commit 2aed6c0311ffc985d9ecc67ccbe29003f925dde4
author Jens Johansen <jensj@google.com> Fri Mar 22 11:42:24 2019 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> Fri Mar 22 11:42:24 2019 +0000
tree d72b34fde97229b30f75b94edaf1096f78aeea6c
parent 94e214bacce649487762f38ed9f5b9ceb94257d9

[CFE] >>> in fasta

Parser support was enabled a long time ago (under a flag;
52892f7c4789f4df11b2cdce376dc41c7968574a).
Enabling it would crash fasta though. This CL stops that from happening
and instead creates code that seems to work.

Change-Id: Ibe9735bd428104371ab34a1be08838988079220c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97621
Reviewed-by: Kevin Millikin <kmillikin@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>

pkg/front_end/lib/src/fasta/operator.dart

diff --git a/pkg/front_end/lib/src/fasta/operator.dart b/pkg/front_end/lib/src/fasta/operator.dart
index dad4440..1617a5a 100644
--- a/pkg/front_end/lib/src/fasta/operator.dart
+++ b/pkg/front_end/lib/src/fasta/operator.dart
@@ -25,6 +25,7 @@
   modulo,
   multiply,
   rightShift,
+  tripleShift,
   subtract,
   truncatingDivide,
   unaryMinus,
@@ -48,6 +49,7 @@
   if (identical("%", string)) return Operator.modulo;
   if (identical("*", string)) return Operator.multiply;
   if (identical(">>", string)) return Operator.rightShift;
+  if (identical(">>>", string)) return Operator.tripleShift;
   if (identical("-", string)) return Operator.subtract;
   if (identical("~/", string)) return Operator.truncatingDivide;
   if (identical("unary-", string)) return Operator.unaryMinus;
@@ -90,6 +92,8 @@
       return "*";
     case Operator.rightShift:
       return ">>";
+    case Operator.tripleShift:
+      return ">>>";
     case Operator.subtract:
       return "-";
     case Operator.truncatingDivide:
@@ -121,6 +125,7 @@
     case Operator.modulo:
     case Operator.multiply:
     case Operator.rightShift:
+    case Operator.tripleShift:
     case Operator.subtract:
     case Operator.truncatingDivide:
       return 1;

pkg/front_end/lib/src/fasta/scanner/token.dart

diff --git a/pkg/front_end/lib/src/fasta/scanner/token.dart b/pkg/front_end/lib/src/fasta/scanner/token.dart
index f10081d..26ab536 100644
--- a/pkg/front_end/lib/src/fasta/scanner/token.dart
+++ b/pkg/front_end/lib/src/fasta/scanner/token.dart
@@ -299,6 +299,7 @@
       identical(value, "+") ||
       identical(value, "<<") ||
       identical(value, ">>") ||
+      identical(value, ">>>") ||
       identical(value, ">=") ||
       identical(value, ">") ||
       identical(value, "<=") ||