[mcs] C#7 throw expression

10 files changed, 114 insertions, 1 deletions

diff --git a/mcs/errors/cs0019-72.cs b/mcs/errors/cs0019-72.cs
new file mode 100644
index 00000000000..90cbae7ebdd
--- /dev/null
+++ b/mcs/errors/cs0019-72.cs
@@ -0,0 +1,10 @@
+// CS0019: Operator `??' cannot be applied to operands of type `void' and `throw expression'
+// Line: 20
+
+class C
+{
+	public static void Main ()
+	{
+		var s = Main () ?? throw null;
+	}
+}
\ No newline at end of file
diff --git a/mcs/errors/cs0155-5.cs b/mcs/errors/cs0155-5.cs
new file mode 100644
index 00000000000..774700ab736
--- /dev/null
+++ b/mcs/errors/cs0155-5.cs
@@ -0,0 +1,7 @@
+// CS0155: The type caught or thrown must be derived from System.Exception
+// Line: 9
+
+class X
+{
+    public int Test () => throw "";
+}
diff --git a/mcs/errors/cs0162-21.cs b/mcs/errors/cs0162-21.cs
new file mode 100644
index 00000000000..e8bd4b2f79a
--- /dev/null
+++ b/mcs/errors/cs0162-21.cs
@@ -0,0 +1,19 @@
+// CS0162: Unreachable code detected
+// Line: 12
+// Compiler options: -warnaserror -warn:2
+
+using System;
+
+class X
+{
+    void Test ()
+    {
+        var x = true ? throw new NullReferenceException () : 1;
+        x = 2;
+        return;
+    }
+
+	static void Main () 
+	{
+	}
+}
diff --git a/mcs/errors/cs0173-6.cs b/mcs/errors/cs0173-6.cs
new file mode 100644
index 00000000000..6c2dab2672b
--- /dev/null
+++ b/mcs/errors/cs0173-6.cs
@@ -0,0 +1,10 @@
+// CS0173: Type of conditional expression cannot be determined because there is no implicit conversion between `throw expression' and `throw expression'
+// Line: 8
+
+class C
+{
+	public static void Test (bool b)
+	{
+		var s = b ? throw null : throw null;
+	}
+}
\ No newline at end of file
diff --git a/mcs/errors/cs0411-25.cs b/mcs/errors/cs0411-25.cs
new file mode 100644
index 00000000000..c7f92fb96d7
--- /dev/null
+++ b/mcs/errors/cs0411-25.cs
@@ -0,0 +1,16 @@
+// CS0411: The type arguments for method `C.Foo<T>(System.Func<T>)' cannot be inferred from the usage. Try specifying the type arguments explicitly
+// Line: 10
+
+using System;
+
+public class C
+{
+    public static void Main ()
+    {
+        Foo (() => throw null);
+    }
+
+    static void Foo<T> (Func<T> arg)
+    {
+    }
+}
\ No newline at end of file
diff --git a/mcs/errors/cs1061-18.cs b/mcs/errors/cs1061-18.cs
new file mode 100644
index 00000000000..1f201d5320b
--- /dev/null
+++ b/mcs/errors/cs1061-18.cs
@@ -0,0 +1,18 @@
+// CS1061: No overload for method `Call' takes `0' arguments
+// Line: 11
+
+using System;
+ 
+class Program
+{
+	static void Main ()
+	{
+		Action<dynamic, object> action = delegate { };
+		Foo (action).NoDynamicBinding ();
+	}
+ 
+	static T Foo<T>(Action<T, T> x)
+	{
+		throw new NotImplementedException ();
+	}
+}
\ No newline at end of file
diff --git a/mcs/errors/cs1617.cs b/mcs/errors/cs1617.cs
index 88f9c12deca..cfa63a7d835 100644
--- a/mcs/errors/cs1617.cs
+++ b/mcs/errors/cs1617.cs
@@ -1,3 +1,3 @@
-// CS1617: Invalid -langversion option `ISO'. It must be `ISO-1', `ISO-2', Default or value in range 1 to 6
+// CS1617: Invalid -langversion option `ISO'. It must be `ISO-1', `ISO-2', Default or value in range 1 to 7
 // Line: 0
 // Compiler options: -langversion:ISO
diff --git a/mcs/errors/cs1644-51.cs b/mcs/errors/cs1644-51.cs
new file mode 100644
index 00000000000..0cc61504e6f
--- /dev/null
+++ b/mcs/errors/cs1644-51.cs
@@ -0,0 +1,8 @@
+// CS1644: Feature `throw expression' cannot be used because it is not part of the C# 6.0 language specification
+// Line: 5
+// Compiler options: -langversion:6
+
+static class Class
+{
+	int Prop => throw null;
+}
diff --git a/mcs/errors/cs4001-3.cs b/mcs/errors/cs4001-3.cs
new file mode 100644
index 00000000000..9f4d82c66bb
--- /dev/null
+++ b/mcs/errors/cs4001-3.cs
@@ -0,0 +1,12 @@
+// CS4001: Cannot await `void' expression
+// Line: 10
+
+using System;
+
+class A
+{
+	static async void Test ()
+	{
+		await Console.WriteLine;
+	}
+}
diff --git a/mcs/errors/cs8188.cs b/mcs/errors/cs8188.cs
new file mode 100644
index 00000000000..d2f225fec5f
--- /dev/null
+++ b/mcs/errors/cs8188.cs
@@ -0,0 +1,13 @@
+// CS8188: An expression tree cannot not contain a throw expression
+// Line: 11
+
+using System;
+using System.Linq.Expressions;
+
+class C
+{
+	public static void Main ()
+	{
+		Expression<Func<object>> l = () => throw null;
+	}
+}
\ No newline at end of file