8000 Sync section 25.7 with Python/compile.c by erlend-aasland · Pull Request #672 · python/devguide · GitHub
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Sync section 25.7 with Python/compile.c #672

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Merged
merged 2 commits into from
Jun 4, 2021
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Sync section 25.7 with Python/compile.c #672

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Sync section 25.7 'AST to CFG to Bytecode' with Python/compile.c
Apr 4, 2021
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Apr 4, 2021
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18 changes: 14 additions & 4 deletions compiler.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -285,6 +285,12 @@ Emission of bytecode is handled by the following macros:

``ADDOP(struct compiler *, int)``
add a specified opcode
``ADDOP_NOLINE(struct compiler *, int)``
like ``ADDOP`` without a line number; used for artificial opcodes without
no corresponding token in the source code
``ADDOP_IN_SCOPE(struct compiler *, int)``
like ``ADDOP``, but also exits current scope; used for adding return value
opcodes in lambdas and closures
``ADDOP_I(struct compiler *, int, Py_ssize_t)``
add an opcode that takes an integer argument
``ADDOP_O(struct compiler *, int, PyObject *, TYPE)``
Expand All @@ -305,10 +311,14 @@ Emission of bytecode is handled by the following macros:
position of the specified PyObject in the consts table.
``ADDOP_LOAD_CONST_NEW(struct compiler *, PyObject *)``
just like ``ADDOP_LOAD_CONST_NEW``, but steals a reference to PyObject
``ADDOP_JABS(struct compiler *, int, basicblock *)``
create an absolute jump to a basic block
``ADDOP_JREL(struct compiler *, int, basicblock *)``
create a relative jump to a basic block
``ADDOP_JUMP(struct compiler *, int, basicblock *)``
create a jump to a basic block
``ADDOP_JUMP_NOLINE(struct compiler *, int, basicblock *)``
like ``ADDOP_JUMP`` without a line number; used for artificial jumps
without no corresponding token in the source code.
``ADDOP_JUMP_COMPARE(struct compiler *, cmpop_ty)``
depending on the second argument, add an ``ADDOP_I`` with either an
``IS_OP``, ``CONTAINS_OP``, or ``COMPARE_OP`` opcode.

Several helper functions that will emit bytecode and are named
:samp:`compiler_{xx}()` where *xx* is what the function helps with (``list``,
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