How should we define C++ specifiers

[ahayzen-kdab]

Problem

As we generate C++ methods we need to sometimes add C++ specifiers to them (eg override, final, virtual etc).

How should we specify this in the Rust attribute ? And which should we support ?

Specifiers

• override
• virtual
• final

It appears that virtual, override, final cannot be combined ? But would there be other specifiers we would want to combine ? As if there is only

Could also have

• explicit (only needed for constructors?)
• friend (more complicated if it has the signature as well)
• inline (can our Rust methods even be inline?)
• ... and others?

Attribute

• As a key-value ?
  • #[qinvokable(cxx_specifier = "override")]
  • If we can only have one specifier this might be a good solution
• As list items ?
  • #[qinvokable(override)]
  • #[qinvokable(override, return_cxx_type = "QColor")]
  • This would need changes to the attribute parser to support key-values with no value

[ahayzen-kdab]

As list items