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Feature #11939

Syntax sugar to apply a method replace a variable

Added by sawa (Tsuyoshi Sawada) over 4 years ago. Updated over 4 years ago.

Status:
Open
Priority:
Normal
Assignee:
-
Target version:
-
[ruby-core:72669]

Description

There is frequent use case to modify the value of a variable and keep it referred to by the same variable name. When method chaining cannot be done (for example, when the method is conditionally called), the same variable name would have to be repeated:

var = ...
var = var.some_method(some_args) if some_condition
var = ...
...

I would like to propose a syntax sugar for this kind of situation. I have two options in mind.

(1) =.

var = ...
var =.some_method(some_args) if some_condition
var = ...
...

(2) .=

var = ...
var .= some_method(some_args) if some_condition
var = ...
...

Notation (2) seems to be in line with syntax sugar like +=, but option (1) has the advantage that the period comes together with the method name.

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