add leb128

Author: mrtnetwork

lib/layout/core/types/leb128.dart

@@ -5,12 +5,12 @@ import 'package:blockchain_utils/layout/core/core.dart';
 ///
 /// LEB128 is a variable-length encoding method that is efficient for representing small numbers compactly.
 /// This layout is used in serialization frameworks like BCS (Binary Canonical Serialization).
-class LEB128DIntLayout extends Layout<int> {
+class LEB128IntLayout extends Layout<int> {
   /// Constructor for [LEB128IntLayout].
   ///
   /// [layout] is the underlying integer layout used for validation.
   /// [property] is an optional key associated with this layout for structured data handling.
-  LEB128DIntLayout(this.layout, {String? property})
+  LEB128IntLayout(this.layout, {String? property})
       : super(-1, property: property);
 
   /// The integer layout used to validate values before encoding.
@@ -97,7 +97,7 @@ class LEB128DIntLayout extends Layout<int> {
   ///
   /// Useful when reusing the layout structure with different property associations.
   @override
-  LEB128DIntLayout clone({String? newProperty}) {
-    return LEB128DIntLayout(layout, property: newProperty);
+  LEB128IntLayout clone({String? newProperty}) {
+    return LEB128IntLayout(layout, property: newProperty);
   }
 }

lib/layout/core/types/leb128_offset.dart

@@ -14,7 +14,7 @@ class LEB128U32OffsetLayout extends ExternalOffsetLayout {
   LEB128U32OffsetLayout({super.property});
 
   /// Internal layout used for encoding and decoding LEB128 integers.
-  final LEB128DIntLayout layout = LEB128DIntLayout(LayoutConst.u32());
+  final LEB128IntLayout layout = LEB128IntLayout(LayoutConst.u32());
 
   /// Indicates that this layout represents a count (such as the length of a vector).
   @override
@@ -43,7 +43,7 @@ class LEB128U32OffsetLayout extends ExternalOffsetLayout {
   /// Returns the number of bytes written after encoding.
   @override
   int encode(int source, LayoutByteWriter writer, {int offset = 0}) {
-    final encodeLength = LEB128DIntLayout.writeVarint(source);
+    final encodeLength = LEB128IntLayout.writeVarint(source);
     writer.setAll(offset, encodeLength);
     return encodeLength.length;
   }