1 files changed, 61 insertions, 5 deletions
diff --git a/pyGHDL/dom/_Utils.py b/pyGHDL/dom/_Utils.py
index e75c5f36a..1c109c9dc 100644
--- a/pyGHDL/dom/_Utils.py
+++ b/pyGHDL/dom/_Utils.py
@@ -30,13 +30,15 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 # ============================================================================
-from pyGHDL.libghdl._types import Iir
 from pydecor import export
 
+from pyGHDL.dom.Common import DOMException
 from pyVHDLModel.VHDLModel import Mode
 
-from pyGHDL.libghdl import LibGHDLException, name_table, files_map
+from pyGHDL.libghdl import LibGHDLException, name_table, files_map, errorout_memory
 from pyGHDL.libghdl.vhdl import nodes
+from pyGHDL.libghdl.vhdl.nodes import Null_Iir
+from pyGHDL.libghdl._types import Iir
 from pyGHDL.dom.Misc import Position
 
 
@@ -52,9 +54,33 @@ __MODE_TRANSLATION = {
 
 
 @export
+def CheckForErrors() -> None:
+    errorCount = errorout_memory.Get_Nbr_Messages()
+    errors = []
+    if errorCount != 0:
+        for i in range(errorCount):
+            rec = errorout_memory.Get_Error_Record(i + 1)
+            fileName = name_table.Get_Name_Ptr(files_map.Get_File_Name(rec.file))
+            message = errorout_memory.Get_Error_Message(i + 1)
+
+            errors.append(
+                "{file}:{line}:{column}: {msg}".format(
+                    file=fileName, line=rec.line, column=rec.offset, msg=message
+                )
+            )
+
+        raise DOMException("Error raised in libghdl.") from LibGHDLException(
+            "libghdl: Internal error.", errors
+        )
+
+
+@export
 def GetIirKindOfNode(node: Iir) -> nodes.Iir_Kind:
-    # This function is the most likely to be called on a Null_Iir node
-    assert node != 0
+    """Return the kind of a node in the IIR tree."""
+
+    if node == Null_Iir:
+        raise ValueError("Parameter 'node' must not be 'Null_iir'.")
+
     kind: int = nodes.Get_Kind(node)
     return nodes.Iir_Kind(kind)
 
@@ -62,13 +88,38 @@ def GetIirKindOfNode(node: Iir) -> nodes.Iir_Kind:
 @export
 def GetNameOfNode(node: Iir) -> str:
     """Return the python string from node :obj:`node` identifier."""
+
+    if node == Null_Iir:
+        raise ValueError("Parameter 'node' must not be 'Null_iir'.")
+
     identifier = nodes.Get_Identifier(node)
     return name_table.Get_Name_Ptr(identifier)
 
 
 @export
+def GetSelectedName(node: Iir):
+    names = []
+    kind = GetIirKindOfNode(node)
+    if kind == nodes.Iir_Kind.Simple_Name:
+        return GetNameOfNode(node)
+
+    while kind != nodes.Iir_Kind.Simple_Name:
+        names.append(GetNameOfNode(node))
+        node = nodes.Get_Prefix(node)
+        kind = GetIirKindOfNode(node)
+
+    names.append(GetNameOfNode(node))
+
+    return reversed(names)
+
+
+@export
 def GetModeOfNode(node: Iir) -> Mode:
-    """Return the mode of a :obj:`port`."""
+    """Return the mode of a :obj:`node`."""
+
+    if node == Null_Iir:
+        raise ValueError("Parameter 'node' must not be 'Null_iir'.")
+
     try:
         return __MODE_TRANSLATION[nodes.Get_Mode(node)]
     except KeyError:
@@ -77,6 +128,11 @@ def GetModeOfNode(node: Iir) -> Mode:
 
 @export
 def GetPositionOfNode(node: Iir) -> Position:
+    """Return the source code position of a IIR node."""
+
+    if node == Null_Iir:
+        raise ValueError("Parameter 'node' must not be 'Null_iir'.")
+
     location = nodes.Get_Location(node)
     file = files_map.Location_To_File(location)
     fileName = name_table.Get_Name_Ptr(files_map.Get_File_Name(file))