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phases: remove excessive optimization from newheads() (issue5939)...
phases: remove excessive optimization from newheads() (issue5939) This function is intended to compute 'heads(::heads - roots::)', but it failed because 'heads + parents(roots)' missed sibling branches of the roots. That's why the public heads slipped down from D to B in the example added by 2a227782e754 "tests: add test demonstrating phase loss when cloning": > E draft > |\Z draft > | Y draft > D | public > | X draft > C/ public > B public > A public where heads = {E, Z}, roots = {X}
Yuya Nishihara -
r38704:88efb7d6 default
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/ mercurial / thirdparty / cbor
cbor2
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This library provides encoding and decoding for the Concise Binary Object Representation (CBOR) (RFC 7049) serialization format.

There exists another Python CBOR implementation (cbor) which is faster on CPython due to its C extensions. On PyPy, cbor2 and cbor are almost identical in performance. The other implementation also lacks documentation and a comprehensive test suite, does not support most standard extension tags and is known to crash (segfault) when passed a cyclic structure (say, a list containing itself).