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3e0055f8c6
This change implements a new bytecode compiler, based on a transformation of the parse tree to an abstract syntax defined in Parser/Python.asdl. The compiler implementation is not complete, but it is in stable enough shape to run the entire test suite excepting two disabled tests.
54 lines
1.6 KiB
C
54 lines
1.6 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 * object;
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typedef enum {false, true} bool;
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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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/* XXX We shouldn't pay for offset when we don't need APPEND. */
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typedef struct {
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int size;
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int offset;
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void *elements[1];
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} asdl_seq;
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asdl_seq *asdl_seq_new(int size);
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void asdl_seq_free(asdl_seq *);
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#ifdef Py_DEBUG
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#define asdl_seq_GET(S, I) (S)->elements[(I)]
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#define asdl_seq_SET(S, I, V) { \
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int _asdl_i = (I); \
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assert((S) && _asdl_i < (S)->size); \
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(S)->elements[_asdl_i] = (V); \
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}
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#define asdl_seq_APPEND(S, V) { \
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assert((S) && (S)->offset < (S)->size); \
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(S)->elements[(S)->offset++] = (V); \
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}
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#else
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#define asdl_seq_GET(S, I) (S)->elements[(I)]
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#define asdl_seq_SET(S, I, V) (S)->elements[I] = (V)
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#define asdl_seq_APPEND(S, V) (S)->elements[(S)->offset++] = (V)
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#endif
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#define asdl_seq_LEN(S) ((S) == NULL ? 0 : (S)->size)
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/* Routines to marshal the basic types. */
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int marshal_write_int(PyObject **, int *, int);
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int marshal_write_bool(PyObject **, int *, bool);
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int marshal_write_identifier(PyObject **, int *, identifier);
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int marshal_write_string(PyObject **, int *, string);
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int marshal_write_object(PyObject **, int *, object);
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#endif /* !Py_ASDL_H */
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