feat: add IsMutable for FieldInfo

closes cppalliance#177

Author: sdkrystian

include/mrdox/Metadata/Field.hpp

@@ -52,6 +52,9 @@ struct FieldInfo
     // attributes (maybe_unused, no_unique_address, deprecated)
     FieldFlags specs;
 
+    /** Whether the field is declared mutable */
+    bool IsMutable = false;
+
     //--------------------------------------------
 
     explicit

source/-XML/XMLWriter.cpp

@@ -438,6 +438,12 @@ writeField(
 
     writeSourceInfo(I);
 
+    if(I.IsMutable)
+        tags_.write(attributeTagName, {}, {
+            {"name", "is-mutable"},
+            {"value", "1"}
+        });
+
     write(I.specs, tags_);
 
     writeType(I.Type, tags_);

source/AST/ASTVisitor.cpp

@@ -1275,6 +1275,8 @@ buildField(
     I.Type = buildTypeInfoForType(D->getType());
 #endif
 
+    I.IsMutable = D->isMutable();
+
     I.specs.hasNoUniqueAddress = D->hasAttr<NoUniqueAddressAttr>();
     I.specs.isDeprecated = D->hasAttr<DeprecatedAttr>();
     I.specs.isMaybeUnused = D->hasAttr<UnusedAttr>();

source/AST/AnyBlock.hpp

@@ -1247,12 +1247,12 @@ class FieldBlock
     {
         switch(ID)
         {
-        case FIELD_NAME:
-            return decodeRecord(R, I->Name, Blob);
         case FIELD_DEFAULT:
             return decodeRecord(R, I->Default, Blob);
         case FIELD_ATTRIBUTES:
             return decodeRecord(R, {&I->specs.raw}, Blob);
+        case FIELD_IS_MUTABLE:
+            return decodeRecord(R, I->IsMutable, Blob);
         default:
             return TopLevelBlock::parseRecord(R, ID, Blob);
         }

source/AST/BitcodeIDs.hpp

@@ -104,7 +104,7 @@ enum RecordID
     BASE_IS_VIRTUAL,
     FIELD_ATTRIBUTES,
     FIELD_DEFAULT,
-    FIELD_NAME,
+    FIELD_IS_MUTABLE,
     FUNCTION_BITS,
     FUNCTION_PARAM_NAME,
     FUNCTION_PARAM_DEFAULT,

source/AST/BitcodeWriter.cpp

@@ -242,9 +242,9 @@ RecordIDNameMap = []()
         {ENUM_VALUE_NAME, {"Name", &StringAbbrev}},
         {ENUM_VALUE_VALUE, {"Value", &StringAbbrev}},
         {ENUM_VALUE_EXPR, {"Expr", &StringAbbrev}},
-        {FIELD_NAME, {"Name", &StringAbbrev}},
         {FIELD_DEFAULT, {"DefaultValue", &StringAbbrev}},
         {FIELD_ATTRIBUTES, {"FieldAttributes", &Integer32ArrayAbbrev}},
+        {FIELD_IS_MUTABLE, {"FieldIsMutable", &BoolAbbrev}},
         {FUNCTION_BITS, {"Bits", &Integer32ArrayAbbrev}},
         {FUNCTION_PARAM_NAME, {"Name", &StringAbbrev}},
         {FUNCTION_PARAM_DEFAULT, {"Default", &StringAbbrev}},
@@ -322,7 +322,7 @@ RecordsByBlock{
         {ENUM_VALUE_NAME, ENUM_VALUE_VALUE, ENUM_VALUE_EXPR}},
     // FieldInfo
     {BI_FIELD_BLOCK_ID,
-        {FIELD_NAME, FIELD_DEFAULT, FIELD_ATTRIBUTES}},
+        {FIELD_DEFAULT, FIELD_ATTRIBUTES, FIELD_IS_MUTABLE}},
     // FunctionInfo
     {BI_FUNCTION_BLOCK_ID,
         {FUNCTION_BITS}},
@@ -790,9 +790,9 @@ emitBlock(
     emitInfoPart(F);
     emitSourceInfo(F, F);
     emitBlock(F.Type);
-    emitRecord(F.Name, FIELD_NAME);
     emitRecord(F.Default, FIELD_DEFAULT);
     emitRecord({F.specs.raw}, FIELD_ATTRIBUTES);
+    emitRecord(F.IsMutable, FIELD_IS_MUTABLE);
 }
 
 void

source/Metadata/Reduce.cpp

@@ -218,6 +218,7 @@ void merge(FieldInfo& I, FieldInfo&& Other)
     mergeSourceInfo(I, std::move(Other));
     mergeInfo(I, std::move(Other));
     I.specs.raw.value |= Other.specs.raw.value;
+    I.IsMutable |= Other.IsMutable;
     if(I.Default.empty())
         I.Default = std::move(Other.Default);
 }