Area-CompilersDocumentationhelp wanted
Métricas do repositório
- Stars
- (20.414 stars)
- Métricas de merge de PR
- (Mesclagem média 6d 17h) (256 fundiu PRs em 30d)
Description
I found the following in the C# compiler.
// SPEC OMISSION: The C# 2.0 spec had a line in it that noted that the expressions "null == null"
// SPEC OMISSION: and "null != null" were to be automatically treated as the appropriate constant;
// SPEC OMISSION: overload resolution was to be skipped. That's because a strict reading
// SPEC OMISSION: of the overload resolution spec shows that overload resolution would give an
// SPEC OMISSION: ambiguity error for this case; the expression is ambiguous between the int?,
// SPEC OMISSION: bool? and string versions of equality. This line was accidentally edited
// SPEC OMISSION: out of the C# 3 specification; we should re-insert it.
But the ECMA standard 13.11.1 covers this:
If both operands of an equality-expression are the null literal, then overload resolution is not performed and the expression evaluates to a constant value of true or false according to whether the operator is == or !=.
The comment should be corrected.