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bh=OmxW2VsTFqDRYZLn59agkwATkdUHDyMDRS7MSkgG8Yc=; b=MZ2Qrwo6tfEnjqkKOVtx7fK/rE hflQG0weryeHn465jtNtyPsRC88vwcta/FzJ9EJp0gkJrFPZLhDzWu1TAX4K2b9Srs8282ta1/LO6 fnBQxEQlKpqWGyVOVvTFIF7wL; Received: from 97-122-81-39.hlrn.qwest.net ([97.122.81.39]:60410 helo=localhost.localdomain) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1kvSHY-0029f3-7p for gdb-patches@sourceware.org; Fri, 01 Jan 2021 14:48:24 -0700 From: Tom Tromey To: gdb-patches@sourceware.org Subject: [PATCH 120/203] Introduce unop_cast_type_operation Date: Fri, 1 Jan 2021 14:46:00 -0700 Message-Id: <20210101214723.1784144-121-tom@tromey.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210101214723.1784144-1-tom@tromey.com> References: <20210101214723.1784144-1-tom@tromey.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.81.39 X-Source-L: No X-Exim-ID: 1kvSHY-0029f3-7p X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-81-39.hlrn.qwest.net (localhost.localdomain) [97.122.81.39]:60410 X-Source-Auth: tom+tromey.com X-Email-Count: 121 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces@sourceware.org Sender: "Gdb-patches" This adds class unop_cast_type_operation, which implements UNOP_CAST_TYPE. gdb/ChangeLog 2021-01-01 Tom Tromey * expop.h (class unop_cast_type_operation): New. * ax-gdb.c (unop_cast_type_operation::do_generate_ax): New method. --- gdb/ChangeLog | 6 ++++++ gdb/ax-gdb.c | 12 ++++++++++++ gdb/expop.h | 31 +++++++++++++++++++++++++++++++ 3 files changed, 49 insertions(+) diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c index 84887da524f..e0970e87d68 100644 --- a/gdb/ax-gdb.c +++ b/gdb/ax-gdb.c @@ -2661,6 +2661,18 @@ assign_modify_operation::do_generate_ax (struct expression *exp, "may not assign to it"), name); } +void +unop_cast_type_operation::do_generate_ax (struct expression *exp, + struct agent_expr *ax, + struct axs_value *value, + struct type *cast_type) +{ + struct value *val + = std::get<0> (m_storage)->evaluate (nullptr, exp, + EVAL_AVOID_SIDE_EFFECTS); + std::get<1> (m_storage)->generate_ax (exp, ax, value, value_type (val)); +} + } /* This handles the middle-to-right-side of code generation for binary diff --git a/gdb/expop.h b/gdb/expop.h index 664812aec19..9102f2bb66d 100644 --- a/gdb/expop.h +++ b/gdb/expop.h @@ -1853,6 +1853,37 @@ class unop_cast_operation override; }; +/* A cast, but the type comes from an expression, not a "struct + type". */ +class unop_cast_type_operation + : public maybe_constant_operation +{ +public: + + using maybe_constant_operation::maybe_constant_operation; + + value *evaluate (struct type *expect_type, + struct expression *exp, + enum noside noside) override + { + value *val = std::get<0> (m_storage)->evaluate (nullptr, exp, + EVAL_AVOID_SIDE_EFFECTS); + return std::get<1> (m_storage)->evaluate_for_cast (value_type (val), + exp, noside); + } + + enum exp_opcode opcode () const override + { return UNOP_CAST_TYPE; } + +protected: + + void do_generate_ax (struct expression *exp, + struct agent_expr *ax, + struct axs_value *value, + struct type *cast_type) + override; +}; + } /* namespace expr */ #endif /* EXPOP_H */ -- 2.26.2