72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
#pragma once
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#include <kernel/ACPI/AML/NamedObject.h>
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#include <kernel/ACPI/AML/Names.h>
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#include <kernel/ACPI/AML/ParseContext.h>
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namespace Kernel::ACPI::AML
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{
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struct Alias final : public AML::NamedObject
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{
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BAN::RefPtr<AML::Node> target;
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Alias(NameSeg name, BAN::RefPtr<AML::Node> target)
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: NamedObject(Node::Type::Alias, name)
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, target(target)
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{}
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bool is_scope() const override { return target->is_scope(); }
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BAN::RefPtr<AML::Node> convert(uint8_t) override { return {}; }
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BAN::RefPtr<Node> copy() override { return target->copy(); }
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BAN::RefPtr<AML::Node> store(BAN::RefPtr<AML::Node> node) override { ASSERT(target); return target->store(node); }
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static ParseResult parse(ParseContext& context)
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{
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ASSERT(context.aml_data.size() >= 1);
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ASSERT(static_cast<Byte>(context.aml_data[0]) == Byte::AliasOp);
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context.aml_data = context.aml_data.slice(1);
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auto source_string = AML::NameString::parse(context.aml_data);
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if (!source_string.has_value())
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return ParseResult::Failure;
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auto source_object = AML::Namespace::root_namespace()->find_object(context.scope, source_string.value(), AML::Namespace::FindMode::Normal);
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auto alias_string = AML::NameString::parse(context.aml_data);
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if (!alias_string.has_value())
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return ParseResult::Failure;
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if (!source_object)
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{
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AML_PRINT("Alias target could not be found");
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return ParseResult::Success;
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}
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auto alias = MUST(BAN::RefPtr<Alias>::create(alias_string.value().path.back(), source_object));
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if (!Namespace::root_namespace()->add_named_object(context, alias_string.value(), alias))
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return ParseResult::Success;
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#if AML_DEBUG_LEVEL >= 2
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alias->debug_print(0);
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AML_DEBUG_PRINTLN("");
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#endif
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return ParseResult::Success;
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}
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void debug_print(int indent) const override
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{
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AML_DEBUG_PRINT_INDENT(indent);
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AML_DEBUG_PRINTLN("Alias {} { ", name);
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target->debug_print(indent + 1);
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AML_DEBUG_PRINTLN("");
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AML_DEBUG_PRINT_INDENT(indent);
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AML_DEBUG_PRINT("}");
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}
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};
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}
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