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Diffstat (limited to 'compiler/rustc_parse/src/parser')
| -rw-r--r-- | compiler/rustc_parse/src/parser/mod.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 05758fe0624..6a3c4a0c106 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -238,6 +238,7 @@ impl NodeRange { // is the position of the function's start token. This gives // `NodeRange(10..15)`. fn new(ParserRange(parser_range): ParserRange, start_pos: u32) -> NodeRange { + assert!(parser_range.start >= start_pos && parser_range.end >= start_pos); NodeRange((parser_range.start - start_pos)..(parser_range.end - start_pos)) } } |