Merge pull request #58 from algorandfoundation/feat-arc4-types-in-tests

refactor: support including arc4 types in tests in testing package

packages/algo-ts/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@algorandfoundation/algorand-typescript",
-  "version": "0.0.1-alpha.21",
+  "version": "0.0.1-alpha.22",
   "description": "This package contains definitions for the types which comprise Algorand TypeScript which can be compiled to run on the Algorand Virtual Machine using the Puya compiler.",
   "private": false,
   "main": "index.js",

packages/algo-ts/src/arc4/index.ts

@@ -1,7 +1,8 @@
 import { BaseContract } from '../base-contract'
 import { ctxMgr } from '../execution-context'
-import { NoImplementation } from '../impl/errors'
-import { bytes, Uint64 } from '../primitives'
+import { encodingUtil } from '../internal'
+import { sha512_256 } from '../op'
+import { Bytes, bytes, Uint64 } from '../primitives'
 import { DeliberateAny } from '../typescript-helpers'
 
 export * from './encoded-types'
@@ -91,5 +92,5 @@ export function baremethod<TContract extends Contract>(config?: BareMethodConfig
  * @returns The ARC4 method selector. Eg. `02BECE11`
  */
 export function methodSelector(methodSignature: string): bytes {
-  throw new NoImplementation()
+  return sha512_256(Bytes(encodingUtil.utf8ToUint8Array(methodSignature))).slice(0, 4)
 }

packages/algo-ts/src/base-contract.ts

@@ -71,6 +71,16 @@ type ContractOptions = {
  * The contract decorator can be used to specify additional configuration options for a smart contract
  * @param options An object containing the configuration options
  */
+export const ContractOptionsSymbol = Symbol('ContractOptions')
 export function contract(options: ContractOptions) {
-  return <T extends ConstructorFor<Contract>>(contract: T) => contract
+  return <T extends ConstructorFor<Contract>>(contract: T, ctx: ClassDecoratorContext) => {
+    ctx.addInitializer(function () {
+      Object.defineProperty(this, ContractOptionsSymbol, {
+        value: options,
+        writable: false,
+        enumerable: false,
+      })
+    })
+    return contract
+  }
 }

packages/algo-ts/src/impl/primitives.ts

@@ -30,20 +30,6 @@ export function toExternalValue(val: uint64 | biguint | bytes | string) {
   if (instance instanceof BigUintCls) return instance.asBigInt()
   if (typeof val === 'string') return val
 }
-export const toBytes = (val: unknown): bytes => {
-  if (val instanceof AlgoTsPrimitiveCls) return val.toBytes().asAlgoTs()
-
-  switch (typeof val) {
-    case 'string':
-      return BytesCls.fromCompat(val).asAlgoTs()
-    case 'bigint':
-      return BigUintCls.fromCompat(val).toBytes().asAlgoTs()
-    case 'number':
-      return Uint64Cls.fromCompat(val).toBytes().asAlgoTs()
-    default:
-      internalError(`Unsupported arg type ${nameOfType(val)}`)
-  }
-}
 
 /**
  * Convert a StubUint64Compat value into a 'number' if possible.

packages/algo-ts/src/internal.ts

@@ -1,3 +1,4 @@
+export { ContractOptionsSymbol } from './base-contract'
 export { ExecutionContext, ctxMgr } from './execution-context'
 export * as encodingUtil from './impl/encoding-util'
 export * as errors from './impl/errors'