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author | Tom Tromey <tom@tromey.com> | 2021-03-08 07:27:57 -0700 |
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committer | Tom Tromey <tom@tromey.com> | 2021-03-08 07:28:28 -0700 |
commit | 5019124b1ddc3839bd8ccba08819b11c0151e8a9 (patch) | |
tree | e83820e9ee3c77bdff1892dfbc7b2664c26d0df6 /gdb/eval.c | |
parent | 2bc9b40ce16a109a22320589d2cfb9fced5fb769 (diff) | |
download | gdb-5019124b1ddc3839bd8ccba08819b11c0151e8a9.zip gdb-5019124b1ddc3839bd8ccba08819b11c0151e8a9.tar.gz gdb-5019124b1ddc3839bd8ccba08819b11c0151e8a9.tar.bz2 |
Implement the "&&" and "||" operators
This implements the "&&" and "||" operators.
gdb/ChangeLog
2021-03-08 Tom Tromey <tom@tromey.com>
* expop.h (class logical_and_operation)
(class logical_or_operation): New.
* eval.c (logical_and_operation::evaluate)
(logical_or_operation::evaluate): New methods.
* ax-gdb.c (logical_and_operation::do_generate_ax)
(logical_or_operation::do_generate_ax): New methods.
Diffstat (limited to 'gdb/eval.c')
-rw-r--r-- | gdb/eval.c | 63 |
1 files changed, 63 insertions, 0 deletions
@@ -2486,6 +2486,69 @@ multi_subscript_operation::evaluate (struct type *expect_type, gdb::make_array_view (argvec, values.size ())); } +value * +logical_and_operation::evaluate (struct type *expect_type, + struct expression *exp, + enum noside noside) +{ + value *arg1 = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); + if (noside == EVAL_SKIP) + return eval_skip_value (exp); + + value *arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, + EVAL_AVOID_SIDE_EFFECTS); + + if (binop_user_defined_p (BINOP_LOGICAL_AND, arg1, arg2)) + { + arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); + return value_x_binop (arg1, arg2, BINOP_LOGICAL_AND, OP_NULL, noside); + } + else + { + int tem = value_logical_not (arg1); + if (!tem) + { + arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); + tem = value_logical_not (arg2); + } + struct type *type = language_bool_type (exp->language_defn, + exp->gdbarch); + return value_from_longest (type, !tem); + } +} + +value * +logical_or_operation::evaluate (struct type *expect_type, + struct expression *exp, + enum noside noside) +{ + value *arg1 = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); + if (noside == EVAL_SKIP) + return eval_skip_value (exp); + + value *arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, + EVAL_AVOID_SIDE_EFFECTS); + + if (binop_user_defined_p (BINOP_LOGICAL_OR, arg1, arg2)) + { + arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); + return value_x_binop (arg1, arg2, BINOP_LOGICAL_OR, OP_NULL, noside); + } + else + { + int tem = value_logical_not (arg1); + if (tem) + { + arg2 = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); + tem = value_logical_not (arg2); + } + + struct type *type = language_bool_type (exp->language_defn, + exp->gdbarch); + return value_from_longest (type, !tem); + } +} + } struct value * |