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Add contracts for System.Version #318

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SergeyTeplyakov merged 3 commits into from
Jan 26, 2016
Merged

Add contracts for System.Version #318

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3bc4a0d
Add contracts for System.Version
yaakov-h Dec 1, 2015
ccc8478
Add postconditions to System.Version properties
yaakov-h Dec 1, 2015
90285da
Fix return types of System.Version MajorRevision/MinorRevision
yaakov-h Dec 2, 2015
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3 changes: 1 addition & 2 deletions Microsoft.Research/Contracts/MsCorlib/MsCorlib.Contracts10.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -351,7 +351,6 @@
<!-- <Compile Include="System.ArgumentException.cs" /> -->
<!-- <Compile Include="System.ArgumentOutOfRangeException.cs" /> -->
<Compile Include="Sources\System.OperatingSystem.cs" />
<Compile Include="Sources\System.Version.cs" />
<Compile Include="System.Action.cs" />
<Compile Include="System.ArgumentException.cs" />
<Compile Include="System.ArgumentNullException.cs" />
Expand Down Expand Up @@ -905,7 +904,7 @@ Include="System.Security.Principal.WindowsPrincipal.cs" /> -->
<Compile Include="System.UIntPtr.cs" />
<!-- <Compile Include="System.UnhandledExceptionEventHandler.cs" /> -->
<Compile Include="System.ValueType.cs" />
<!-- <Compile Include="System.Version.cs" /> -->
<Compile Include="System.Version.cs" />
<Compile Include="System.Void.cs" />
<!-- <Compile Include="System.WeakReference.cs" /> -->
</ItemGroup>
Expand Down
75 changes: 70 additions & 5 deletions Microsoft.Research/Contracts/MsCorlib/System.Version.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,24 +22,58 @@ namespace System
public class Version: ICloneable, IComparable
{

[Pure]
public int Minor
{
get { return default(int); }
get {
Contract.Ensures(Contract.Result<int>() >= 0);
return default(int);
}
}

[Pure]
public int Major
{
get { return default(int); }
get {
Contract.Ensures(Contract.Result<int>() >= 0);
return default(int);
}
}

[Pure]
public int Revision
{
get { return default(int); }
get {
Contract.Ensures(Contract.Result<int>() >= -1);
return default(int);
}
}

[Pure]
public int Build
{
get { return default(int); }
get {
Contract.Ensures(Contract.Result<int>() >= -1);
return default(int);
}
}

[Pure]
public short MajorRevision
{
get {
Contract.Ensures(Contract.Result<short>() >= -1);
return default(short);
}
}

[Pure]
public short MinorRevision
{
get {
Contract.Ensures(Contract.Result<short>() >= -1);
return default(short);
}
}

[Pure][Reads(ReadsAttribute.Reads.Nothing)]
Expand Down Expand Up @@ -85,9 +119,27 @@ public object Clone () {

return default(object);
}
#if SILVERLIGHT || NETFRAMEWORK_4_0
[Pure]
public static Version Parse(string input) {
Contract.Requires(input != null);
Contract.Ensures(Contract.Result<Version>() != null);
return default(Version);
}
[Pure]
public static bool TryParse(string input, out Version result) {
Contract.Requires(input != null);
Contract.Ensures(!Contract.Result<bool>() || Contract.ValueAtReturn(out result) != null);
result = default(Version);
return default(bool);
}
#endif
#if !SILVERLIGHT
public Version () {

Contract.Ensures(Major == 0);
Contract.Ensures(Minor == 0);
Contract.Ensures(Build == -1);
Contract.Ensures(Revision == -1);
}
#endif
public Version (string version) {
Expand All @@ -97,19 +149,32 @@ public Version (string version) {
public Version (int major, int minor) {
Contract.Requires(major >= 0);
Contract.Requires(minor >= 0);
Contract.Ensures(Major == major);
Contract.Ensures(Minor == minor);
Contract.Ensures(Build == -1);
Contract.Ensures(Revision == -1);

}
public Version (int major, int minor, int build) {
Contract.Requires(major >= 0);
Contract.Requires(minor >= 0);
Contract.Requires(build >= 0);
Contract.Ensures(Major == major);
Contract.Ensures(Minor == minor);
Contract.Ensures(Build == build);
Contract.Ensures(Revision == -1);

}
public Version (int major, int minor, int build, int revision) {
Contract.Requires(major >= 0);
Contract.Requires(minor >= 0);
Contract.Requires(build >= 0);
Contract.Requires(revision >= 0);
Contract.Ensures(Major == major);
Contract.Ensures(Minor == minor);
Contract.Ensures(Build == build);
Contract.Ensures(Revision == revision);

}
}
}