Merge null safety branch into master (#56)

* migrate fixnum to null safety (flutter#55)

Primarily this is just removing a bunch of dynamic params and converting them to Object, and then removing some of the explicit tests around null args that are no longer valid statically in the test.

Note that the runtime argument errors are still present, and I left the tests in for argumentErrorTest which effectively validates the non-opted in users calling these functions still get the same behavior.

We could restore some of the other tests that I deleted to do a similar thing, if we think its worth while.

.travis.yml

@@ -1,20 +1,34 @@
 language: dart
 
 dart:
- - 2.1.1
- - dev
+ - be/raw/latest
 
-dart_task:
- - test: --platform vm
-   xvfb: false
- - test: --platform chrome
- - dartanalyzer: --fatal-warnings --fatal-infos .
-
-matrix:
+jobs:
   include:
-  # Only validate formatting using the dev release
-  - dart: dev
-    dart_task: dartfmt
+    - stage: analyze_and_format
+      name: "Analyzer"
+      dart: be/raw/latest
+      os: linux
+      script: dartanalyzer --enable-experiment=non-nullable --fatal-warnings --fatal-infos .
+    - stage: analyze_and_format
+      name: "Format"
+      dart: be/raw/latest
+      os: linux
+      script: dartfmt -n --set-exit-if-changed .
+    - stage: test
+      name: "Vm Tests"
+      dart: be/raw/latest
+      os: linux
+      script: pub run --enable-experiment=non-nullable test -p vm 
+    - stage: test
+      name: "Web Tests"
+      dart: be/raw/latest
+      os: linux
+      script: pub run --enable-experiment=non-nullable test -p chrome
+
+stages:
+  - analyze_and_format
+  - test
 
 # Only building master means that we don't run two builds for each pull request.
 branches:

CHANGELOG.md

@@ -1,3 +1,10 @@
+## 1.0.0-dev
+
+* Migrate to null safety.
+  * This is meant to be mostly non-breaking, for opted in users runtime errors
+    will be promoted to static errors. For non-opted in users the runtime
+    errors are still present in their original form.
+
 ## 0.10.11
 
 * Update minimum SDK constraint to version 2.1.1.

analysis_options.yaml

@@ -2,6 +2,9 @@ include: package:pedantic/analysis_options.yaml
 analyzer:
   strong-mode:
     implicit-casts: false
+  enable-experiment:
+    - non-nullable
+
 linter:
   rules:
     - avoid_function_literals_in_foreach_calls

lib/src/int32.dart

@@ -122,7 +122,7 @@ class Int32 implements IntX {
 
   // Returns the [int] representation of the specified value. Throws
   // [ArgumentError] for non-integer arguments.
-  int _toInt(val) {
+  int _toInt(Object val) {
     if (val is Int32) {
       return val._i;
     } else if (val is int) {
@@ -146,15 +146,15 @@ class Int32 implements IntX {
   // Int32 % Int64 => Int32
 
   @override
-  IntX operator +(other) {
+  IntX operator +(Object other) {
     if (other is Int64) {
       return toInt64() + other;
     }
     return Int32(_i + _toInt(other));
   }
 
   @override
-  IntX operator -(other) {
+  IntX operator -(Object other) {
     if (other is Int64) {
       return toInt64() - other;
     }
@@ -165,7 +165,7 @@ class Int32 implements IntX {
   Int32 operator -() => Int32(-_i);
 
   @override
-  IntX operator *(other) {
+  IntX operator *(Object other) {
     if (other is Int64) {
       return toInt64() * other;
     }
@@ -174,7 +174,7 @@ class Int32 implements IntX {
   }
 
   @override
-  Int32 operator %(other) {
+  Int32 operator %(Object other) {
     if (other is Int64) {
       // Result will be Int32
       return (toInt64() % other).toInt32();
@@ -183,15 +183,15 @@ class Int32 implements IntX {
   }
 
   @override
-  Int32 operator ~/(other) {
+  Int32 operator ~/(Object other) {
     if (other is Int64) {
       return (toInt64() ~/ other).toInt32();
     }
     return Int32(_i ~/ _toInt(other));
   }
 
   @override
-  Int32 remainder(other) {
+  Int32 remainder(Object other) {
     if (other is Int64) {
       var t = toInt64();
       return (t - (t ~/ other) * other).toInt32();
@@ -200,23 +200,23 @@ class Int32 implements IntX {
   }
 
   @override
-  Int32 operator &(other) {
+  Int32 operator &(Object other) {
     if (other is Int64) {
       return (toInt64() & other).toInt32();
     }
     return Int32(_i & _toInt(other));
   }
 
   @override
-  Int32 operator |(other) {
+  Int32 operator |(Object other) {
     if (other is Int64) {
       return (toInt64() | other).toInt32();
     }
     return Int32(_i | _toInt(other));
   }
 
   @override
-  Int32 operator ^(other) {
+  Int32 operator ^(Object other) {
     if (other is Int64) {
       return (toInt64() ^ other).toInt32();
     }
@@ -274,7 +274,7 @@ class Int32 implements IntX {
   /// Returns [:true:] if this [Int32] has the same numeric value as the
   /// given object.  The argument may be an [int] or an [IntX].
   @override
-  bool operator ==(other) {
+  bool operator ==(Object other) {
     if (other is Int32) {
       return _i == other._i;
     } else if (other is Int64) {
@@ -286,39 +286,39 @@ class Int32 implements IntX {
   }
 
   @override
-  int compareTo(other) {
+  int compareTo(Object other) {
     if (other is Int64) {
       return toInt64().compareTo(other);
     }
     return _i.compareTo(_toInt(other));
   }
 
   @override
-  bool operator <(other) {
+  bool operator <(Object other) {
     if (other is Int64) {
       return toInt64() < other;
     }
     return _i < _toInt(other);
   }
 
   @override
-  bool operator <=(other) {
+  bool operator <=(Object other) {
     if (other is Int64) {
       return toInt64() <= other;
     }
     return _i <= _toInt(other);
   }
 
   @override
-  bool operator >(other) {
+  bool operator >(Object other) {
     if (other is Int64) {
       return toInt64() > other;
     }
     return _i > _toInt(other);
   }
 
   @override
-  bool operator >=(other) {
+  bool operator >=(Object other) {
     if (other is Int64) {
       return toInt64() >= other;
     }
@@ -353,7 +353,7 @@ class Int32 implements IntX {
   Int32 abs() => _i < 0 ? Int32(-_i) : this;
 
   @override
-  Int32 clamp(lowerLimit, upperLimit) {
+  Int32 clamp(Object lowerLimit, Object upperLimit) {
     if (this < lowerLimit) {
       if (lowerLimit is IntX) return lowerLimit.toInt32();
       if (lowerLimit is int) return Int32(lowerLimit);
@@ -386,7 +386,7 @@ class Int32 implements IntX {
 
   @override
   List<int> toBytes() {
-    var result = List<int>(4);
+    var result = List<int>.filled(4, 0);
     result[0] = _i & 0xff;
     result[1] = (_i >> 8) & 0xff;
     result[2] = (_i >> 16) & 0xff;

lib/src/int64.dart

@@ -198,7 +198,7 @@ class Int64 implements IntX {
   }
 
   @override
-  Int64 operator +(other) {
+  Int64 operator +(Object other) {
     Int64 o = _promote(other);
     int sum0 = _l + o._l;
     int sum1 = _m + o._m + (sum0 >> _BITS);
@@ -207,7 +207,7 @@ class Int64 implements IntX {
   }
 
   @override
-  Int64 operator -(other) {
+  Int64 operator -(Object other) {
     Int64 o = _promote(other);
     return _sub(_l, _m, _h, o._l, o._m, o._h);
   }
@@ -216,7 +216,7 @@ class Int64 implements IntX {
   Int64 operator -() => _negate(_l, _m, _h);
 
   @override
-  Int64 operator *(other) {
+  Int64 operator *(Object other) {
     Int64 o = _promote(other);
 
     // Grab 13-bit chunks.
@@ -298,16 +298,16 @@ class Int64 implements IntX {
   }
 
   @override
-  Int64 operator %(other) => _divide(this, other, _RETURN_MOD);
+  Int64 operator %(Object other) => _divide(this, other, _RETURN_MOD);
 
   @override
-  Int64 operator ~/(other) => _divide(this, other, _RETURN_DIV);
+  Int64 operator ~/(Object other) => _divide(this, other, _RETURN_DIV);
 
   @override
-  Int64 remainder(other) => _divide(this, other, _RETURN_REM);
+  Int64 remainder(Object other) => _divide(this, other, _RETURN_REM);
 
   @override
-  Int64 operator &(other) {
+  Int64 operator &(Object other) {
     Int64 o = _promote(other);
     int a0 = _l & o._l;
     int a1 = _m & o._m;
@@ -316,7 +316,7 @@ class Int64 implements IntX {
   }
 
   @override
-  Int64 operator |(other) {
+  Int64 operator |(Object other) {
     Int64 o = _promote(other);
     int a0 = _l | o._l;
     int a1 = _m | o._m;
@@ -325,7 +325,7 @@ class Int64 implements IntX {
   }
 
   @override
-  Int64 operator ^(other) {
+  Int64 operator ^(Object other) {
     Int64 o = _promote(other);
     int a0 = _l ^ o._l;
     int a1 = _m ^ o._m;
@@ -442,8 +442,8 @@ class Int64 implements IntX {
   /// Returns [:true:] if this [Int64] has the same numeric value as the
   /// given object.  The argument may be an [int] or an [IntX].
   @override
-  bool operator ==(other) {
-    Int64 o;
+  bool operator ==(Object other) {
+    Int64? o;
     if (other is Int64) {
       o = other;
     } else if (other is int) {
@@ -462,9 +462,9 @@ class Int64 implements IntX {
   }
 
   @override
-  int compareTo(other) => _compareTo(other);
+  int compareTo(Object other) => _compareTo(other);
 
-  int _compareTo(other) {
+  int _compareTo(Object other) {
     Int64 o = _promote(other);
     int signa = _h >> (_BITS2 - 1);
     int signb = o._h >> (_BITS2 - 1);
@@ -490,16 +490,16 @@ class Int64 implements IntX {
   }
 
   @override
-  bool operator <(other) => _compareTo(other) < 0;
+  bool operator <(Object other) => _compareTo(other) < 0;
 
   @override
-  bool operator <=(other) => _compareTo(other) <= 0;
+  bool operator <=(Object other) => _compareTo(other) <= 0;
 
   @override
-  bool operator >(other) => _compareTo(other) > 0;
+  bool operator >(Object other) => _compareTo(other) > 0;
 
   @override
-  bool operator >=(other) => _compareTo(other) >= 0;
+  bool operator >=(Object other) => _compareTo(other) >= 0;
 
   @override
   bool get isEven => (_l & 0x1) == 0;
@@ -549,7 +549,7 @@ class Int64 implements IntX {
   }
 
   @override
-  Int64 clamp(lowerLimit, upperLimit) {
+  Int64 clamp(Object lowerLimit, Object upperLimit) {
     Int64 lower = _promote(lowerLimit);
     Int64 upper = _promote(upperLimit);
     if (this < lower) return lower;
@@ -631,7 +631,7 @@ class Int64 implements IntX {
 
   @override
   List<int> toBytes() {
-    List<int> result = List<int>(8);
+    var result = List<int>.filled(8, 0);
     result[0] = _l & 0xff;
     result[1] = (_l >> 8) & 0xff;
     result[2] = ((_m << 6) & 0xfc) | ((_l >> 16) & 0x3f);