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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
37a8bfa488
Rename `ReturnInfo` to `ReturnTypeInfo`. Move it and `InitRepr` into `type_info.h` alongside `ValueRepr`. Replace `ReturnSlot` with `InitRepr`, and extend `InitRepr` to be able to represent the incomplete-type case instead of CHECK-failing. Remove `has_return_slot` from `InitRepr` and instead only provide that as part of `ReturnTypeInfo`.
50 lines
2.0 KiB
C++
50 lines
2.0 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_FUNCTION_H_
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#define CARBON_TOOLCHAIN_CHECK_FUNCTION_H_
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#include "toolchain/check/context.h"
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#include "toolchain/check/decl_name_stack.h"
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#include "toolchain/check/subst.h"
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#include "toolchain/sem_ir/function.h"
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#include "toolchain/sem_ir/ids.h"
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namespace Carbon::Check {
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// State saved for a function definition that has been suspended after
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// processing its declaration and before processing its body. This is used for
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// inline method handling.
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struct SuspendedFunction {
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// The function that was declared.
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SemIR::FunctionId function_id;
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// The instruction ID of the FunctionDecl instruction.
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SemIR::InstId decl_id;
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// The declaration name information of the function. This includes the scope
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// information, such as parameter names.
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DeclNameStack::SuspendedName saved_name_state;
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};
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// Checks that `new_function` has the same parameter types and return type as
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// `prev_function`, applying the specified set of substitutions to the
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// previous function. Prints a suitable diagnostic and returns false if not.
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auto CheckFunctionTypeMatches(Context& context,
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const SemIR::Function& new_function,
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const SemIR::Function& prev_function,
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Substitutions substitutions, bool check_syntax)
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-> bool;
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// Checks that the return type of the specified function is complete, issuing an
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// error if not. This computes the return slot usage for the function if
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// necessary, and returns information about how the function returns its return
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// value.
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auto CheckFunctionReturnType(Context& context, SemIRLoc loc,
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SemIR::Function& function,
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SemIR::SpecificId specific_id)
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-> SemIR::ReturnTypeInfo;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_FUNCTION_H_
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