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josh11bandChandler Carruth
48c986f52d
Goal is to increase type safety, though more work needs to be done (see added TODOs). Note that, after this change, check handlers corresponding to deleted parse node kinds will no longer compile. --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
55 lines
1.8 KiB
C++
55 lines
1.8 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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namespace Carbon::Check {
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auto HandleParenExpr(Context& context, Parse::ParenExprId parse_node) -> bool {
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auto value_id = context.node_stack().PopExpr();
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// ParamOrArgStart was called for tuple handling; clean up the ParamOrArg
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// support for non-tuple cases.
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context.ParamOrArgEnd(Parse::NodeKind::ExprOpenParen);
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context.node_stack()
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.PopAndDiscardSoloParseNode<Parse::NodeKind::ExprOpenParen>();
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context.node_stack().Push(parse_node, value_id);
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return true;
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}
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auto HandleExprOpenParen(Context& context, Parse::ExprOpenParenId parse_node)
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-> bool {
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context.node_stack().Push(parse_node);
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context.ParamOrArgStart();
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return true;
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}
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auto HandleTupleLiteralComma(Context& context,
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Parse::TupleLiteralCommaId /*parse_node*/)
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-> bool {
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context.ParamOrArgComma();
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return true;
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}
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auto HandleTupleLiteral(Context& context, Parse::TupleLiteralId parse_node)
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-> bool {
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auto refs_id = context.ParamOrArgEnd(Parse::NodeKind::ExprOpenParen);
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context.node_stack()
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.PopAndDiscardSoloParseNode<Parse::NodeKind::ExprOpenParen>();
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const auto& inst_block = context.inst_blocks().Get(refs_id);
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llvm::SmallVector<SemIR::TypeId> type_ids;
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type_ids.reserve(inst_block.size());
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for (auto inst : inst_block) {
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type_ids.push_back(context.insts().Get(inst).type_id());
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}
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auto type_id = context.CanonicalizeTupleType(parse_node, type_ids);
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auto value_id =
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context.AddInst(SemIR::TupleLiteral{parse_node, type_id, refs_id});
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context.node_stack().Push(parse_node, value_id);
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return true;
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}
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} // namespace Carbon::Check
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