Fix inconsistent symbol mangling of integers constants with -Zverbose #94359
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| //[v0]~| ERROR demangling-alt(<c::Signed<-152>>::f) | ||
| //[legacy]~^^^^ ERROR symbol-name(_ZN1c22Signed$LT$.152_i16$GT$ | ||
| //[legacy]~| ERROR demangling(c::Signed<.152_i16>::f:: | ||
| //[legacy]~| ERROR demangling-alt(c::Signed<.152_i16>::f) |
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The . instead of - seems quite surprising, but preexisting. Apparently -, : and . are mangled the same way, and demangled as ..
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The existing v0 tests have been slightly adjusted for compatibility with legacy mangler, which requires an item to have an ancestor in a value namespace or a type namespace to produce a symbol for it. In v0 mangling this results in an extra `Nv` component.
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r=me with comments #94359 (comment) added. |
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The `PrettyPrinter` changes formatting of array size and integer constants based on `-Zverbose`, so its implementation cannot be used in legacy symbol mangling.
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…askrgr Rollup of 3 pull requests Successful merges: - rust-lang#94359 (Fix inconsistent symbol mangling of integers constants with -Zverbose) - rust-lang#94465 (6 - Make more use of `let_chains`) - rust-lang#94470 (:arrow_up: rust-analyzer) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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The
PrettyPrinterchanges formatting of array size and integerconstants based on
-Zverbose, so its implementation cannot be used inlegacy symbol mangling.
Example symbol demangling before changes: