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Diffstat (limited to 'crates/syntax/src/ast/token_ext.rs')
-rw-r--r--crates/syntax/src/ast/token_ext.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/crates/syntax/src/ast/token_ext.rs b/crates/syntax/src/ast/token_ext.rs
index d9223e8216..e1a9f3ac03 100644
--- a/crates/syntax/src/ast/token_ext.rs
+++ b/crates/syntax/src/ast/token_ext.rs
@@ -201,6 +201,10 @@ pub trait IsString: AstToken {
None
}
}
+ fn map_offset_down(&self, offset: TextSize) -> Option<TextSize> {
+ let contents_range = self.text_range_between_quotes()?;
+ offset.checked_sub(contents_range.start())
+ }
}
impl IsString for ast::String {