ScTransactionBuilder class
Assembles an SC transaction through the signing-digest pipeline.
Two factories are available:
- ScTransactionBuilder.create: background-isolate WASM bridge
(ScWasmIsolateBridge), the default; loads the bundled
sc.wasm, no native library needed. - ScTransactionBuilder.createWithFfi: native Go FFI bridge (ScGoFfiBridge); much faster, but the caller passes the path to a native library they built for their platform.
final builder = await ScTransactionBuilder.create();
final txData = await builder.build(unsignedTx);
Constructors
- ScTransactionBuilder({required ScWasmBridge wasmBridge})
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- wasmBridge → ScWasmBridge
-
final
Methods
-
build(
ScUnsignedTransaction unsignedTx) → Future< ScTxData> -
dispose(
) → void - Releases resources owned by a bridge created by this builder.
-
extractV2TransactionSemantics(
Map< String, dynamic> unsignedTransaction, {Iterable<String> changeAddresses = const []}) → Future<ScV2TransactionSemantics> - Extracts canonical signing semantics from the complete unsigned V2 transaction map and computes its InputSigHash through Sia core.
-
inspectV2TransactionSemantics(
Uint8List semanticBytes, {Iterable< String> changeAddresses = const []}) → Future<ScV2TransactionSemantics> - Strictly parses canonical semantic bytes and recomputes InputSigHash through the same Sia core implementation used by the hot side.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
create(
{ScWasmLoader? wasmLoader}) → Future< ScTransactionBuilder> -
Creates a builder backed by ScWasmIsolateBridge, loading
sc.wasmfrom the package bundle. WASM parsing and transaction processing run outside the caller's isolate. No native library is required. -
createWithFfi(
DynamicLibrary library) → ScTransactionBuilder -
Creates a builder backed by the native Go FFI bridge (ScGoFfiBridge),
which is much faster. The caller supplies an already-loaded
library(e.g.DynamicLibrary.open(path)) built for the current platform — seelib/src/forked_lib/sia-wasi/build.sh; this package does not bundle one.