Files
carbon-lang/toolchain/parse/handle_code_block.cpp
T
Jon Ross-Perkins c555b39a2c Rename parser dir to parse (#3178)
Continuing with #3070. Just a dir and file rename (mostly removing
prefixes, although for parse_tree_fuzzer and parse_tree_file_test I'm
dropping "tree" instead of "parse"). Everything in the parse dir should
be marked as a move.
2023-09-01 01:35:45 +00:00

42 lines
1.4 KiB
C++

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "toolchain/parse/context.h"
namespace Carbon::Parse {
auto HandleCodeBlock(Context& context) -> void {
context.PopAndDiscardState();
context.PushState(State::CodeBlockFinish);
if (context.ConsumeAndAddLeafNodeIf(Lex::TokenKind::OpenCurlyBrace,
NodeKind::CodeBlockStart)) {
context.PushState(State::StatementScopeLoop);
} else {
context.AddLeafNode(NodeKind::CodeBlockStart, *context.position(),
/*has_error=*/true);
// Recover by parsing a single statement.
CARBON_DIAGNOSTIC(ExpectedCodeBlock, Error, "Expected braced code block.");
context.emitter().Emit(*context.position(), ExpectedCodeBlock);
context.PushState(State::Statement);
}
}
auto HandleCodeBlockFinish(Context& context) -> void {
auto state = context.PopState();
// If the block started with an open curly, this is a close curly.
if (context.tokens().GetKind(state.token) == Lex::TokenKind::OpenCurlyBrace) {
context.AddNode(NodeKind::CodeBlock, context.Consume(), state.subtree_start,
state.has_error);
} else {
context.AddNode(NodeKind::CodeBlock, state.token, state.subtree_start,
/*has_error=*/true);
}
}
} // namespace Carbon::Parse