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+/* Header file for GDB compile C++ language support.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+
+ This program 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 of the License, or
+ (at your option) any later version.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef GDB_COMPILE_CPLUS_H
+#define GDB_COMPILE_CPLUS_H
+
+#include "common/enum-flags.h"
+#include "gcc-cp-plugin.h"
+
+struct type;
+struct block;
+
+/* enum-flags wrapper */
+DEF_ENUM_FLAGS_TYPE (enum gcc_cp_qualifiers, gcc_cp_qualifiers_flags);
+DEF_ENUM_FLAGS_TYPE (enum gcc_cp_ref_qualifiers, gcc_cp_ref_qualifiers_flags);
+DEF_ENUM_FLAGS_TYPE (enum gcc_cp_symbol_kind, gcc_cp_symbol_kind_flags);
+
+class compile_cplus_instance;
+
+/* A single component of a type's scope. Type names are broken into
+ "components," a series of unqualified names comprising the type name,
+ e.g., "namespace1", "namespace2", "myclass". */
+
+struct scope_component
+{
+ /* The unqualified name of this scope. */
+ std::string name;
+
+ /* The block symbol for this type/scope. */
+ struct block_symbol bsymbol;
+};
+
+/* Comparison operators for scope_components. */
+
+bool operator== (const scope_component &lhs, const scope_component &rhs);
+bool operator!= (const scope_component &lhs, const scope_component &rhs);
+
+
+/* A single compiler scope used to define a type.
+
+ A compile_scope is a list of scope_components, where all leading
+ scope_components are namespaces, followed by a single non-namespace
+ type component (the actual type we are converting). */
+
+class compile_scope : private std::vector<scope_component>
+{
+public:
+
+ using std::vector<scope_component>::push_back;
+ using std::vector<scope_component>::pop_back;
+ using std::vector<scope_component>::back;
+ using std::vector<scope_component>::empty;
+ using std::vector<scope_component>::size;
+ using std::vector<scope_component>::begin;
+ using std::vector<scope_component>::end;
+ using std::vector<scope_component>::operator[];
+
+ compile_scope ()
+ : m_nested_type (GCC_TYPE_NONE), m_pushed (false)
+ {
+ }
+
+ /* Return the gcc_type of the type if it is a nested definition.
+ Returns GCC_TYPE_NONE if this type was not nested. */
+ gcc_type nested_type ()
+ {
+ return m_nested_type;
+ }
+
+private:
+
+ /* compile_cplus_instance is a friend class so that it can set the
+ following private members when compile_scopes are created. */
+ friend compile_cplus_instance;
+
+ /* If the type was actually a nested type, this will hold that nested
+ type after the scope is pushed. */
+ gcc_type m_nested_type;
+
+ /* If true, this scope was pushed to the compiler and all namespaces
+ must be popped when leaving the scope. */
+ bool m_pushed;
+};
+
+/* Comparison operators for compile_scopes. */
+
+bool operator== (const compile_scope &lhs, const compile_scope &rhs);
+bool operator!= (const compile_scope &lhs, const compile_scope &rhs);
+
+/* Convert TYPENAME into a vector of namespace and top-most/super
+ composite scopes.
+
+ For example, for the input "Namespace::classB::classInner", the
+ resultant vector will contain the tokens "Namespace" and
+ "classB". */
+
+compile_scope type_name_to_scope (const char *type_name,
+ const struct block *block);
+
+/* A callback suitable for use as the GCC C++ symbol oracle. */
+
+extern gcc_cp_oracle_function gcc_cplus_convert_symbol;
+
+/* A callback suitable for use as the GCC C++ address oracle. */
+
+extern gcc_cp_symbol_address_function gcc_cplus_symbol_address;
+
+/* A subclass of compile_instance that is specific to the C++ front
+ end. */
+
+class compile_cplus_instance : public compile_instance
+{
+public:
+
+ explicit compile_cplus_instance (struct gcc_cp_context *gcc_cp)
+ : compile_instance (&gcc_cp->base, m_default_cflags),
+ m_plugin (gcc_cp)
+ {
+ m_plugin.set_callbacks (gcc_cplus_convert_symbol,
+ gcc_cplus_symbol_address,
+ gcc_cplus_enter_scope, gcc_cplus_leave_scope,
+ this);
+ }
+
+ /* Convert a gdb type, TYPE, to a GCC type.
+
+ If this type was defined in another type, NESTED_ACCESS should indicate
+ the accessibility of this type (or GCC_CP_ACCESS_NONE if not a nested
+ type). GCC_CP_ACCESS_NONE is the default nested access.
+
+ The new GCC type is returned. */
+ gcc_type convert_type
+ (struct type *type,
+ enum gcc_cp_symbol_kind nested_access = GCC_CP_ACCESS_NONE);
+
+ /* Return a handle for the GCC plug-in. */
+ gcc_cp_plugin &plugin () { return m_plugin; }
+
+ /* Factory method to create a new scope based on TYPE with name TYPE_NAME.
+ [TYPE_NAME could be TYPE_NAME or SYMBOL_NATURAL_NAME.]
+
+ If TYPE is a nested or local definition, nested_type () will return
+ the gcc_type of the conversion.
+
+ Otherwise, nested_type () is GCC_TYPE_NONE. */
+ compile_scope new_scope (const char *type_name, struct type *type);
+
+ /* Enter the given NEW_SCOPE. */
+ void enter_scope (compile_scope &scope);
+
+ /* Leave the current scope. */
+ void leave_scope ();
+
+ /* Add the qualifiers given by QUALS to BASE. */
+ gcc_type convert_qualified_base (gcc_type base,
+ gcc_cp_qualifiers_flags quals);
+
+ /* Convert TARGET into a pointer type. */
+ gcc_type convert_pointer_base (gcc_type target);
+
+ /* Convert BASE into a reference type. RQUALS describes the reference. */
+ gcc_type convert_reference_base (gcc_type base,
+ enum gcc_cp_ref_qualifiers rquals);
+
+ /* Return the declaration name of the symbol named NATURAL.
+ This returns a name with no function arguments or template parameters,
+ suitable for passing to the compiler plug-in. */
+ static gdb::unique_xmalloc_ptr<char> decl_name (const char *natural);
+
+private:
+
+ /* Callbacks suitable for use as the GCC C++ enter/leave scope requests. */
+ static gcc_cp_enter_leave_user_expr_scope_function gcc_cplus_enter_scope;
+ static gcc_cp_enter_leave_user_expr_scope_function gcc_cplus_leave_scope;
+
+ /* Default compiler flags for C++. */
+ static const char *m_default_cflags;
+
+ /* The GCC plug-in. */
+ gcc_cp_plugin m_plugin;
+
+ /* A list of scopes we are processing. */
+ std::vector<compile_scope> m_scopes;
+};
+
+/* Get the access flag for the NUM'th method of TYPE's FNI'th
+ fieldlist. */
+
+enum gcc_cp_symbol_kind get_method_access_flag (const struct type *type,
+ int fni, int num);
+
+#endif /* GDB_COMPILE_CPLUS_H */