Allow multiple levels of breakpoint command with options

[st0012]

Your proposal

Allow nesting commands like this:

debugger(do: "break Foo#initialize do: (watch @ivar do: pp self)")

Or even:

debugger(do: {
  "break Foo#initialize" => {
    do: { "watch @ivar" => { do: "pp self" } }
  },
  "catch MyError" => { do: "bt 20" }
})

This will allow users to write a simple script, place it at one place (e.g. a Rails controller), and execute the entire debugging process without any automatically.

Right now it's not possible because the debugger assumes do: or pre: options only have 1 level of action.

[ko1]

This request is, allowing "break do:" with debug commands, not Ruby expression, right?

[st0012]

Sorry, I don't understand the question. I want to allow break do: in another break do: if that's what you're asking.

Currently this works:

debugger(do: "break Foo#initialize do: watch @ivar")

But this doesn't work because the debugger doesn't know how to parse the later do:.

debugger(do: "break Foo#initialize do: watch @ivar do: pp self")

[ko1]

Ah, I see. I misunderstood the current do: spec. To introduce parens we need to introduce parser to analyze the commands and we need to consider the syntax more.