"""
-Load into LLDB with:
-script import lldbDataFormatters
-type synthetic add -x "^llvm::SmallVectorImpl<.+>$" -l lldbDataFormatters.SmallVectorSynthProvider
+LLDB Formatters for LLVM data types.
+
+Load into LLDB with 'command script import /path/to/lldbDataFormatters.py'
"""
+def __lldb_init_module(debugger, internal_dict):
+ debugger.HandleCommand('type category define -e llvm -l c++')
+ debugger.HandleCommand('type synthetic add -w llvm '
+ '-l lldbDataFormatters.SmallVectorSynthProvider '
+ '-x "^llvm::SmallVectorImpl<.+>$"')
+ debugger.HandleCommand('type synthetic add -w llvm '
+ '-l lldbDataFormatters.SmallVectorSynthProvider '
+ '-x "^llvm::SmallVector<.+,.+>$"')
+ debugger.HandleCommand('type synthetic add -w llvm '
+ '-l lldbDataFormatters.ArrayRefSynthProvider '
+ '-x "^llvm::ArrayRef<.+>$"')
+ debugger.HandleCommand('type summary add -w llvm '
+ '-F lldbDataFormatters.OptionalSummaryProvider '
+ '-x "^llvm::Optional<.+>$"')
+
# Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl
class SmallVectorSynthProvider:
def __init__(self, valobj, dict):
return self.begin.CreateChildAtOffset('['+str(index)+']',
offset, self.data_type)
- def get_type_from_name(self):
- import re
- name = self.valobj.GetType().GetName()
- # This class works with both SmallVectors and SmallVectorImpls.
- res = re.match("^(llvm::)?SmallVectorImpl<(.+)>$", name)
- if res:
- return res.group(2)
- res = re.match("^(llvm::)?SmallVector<(.+), \d+>$", name)
- if res:
- return res.group(2)
- return None
-
def update(self):
self.begin = self.valobj.GetChildMemberWithName('BeginX')
self.end = self.valobj.GetChildMemberWithName('EndX')
- data_type = self.get_type_from_name()
- # FIXME: this sometimes returns an invalid type.
- self.data_type = self.valobj.GetTarget().FindFirstType(data_type)
+ the_type = self.valobj.GetType()
+ # If this is a reference type we have to dereference it to get to the
+ # template parameter.
+ if the_type.IsReferenceType():
+ the_type = the_type.GetDereferencedType()
+
+ self.data_type = the_type.GetTemplateArgumentType(0)
+ self.type_size = self.data_type.GetByteSize()
+ assert self.type_size != 0
+
+class ArrayRefSynthProvider:
+ """ Provider for llvm::ArrayRef """
+ def __init__(self, valobj, dict):
+ self.valobj = valobj;
+ self.update() # initialize this provider
+
+ def num_children(self):
+ return self.length
+
+ def get_child_index(self, name):
+ try:
+ return int(name.lstrip('[').rstrip(']'))
+ except:
+ return -1;
+
+ def get_child_at_index(self, index):
+ if index < 0 or index >= self.num_children():
+ return None;
+ offset = index * self.type_size
+ return self.data.CreateChildAtOffset('[' + str(index) + ']',
+ offset, self.data_type)
+
+ def update(self):
+ self.data = self.valobj.GetChildMemberWithName('Data')
+ length_obj = self.valobj.GetChildMemberWithName('Length')
+ self.length = length_obj.GetValueAsUnsigned(0)
+ 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))