SERVER-38826 Export yaml constant values as C++ constexprs

3 files changed, 15 insertions, 2 deletions

diff --git a/src/mongo/idl/server_parameter_with_storage_test.cpp b/src/mongo/idl/server_parameter_with_storage_test.cpp
index 547e5ad23e5..eacbeeb94bd 100644
--- a/src/mongo/idl/server_parameter_with_storage_test.cpp
+++ b/src/mongo/idl/server_parameter_with_storage_test.cpp
@@ -258,5 +258,12 @@ TEST(IDLServerParameterWithStorage, startupIntWithExpressions) {
     ASSERT_EQ(test::gStartupIntWithExpressions, test::kStartupIntWithExpressionsMaximum);
 }
 
+TEST(IDLServerParameterWithStorage, exportedDefaults) {
+    ASSERT_EQ(test::kStdIntPreallocatedDefault, 11);
+    ASSERT_EQ(test::kStdIntDeclaredDefault, 42);
+    ASSERT_EQ(test::kStartupIntWithExpressionsDefault, 100);
+    ASSERT_EQ(test::kUgly_complicated_name_spDefault, true);
+}
+
 }  // namespace
 }  // namespace mongo
diff --git a/src/mongo/idl/server_parameter_with_storage_test.h b/src/mongo/idl/server_parameter_with_storage_test.h
index 3aedab52ac0..57f12e6aa15 100644
--- a/src/mongo/idl/server_parameter_with_storage_test.h
+++ b/src/mongo/idl/server_parameter_with_storage_test.h
@@ -36,7 +36,6 @@
 namespace mongo {
 namespace test {
 
-constexpr std::int32_t kStartupIntWithExpressionsDefault = 100;
 constexpr std::int32_t kStartupIntWithExpressionsMinimum = 10;
 constexpr std::int32_t kStartupIntWithExpressionsMaximum = 1000;
 
diff --git a/src/mongo/idl/server_parameter_with_storage_test.idl b/src/mongo/idl/server_parameter_with_storage_test.idl
index 3e310375f5b..bc985613bac 100644
--- a/src/mongo/idl/server_parameter_with_storage_test.idl
+++ b/src/mongo/idl/server_parameter_with_storage_test.idl
@@ -76,8 +76,15 @@ server_parameters:
     description: "Use of c++ expressions in default and validators"
     cpp_vartype: "std::int32_t"
     cpp_varname: gStartupIntWithExpressions
-    default: { expr: kStartupIntWithExpressionsDefault }
+    default: 100
     validator:
         gte: { expr: kStartupIntWithExpressionsMinimum, is_constexpr: false }
         lte: { expr: kStartupIntWithExpressionsMaximum, is_constexpr: true }
 
+  'ugly complicated-name.sp':
+    set_at: startup
+    description: "Verify exported symbols are properly reformatted"
+    cpp_vartype: bool
+    cpp_varname: gUglyComplicatedNameSp
+    default: true
+