• titzer's avatar
    [wasm] Introduce instance types for WebAssembly.* objects. · 17001a05
    titzer authored
    This CL refactors the internal representation of JavaScript-exposed
    WebAssembly objects to be more like other such objects in V8. By introducing
    a new instance type for each of the JS-exposed types, we get more robust
    typechecking without using embedder fields (which were previously used
    when these objects where instance type JS_API_OBJECT).
    
    In addition to the new instance types, the subclasses X of JSObject
    (WasmInstanceObject, WasmMemoryObject, WasmModuleObject, WasmTableObject)
    now have appropriate Is##X() methods on Object and are now robust.
    
    BUG=v8:6547
    CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_rel_ng
    
    Review-Url: https://codereview.chromium.org/2964943002
    Cr-Commit-Position: refs/heads/master@{#46475}
    17001a05
objects-body-descriptors-inl.h 27.7 KB