ILSpy

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Author	SHA1	Message	Date
Siegfried Pammer	a9c4f6c6bb	Report a call as unresolvable when nothing matched at all Overload resolution reports no error for an empty candidate set - there is no best candidate to attach one to - so the null result passed for success and was dereferenced while checking the call target. Decompiling FSharp.DataFrame from nuget.org crashes that way: F# compiles its comparison members to instance methods carrying operator metadata names, and the operator candidate search looks at the operand types rather than at the receiver type the member belongs to. The new fixture pins that such an assembly decompiles at all. It still renders those instance methods as operators and drops the receiver at the call sites, which is the misclassification behind the empty candidate set and is handled separately; this is the guard that keeps an empty candidate set from being read as a resolved call. Assisted-by: Claude:claude-opus-5:Claude Code	1 month ago

Author

SHA1

Message

Date

Siegfried Pammer

a9c4f6c6bb

Report a call as unresolvable when nothing matched at all

Overload resolution reports no error for an empty candidate set - there is
no best candidate to attach one to - so the null result passed for success
and was dereferenced while checking the call target. Decompiling
FSharp.DataFrame from nuget.org crashes that way: F# compiles its comparison
members to instance methods carrying operator metadata names, and the
operator candidate search looks at the operand types rather than at the
receiver type the member belongs to.

The new fixture pins that such an assembly decompiles at all. It still
renders those instance methods as operators and drops the receiver at the
call sites, which is the misclassification behind the empty candidate set
and is handled separately; this is the guard that keeps an empty candidate
set from being read as a resolved call.

Assisted-by: Claude:claude-opus-5:Claude Code

1 month ago

1 Commits (5d3bb2e031f3dcf7687fcd3a8219ca50901fb41c)