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Avoid expression evaluation in libStdC++ std::vector<bool> synthetic children provider #108414

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Merged
jeffreytan81 merged 8 commits into from
Sep 13, 2024
Merged

Avoid expression evaluation in libStdC++ std::vector<bool> synthetic children provider #108414

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6e84ab9
Fix StartDebuggingRequestHandler/ReplModeRequestHandler in lldb-dap
Aug 19, 2024
b23f3ea
Merge branch 'llvm:main' into main
jeffreytan81 Aug 21, 2024
b8ec0fb
Merge branch 'llvm:main' into main
jeffreytan81 Aug 26, 2024
1a350e4
Merge branch 'llvm:main' into main
jeffreytan81 Sep 12, 2024
d56c9b3
Add CreateBoolValue API
Sep 12, 2024
37a5ffa
Fix typo
Sep 12, 2024
257cd0d
Use ValueObject::CreateValueObjectFromBool() API
Sep 12, 2024
713242a
Remove SetAddressTypeOfChildren() call
Sep 13, 2024
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6 changes: 1 addition & 5 deletions lldb/examples/synthetic/gnu_libstdcpp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -473,11 +473,7 @@ def get_child_at_index(self, index):
"[" + str(index) + "]", element_offset, element_type
)
bit = element.GetValueAsUnsigned(0) & (1 << bit_offset)
if bit != 0:
value_expr = "(bool)true"
else:
value_expr = "(bool)false"
return self.valobj.CreateValueFromExpression("[%d]" % index, value_expr)
return self.valobj.CreateBoolValue("[%d]" % index, bool(bit))

def update(self):
try:
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2 changes: 2 additions & 0 deletions lldb/include/lldb/API/SBValue.h
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Expand Up @@ -145,6 +145,8 @@ class LLDB_API SBValue {
// AddressOf() on the return of this call all return invalid
lldb::SBValue CreateValueFromData(const char *name, lldb::SBData data,
lldb::SBType type);
// Returned value has no address.
lldb::SBValue CreateBoolValue(const char *name, bool value);
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@Jlalond Jlalond Sep 12, 2024

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I would add a blurb this is created from data not address


/// Get a child value by index from a value.
///
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16 changes: 16 additions & 0 deletions lldb/source/API/SBValue.cpp
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Expand Up @@ -645,6 +645,22 @@ lldb::SBValue SBValue::CreateValueFromData(const char *name, SBData data,
return sb_value;
}

lldb::SBValue SBValue::CreateBoolValue(const char *name, bool value) {
LLDB_INSTRUMENT_VA(this, name);

lldb::SBValue sb_value;
lldb::ValueObjectSP new_value_sp;
ValueLocker locker;
lldb::ValueObjectSP value_sp(GetSP(locker));
lldb::TargetSP target_sp = m_opaque_sp->GetTargetSP();
if (value_sp && target_sp) {
new_value_sp =
ValueObject::CreateValueObjectFromBool(target_sp, value, name);
}
sb_value.SetSP(new_value_sp);
return sb_value;
}

SBValue SBValue::GetChildAtIndex(uint32_t idx) {
LLDB_INSTRUMENT_VA(this, idx);

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