fixed some scope issues and added label and line reference support to the AST

ground_ast.py

@@ -43,6 +43,15 @@ class FunctionNode:
 	parent: FunctionNode | RootNode
 	return_type: Optional[str] = None
 	name: Optional[str] = None
+@dataclass
+class LabelDecNode:
+	name: str
+@dataclass
+class LabelRefNode:
+	name: str
+@dataclass
+class LineRefNode:
+	line: int
 
 def generate_ast(tokens: list[Token], code: str) -> RootNode:
 	root_node = RootNode([])
@@ -55,7 +64,7 @@ def generate_ast(tokens: list[Token], code: str) -> RootNode:
 	# todo: this is the absolute WORST way i could do this, but i could not care less lmao
 	#       its not even performant...... 
 	for token in tokens:
-		print(token)
+		#print(token.type)
 		if token.type == TokenType.INSTRUCTION:
 			if current_node:
 				scope.statements.append(current_node)
@@ -68,9 +77,15 @@ def generate_ast(tokens: list[Token], code: str) -> RootNode:
 				current_node_type = "inst"
 
 				if current_node.instruction == "endfun":
-					scope = scope.parent # go up one scope
+					if scope == root_node:
+						traceback(code, "ScopeError", "You can't use endfun from global scope, did you mean to use the \"end\" instruction?")
 
-				current_node.parent = scope
+					scope = scope.parent # go up one scope
+					current_node.parent = scope
+					scope.statements.append(current_node)
+					current_node = scope
+				else:
+					current_node.parent = scope
 			else:
 				current_node = FunctionNode([], [], scope)
 				current_node_type = "func"
@@ -88,11 +103,22 @@ def generate_ast(tokens: list[Token], code: str) -> RootNode:
 				else:
 					traceback(code, "SyntaxError", "Expected instruction, not number.")
 
+			elif token.type == TokenType.LINE_REFERENCE:
+				if current_node_type == "inst":
+					current_node.arguments.append(LineRefNode(token.value))
+				else:
+					traceback(code, "SyntaxError", "Expected instruction, not line reference")
+			
+			elif token.type == TokenType.LABEL_REFERENCE:
+				if current_node_type == "inst":
+					current_node.arguments.append(LabelRefNode(token.value))
+				else:
+					traceback(code, "SyntaxError", "Expected instruction, not label reference")
+
 			elif token.type == TokenType.VARIABLE_POINTER:
 				if current_node_type == "inst":
 					current_node.arguments.append(VarPointerNode(token.value))
 				elif last_token and last_token.type == TokenType.TYPE and current_node_type == "func":
-					print(current_node)
 					current_node.args[-1].name = token.value
 				else:
 					traceback(code, "SyntaxError", "Expected instruction, not variable pointer.")
@@ -126,6 +152,9 @@ def generate_ast(tokens: list[Token], code: str) -> RootNode:
 				else:
 					traceback(code, "SyntaxError", "Expected instruction or function return type, got function reference.")
 
+			elif token.type == TokenType.LABEL_DECLERATION:
+				scope.statements.append(LabelDecNode(token.value))
+
 			elif token.type == TokenType.EOF:
 				root_node.statements.append(current_node)
 		last_token = token

test2.grnd

@@ -5,8 +5,8 @@ fun -list !split -string &str -string &determiner
 set &x 2
 set &y 5
 add $x $y &x
-stdlnout $x
+return $x
 endfun
 
-# should error
-stdlnout $x
+@myLabel
+jump %myLabel