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LibJS+LibWeb: Implement resizable ArrayBuffer support for TypedArray

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This is (part of) a normative change in the ECMA-262 spec. See:
a9ae96e
This commit is contained in:
Timothy Flynn 2023-12-24 14:55:10 -05:00 • committed by Andreas Kling
parent c7fec9424c
commit 9258d7b98a
47 changed files with 2059 additions and 884 deletions
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25
Userland/Libraries/LibJS/Print.cpp
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@ -445,19 +445,26 @@ ErrorOr<void> print_number(JS::PrintContext& print_context, T number)
ErrorOr<void> print_typed_array(JS::PrintContext& print_context, JS::TypedArrayBase const& typed_array_base, HashTable<JS::Object*>& seen_objects)
{
auto& array_buffer = *typed_array_base.viewed_array_buffer();
auto length = typed_array_base.array_length();
auto typed_array_record = JS::make_typed_array_with_buffer_witness_record(typed_array_base, JS::ArrayBuffer::Order::SeqCst);
TRY(print_type(print_context, typed_array_base.class_name()));
TRY(js_out(print_context, "\n buffer: "));
TRY(print_type(print_context, "ArrayBuffer"sv));
TRY(js_out(print_context, " @ {:p}", &array_buffer));
if (JS::is_typed_array_out_of_bounds(typed_array_record)) {
TRY(js_out(print_context, "\n <out of bounds>"));
return {};
}
auto length = JS::typed_array_length(typed_array_record);
TRY(js_out(print_context, "\n length: "));
TRY(print_value(print_context, JS::Value(length), seen_objects));
TRY(js_out(print_context, "\n byteLength: "));
TRY(print_value(print_context, JS::Value(typed_array_base.byte_length()), seen_objects));
TRY(js_out(print_context, "\n buffer: "));
TRY(print_type(print_context, "ArrayBuffer"sv));
if (array_buffer.is_detached())
TRY(js_out(print_context, " (detached)"));
TRY(js_out(print_context, " @ {:p}", &array_buffer));
if (length == 0 || array_buffer.is_detached())
return {};
TRY(print_value(print_context, JS::Value(JS::typed_array_byte_length(typed_array_record)), seen_objects));
TRY(js_out(print_context, "\n"));
// FIXME: This kinda sucks.
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \