finish ExpressionGenerator

src/main/java/de/dhbw/horb/ExpressionGenerator.java

@@ -2,6 +2,8 @@ package de.dhbw.horb;
 
 import de.dhbw.horb.ast.*;
 
+import java.util.List;
+
 public class ExpressionGenerator extends DecafBaseVisitor<Expression> {
     @Override
     public Expression visitBinaryOperation(DecafParser.BinaryOperationContext ctx) {
@@ -10,7 +12,7 @@ public class ExpressionGenerator extends DecafBaseVisitor<Expression> {
 
     @Override
     public Expression visitFunCallExpression(DecafParser.FunCallExpressionContext ctx) {
-        throw new RuntimeException("TODO");
+        return generateFunctionCall(ctx.funcCall());
     }
 
     @Override
@@ -30,6 +32,14 @@ public class ExpressionGenerator extends DecafBaseVisitor<Expression> {
         return generateLocation(ctx.loc());
     }
 
+    public static FunctionCall generateFunctionCall(DecafParser.FuncCallContext ctx) {
+        String name = ctx.id().getText();
+        List<DecafParser.ExprContext> expressions = ctx.args().expr();
+        List<Expression> args = expressions.stream()
+                .map(exp -> new ExpressionGenerator().visit(exp)).toList();
+        return new FunctionCall(name, args);
+    }
+
     public static Expression generateConstant(DecafParser.LiteralContext ctx){
         if(ctx.number() != null)
             return new IntConstant(Integer.valueOf(ctx.number().getText()));