[gnome-builder] langserv: add symbol tree support to langserv symbol resolver
- From: Christian Hergert <chergert src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-builder] langserv: add symbol tree support to langserv symbol resolver
- Date: Tue, 25 Oct 2016 22:44:02 +0000 (UTC)
commit 30a986defca66daf589b9b7d6e8e07ae1d7c20be
Author: Christian Hergert <chergert redhat com>
Date: Tue Oct 25 04:51:08 2016 -0700
langserv: add symbol tree support to langserv symbol resolver
We still need to implement the Tree portion of this (right now it is a
flattened list), but that should be easy enough based on the container
type (for languages that support it).
libide/Makefile.am | 6 +
libide/langserv/ide-langserv-symbol-node-private.h | 37 +++++
libide/langserv/ide-langserv-symbol-node.c | 171 ++++++++++++++++++++
libide/langserv/ide-langserv-symbol-node.h | 32 ++++
libide/langserv/ide-langserv-symbol-resolver.c | 167 +++++++++++++++++++
libide/langserv/ide-langserv-symbol-tree-private.h | 30 ++++
libide/langserv/ide-langserv-symbol-tree.c | 124 ++++++++++++++
libide/langserv/ide-langserv-symbol-tree.h | 32 ++++
8 files changed, 599 insertions(+), 0 deletions(-)
---
diff --git a/libide/Makefile.am b/libide/Makefile.am
index 8621892..acbecca 100644
--- a/libide/Makefile.am
+++ b/libide/Makefile.am
@@ -72,7 +72,9 @@ libide_1_0_la_public_headers = \
langserv/ide-langserv-client.h \
langserv/ide-langserv-completion-provider.h \
langserv/ide-langserv-diagnostic-provider.h \
+ langserv/ide-langserv-symbol-node.h \
langserv/ide-langserv-symbol-resolver.h \
+ langserv/ide-langserv-symbol-tree.h \
local/ide-local-device.h \
logging/ide-log.h \
plugins/ide-extension-adapter.h \
@@ -245,7 +247,11 @@ libide_1_0_la_public_sources = \
langserv/ide-langserv-client.c \
langserv/ide-langserv-completion-provider.c \
langserv/ide-langserv-diagnostic-provider.c \
+ langserv/ide-langserv-symbol-node.c \
+ langserv/ide-langserv-symbol-node-private.h \
langserv/ide-langserv-symbol-resolver.c \
+ langserv/ide-langserv-symbol-tree.c \
+ langserv/ide-langserv-symbol-tree-private.h \
local/ide-local-device.c \
logging/ide-log.c \
plugins/ide-extension-adapter.c \
diff --git a/libide/langserv/ide-langserv-symbol-node-private.h
b/libide/langserv/ide-langserv-symbol-node-private.h
new file mode 100644
index 0000000..8482672
--- /dev/null
+++ b/libide/langserv/ide-langserv-symbol-node-private.h
@@ -0,0 +1,37 @@
+/* ide-langserv-symbol-node-private.h
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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 IDE_LANGSERV_SYMBOL_NODE_PRIVATE_H
+#define IDE_LANGSERV_SYMBOL_NODE_PRIVATE_H
+
+#include "ide-langserv-symbol-node.h"
+
+G_BEGIN_DECLS
+
+IdeLangservSymbolNode *ide_langserv_symbol_node_new (GFile *file,
+ const gchar *name,
+ const gchar *parent_name,
+ gint kind,
+ guint begin_line,
+ guint begin_column,
+ guint end_line,
+ guint end_column);
+
+G_END_DECLS
+
+#endif /* IDE_LANGSERV_SYMBOL_NODE_PRIVATE_H */
diff --git a/libide/langserv/ide-langserv-symbol-node.c b/libide/langserv/ide-langserv-symbol-node.c
new file mode 100644
index 0000000..b35885c
--- /dev/null
+++ b/libide/langserv/ide-langserv-symbol-node.c
@@ -0,0 +1,171 @@
+/* ide-langserv-symbol-node.c
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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/>.
+ */
+
+#define G_LOG_DOMAIN "ide-langserv-symbol-node"
+
+#include "ide-debug.h"
+
+#include "diagnostics/ide-source-location.h"
+#include "files/ide-file.h"
+#include "langserv/ide-langserv-symbol-node.h"
+
+typedef struct
+{
+ GFile *file;
+ gchar *parent_name;
+ IdeSymbolKind kind;
+ struct {
+ guint line;
+ guint column;
+ } begin, end;
+} IdeLangservSymbolNodePrivate;
+
+struct _IdeLangservSymbolNode
+{
+ IdeSymbolNode parent_instance;
+};
+
+G_DEFINE_TYPE_WITH_PRIVATE (IdeLangservSymbolNode, ide_langserv_symbol_node, IDE_TYPE_SYMBOL_NODE)
+
+static void
+ide_langserv_symbol_node_get_location_async (IdeSymbolNode *node,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ IdeLangservSymbolNode *self = (IdeLangservSymbolNode *)node;
+ IdeLangservSymbolNodePrivate *priv = ide_langserv_symbol_node_get_instance_private (self);
+ g_autoptr(GTask) task = NULL;
+ g_autoptr(IdeFile) ifile = NULL;
+ g_autoptr(IdeSourceLocation) location = NULL;
+
+ IDE_ENTRY;
+
+ g_assert (IDE_IS_LANGSERV_SYMBOL_NODE (node));
+
+ task = g_task_new (self, cancellable, callback, user_data);
+ g_task_set_source_tag (task, ide_langserv_symbol_node_get_location_async);
+
+ ifile = ide_file_new (NULL, priv->file);
+ location = ide_source_location_new (ifile, priv->begin.line, priv->begin.column, 0);
+
+ g_task_return_pointer (task, g_steal_pointer (&location), (GDestroyNotify)ide_source_location_unref);
+
+ IDE_EXIT;
+}
+
+static IdeSourceLocation *
+ide_langserv_symbol_node_get_location_finish (IdeSymbolNode *node,
+ GAsyncResult *result,
+ GError **error)
+{
+ IdeSourceLocation *ret;
+
+ IDE_ENTRY;
+
+ g_assert (IDE_IS_LANGSERV_SYMBOL_NODE (node));
+ g_assert (G_IS_TASK (result));
+
+ ret = g_task_propagate_pointer (G_TASK (result), error);
+
+ IDE_RETURN (ret);
+}
+
+static void
+ide_langserv_symbol_node_finalize (GObject *object)
+{
+ IdeLangservSymbolNode *self = (IdeLangservSymbolNode *)object;
+ IdeLangservSymbolNodePrivate *priv = ide_langserv_symbol_node_get_instance_private (self);
+
+ g_clear_pointer (&priv->parent_name, g_free);
+ g_clear_object (&priv->file);
+
+ G_OBJECT_CLASS (ide_langserv_symbol_node_parent_class)->finalize (object);
+}
+
+static void
+ide_langserv_symbol_node_class_init (IdeLangservSymbolNodeClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ IdeSymbolNodeClass *symbol_node_class = IDE_SYMBOL_NODE_CLASS (klass);
+
+ object_class->finalize = ide_langserv_symbol_node_finalize;
+
+ symbol_node_class->get_location_async = ide_langserv_symbol_node_get_location_async;
+ symbol_node_class->get_location_finish = ide_langserv_symbol_node_get_location_finish;
+}
+
+static void
+ide_langserv_symbol_node_init (IdeLangservSymbolNode *self)
+{
+}
+
+IdeLangservSymbolNode *
+ide_langserv_symbol_node_new (GFile *file,
+ const gchar *name,
+ const gchar *parent_name,
+ gint kind,
+ guint begin_line,
+ guint begin_column,
+ guint end_line,
+ guint end_column)
+{
+ IdeLangservSymbolNode *self;
+ IdeLangservSymbolNodePrivate *priv;
+
+ g_return_val_if_fail (G_IS_FILE (file), NULL);
+
+ switch (kind)
+ {
+ case 1: kind = IDE_SYMBOL_FILE; break;
+ case 2: kind = IDE_SYMBOL_MODULE; break;
+ case 3: kind = IDE_SYMBOL_NAMESPACE; break;
+ case 4: kind = IDE_SYMBOL_PACKAGE; break;
+ case 5: kind = IDE_SYMBOL_CLASS; break;
+ case 6: kind = IDE_SYMBOL_METHOD; break;
+ case 7: kind = IDE_SYMBOL_PROPERTY; break;
+ case 8: kind = IDE_SYMBOL_FIELD; break;
+ case 9: kind = IDE_SYMBOL_CONSTRUCTOR; break;
+ case 10: kind = IDE_SYMBOL_ENUM; break;
+ case 11: kind = IDE_SYMBOL_INTERFACE; break;
+ case 12: kind = IDE_SYMBOL_FUNCTION; break;
+ case 13: kind = IDE_SYMBOL_VARIABLE; break;
+ case 14: kind = IDE_SYMBOL_CONSTANT; break;
+ case 15: kind = IDE_SYMBOL_STRING; break;
+ case 16: kind = IDE_SYMBOL_NUMBER; break;
+ case 17: kind = IDE_SYMBOL_BOOLEAN; break;
+ case 18: kind = IDE_SYMBOL_ARRAY; break;
+ default: kind = IDE_SYMBOL_NONE; break;
+ }
+
+ self = g_object_new (IDE_TYPE_LANGSERV_SYMBOL_NODE,
+ "flags", 0,
+ "kind", kind,
+ "name", name,
+ NULL);
+ priv = ide_langserv_symbol_node_get_instance_private (self);
+
+ priv->file = g_object_ref (file);
+ priv->parent_name = g_strdup (parent_name);
+ priv->begin.line = begin_line;
+ priv->begin.column = begin_column;
+ priv->end.line = end_line;
+ priv->end.column = end_column;
+
+ return self;
+}
diff --git a/libide/langserv/ide-langserv-symbol-node.h b/libide/langserv/ide-langserv-symbol-node.h
new file mode 100644
index 0000000..5e12c8a
--- /dev/null
+++ b/libide/langserv/ide-langserv-symbol-node.h
@@ -0,0 +1,32 @@
+/* ide-langserv-symbol-node.h
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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 IDE_LANGSERV_SYMBOL_NODE_H
+#define IDE_LANGSERV_SYMBOL_NODE_H
+
+#include "symbols/ide-symbol-node.h"
+
+G_BEGIN_DECLS
+
+#define IDE_TYPE_LANGSERV_SYMBOL_NODE (ide_langserv_symbol_node_get_type())
+
+G_DECLARE_FINAL_TYPE (IdeLangservSymbolNode, ide_langserv_symbol_node, IDE, LANGSERV_SYMBOL_NODE,
IdeSymbolNode)
+
+G_END_DECLS
+
+#endif /* IDE_LANGSERV_SYMBOL_NODE_H */
diff --git a/libide/langserv/ide-langserv-symbol-resolver.c b/libide/langserv/ide-langserv-symbol-resolver.c
index ab125dc..290a6ac 100644
--- a/libide/langserv/ide-langserv-symbol-resolver.c
+++ b/libide/langserv/ide-langserv-symbol-resolver.c
@@ -24,7 +24,11 @@
#include "diagnostics/ide-source-location.h"
#include "files/ide-file.h"
+#include "langserv/ide-langserv-symbol-node.h"
+#include "langserv/ide-langserv-symbol-node-private.h"
#include "langserv/ide-langserv-symbol-resolver.h"
+#include "langserv/ide-langserv-symbol-tree.h"
+#include "langserv/ide-langserv-symbol-tree-private.h"
typedef struct
{
@@ -283,8 +287,171 @@ ide_langserv_symbol_resolver_lookup_symbol_finish (IdeSymbolResolver *resolver,
}
static void
+ide_langserv_symbol_resolver_document_symbol_cb (GObject *object,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ IdeLangservClient *client = (IdeLangservClient *)object;
+ g_autoptr(GTask) task = user_data;
+ g_autoptr(IdeLangservSymbolTree) tree = NULL;
+ g_autoptr(GError) error = NULL;
+ g_autoptr(JsonNode) return_value = NULL;
+ g_autoptr(GPtrArray) symbols = NULL;
+ JsonArray *array;
+ guint length;
+
+ IDE_ENTRY;
+
+ g_assert (IDE_IS_LANGSERV_CLIENT (client));
+ g_assert (G_IS_TASK (task));
+
+ if (!ide_langserv_client_call_finish (client, result, &return_value, &error))
+ {
+ g_task_return_error (task, g_steal_pointer (&error));
+ IDE_EXIT;
+ }
+
+ if (!JSON_NODE_HOLDS_ARRAY (return_value) ||
+ NULL == (array = json_node_get_array (return_value)))
+ {
+ g_task_return_new_error (task,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_DATA,
+ "Invalid result for textDocument/documentSymbol");
+ IDE_EXIT;
+ }
+
+ length = json_array_get_length (array);
+
+ symbols = g_ptr_array_new_with_free_func (g_object_unref);
+
+ for (guint i = 0; i < length; i++)
+ {
+ JsonNode *node = json_array_get_element (array, i);
+ g_autoptr(IdeLangservSymbolNode) symbol = NULL;
+ g_autoptr(GFile) file = NULL;
+ const gchar *name = NULL;
+ const gchar *container_name = NULL;
+ const gchar *uri = NULL;
+ gboolean success;
+ gint kind = -1;
+ struct {
+ gint line;
+ gint column;
+ } begin, end;
+
+ /* Mandatory fields */
+ success = JCON_EXTRACT (node,
+ "name", JCONE_STRING (name),
+ "kind", JCONE_INT (kind),
+ "location", "{",
+ "uri", JCONE_STRING (uri),
+ "range", "{",
+ "start", "{",
+ "line", JCONE_INT (begin.line),
+ "character", JCONE_INT (begin.column),
+ "}",
+ "end", "{",
+ "line", JCONE_INT (end.line),
+ "character", JCONE_INT (end.column),
+ "}",
+ "}",
+ "}"
+ );
+
+ if (!success)
+ continue;
+
+ /* Optional fields */
+ JCON_EXTRACT (node, "containerName", &container_name);
+
+ file = g_file_new_for_uri (uri);
+
+ symbol = ide_langserv_symbol_node_new (file, name, container_name, kind,
+ begin.line, begin.column,
+ end.line, end.column);
+
+ g_ptr_array_add (symbols, g_steal_pointer (&symbol));
+ }
+
+ tree = ide_langserv_symbol_tree_new (g_steal_pointer (&symbols));
+
+ g_task_return_pointer (task, g_steal_pointer (&tree), g_object_unref);
+
+ IDE_EXIT;
+}
+
+static void
+ide_langserv_symbol_resolver_get_symbol_tree_async (IdeSymbolResolver *resolver,
+ GFile *file,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ IdeLangservSymbolResolver *self = (IdeLangservSymbolResolver *)resolver;
+ IdeLangservSymbolResolverPrivate *priv = ide_langserv_symbol_resolver_get_instance_private (self);
+ g_autoptr(GTask) task = NULL;
+ g_autoptr(JsonNode) params = NULL;
+ g_autofree gchar *uri = NULL;
+
+ IDE_ENTRY;
+
+ g_assert (IDE_IS_LANGSERV_SYMBOL_RESOLVER (self));
+ g_assert (G_IS_FILE (file));
+ g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+ task = g_task_new (self, cancellable, callback, user_data);
+ g_task_set_source_tag (task, ide_langserv_symbol_resolver_get_symbol_tree_async);
+
+ if (priv->client == NULL)
+ {
+ g_task_return_new_error (task,
+ G_IO_ERROR,
+ G_IO_ERROR_NOT_CONNECTED,
+ "Cannot query language server, not connected");
+ IDE_EXIT;
+ }
+
+ uri = g_file_get_uri (file);
+
+ params = JCON_NEW (
+ "textDocument", "{",
+ "uri", JCON_STRING (uri),
+ "}"
+ );
+
+ ide_langserv_client_call_async (priv->client,
+ "textDocument/documentSymbol",
+ g_steal_pointer (¶ms),
+ cancellable,
+ ide_langserv_symbol_resolver_document_symbol_cb,
+ g_steal_pointer (&task));
+
+ IDE_EXIT;
+}
+
+static IdeSymbolTree *
+ide_langserv_symbol_resolver_get_symbol_tree_finish (IdeSymbolResolver *resolver,
+ GAsyncResult *result,
+ GError **error)
+{
+ IdeSymbolTree *ret;
+
+ IDE_ENTRY;
+
+ g_return_val_if_fail (IDE_IS_LANGSERV_SYMBOL_RESOLVER (resolver), NULL);
+ g_return_val_if_fail (G_IS_TASK (result), NULL);
+
+ ret = g_task_propagate_pointer (G_TASK (result), error);
+
+ IDE_RETURN (ret);
+}
+
+static void
symbol_resolver_iface_init (IdeSymbolResolverInterface *iface)
{
iface->lookup_symbol_async = ide_langserv_symbol_resolver_lookup_symbol_async;
iface->lookup_symbol_finish = ide_langserv_symbol_resolver_lookup_symbol_finish;
+ iface->get_symbol_tree_async = ide_langserv_symbol_resolver_get_symbol_tree_async;
+ iface->get_symbol_tree_finish = ide_langserv_symbol_resolver_get_symbol_tree_finish;
}
diff --git a/libide/langserv/ide-langserv-symbol-tree-private.h
b/libide/langserv/ide-langserv-symbol-tree-private.h
new file mode 100644
index 0000000..4c9afe1
--- /dev/null
+++ b/libide/langserv/ide-langserv-symbol-tree-private.h
@@ -0,0 +1,30 @@
+/* ide-langserv-symbol-tree-private.h
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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 IDE_LANGSERV_SYMBOL_TREE_PRIVATE_H
+#define IDE_LANGSERV_SYMBOL_TREE_PRIVATE_H
+
+#include "ide-langserv-symbol-tree.h"
+
+G_BEGIN_DECLS
+
+IdeLangservSymbolTree *ide_langserv_symbol_tree_new (GPtrArray *symbols);
+
+G_END_DECLS
+
+#endif /* IDE_LANGSERV_SYMBOL_TREE_PRIVATE_H */
diff --git a/libide/langserv/ide-langserv-symbol-tree.c b/libide/langserv/ide-langserv-symbol-tree.c
new file mode 100644
index 0000000..07eaf29
--- /dev/null
+++ b/libide/langserv/ide-langserv-symbol-tree.c
@@ -0,0 +1,124 @@
+/* ide-langserv-symbol-tree.c
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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/>.
+ */
+
+#define G_LOG_DOMAIN "ide-langserv-symbol-tree"
+
+#include "ide-langserv-symbol-tree.h"
+
+typedef struct
+{
+ GPtrArray *symbols;
+} IdeLangservSymbolTreePrivate;
+
+struct _IdeLangservSymbolTree
+{
+ GObject parent_instance;
+};
+
+static void symbol_tree_iface_init (IdeSymbolTreeInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (IdeLangservSymbolTree, ide_langserv_symbol_tree, G_TYPE_OBJECT,
+ G_ADD_PRIVATE (IdeLangservSymbolTree)
+ G_IMPLEMENT_INTERFACE (IDE_TYPE_SYMBOL_TREE, symbol_tree_iface_init))
+
+static guint
+ide_langserv_symbol_tree_get_n_children (IdeSymbolTree *tree,
+ IdeSymbolNode *parent)
+{
+ IdeLangservSymbolTree *self = (IdeLangservSymbolTree *)tree;
+ IdeLangservSymbolTreePrivate *priv = ide_langserv_symbol_tree_get_instance_private (self);
+
+ g_assert (IDE_IS_LANGSERV_SYMBOL_TREE (self));
+ g_assert (!parent || IDE_IS_SYMBOL_NODE (parent));
+
+ /* TODO: FIXME: XXX: Take symbol parent into account */
+
+ if (parent != NULL)
+ return 0;
+
+ return priv->symbols->len;
+}
+
+static IdeSymbolNode *
+ide_langserv_symbol_tree_get_nth_child (IdeSymbolTree *tree,
+ IdeSymbolNode *parent,
+ guint nth)
+{
+ IdeLangservSymbolTree *self = (IdeLangservSymbolTree *)tree;
+ IdeLangservSymbolTreePrivate *priv = ide_langserv_symbol_tree_get_instance_private (self);
+
+ g_return_val_if_fail (IDE_IS_LANGSERV_SYMBOL_TREE (self), NULL);
+ g_return_val_if_fail (!parent || IDE_IS_SYMBOL_NODE (parent), NULL);
+ g_return_val_if_fail (nth < priv->symbols->len, NULL);
+
+ return g_object_ref (g_ptr_array_index (priv->symbols, nth));
+}
+
+static void
+symbol_tree_iface_init (IdeSymbolTreeInterface *iface)
+{
+ iface->get_n_children = ide_langserv_symbol_tree_get_n_children;
+ iface->get_nth_child = ide_langserv_symbol_tree_get_nth_child;
+}
+
+static void
+ide_langserv_symbol_tree_finalize (GObject *object)
+{
+ IdeLangservSymbolTree *self = (IdeLangservSymbolTree *)object;
+ IdeLangservSymbolTreePrivate *priv = ide_langserv_symbol_tree_get_instance_private (self);
+
+ g_clear_pointer (&priv->symbols, g_ptr_array_unref);
+
+ G_OBJECT_CLASS (ide_langserv_symbol_tree_parent_class)->finalize (object);
+}
+
+static void
+ide_langserv_symbol_tree_class_init (IdeLangservSymbolTreeClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = ide_langserv_symbol_tree_finalize;
+}
+
+static void
+ide_langserv_symbol_tree_init (IdeLangservSymbolTree *self)
+{
+}
+
+/**
+ * ide_langserv_symbol_tree_new:
+ * @symbols: (transfer container) (element-type Ide.LangservSymbolNode): The symbols
+ *
+ * Creates a new #IdeLangservSymbolTree but takes ownership of @ar.
+ *
+ * Returns: (transfer full): A newly allocated #IdeLangservSymbolTree.
+ */
+IdeLangservSymbolTree *
+ide_langserv_symbol_tree_new (GPtrArray *symbols)
+{
+ IdeLangservSymbolTreePrivate *priv;
+ IdeLangservSymbolTree *self;
+
+ g_return_val_if_fail (symbols != NULL, NULL);
+
+ self = g_object_new (IDE_TYPE_LANGSERV_SYMBOL_TREE, NULL);
+ priv = ide_langserv_symbol_tree_get_instance_private (self);
+ priv->symbols = symbols;
+
+ return self;
+}
diff --git a/libide/langserv/ide-langserv-symbol-tree.h b/libide/langserv/ide-langserv-symbol-tree.h
new file mode 100644
index 0000000..9457334
--- /dev/null
+++ b/libide/langserv/ide-langserv-symbol-tree.h
@@ -0,0 +1,32 @@
+/* ide-langserv-symbol-tree.h
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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 IDE_LANGSERV_SYMBOL_TREE_H
+#define IDE_LANGSERV_SYMBOL_TREE_H
+
+#include "symbols/ide-symbol-tree.h"
+
+G_BEGIN_DECLS
+
+#define IDE_TYPE_LANGSERV_SYMBOL_TREE (ide_langserv_symbol_tree_get_type())
+
+G_DECLARE_FINAL_TYPE (IdeLangservSymbolTree, ide_langserv_symbol_tree, IDE, LANGSERV_SYMBOL_TREE, GObject)
+
+G_END_DECLS
+
+#endif /* IDE_LANGSERV_SYMBOL_TREE_H */
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