From 929f3aa7425dde2626bdf5b23277aee62ec75129 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Mon, 8 Mar 2021 07:27:57 -0700 Subject: [PATCH] Introduce typeid_operation This adds class typeid_operation, which implements OP_TYPEID. gdb/ChangeLog 2021-03-08 Tom Tromey * expop.h (class typeid_operation): New. --- gdb/ChangeLog | 4 ++++ gdb/expop.h | 29 +++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 5f9e2bc70cc..fb0eea2ee86 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2021-03-08 Tom Tromey + + * expop.h (class typeid_operation): New. + 2021-03-08 Tom Tromey * expop.h (class decltype_operation): New. diff --git a/gdb/expop.h b/gdb/expop.h index 183137805f9..804f51654b2 100644 --- a/gdb/expop.h +++ b/gdb/expop.h @@ -1517,6 +1517,35 @@ public: { return OP_DECLTYPE; } }; +/* Implement 'typeid'. */ +class typeid_operation + : public tuple_holding_operation +{ +public: + + using tuple_holding_operation::tuple_holding_operation; + + value *evaluate (struct type *expect_type, + struct expression *exp, + enum noside noside) override + { + enum exp_opcode sub_op = std::get<0> (m_storage)->opcode (); + enum noside sub_noside + = ((sub_op == OP_TYPE || sub_op == OP_DECLTYPE || sub_op == OP_TYPEOF) + ? EVAL_AVOID_SIDE_EFFECTS + : noside); + + value *result = std::get<0> (m_storage)->evaluate (nullptr, exp, + sub_noside); + if (noside != EVAL_NORMAL) + return allocate_value (cplus_typeid_type (exp->gdbarch)); + return cplus_typeid (result); + } + + enum exp_opcode opcode () const override + { return OP_TYPEID; } +}; + } /* namespace expr */ #endif /* EXPOP_H */ -- 2.30.2