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use quote::{Tokens, ToTokens};
pub enum Fragment {
Expr(Tokens),
Block(Tokens),
}
macro_rules! quote_expr {
($($tt:tt)*) => {
$crate::fragment::Fragment::Expr(quote!($($tt)*))
}
}
macro_rules! quote_block {
($($tt:tt)*) => {
$crate::fragment::Fragment::Block(quote!($($tt)*))
}
}
pub struct Expr(pub Fragment);
impl ToTokens for Expr {
fn to_tokens(&self, out: &mut Tokens) {
match self.0 {
Fragment::Expr(ref expr) => expr.to_tokens(out),
Fragment::Block(ref block) => {
out.append("{");
block.to_tokens(out);
out.append("}");
}
}
}
}
pub struct Stmts(pub Fragment);
impl ToTokens for Stmts {
fn to_tokens(&self, out: &mut Tokens) {
match self.0 {
Fragment::Expr(ref expr) => expr.to_tokens(out),
Fragment::Block(ref block) => block.to_tokens(out),
}
}
}
pub struct Match(pub Fragment);
impl ToTokens for Match {
fn to_tokens(&self, out: &mut Tokens) {
match self.0 {
Fragment::Expr(ref expr) => {
expr.to_tokens(out);
out.append(",");
}
Fragment::Block(ref block) => {
out.append("{");
block.to_tokens(out);
out.append("}");
}
}
}
}