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Extend support for from __future__ import nested_scopes

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If a module has a future statement enabling nested scopes, they are
also enable for the exec statement and the functions compile() and
execfile() if they occur in the module.

If Python is run with the -i option, which enters interactive mode
after executing a script, and the script it runs enables nested
scopes, they are also enabled in interactive mode.

XXX The use of -i with -c "from __future__ import nested_scopes" is
not supported.  What's the point?

To support these changes, many function variants have been added to
pythonrun.c.  All the variants names end with Flags and they take an
extra PyCompilerFlags * argument.  It is possible that this complexity
will be eliminated in a future version of the interpreter in which
nested scopes are not optional.
This commit is contained in:
Jeremy Hylton 2001-03-22 02:47:58 +00:00
parent 061d106a0f
commit bc32024769
5 changed files with 133 additions and 19 deletions
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13
Include/pythonrun.h
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@ -26,12 +26,17 @@ DL_IMPORT(void) Py_EndInterpreter(PyThreadState *);
DL_IMPORT(int) PyRun_AnyFile(FILE *, char *);
DL_IMPORT(int) PyRun_AnyFileEx(FILE *, char *, int);
DL_IMPORT(int) PyRun_AnyFileFlags(FILE *, char *, PyCompilerFlags *);
DL_IMPORT(int) PyRun_AnyFileExFlags(FILE *, char *, int, PyCompilerFlags *);
DL_IMPORT(int) PyRun_SimpleString(char *);
DL_IMPORT(int) PyRun_SimpleFile(FILE *, char *);
DL_IMPORT(int) PyRun_SimpleFileEx(FILE *, char *, int);
DL_IMPORT(int) PyRun_SimpleFileExFlags(FILE *, char *, int, PyCompilerFlags *);
DL_IMPORT(int) PyRun_InteractiveOne(FILE *, char *);
DL_IMPORT(int) PyRun_InteractiveOneFlags(FILE *, char *, PyCompilerFlags *);
DL_IMPORT(int) PyRun_InteractiveLoop(FILE *, char *);
DL_IMPORT(int) PyRun_InteractiveLoopFlags(FILE *, char *, PyCompilerFlags *);
DL_IMPORT(struct _node *) PyParser_SimpleParseString(char *, int);
DL_IMPORT(struct _node *) PyParser_SimpleParseFile(FILE *, char *, int);
@ -40,8 +45,16 @@ DL_IMPORT(PyObject *) PyRun_String(char *, int, PyObject *, PyObject *);
DL_IMPORT(PyObject *) PyRun_File(FILE *, char *, int, PyObject *, PyObject *);
DL_IMPORT(PyObject *) PyRun_FileEx(FILE *, char *, int,
PyObject *, PyObject *, int);
DL_IMPORT(PyObject *) PyRun_StringFlags(char *, int, PyObject *, PyObject *,
PyCompilerFlags *);
DL_IMPORT(PyObject *) PyRun_FileFlags(FILE *, char *, int, PyObject *,
PyObject *, PyCompilerFlags *);
DL_IMPORT(PyObject *) PyRun_FileExFlags(FILE *, char *, int, PyObject *,
PyObject *, int, PyCompilerFlags *);
DL_IMPORT(PyObject *) Py_CompileString(char *, char *, int);
DL_IMPORT(PyObject *) Py_CompileStringFlags(char *, char *, int,
PyCompilerFlags *);
DL_IMPORT(struct symtable *) Py_SymtableString(char *, char *, int);
DL_IMPORT(void) PyErr_Print(void);