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https://github.com/carbon-language/carbon-lang.git
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Geoff Romer
5897e57c21
(Split out of #3410) Consistently use `ParenExpr` solely for parenthesized single expressions, and use more syntax-oriented terminology for states and nodes that might represent either a `ParenExpr` or a tuple literal.
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/check/context.h"
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namespace Carbon::Check {
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auto HandleParenExpr(Context& context, Parse::NodeId 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::NodeId parse_node) -> 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, Parse::NodeId /*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::NodeId parse_node) -> 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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