f38ebec710
A synthetic child provider might need to do considerable amount of work to compute the number of children. lldb-dap is currently calling that for all synthethic variables, but it's only actually using the value for values which it deems to be "indexed" (which is determined by looking at the name of the first child). This patch reverses the logic so that GetNumChildren is only called for variables with a suitable first child.
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
import lldb
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num_children_calls = []
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class TestSyntheticProvider:
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def __init__(self, valobj, dict):
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target = valobj.GetTarget()
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self._type = valobj.GetType()
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data = lldb.SBData.CreateDataFromCString(lldb.eByteOrderLittle, 8, "S")
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name = "child" if "Not" in self._type.GetName() else "[0]"
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self._child = valobj.CreateValueFromData(
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name, data, target.GetBasicType(lldb.eBasicTypeChar)
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)
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def num_children(self):
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num_children_calls.append(self._type.GetName())
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return 1
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def get_child_at_index(self, index):
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if index != 0:
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return None
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return self._child
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def get_child_index(self, name):
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if name == self._child.GetName():
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return 0
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return None
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def __lldb_init_module(debugger, dict):
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cat = debugger.CreateCategory("TestCategory")
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cat.AddTypeSynthetic(
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lldb.SBTypeNameSpecifier("Indexed"),
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lldb.SBTypeSynthetic.CreateWithClassName("formatter.TestSyntheticProvider"),
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)
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cat.AddTypeSynthetic(
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lldb.SBTypeNameSpecifier("NotIndexed"),
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lldb.SBTypeSynthetic.CreateWithClassName("formatter.TestSyntheticProvider"),
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)
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cat.SetEnabled(True)
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