[Patch] BaseTools: enhance error check for DatumType format

[Yonghong Zhu <yonghong.zhu@intel.com>]

Add a check for DatumType format, eg: VOID *, original Tool will crash
but no detail error message which cause confusion to user.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
---
 BaseTools/Source/Python/Workspace/DecBuildData.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/BaseTools/Source/Python/Workspace/DecBuildData.py b/BaseTools/Source/Python/Workspace/DecBuildData.py
index 2fd3820..2266b0b 100644
--- a/BaseTools/Source/Python/Workspace/DecBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DecBuildData.py
@@ -1,9 +1,9 @@
 ## @file
 # This file is used to create a database used by build tool
 #
-# Copyright (c) 2008 - 2017, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
 # (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution.  The full text of the license may be found at
 # http://opensource.org/licenses/bsd-license.php
@@ -421,10 +421,15 @@ class DecBuildData(PackageBuildClassObject):
             Setting,LineNo = PcdDict[self._Arch, PcdCName, TokenSpaceGuid]
             if Setting == None:
                 continue
 
             DefaultValue, DatumType, TokenNumber = AnalyzePcdData(Setting)
+            if DatumType not in [TAB_UINT8, TAB_UINT16, TAB_UINT32, TAB_UINT64, TAB_VOID, "BOOLEAN"]:
+                StructPattern = re.compile(r'[_a-zA-Z][0-9A-Za-z_]*$')
+                if StructPattern.match(DatumType) == None:
+                    EdkLogger.error('build', FORMAT_INVALID, "DatumType only support BOOLEAN, UINT8, UINT16, UINT32, UINT64, VOID* or a valid struct name.", File=self.MetaFile, Line=LineNo)
+
             validateranges, validlists, expressions = self._RawData.GetValidExpression(TokenSpaceGuid, PcdCName)
             PcdObj = PcdClassObject(
                                         PcdCName,
                                         TokenSpaceGuid,
                                         self._PCD_TYPE_STRING_[Type],
-- 
2.6.1.windows.1