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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
2d3842fc06
Support for types (particularly classes) is left as a TODO. There's also an issue I'm observing with a "define in impl" test, but this is probably an issue with resolving the prior declaration which is imported indirectly. The PR was already feeling big, so I'm choosing to cut here. Note, this does not implement the rule "The owning library's API file must import the `extern` declaration, and must also contain a declaration."
88 lines
2.8 KiB
C++
88 lines
2.8 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*/, Parse::PackageNameId /*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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} // namespace Carbon::Check
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