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Make tt generic over the span data

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This commit is contained in:
Lukas Wirth 2023-01-31 11:49:49 +01:00
parent d805c74c51
commit 41a46a78f2
48 changed files with 806 additions and 569 deletions
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18
crates/hir-expand/src/fixup.rs
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@ -9,7 +9,7 @@ use syntax::{
ast::{self, AstNode, HasLoopBody},
match_ast, SyntaxElement, SyntaxKind, SyntaxNode, TextRange,
};
use tt::Subtree;
use tt::token_id::Subtree;
/// The result of calculating fixes for a syntax node -- a bunch of changes
/// (appending to and replacing nodes), the information that is needed to
@ -297,9 +297,11 @@ pub(crate) fn reverse_fixups(
tt.token_trees = tts
.into_iter()
.filter(|tt| match tt {
tt::TokenTree::Leaf(leaf) => token_map.synthetic_token_id(leaf.id()) != Some(EMPTY_ID),
tt::TokenTree::Leaf(leaf) => {
token_map.synthetic_token_id(*leaf.span()) != Some(EMPTY_ID)
}
tt::TokenTree::Subtree(st) => {
st.delimiter.map_or(true, |d| token_map.synthetic_token_id(d.id) != Some(EMPTY_ID))
token_map.synthetic_token_id(st.delimiter.open) != Some(EMPTY_ID)
}
})
.flat_map(|tt| match tt {
@ -308,9 +310,9 @@ pub(crate) fn reverse_fixups(
SmallVec::from_const([tt.into()])
}
tt::TokenTree::Leaf(leaf) => {
if let Some(id) = token_map.synthetic_token_id(leaf.id()) {
if let Some(id) = token_map.synthetic_token_id(*leaf.span()) {
let original = undo_info.original[id.0 as usize].clone();
if original.delimiter.is_none() {
if original.delimiter.kind == tt::DelimiterKind::Invisible {
original.token_trees.into()
} else {
SmallVec::from_const([original.into()])
@ -327,6 +329,8 @@ pub(crate) fn reverse_fixups(
mod tests {
use expect_test::{expect, Expect};
use crate::tt;
use super::reverse_fixups;
// The following three functions are only meant to check partial structural equivalence of
@ -341,7 +345,7 @@ mod tests {
}
fn check_subtree_eq(a: &tt::Subtree, b: &tt::Subtree) -> bool {
a.delimiter.map(|it| it.kind) == b.delimiter.map(|it| it.kind)
a.delimiter.kind == b.delimiter.kind
&& a.token_trees.len() == b.token_trees.len()
&& a.token_trees.iter().zip(&b.token_trees).all(|(a, b)| check_tt_eq(a, b))
}
@ -386,7 +390,7 @@ mod tests {
let (original_as_tt, _) = mbe::syntax_node_to_token_tree(&parsed.syntax_node());
assert!(
check_subtree_eq(&tt, &original_as_tt),
"different token tree: {tt:?}, {original_as_tt:?}"
"different token tree: {tt:?},\n{original_as_tt:?}"
);
}