Enable Source Action 'Override/Implement Methods' with prompt

[testforstephen]

Signed-off-by: Jinbo Wang [email protected]

It uses quick pick to list all possibles overridable methods from super types. And select the unimplemented methods by default.

[fbricon]

ideally it should be Select methods to override or implement in <Type>, as when you're in an anonymous class, within a top level class, it's pretty confusing to know which type will receive the implemented methods.

[fbricon]

Probably need a OverridableMethodsResponse object, that'd contain:

• type: String
• methods: OverridableMethod[]

that type can be displayed in the quickpick placeholder

[testforstephen]

@fbricon @yaohaizh updated.

[fbricon]

If you try to override/implement methods on an anonymous class, say Runnable:

• dialog mentions top level class (should be Anonymous Runnable)
• no method from Runnable is selectable
• all methods are added to top level class, instead of the Anonymous one

[testforstephen]

In VSCode 1.30.1 (2018 November), CodeActionParams passed the correct cursor line in the CodeActionParams#range, so the source action is able to resolve the right covered node. The case works.

After i updated to VSCode 1.31.0 (2019 January), i reproduced the scenario you mentioned. That's because the code action didn't pass the cursor line, CodeActionParams#range always return line 0. The source action cannot get the right covered node any more.

Not sure whether it's VSCode bug.

[testforstephen]

Create an issue microsoft/vscode#68487

[fbricon]

Since the upstream issue has been fixed, we'll push this feature in the next release.