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LibWeb: Manually convert the js bigint to a wasm i64 value
SignedBigInteger::export() generates sign-magnitude, but the native i64 type uses 2's comp, make this work by exporting it as unsigned and tweaking the sign later.
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1 changed files with 5 additions and 4 deletions
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@ -374,10 +374,11 @@ Optional<Wasm::Value> to_webassembly_value(JS::Value value, const Wasm::ValueTyp
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if (vm.exception())
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if (vm.exception())
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return {};
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return {};
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auto value = bigint->big_integer().divided_by(two_64).remainder;
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auto value = bigint->big_integer().divided_by(two_64).remainder;
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VERIFY(value.trimmed_length() <= 2);
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VERIFY(value.unsigned_value().trimmed_length() <= 2);
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BigEndian<i64> integer { 0 };
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i64 integer = static_cast<i64>(value.unsigned_value().to_u64());
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value.export_data({ &integer, 2 });
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if (value.is_negative())
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return Wasm::Value { static_cast<i64>(integer) };
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integer = -integer;
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return Wasm::Value { integer };
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}
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}
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case Wasm::ValueType::I32: {
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case Wasm::ValueType::I32: {
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auto _i32 = value.to_i32(global_object);
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auto _i32 = value.to_i32(global_object);
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