1 STRING_EXTENSION_OUTSIDE(SBValue) 2 %extend lldb::SBValue { 3 #ifdef SWIGPYTHON 4 %pythoncode %{ 5 def __get_dynamic__ (self): 6 '''Helper function for the "SBValue.dynamic" property.''' 7 return self.GetDynamicValue (eDynamicCanRunTarget) 8 9 class children_access(object): 10 '''A helper object that will lazily hand out thread for a process when supplied an index.''' 11 12 def __init__(self, sbvalue): 13 self.sbvalue = sbvalue 14 15 def __len__(self): 16 if self.sbvalue: 17 return int(self.sbvalue.GetNumChildren()) 18 return 0 19 20 def __getitem__(self, key): 21 if isinstance(key, int): 22 count = len(self) 23 if -count <= key < count: 24 key %= count 25 return self.sbvalue.GetChildAtIndex(key) 26 return None 27 28 def get_child_access_object(self): 29 '''An accessor function that returns a children_access() object which allows lazy member variable access from a lldb.SBValue object.''' 30 return self.children_access (self) 31 32 def get_value_child_list(self): 33 '''An accessor function that returns a list() that contains all children in a lldb.SBValue object.''' 34 children = [] 35 accessor = self.get_child_access_object() 36 for idx in range(len(accessor)): 37 children.append(accessor[idx]) 38 return children 39 40 def __iter__(self): 41 '''Iterate over all child values of a lldb.SBValue object.''' 42 return lldb_iter(self, 'GetNumChildren', 'GetChildAtIndex') 43 44 def __len__(self): 45 '''Return the number of child values of a lldb.SBValue object.''' 46 return self.GetNumChildren() 47 48 children = property(get_value_child_list, None, doc='''A read only property that returns a list() of lldb.SBValue objects for the children of the value.''') 49 child = property(get_child_access_object, None, doc='''A read only property that returns an object that can access children of a variable by index (child_value = value.children[12]).''') 50 name = property(GetName, None, doc='''A read only property that returns the name of this value as a string.''') 51 type = property(GetType, None, doc='''A read only property that returns a lldb.SBType object that represents the type for this value.''') 52 size = property(GetByteSize, None, doc='''A read only property that returns the size in bytes of this value.''') 53 is_in_scope = property(IsInScope, None, doc='''A read only property that returns a boolean value that indicates whether this value is currently lexically in scope.''') 54 format = property(GetName, SetFormat, doc='''A read/write property that gets/sets the format used for lldb.SBValue().GetValue() for this value. See enumerations that start with "lldb.eFormat".''') 55 value = property(GetValue, SetValueFromCString, doc='''A read/write property that gets/sets value from a string.''') 56 value_type = property(GetValueType, None, doc='''A read only property that returns an lldb enumeration value (see enumerations that start with "lldb.eValueType") that represents the type of this value (local, argument, global, register, etc.).''') 57 changed = property(GetValueDidChange, None, doc='''A read only property that returns a boolean value that indicates if this value has changed since it was last updated.''') 58 data = property(GetData, None, doc='''A read only property that returns an lldb object (lldb.SBData) that represents the bytes that make up the value for this object.''') 59 load_addr = property(GetLoadAddress, None, doc='''A read only property that returns the load address of this value as an integer.''') 60 addr = property(GetAddress, None, doc='''A read only property that returns an lldb.SBAddress that represents the address of this value if it is in memory.''') 61 deref = property(Dereference, None, doc='''A read only property that returns an lldb.SBValue that is created by dereferencing this value.''') 62 address_of = property(AddressOf, None, doc='''A read only property that returns an lldb.SBValue that represents the address-of this value.''') 63 error = property(GetError, None, doc='''A read only property that returns the lldb.SBError that represents the error from the last time the variable value was calculated.''') 64 summary = property(GetSummary, None, doc='''A read only property that returns the summary for this value as a string''') 65 description = property(GetObjectDescription, None, doc='''A read only property that returns the language-specific description of this value as a string''') 66 dynamic = property(__get_dynamic__, None, doc='''A read only property that returns an lldb.SBValue that is created by finding the dynamic type of this value.''') 67 location = property(GetLocation, None, doc='''A read only property that returns the location of this value as a string.''') 68 target = property(GetTarget, None, doc='''A read only property that returns the lldb.SBTarget that this value is associated with.''') 69 process = property(GetProcess, None, doc='''A read only property that returns the lldb.SBProcess that this value is associated with, the returned value might be invalid and should be tested.''') 70 thread = property(GetThread, None, doc='''A read only property that returns the lldb.SBThread that this value is associated with, the returned value might be invalid and should be tested.''') 71 frame = property(GetFrame, None, doc='''A read only property that returns the lldb.SBFrame that this value is associated with, the returned value might be invalid and should be tested.''') 72 num_children = property(GetNumChildren, None, doc='''A read only property that returns the number of child lldb.SBValues that this value has.''') 73 unsigned = property(GetValueAsUnsigned, None, doc='''A read only property that returns the value of this SBValue as an usigned integer.''') 74 signed = property(GetValueAsSigned, None, doc='''A read only property that returns the value of this SBValue as a signed integer.''') 75 76 def get_expr_path(self): 77 s = SBStream() 78 self.GetExpressionPath (s) 79 return s.GetData() 80 81 path = property(get_expr_path, None, doc='''A read only property that returns the expression path that one can use to reach this value in an expression.''') 82 83 def synthetic_child_from_expression(self, name, expr, options=None): 84 if options is None: options = lldb.SBExpressionOptions() 85 child = self.CreateValueFromExpression(name, expr, options) 86 child.SetSyntheticChildrenGenerated(True) 87 return child 88 89 def synthetic_child_from_data(self, name, data, type): 90 child = self.CreateValueFromData(name, data, type) 91 child.SetSyntheticChildrenGenerated(True) 92 return child 93 94 def synthetic_child_from_address(self, name, addr, type): 95 child = self.CreateValueFromAddress(name, addr, type) 96 child.SetSyntheticChildrenGenerated(True) 97 return child 98 99 def __eol_test(val): 100 """Default function for end of list test takes an SBValue object. 101 102 Return True if val is invalid or it corresponds to a null pointer. 103 Otherwise, return False. 104 """ 105 if not val or val.GetValueAsUnsigned() == 0: 106 return True 107 else: 108 return False 109 110 # ================================================== 111 # Iterator for lldb.SBValue treated as a linked list 112 # ================================================== 113 def linked_list_iter(self, next_item_name, end_of_list_test=__eol_test): 114 """Generator adaptor to support iteration for SBValue as a linked list. 115 116 linked_list_iter() is a special purpose iterator to treat the SBValue as 117 the head of a list data structure, where you specify the child member 118 name which points to the next item on the list and you specify the 119 end-of-list test function which takes an SBValue for an item and returns 120 True if EOL is reached and False if not. 121 122 linked_list_iter() also detects infinite loop and bails out early. 123 124 The end_of_list_test arg, if omitted, defaults to the __eol_test 125 function above. 126 127 For example, 128 129 # Get Frame #0. 130 ... 131 132 # Get variable 'task_head'. 133 task_head = frame0.FindVariable('task_head') 134 ... 135 136 for t in task_head.linked_list_iter('next'): 137 print t 138 """ 139 if end_of_list_test(self): 140 return 141 item = self 142 visited = set() 143 try: 144 while not end_of_list_test(item) and not item.GetValueAsUnsigned() in visited: 145 visited.add(item.GetValueAsUnsigned()) 146 yield item 147 # Prepare for the next iteration. 148 item = item.GetChildMemberWithName(next_item_name) 149 except: 150 # Exception occurred. Stop the generator. 151 pass 152 153 return 154 %} 155 #endif 156 } 157