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https://github.com/carbon-language/carbon-lang.git
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Geoff Romer
8c113c1241
Also renames variables of that type to match. A follow-up PR will rename `Parse::StateStackEntry` to `Parse::State`. This is more consistent with the naming of similar enums elsewhere in the toolchain, and with the prevailing practice of using `state` rather than e.g. `entry` as the name of a `StateStackEntry`. See also discussion [here](https://discord.com/channels/655572317891461132/963846118964350976/1326280585592700990)
52 lines
1.7 KiB
C++
52 lines
1.7 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/lex/token_kind.h"
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#include "toolchain/lex/tokenized_buffer.h"
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#include "toolchain/parse/context.h"
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#include "toolchain/parse/handle.h"
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#include "toolchain/parse/node_kind.h"
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#include "toolchain/parse/state.h"
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namespace Carbon::Parse {
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auto HandleAlias(Context& context) -> void {
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auto state = context.PopState();
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context.PushState(state, StateKind::AliasAfterName);
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context.PushState(StateKind::DeclNameAndParams, state.token);
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}
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auto HandleAliasAfterName(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::Alias,
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/*skip_past_likely_end=*/true);
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return;
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}
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if (auto equal = context.ConsumeIf(Lex::TokenKind::Equal)) {
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context.AddLeafNode(NodeKind::AliasInitializer, *equal);
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context.PushState(state, StateKind::AliasFinish);
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context.PushState(StateKind::Expr);
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} else {
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CARBON_DIAGNOSTIC(ExpectedAliasInitializer, Error,
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"`alias` requires a `=` for the source");
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context.emitter().Emit(*context.position(), ExpectedAliasInitializer);
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context.RecoverFromDeclError(state, NodeKind::Alias,
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/*skip_past_likely_end=*/true);
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}
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}
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auto HandleAliasFinish(Context& context) -> void {
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auto state = context.PopState();
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context.AddNodeExpectingDeclSemi(state, NodeKind::Alias,
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Lex::TokenKind::Alias,
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/*is_def_allowed=*/false);
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}
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} // namespace Carbon::Parse
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