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-rw-r--r--llvm/utils/lldbDataFormatters.py10
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/utils/lldbDataFormatters.py b/llvm/utils/lldbDataFormatters.py
index f570fb49f34..687729f61ed 100644
--- a/llvm/utils/lldbDataFormatters.py
+++ b/llvm/utils/lldbDataFormatters.py
@@ -15,6 +15,9 @@ def __lldb_init_module(debugger, internal_dict):
debugger.HandleCommand('type synthetic add -w llvm '
'-l lldbDataFormatters.ArrayRefSynthProvider '
'-x "^llvm::ArrayRef<.+>$"')
+ debugger.HandleCommand('type summary add -w llvm '
+ '-F lldbDataFormatters.OptionalSummaryProvider '
+ '-x "^llvm::Optional<.+>$"')
# Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl
class SmallVectorSynthProvider:
@@ -86,3 +89,10 @@ class ArrayRefSynthProvider:
self.data_type = self.data.GetType().GetPointeeType()
self.type_size = self.data_type.GetByteSize()
assert self.type_size != 0
+
+def OptionalSummaryProvider(valobj, internal_dict):
+ if not valobj.GetChildMemberWithName('hasVal').GetValueAsUnsigned(0):
+ return 'None'
+ underlying_type = valobj.GetType().GetTemplateArgumentType(0)
+ storage = valobj.GetChildMemberWithName('storage')
+ return str(storage.Cast(underlying_type))
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