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48 lines
1.7 KiB
C++
48 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/node_kind.h"
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#include "toolchain/parse/state.h"
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namespace Carbon::Parse {
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auto HandleArrayExpr(Context& context) -> void {
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auto state = context.PopState();
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context.AddLeafNode(NodeKind::ArrayExprStart,
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context.ConsumeChecked(Lex::TokenKind::OpenSquareBracket),
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state.has_error);
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context.PushState(state, State::ArrayExprSemi);
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context.PushState(State::Expr);
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}
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auto HandleArrayExprSemi(Context& context) -> void {
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auto state = context.PopState();
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auto semi = context.ConsumeIf(Lex::TokenKind::Semi);
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if (!semi) {
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context.AddNode(NodeKind::ArrayExprSemi, *context.position(),
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state.subtree_start, true);
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CARBON_DIAGNOSTIC(ExpectedArraySemi, Error, "Expected `;` in array type.");
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context.emitter().Emit(*context.position(), ExpectedArraySemi);
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state.has_error = true;
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} else {
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context.AddNode(NodeKind::ArrayExprSemi, *semi, state.subtree_start,
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state.has_error);
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}
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context.PushState(state, State::ArrayExprFinish);
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if (!context.PositionIs(Lex::TokenKind::CloseSquareBracket)) {
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context.PushState(State::Expr);
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}
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}
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auto HandleArrayExprFinish(Context& context) -> void {
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auto state = context.PopState();
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context.ConsumeAndAddCloseSymbol(*(Lex::TokenIterator(state.token)), state,
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NodeKind::ArrayExpr);
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}
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} // namespace Carbon::Parse
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