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Diffstat (limited to 'gcc/cp/cp-tree.def')
| -rw-r--r-- | gcc/cp/cp-tree.def | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/cp/cp-tree.def b/gcc/cp/cp-tree.def index e6e90f76c02..b01bcb1214e 100644 --- a/gcc/cp/cp-tree.def +++ b/gcc/cp/cp-tree.def @@ -432,6 +432,26 @@ DEFTREECODE (EXPR_PACK_EXPANSION, "expr_pack_expansion", tcc_expression, 3) index is a machine integer. */ DEFTREECODE (ARGUMENT_PACK_SELECT, "argument_pack_select", tcc_exceptional, 0) +/* Fold expressions allow the expansion of a template argument pack + over a binary operator. + + FOLD_EXPR_MOD_P is true when the fold operation is a compound assignment + operator. + + FOLD_EXPR_OP is an INTEGER_CST storing the tree code for the folded + expression. Note that when FOLDEXPR_MOD_P is true, the operator is + a compound assignment operator for that kind of expression. + + FOLD_EXPR_PACK is an expression containing an unexpanded parameter pack; + when expanded, each term becomes an argument of the folded expression. + + In a BINARY_FOLD_EXPRESSION, FOLD_EXPR_INIT is the non-pack argument. */ +DEFTREECODE (UNARY_LEFT_FOLD_EXPR, "unary_left_fold_expr", tcc_expression, 2) +DEFTREECODE (UNARY_RIGHT_FOLD_EXPR, "unary_right_fold_expr", tcc_expression, 2) +DEFTREECODE (BINARY_LEFT_FOLD_EXPR, "binary_left_fold_expr", tcc_expression, 3) +DEFTREECODE (BINARY_RIGHT_FOLD_EXPR, "binary_right_fold_expr", tcc_expression, 3) + + /** C++ extensions. */ /* Represents a trait expression during template expansion. */ |