MeshTools: fix more unused var warnings on a non-deprecated build.

src/Magnum/MeshTools/Combine.cpp

@@ -189,12 +189,11 @@ Trade::MeshData combineFaceAttributes(const Trade::MeshData& mesh, const Trade::
     CORRADE_ASSERT(!isMeshIndexTypeImplementationSpecific(meshIndexType),
         "MeshTools::combineFaceAttributes(): vertex mesh has an implementation-specific index type" << reinterpret_cast<void*>(meshIndexTypeUnwrap(meshIndexType)),
         (Trade::MeshData{MeshPrimitive{}, 0}));
-    const UnsignedInt meshIndexSize = meshIndexTypeSize(mesh.indexType());
+    const UnsignedInt meshIndexSize = meshIndexTypeSize(meshIndexType);
     UnsignedInt faceIndexSize;
     if(faceAttributes.isIndexed()) {
-        const MeshIndexType faceIndexType = faceAttributes.indexType();
-        CORRADE_ASSERT(!isMeshIndexTypeImplementationSpecific(faceIndexType),
-            "MeshTools::combineFaceAttributes(): face mesh has an implementation-specific index type" << reinterpret_cast<void*>(meshIndexTypeUnwrap(faceIndexType)),
+        CORRADE_ASSERT(!isMeshIndexTypeImplementationSpecific(faceAttributes.indexType()),
+            "MeshTools::combineFaceAttributes(): face mesh has an implementation-specific index type" << reinterpret_cast<void*>(meshIndexTypeUnwrap(faceAttributes.indexType())),
             (Trade::MeshData{MeshPrimitive{}, 0}));
         faceIndexSize = meshIndexTypeSize(faceAttributes.indexType());
     } else faceIndexSize = 4;

src/Magnum/MeshTools/Interleave.cpp

@@ -139,9 +139,8 @@ Containers::Array<Trade::MeshAttributeData> interleavedLayout(Trade::MeshData&&
         stride = 0;
         minOffset = 0;
         for(UnsignedInt i = 0, max = data.attributeCount(); i != max; ++i) {
-            const VertexFormat format = data.attributeFormat(i);
-            CORRADE_ASSERT(!isVertexFormatImplementationSpecific(format),
-                "MeshTools::interleavedLayout(): attribute" << i << "has an implementation-specific format" << reinterpret_cast<void*>(vertexFormatUnwrap(format)), {});
+            CORRADE_ASSERT(!isVertexFormatImplementationSpecific(data.attributeFormat(i)),
+                "MeshTools::interleavedLayout(): attribute" << i << "has an implementation-specific format" << reinterpret_cast<void*>(vertexFormatUnwrap(data.attributeFormat(i))), {});
             stride += attributeSize(data, i);
         }
     }
@@ -149,12 +148,12 @@ Containers::Array<Trade::MeshAttributeData> interleavedLayout(Trade::MeshData&&
     /* Add the extra attributes and explicit padding */
     std::size_t extraAttributeCount = 0;
     for(std::size_t i = 0; i != extra.size(); ++i) {
-        if(extra[i].format() == VertexFormat{}) {
+        const VertexFormat format = extra[i].format();
+        if(format == VertexFormat{}) {
             CORRADE_ASSERT(extra[i].stride() > 0 || stride >= std::size_t(-extra[i].stride()),
                 "MeshTools::interleavedLayout(): negative padding" << extra[i].stride() << "in extra attribute" << i << "too large for stride" << stride, {});
             stride += extra[i].stride();
         } else {
-            const VertexFormat format = extra[i].format();
             CORRADE_ASSERT(!isVertexFormatImplementationSpecific(format),
                 "MeshTools::interleavedLayout(): extra attribute" << i << "has an implementation-specific format" << reinterpret_cast<void*>(vertexFormatUnwrap(format)), {});
             stride += attributeSize(extra[i]);