Interpolate substition vars in the arg (i.e. $(DEFFILE))
Load extra data embed into binary format String object.
Example:
x[1] += 42
^^^ (for [])
x[1] += 42
^ (for +)
x[1] += 42
^^^^^^ (for []=)
Example:
x.foo += 42
^^^ (for foo)
x.foo += 42
^ (for +)
x.foo += 42
^^^^^^^ (for foo=)
Reset nil attributes to their default values to make the spec valid
When there is an invalid block with a keyword missing an end right before another end, it is unclear where which keyword is missing the end
Take this example:
class Dog # 1
def bark # 2
puts "woof" # 3
end # 4
However due to github.com/ruby/syntax_suggest/issues/32 the problem line will be identified as:
> class Dog # 1
Because lines 2, 3, and 4 are technically valid code and are expanded first, deemed valid, and hidden. We need to un-hide the matching end line 4. Also work backwards and if there’s a mis-matched keyword, show it too