fuzz: Run const CScript member functions only once

src/test/fuzz/script_ops.cpp

@@ -14,34 +14,35 @@
 FUZZ_TARGET(script_ops)
 {
     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
-    CScript script = ConsumeScript(fuzzed_data_provider);
+    CScript script_mut = ConsumeScript(fuzzed_data_provider);
     while (fuzzed_data_provider.remaining_bytes() > 0) {
         CallOneOf(
             fuzzed_data_provider,
             [&] {
                 CScript s = ConsumeScript(fuzzed_data_provider);
-                script = std::move(s);
+                script_mut = std::move(s);
             },
             [&] {
                 const CScript& s = ConsumeScript(fuzzed_data_provider);
-                script = s;
+                script_mut = s;
             },
             [&] {
-                script << fuzzed_data_provider.ConsumeIntegral<int64_t>();
+                script_mut << fuzzed_data_provider.ConsumeIntegral<int64_t>();
             },
             [&] {
-                script << ConsumeOpcodeType(fuzzed_data_provider);
+                script_mut << ConsumeOpcodeType(fuzzed_data_provider);
             },
             [&] {
-                script << ConsumeScriptNum(fuzzed_data_provider);
+                script_mut << ConsumeScriptNum(fuzzed_data_provider);
             },
             [&] {
-                script << ConsumeRandomLengthByteVector(fuzzed_data_provider);
-            },
-            [&] {
-                script.clear();
+                script_mut << ConsumeRandomLengthByteVector(fuzzed_data_provider);
             },
             [&] {
+                script_mut.clear();
+            });
+    }
+    const CScript& script = script_mut;
     (void)script.GetSigOpCount(false);
     (void)script.GetSigOpCount(true);
     (void)script.GetSigOpCount(script);
@@ -63,6 +64,4 @@ FUZZ_TARGET(script_ops)
         std::vector<uint8_t> program;
         (void)script.IsWitnessProgram(version, program);
     }
-            });
-    }
 }