mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-03 18:55:53 +01:00
f97f1a3e11
This tripped over a lowering crash when a member function with self was declared-but-not-defined, so that's why some test cases were updated to have (empty) function definitions. I'll follow-up with/look into a fix for the self-declared-but-not-defined cases separately. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com> Co-authored-by: Carbon Infra Bot <carbon-external-infra@google.com>
64 lines
2.7 KiB
C++
64 lines
2.7 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
#ifndef CARBON_TOOLCHAIN_CHECK_FUNCTION_H_
|
|
#define CARBON_TOOLCHAIN_CHECK_FUNCTION_H_
|
|
|
|
#include "toolchain/check/context.h"
|
|
#include "toolchain/check/decl_name_stack.h"
|
|
#include "toolchain/check/subst.h"
|
|
#include "toolchain/sem_ir/function.h"
|
|
#include "toolchain/sem_ir/ids.h"
|
|
|
|
namespace Carbon::Check {
|
|
|
|
// State saved for a function definition that has been suspended after
|
|
// processing its declaration and before processing its body. This is used for
|
|
// inline method handling.
|
|
struct SuspendedFunction {
|
|
// The function that was declared.
|
|
SemIR::FunctionId function_id;
|
|
// The instruction ID of the FunctionDecl instruction.
|
|
SemIR::InstId decl_id;
|
|
// The declaration name information of the function. This includes the scope
|
|
// information, such as parameter names.
|
|
DeclNameStack::SuspendedName saved_name_state;
|
|
};
|
|
|
|
// Checks that `new_function` has the same parameter types and return type as
|
|
// `prev_function`, or if `prev_function_id` is specified, a specific version of
|
|
// `prev_function`. Prints a suitable diagnostic and returns false if not.
|
|
//
|
|
// `check_syntax` is false if the redeclaration can be called via a thunk with
|
|
// implicit conversions from the original declaration.
|
|
// `check_self` is false if the self declaration does not have to match (for
|
|
// instance in impls of virtual functions).
|
|
auto CheckFunctionTypeMatches(Context& context,
|
|
const SemIR::Function& new_function,
|
|
const SemIR::Function& prev_function,
|
|
SemIR::SpecificId prev_specific_id,
|
|
bool check_syntax, bool check_self) -> bool;
|
|
|
|
inline auto CheckFunctionTypeMatches(Context& context,
|
|
const SemIR::Function& new_function,
|
|
const SemIR::Function& prev_function)
|
|
-> bool {
|
|
return CheckFunctionTypeMatches(context, new_function, prev_function,
|
|
SemIR::SpecificId::None,
|
|
/*check_syntax=*/true, /*check_self=*/true);
|
|
}
|
|
|
|
// Checks that the return type of the specified function is complete, issuing an
|
|
// error if not. This computes the return slot usage for the function if
|
|
// necessary, and returns information about how the function returns its return
|
|
// value.
|
|
auto CheckFunctionReturnType(Context& context, SemIR::LocId loc_id,
|
|
SemIR::Function& function,
|
|
SemIR::SpecificId specific_id)
|
|
-> SemIR::ReturnTypeInfo;
|
|
|
|
} // namespace Carbon::Check
|
|
|
|
#endif // CARBON_TOOLCHAIN_CHECK_FUNCTION_H_
|