1 files changed, 131 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/number_symbolswrapper.cpp b/intl/icu/source/i18n/number_symbolswrapper.cpp
new file mode 100644
index 0000000000..4742a69c1f
--- /dev/null
+++ b/intl/icu/source/i18n/number_symbolswrapper.cpp
@@ -0,0 +1,131 @@
+// © 2020 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "number_microprops.h"
+#include "unicode/numberformatter.h"
+
+using namespace icu;
+using namespace icu::number;
+using namespace icu::number::impl;
+
+SymbolsWrapper::SymbolsWrapper(const SymbolsWrapper &other) {
+    doCopyFrom(other);
+}
+
+SymbolsWrapper::SymbolsWrapper(SymbolsWrapper &&src) noexcept {
+    doMoveFrom(std::move(src));
+}
+
+SymbolsWrapper &SymbolsWrapper::operator=(const SymbolsWrapper &other) {
+    if (this == &other) {
+        return *this;
+    }
+    doCleanup();
+    doCopyFrom(other);
+    return *this;
+}
+
+SymbolsWrapper &SymbolsWrapper::operator=(SymbolsWrapper &&src) noexcept {
+    if (this == &src) {
+        return *this;
+    }
+    doCleanup();
+    doMoveFrom(std::move(src));
+    return *this;
+}
+
+SymbolsWrapper::~SymbolsWrapper() {
+    doCleanup();
+}
+
+void SymbolsWrapper::setTo(const DecimalFormatSymbols &dfs) {
+    doCleanup();
+    fType = SYMPTR_DFS;
+    fPtr.dfs = new DecimalFormatSymbols(dfs);
+}
+
+void SymbolsWrapper::setTo(const NumberingSystem *ns) {
+    doCleanup();
+    fType = SYMPTR_NS;
+    fPtr.ns = ns;
+}
+
+void SymbolsWrapper::doCopyFrom(const SymbolsWrapper &other) {
+    fType = other.fType;
+    switch (fType) {
+    case SYMPTR_NONE:
+        // No action necessary
+        break;
+    case SYMPTR_DFS:
+        // Memory allocation failures are exposed in copyErrorTo()
+        if (other.fPtr.dfs != nullptr) {
+            fPtr.dfs = new DecimalFormatSymbols(*other.fPtr.dfs);
+        } else {
+            fPtr.dfs = nullptr;
+        }
+        break;
+    case SYMPTR_NS:
+        // Memory allocation failures are exposed in copyErrorTo()
+        if (other.fPtr.ns != nullptr) {
+            fPtr.ns = new NumberingSystem(*other.fPtr.ns);
+        } else {
+            fPtr.ns = nullptr;
+        }
+        break;
+    }
+}
+
+void SymbolsWrapper::doMoveFrom(SymbolsWrapper &&src) {
+    fType = src.fType;
+    switch (fType) {
+    case SYMPTR_NONE:
+        // No action necessary
+        break;
+    case SYMPTR_DFS:
+        fPtr.dfs = src.fPtr.dfs;
+        src.fPtr.dfs = nullptr;
+        break;
+    case SYMPTR_NS:
+        fPtr.ns = src.fPtr.ns;
+        src.fPtr.ns = nullptr;
+        break;
+    }
+}
+
+void SymbolsWrapper::doCleanup() {
+    switch (fType) {
+    case SYMPTR_NONE:
+        // No action necessary
+        break;
+    case SYMPTR_DFS:
+        delete fPtr.dfs;
+        break;
+    case SYMPTR_NS:
+        delete fPtr.ns;
+        break;
+    }
+}
+
+bool SymbolsWrapper::isDecimalFormatSymbols() const {
+    return fType == SYMPTR_DFS;
+}
+
+bool SymbolsWrapper::isNumberingSystem() const {
+    return fType == SYMPTR_NS;
+}
+
+const DecimalFormatSymbols *SymbolsWrapper::getDecimalFormatSymbols() const {
+    U_ASSERT(fType == SYMPTR_DFS);
+    return fPtr.dfs;
+}
+
+const NumberingSystem *SymbolsWrapper::getNumberingSystem() const {
+    U_ASSERT(fType == SYMPTR_NS);
+    return fPtr.ns;
+}
+
+#endif /* #if !UCONFIG_NO_FORMATTING */