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py: Allow to properly disable builtin "set" object.

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This patch makes MICROPY_PY_BUILTINS_SET compile-time option fully
disable the builtin set object (when set to 0).  This includes removing
set constructor/comprehension from the grammar, the compiler and the
emitters.  Now, enabling set costs 8168 bytes on unix x64, and 3576
bytes on stmhal.
This commit is contained in:
Damien George
2014-12-27 17:07:16 +00:00
parent 3b74c91684
commit e37dcaafb4
10 changed files with 37 additions and 3 deletions
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4
py/grammar.h
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@@ -287,8 +287,12 @@ DEF_RULE(exprlist_2, nc, or(2), rule(star_expr), rule(expr))
DEF_RULE(testlist, c(generic_tuple), list_with_end, rule(test), tok(DEL_COMMA))
// TODO dictorsetmaker lets through more than is allowed
DEF_RULE(dictorsetmaker, nc, and(2), rule(dictorsetmaker_item), opt_rule(dictorsetmaker_tail))
#if MICROPY_PY_BUILTINS_SET
DEF_RULE(dictorsetmaker_item, c(dictorsetmaker_item), and(2), rule(test), opt_rule(dictorsetmaker_colon))
DEF_RULE(dictorsetmaker_colon, nc, ident | and(2), tok(DEL_COLON), rule(test))
#else
DEF_RULE(dictorsetmaker_item, c(dictorsetmaker_item), and(3), rule(test), tok(DEL_COLON), rule(test))
#endif
DEF_RULE(dictorsetmaker_tail, nc, or(2), rule(comp_for), rule(dictorsetmaker_list))
DEF_RULE(dictorsetmaker_list, nc, and(2), tok(DEL_COMMA), opt_rule(dictorsetmaker_list2))
DEF_RULE(dictorsetmaker_list2, nc, list_with_end, rule(dictorsetmaker_item), tok(DEL_COMMA))