Alek Ratzloff
f0032afe12
* Introduce new `fn` keyword * Function example is added to examples/expr.not Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
45 lines
2.3 KiB
Rust
45 lines
2.3 KiB
Rust
use crate::syn::ast::*;
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pub trait Accept<V: Visit + ?Sized> {
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fn accept(&self, visitor: &mut V) -> V::Out;
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}
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pub trait DefaultAccept<V: Visit + ?Sized> {
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fn default_accept(&self, visitor: &mut V) -> V::Out;
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}
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pub trait Visit {
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type Out;
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fn visit_body(&mut self, body: &Body) -> Self::Out;
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fn visit_stmt(&mut self, stmt: &Stmt) -> Self::Out;
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fn visit_assign_stmt(&mut self, assign: &AssignStmt) -> Self::Out;
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fn visit_lhs_expr(&mut self, lhs_expr: &LhsExpr) -> Self::Out;
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fn visit_expr(&mut self, expr: &Expr) -> Self::Out;
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fn visit_bin_expr(&mut self, expr: &BinExpr) -> Self::Out;
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fn visit_un_expr(&mut self, expr: &UnExpr) -> Self::Out;
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fn visit_call_expr(&mut self, expr: &CallExpr) -> Self::Out;
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fn visit_index_expr(&mut self, expr: &IndexExpr) -> Self::Out;
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fn visit_access_expr(&mut self, expr: &AccessExpr) -> Self::Out;
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fn visit_fun_expr(&mut self, expr: &FunExpr) -> Self::Out;
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fn visit_atom(&mut self, atom: &Atom) -> Self::Out;
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}
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/*
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copy/paste of default_accepts
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fn visit_body(&mut self, body: &Body) -> Self::Out { DefaultAccept::default_accept(body, self); }
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fn visit_stmt(&mut self, stmt: &Stmt) -> Self::Out { DefaultAccept::default_accept(stmt, self); }
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fn visit_assign_stmt(&mut self, assign: &AssignStmt) -> Self::Out { DefaultAccept::default_accept(assign, self); }
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fn visit_lhs_expr(&mut self, lhs_expr: &LhsExpr) -> Self::Out { DefaultAccept::default_accept(lhs_expr, self); }
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fn visit_expr(&mut self, expr: &Expr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_bin_expr(&mut self, expr: &BinExpr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_un_expr(&mut self, expr: &UnExpr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_call_expr(&mut self, expr: &CallExpr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_index_expr(&mut self, expr: &IndexExpr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_access_expr(&mut self, expr: &AccessExpr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_fun_expr(&mut self, expr: &FunExpr) -> Self::Out { DefaultAccept::default_accept(expr, self); }
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fn visit_atom(&mut self, atom: &Atom) -> Self::Out { DefaultAccept(atom, self); }
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*/
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