Crystal: Parse error with escape quote inside heredoc

[Djok39]

lines 5 and 12 conflicting between themselves
https://play.crystal-lang.org/#/r/6ae2

module M1
  macro included
    def self.amberDestroyMethod : String
      <<-AMBER_DESTROY
        redirect_to action: :index, flash: {\"success\" => \"Deleted  successfully.\"}
      AMBER_DESTROY
    end

    def self.testMethod : String
      required = [] of String
      [{"1", "2", "3", "4"}].each do |name, t|
        required << "output = #{t}::None"
      end  
      required.join "\n      "
    end
  end
end   

module M2
  include M1
end

[asterite]

Reduced:

macro foo
  <<-X
  a \"
  X
end

But I don't understand what you are trying to do. Why do you use \" instead of "?

[straight-shoota]

It doesn't really matter why one would write \" instead of ", it shouldn't really matter, because in the context of a heredoc neither of them should have any specific meaning, thus both should be equivalent. This seems to be a parser bug.

[Djok39]

reducing incorrect, because removing line 12 or remove #{t} from 12th line - changes error message - two lines together reproducing original bug.
in real program, i moved self.amberDestroyMethod upper in code and bug dissapear.
and, yes - removing backslash also solves problem

why i do that - probably some kind of insanity.

[straight-shoota]

Even this fails:

macro foo # syntax error: unterminated macro
  <<-X
  "
  X
end