040000 tree 8cdf4027c5459ad6c739681c6589624e1885b283	base
040000 tree 42d97f8039c5209642b66d39b13c95c93f04eca1	cache
040000 tree 16e47e51f08c6b8da0f93e01f5424a4fc2e1b607	collect
040000 tree c83eeea02a9b8fa3abbe7dfc00f0c26820aeac89	escape
040000 tree 0b8cadf8b5c7dfc3e0676c35464819b4e9dcc1c5	math
040000 tree 106672072c87d316b3238bdf1d10dd86510eaabf	primitives
040000 tree 9a4272186e1a9f0e8cf7d4cb690921b42856ae43	testing