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Don't bail on parse errors in macro input for builtin expansion

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This commit is contained in:
Lukas Wirth 2021-09-20 00:22:30 +02:00
parent b02027d4fe
commit e7e87fc69d
2 changed files with 18 additions and 4 deletions
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5
crates/mbe/src/syntax_bridge.rs
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@ -90,7 +90,7 @@ pub fn parse_to_token_tree(text: &str) -> Option<(tt::Subtree, TokenMap)> {
Some((subtree, conv.id_alloc.map))
}
/// Split token tree with seperate expr: $($e:expr)SEP*
/// Split token tree with separate expr: $($e:expr)SEP*
pub fn parse_exprs_with_sep(tt: &tt::Subtree, sep: char) -> Vec<tt::Subtree> {
if tt.token_trees.is_empty() {
return Vec::new();
@ -101,9 +101,6 @@ pub fn parse_exprs_with_sep(tt: &tt::Subtree, sep: char) -> Vec<tt::Subtree> {
while iter.peek_n(0).is_some() {
let expanded = iter.expect_fragment(ParserEntryPoint::Expr);
if expanded.err.is_some() {
break;
}
res.push(match expanded.value {
None => break,