rt: Small modifications made to the runtime values.

Author: hexaredecimal

src/main/java/org/piccode/rt/PiccodeArray.java

@@ -15,6 +15,7 @@ public PiccodeArray(List<PiccodeValue> nodes) {
 		this.nodes = nodes;
 	}
 
+
 	@Override
 	public String toString() {
 		StringBuilder sb = new StringBuilder();

src/main/java/org/piccode/rt/PiccodeClosure.java

@@ -11,7 +11,7 @@
  * @author hexaredecimal
  */
 public class PiccodeClosure implements PiccodeValue {
-
+	
 	List<Arg> params; // Full list of args (with name and default val)
 	Map<String, PiccodeValue> appliedArgs; // Applied named args
 	int positionalIndex; // How many positional args have been applied so far

src/main/java/org/piccode/rt/PiccodeModule.java

@@ -10,6 +10,7 @@
  * @author hexaredecimal
  */
 public class PiccodeModule implements PiccodeValue{
+	
 	public String name; 
 	public List<Ast> nodes; 
 

src/main/java/org/piccode/rt/PiccodeString.java

@@ -8,6 +8,7 @@
  * @author hexaredecimal
  */
 public class PiccodeString implements PiccodeValue {
+	public static final Type TYPE = Type.STRING;
 	private String string;
 
 	public PiccodeString(String str) {

src/main/java/org/piccode/rt/PiccodeUnit.java

@@ -6,6 +6,7 @@
  * @author hexaredecimal
  */
 public class PiccodeUnit implements PiccodeValue {
+
 	@Override
 	public Object raw() {
 		return Void.TYPE;

src/main/java/org/piccode/rt/PiccodeValue.java

@@ -1,10 +1,50 @@
 package org.piccode.rt;
 
+import com.github.tomaslanger.chalk.Chalk;
+import org.piccode.ast.Ast;
+
 /**
  *
  * @author hexaredecimal
  */
 public interface PiccodeValue {
 	public Object raw();
 	public String type();
+
+	public static void verifyType(Ast caller, PiccodeValue value, Type type) {
+		var typeOfValue = Type.of(value);
+		if (typeOfValue != type) {
+			throw new PiccodeException(
+				caller.file, 
+				caller.line, 
+				caller.column, 
+				"Invalid type. Expected type " + Chalk.on(type.toString()).green() 
+					+ " but got " + Chalk.on(typeOfValue.toString()).red()
+			);
+		}
+	}
+
+	public static enum Type {
+		NUMBER, 
+		STRING,
+		BOOLEAN,
+		ARRAY,
+		TYPLE,
+		OBJECT,
+		CLOSURE,
+		MODULE,
+		UNIT,
+		VALUE,
+		NATIVEFUNCTION;
+
+		public static Type of(PiccodeValue value) {
+			if (value instanceof PiccodeNumber ) return NUMBER;
+			if (value instanceof PiccodeString ) return STRING;
+			if (value instanceof PiccodeBoolean) return BOOLEAN;
+			if (value instanceof PiccodeObject ) return OBJECT;
+			if (value instanceof PiccodeTuple  ) return TYPLE;
+			if (value instanceof PiccodeClosure) return CLOSURE;
+			return VALUE;
+		}
+	}
 }