[Lldb-commits] [lldb] Make ValueObject::Cast work for casts from smaller to larger structs in the cases where this currently can work. (PR #84588)

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``````````bash
git-clang-format --diff 9405d5af65853ac548cce2656497195010db1d86 e85c0108f3508537b4d2d9fe9120dd07ebd00361 -- lldb/source/Core/ValueObject.cpp lldb/test/API/python_api/value/main.c
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View the diff from clang-format here.
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``````````diff
diff --git a/lldb/source/Core/ValueObject.cpp b/lldb/source/Core/ValueObject.cpp
index f39bd07a25..81c1f7fc20 100644
--- a/lldb/source/Core/ValueObject.cpp
+++ b/lldb/source/Core/ValueObject.cpp
@@ -2745,7 +2745,7 @@ ValueObjectSP ValueObject::DoCast(const CompilerType &compiler_type) {
 ValueObjectSP ValueObject::Cast(const CompilerType &compiler_type) {
   // Only allow casts if the original type is equal or larger than the cast
   // type, unless we know this is a load address.  Getting the size wrong for
-  // a host side storage could leak lldb memory, so we absolutely want to 
+  // a host side storage could leak lldb memory, so we absolutely want to
   // prevent that.  We may not always get the right value, for instance if we
   // have an expression result value that's copied into a storage location in
   // the target may not have copied enough memory.  I'm not trying to fix that
@@ -2763,10 +2763,10 @@ ValueObjectSP ValueObject::Cast(const CompilerType &compiler_type) {
   ExecutionContextScope *exe_scope
       = ExecutionContext(GetExecutionContextRef())
           .GetBestExecutionContextScope();
-  if (compiler_type.GetByteSize(exe_scope)
-      <= GetCompilerType().GetByteSize(exe_scope) 
-      || m_value.GetValueType() == Value::ValueType::LoadAddress)
-        return DoCast(compiler_type);
+  if (compiler_type.GetByteSize(exe_scope) <=
+          GetCompilerType().GetByteSize(exe_scope) ||
+      m_value.GetValueType() == Value::ValueType::LoadAddress)
+    return DoCast(compiler_type);
 
   error.SetErrorString("Can only cast to a type that is equal to or smaller "
                        "than the orignal type.");
diff --git a/lldb/test/API/python_api/value/main.c b/lldb/test/API/python_api/value/main.c
index cdb2aa2f61..78a7de6210 100644
--- a/lldb/test/API/python_api/value/main.c
+++ b/lldb/test/API/python_api/value/main.c
@@ -22,7 +22,7 @@ const char *weekdays[5] = { "Monday",
 const char **g_table[2] = { days_of_week, weekdays };
 
 typedef int MyInt;
-  
+
 struct MyStruct
 {
   int a;
@@ -36,15 +36,14 @@ struct MyBiggerStruct
   int c;
 };
 
-struct Container
-{
+struct Container {
   int discriminator;
   union Data {
     struct MyStruct small;
     struct MyBiggerStruct big;
   } data;
 };
-  
+
 int main (int argc, char const *argv[])
 {
     uint32_t uinthex = 0xE0A35F10;

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https://github.com/llvm/llvm-project/pull/84588