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Improve the TokenStream quoter.

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This commit is contained in:
Jeffrey Seyfried 2017-03-14 22:04:46 +00:00
parent d9cf601ae8
commit ce616a7d6a
8 changed files with 76 additions and 58 deletions
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6
src/libsyntax/tokenstream.rs
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@ -162,6 +162,12 @@ impl From<TokenTree> for TokenStream {
}
}
impl From<Token> for TokenStream {
fn from(token: Token) -> TokenStream {
TokenTree::Token(DUMMY_SP, token).into()
}
}
impl<T: Into<TokenStream>> iter::FromIterator<T> for TokenStream {
fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Self {
TokenStream::concat(iter.into_iter().map(Into::into).collect::<Vec<_>>())