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diff --git a/libcc1/marshall-cp.hh b/libcc1/marshall-cp.hh
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+/* Marshalling and unmarshalling of C++-specific types.
+ Copyright (C) 2014-2017 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef CC1_PLUGIN_MARSHALL_CXX_HH
+#define CC1_PLUGIN_MARSHALL_CXX_HH
+
+#include "marshall.hh"
+#include "gcc-cp-interface.h"
+
+namespace cc1_plugin
+{
+ status
+ unmarshall (connection *conn, enum gcc_cp_symbol_kind *result)
+ {
+ protocol_int p;
+ if (!unmarshall_intlike (conn, &p))
+ return FAIL;
+ *result = (enum gcc_cp_symbol_kind) p;
+ return OK;
+ }
+
+ status
+ unmarshall (connection *conn, enum gcc_cp_oracle_request *result)
+ {
+ protocol_int p;
+ if (!unmarshall_intlike (conn, &p))
+ return FAIL;
+ *result = (enum gcc_cp_oracle_request) p;
+ return OK;
+ }
+
+ status
+ unmarshall (connection *conn, enum gcc_cp_qualifiers *result)
+ {
+ protocol_int p;
+ if (!unmarshall_intlike (conn, &p))
+ return FAIL;
+ *result = (enum gcc_cp_qualifiers) p;
+ return OK;
+ }
+
+ status
+ unmarshall (connection *conn, enum gcc_cp_ref_qualifiers *result)
+ {
+ protocol_int p;
+ if (!unmarshall_intlike (conn, &p))
+ return FAIL;
+ *result = (enum gcc_cp_ref_qualifiers) p;
+ return OK;
+ }
+
+ // Send a gcc_vbase_array marker followed by the array.
+ status
+ marshall (connection *conn, const gcc_vbase_array *a)
+ {
+ size_t len;
+
+ if (a)
+ len = a->n_elements;
+ else
+ len = (size_t)-1;
+
+ if (!marshall_array_start (conn, 'v', len))
+ return FAIL;
+
+ if (!a)
+ return OK;
+
+ if (!marshall_array_elmts (conn, len * sizeof (a->elements[0]),
+ a->elements))
+ return FAIL;
+
+ return marshall_array_elmts (conn, len * sizeof (a->flags[0]),
+ a->flags);
+ }
+
+ // Read a gcc_vbase_array marker, followed by a gcc_vbase_array. The
+ // resulting array must be freed by the caller, using 'delete[]' on
+ // elements and virtualp, and 'delete' on the array object itself.
+ status
+ unmarshall (connection *conn, struct gcc_vbase_array **result)
+ {
+ size_t len;
+
+ if (!unmarshall_array_start (conn, 'v', &len))
+ return FAIL;
+
+ if (len == (size_t)-1)
+ {
+ *result = NULL;
+ return OK;
+ }
+
+ struct gcc_vbase_array *gva = new gcc_vbase_array;
+
+ gva->n_elements = len;
+ gva->elements = new gcc_type[len];
+
+ if (!unmarshall_array_elmts (conn,
+ len * sizeof (gva->elements[0]),
+ gva->elements))
+ {
+ delete[] gva->elements;
+ delete gva;
+ return FAIL;
+ }
+
+ gva->flags = new enum gcc_cp_symbol_kind[len];
+
+ if (!unmarshall_array_elmts (conn,
+ len * sizeof (gva->flags[0]),
+ gva->flags))
+ {
+ delete[] gva->flags;
+ delete[] gva->elements;
+ delete gva;
+ return FAIL;
+ }
+
+ *result = gva;
+ return OK;
+ }
+
+ // Send a gcc_cp_template_args marker followed by the array.
+ status
+ marshall (connection *conn, const gcc_cp_template_args *a)
+ {
+ size_t len;
+
+ if (a)
+ len = a->n_elements;
+ else
+ len = (size_t)-1;
+
+ if (!marshall_array_start (conn, 't', len))
+ return FAIL;
+
+ if (!a)
+ return OK;
+
+ if (!marshall_array_elmts (conn, len * sizeof (a->kinds[0]),
+ a->kinds))
+ return FAIL;
+
+ return marshall_array_elmts (conn, len * sizeof (a->elements[0]),
+ a->elements);
+ }
+
+ // Read a gcc_vbase_array marker, followed by a gcc_vbase_array. The
+ // resulting array must be freed by the caller, using 'delete[]' on
+ // elements and virtualp, and 'delete' on the array object itself.
+ status
+ unmarshall (connection *conn, struct gcc_cp_template_args **result)
+ {
+ size_t len;
+
+ if (!unmarshall_array_start (conn, 't', &len))
+ return FAIL;
+
+ if (len == (size_t)-1)
+ {
+ *result = NULL;
+ return OK;
+ }
+
+ struct gcc_cp_template_args *gva = new gcc_cp_template_args;
+
+ gva->n_elements = len;
+ gva->kinds = new char[len];
+
+ if (!unmarshall_array_elmts (conn,
+ len * sizeof (gva->kinds[0]),
+ gva->kinds))
+ {
+ delete[] gva->kinds;
+ delete gva;
+ return FAIL;
+ }
+
+ gva->elements = new gcc_cp_template_arg[len];
+
+ if (!unmarshall_array_elmts (conn,
+ len * sizeof (gva->elements[0]),
+ gva->elements))
+ {
+ delete[] gva->elements;
+ delete[] gva->kinds;
+ delete gva;
+ return FAIL;
+ }
+
+ *result = gva;
+ return OK;
+ }
+
+ // Send a gcc_cp_function_args marker followed by the array.
+ status
+ marshall (connection *conn, const gcc_cp_function_args *a)
+ {
+ size_t len;
+
+ if (a)
+ len = a->n_elements;
+ else
+ len = (size_t)-1;
+
+ if (!marshall_array_start (conn, 'd', len))
+ return FAIL;
+
+ if (!a)
+ return OK;
+
+ return marshall_array_elmts (conn, len * sizeof (a->elements[0]),
+ a->elements);
+ }
+
+ // Read a gcc_cp_function_args marker, followed by a
+ // gcc_cp_function_args. The resulting array must be freed
+ // by the caller, using 'delete[]' on elements and virtualp, and
+ // 'delete' on the array object itself.
+ status
+ unmarshall (connection *conn, struct gcc_cp_function_args **result)
+ {
+ size_t len;
+
+ if (!unmarshall_array_start (conn, 'd', &len))
+ return FAIL;
+
+ if (len == (size_t)-1)
+ {
+ *result = NULL;
+ return OK;
+ }
+
+ struct gcc_cp_function_args *gva = new gcc_cp_function_args;
+
+ gva->n_elements = len;
+ gva->elements = new gcc_expr[len];
+
+ if (!unmarshall_array_elmts (conn,
+ len * sizeof (gva->elements[0]),
+ gva->elements))
+ {
+ delete[] gva->elements;
+ delete gva;
+ return FAIL;
+ }
+
+ *result = gva;
+
+ return OK;
+ }
+}
+
+#endif // CC1_PLUGIN_MARSHALL_CP_HH
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