Add decimal_fast32_t pretty printer

Author: mborland

extra/decimal_printer.py

@@ -53,11 +53,29 @@ def decimal128_summary(valobj, internal_dict):
     except Exception as e:
         return f"<invalid decimal128_t: {e}>"
 
+def decimal_fast32_summary(valobj, internal_dict):
+    """
+    Custom summary for decimal_fast32_t type
+    Displays in scientific notation
+    """
+
+    try:
+        val = valobj.GetNonSyntheticValue()
+        significand = val.GetChildMemberWithName("significand_").GetValueAsUnsigned()
+        exp = val.GetChildMemberWithName("exponent_").GetValueAsUnsigned()
+        sign = val.GetChildMemberWithName("sign_").GetValueAsUnsigned()
+        return decode_fast_type(significand, exp, sign)
+
+    except Exception as e:
+        return f"<invalid decimal_fast32_t: {e}>"
+
 def __lldb_init_module(debugger, internal_dict):
     decimal32_pattern = r"^(const )?(boost::decimal::decimal32_t|(\w+::)*decimal32_t)( &| \*)?$"
     decimal64_pattern = r"^(const )?(boost::decimal::decimal64_t|(\w+::)*decimal64_t)( &| \*)?$"
     decimal128_pattern = r"^(const )?(boost::decimal::decimal128_t|(\w+::)*decimal128_t)( &| \*)?$"
 
+    decimal_fast32_pattern = r"^(const )?(boost::decimal::decimal_fast32_t|(\w+::)*decimal_fast32_t)( &| \*)?$"
+
     debugger.HandleCommand(
         f'type summary add -x "{decimal32_pattern}" -e -F decimal_printer.decimal32_summary'
     )
@@ -85,6 +103,15 @@ def __lldb_init_module(debugger, internal_dict):
 
     print("decimal128_t printer loaded successfully")
 
+    debugger.HandleCommand(
+        f'type summary add -x "{decimal_fast32_pattern}" -e -F decimal_printer.decimal_fast32_summary'
+    )
+    debugger.HandleCommand(
+        f'type synthetic add -x "{decimal_fast32_pattern}" -l decimal_printer.DecimalFastSyntheticProvider'
+    )
+
+    print("decimal_fast32_t printer loaded successfully")
+
 class DecimalSyntheticProvider:
     def __init__(self, valobj, internal_dict):
         self.valobj = valobj