use crate::expand::{AstFragment, AstFragmentKind};
-
use rustc_ast as ast;
use rustc_ast::mut_visit::*;
use rustc_ast::ptr::P;
+use rustc_data_structures::fx::FxHashMap;
use rustc_span::source_map::DUMMY_SP;
use rustc_span::symbol::Ident;
-
use smallvec::{smallvec, SmallVec};
-
-use rustc_data_structures::fx::FxHashMap;
+use thin_vec::ThinVec;
pub fn placeholder(
kind: AstFragmentKind,
) -> AstFragment {
fn mac_placeholder() -> P<ast::MacCall> {
P(ast::MacCall {
- path: ast::Path { span: DUMMY_SP, segments: Vec::new(), tokens: None },
+ path: ast::Path { span: DUMMY_SP, segments: ThinVec::new(), tokens: None },
args: P(ast::MacArgs::Empty),
prior_type_ascription: None,
})