Get sort version dynamically and expose ICU version from native component (#13382)

* Support ICU Version

* Add the assert

3 files changed, 33 insertions, 6 deletions

diff --git a/src/corefx/System.Globalization.Native/collation.cpp b/src/corefx/System.Globalization.Native/collation.cpp
index a8c24e16ad..3aefae2a6a 100644
--- a/src/corefx/System.Globalization.Native/collation.cpp
+++ b/src/corefx/System.Globalization.Native/collation.cpp
@@ -327,12 +327,6 @@ bool CanIgnoreAllCollationElements(const UCollator* pColl, const UChar* lpStr, i
 
 }
 
-extern "C" int32_t GlobalizationNative_GetSortVersion()
-{
-    // we didn't use UCOL_TAILORINGS_VERSION because it is deprecated in ICU v5
-    return UCOL_RUNTIME_VERSION << 16 | UCOL_BUILDER_VERSION;
-}
-
 extern "C" ResultCode GlobalizationNative_GetSortHandle(const char* lpLocaleName, SortHandle** ppSortHandle)
 {
     assert(ppSortHandle != nullptr);
@@ -407,6 +401,26 @@ const UCollator* GetCollatorFromSortHandle(SortHandle* pSortHandle, int32_t opti
     return pCollator;
 }
 
+extern "C" int32_t GlobalizationNative_GetSortVersion(SortHandle* pSortHandle)
+{
+    UErrorCode err = U_ZERO_ERROR;
+    const UCollator* pColl = GetCollatorFromSortHandle(pSortHandle, 0, &err);
+    int32_t result = 0;
+
+    if (U_SUCCESS(err))
+    {
+        ucol_getVersion(pColl, (uint8_t *) &result);
+    }
+    else
+    {
+        assert(false && "Unexpected ucol_getVersion to fail.");
+
+        // we didn't use UCOL_TAILORINGS_VERSION because it is deprecated in ICU v5
+        result = UCOL_RUNTIME_VERSION << 16 | UCOL_BUILDER_VERSION;
+    }
+    return result;
+}
+
 /*
 Function:
 CompareString
diff --git a/src/corefx/System.Globalization.Native/icushim.cpp b/src/corefx/System.Globalization.Native/icushim.cpp
index 6e7817e85f..e97896a205 100644
--- a/src/corefx/System.Globalization.Native/icushim.cpp
+++ b/src/corefx/System.Globalization.Native/icushim.cpp
@@ -270,6 +270,15 @@ extern "C" int32_t GlobalizationNative_LoadICU()
     return 1;
 }
 
+// GlobalizationNative_GetICUVersion
+// return the current loaded ICU version
+extern "C" int32_t GlobalizationNative_GetICUVersion()
+{
+    int32_t version;
+    u_getVersion((uint8_t *) &version);
+    return version; 
+}
+
 __attribute__((destructor))
 void ShutdownICUShim()
 {
diff --git a/src/corefx/System.Globalization.Native/icushim.h b/src/corefx/System.Globalization.Native/icushim.h
index 313002ebb6..d7ec2fb05c 100644
--- a/src/corefx/System.Globalization.Native/icushim.h
+++ b/src/corefx/System.Globalization.Native/icushim.h
@@ -38,6 +38,7 @@
 // List of all functions from the ICU libraries that are used in the System.Globalization.Native.so
 #define FOR_ALL_UNCONDITIONAL_ICU_FUNCTIONS \
     PER_FUNCTION_BLOCK(u_charsToUChars, libicuuc) \
+    PER_FUNCTION_BLOCK(u_getVersion, libicuuc) \
     PER_FUNCTION_BLOCK(u_strlen, libicuuc) \
     PER_FUNCTION_BLOCK(u_strncpy, libicuuc) \
     PER_FUNCTION_BLOCK(u_tolower, libicuuc) \
@@ -56,6 +57,7 @@
     PER_FUNCTION_BLOCK(ucol_getRules, libicui18n) \
     PER_FUNCTION_BLOCK(ucol_getSortKey, libicui18n) \
     PER_FUNCTION_BLOCK(ucol_getStrength, libicui18n) \
+    PER_FUNCTION_BLOCK(ucol_getVersion, libicui18n) \
     PER_FUNCTION_BLOCK(ucol_next, libicui18n) \
     PER_FUNCTION_BLOCK(ucol_open, libicui18n) \
     PER_FUNCTION_BLOCK(ucol_openElements, libicui18n) \
@@ -143,6 +145,7 @@ FOR_ALL_ICU_FUNCTIONS
 // Redefine all calls to ICU functions as calls through pointers that are set
 // to the functions of the selected version of ICU in the initialization.
 #define u_charsToUChars(...) u_charsToUChars_ptr(__VA_ARGS__)
+#define u_getVersion(...) u_getVersion_ptr(__VA_ARGS__)
 #define u_strlen(...) u_strlen_ptr(__VA_ARGS__)
 #define u_strncpy(...) u_strncpy_ptr(__VA_ARGS__)
 #define u_tolower(...) u_tolower_ptr(__VA_ARGS__)
@@ -161,6 +164,7 @@ FOR_ALL_ICU_FUNCTIONS
 #define ucol_getRules(...) ucol_getRules_ptr(__VA_ARGS__)
 #define ucol_getSortKey(...) ucol_getSortKey_ptr(__VA_ARGS__)
 #define ucol_getStrength(...) ucol_getStrength_ptr(__VA_ARGS__)
+#define ucol_getVersion(...) ucol_getVersion_ptr(__VA_ARGS__)
 #define ucol_next(...) ucol_next_ptr(__VA_ARGS__)
 #define ucol_open(...) ucol_open_ptr(__VA_ARGS__)
 #define ucol_openElements(...) ucol_openElements_ptr(__VA_ARGS__)