We can only borrow JS<T> from rooted things, so it's safe to deref it.
The only types that provide mutable JS<T> things are MutHeap<JS<T>> and
MutNullableHeap<JS<T>>, which don't actually expose that they contain
JS<T> values.
Travis CI building cleanup, enable caching
The only reason the Dockerfile was introduced is because the default
machines that Travis uses are based on Ubuntu 12.04, which has some very
old incompatible dependencies with Servo. Docker allowed use to use a
new version of Ubuntu, allowing us to compile with ease. I just learned
that they are currently beta testing 14.04 support:
http://docs.travis-ci.com/user/trusty-ci-environment/
This commit updates our Travis config to remove our dependency on Docker
and just build directly on the images, reducing some complexity and also
overhead of downloading Docker images.
In addition, this commit also enables caching of the .servo and .cargo
directories on Travis in an attempt to reduce build times.
http://docs.travis-ci.com/user/caching/#Arbitrary-directories
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added spec link for type mapping
Hi. added some of the spec links, that i could understand from the spec. Please mention if anything else needs to be added.
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Z-index should be ignored for non-positioned stacking contexts
When a stacking-context is not positioned, its z-index should be
ignored. This is per CSS 2 9.9.1. The only exception to this is when
the z-index is applied to an element with display: flex | inline-flex.
inline-flex does not appear to be implemented at this time so we only
do this for flex.
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When a stacking-context is not positioned, its z-index should be
ignored. This is per CSS 2 9.9.1. The only exception to this is when
the z-index is applied to an element with display: flex | inline-flex.
inline-flex does not appear to be implemented at this time so we only
do this for flex.
Fix uses of JS<T> as a type on the stack
`JS<T>` belongs on the heap, and only on the heap. This is a collection of fixes so that code uses either `Root<T>` or `&T` to pass around garbage-collected pointers.
Ideally, we could completely ban constructing a `JS<T>` outside of constructor functions, but we aren't quite there yet.
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