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[C++ PATCH] overloaded operator fns [4/N]

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https://gcc.gnu.org/ml/gcc-patches/2017-10/msg02362.html
	* lex.c (init_operators): Allow NULL operator name.  Don't add
	special cases.
	* operators.def: Use NULL for mangling only operators.  Move to
	after regular operators but move assignment operators last.

From-SVN: r254276
This commit is contained in:
Nathan Sidwell 2017-10-31 18:29:08 +00:00 committed by Nathan Sidwell
parent 8e02e8a0a5
commit 6ff16d19d2
3 changed files with 27 additions and 60 deletions
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5
gcc/cp/ChangeLog
View File

@ -1,5 +1,10 @@
2017-10-31 Nathan Sidwell <nathan@acm.org>
* lex.c (init_operators): Allow NULL operator name. Don't add
special cases.
* operators.def: Use NULL for mangling only operators. Move to
after regular operators but move assignment operators last.
* cp-tree.h (enum ovl_op_flags): New.
(struct operator_name_info_t): Rename arity to flags.
* lex.c (set_operator_ident): New.

44
gcc/cp/lex.c
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@ -143,48 +143,14 @@ init_operators (void)
oni->name = NAME; \
oni->mangled_name = MANGLING; \
oni->flags = FLAGS; \
identifier = set_operator_ident (oni); \
\
if (KIND != cik_simple_op || !IDENTIFIER_ANY_OP_P (identifier)) \
set_identifier_kind (identifier, KIND);
if (NAME) { \
identifier = set_operator_ident (oni); \
if (KIND != cik_simple_op || !IDENTIFIER_ANY_OP_P (identifier)) \
set_identifier_kind (identifier, KIND); \
}
#include "operators.def"
#undef DEF_OPERATOR
operator_name_info[(int) TYPE_EXPR] = operator_name_info[(int) CAST_EXPR];
operator_name_info[(int) ERROR_MARK].identifier
= get_identifier ("<invalid operator>");
/* Handle some special cases. These operators are not defined in
the language, but can be produced internally. We may need them
for error-reporting. (Eventually, we should ensure that this
does not happen. Error messages involving these operators will
be confusing to users.) */
operator_name_info [(int) INIT_EXPR].name
= operator_name_info [(int) MODIFY_EXPR].name;
operator_name_info [(int) EXACT_DIV_EXPR].name = "(ceiling /)";
operator_name_info [(int) CEIL_DIV_EXPR].name = "(ceiling /)";
operator_name_info [(int) FLOOR_DIV_EXPR].name = "(floor /)";
operator_name_info [(int) ROUND_DIV_EXPR].name = "(round /)";
operator_name_info [(int) CEIL_MOD_EXPR].name = "(ceiling %)";
operator_name_info [(int) FLOOR_MOD_EXPR].name = "(floor %)";
operator_name_info [(int) ROUND_MOD_EXPR].name = "(round %)";
operator_name_info [(int) ABS_EXPR].name = "abs";
operator_name_info [(int) TRUTH_AND_EXPR].name = "strict &&";
operator_name_info [(int) TRUTH_OR_EXPR].name = "strict ||";
operator_name_info [(int) RANGE_EXPR].name = "...";
operator_name_info [(int) UNARY_PLUS_EXPR].name = "+";
assignment_operator_name_info [(int) EXACT_DIV_EXPR].name = "(exact /=)";
assignment_operator_name_info [(int) CEIL_DIV_EXPR].name = "(ceiling /=)";
assignment_operator_name_info [(int) FLOOR_DIV_EXPR].name = "(floor /=)";
assignment_operator_name_info [(int) ROUND_DIV_EXPR].name = "(round /=)";
assignment_operator_name_info [(int) CEIL_MOD_EXPR].name = "(ceiling %=)";
assignment_operator_name_info [(int) FLOOR_MOD_EXPR].name = "(floor %=)";
assignment_operator_name_info [(int) ROUND_MOD_EXPR].name = "(round %=)";
}
/* Initialize the reserved words. */

38
gcc/cp/operators.def
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@ -100,13 +100,6 @@ DEF_SIMPLE_OPERATOR ("alignof", ALIGNOF_EXPR, "az", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", OVL_OP_FLAG_UNARY)
/* The cast operators. */
DEF_SIMPLE_OPERATOR ("", CAST_EXPR, "cv", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("dynamic_cast", DYNAMIC_CAST_EXPR, "dc", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("reinterpret_cast", REINTERPRET_CAST_EXPR, "rc", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("const_cast", CONST_CAST_EXPR, "cc", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("static_cast", STATIC_CAST_EXPR, "sc", OVL_OP_FLAG_UNARY)
/* Binary operators. */
DEF_SIMPLE_OPERATOR ("+", PLUS_EXPR, "pl", OVL_OP_FLAG_BINARY)
DEF_SIMPLE_OPERATOR ("-", MINUS_EXPR, "mi", OVL_OP_FLAG_BINARY)
@ -133,8 +126,23 @@ DEF_SIMPLE_OPERATOR ("->", COMPONENT_REF, "pt", OVL_OP_FLAG_BINARY)
DEF_SIMPLE_OPERATOR ("[]", ARRAY_REF, "ix", OVL_OP_FLAG_BINARY)
DEF_SIMPLE_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", OVL_OP_FLAG_BINARY)
DEF_SIMPLE_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", OVL_OP_FLAG_BINARY)
/* This one is needed for mangling. */
DEF_SIMPLE_OPERATOR ("::", SCOPE_REF, "sr", OVL_OP_FLAG_BINARY)
/* Miscellaneous. */
DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR ("()", CALL_EXPR, "cl", OVL_OP_FLAG_NONE)
/* Operators needed for mangling. */
DEF_SIMPLE_OPERATOR (NULL, CAST_EXPR, "cv", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, DYNAMIC_CAST_EXPR, "dc", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, REINTERPRET_CAST_EXPR, "rc", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, CONST_CAST_EXPR, "cc", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, STATIC_CAST_EXPR, "sc", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, SCOPE_REF, "sr", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, EXPR_PACK_EXPANSION, "sp", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, UNARY_LEFT_FOLD_EXPR, "fl", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, UNARY_RIGHT_FOLD_EXPR, "fr", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, BINARY_LEFT_FOLD_EXPR, "fL", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR (NULL, BINARY_RIGHT_FOLD_EXPR, "fR", OVL_OP_FLAG_NONE)
/* Assignment operators. */
DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS", OVL_OP_FLAG_BINARY)
@ -149,15 +157,3 @@ DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO", OVL_OP_FLAG_BINARY)
DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS", OVL_OP_FLAG_BINARY)
DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS", OVL_OP_FLAG_BINARY)
/* Ternary operators. */
DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", OVL_OP_FLAG_NONE)
/* Miscellaneous. */
DEF_SIMPLE_OPERATOR ("()", CALL_EXPR, "cl", OVL_OP_FLAG_NONE)
/* Variadic templates extension. */
DEF_SIMPLE_OPERATOR ("...", EXPR_PACK_EXPANSION, "sp", OVL_OP_FLAG_UNARY)
DEF_SIMPLE_OPERATOR ("... +", UNARY_LEFT_FOLD_EXPR, "fl", OVL_OP_FLAG_BINARY)
DEF_SIMPLE_OPERATOR ("+ ...", UNARY_RIGHT_FOLD_EXPR, "fr", OVL_OP_FLAG_BINARY)
DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_LEFT_FOLD_EXPR, "fL", OVL_OP_FLAG_NONE)
DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_RIGHT_FOLD_EXPR, "fR", OVL_OP_FLAG_NONE)