Crash with an error message when ICU data files are missing

src/i18n.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 // limitations under the License.
 
 #include "src/i18n.h"
 
 #include "unicode/brkiter.h"
 #include "unicode/calendar.h"
 #include "unicode/coll.h"
@@ skipping 686 matching lines @@
     icu_locale = icu::Locale(icu_result);
   }
 
   icu::SimpleDateFormat* date_format = CreateICUDateFormat(
       isolate, icu_locale, options);
   if (!date_format) {
     // Remove extensions and try again.
     icu::Locale no_extension_locale(icu_locale.getBaseName());
     date_format = CreateICUDateFormat(isolate, no_extension_locale, options);
 
+    if (!date_format) {
+      FATAL("Failed to create ICU date format, are ICU data files missing?");
+    }
+
     // Set resolved settings (pattern, numbering system, calendar).
     SetResolvedDateSettings(
         isolate, no_extension_locale, date_format, resolved);
   } else {
     SetResolvedDateSettings(isolate, icu_locale, date_format, resolved);
   }
 
   return date_format;
 }
 
@@ skipping 56 matching lines @@
   }
 
   icu::DecimalFormat* number_format =
       CreateICUNumberFormat(isolate, icu_locale, options);
   if (!number_format) {
     // Remove extensions and try again.
     icu::Locale no_extension_locale(icu_locale.getBaseName());
     number_format = CreateICUNumberFormat(
         isolate, no_extension_locale, options);
 
+    if (!number_format) {
+      FATAL("Failed to create ICU number format, are ICU data files missing?");
+    }
+
     // Set resolved settings (pattern, numbering system).
     SetResolvedNumberSettings(
         isolate, no_extension_locale, number_format, resolved);
   } else {
     SetResolvedNumberSettings(isolate, icu_locale, number_format, resolved);
   }
 
   return number_format;
 }
 
@@ skipping 39 matching lines @@
     }
     icu_locale = icu::Locale(icu_result);
   }
 
   icu::Collator* collator = CreateICUCollator(isolate, icu_locale, options);
   if (!collator) {
     // Remove extensions and try again.
     icu::Locale no_extension_locale(icu_locale.getBaseName());
     collator = CreateICUCollator(isolate, no_extension_locale, options);
 
+    if (!collator) {
+      FATAL("Failed to create ICU collator, are ICU data files missing?");
+    }
+
     // Set resolved settings (pattern, numbering system).
     SetResolvedCollatorSettings(
         isolate, no_extension_locale, collator, resolved);
   } else {
     SetResolvedCollatorSettings(isolate, icu_locale, collator, resolved);
   }
 
   return collator;
 }
 
@@ skipping 39 matching lines @@
   }
 
   icu::BreakIterator* break_iterator = CreateICUBreakIterator(
       isolate, icu_locale, options);
   if (!break_iterator) {
     // Remove extensions and try again.
     icu::Locale no_extension_locale(icu_locale.getBaseName());
     break_iterator = CreateICUBreakIterator(
         isolate, no_extension_locale, options);
 
+    if (!break_iterator) {
+      FATAL("Failed to create ICU break iterator, are ICU data files missing?");
+    }
+
     // Set resolved settings (locale).
     SetResolvedBreakIteratorSettings(
         isolate, no_extension_locale, break_iterator, resolved);
   } else {
     SetResolvedBreakIteratorSettings(
         isolate, icu_locale, break_iterator, resolved);
   }
 
   return break_iterator;
 }
@@ skipping 14 matching lines @@
 
 
 void BreakIterator::DeleteBreakIterator(
     const v8::WeakCallbackData<v8::Value, void>& data) {
   DeleteNativeObjectAt<icu::BreakIterator>(data, 0);
   DeleteNativeObjectAt<icu::UnicodeString>(data, 1);
   DestroyGlobalHandle(data);
 }
 
 } }  // namespace v8::internal