100243353 Move-Exam

student_no.txt

@@ -1 +1,2 @@
 # Please enter your 9-digit student number below.
+100243353

task1/sources/main.move

@@ -2,21 +2,21 @@
 // Create a struct called Wallet with a single field called balance of type u64.
 module 0x42::Task1 {
 
-    // TODO
     // Define a struct called Wallet with a single field called balance of type u64.
     struct Wallet has drop {
-        // ...
+        balance: u64
     }
 
-    // TODO
     // Define a function called myWallet that returns a Wallet with a balance of 1000.
     fun myWallet(): Wallet {
-        // ...
+        Wallet {
+            balance: 1000
+        }
     }
 
     #[test]
     fun test_wallet() {
         let wallet = myWallet();
         assert!(wallet.balance == 1000, 0);
     }
-}
+}

task2/sources/main.move

@@ -2,16 +2,18 @@
 module 0x42::Task2{
     use std::signer;
 
-    // TODO
     // Define a struct Foo with two fields: u: u64, b: bool with ability to drop
-    struct Foo {
-       // ...
+    struct Foo has drop {
+       u: u64,
+       b: bool
     }
 
-    // TODO
     // Define a function gen_Fool that takes two arguments: u: u64, b: bool and returns a Foo
     fun gen_Fool(u:u64, b:bool): Foo {
-        // ...
+        return Foo {
+            u,
+            b
+        }
     }
 
     #[test]
@@ -30,16 +32,18 @@ module 0x42::Task2{
         assert!(f.b == true,1);
     }
 
-    // TODO
     // Define a struct Soo with two fields: x: u64, y: u64 with ability to copy
-    struct Soo {
-        // ...
+    struct Soo has copy {
+        x: u64,
+        y: u64
     }
 
-    // TODO
     // Define a function gen_Soo that takes two arguments: x: u64, y: u64 and returns a Soo
     fun gen_Soo(x:u64, y:u64): Soo {
-        // ...
+        return Soo {
+            x,
+            y
+        }
     }
 
     #[test]
@@ -54,23 +58,21 @@ module 0x42::Task2{
         let Soo { x: _, y: _ } = c2;
     }
 
-    // TODO
     // Define a struct Koo with a field: s: Moo with ability
     struct Koo {
         s: Moo
     }
 
-    // TODO
     // Define a struct Moo with a field: x: u64 with ability
-    struct Moo {
+    struct Moo has store {
         x: u64
     }
 
-
-    // TODO
     // Define a function gen_Moo that takes an argument: x: u64 and returns a Moo
     fun gen_Moo(x:u64): Moo {
-        // ...
+        return Moo {
+            x
+        }
     }
 
     #[test]
@@ -80,4 +82,4 @@ module 0x42::Task2{
         assert!(k.s.x == 42,0);
         let Koo { s: Moo { x: _ } } = k;
     }
-}
+}

task3/sources/m1.move

@@ -1,22 +1,19 @@
-// Tasl3 - module 
+// Tasl3 - module
 
 // Observe the function permissions called in M1, M2, and M3.
 // modify the visibility of the functions in M1, and set the M1 module visibility.
 module 0x42::M1{
 
-    // TODO
     // Define a module friend M2
-    friend       ;
-
-    // TODO
+    friend 0x42::M2;
+
     // Define a function num that returns 66 with choose public or friend visibility
-    fun num():u64 {
+    public fun num():u64 {
         66
     }
 
-    // TODO
     // Define a function num2 that returns 88 with choose public or friend visibility
-    fun num2():u64 {
+    public(friend) fun num2():u64 {
         88
     }
-}
+}

task4/sources/main.move

@@ -7,24 +7,20 @@ module 0x42::Task4 {
 
     use std::signer;
 
-    const NAME:vector<u8> = b"myObject"; 
+    const NAME:vector<u8> = b"myObject";
 
-    // TODO
     // 1. create a deleteable object
     public fun createDeleteableObject(caller: &signer):ConstructorRef {
-        // ...
+        object::create_object(signer::address_of(caller))
     }
 
-    // TODO
-    // 2. create a named object
     public fun createNamedObject(caller: &signer):ConstructorRef {
-        // ...
+        object::create_named_object(caller, NAME)
     }
 
-    // TODO
     // 3. create a sticky object
     public fun createStickyObject(caller: &signer):ConstructorRef {
-        // ...
+        object::create_sticky_object(signer::address_of(caller))
     }
 
     #[test(caller = @0x88)]
@@ -49,4 +45,4 @@ module 0x42::Task4 {
         assert!( object::address_from_constructor_ref(&obj2) == @0xfab16b00983f01e5c2b7682472a4f4c3e5929fbba987958570b6290c02817df2, 1);
 
     }
-}
+}