Hixie 1a0484cc7e Improve exceptions and asserts for rendering lib. ... * Use actual exceptions rather than assertions containing code containing strings when trying to give messages to authors. * Introduce RenderingError which is an AssertionError that takes a string argument, to support the above. * Provide a BoxDimensions.hasBoundedWidth/hasBoundedHeight API. * Document BoxDimensions.isNormalized. * Provide more useful information when we assert isNormalized and find that it is false. * When finding the size is infinite, crawl the tree to figure out which render box is likely responsible for the infinite constraints. * Provide more information when size doesn't match the constraints. * Provide more information when intrinsic dimension methods violate the constraints. * Only spam a huge amount of information for the first exception from the rendering library. I've noticed a lot of people looking at the last exception printed rather than the first and that's very misleading -- after the rendering library hits an exception, all bets are off regarding what'll happen in the future. All kinds of asserts might fire. * Improve docs around the debug methods and flags for the above. * Make Block default to have no children. Previously, giving no children crashed with a confusing message about a null deref in an assert.		2016-02-05 13:55:40 -08:00
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sector_layout.dart	Improve exceptions and asserts for rendering lib.	2016-02-05 13:55:40 -08:00
solid_color_box.dart	PointerInput refactor	2015-12-04 22:42:38 -08:00