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41 lines
1.5 KiB
C++
41 lines
1.5 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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#ifndef CARBON_TOOLCHAIN_CHECK_RETURN_H_
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#define CARBON_TOOLCHAIN_CHECK_RETURN_H_
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#include "toolchain/check/context.h"
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#include "toolchain/parse/node_ids.h"
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namespace Carbon::Check {
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// Gets the function that a `return` statement in the current context would
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// return from.
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auto GetCurrentFunctionForReturn(Context& context) -> SemIR::Function&;
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// Gets the return slot of the function that lexically encloses the current
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// location.
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auto GetCurrentReturnSlot(Context& context) -> SemIR::InstId;
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// Checks a `returned var` binding and registers it as the current `returned
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// var` in this scope.
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auto RegisterReturnedVar(Context& context, Parse::NodeId returned_node,
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Parse::NodeId type_node, SemIR::TypeId type_id,
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SemIR::InstId bind_id) -> void;
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// Checks and builds SemIR for a `return;` statement.
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auto BuildReturnWithNoExpr(Context& context, Parse::ReturnStatementId node_id)
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-> void;
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// Checks and builds SemIR for a `return <expression>;` statement.
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auto BuildReturnWithExpr(Context& context, Parse::ReturnStatementId node_id,
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SemIR::InstId expr_id) -> void;
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// Checks and builds SemIR for a `return var;` statement.
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auto BuildReturnVar(Context& context, Parse::ReturnStatementId node_id) -> void;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_RETURN_H_
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