Style-BracesAroundHashParameters.md

Pattern: Malformed braces around hash parameter

Issue: -

Description

This rule checks for braces around the last parameter in a method call if the last parameter is a hash. It supports 3 styles:

• The braces style enforces braces around all method parameters that are hashes.

• The no_braces style checks that the last parameter doesn't have braces around it.

• The context_dependent style checks that the last parameter doesn't have braces around it, but requires braces if the second to last parameter is also a hash literal.

Examples

# bad
some_method(x, y, a: 1, b: 2)

# good
some_method(x, y, {a: 1, b: 2})

# bad
some_method(x, y, {a: 1, b: 2})

# good
some_method(x, y, a: 1, b: 2)

# bad
some_method(x, y, {a: 1, b: 2})
some_method(x, y, {a: 1, b: 2}, a: 1, b: 2)

# good
some_method(x, y, a: 1, b: 2)
some_method(x, y, {a: 1, b: 2}, {a: 1, b: 2})

Default configuration

Attribute	Value
EnforcedStyle	no_braces
SupportedStyles	braces, no_braces, context_dependent

Further Reading

• RuboCop - Style/BracesAroundHashParameters