added function calls, Rust functions, enviroment

src/parser.rs

@@ -21,6 +21,7 @@ pub enum ASTPart {
     Break(AstBreak),
     For(AstFor),
     Continue(AstContinue),
+    RustFunction(AstRustFunction),
     NOOP
 }
 #[derive(Debug, Clone, PartialEq)]
@@ -117,6 +118,11 @@ pub struct AstFor {
 pub struct AstContinue {
     pub pos: usize
 }
+#[derive(Debug, Clone, PartialEq)]
+pub struct AstRustFunction {
+    pub func: fn(Vec<ASTPart>) -> ASTPart,
+    pub pos: usize
+}
 
 fn is_end(input: &Token, end: &Vec<Token>) -> bool {
     for token in end {