Add preInstructions

ts/src/program/context.ts

@@ -28,14 +28,21 @@ export type Context<A extends Accounts = Accounts> = {
   signers?: Array<Signer>;
 
   /**
+   * @deprecated use preInstructions instead
    * Instructions to run *before* a given method. Often this is used, for
    * example to create accounts prior to executing a method.
    */
-  instructions?: TransactionInstruction[];
+   instructions?: TransactionInstruction[];
+
+  /**
+   * Instructions to run *before* a given method. Often this is used, for
+   * example to create accounts prior to executing a method.
+   */
+  preInstructions?: TransactionInstruction[];
 
   /**
    * Instructions to run *after* a given method. Often this is used, for
-   * example to close accounts after to executing a method.
+   * example to close accounts after executing a method.
    */
   postInstructions?: TransactionInstruction[];
 

ts/src/program/namespace/transaction.ts

@@ -16,6 +16,10 @@ export default class TransactionFactory {
     const txFn: TransactionFn<IDL, I> = (...args): Transaction => {
       const [, ctx] = splitArgsAndCtx(idlIx, [...args]);
       const tx = new Transaction();
+      if(ctx.preInstructions && ctx.preInstructions.length && ctx.instructions && ctx.instructions.length){
+        throw new Error("instructions is deprecated, use preInstructions")
+      }
+      ctx.preInstructions?.forEach((ix) => tx.add(ix));
       ctx.instructions?.forEach((ix) => tx.add(ix));
       tx.add(ixFn(...args));
       ctx.postInstructions?.forEach((ix) => tx.add(ix));