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LibWasm: Load and instantiate tables

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This commit is a fairly large refactor, mainly because it unified the
two different ways that existed to represent references.
Now Reference values are also a kind of value.
It also implements a printer for values/references instead of copying
the implementation everywhere.
This commit is contained in:
Ali Mohammad Pur 2021-06-04 03:30:09 +04:30 • committed by Ali Mohammad Pur
parent c392a0cf7f
commit be62e4d1d7
10 changed files with 350 additions and 192 deletions
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102
Userland/Libraries/LibWasm/Printer/Printer.cpp
View file

@ -6,6 +6,7 @@
#include <AK/HashMap.h>
#include <AK/TemporaryChange.h>
#include <LibWasm/AbstractMachine/AbstractMachine.h>
#include <LibWasm/Printer/Printer.h>
namespace Wasm {
@ -170,53 +171,52 @@ void Printer::print(const Wasm::ElementSection& section)
{
TemporaryChange change { m_indent, m_indent + 1 };
for (auto& entry : section.segments())
entry.visit([this](auto& segment) { print(segment); });
print(entry);
}
print_indent();
print(")\n");
}
void Printer::print(const Wasm::ElementSection::SegmentType0&)
{
}
void Printer::print(const Wasm::ElementSection::SegmentType1& segment)
void Printer::print(const Wasm::ElementSection::Element& element)
{
print_indent();
print("(element segment kind 1\n");
print("(element ");
{
TemporaryChange<size_t> change { m_indent, 0 };
print(element.type);
}
{
TemporaryChange change { m_indent, m_indent + 1 };
for (auto& index : segment.function_indices) {
print_indent();
print("(function index {})\n", index.value());
print_indent();
print("(init\n");
{
TemporaryChange change { m_indent, m_indent + 1 };
for (auto& entry : element.init)
print(entry);
}
print_indent();
print(")\n");
print_indent();
print("(mode ");
element.mode.visit(
[this](const ElementSection::Active& active) {
print("\n");
{
TemporaryChange change { m_indent, m_indent + 1 };
print_indent();
print("(active index {}\n", active.index.value());
{
print(active.expression);
}
print_indent();
print(")\n");
}
print_indent();
},
[this](const ElementSection::Passive&) { print("passive"); },
[this](const ElementSection::Declarative&) { print("declarative"); });
print(")\n");
}
print_indent();
print(")\n");
}
void Printer::print(const Wasm::ElementSection::SegmentType2&)
{
}
void Printer::print(const Wasm::ElementSection::SegmentType3&)
{
}
void Printer::print(const Wasm::ElementSection::SegmentType4&)
{
}
void Printer::print(const Wasm::ElementSection::SegmentType5&)
{
}
void Printer::print(const Wasm::ElementSection::SegmentType6&)
{
}
void Printer::print(const Wasm::ElementSection::SegmentType7&)
{
}
void Printer::print(const Wasm::ExportSection& section)
@ -312,7 +312,7 @@ void Printer::print(const Wasm::FunctionType& type)
print(param);
}
print_indent();
print("\n");
print(")\n");
}
{
TemporaryChange change { m_indent, m_indent + 1 };
@ -622,6 +622,34 @@ void Printer::print(const Wasm::ValueType& type)
print_indent();
print("(type {})\n", ValueType::kind_name(type.kind()));
}
void Printer::print(const Wasm::Value& value)
{
print_indent();
print("{} ", value.value().visit([&]<typename T>(const T& value) {
if constexpr (IsSame<Wasm::Reference, T>)
return String::formatted(
"addr({})",
value.ref().visit(
[](const Wasm::Reference::Null&) { return String("null"); },
[](const auto& ref) { return String::number(ref.address.value()); }));
else
return String::formatted("{}", value);
}));
TemporaryChange<size_t> change { m_indent, 0 };
print(value.type());
}
void Printer::print(const Wasm::Reference& value)
{
print_indent();
print(
"addr({})\n",
value.ref().visit(
[](const Wasm::Reference::Null&) { return String("null"); },
[](const auto& ref) { return String::number(ref.address.value()); }));
}
}
HashMap<Wasm::OpCode, String> Wasm::Names::instruction_names {