Macro analyzed_tree 

macro_rules! analyzed_tree {
    ((None)) => { ... };
    ((Some($($node:tt)*))) => { ... };
    ((
        Program,
        globals: [$($global:tt),* $(,)?],
        functions: [$($func:tt),* $(,)?],
        main_fn: $main_fn:tt,
        used_builtins: [$($name:expr),* $(,)?] $(,)?
    )) => { ... };
    ((
        FunctionDefinition,
        used: $used:expr,
        name: $name:expr,
        params: [$($param:tt),* $(,)?],
        return_type: $return_type:expr,
        block: $block:tt $(,)?
    )) => { ... };
    ((
        Parameter,
        mutable: $mutable:expr,
        name: $name:expr,
        type: $type:expr $(,)?
    )) => { ... };
    ((
        Let,
        name: $name:expr,
        expr: $expr:tt $(,)?
    )) => { ... };
    ((LetStmt $($rest:tt)*)) => { ... };
    ((ReturnStmt, $expr:tt $(,)?)) => { ... };
    ((ExprStmt, $expr:tt $(,)?)) => { ... };
    ((
        Block -> $result_type:expr,
        stmts: [$($stmt:tt),* $(,)?],
        expr: $expr:tt $(,)?
    )) => { ... };
    ((BlockExpr $($rest:tt)*)) => { ... };
    ((
        IfExpr -> $result_type:expr,
        cond: $cond:tt,
        then_block: $then_block:tt,
        else_block: $else_block:tt $(,)?
    )) => { ... };
    ((Int $expr:expr)) => { ... };
    ((Float $expr:expr)) => { ... };
    ((Bool $expr:expr)) => { ... };
    ((Char $expr:expr)) => { ... };
    ((Ident -> $type:expr, $ident:expr)) => { ... };
    ((Grouped $expr:tt)) => { ... };
    ((
        PrefixExpr -> $result_type:expr,
        op: $op:expr,
        expr: $expr:tt $(,)?
    )) => { ... };
    ((
        InfixExpr -> $result_type:expr,
        lhs: $lhs:tt,
        op: $op:expr,
        rhs: $rhs:tt $(,)?
    )) => { ... };
    ((
        AssignExpr -> $result_type:expr,
        assignee: $assignee:expr,
        op: $op:expr,
        expr: $expr:tt $(,)?
    )) => { ... };
    ((
        CallExpr -> $result_type:expr,
        func: $func:expr,
        args: [$($arg:tt),* $(,)?] $(,)?
    )) => { ... };
    ((
        CastExpr -> $result_type:expr,
        expr: $expr:tt,
        type: $type:expr $(,)?
    )) => { ... };
}