mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:10:12 +01:00
Richard Smith
4a21b6af9b
The main change here is to form a specific when checking an interface function against an impl function, instead of just substituting the `Self` type.
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`, or if `prev_function_id` is specified, a specific version of
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// `prev_function`. Prints a suitable diagnostic and returns false if not.
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auto CheckFunctionTypeMatches(
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Context& context, const SemIR::Function& new_function,
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const SemIR::Function& prev_function,
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SemIR::SpecificId prev_specific_id = SemIR::SpecificId::Invalid,
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bool check_syntax = true) -> 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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