expr_id] = context.node_stack().PopExprWithNodeId();
|
|
|
|
auto name_context = context.decl_name_stack().FinishName(
|
|
PopNameComponentWithoutParams(context, Lex::TokenKind::Alias));
|
|
|
|
auto introducer =
|
|
context.decl_introducer_state_stack().Pop<Lex::TokenKind::Alias>();
|
|
LimitModifiersOnDecl(context, introducer, KeywordModifierSet::Access);
|
|
|
|
auto entity_name_id = context.entity_names().Add(
|
|
{.name_id = name_context.name_id_for_new_inst(),
|
|
.parent_scope_id = name_context.parent_scope_id,
|
|
.bind_index = SemIR::CompileTimeBindIndex::Invalid});
|
|
|
|
auto alias_type_id = SemIR::TypeId::Invalid;
|
|
auto alias_value_id = SemIR::InstId::Invalid;
|
|
if (expr_id.is_builtin()) {
|
|
// Type (`bool`) and value (`false`) literals provided by the builtin
|
|
// structure should be turned into name references.
|
|
// TODO: Look into handling `false`, this doesn't do it right now because it
|
|
// sees a value instruction instead of a builtin.
|
|
alias_type_id = context.insts().Get(expr_id).type_id();
|
|
alias_value_id = expr_id;
|
|
} else if (auto inst = context.insts().TryGetAs<SemIR::NameRef>(expr_id)) {
|
|
// Pass through name references, albeit changing the name in use.
|
|
alias_type_id = inst->type_id;
|
|
alias_value_id = inst->value_id;
|
|
} else {
|
|
CARBON_DIAGNOSTIC(AliasRequiresNameRef, Error,
|
|
"Alias initializer must be a name reference.");
|
|
context.emitter().Emit(expr_node, AliasRequiresNameRef);
|
|
alias_type_id = SemIR::TypeId::Error;
|
|
alias_value_id = SemIR::InstId::BuiltinError;
|
|
}
|
|
auto alias_id = context.AddInst<SemIR::BindAlias>(
|
|
name_context.loc_id, {.type_id = alias_type_id,
|
|
.entity_name_id = entity_name_id,
|
|
.value_id = alias_value_id});
|
|
|
|
// Add the name of the binding to the current scope.
|
|
context.decl_name_stack().PopScope();
|
|
context.decl_name_stack().AddNameOrDiagnoseDuplicate(
|
|
name_context, alias_id, introducer.modifier_set.GetAccessKind());
|
|
return true;
|
|
}
|
|
|
|
} // namespace Carbon::Check
|