Homework 4

javali_tests/HW4_nop90/method invocation/OkCallByValue.javali

@@ -0,0 +1,22 @@
+// test that call-by-value is used
+
+
+class Main {
+	void main() {
+		int x;
+		A a;
+		a = new A();
+		a.a = 50;
+		aux(a.a);
+		x = a.a;
+		write(x);
+	}
+	
+	void aux (int arg){
+		arg = arg + 1;
+	}
+}
+
+class A {
+	int a;
+}

javali_tests/HW4_nop90/method invocation/OkCallByValue2.javali

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+// test that call-by-value is used
+
+
+class Main {
+	void main() {
+		int[] y;
+		int x;
+		y = new int[5];
+		y[2] = 50;
+		aux(y[2]);
+		x = y[2];
+		write(x);
+	}
+	
+	void aux (int arg){
+		arg = arg + 1;
+	}
+}

javali_tests/HW4_nop90/method invocation/OkCallByValue3.javali

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+// test that call-by-value is used
+
+
+class Main {
+	void main() {
+		int[] y;
+		int x;
+		y = new int[5];
+		y[2] = 50;
+		aux(y);
+		x = y[2];
+		write(x);
+	}
+	
+	void aux (int[] arg){
+		arg[2] = 100;
+	}
+}

javali_tests/HW4_nop90/method invocation/OkCallInheritedMethod.javali

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+// call an method from a superclass
+
+class Main {
+	void main() {
+		C2 c;
+		c = new C2();
+		c.aux();
+	}
+}
+
+class C1{
+	void aux(){
+	write(2);
+	}
+}
+	
+class C2 extends C1 {}

javali_tests/HW4_nop90/method invocation/OkMethod.javali

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+// call a simple method and use its return value
+
+class Main {
+	void main() {
+		int a,b;
+		C c;
+		c = new C();
+		a = 5;
+		b = c.aux(a);
+	}
+}
+
+class C{
+	int aux(int arg){
+		return arg*2;
+	}
+}
+	
+

javali_tests/HW4_nop90/method invocation/OkMethod2.javali

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+// call a method with many parameters and use its return value
+// also Test Register use, by allocating memory
+
+class Main {
+	void main() {
+		int a,b,c,d,e,f,g,h,x;
+		a = 5;
+		b = 5;
+		c = 5;
+		d = 5;
+		e = 5;
+		f = 5;
+		g = 5;
+		h = 5;
+		
+		x = aux(a,b,c,d,e,f,g,h);
+
+	}
+	
+	int aux(int arg1, int arg2, int arg3, int arg4, int arg5, int arg6, int arg7, int arg8){
+		int[] x;
+		int i;
+		D d;
+		x = new int[20];
+		i = arg1 + arg2 + arg3 + arg4 - arg5 - arg6 + arg7 - arg8;
+		d = new D();
+		return i;
+	}
+}
+
+class D{
+	int[] x;
+}
+
+