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https://github.com/python/cpython
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f2c1aa1661
Issue #26146: Add a new kind of AST node: ast.Constant. It can be used by external AST optimizers, but the compiler does not emit directly such node. An optimizer can replace the following AST nodes with ast.Constant: * ast.NameConstant: None, False, True * ast.Num: int, float, complex * ast.Str: str * ast.Bytes: bytes * ast.Tuple if items are constants too: tuple * frozenset Update code to accept ast.Constant instead of ast.Num and/or ast.Str: * compiler * docstrings * ast.literal_eval() * Tools/parser/unparse.py
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
#ifndef Py_ASDL_H
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#define Py_ASDL_H
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typedef PyObject * identifier;
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typedef PyObject * string;
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typedef PyObject * bytes;
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typedef PyObject * object;
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typedef PyObject * singleton;
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typedef PyObject * constant;
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/* It would be nice if the code generated by asdl_c.py was completely
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independent of Python, but it is a goal the requires too much work
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at this stage. So, for example, I'll represent identifiers as
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interned Python strings.
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*/
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/* XXX A sequence should be typed so that its use can be typechecked. */
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typedef struct {
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Py_ssize_t size;
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void *elements[1];
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} asdl_seq;
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typedef struct {
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Py_ssize_t size;
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int elements[1];
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} asdl_int_seq;
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asdl_seq *_Py_asdl_seq_new(Py_ssize_t size, PyArena *arena);
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asdl_int_seq *_Py_asdl_int_seq_new(Py_ssize_t size, PyArena *arena);
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#define asdl_seq_GET(S, I) (S)->elements[(I)]
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#define asdl_seq_LEN(S) ((S) == NULL ? 0 : (S)->size)
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#ifdef Py_DEBUG
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#define asdl_seq_SET(S, I, V) \
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do { \
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Py_ssize_t _asdl_i = (I); \
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assert((S) != NULL); \
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assert(_asdl_i < (S)->size); \
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(S)->elements[_asdl_i] = (V); \
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} while (0)
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#else
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#define asdl_seq_SET(S, I, V) (S)->elements[I] = (V)
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#endif
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#endif /* !Py_ASDL_H */
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