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Title: bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. by markshannon · Pull Request #5071 · python/cpython · GitHub

Open Graph Title: bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. by markshannon · Pull Request #5071 · python/cpython

X Title: bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. by markshannon · Pull Request #5071 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: See bpo-17611 for detailed discussion. This PR: Handles stack unwinding in the compiler rather than the interpreter, getting rid of "pseudo exceptions". Deletes a number of overly compli...

X Description: See bpo-17611 for detailed discussion. This PR: Handles stack unwinding in the compiler rather than the interpreter, getting rid of "pseudo exceptions". Deletes a number of overl...

Opengraph URL: https://github.com/python/cpython/pull/5071

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bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler.https://github.com/python/cpython/pull/5071/commits#top
markshannonhttps://github.com/markshannon
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Add JUMP_FINALLY/END_FINALLY bytecodes to implement JSR-style finally block handling.https://github.com/python/cpython/pull/5071/commits/79d87aa8e2e65355c74786432012bffe61f908ce
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Remove WITH_CLEANUP_START and WITH_CLEANUP_FINISH bytecodes.https://github.com/python/cpython/pull/5071/commits/ec6fbd66a3d2189452131b7fe29f062787cb96b7
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Remove WITH_EXCEPT_FINISH bytecode.https://github.com/python/cpython/pull/5071/commits/8e874795781b928b1b24d49585aa0c3a75db44e6
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Add test to verify that unwinding in the compiler works for nested finally blocks. Potential bug pointed out by Neil Schemenauer.https://github.com/python/cpython/pull/5071/commits/37191f690dec123213df3a567a0f7527b0f90be5
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Add SETUP_WITH bytecode to push a block with stack offset of -1. Used for correct compiliation of with statement.https://github.com/python/cpython/pull/5071/commits/f37efd02226f205885722cfe2702e947ee8a3e2c
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Combine all 'type's of try-block handlers. Remove SETUP_FINALLY bytecode as it is now fully synonymous with SETUP_EXCEPT.https://github.com/python/cpython/pull/5071/commits/fc358448eb1ea96b2e534cf2762e1492184acae0
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Tidy up compile.chttps://github.com/python/cpython/pull/5071/commits/15357860dff212e205fecba0fe0444b56b872424
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Rename ENTER_WITH to BEGIN_WITH for consistency with BEFORE_ASYNC_WITH.https://github.com/python/cpython/pull/5071/commits/ef9623aac6bf4eb082479e08af1368d0faefbe25
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Update stack depth calculation to account for new style of finally blocks. Fixes bpo-24340.https://github.com/python/cpython/pull/5071/commits/400d574ab5bbbffaf14ec54f4f00f7a8387358d9
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