767546 - WebIDLError should take a list of locations

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, defect)

Description

[Boris Zbarsky [:bzbarsky]]

Right now we pass one location directly and the rest in a list.  That's kinda hacky; we should just pass a list.

Will wait for Peter to land unions before doing this...

Comment 1

[Boris Zbarsky [:bzbarsky]]

Attachment: Make the WebIDLError constructor take a list of locations.

Comment 2

[Justin Lebar (not reading bugmail)]

> class WebIDLError(Exception):
>-    def __init__(self, message, location, warning=False, extraLocations=[]):
>+    def __init__(self, message, locations, warning=False):
>         self.message = message
>-        self.location = location
>+        self.locations = [str(loc) for loc in locations]
>         self.warning = warning
>-        self.extraLocations = [str(loc) for loc in extraLocations]

Hm, this may have been a good opportunity to use Python's *arg syntax:

  def __init__(self, message, *locations):

There may be a way to shim the warning=False arg into there (although I don't see how that would work), but we could also have WebIDLError and WebIDLWarning as separate classes.

OTOH the list is totally clear, and I don't think we have to mess with this further unless you want to.

> class BuiltinLocation(object):
>     def __init__(self, text):
>-        self.msg = text
>+        self.msg = text + "\n"

To make sure I understood why you did this: You want BuiltinLocation to have an extra blank line to match Location's _pointerline marker?

Comment 3

[Boris Zbarsky [:bzbarsky]]

> You want BuiltinLocation to have an extra blank line to match Location's _pointerline
> marker?

Hmm.  I added it because stuff was ending up on the same line to my eyes, but yes, looks like that's the main effect.

Comment 4

[Boris Zbarsky [:bzbarsky]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/f44dce601af6

Comment 5

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/f44dce601af6