Add better logging during program execution

Author: mvines

associated-token-account/program/src/processor.rs

@@ -54,6 +54,10 @@ pub fn process_instruction(
         .saturating_sub(associated_token_account_info.lamports());
 
     if required_lamports > 0 {
+        info!(&format!(
+            "Transfer {} lamports to the associated token account",
+            required_lamports
+        ));
         invoke(
             &system_instruction::transfer(
                 &funder_info.key,
@@ -68,7 +72,7 @@ pub fn process_instruction(
         )?;
     }
 
-    // Allocate space for the associated token account
+    info!("Allocate space for the associated token account");
     invoke_signed(
         &system_instruction::allocate(
             associated_token_account_info.key,
@@ -81,7 +85,7 @@ pub fn process_instruction(
         &[&associated_token_account_signer_seeds],
     )?;
 
-    // Assign the associated token account to the SPL Token program
+    info!("Assign the associated token account to the SPL Token program");
     invoke_signed(
         &system_instruction::assign(associated_token_account_info.key, &spl_token::id()),
         &[
@@ -91,7 +95,7 @@ pub fn process_instruction(
         &[&associated_token_account_signer_seeds],
     )?;
 
-    // Initialize the associated token account
+    info!("Initialize the associated token account");
     invoke(
         &spl_token::instruction::initialize_account(
             &spl_token::id(),