WebNitroErrorSlot class final

The C NitroError out-param struct read from WASM linear memory.

wasm32 layout (verified against an Emscripten build — 20 bytes):

offset 0  : int8   hasError
offset 4  : uint32 name        (char*, strdup'd by the bridge)
offset 8  : uint32 message     (char*)
offset 12 : uint32 code        (char*, may be 0)
offset 16 : uint32 stackTrace  (char*, may be 0)

The struct itself is Dart-allocated (module malloc); the string fields are strdup'd by the C bridge and must be freed with the module's <lib>_nitro_free.

Constructors

WebNitroErrorSlot.alloc(NitroWasmModule module)

Allocates a zeroed slot in module's heap.

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

module → NitroWasmModule

final

ptr → int

Heap offset of the struct — pass this where the C signature takes NitroError*.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

free() → void

Frees the slot itself (NOT the string fields — throwIfError handles those when an error is present).

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

throwIfError() → void

Checks the slot after a bridge call. If an error is present: copies the string fields into Dart, frees them with the module's nitro_free, resets the slot for the next call, and throws a HybridException.

throwIfErrorAndFree() → void

Variant for per-call slots (@nitroNativeAsync): checks, then frees the slot itself whether or not an error was present.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

sizeInBytes → const int