Files
carbon-lang/toolchain/check/handle_struct.cpp
T
Richard Smith a46e7dd967 Remove most of the metaprogramming in node.h in favor of listing all the members in the typed node structs. (#3310)
Split `node.h` into separate files for ID types (`id.h`) and for typed
nodes (`typed_nodes.h`). The per-node-kind data is now specified as part
of declaring the typed nodes, and is removed from the node kinds
x-macros, which now simply enumerate the node kinds.
2023-10-20 20:26:10 +00:00

108 lines
3.6 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/check/context.h"
#include "toolchain/check/convert.h"
namespace Carbon::Check {
auto HandleStructComma(Context& context, Parse::Node /*parse_node*/) -> bool {
context.ParamOrArgComma();
return true;
}
auto HandleStructFieldDesignator(Context& context, Parse::Node /*parse_node*/)
-> bool {
// This leaves the designated name on top because the `.` isn't interesting.
CARBON_CHECK(
context.parse_tree().node_kind(context.node_stack().PeekParseNode()) ==
Parse::NodeKind::Name);
return true;
}
auto HandleStructFieldType(Context& context, Parse::Node parse_node) -> bool {
auto [type_node, type_id] = context.node_stack().PopExpressionWithParseNode();
SemIR::TypeId cast_type_id = ExpressionAsType(context, type_node, type_id);
auto [name_node, name_id] =
context.node_stack().PopWithParseNode<Parse::NodeKind::Name>();
context.AddNodeAndPush(
parse_node, SemIR::StructTypeField{name_node, name_id, cast_type_id});
return true;
}
auto HandleStructFieldUnknown(Context& context, Parse::Node parse_node)
-> bool {
return context.TODO(parse_node, "HandleStructFieldUnknown");
}
auto HandleStructFieldValue(Context& context, Parse::Node parse_node) -> bool {
auto [value_parse_node, value_node_id] =
context.node_stack().PopExpressionWithParseNode();
StringId name_id = context.node_stack().Pop<Parse::NodeKind::Name>();
// Store the name for the type.
context.args_type_info_stack().AddNode(SemIR::StructTypeField{
parse_node, name_id,
context.semantics_ir().GetNode(value_node_id).type_id()});
// Push the value back on the stack as an argument.
context.node_stack().Push(parse_node, value_node_id);
return true;
}
auto HandleStructLiteral(Context& context, Parse::Node parse_node) -> bool {
auto refs_id = context.ParamOrArgEnd(
Parse::NodeKind::StructLiteralOrStructTypeLiteralStart);
context.PopScope();
context.node_stack()
.PopAndDiscardSoloParseNode<
Parse::NodeKind::StructLiteralOrStructTypeLiteralStart>();
auto type_block_id = context.args_type_info_stack().Pop();
auto type_id = context.CanonicalizeStructType(parse_node, type_block_id);
auto value_id =
context.AddNode(SemIR::StructLiteral{parse_node, type_id, refs_id});
context.node_stack().Push(parse_node, value_id);
return true;
}
auto HandleStructLiteralOrStructTypeLiteralStart(Context& context,
Parse::Node parse_node)
-> bool {
context.PushScope();
context.node_stack().Push(parse_node);
// At this point we aren't sure whether this will be a value or type literal,
// so we push onto args irrespective. It just won't be used for a type
// literal.
context.args_type_info_stack().Push();
context.ParamOrArgStart();
return true;
}
auto HandleStructTypeLiteral(Context& context, Parse::Node parse_node) -> bool {
auto refs_id = context.ParamOrArgEnd(
Parse::NodeKind::StructLiteralOrStructTypeLiteralStart);
context.PopScope();
context.node_stack()
.PopAndDiscardSoloParseNode<
Parse::NodeKind::StructLiteralOrStructTypeLiteralStart>();
// This is only used for value literals.
context.args_type_info_stack().Pop();
CARBON_CHECK(refs_id != SemIR::NodeBlockId::Empty)
<< "{} is handled by StructLiteral.";
context.AddNodeAndPush(
parse_node,
SemIR::StructType{parse_node, SemIR::TypeId::TypeType, refs_id});
return true;
}
} // namespace Carbon::Check