BlobByteSource class final
A ByteSource over a browser web.Blob (or File, which extends Blob).
Reads use Blob.slice(...).arrayBuffer(), which browsers execute
independently per call, true pread semantics, so a reader can fetch
several entries' bytes concurrently. Works under both dart2js and
dart2wasm.
- Implemented types
Constructors
- BlobByteSource(Blob blob, {String? name})
-
Creates a source over
blob. A browserFile(from an<input type=file>or drag-and-drop) is a Blob and works directly; pass itsnameasnameif entry-name derivation matters.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- length → int
-
Total length of the source in bytes.
final
- name → String?
-
Optional display name for the source (a file path, a browser File
name), used by formats that derive entry names from the container
(e.g. a bare
.gzwith no FNAME field). Null when the source has no meaningful name.final - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
close(
) → Future< void> -
Releases any resources held by the source. Idempotent.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
read(
int offset, int length) → Future< Uint8List> -
Reads exactly
lengthbytes starting at byteoffset.override -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited