Proposal: "first" option for `indent/MemberExpression`

Tell us about your environment

• ESLint Version: 4.8.0
• Node Version: 8.6.0
• npm Version: yarn-1.1.0

What parser (default, Babel-ESLint, etc.) are you using? default

What rule do you want to change? indent

Does this change cause the rule to produce more or fewer warnings? nope

How will the change be implemented? (New option, new default behavior, etc.)? Option { "MemberExpression": "first" } will allow member expressions to be indented just as the first member expression.

Please provide some example code that this change will affect:

foo.bar
   .baz
   .qux

What does the rule currently do for this code? Depends on configuration, but .baz & .qux are indented by fixed number of spaces.

What will the rule do after it’s changed? .baz & .qux will be indented as shown, i. e. dots before member name will be on the same column.

[AlexandreBonneau]

About the simplest cases:

// 1)
this.someObject.someMethod()
               .someOtherMethod();
someObject.someMethod()
          .someOtherMethod();

or

// 2)
this.someObject.someMethod()
    .someOtherMethod()

it seems to me that 1) is the most used case, and that if the alignment should be on the very first dot, then 2) could/should be reformatted to:

// 2b)
this.someObject
    .someMethod()
    .someOtherMethod();

[platinumazure]

Sounds good to me. I’ll champion.

@eslint/eslint-team Any 👍s for this proposal?