emit errors if hit any circular dependency

[huang47]

To address issue #6

[backflip]

Awesome, thanks!

[backflip]

On second thought: Should we treat this as a major change (v2.0.0) since it might break existing implementations (which for some reason rely on circular dependencies being silently ignored)?

[huang47]

good point, how about making it configurable to be backward compatible ?

config.checkCircularDependency = true | false ?

[backflip]

Good idea.
I went with the following approach:

• 1.1.0 adds a new option ignoreCircularDependencies which defaults to true (still using the old behavior)
• 2.0.0 switches its default to false (emits an error)

[huang47]

perfect (y)