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https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
fea6cf88fc
Combine the initialization, implicit conversion, and value category conversion functions into a single function. This substantially reduces the duplication between these steps, and ensures that we support the same set of conversions in all these contexts. This also fixes some issues where we would not use the proper value representation for tuples and structs after performing implicit conversions.
59 lines
1.9 KiB
C++
59 lines
1.9 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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#include "toolchain/check/convert.h"
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#include "toolchain/sem_ir/node.h"
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namespace Carbon::Check {
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auto HandleVariableDeclaration(Context& context, Parse::Node parse_node)
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-> bool {
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// Handle the optional initializer.
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auto init_id = SemIR::NodeId::Invalid;
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bool has_init =
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context.parse_tree().node_kind(context.node_stack().PeekParseNode()) !=
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Parse::NodeKind::PatternBinding;
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if (has_init) {
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init_id = context.node_stack().PopExpression();
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context.node_stack()
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.PopAndDiscardSoloParseNode<Parse::NodeKind::VariableInitializer>();
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}
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// Get the storage and add it to name lookup.
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SemIR::NodeId var_id =
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context.node_stack().Pop<Parse::NodeKind::PatternBinding>();
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auto var = context.semantics_ir().GetNode(var_id);
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auto name_id = var.GetAsVarStorage();
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context.AddNameToLookup(var.parse_node(), name_id, var_id);
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// If there was an initializer, assign it to storage.
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if (has_init) {
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init_id = Initialize(context, parse_node, var_id, init_id);
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// TODO: Consider using different node kinds for assignment versus
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// initialization.
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context.AddNode(SemIR::Node::Assign::Make(parse_node, var_id, init_id));
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}
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context.node_stack()
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.PopAndDiscardSoloParseNode<Parse::NodeKind::VariableIntroducer>();
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return true;
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}
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auto HandleVariableIntroducer(Context& context, Parse::Node parse_node)
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-> bool {
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// No action, just a bracketing node.
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context.node_stack().Push(parse_node);
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return true;
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}
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auto HandleVariableInitializer(Context& context, Parse::Node parse_node)
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-> bool {
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// No action, just a bracketing node.
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context.node_stack().Push(parse_node);
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return true;
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}
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} // namespace Carbon::Check
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