example files for presentation

Examples/FieldAccessAndMethodCalls.java

@@ -0,0 +1,43 @@
+public class FieldAccessAndMethodCalls {
+    public static void main(String[] args) {
+        Class1 c1 = new Class1();
+        int i = c1.c2.c3.m3(1).m2().m1();
+        print(i);
+    }
+}
+
+public class Class1{
+    int i1;
+    Class2 c2;
+    public Class1{
+        this.c2 = new Class2();
+    }
+    public int m1(){
+        return i1;
+    }
+}
+
+public class Class2{
+    int i2;
+    Class3 c3;
+    public Class3{
+        this.c3 = new Class3();
+    }
+    public Class1 m2(){
+        Class1 c1 = new Class2();
+        c1.i1 = i2;
+        return c1;
+    }
+}
+
+public class Class3{
+    int i3;
+    public Class3(int i){
+        this.i1 = i;
+    }
+    public Class2 m3(int i){
+        Class2 c2 = new Class2();
+        c2.i2 = i;
+        return c2;
+    }
+}

src/main/java/Compiler.java

@@ -22,10 +22,11 @@ public class Compiler {
 
         if (args.length < 1) {
             System.out.println("Usage: java -jar Compiler.jar <file_path> [--suppress-details]");
-            return;
+           // return;
         }
 
-        String filePath = args[0];
+        //String filePath = args[0];
+        String filePath = "C:/Users/dh10krj/Downloads/TestClass.java";
 
         boolean suppressDetails = false;
 
@@ -94,16 +95,19 @@ public class Compiler {
         }catch (Exception e){
             System.out.println("A unexpected error occurred in TypeCheck.");
             System.out.println(e);
+            return;
         }
 
         if(!suppressDetails)
             System.out.println("No TypeCheck errors found.");
 
+        abstractSyntaxTree.codeGen();//todo remove
         try {
             abstractSyntaxTree.codeGen();
         }catch (Exception e){
             System.out.println("A error occurred during code generation. Your input was not compiled.");
             System.out.println(e);
+            return;
         }
         System.out.println("Your input was compiled. You can find the output in your current working directory.");
     }

src/main/java/Input.java

@@ -1,13 +1,40 @@
-class Example1b {
-    public int fak(int number){
-        if(number < 0){
-            return 1;
-        }
-        int factorial = 1;
-        int i = 0;
-        while(i < number){
-            factorial = factorial * i;
-        }
-        return factorial;
+class FieldAccessAndMethodCalls {
+    public static void main(String[] args) {
+        Class1 c1 = new Class1();
+        int i = c1.c2.c3.m3(1).m2().m1();
+        System.out.println(i);
     }
 }
+
+class Class1{
+    int i1;
+    Class2 c2;
+    public Class1() {
+        this.c2 = new Class2();
+    }
+    public int m1(){
+        return i1;
+    }
+}
+
+class Class2{
+    int i2;
+    Class3 c3;
+    public Class2(){
+        this.c3 = new Class3();
+    }
+    public Class1 m2(){
+        Class1 c1 = new Class1();
+        c1.i1 = i2;
+        return c1;
+    }
+}
+
+class Class3{
+    int i3;
+    public Class2 m3(int i){
+        Class2 c2 = new Class2();
+        c2.i2 = i;
+        return c2;
+    }
+}

src/main/java/abstractSyntaxTree/Statement/ReturnStatement.java

@@ -5,6 +5,7 @@ import TypeCheck.TypeCheckResult;
 import TypeCheck.AbstractType;
 import abstractSyntaxTree.Expression.IExpression;
 import abstractSyntaxTree.Expression.InstVarExpression;
+import abstractSyntaxTree.Expression.LocalVarIdentifier;
 import abstractSyntaxTree.Parameter.ParameterList;
 import abstractSyntaxTree.StatementExpression.MethodCallStatementExpression;
 import org.objectweb.asm.*;
@@ -33,6 +34,8 @@ public class ReturnStatement extends AbstractType implements IStatement{
                 methodCallStatementExpression.thisClass = this.thisClass;
             else if(expression instanceof InstVarExpression instVarExpression)
                     instVarExpression.thisClass = this.thisClass;
+            else if(expression instanceof LocalVarIdentifier localVarIdentifier)
+                localVarIdentifier.thisClass = this.thisClass;
             TypeCheckResult typedExpression = expression.typeCheck(methodContext, typeContext, localVars);
             result.type = typedExpression.type;
         }

src/main/java/abstractSyntaxTree/StatementExpression/AssignStatementExpression.java

@@ -36,6 +36,7 @@ public class AssignStatementExpression extends AbstractType implements IExpressi
         TypeCheckResult leftType;
 
         if (left instanceof LocalVarIdentifier localVarIdentifier) {
+            localVarIdentifier.thisClass  = thisClass;
             leftType = new TypeCheckResult();
             String identifier = localVarIdentifier.getIdentifier();
             leftType.type = localVars.get(identifier);
@@ -51,6 +52,8 @@ public class AssignStatementExpression extends AbstractType implements IExpressi
         }
         if(right instanceof MethodCallStatementExpression methodCallStatementExpression)
             methodCallStatementExpression.thisClass = this.thisClass;
+        if(right instanceof LocalVarIdentifier localVarIdentifierRight)
+            localVarIdentifierRight.thisClass = this.thisClass;
 
         TypeCheckResult rightType = right.typeCheck(methodContext, typeContext, localVars);