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Jon Ross-Perkins
b42612bcec
I've been thinking about this since we decided to add placeholders in the parse tree. This allows a clearer division of work in check handling, where we were doing work for ExprOpenParen that's only necessary for tuples (splitting/renaming handle_paren.cpp accordingly).
44 lines
1.4 KiB
C++
44 lines
1.4 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 HandleTupleLiteralStart(Context& context,
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Parse::TupleLiteralStartId node_id) -> bool {
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context.node_stack().Push(node_id);
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context.param_and_arg_refs_stack().Push();
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return true;
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}
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auto HandleTupleLiteralComma(Context& context,
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Parse::TupleLiteralCommaId /*node_id*/) -> bool {
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context.param_and_arg_refs_stack().ApplyComma();
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return true;
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}
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auto HandleTupleLiteral(Context& context, Parse::TupleLiteralId node_id)
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-> bool {
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auto refs_id = context.param_and_arg_refs_stack().EndAndPop(
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Parse::NodeKind::TupleLiteralStart);
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context.node_stack()
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.PopAndDiscardSoloNodeId<Parse::NodeKind::TupleLiteralStart>();
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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.GetTupleType(type_ids);
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auto value_id =
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context.AddInst({node_id, SemIR::TupleLiteral{type_id, refs_id}});
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context.node_stack().Push(node_id, value_id);
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return true;
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}
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} // namespace Carbon::Check
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