From c24ea08644279224a7a8be419648261f9566c9b3 Mon Sep 17 00:00:00 2001 From: Neil Schemenauer Date: Fri, 22 Mar 2002 23:53:36 +0000 Subject: Disable the parser hacks that enabled the "yield" keyword using a future statement. --- Include/parsetok.h | 2 ++ Parser/parser.h | 2 ++ Parser/parsetok.c | 6 ++++++ Python/ceval.c | 2 ++ Python/pythonrun.c | 24 +++++++++++++----------- 5 files changed, 25 insertions(+), 11 deletions(-) diff --git a/Include/parsetok.h b/Include/parsetok.h index 66359d42..bfe9f8f 100644 --- a/Include/parsetok.h +++ b/Include/parsetok.h @@ -17,7 +17,9 @@ typedef struct { int expected; } perrdetail; +#if 0 #define PyPARSE_YIELD_IS_KEYWORD 0x0001 +#endif extern DL_IMPORT(node *) PyParser_ParseString(char *, grammar *, int, perrdetail *); diff --git a/Parser/parser.h b/Parser/parser.h index b0c9a1e..95ec247 100644 --- a/Parser/parser.h +++ b/Parser/parser.h @@ -25,7 +25,9 @@ typedef struct { stack p_stack; /* Stack of parser states */ grammar *p_grammar; /* Grammar to use */ node *p_tree; /* Top of parse tree */ +#if 0 /* future keyword */ int p_generators; /* 1 if yield is a keyword */ +#endif } parser_state; parser_state *PyParser_New(grammar *g, int start); diff --git a/Parser/parsetok.c b/Parser/parsetok.c index ed4fe7b..472b0f5 100644 --- a/Parser/parsetok.c +++ b/Parser/parsetok.c @@ -83,8 +83,10 @@ PyParser_ParseFileFlags(FILE *fp, char *filename, grammar *g, int start, /* Parse input coming from the given tokenizer structure. Return error code. */ +#if 0 /* future keyword */ static char yield_msg[] = "%s:%d: Warning: 'yield' will become a reserved keyword in the future\n"; +#endif static node * parsetok(struct tok_state *tok, grammar *g, int start, perrdetail *err_ret, @@ -99,8 +101,10 @@ parsetok(struct tok_state *tok, grammar *g, int start, perrdetail *err_ret, err_ret->error = E_NOMEM; return NULL; } +#if 0 /* future keyword */ if (flags & PyPARSE_YIELD_IS_KEYWORD) ps->p_generators = 1; +#endif for (;;) { char *a, *b; @@ -130,6 +134,7 @@ parsetok(struct tok_state *tok, grammar *g, int start, perrdetail *err_ret, strncpy(str, a, len); str[len] = '\0'; +#if 0 /* future keyword */ /* Warn about yield as NAME */ if (type == NAME && !ps->p_generators && len == 5 && str[0] == 'y' && strcmp(str, "yield") == 0) @@ -137,6 +142,7 @@ parsetok(struct tok_state *tok, grammar *g, int start, perrdetail *err_ret, err_ret->filename==NULL ? "" : err_ret->filename, tok->lineno); +#endif if ((err_ret->error = PyParser_AddToken(ps, (int)type, str, tok->lineno, diff --git a/Python/ceval.c b/Python/ceval.c index ec62350..5e67b29 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -2984,10 +2984,12 @@ PyEval_MergeCompilerFlags(PyCompilerFlags *cf) result = 1; cf->cf_flags |= compilerflags; } +#if 0 /* future keyword */ if (codeflags & CO_GENERATOR_ALLOWED) { result = 1; cf->cf_flags |= CO_GENERATOR_ALLOWED; } +#endif } return result; } diff --git a/Python/pythonrun.c b/Python/pythonrun.c index ad92004..64418e4 100644 --- a/Python/pythonrun.c +++ b/Python/pythonrun.c @@ -542,6 +542,15 @@ PyRun_InteractiveOne(FILE *fp, char *filename) return PyRun_InteractiveOneFlags(fp, filename, NULL); } +/* compute parser flags based on compiler flags */ +#if 0 /* future keyword */ +#define PARSER_FLAGS(flags) \ + (((flags) && (flags)->cf_flags & CO_GENERATOR_ALLOWED) ? \ + PyPARSE_YIELD_IS_KEYWORD : 0) +#else +#define PARSER_FLAGS(flags) 0 +#endif + int PyRun_InteractiveOneFlags(FILE *fp, char *filename, PyCompilerFlags *flags) { @@ -568,9 +577,7 @@ PyRun_InteractiveOneFlags(FILE *fp, char *filename, PyCompilerFlags *flags) } n = PyParser_ParseFileFlags(fp, filename, &_PyParser_Grammar, Py_single_input, ps1, ps2, &err, - (flags && - flags->cf_flags & CO_GENERATOR_ALLOWED) ? - PyPARSE_YIELD_IS_KEYWORD : 0); + PARSER_FLAGS(flags)); Py_XDECREF(v); Py_XDECREF(w); if (n == NULL) { @@ -1031,9 +1038,7 @@ PyRun_StringFlags(char *str, int start, PyObject *globals, PyObject *locals, PyCompilerFlags *flags) { return run_err_node(PyParser_SimpleParseStringFlags( - str, start, - (flags && flags->cf_flags & CO_GENERATOR_ALLOWED) ? - PyPARSE_YIELD_IS_KEYWORD : 0), + str, start, PARSER_FLAGS(flags)), "", globals, locals, flags); } @@ -1050,8 +1055,7 @@ PyRun_FileExFlags(FILE *fp, char *filename, int start, PyObject *globals, PyObject *locals, int closeit, PyCompilerFlags *flags) { node *n = PyParser_SimpleParseFileFlags(fp, filename, start, - (flags && flags->cf_flags & CO_GENERATOR_ALLOWED) ? - PyPARSE_YIELD_IS_KEYWORD : 0); + PARSER_FLAGS(flags)); if (closeit) fclose(fp); return run_err_node(n, filename, globals, locals, flags); @@ -1125,9 +1129,7 @@ Py_CompileStringFlags(char *str, char *filename, int start, { node *n; PyCodeObject *co; - n = PyParser_SimpleParseStringFlags(str, start, - (flags && flags->cf_flags & CO_GENERATOR_ALLOWED) ? - PyPARSE_YIELD_IS_KEYWORD : 0); + n = PyParser_SimpleParseStringFlags(str, start, PARSER_FLAGS(flags)); if (n == NULL) return NULL; co = PyNode_CompileFlags(n, filename, flags); -- cgit v0.12