Files
swift-mirror/lib/Syntax/SyntaxNodes.cpp.gyb
Alex Hoppen a356c89e92 [libSyntax] Don't reference count SyntaxData
Instead, reference count the SyntaxData's parent. This has a couple of
advantages:
1. We eliminate a const_cast that was potentially unsafe
2. It more closely resembles the architecture on the Swift side
3. It has the potential to be optimised further if the parent can be
   accessed in an unsafe, non-reference-counted way
2021-01-29 13:08:12 +01:00

109 lines
3.6 KiB
C++

%{
# -*- mode: C++ -*-
from gyb_syntax_support import *
NODE_MAP = create_node_map()
# Ignore the following admonition; it applies to the resulting .cpp file only
}%
//// Automatically Generated From SyntaxNodes.cpp.gyb.
//// Do Not Edit Directly!
//===---------------- SyntaxNodes.cpp - Syntax Node definitions -----------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "swift/Syntax/SyntaxNodes.h"
using namespace swift;
using namespace swift::syntax;
% for node in SYNTAX_NODES:
% if node.requires_validation():
void ${node.name}::validate() const {
#ifndef NDEBUG
auto raw = Data.getRaw();
if (isMissing()) return;
assert(raw->getLayout().size() == ${len(node.children)});
% for child in node.children:
% if child.token_choices:
% choices = ", ".join("tok::" + choice.kind
% for choice in child.token_choices)
syntax_assert_child_token(raw, ${child.name}, ${choices});
% end
% if child.main_token() and child.text_choices:
% token_kind = child.main_token().kind
% choices = ", ".join("\"%s\"" % choice
% for choice in child.text_choices)
syntax_assert_child_token_text(raw, ${child.name},
tok::${token_kind}, ${choices});
% end
% if child.node_choices:
if (auto &__Child = raw->getChild(Cursor::${child.name}))
assert(${check_child_condition_raw(child)}(__Child));
% end
% end
#endif
}
% end
% for child in node.children:
% if child.is_optional:
llvm::Optional<${child.type_name}> ${node.name}::get${child.name}() const {
auto ChildData = Data.getChild(Cursor::${child.name});
if (!ChildData)
return llvm::None;
return ${child.type_name}(*ChildData);
}
% else:
${child.type_name} ${node.name}::get${child.name}() const {
return ${child.type_name}(*Data.getChild(Cursor::${child.name}));
}
% end
% child_node = NODE_MAP.get(child.syntax_kind)
% if child_node and child_node.is_syntax_collection():
% child_elt = child.collection_element_name
% child_elt_type = child_node.collection_element_type
% if not child_elt:
% raise Exception("'collection_element_name' should be set for '%s' of '%s'" % (child.name, node.name))
% end
${node.name} ${node.name}::add${child_elt}(${child_elt_type} ${child_elt}) {
RC<RawSyntax> raw = getRaw()->getChild(Cursor::${child.name});
if (raw)
raw = raw->append(${child_elt}.getRaw());
else
raw = RawSyntax::makeAndCalcLength(SyntaxKind::${child_node.syntax_kind},
{${child_elt}.getRaw()}, SourcePresence::Present);
return ${node.name}(Data.replacingChild(raw, Cursor::${child.name}));
}
% end
${node.name} ${node.name}::with${child.name}(
llvm::Optional<${child.type_name}> New${child.type_name}) {
RC<RawSyntax> raw;
if (New${child.type_name}.hasValue()) {
raw = New${child.type_name}->getRaw();
} else {
% if child.is_optional:
raw = nullptr;
% else:
raw = ${make_missing_child(child)};
% end
}
return ${node.name}(Data.replacingChild(raw, Cursor::${child.name}));
}
% end
% end
const char* swift::syntax::getSyntaxStructureVersioningIdentifier() {
return "${calculate_node_hash()}";
}