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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-PerkinsandDana Jansens
8166f9a7cf
This turns `Cpp` into a keyword, and makes it map to `NameId::Cpp` and `PackageNameId::Cpp`. Per discussion with zygoloid, the keyword versus identifier question is deliberately kept open by #4846. This PR switches to a keyword because mapping to a specific `PackageNameId` works best with a special `NameId` not backed by an `IdentifierId`. We could in theory make it work using `IdentifierId` or a runtime-tracked `PackageNameId` for `Cpp` (e.g. stored on `SemIR::File`), but this approach is consistent with `Core` and so seemed like a good starting point. --------- Co-authored-by: Dana Jansens <danakj@orodu.net>
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/check/context.h"
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#include "toolchain/check/decl_introducer_state.h"
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#include "toolchain/check/handle.h"
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#include "toolchain/check/modifiers.h"
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namespace Carbon::Check {
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// `import` and `package` are structured by parsing. As a consequence, no
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// checking logic is needed here.
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auto HandleParseNode(Context& context, Parse::ImportIntroducerId /*node_id*/)
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-> bool {
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context.decl_introducer_state_stack().Push<Lex::TokenKind::Import>();
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return true;
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}
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auto HandleParseNode(Context& context, Parse::ImportDeclId /*node_id*/)
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-> bool {
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context.node_stack().PopIf<SemIR::LibraryNameId>();
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auto introducer =
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context.decl_introducer_state_stack().Pop<Lex::TokenKind::Import>();
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LimitModifiersOnDecl(context, introducer, KeywordModifierSet::Export);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::LibraryIntroducerId /*node_id*/)
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-> bool {
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context.decl_introducer_state_stack().Push<Lex::TokenKind::Library>();
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return true;
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}
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auto HandleParseNode(Context& context, Parse::LibraryDeclId /*node_id*/)
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-> bool {
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context.node_stack().PopIf<SemIR::LibraryNameId>();
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auto introducer =
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context.decl_introducer_state_stack().Pop<Lex::TokenKind::Library>();
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LimitModifiersOnDecl(context, introducer, KeywordModifierSet::Impl);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::PackageIntroducerId /*node_id*/)
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-> bool {
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context.decl_introducer_state_stack().Push<Lex::TokenKind::Package>();
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return true;
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}
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auto HandleParseNode(Context& context, Parse::PackageDeclId /*node_id*/)
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-> bool {
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context.node_stack().PopIf<SemIR::LibraryNameId>();
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auto introducer =
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context.decl_introducer_state_stack().Pop<Lex::TokenKind::Package>();
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LimitModifiersOnDecl(context, introducer, KeywordModifierSet::Impl);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::LibrarySpecifierId /*node_id*/)
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-> bool {
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CARBON_CHECK(context.node_stack().PeekIs<SemIR::LibraryNameId>());
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return true;
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}
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auto HandleParseNode(Context& /*context*/,
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Parse::IdentifierPackageNameId /*node_id*/) -> bool {
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return true;
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}
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auto HandleParseNode(Context& /*context*/, Parse::CorePackageNameId /*node_id*/)
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-> bool {
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return true;
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}
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auto HandleParseNode(Context& /*context*/, Parse::CppPackageNameId /*node_id*/)
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-> bool {
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return true;
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}
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auto HandleParseNode(Context& context, Parse::LibraryNameId node_id) -> bool {
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// This is discarded in this file's uses, but is used by modifiers for `extern
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// library`.
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auto literal_id = context.tokens().GetStringLiteralValue(
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context.parse_tree().node_token(node_id));
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context.node_stack().Push(
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node_id, SemIR::LibraryNameId::ForStringLiteralValueId(literal_id));
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return true;
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}
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auto HandleParseNode(Context& context, Parse::DefaultLibraryId node_id)
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-> bool {
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context.node_stack().Push(node_id, SemIR::LibraryNameId::Default);
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return true;
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}
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auto HandleParseNode(Context& /*context*/,
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Parse::InlineImportSpecifierId /*node_id*/) -> bool {
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return true;
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}
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auto HandleParseNode(Context& /*context*/,
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Parse::InlineImportBodyId /*node_id*/) -> bool {
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return true;
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}
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} // namespace Carbon::Check
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