[Chicago] AST constructure
djuber at gmail.com
Sun May 5 16:45:32 CEST 2013
Having never looked too deeply into this my answer might be wrong, but
the line right after the define you found is
expr_ty _Py_GeneratorExp(expr_ty elt, asdl_seq * generators, int lineno, int
col_offset, PyArena *arena);
So it looks like it's just an expr_ty. The relevant parts of the
which is buried inside _expr definition.
At the top of the file expr_ty is pointer to struct _expr, which is
basically a union type of all the possible expressions, plus an
expr_kind flag to identify the contents.
In my copy of the header, that definition starts around line 187.
FWIW, I was looking through a 3.3.1 copy of the source tree, but it may
be similar in 2.x
On 5/5/13 7:35 AM, shangyu wrote:
> Hi dear all,
> I'm reading Python source code and know there is a transition from CST
> to AST . Python will call some kind of function which convert the CST
> node to a AST node , for example , in function ast_for_itercomp there
> is a call to GeneratorExp . The latter is a macro point to
> #define GeneratorExp(a0, a1, a2, a3, a4) _Py_GeneratorExp(a0, a1, a2,
> a3, a4)
> I can't go further more because I can't find out the difinition of
> _Py_GeneratorExp ,
> so , where is the _Py_GeneratorExp ? Thanks in advance !
> Chicago mailing list
> Chicago at python.org
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