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https://github.com/carbon-language/carbon-lang.git
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Geoff Romer
8f258eaaa6
This change only supports `friend` with an identifier operand, because there are a lot of open questions about the desired syntax beyond that.
35 lines
1.3 KiB
C++
35 lines
1.3 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/parse/context.h"
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#include "toolchain/parse/handle.h"
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namespace Carbon::Parse {
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// Handles processing of a complete `friend X` declaration.
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auto HandleFriendDecl(Context& context) -> void {
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auto state = context.PopState();
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if (state.has_error) {
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context.RecoverFromDeclError(state, NodeKind::FriendDecl,
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/*skip_past_likely_end=*/true);
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return;
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}
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if (!context.ConsumeAndAddLeafNodeIf(Lex::TokenKind::Identifier,
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NodeKind::IdentifierNameExpr)) {
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state.has_error = true;
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CARBON_DIAGNOSTIC(ExpectedIdentifierForFriend, Error,
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"expected identifier for friend declaration");
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context.emitter().Emit(*context.position(), ExpectedIdentifierForFriend);
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context.RecoverFromDeclError(state, NodeKind::FriendDecl,
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/*skip_past_likely_end=*/true);
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return;
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}
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context.AddNodeExpectingDeclSemi(state, NodeKind::FriendDecl,
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Lex::TokenKind::Friend,
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/*is_def_allowed=*/false);
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}
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} // namespace Carbon::Parse
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