Revert "Add call to parser"

This reverts commit 76da4a8e58.

src/main/java/parser/Parser.java

@@ -22,7 +22,6 @@ Der Parser nimmt einen String mit dem Quelltext entgegen und erzeugt daraus ein
 package parser;
 
 import expression.*;
-import expression.Identifier;
 import expression.Int;
 import program.*;
 
@@ -86,25 +85,12 @@ des Quelltextes geparsed wurden.
                 statement = conditional();
             } catch (SyntaxException se2) {
                 position = start;
-                try {
-                    statement = loop();
-                } catch (SyntaxException se3) {
-                    position = start;
-                    statement = call();
-                }
+                statement = loop();
             }
         }
         return statement;
     }
 
-    Program call() {
-        Identifier name = identifier();
-        consume("(");
-        Expression argument = expression();
-        consume(")");
-        return new Call(name, argument);
-    }
-
     Program loop() {
         consume("while");
         consume("(");

src/main/java/program/Call.java

@@ -1,38 +0,0 @@
-package program;
-
-import expression.Expression;
-import expression.Identifier;
-
-public class Call extends Program {
-    final Identifier name;
-    final Expression argument;
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-
-        Call that = (Call) o;
-
-        if (!name.equals(that.name)) return false;
-        return argument.equals(that.argument);
-
-    }
-
-    @Override
-    public String toString() {
-        return name + "(" + argument + ")";
-    }
-
-    @Override
-    public int hashCode() {
-        int result = name.hashCode();
-        result = 31 * result + argument.hashCode();
-        return result;
-    }
-
-    public Call(Identifier name, Expression argument) {
-        this.name = name;
-        this.argument = argument;
-    }
-}

src/test/java/parser/ParserTest.java

@@ -52,15 +52,6 @@ public class ParserTest {
         assertEquals(loop, parser.statement());
     }
 
-    final String callCode = "print(x + 36)";
-    final Call call = new Call(new Identifier("print"), new Addition(new Identifier("x"), new Int(36)));
-
-    @Test
-    public void testStatementCall() {
-        Parser parser = new Parser(callCode);
-        assertEquals(call, parser.statement());
-    }
-
     @Test
     public void testAssignment() {
         Parser parser = new Parser(assignmentCode);
@@ -79,12 +70,6 @@ public class ParserTest {
         assertEquals(loop, parser.loop());
     }
 
-    @Test
-    public void testCall() {
-        Parser parser = new Parser(callCode);
-        assertEquals(call, parser.call());
-    }
-
     final String expressionCode = "a+b - (c - 56) + -47";
     final Expression expression = new Addition(new Subtraction(new Addition(new Identifier("a"), new Identifier("b")), new Subtraction(new Identifier("c"), new Int(56))), new Int(-47));