paritytech · Stefie · May 13, 2020 · May 12, 2020 · May 12, 2020 · May 12, 2020
diff --git a/build.sh b/build.sh
@@ -18,7 +18,7 @@ else echo "Please install and run Docker or Podman if you want to compile the So
 fi
 
 if [[ -d lib/ink ]]; then
-	git --git-dir lib/ink/.git pull
+	git --git-dir lib/ink/.git pull origin master
 else
 	git clone --depth=1 --branch=master https://github.com/paritytech/ink.git lib/ink
 fi

diff --git a/contracts/assemblyscript/erc20/assembly/index.ts b/contracts/assemblyscript/erc20/assembly/index.ts
@@ -43,12 +43,12 @@ function handle(input: Uint8Array): Uint8Array {
       return toBytes(totalSupplyValue);
     case Action.BalanceOf: { // first byte: 0x01
       // Returns the account balance of the account with the address 'owner'.
-      const owner = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart), 1, 32);
+      const owner = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart as i32), 1, 32);
       return getBalanceOrZero(owner);
     }
     case Action.Transfer: { // first byte: 0x02
       // Transfers 'value' amount of tokens to address 'to'
-      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart), 1, 48);
+      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart as i32), 1, 48);
       const to = parameters.subarray(0,32);
       const value = u128.from(parameters.subarray(32,48));
       const CALLER = getCaller();
@@ -63,7 +63,7 @@ function handle(input: Uint8Array): Uint8Array {
     }
     case Action.TransferFrom: { // first byte: 0x03
       // Transfers 'value' amount of tokens from address 'owner' to address 'to'
-      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart), 1, 80);
+      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart as i32), 1, 80);
       const owner: Uint8Array = parameters.subarray(0,32);
       const to: Uint8Array = parameters.subarray(32, 64);
       const value: u128 = u128.from(parameters.subarray(64,80));
@@ -84,7 +84,7 @@ function handle(input: Uint8Array): Uint8Array {
     }
     case Action.Approve: { // first byte: 0x04
       // Allows 'spender' to withdraw from a callers account multiple times, up to the 'value' amount
-      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart), 1, 48);
+      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart as i32), 1, 48);
       const spender: Uint8Array = parameters.subarray(0,32);
       const amount: Uint8Array = parameters.subarray(32,48);
       const CALLER = getCaller();
@@ -96,7 +96,7 @@ function handle(input: Uint8Array): Uint8Array {
     }
     case Action.Allowance: { // first byte: 0x05
       // Returns the amount which 'spender' is still allowed to withdraw from 'owner'
-      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart), 1, 64);
+      const parameters = Uint8Array.wrap(changetype<ArrayBuffer>(input.dataStart as i32), 1, 64);
       const owner: Uint8Array = parameters.subarray(0,32);
       const spender: Uint8Array = parameters.subarray(32,64);
 

diff --git a/contracts/assemblyscript/erc20/assembly/lib-contract.ts b/contracts/assemblyscript/erc20/assembly/lib-contract.ts
@@ -15,7 +15,7 @@ export function toBytes<T>(num: T, le: boolean = true): Uint8Array {
   // accept only integers and booleans
   if (isInteger<T>()) {
     const arr = new Uint8Array(sizeof<T>());
-    store<T>(arr.dataStart, le ? num : bswap(num));
+    store<T>(arr.dataStart as i32, le ? num : bswap(num));
     return arr;
   }
   assert(false);

diff --git a/contracts/assemblyscript/erc20/assembly/lib.ts b/contracts/assemblyscript/erc20/assembly/lib.ts
@@ -39,22 +39,22 @@ export function getValueTransferred(): Uint8Array {
 export function printLine(value: string): void {
   const string = String.UTF8.encode(value);
   const stringArray = Uint8Array.wrap(string);
-  ext_println(stringArray.dataStart, string.byteLength);
+  ext_println(stringArray.dataStart as i32, string.byteLength);
 }
 
 
 export function setStorage(key: Uint8Array, value: Uint8Array | null): void {
   if(key.length === 32) {
-    const pointer = value ? value!.dataStart : 0;
-    const length = value ? value.length : 0;
+    const pointer: i32 = value ? value.dataStart as i32 : 0;
+    const length: i32 = value ? value.length : 0;
 
-    ext_set_storage(key.dataStart, pointer, length);
+    ext_set_storage(key.dataStart as i32, pointer, length);
   }
 }
 
 // check for length 32 bytes
 export function getStorage(key: Uint8Array): Uint8Array {
-  const result = ext_get_storage(key.dataStart);
+  const result = ext_get_storage(key.dataStart as i32);
   let value = new Uint8Array(0);
 
   // if value is found
@@ -66,7 +66,7 @@ export function getStorage(key: Uint8Array): Uint8Array {
       // create empty array (Vec in Rust)
       value = new Uint8Array(size);
       // call
-      ext_scratch_read(value.dataStart, 0, size);
+      ext_scratch_read(value.dataStart as i32, 0, size);
     }
   }
   return value;
@@ -80,22 +80,22 @@ export function getScratchBuffer(): Uint8Array {
   if (size > 0) {
     value = new Uint8Array(size);
     // copy data from scratch buffer
-    ext_scratch_read(value.dataStart, 0, size);
+    ext_scratch_read(value.dataStart as i32, 0, size);
   }
   return value;
 }
 
 export function setScratchBuffer(data: Uint8Array): void {
-  ext_scratch_write(data.dataStart, data.length);
+  ext_scratch_write(data.dataStart as i32, data.length);
 }
 
 export function setRentAllowance(value: u128): void {
   const valueBuffer = value.toUint8Array();
-  ext_set_rent_allowance(valueBuffer.dataStart, valueBuffer.length);
+  ext_set_rent_allowance(valueBuffer.dataStart as i32, valueBuffer.length);
 }
 
 export function hashSha256(value: Uint8Array): Uint8Array {
   const sha256 = new Uint8Array(32);
-  ext_hash_sha2_256(value.dataStart, value.length, sha256.dataStart)
+  ext_hash_sha2_256(value.dataStart as i32, value.length, sha256.dataStart as i32)
   return sha256;
 }
diff --git a/contracts/assemblyscript/erc20/build.sh b/contracts/assemblyscript/erc20/build.sh
@@ -4,8 +4,8 @@ set -e
 
 PROJNAME=erc20
 
-cat build/$PROJNAME.wat | sed "s/(import \"env\" \"memory\" (memory \$0 1))/(import \"env\" \"memory\" (memory \$0 2 16))/" > build/$PROJNAME-fixed.wat
+cat build/$PROJNAME.wat | sed "s/(import \"env\" \"memory\" (memory \$0 1))/(import \"env\" \"memory\" (memory \$0 16 16))/" > build/$PROJNAME-fixed.wat
 
-wat2wasm -o build/$PROJNAME-fixed.wasm build/$PROJNAME-fixed.wat
+wat2wasm build/$PROJNAME-fixed.wat -o build/$PROJNAME-fixed.wasm
 
 wasm-prune --exports call,deploy build/$PROJNAME-fixed.wasm build/$PROJNAME-pruned.wasm
diff --git a/contracts/assemblyscript/erc20/package.json b/contracts/assemblyscript/erc20/package.json
@@ -7,13 +7,13 @@
   "types": "build/index.d.ts",
   "license": "Apache-2.0",
   "scripts": {
-    "build:optimized": "asc assembly/index.ts -b build/erc20.wasm -t build/erc20.wat --importMemory --noAssert --use abort= --validate --optimize",
+    "build:optimized": "asc assembly/index.ts -b build/erc20.wasm -t build/erc20.wat --runtime half --importMemory --noAssert --use abort= --optimize",
     "build:tsd": "asc assembly/index.ts -d build/index.d.ts",
     "build": "rm -rf build && mkdir build && yarn build:optimized && yarn build:tsd"
   },
   "dependencies": {
-    "as-bignum": "^0.1.5",
-    "assemblyscript": "^0.9.2"
+    "as-bignum": "^0.1.7",
+    "assemblyscript": "^0.9.4-nightly.20200510"
   },
   "devDependencies": {
     "@types/node": "^12.12.17",

diff --git a/contracts/assemblyscript/erc20/yarn.lock b/contracts/assemblyscript/erc20/yarn.lock
@@ -3,34 +3,34 @@
 
 
 "@types/node@^12.12.17":
-  version "12.12.24"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.24.tgz#d4606afd8cf6c609036b854360367d1b2c78931f"
-  integrity sha512-1Ciqv9pqwVtW6FsIUKSZNB82E5Cu1I2bBTj1xuIHXLe/1zYLl3956Nbhg2MzSYHVfl9/rmanjbQIb7LibfCnug==
+  version "12.12.38"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.38.tgz#58841a382f231ad005dbb935c36d44aa1118a26b"
+  integrity sha512-75eLjX0pFuTcUXnnWmALMzzkYorjND0ezNEycaKesbUBg9eGZp4GHPuDmkRc4mQQvIpe29zrzATNRA6hkYqwmA==
 
-as-bignum@^0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/as-bignum/-/as-bignum-0.1.5.tgz#e97a46a175644c277ecfe17d3850a63b6e55ac44"
-  integrity sha512-lv0ZOxtBReuCq6wpXUtjm6Mrj7CQn+qdSgF/O7yh553aH4FRrRaUXp/ywfSNMoiPK7AJ47f9gcKs0Toi5H84iA==
+as-bignum@^0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/as-bignum/-/as-bignum-0.1.7.tgz#e580d25089d392fb67d321d44b8fed36b7c475dc"
+  integrity sha512-HqCW9HSKTVLxAebu8ctg52o2+F/xN07GofXzjALlABYxayi241zxrKDU7Mmu/ArKQkAuftSaP+nx2HIzvaC3TA==
 
-assemblyscript@^0.9.2:
-  version "0.9.2"
-  resolved "https://registry.yarnpkg.com/assemblyscript/-/assemblyscript-0.9.2.tgz#dd254370b8436bd997d14bb7e867535180907995"
-  integrity sha512-eqPbxS323ivXdUclGJjvihxEEMBaXcNYHLb17j3j3UaYvkqVPNSrNuJ/H1r7G/UwmQnFQ8NDrQ9BncOFCGmahg==
+assemblyscript@^0.9.4-nightly.20200510:
+  version "0.9.4-nightly.20200510"
+  resolved "https://registry.yarnpkg.com/assemblyscript/-/assemblyscript-0.9.4-nightly.20200510.tgz#09b4b22780151609b8fe2f8fae8467290ba3e4fa"
+  integrity sha512-mRJvyS79exDNxuTrwgFG8pgRbxMUwh7zK9NYDptJU5OwE7VbaSDOpJ/WpcZ4oecvHMJm0Zp78m3TG8AYhr0GIQ==
   dependencies:
-    binaryen "90.0.0-nightly.20200214"
+    binaryen "92.0.0-nightly.20200426"
     long "^4.0.0"
 
-binaryen@90.0.0-nightly.20200214:
-  version "90.0.0-nightly.20200214"
-  resolved "https://registry.yarnpkg.com/binaryen/-/binaryen-90.0.0-nightly.20200214.tgz#c2f46314dda59ef359c5fa24c0b6180b0ba2f00b"
-  integrity sha512-ZHajaPd2aP6kDrM9q77afnA402Ufsuw9yLUxtAfgmIglP1JMB2XSRmaXc5pgCELaX53PWJIdcH07LL8uNfTBRw==
+binaryen@92.0.0-nightly.20200426:
+  version "92.0.0-nightly.20200426"
+  resolved "https://registry.yarnpkg.com/binaryen/-/binaryen-92.0.0-nightly.20200426.tgz#06001c7284e261dff808753a631b06eef87636e0"
+  integrity sha512-e9aKrfV8MBFjLBITaY89/ulGhZ0AQ9RDb0B4ZGg7Qe3fM445JNiQh6Dc2k0+wTAU95oUAY0uGnNEIGUtEnirag==
 
 long@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
   integrity sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA==
 
 typescript@^3.2.2:
-  version "3.7.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.4.tgz#1743a5ec5fef6a1fa9f3e4708e33c81c73876c19"
-  integrity sha512-A25xv5XCtarLwXpcDNZzCGvW2D1S3/bACratYBx2sax8PefsFhlYmkQicKHvpYflFS8if4zne5zT5kpJ7pzuvw==
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
+  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
diff --git a/contracts/assemblyscript/flipper/assembly/lib.ts b/contracts/assemblyscript/flipper/assembly/lib.ts
@@ -20,22 +20,22 @@ export function toBytes<T>(num: T, le: boolean = true): Uint8Array {
   // accept only integers and booleans
   if (isInteger<T>()) {
     const arr = new Uint8Array(sizeof<T>());
-    store<T>(arr.dataStart, le ? num : bswap(num));
+    store<T>(arr.dataStart as i32, le ? num : bswap(num));
     return arr;
   }
   assert(false);
 }
 
 export function setStorage(key: Uint8Array, value: Uint8Array | null): void {
-  const pointer = value ? value!.dataStart : 0;
-  const length = value ? value.length : 0;
+  const pointer: i32 = value ? value.dataStart as i32 : 0;
+  const length: i32 = value ? value.length : 0;
 
-  ext_set_storage(key.dataStart, pointer, length);
+  ext_set_storage(key.dataStart as i32, pointer, length);
 }
 
 // check for length 32 bytes
 export function getStorage(key: Uint8Array): Uint8Array {
-  const result = ext_get_storage(key.dataStart);
+  const result = ext_get_storage(key.dataStart as i32);
   let value = new Uint8Array(0);
 
   // if value is found
@@ -47,7 +47,7 @@ export function getStorage(key: Uint8Array): Uint8Array {
       // create empty array (Vec in Rust)
       value = new Uint8Array(size);
       // call
-      ext_scratch_read(value.dataStart, 0, size);
+      ext_scratch_read(value.dataStart as i32, 0, size);
     }
   }
   return value;
@@ -61,16 +61,16 @@ export function getScratchBuffer(): Uint8Array {
   if (size > 0) {
     value = new Uint8Array(size);
     // copy data from scratch buffer
-    ext_scratch_read(value.dataStart, 0, size);
+    ext_scratch_read(value.dataStart as i32, 0, size);
   }
   return value;
 }
 
 export function setScratchBuffer(data: Uint8Array): void {
-  ext_scratch_write(data.dataStart, data.length);
+  ext_scratch_write(data.dataStart as i32, data.length);
 }
 
 export function setRentAllowance(value: u128): void {
   const valueBuffer = value.toUint8Array();
-  ext_set_rent_allowance(valueBuffer.dataStart, valueBuffer.length);
+  ext_set_rent_allowance(valueBuffer.dataStart as i32, valueBuffer.length);
 }
diff --git a/contracts/assemblyscript/flipper/build.sh b/contracts/assemblyscript/flipper/build.sh
@@ -4,8 +4,10 @@ set -e
 
 PROJNAME=flipper
 
-cat build/$PROJNAME.wat | sed "s/(import \"env\" \"memory\" (memory \$0 1))/(import \"env\" \"memory\" (memory \$0 2 16))/" > build/$PROJNAME-fixed.wat
+cat build/$PROJNAME.wat | sed "s/(import \"env\" \"memory\" (memory \$0 1))/(import \"env\" \"memory\" (memory \$0 16 16))/" > build/$PROJNAME-fixed.wat
 
-wat2wasm -o build/$PROJNAME-fixed.wasm build/$PROJNAME-fixed.wat
+wat2wasm build/$PROJNAME-fixed.wat -o build/$PROJNAME-fixed.wasm
 
-wasm-prune --exports call,deploy build/$PROJNAME-fixed.wasm build/$PROJNAME-pruned.wasm
+wasm-prune --exports call,deploy build/$PROJNAME-fixed.wasm build/$PROJNAME-pruned.wasm
+
+wasm2wat build/$PROJNAME-pruned.wasm -o build/$PROJNAME-pruned.wat
diff --git a/contracts/assemblyscript/flipper/package.json b/contracts/assemblyscript/flipper/package.json
@@ -7,16 +7,16 @@
   "types": "build/index.d.ts",
   "license": "Apache-2.0",
   "scripts": {
-    "build:optimized": "asc assembly/index.ts -b build/flipper.wasm -t build/flipper.wat --importMemory --noAssert --use abort= --validate --optimize",
+    "build:optimized": "asc assembly/index.ts -b build/flipper.wasm -t build/flipper.wat --runtime half --importMemory --noAssert --use abort= --optimize",
     "build:tsd": "asc assembly/index.ts -d build/index.d.ts",
     "build": "yarn build:optimized && yarn build:tsd"
   },
   "dependencies": {
-    "as-bignum": "^0.1.5",
-    "assemblyscript": "^0.9.2"
+    "as-bignum": "^0.1.7",
+    "assemblyscript": "^0.9.4-nightly.20200510"
   },
   "devDependencies": {
     "@types/node": "^10.17.2",
     "typescript": "^3.2.2"
   }
-}
+}
diff --git a/contracts/assemblyscript/flipper/yarn.lock b/contracts/assemblyscript/flipper/yarn.lock
@@ -3,34 +3,34 @@
 
 
 "@types/node@^10.17.2":
-  version "10.17.5"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.5.tgz#c1920150f7b90708a7d0f3add12a06bc9123c055"
-  integrity sha512-RElZIr/7JreF1eY6oD5RF3kpmdcreuQPjg5ri4oQ5g9sq7YWU8HkfB3eH8GwAwxf5OaCh0VPi7r4N/yoTGelrA==
+  version "10.17.21"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.21.tgz#c00e9603399126925806bed2d9a1e37da506965e"
+  integrity sha512-PQKsydPxYxF1DsAFWmunaxd3sOi3iMt6Zmx/tgaagHYmwJ/9cRH91hQkeJZaUGWbvn0K5HlSVEXkn5U/llWPpQ==
 
-as-bignum@^0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/as-bignum/-/as-bignum-0.1.5.tgz#e97a46a175644c277ecfe17d3850a63b6e55ac44"
-  integrity sha512-lv0ZOxtBReuCq6wpXUtjm6Mrj7CQn+qdSgF/O7yh553aH4FRrRaUXp/ywfSNMoiPK7AJ47f9gcKs0Toi5H84iA==
+as-bignum@^0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/as-bignum/-/as-bignum-0.1.7.tgz#e580d25089d392fb67d321d44b8fed36b7c475dc"
+  integrity sha512-HqCW9HSKTVLxAebu8ctg52o2+F/xN07GofXzjALlABYxayi241zxrKDU7Mmu/ArKQkAuftSaP+nx2HIzvaC3TA==
 
-assemblyscript@^0.9.2:
-  version "0.9.2"
-  resolved "https://registry.yarnpkg.com/assemblyscript/-/assemblyscript-0.9.2.tgz#dd254370b8436bd997d14bb7e867535180907995"
-  integrity sha512-eqPbxS323ivXdUclGJjvihxEEMBaXcNYHLb17j3j3UaYvkqVPNSrNuJ/H1r7G/UwmQnFQ8NDrQ9BncOFCGmahg==
+assemblyscript@^0.9.4-nightly.20200510:
+  version "0.9.4-nightly.20200510"
+  resolved "https://registry.yarnpkg.com/assemblyscript/-/assemblyscript-0.9.4-nightly.20200510.tgz#09b4b22780151609b8fe2f8fae8467290ba3e4fa"
+  integrity sha512-mRJvyS79exDNxuTrwgFG8pgRbxMUwh7zK9NYDptJU5OwE7VbaSDOpJ/WpcZ4oecvHMJm0Zp78m3TG8AYhr0GIQ==
   dependencies:
-    binaryen "90.0.0-nightly.20200214"
+    binaryen "92.0.0-nightly.20200426"
     long "^4.0.0"
 
-binaryen@90.0.0-nightly.20200214:
-  version "90.0.0-nightly.20200214"
-  resolved "https://registry.yarnpkg.com/binaryen/-/binaryen-90.0.0-nightly.20200214.tgz#c2f46314dda59ef359c5fa24c0b6180b0ba2f00b"
-  integrity sha512-ZHajaPd2aP6kDrM9q77afnA402Ufsuw9yLUxtAfgmIglP1JMB2XSRmaXc5pgCELaX53PWJIdcH07LL8uNfTBRw==
+binaryen@92.0.0-nightly.20200426:
+  version "92.0.0-nightly.20200426"
+  resolved "https://registry.yarnpkg.com/binaryen/-/binaryen-92.0.0-nightly.20200426.tgz#06001c7284e261dff808753a631b06eef87636e0"
+  integrity sha512-e9aKrfV8MBFjLBITaY89/ulGhZ0AQ9RDb0B4ZGg7Qe3fM445JNiQh6Dc2k0+wTAU95oUAY0uGnNEIGUtEnirag==
 
 long@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
   integrity sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA==
 
 typescript@^3.2.2:
-  version "3.7.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.2.tgz#27e489b95fa5909445e9fef5ee48d81697ad18fb"
-  integrity sha512-ml7V7JfiN2Xwvcer+XAf2csGO1bPBdRbFCkYBczNZggrBZ9c7G3riSUeJmqEU5uOtXNPMhE3n+R4FA/3YOAWOQ==
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
+  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
diff --git a/contracts/assemblyscript/incrementer/assembly/index.ts b/contracts/assemblyscript/incrementer/assembly/index.ts
@@ -9,11 +9,7 @@ import {
   toBytes
 } from "./lib";
 
-const COUNTER_KEY = (new Uint8Array(32)).fill(1); // [1,1,1, ... 1]
-
-// Inc(648) => 0088020000
-// decimal: [0,136,2,0,0]
-// Hex: 0x00000288
+const COUNTER_KEY = (new Uint8Array(32)).fill(1);
 
 enum Action {
   Inc,
@@ -36,7 +32,7 @@ function handle(input: Uint8Array): Uint8Array {
   switch (input[0]) {
     case Action.Inc:
       // read 4 bytes (u32) from storageBuffer with offset 1
-      const by = load<u32>(input.dataStart, 1);
+      const by = load<u32>(input.dataStart as i32, 1);
       const newCounter = toBytes(counterValue + by);
       setStorage(COUNTER_KEY, newCounter);
       break;