feat: parse function declarations + explicit types

Author: LynithDev

.idea/.gitignore

@@ -173,8 +173,8 @@ impl<'a> Lexer<'a> {
                 _ if double!('&', '&') => And,
                 _ if double!('|', '|') => Or,
 
-                '(' => LParam,
-                ')' => RParam,
+                '(' => LParen,
+                ')' => RParen,
                 '{' => LBracket,
                 '}' => RBracket,
                 ',' => Comma,

.idea/custom-language-rust.iml

@@ -87,9 +87,9 @@ pub enum LexerTokenKind {
 
     // punctuation
     /// `(`
-    LParam,
+    LParen,
     /// `)`
-    RParam,
+    RParen,
     /// `{`
     LBracket,
     /// `}`

.idea/discord.xml

@@ -16,17 +16,15 @@ pub enum Expression {
     ShellCommand(Box<ShellCommand>),
     Identifier(Box<Identifier>),
     FunctionCall(Box<(Identifier, Vec<Expression>)>),
-    If(Box<(Expression, Block, Option<Statement>)>),
+    If(Box<(Expression, WithCursor<Block>, Option<Statement>)>),
     Match(Box<(Expression, Vec<(Expression, Expression)>)>),
-    Empty,
 }
 
 
-
 #[derive(lang_macro::EnumVariants, Debug, Clone, PartialEq, Eq)]
 pub enum Statement {
-    While(Box<(WithCursor<Expression>, Block)>),
-    For(Box<(Variable, WithCursor<Expression>, Block)>),
+    While(Box<(WithCursor<Expression>, WithCursor<Block>)>),
+    For(Box<(Variable, WithCursor<Expression>, WithCursor<Block>)>),
     Return(Box<Option<WithCursor<Expression>>>),
     Expression(Box<WithCursor<Expression>>),
     Continue,
@@ -168,12 +166,14 @@ impl TryFrom<LexerTokenKind> for AssignmentOperator {
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Function {
     pub name: String,
-    pub parameters: Vec<Variable>,
-    pub body: Block,
+    pub parameters: Option<Vec<Variable>>,
+    pub strict_type: Option<String>,
+    pub body: WithCursor<Block>,
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Variable {
-    pub name: Box<String>,
-    pub value: Option<Box<WithCursor<Expression>>>,
+    pub name: String,
+    pub strict_type: Option<String>,
+    pub value: Option<WithCursor<Expression>>,
 }