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Hide implementation details of TokenText

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This commit is contained in:
Dawer 2021-05-06 10:07:06 +05:00
parent d9b4ac8128
commit 0a156c80af
2 changed files with 20 additions and 8 deletions
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4
crates/syntax/src/ast/node_ext.rs
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@ -40,8 +40,8 @@ fn text_of_first_token(node: &SyntaxNode) -> TokenText<'_> {
}
match node.green() {
Cow::Borrowed(green_ref) => TokenText::Borrowed(first_token(green_ref).text()),
Cow::Owned(green) => TokenText::Owned(first_token(&green).to_owned()),
Cow::Borrowed(green_ref) => TokenText::borrowed(first_token(green_ref).text()),
Cow::Owned(green) => TokenText::owned(first_token(&green).to_owned()),
}
}

24
crates/syntax/src/token_text.rs
View file

@ -2,16 +2,28 @@
use std::{cmp::Ordering, fmt, ops};
pub enum TokenText<'a> {
use rowan::GreenToken;
pub struct TokenText<'a>(pub(crate) Repr<'a>);
pub(crate) enum Repr<'a> {
Borrowed(&'a str),
Owned(rowan::GreenToken),
Owned(GreenToken),
}
impl<'a> TokenText<'a> {
pub(crate) fn borrowed(text: &'a str) -> Self {
TokenText(Repr::Borrowed(text))
}
pub(crate) fn owned(green: GreenToken) -> Self {
TokenText(Repr::Owned(green))
}
impl TokenText<'_> {
pub fn as_str(&self) -> &str {
match self {
TokenText::Borrowed(it) => *it,
TokenText::Owned(green) => green.text(),
match self.0 {
Repr::Borrowed(it) => it,
Repr::Owned(ref green) => green.text(),
}
}
}