Method: Highway::Steps::Types::String#typecheck

Defined in:
lib/highway/steps/types/string.rb

#typecheck(value) ⇒ String?

Typecheck and coerce a value if possible.

This method returns a typechecked and coerced value or ‘nil` if value has invalid type and can’t be coerced.

Parameters:

  • value (Object) —

    A value.

Returns:

[View source]

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# File 'lib/highway/steps/types/string.rb', line 34

def typecheck(value)
  case value
    when ::String then value
    when ::Numeric then value.to_s
    when ::TrueClass then "true"
    when ::FalseClass then "false"
  end
end