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embind - Fix reading various bindings types from val on wasm64.
- The function simpleReadValueFromPointer was always reading pointers as i32 numbers which was incorrect on wasm64. - Decoding of std::wstring was using a right shift to read pointers. Right shift was truncating numbers larger than i32 and causing misreads. - Added tests to execute readValueFromPointer on all the binding types to ensure these don't break on wasm64.
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,10 +1,10 @@ | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| #include <emscripten/bind.h> | ||
| #include <emscripten.h> | ||
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| using namespace emscripten; | ||
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| struct ValueObject { | ||
| ValueObject(): value(43) {}; | ||
| int value; | ||
| }; | ||
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| struct ValueArray { | ||
| ValueArray(): x(44) {}; | ||
| int x; | ||
| }; | ||
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| struct Foo { | ||
| Foo(): value(45) {}; | ||
| int value; | ||
| }; | ||
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| enum Enum { ONE, TWO }; | ||
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| EMSCRIPTEN_BINDINGS(xxx) { | ||
| value_object<ValueObject>("ValueObject") | ||
| .field("value", &ValueObject::value); | ||
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| value_array<ValueArray>("ValueArray") | ||
| .element(&ValueArray::x); | ||
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| class_<Foo>("Foo") | ||
| .property("value", &Foo::value); | ||
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| enum_<Enum>("Enum") | ||
| .value("ONE", ONE) | ||
| .value("TWO", TWO); | ||
| } | ||
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| int main() { | ||
| EM_ASM( | ||
| globalThis["passthrough"] = (arg) => { | ||
| return arg; | ||
| }; | ||
| globalThis["passthroughValueObject"] = (arg) => { | ||
| return arg.value; | ||
| }; | ||
| globalThis["passthroughValueArray"] = (arg) => { | ||
| return arg[0]; | ||
| }; | ||
| globalThis["passthroughClass"] = (arg) => { | ||
| const value = arg.value; | ||
| arg.delete(); | ||
| return value; | ||
| }; | ||
| globalThis["passthroughMemoryView"] = (arg) => { | ||
| return arg[2]; | ||
| }; | ||
| ); | ||
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| // These tests execute all the various readValueFromPointer functions for each | ||
| // of the different binding types. | ||
| assert(val::global().call<bool>("passthrough", true)); | ||
| assert(val::global().call<int>("passthrough", 42) == 42); | ||
| assert(val::global().call<double>("passthrough", 42.2) == 42.2); | ||
| ValueObject vo; | ||
| assert(val::global().call<int>("passthroughValueObject", vo) == 43); | ||
| ValueArray va; | ||
| assert(val::global().call<int>("passthroughValueArray", va) == 44); | ||
| Foo foo; | ||
| assert(val::global().call<int>("passthroughClass", foo) == 45); | ||
| assert(val::global().call<std::string>("passthrough", val("abc")) == "abc"); | ||
| std::string str = "hello"; | ||
| assert(val::global().call<std::string>("passthrough", str) == "hello"); | ||
| std::wstring wstr = L"abc"; | ||
| assert(val::global().call<std::wstring>("passthrough", wstr) == L"abc"); | ||
| static const int data[] = {0, 1, 2}; | ||
| assert(val::global().call<int>("passthroughMemoryView", typed_memory_view(3, data)) == 2); | ||
| assert(val::global().call<Enum>("passthrough", ONE) == ONE); | ||
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| return 0; | ||
| } |
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