deps: ICU 59.1 bump

* No feature changes.
* Bug fixes.
* Details: http://site.icu-project.org/download/59

Fixes: https://github.com/nodejs/node/issues/12077
PR-URL: https://github.com/nodejs/node/pull/12486
Refs: https://github.com/nodejs/node/issues/7844
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>

1 files changed, 49 insertions, 2 deletions

diff --git a/deps/icu-small/source/i18n/unicode/rbnf.h b/deps/icu-small/source/i18n/unicode/rbnf.h
index 14230f8982..b4cbb06732 100644
--- a/deps/icu-small/source/i18n/unicode/rbnf.h
+++ b/deps/icu-small/source/i18n/unicode/rbnf.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// © 2016 and later: Unicode, Inc. and others.
 // License & terms of use: http://www.unicode.org/copyright.html
 /*
 *******************************************************************************
@@ -866,6 +866,52 @@ public:
                                 FieldPosition& pos,
                                 UErrorCode& status) const;
 
+protected:
+    /**
+     * Format a decimal number.
+     * The number is a DigitList wrapper onto a floating point decimal number.
+     * The default implementation in NumberFormat converts the decimal number
+     * to a double and formats that.  Subclasses of NumberFormat that want
+     * to specifically handle big decimal numbers must override this method.
+     * class DecimalFormat does so.
+     *
+     * @param number    The number, a DigitList format Decimal Floating Point.
+     * @param appendTo  Output parameter to receive result.
+     *                  Result is appended to existing contents.
+     * @param posIter   On return, can be used to iterate over positions
+     *                  of fields generated by this format call.
+     * @param status    Output param filled with success/failure status.
+     * @return          Reference to 'appendTo' parameter.
+     * @internal
+     */
+    virtual UnicodeString& format(const DigitList &number,
+                                  UnicodeString& appendTo,
+                                  FieldPositionIterator* posIter,
+                                  UErrorCode& status) const;
+
+    /**
+     * Format a decimal number.
+     * The number is a DigitList wrapper onto a floating point decimal number.
+     * The default implementation in NumberFormat converts the decimal number
+     * to a double and formats that.  Subclasses of NumberFormat that want
+     * to specifically handle big decimal numbers must override this method.
+     * class DecimalFormat does so.
+     *
+     * @param number    The number, a DigitList format Decimal Floating Point.
+     * @param appendTo  Output parameter to receive result.
+     *                  Result is appended to existing contents.
+     * @param pos       On input: an alignment field, if desired.
+     *                  On output: the offsets of the alignment field.
+     * @param status    Output param filled with success/failure status.
+     * @return          Reference to 'appendTo' parameter.
+     * @internal
+     */
+    virtual UnicodeString& format(const DigitList &number,
+                                  UnicodeString& appendTo,
+                                  FieldPosition& pos,
+                                  UErrorCode& status) const;
+public:
+
   using NumberFormat::parse;
 
   /**
@@ -1031,7 +1077,8 @@ private:
     NFRule * initializeDefaultNaNRule(UErrorCode &status);
     const NFRule * getDefaultNaNRule() const;
     PluralFormat *createPluralFormat(UPluralType pluralType, const UnicodeString &pattern, UErrorCode& status) const;
-    UnicodeString& adjustForCapitalizationContext(int32_t startPos, UnicodeString& currentResult) const;
+    UnicodeString& adjustForCapitalizationContext(int32_t startPos, UnicodeString& currentResult, UErrorCode& status) const;
+    UnicodeString& format(int64_t number, NFRuleSet *ruleSet, UnicodeString& toAppendTo, UErrorCode& status) const;
 
 private:
     NFRuleSet **ruleSets;