Implement variables

common/src/main/java/com/dfsek/terra/api/structures/parser/Parser.java

@@ -26,6 +26,12 @@ import com.dfsek.terra.api.structures.parser.lang.operations.statements.GreaterT
 import com.dfsek.terra.api.structures.parser.lang.operations.statements.LessThanOrEqualsStatement;
 import com.dfsek.terra.api.structures.parser.lang.operations.statements.LessThanStatement;
 import com.dfsek.terra.api.structures.parser.lang.operations.statements.NotEqualsStatement;
+import com.dfsek.terra.api.structures.parser.lang.variables.Assignment;
+import com.dfsek.terra.api.structures.parser.lang.variables.BooleanVariable;
+import com.dfsek.terra.api.structures.parser.lang.variables.Getter;
+import com.dfsek.terra.api.structures.parser.lang.variables.NumberVariable;
+import com.dfsek.terra.api.structures.parser.lang.variables.StringVariable;
+import com.dfsek.terra.api.structures.parser.lang.variables.Variable;
 import com.dfsek.terra.api.structures.tokenizer.Position;
 import com.dfsek.terra.api.structures.tokenizer.Token;
 import com.dfsek.terra.api.structures.tokenizer.Tokenizer;
@@ -42,7 +48,7 @@ import java.util.Set;
 public class Parser {
     private final String data;
     private final Map<String, FunctionBuilder<? extends Function<?>>> functions = new HashMap<>();
-    private final Set<String> keywords = Sets.newHashSet("if");
+    private final Set<String> keywords = Sets.newHashSet("if", "return", "var");
 
     Set<Token.Type> allowedArguments = Sets.newHashSet(Token.Type.STRING, Token.Type.NUMBER, Token.Type.IDENTIFIER);
 
@@ -73,12 +79,12 @@ public class Parser {
         }
         if(blockLevel != 0) throw new ParseException("Dangling opening brace");
 
-        return parseBlock(tokens);
+        return parseBlock(tokens, new HashMap<>());
     }
 
 
     @SuppressWarnings("unchecked")
-    private Keyword<?> parseKeyword(List<Token> tokens) throws ParseException {
+    private Keyword<?> parseKeyword(List<Token> tokens, Map<String, Variable<?>> variableMap) throws ParseException {
 
         Token identifier = tokens.remove(0);
         checkType(identifier, Token.Type.KEYWORD);
@@ -89,24 +95,24 @@ public class Parser {
 
             checkType(tokens.remove(0), Token.Type.GROUP_BEGIN);
 
-            Returnable<?> comparator = parseExpression(tokens, true);
+            Returnable<?> comparator = parseExpression(tokens, true, variableMap);
             checkReturnType(comparator, Returnable.ReturnType.BOOLEAN);
 
             checkType(tokens.remove(0), Token.Type.GROUP_END);
 
             checkType(tokens.remove(0), Token.Type.BLOCK_BEGIN);
 
-            k = new IfKeyword(parseBlock(tokens), (Returnable<Boolean>) comparator, identifier.getPosition());
+            k = new IfKeyword(parseBlock(tokens, variableMap), (Returnable<Boolean>) comparator, identifier.getPosition());
 
         }
         return k;
     }
 
     @SuppressWarnings("unchecked")
-    private Returnable<?> parseExpression(List<Token> tokens, boolean full) throws ParseException {
+    private Returnable<?> parseExpression(List<Token> tokens, boolean full, Map<String, Variable<?>> variableMap) throws ParseException {
         Token first = tokens.get(0);
 
-        if(first.getType().equals(Token.Type.GROUP_BEGIN)) return parseGroup(tokens);
+        if(first.getType().equals(Token.Type.GROUP_BEGIN)) return parseGroup(tokens, variableMap);
 
         checkType(first, Token.Type.IDENTIFIER, Token.Type.BOOLEAN, Token.Type.STRING, Token.Type.NUMBER, Token.Type.BOOLEAN_NOT, Token.Type.GROUP_BEGIN);
 
@@ -116,8 +122,9 @@ public class Parser {
             tokens.remove(0);
         }
 
+        Token id = tokens.get(0);
         Returnable<?> expression;
-        if(tokens.get(0).isConstant()) {
+        if(id.isConstant()) {
             Token constantToken = tokens.remove(0);
             Position position = constantToken.getPosition();
             switch(constantToken.getType()) {
@@ -134,7 +141,13 @@ public class Parser {
                 default:
                     throw new UnsupportedOperationException("Unsupported constant token: " + constantToken.getType() + " at position: " + position);
             }
-        } else expression = parseFunction(tokens, false);
+        } else {
+            if(functions.containsKey(id.getContent())) expression = parseFunction(tokens, false, variableMap);
+            else if(variableMap.containsKey(id.getContent())) {
+                checkType(tokens.remove(0), Token.Type.IDENTIFIER);
+                expression = new Getter(variableMap.get(id.getContent()));
+            } else throw new ParseException("Unexpected token: " + id.getContent() + " at " + id.getPosition());
+        }
 
 
         if(not) {
@@ -142,32 +155,32 @@ public class Parser {
             expression = new BooleanNotOperation((Returnable<Boolean>) expression, expression.getPosition());
         }
         if(full && tokens.get(0).isBinaryOperator()) {
-            return parseBinaryOperation(expression, tokens);
+            return parseBinaryOperation(expression, tokens, variableMap);
         }
         return expression;
     }
 
-    private Returnable<?> parseGroup(List<Token> tokens) throws ParseException {
+    private Returnable<?> parseGroup(List<Token> tokens, Map<String, Variable<?>> variableMap) throws ParseException {
         checkType(tokens.remove(0), Token.Type.GROUP_BEGIN);
-        Returnable<?> expression = parseExpression(tokens, true);
+        Returnable<?> expression = parseExpression(tokens, true, variableMap);
         checkType(tokens.remove(0), Token.Type.GROUP_END);
         return expression;
     }
 
 
-    private BinaryOperation<?, ?> parseBinaryOperation(Returnable<?> left, List<Token> tokens) throws ParseException {
+    private BinaryOperation<?, ?> parseBinaryOperation(Returnable<?> left, List<Token> tokens, Map<String, Variable<?>> variableMap) throws ParseException {
         Token binaryOperator = tokens.remove(0);
         checkType(binaryOperator, Token.Type.ADDITION_OPERATOR, Token.Type.MULTIPLICATION_OPERATOR, Token.Type.DIVISION_OPERATOR, Token.Type.SUBTRACTION_OPERATOR,
                 Token.Type.GREATER_THAN_OPERATOR, Token.Type.LESS_THAN_OPERATOR, Token.Type.LESS_THAN_OR_EQUALS_OPERATOR, Token.Type.GREATER_THAN_OR_EQUALS_OPERATOR, Token.Type.EQUALS_OPERATOR, Token.Type.NOT_EQUALS_OPERATOR,
                 Token.Type.BOOLEAN_AND, Token.Type.BOOLEAN_OR);
 
-        Returnable<?> right = parseExpression(tokens, false);
+        Returnable<?> right = parseExpression(tokens, false, variableMap);
 
         Token other = tokens.get(0);
         if(other.isBinaryOperator() && (other.getType().equals(Token.Type.MULTIPLICATION_OPERATOR) || other.getType().equals(Token.Type.DIVISION_OPERATOR))) {
-            return assemble(left, parseBinaryOperation(right, tokens), binaryOperator);
+            return assemble(left, parseBinaryOperation(right, tokens, variableMap), binaryOperator);
         } else if(other.isBinaryOperator()) {
-            return parseBinaryOperation(assemble(left, right, binaryOperator), tokens);
+            return parseBinaryOperation(assemble(left, right, binaryOperator), tokens, variableMap);
         }
         return assemble(left, right, binaryOperator);
     }
@@ -209,35 +222,84 @@ public class Parser {
         }
     }
 
-    private Block parseBlock(List<Token> tokens) throws ParseException {
+    private Variable<?> parseVariableDeclaration(List<Token> tokens, Returnable.ReturnType type) throws ParseException {
+        checkVarType(tokens.get(0), type); // Check for type mismatch
+        switch(type) {
+            case NUMBER:
+                return new NumberVariable(0d, tokens.get(0).getPosition());
+            case STRING:
+                return new StringVariable("", tokens.get(0).getPosition());
+            case BOOLEAN:
+                return new BooleanVariable(false, tokens.get(0).getPosition());
+        }
+        throw new UnsupportedOperationException("Unsupported variable type: " + type);
+    }
+
+    private Block parseBlock(List<Token> tokens, Map<String, Variable<?>> superVars) throws ParseException {
         List<Item<?>> parsedItems = new GlueList<>();
+
+        Map<String, Variable<?>> parsedVariables = new HashMap<>(superVars); // New hashmap as to not mutate parent scope's declarations.
+
         Token first = tokens.get(0);
 
-        checkType(tokens.get(0), Token.Type.IDENTIFIER, Token.Type.KEYWORD);
+        checkType(tokens.get(0), Token.Type.IDENTIFIER, Token.Type.KEYWORD, Token.Type.NUMBER_VARIABLE, Token.Type.STRING_VARIABLE, Token.Type.BOOLEAN_VARIABLE);
         main:
         while(tokens.size() > 0) {
             Token token = tokens.get(0);
-            checkType(token, Token.Type.IDENTIFIER, Token.Type.KEYWORD, Token.Type.BLOCK_END);
+            checkType(token, Token.Type.IDENTIFIER, Token.Type.KEYWORD, Token.Type.BLOCK_END, Token.Type.NUMBER_VARIABLE, Token.Type.STRING_VARIABLE, Token.Type.BOOLEAN_VARIABLE);
             switch(token.getType()) {
                 case KEYWORD:
-                    parsedItems.add(parseKeyword(tokens));
+                    parsedItems.add(parseKeyword(tokens, parsedVariables));
                     if(tokens.isEmpty()) break;
                     checkType(tokens.get(0), Token.Type.IDENTIFIER, Token.Type.KEYWORD, Token.Type.BLOCK_END);
                     break;
                 case IDENTIFIER:
-                    parsedItems.add(parseFunction(tokens, true));
+                    parsedItems.add(parseFunction(tokens, true, parsedVariables));
                     if(tokens.isEmpty()) break;
                     checkType(tokens.remove(0), Token.Type.STATEMENT_END, Token.Type.BLOCK_END);
                     break;
                 case BLOCK_END:
-                    tokens.remove(0);
+                    tokens.remove(0); // Remove block end.
                     break main;
+                case NUMBER_VARIABLE:
+                case BOOLEAN_VARIABLE:
+                case STRING_VARIABLE:
+                    Variable<?> temp;
+                    if(token.getType().equals(Token.Type.NUMBER_VARIABLE))
+                        temp = parseVariableDeclaration(tokens, Returnable.ReturnType.NUMBER);
+                    else if(token.getType().equals(Token.Type.STRING_VARIABLE))
+                        temp = parseVariableDeclaration(tokens, Returnable.ReturnType.STRING);
+                    else temp = parseVariableDeclaration(tokens, Returnable.ReturnType.BOOLEAN);
+                    Token name = tokens.get(1);
+
+                    checkType(name, Token.Type.IDENTIFIER);
+
+                    parsedVariables.put(name.getContent(), temp);
+                    parsedItems.add(parseAssignment(temp, tokens, parsedVariables));
+                    checkType(tokens.remove(0), Token.Type.STATEMENT_END);
             }
         }
         return new Block(parsedItems, first.getPosition());
     }
 
-    private Function<?> parseFunction(List<Token> tokens, boolean fullStatement) throws ParseException {
+    @SuppressWarnings("unchecked")
+    private Assignment<?> parseAssignment(Variable<?> variable, List<Token> tokens, Map<String, Variable<?>> variableMap) throws ParseException {
+        checkType(tokens.remove(0), Token.Type.STRING_VARIABLE, Token.Type.BOOLEAN_VARIABLE, Token.Type.NUMBER_VARIABLE);
+
+        Token name = tokens.get(0);
+
+        checkType(tokens.remove(0), Token.Type.IDENTIFIER);
+
+        checkType(tokens.remove(0), Token.Type.ASSIGNMENT);
+
+        Returnable<?> expression = parseExpression(tokens, true, variableMap);
+
+        checkReturnType(expression, variable.getType());
+
+        return new Assignment<>((Variable<Object>) variable, (Returnable<Object>) expression, name.getPosition());
+    }
+
+    private Function<?> parseFunction(List<Token> tokens, boolean fullStatement, Map<String, Variable<?>> variableMap) throws ParseException {
         Token identifier = tokens.remove(0);
         checkType(identifier, Token.Type.IDENTIFIER); // First token must be identifier
 
@@ -247,7 +309,7 @@ public class Parser {
         checkType(tokens.remove(0), Token.Type.GROUP_BEGIN); // Second is body begin
 
 
-        List<Returnable<?>> args = getArgs(tokens); // Extract arguments, consume the rest.
+        List<Returnable<?>> args = getArgs(tokens, variableMap); // Extract arguments, consume the rest.
 
         tokens.remove(0); // Remove body end
 
@@ -268,11 +330,11 @@ public class Parser {
     }
 
 
-    private List<Returnable<?>> getArgs(List<Token> tokens) throws ParseException {
+    private List<Returnable<?>> getArgs(List<Token> tokens, Map<String, Variable<?>> variableMap) throws ParseException {
         List<Returnable<?>> args = new GlueList<>();
 
         while(!tokens.get(0).getType().equals(Token.Type.GROUP_END)) {
-            args.add(parseExpression(tokens, true));
+            args.add(parseExpression(tokens, true, variableMap));
             checkType(tokens.get(0), Token.Type.SEPARATOR, Token.Type.GROUP_END);
             if(tokens.get(0).getType().equals(Token.Type.SEPARATOR)) tokens.remove(0);
         }
@@ -300,4 +362,11 @@ public class Parser {
             throw new ParseException("Operation " + operation.getType() + " not supported between " + left.returnType() + " and " + right.returnType() + ": " + operation.getPosition());
         }
     }
+
+    private void checkVarType(Token token, Returnable.ReturnType returnType) throws ParseException {
+        if(returnType.equals(Returnable.ReturnType.STRING) && token.getType().equals(Token.Type.STRING_VARIABLE)) return;
+        if(returnType.equals(Returnable.ReturnType.NUMBER) && token.getType().equals(Token.Type.NUMBER_VARIABLE)) return;
+        if(returnType.equals(Returnable.ReturnType.BOOLEAN) && token.getType().equals(Token.Type.BOOLEAN_VARIABLE)) return;
+        throw new ParseException("Type mismatch, cannot convert from " + returnType + " to " + token.getType() + ": " + token.getPosition());
+    }
 }

common/src/main/java/com/dfsek/terra/api/structures/parser/lang/variables/Assignment.java

@@ -0,0 +1,38 @@
+package com.dfsek.terra.api.structures.parser.lang.variables;
+
+import com.dfsek.terra.api.math.vector.Location;
+import com.dfsek.terra.api.platform.world.Chunk;
+import com.dfsek.terra.api.structures.parser.lang.Item;
+import com.dfsek.terra.api.structures.parser.lang.Returnable;
+import com.dfsek.terra.api.structures.tokenizer.Position;
+
+public class Assignment<T> implements Item<T> {
+    private final Variable<T> delegate;
+    private final Returnable<T> value;
+    private final Position position;
+
+    public Assignment(Variable<T> delegate, Returnable<T> value, Position position) {
+        this.delegate = delegate;
+        this.value = value;
+        this.position = position;
+    }
+
+    @Override
+    public T apply(Location location) {
+        T val = value.apply(location);
+        delegate.setValue(val);
+        return val;
+    }
+
+    @Override
+    public T apply(Location location, Chunk chunk) {
+        T val = value.apply(location, chunk);
+        delegate.setValue(val);
+        return val;
+    }
+
+    @Override
+    public Position getPosition() {
+        return position;
+    }
+}

common/src/main/java/com/dfsek/terra/api/structures/parser/lang/variables/BooleanVariable.java

@@ -0,0 +1,34 @@
+package com.dfsek.terra.api.structures.parser.lang.variables;
+
+import com.dfsek.terra.api.structures.parser.lang.Returnable;
+import com.dfsek.terra.api.structures.tokenizer.Position;
+
+public class BooleanVariable implements Variable<Boolean> {
+    private final Position position;
+    private Boolean value;
+
+    public BooleanVariable(Boolean value, Position position) {
+        this.value = value;
+        this.position = position;
+    }
+
+    @Override
+    public Boolean getValue() {
+        return value;
+    }
+
+    @Override
+    public void setValue(Boolean value) {
+        this.value = value;
+    }
+
+    @Override
+    public Returnable.ReturnType getType() {
+        return Returnable.ReturnType.BOOLEAN;
+    }
+
+    @Override
+    public Position getPosition() {
+        return position;
+    }
+}

common/src/main/java/com/dfsek/terra/api/structures/parser/lang/variables/Getter.java

@@ -0,0 +1,34 @@
+package com.dfsek.terra.api.structures.parser.lang.variables;
+
+import com.dfsek.terra.api.math.vector.Location;
+import com.dfsek.terra.api.platform.world.Chunk;
+import com.dfsek.terra.api.structures.parser.lang.Returnable;
+import com.dfsek.terra.api.structures.tokenizer.Position;
+
+public class Getter implements Returnable<Object> {
+    private final Variable<?> delegate;
+
+    public Getter(Variable<?> delegate) {
+        this.delegate = delegate;
+    }
+
+    @Override
+    public ReturnType returnType() {
+        return delegate.getType();
+    }
+
+    @Override
+    public Object apply(Location location) {
+        return delegate.getValue();
+    }
+
+    @Override
+    public Object apply(Location location, Chunk chunk) {
+        return delegate.getValue();
+    }
+
+    @Override
+    public Position getPosition() {
+        return delegate.getPosition();
+    }
+}

common/src/main/java/com/dfsek/terra/api/structures/parser/lang/variables/NumberVariable.java

@@ -0,0 +1,34 @@
+package com.dfsek.terra.api.structures.parser.lang.variables;
+
+import com.dfsek.terra.api.structures.parser.lang.Returnable;
+import com.dfsek.terra.api.structures.tokenizer.Position;
+
+public class NumberVariable implements Variable<Number> {
+    private final Position position;
+    private Number value;
+
+    public NumberVariable(Number value, Position position) {
+        this.value = value;
+        this.position = position;
+    }
+
+    @Override
+    public Number getValue() {
+        return value;
+    }
+
+    @Override
+    public void setValue(Number value) {
+        this.value = value;
+    }
+
+    @Override
+    public Returnable.ReturnType getType() {
+        return Returnable.ReturnType.NUMBER;
+    }
+
+    @Override
+    public Position getPosition() {
+        return position;
+    }
+}

common/src/main/java/com/dfsek/terra/api/structures/parser/lang/variables/StringVariable.java

@@ -0,0 +1,34 @@
+package com.dfsek.terra.api.structures.parser.lang.variables;
+
+import com.dfsek.terra.api.structures.parser.lang.Returnable;
+import com.dfsek.terra.api.structures.tokenizer.Position;
+
+public class StringVariable implements Variable<String> {
+    private final Position position;
+    private String value;
+
+    public StringVariable(String value, Position position) {
+        this.value = value;
+        this.position = position;
+    }
+
+    @Override
+    public String getValue() {
+        return value;
+    }
+
+    @Override
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+    @Override
+    public Returnable.ReturnType getType() {
+        return Returnable.ReturnType.STRING;
+    }
+
+    @Override
+    public Position getPosition() {
+        return position;
+    }
+}

common/src/main/java/com/dfsek/terra/api/structures/parser/lang/variables/Variable.java

@@ -0,0 +1,14 @@
+package com.dfsek.terra.api.structures.parser.lang.variables;
+
+import com.dfsek.terra.api.structures.parser.lang.Returnable;
+import com.dfsek.terra.api.structures.tokenizer.Position;
+
+public interface Variable<T> {
+    T getValue();
+
+    void setValue(T value);
+
+    Returnable.ReturnType getType();
+
+    Position getPosition();
+}

common/src/main/java/com/dfsek/terra/api/structures/tokenizer/Token.java

@@ -163,6 +163,12 @@ public class Token {
         /**
          * Boolean and
          */
-        BOOLEAN_AND
+        BOOLEAN_AND,
+        /**
+         * Variable declaration
+         */
+        NUMBER_VARIABLE,
+        STRING_VARIABLE,
+        BOOLEAN_VARIABLE
     }
 }

common/src/main/java/com/dfsek/terra/api/structures/tokenizer/Tokenizer.java

@@ -12,7 +12,7 @@ public class Tokenizer {
     private final Lookahead reader;
 
     private final Set<Character> syntaxSignificant = Sets.newHashSet(';', '(', ')', '"', ',', '\\', '=', '{', '}', '+', '-', '*', '/', '>', '<', '!'); // Reserved chars
-    private final Set<String> keywords = Sets.newHashSet("if", "return");
+    private final Set<String> keywords = Sets.newHashSet("if", "return", "num", "bool", "str");
 
 
     public Tokenizer(String data) {
@@ -20,7 +20,7 @@ public class Tokenizer {
     }
 
     public boolean hasNext() {
-        while(!reader.current().isEOF() && reader.current().isWhitespace()) reader.consume(); // Consume whitespace.
+        //while(!reader.current().isEOF() && reader.current().isWhitespace()) reader.consume(); // Consume whitespace.
         return !reader.current().isEOF();
     }
 
@@ -50,11 +50,19 @@ public class Tokenizer {
             return new Token(">=", Token.Type.GREATER_THAN_OR_EQUALS_OPERATOR, new Position(reader.getLine(), reader.getIndex()));
         if(reader.matches("<=", true))
             return new Token("<=", Token.Type.LESS_THAN_OR_EQUALS_OPERATOR, new Position(reader.getLine(), reader.getIndex()));
+
         if(reader.matches("||", true))
             return new Token("||", Token.Type.BOOLEAN_OR, new Position(reader.getLine(), reader.getIndex()));
         if(reader.matches("&&", true))
             return new Token("&&", Token.Type.BOOLEAN_AND, new Position(reader.getLine(), reader.getIndex()));
 
+        if(reader.matches("num ", true))
+            return new Token("num ", Token.Type.NUMBER_VARIABLE, new Position(reader.getLine(), reader.getIndex()));
+        if(reader.matches("str ", true))
+            return new Token("str ", Token.Type.STRING_VARIABLE, new Position(reader.getLine(), reader.getIndex()));
+        if(reader.matches("bool ", true))
+            return new Token("bool ", Token.Type.BOOLEAN_VARIABLE, new Position(reader.getLine(), reader.getIndex()));
+
 
         if(isNumberStart()) {
             StringBuilder num = new StringBuilder();
@@ -111,7 +119,8 @@ public class Tokenizer {
         StringBuilder token = new StringBuilder();
         while(!reader.current().isEOF() && !isSyntaxSignificant(reader.current().getCharacter())) {
             Char c = reader.consume();
-            if(!c.isWhitespace()) token.append(c);
+            if(c.isWhitespace()) break;
+            token.append(c);
         }
 
         String tokenString = token.toString();

common/src/test/java/structure/ParserTest.java

@@ -4,7 +4,7 @@ import com.dfsek.terra.api.math.vector.Location;
 import com.dfsek.terra.api.platform.world.Chunk;
 import com.dfsek.terra.api.structures.parser.Parser;
 import com.dfsek.terra.api.structures.parser.exceptions.ParseException;
-import com.dfsek.terra.api.structures.parser.lang.Item;
+import com.dfsek.terra.api.structures.parser.lang.Block;
 import com.dfsek.terra.api.structures.parser.lang.Returnable;
 import com.dfsek.terra.api.structures.parser.lang.functions.Function;
 import com.dfsek.terra.api.structures.parser.lang.functions.FunctionBuilder;
@@ -23,7 +23,7 @@ public class ParserTest {
         parser.addFunction("test", new FunctionBuilder<Test1>() {
             @Override
             public Test1 build(List<Returnable<?>> argumentList, Position position) throws ParseException {
-                return new Test1(argumentList.get(0).apply(new Location(null, 0, 0, 0)).toString(), Double.parseDouble(argumentList.get(1).apply(new Location(null, 0, 0, 0)).toString()), position);
+                return new Test1(argumentList.get(0), argumentList.get(1), position);
             }
 
             @Override
@@ -46,34 +46,27 @@ public class ParserTest {
         });
 
         long l = System.nanoTime();
-        List<Item<?>> functions = parser.parse().getItems();
+        Block block = parser.parse();
         long t = System.nanoTime() - l;
         System.out.println("Took " + (double) t / 1000000);
 
-        for(Item<?> f : functions) System.out.println(f);
+        block.apply(null);
     }
 
     private static class Test1 implements Function<Void> {
-        private final String a;
+        private final Returnable<?> a;
-        private final double b;
+        private final Returnable<?> b;
         private final Position position;
 
-        public Test1(String a, double b, Position position) {
+        public Test1(Returnable<?> a, Returnable<?> b, Position position) {
             this.a = a;
             this.b = b;
             this.position = position;
         }
 
-        public String getA() {
-            return a;
-        }
-
-        public double getB() {
-            return b;
-        }
-
         @Override
         public Void apply(Location location) {
+            System.out.println("string: " + a.apply(location) + ", double: " + b.apply(location));
             return null;
         }
 
@@ -92,11 +85,6 @@ public class ParserTest {
             return null;
         }
 
-        @Override
-        public String toString() {
-            return "string: " + a + ", double: " + b;
-        }
-
         @Override
         public ReturnType returnType() {
             return ReturnType.VOID;

common/src/test/resources/test.tesf

@@ -1,5 +1,12 @@
 test("hello" + 3 + "gdfg", (2 * (3+1) * (2 * (1+1))));
 
-if(true || false) {
+num testVar = 3.4;
-    test("fdsgdf" + 2, 1);
+bool boolean = true;
-}
+str stringVar = "hello!";
+
+if(true && boolean) {
+    num scopedVar = 2;
+    test("fdsgdf" + 2 + stringVar, 1 + testVar + scopedVar);
+}
+
+test("fdsgdf" + 2, 1 + testVar);