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LibWeb: Add support for accessing exported wasm table instances

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This commit is contained in:
Ali Mohammad Pur 2022-11-20 06:51:24 +03:30 • committed by Ali Mohammad Pur
parent 0d1471e72f
commit af511a64cd
3 changed files with 13 additions and 0 deletions
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9
Userland/Libraries/LibWeb/WebAssembly/WebAssemblyInstanceObject.cpp
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@ -14,6 +14,7 @@
#include <LibWeb/WebAssembly/WebAssemblyInstanceObject.h>
#include <LibWeb/WebAssembly/WebAssemblyMemoryPrototype.h>
#include <LibWeb/WebAssembly/WebAssemblyObject.h>
#include <LibWeb/WebAssembly/WebAssemblyTableObject.h>
namespace Web::Bindings {
@ -51,6 +52,14 @@ void WebAssemblyInstanceObject::initialize(JS::Realm& realm)
}
m_exports_object->define_direct_property(export_.name(), *object, JS::default_attributes);
},
[&](Wasm::TableAddress const& address) {
Optional<WebAssemblyTableObject*> object = cache.table_instances.get(address);
if (!object.has_value()) {
object = heap().allocate<Web::Bindings::WebAssemblyTableObject>(realm, realm, address);
cache.table_instances.set(address, *object);
}
m_exports_object->define_direct_property(export_.name(), *object, JS::default_attributes);
},
[&](auto const&) {
// FIXME: Implement other exports!
});

2
Userland/Libraries/LibWeb/WebAssembly/WebAssemblyObject.cpp
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@ -84,6 +84,8 @@ void WebAssemblyObject::visit_edges(Visitor& visitor)
visitor.visit(entry.value);
for (auto& entry : module_cache.memory_instances)
visitor.visit(entry.value);
for (auto& entry : module_cache.table_instances)
visitor.visit(entry.value);
}
}

2
Userland/Libraries/LibWeb/WebAssembly/WebAssemblyObject.h
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@ -14,6 +14,7 @@
namespace Web::Bindings {
class WebAssemblyMemoryObject;
class WebAssemblyTableObject;
JS::ThrowCompletionOr<size_t> parse_module(JS::VM&, JS::Object* buffer);
JS::NativeFunction* create_native_function(JS::VM&, Wasm::FunctionAddress address, String const& name);
JS::Value to_js_value(JS::VM&, Wasm::Value& wasm_value);
@ -47,6 +48,7 @@ public:
struct ModuleCache {
HashMap<Wasm::FunctionAddress, JS::FunctionObject*> function_instances;
HashMap<Wasm::MemoryAddress, WebAssemblyMemoryObject*> memory_instances;
HashMap<Wasm::TableAddress, WebAssemblyTableObject*> table_instances;
};
struct GlobalModuleCache {
HashMap<Wasm::FunctionAddress, JS::NativeFunction*> function_instances;