Capture and preserve source line numbers.

amcgregor commented 8 years ago

Contributing work towards #4 and #12.

amcgregor commented 8 years ago

As examples, the cinje.std.htmlmodule during testing gave back pretty line number results of:

__mapping__ = [0, 2, 3, 4, 5, 6, 6, 6, 6, 6, 6, 6, 7, 8, 9, 10, 11, 12, 13, 14, 14, 14, 14, 14, 15, 15, 16, 17, 17,
        19, 20, 21, 22, 23, 23, 23, 23, 23, 24, 25, 25, 25, 25, 25, 28, 29, 29, 29, 29, 29, 31, 32, 32, 32, 32, 32,
        34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 38, 39, 40, 41, 42, 43, 43, 43, 43, 43, 44, 46, 47, 47, 47, 47,
        47, 49, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 53, 54, 55, 56, 57, 58, 59, 61, 61, 61, 61, 61, 62, 62, 63,
        63, 63, 64, 64, 65, 66, 66, 67, 68, 68, 68, 68, 69, 69, 69, 69, 69, 69, 70, 71, 72, 72, 73, 73, 73, 73, 73,
        73, 73, 75, 76, 77, 78, 79, 79, 79, 79, 79, 80, 80, 80, 80, 80, 80, 80, 81, 81, 81, 81, 81, 81, 82, 82, 82,
        82, 82, 82, 84, 85, 86, 87, 87, 87, 87, 87, 88, 88, 88, 88, 88, 89, 89, 89, 89, 89, 89, 90, 90, 90, 90, 90,
        90, 92, 93, 94, 95, 95, 95, 95, 95, 96, 96, 96, 96, 96, 97, 98, 99, 100, 102, 102, 102, 102, 102, 102, 104,
        105, 106, 107, 107, 107, 107, 107, 108, 108, 108, 108, 108, 108, 109, 110, 111, 112, 114, 114, 114, 114, 114,
        114, 114, 114, 114, 114, 116, 117, 118, 119, 119, 119, 119, 119, 120, 120, 120, 120, 120, 120, 120, 120, 120,
        120, 120, 120, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 136, 136, 136, 136, 136, 137, 137,
        137, 137, 137, 137, 138, 139, 140, 140, 140, 140, 141, 141, 141, 141, 143, 144, 145, 145, 145, 145, 145, 148,
        148, 148, 148, 148, 148, 148, 148, 148, 148, 150, 150, 150]

While the compressed representation takes up less than 9% of the space:

__gzmapping__ = rb"""c${@mK@I>Q2txY*pKFFjYjI!-DlIS;kO(2`)uFx3Bbmn7a*utypib&;PDf>`vNS!%m~Q=zin?XfU(d3IaV@H*zTj*C6JsX;mj"""

amcgregor commented 8 years ago

Minor reduction (by one line) in coverage acceptable.

marrow / cinje

Capture and preserve source line numbers. #16