mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:20:11 +01:00
Geoff Romerandjosh11b
f5b5731c76
This enables us to decouple class fields from pattern matching. --------- Co-authored-by: josh11b <15258583+josh11b@users.noreply.github.com>
82 lines
3.1 KiB
C++
82 lines
3.1 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
|
|
|
|
#include "toolchain/parse/context.h"
|
|
#include "toolchain/parse/handle.h"
|
|
|
|
namespace Carbon::Parse {
|
|
|
|
// Handles processing after params, deciding whether it's a declaration or
|
|
// definition.
|
|
static auto HandleDeclOrDefinition(Context& context, NodeKind decl_kind,
|
|
NodeKind definition_start_kind,
|
|
StateKind definition_finish_state) -> void {
|
|
auto state = context.PopState();
|
|
|
|
if (state.has_error || !context.PositionIs(Lex::TokenKind::OpenCurlyBrace)) {
|
|
context.AddNodeExpectingDeclSemi(state, decl_kind,
|
|
context.tokens().GetKind(state.token),
|
|
/*is_def_allowed=*/true);
|
|
return;
|
|
}
|
|
|
|
context.PushState(state, definition_finish_state);
|
|
if (decl_kind == NodeKind::ClassDecl) {
|
|
context.PushState(StateKind::DeclScopeLoopAsClass);
|
|
} else {
|
|
context.PushState(StateKind::DeclScopeLoopAsNonClass);
|
|
}
|
|
context.AddNode(definition_start_kind, context.Consume(), state.has_error);
|
|
}
|
|
|
|
auto HandleDeclOrDefinitionAsClass(Context& context) -> void {
|
|
HandleDeclOrDefinition(context, NodeKind::ClassDecl,
|
|
NodeKind::ClassDefinitionStart,
|
|
StateKind::DeclDefinitionFinishAsClass);
|
|
}
|
|
|
|
auto HandleDeclOrDefinitionAsImpl(Context& context) -> void {
|
|
HandleDeclOrDefinition(context, NodeKind::ImplDecl,
|
|
NodeKind::ImplDefinitionStart,
|
|
StateKind::DeclDefinitionFinishAsImpl);
|
|
}
|
|
|
|
auto HandleDeclOrDefinitionAsInterface(Context& context) -> void {
|
|
HandleDeclOrDefinition(context, NodeKind::InterfaceDecl,
|
|
NodeKind::InterfaceDefinitionStart,
|
|
StateKind::DeclDefinitionFinishAsInterface);
|
|
}
|
|
|
|
auto HandleDeclOrDefinitionAsNamedConstraint(Context& context) -> void {
|
|
HandleDeclOrDefinition(context, NodeKind::NamedConstraintDecl,
|
|
NodeKind::NamedConstraintDefinitionStart,
|
|
StateKind::DeclDefinitionFinishAsNamedConstraint);
|
|
}
|
|
|
|
// Handles parsing after the declaration scope of a type.
|
|
static auto HandleDeclDefinitionFinish(Context& context,
|
|
NodeKind definition_kind) -> void {
|
|
auto state = context.PopState();
|
|
|
|
context.AddNode(definition_kind, context.Consume(), state.has_error);
|
|
}
|
|
|
|
auto HandleDeclDefinitionFinishAsClass(Context& context) -> void {
|
|
HandleDeclDefinitionFinish(context, NodeKind::ClassDefinition);
|
|
}
|
|
|
|
auto HandleDeclDefinitionFinishAsImpl(Context& context) -> void {
|
|
HandleDeclDefinitionFinish(context, NodeKind::ImplDefinition);
|
|
}
|
|
|
|
auto HandleDeclDefinitionFinishAsInterface(Context& context) -> void {
|
|
HandleDeclDefinitionFinish(context, NodeKind::InterfaceDefinition);
|
|
}
|
|
|
|
auto HandleDeclDefinitionFinishAsNamedConstraint(Context& context) -> void {
|
|
HandleDeclDefinitionFinish(context, NodeKind::NamedConstraintDefinition);
|
|
}
|
|
|
|
} // namespace Carbon::Parse
|