Files
carbon-lang/toolchain/check/name_component.h
T
Lucile Rose Nihlen 83ca5b71e3 Move default value inst ids to a dedicated value store. (#7810)
Per #7737 we move the default value `InstId` storage from
a block in the `SemIR::Function` data structure to a
`SemIR::File` scoped `ValueStore`.

Moves the default value consistency checking to the general
merge argument pattern matching logic, which changes the
error message issued to the generic one.
2026-09-21 18:27:01 +00:00

68 lines
2.3 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_NAME_COMPONENT_H_
#define CARBON_TOOLCHAIN_CHECK_NAME_COMPONENT_H_
#include "toolchain/check/node_stack.h"
#include "toolchain/parse/node_ids.h"
#include "toolchain/sem_ir/function.h"
#include "toolchain/sem_ir/ids.h"
namespace Carbon::Check {
class Context;
// A component in a declaration name, such as `C[T: type](N: T)` in
// `fn C[T: type](N: T).F() {}`.
struct NameComponent {
// The name of the declaration.
Parse::NodeId name_loc_id;
SemIR::NameId name_id;
// Parse tree bounds for the parameters, including both implicit and explicit
// parameters. These will be compared to match between declaration and
// definition.
Parse::NodeId first_param_node_id;
Parse::NodeId last_param_node_id;
// The implicit parameter list.
Parse::NodeId implicit_params_loc_id;
SemIR::InstBlockId implicit_param_patterns_id;
// The explicit parameter list.
Parse::NodeId params_loc_id;
SemIR::InstBlockId param_patterns_id;
// The `Call` parameters of the entity, if it's a function (see the
// corresponding members of SemIR::FunctionFields and
// SemIR::EntityWithParamsBase).
SemIR::InstBlockId call_param_patterns_id;
SemIR::InstBlockId call_params_id;
SemIR::Function::CallParamIndexRanges param_ranges;
// The pattern block.
SemIR::InstBlockId pattern_block_id;
// The `UnspecifiedValue` insts from the parameter default values, if any.
SemIR::InstBlockId unspecified_values_block_id;
};
// Pops a name component from the node stack (and pattern block stack, if it has
// parameters).
auto PopNameComponent(Context& context,
SemIR::InstId return_pattern_id = SemIR::InstId::None)
-> NameComponent;
// Equivalent to PopNameComponent, but also diagnoses if the name component has
// parameters. Sets `*diagnosed_params` to true when diagnosing parameters if
// it's not null.
auto PopNameComponentWithoutParams(Context& context, Lex::TokenKind introducer,
bool* diagnosed_params = nullptr)
-> NameComponent;
} // namespace Carbon::Check
#endif // CARBON_TOOLCHAIN_CHECK_NAME_COMPONENT_H_