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Auto merge of #13228 - Manishearth:uncompute, r=heycam

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Add uncompute functionality (WIP)

As discussed in Taipei we plan to do animations in Stylo on the Rust side. For cascading properly, we need to "uncompute" these,
i.e. convert them into a cascadeable specified value which when computed gets us the same thing again.

This patch starts work on this. Before writing uncompute code for everything, I'd like to check that this is an acceptable amount of mako magic,
and that the general design is okay (to avoid having to rewrite everything once it's done).

Preliminary r? @SimonSapin @birtles

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This commit is contained in:
bors-servo 2016-09-22 23:14:48 -05:00 • committed by GitHub
commit fb52bb7c8d
19 changed files with 576 additions and 50 deletions
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4
tests/unit/style/properties/serialization.rs
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@ -742,7 +742,7 @@ mod shorthand_serialization {
let size = single_vec_variant_value!(size,
size::single_value::SpecifiedValue::Explicit(
size::single_value::SpecifiedExplicitSize {
size::single_value::ExplicitSize {
width: LengthOrPercentageOrAuto::Length(Length::from_px(70f32)),
height: LengthOrPercentageOrAuto::Length(Length::from_px(50f32))
}
@ -797,7 +797,7 @@ mod shorthand_serialization {
let size = single_vec_variant_value!(size,
size::single_value::SpecifiedValue::Explicit(
size::single_value::SpecifiedExplicitSize {
size::single_value::ExplicitSize {
width: LengthOrPercentageOrAuto::Length(Length::from_px(70f32)),
height: LengthOrPercentageOrAuto::Length(Length::from_px(50f32))
}