BytedanceRPC commented on a change in pull request #2307:
URL: https://github.com/apache/thrift/pull/2307#discussion_r561562155
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File path: compiler/cpp/src/thrift/generate/t_go_generator.cc
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@@ -3439,6 +3511,123 @@ void
t_go_generator::generate_serialize_list_element(ostream& out, t_list* tlist
generate_serialize_field(out, &efield, prefix);
}
+/**
+ * Compares any type
+ */
+void t_go_generator::generate_go_equals(std::ostream& out,
+ t_type* ori_type,
+ string tgt,
+ string src) {
+
+ t_type* ttype = get_true_type(ori_type);
+ // Do nothing for void types
+ if (ttype->is_void()) {
+ throw "compiler error: cannot generate equals for void type: " + tgt;
+ }
+
+ if (ttype->is_struct() || ttype->is_xception()) {
+ generate_go_equals_struct(out, ttype, tgt, src);
+ } else if (ttype->is_container()) {
+ generate_go_equals_container(out, ttype, tgt, src);
+ } else if (ttype->is_base_type() || ttype->is_enum()) {
+ out << indent() << "if ";
+ if (ttype->is_base_type()) {
+ t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base();
+ switch (tbase) {
+ case t_base_type::TYPE_VOID:
+ throw "compiler error: cannot equals void: " + tgt;
+ break;
+
+ case t_base_type::TYPE_STRING:
+ if (ttype->is_binary()) {
+ out << "bytes.Compare(" << tgt << ", " << src << ") != 0";
+ } else {
+ out << tgt << " != " << src;
+ }
+ break;
+
+ case t_base_type::TYPE_BOOL:
+ case t_base_type::TYPE_I8:
+ case t_base_type::TYPE_I16:
+ case t_base_type::TYPE_I32:
+ case t_base_type::TYPE_I64:
+ case t_base_type::TYPE_DOUBLE:
+ out << tgt << " != " << src;
+ break;
+
+ default:
+ throw "compiler error: no Go name for base type " +
t_base_type::t_base_name(tbase);
+ }
+ } else if (ttype->is_enum()) {
+ out << tgt << " != " << src;
+ }
+
+ out << " { return false }" << endl;
+ } else {
+ throw "compiler error: Invalid type in generate_go_equals '" +
ttype->get_name() + "' for '"
+ + tgt + "'";
+ }
+}
+
+void t_go_generator::generate_go_equals_guard(std::ostream& out, string tgt,
string src) {
+ out << indent() << "if " << tgt << " == " << src << " {" << endl;
+ indent_up();
+ out << indent() << "return true" << endl;
+ indent_down();
+ out << indent() << "} else if " << tgt << " == nil || " << src << " == nil
{" << endl;
+ indent_up();
+ out << indent() << "return false" << endl;
+ indent_down();
+ out << indent() << "}" << endl;
+}
+
+/**
+ * Compares the members of a struct
+ */
+void t_go_generator::generate_go_equals_struct(std::ostream& out,
+ t_type* ttype,
+ string tgt,
+ string src) {
+ (void)ttype;
+ out << indent() << "if !" << tgt << "." << equals_method_name_ << "(" << src
+ << ") { return false }" << endl;
+}
+
+/**
+ * Compares any container type
+ */
+void t_go_generator::generate_go_equals_container(std::ostream& out,
Review comment:
Good idea, will do
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