Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/Expr.cs

@@ -0,0 +1,50 @@
+//
+// Expr.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	abstract class Expr {
+
+		protected Expr (MethodInfo methodInfo)
+		{
+			this.MethodInfo = methodInfo;
+		}
+
+		public abstract ExprType ExprType { get; }
+		public abstract TypeReference ReturnType { get; }
+
+		public MethodInfo MethodInfo { get; private set; }
+
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprAdd.cs

@@ -0,0 +1,47 @@
+//
+// ExprAdd.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprAdd : ExprBinaryOpArithmetic {
+
+		public ExprAdd (MethodInfo methodInfo, Expr left, Expr right, Sn signage, bool overflow)
+			: base (methodInfo, left, right, signage, overflow)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Add; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprBinaryOp.cs

@@ -0,0 +1,58 @@
+//
+// ExprBinaryOp.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	abstract class ExprBinaryOp : Expr {
+
+		public ExprBinaryOp (MethodInfo methodInfo, Expr left, Expr right, Sn signage)
+			: base (methodInfo)
+		{
+			this.Left = left;
+			this.Right = right;
+			this.Signage = signage;
+		}
+
+		public Expr Left { get; private set; }
+		public Expr Right { get; private set; }
+		public Sn Signage { get; private set; }
+
+		public bool IsSigned {
+			get { return this.Signage == Sn.Signed; }
+		}
+
+		public bool IsUnsigned {
+			get { return this.Signage == Sn.Unsigned; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprBinaryOpArithmetic.cs

@@ -0,0 +1,61 @@
+//
+// ExprBinaryOpArithmetic.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	abstract class ExprBinaryOpArithmetic : ExprBinaryOp {
+
+		public ExprBinaryOpArithmetic (MethodInfo methodInfo, Expr left, Expr right, Sn signage, bool overflow)
+			: base (methodInfo, left, right, signage)
+		{
+			this.Overflow = overflow;
+		}
+
+		public bool Overflow { get; private set; }
+
+		public override TypeReference ReturnType {
+			get {
+				if (base.Left.ReturnType.FullName == "System.Int8" ||
+					base.Left.ReturnType.FullName == "System.Int16") {
+					return base.MethodInfo.TypeInt32;
+				}
+				if (base.Left.ReturnType.FullName == "System.Uint8" ||
+					base.Left.ReturnType.FullName == "System.Uint16") {
+					return base.MethodInfo.TypeUInt32;
+				}
+				return base.Left.ReturnType;
+			}
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprBinaryOpComparison.cs

@@ -0,0 +1,48 @@
+//
+// ExprBinaryOpComparison.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	abstract class ExprBinaryOpComparison : ExprBinaryOp {
+
+		public ExprBinaryOpComparison (MethodInfo methodInfo, Expr left, Expr right, Sn signage)
+			: base (methodInfo, left, right, signage)
+		{
+		}
+
+		public override TypeReference ReturnType {
+			get { return base.MethodInfo.TypeBoolean; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprBlock.cs

@@ -0,0 +1,55 @@
+//
+// ExprBlock.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprBlock : Expr {
+
+		public ExprBlock (MethodInfo methodInfo, IEnumerable<Expr> exprs)
+			: base (methodInfo)
+		{
+			this.Exprs = exprs;
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Block; }
+		}
+
+		public override TypeReference ReturnType {
+			get { return base.MethodInfo.TypeVoid; }
+		}
+
+		public IEnumerable<Expr> Exprs { get; private set; }
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprBox.cs

@@ -0,0 +1,54 @@
+//
+// ExprBox.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprBox : Expr {
+
+		public ExprBox (MethodInfo methodInfo, Expr exprToBox)
+			: base (methodInfo)
+		{
+			this.ExprToBox = exprToBox;
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Box; }
+		}
+
+		public override Mono.Cecil.TypeReference ReturnType {
+			get { return this.ExprToBox.ReturnType; }
+		}
+
+		public Expr ExprToBox { get; private set; }
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprCall.cs

@@ -0,0 +1,57 @@
+//
+// ExprCall.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprCall : Expr {
+
+		public ExprCall (MethodInfo methodInfo, MethodReference method, IEnumerable<Expr> parameters)
+			: base (methodInfo)
+		{
+			this.Method = method;
+			this.Parameters = parameters;
+		}
+
+		public MethodReference Method { get; private set; }
+		public IEnumerable<Expr> Parameters { get; private set; }
+
+		public override ExprType ExprType {
+			get { return ExprType.Call; }
+		}
+
+		public override TypeReference ReturnType {
+			get { return this.Method.ReturnType; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprCompareEqual.cs

@@ -0,0 +1,47 @@
+//
+// ExprCompareEqual.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprCompareEqual : ExprBinaryOpComparison {
+
+		public ExprCompareEqual (MethodInfo methodInfo, Expr left, Expr right)
+			: base (methodInfo, left, right, Sn.None)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.CompareEqual; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprCompareGreaterThan.cs

@@ -0,0 +1,47 @@
+//
+// ExprCompareGreaterThan.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprCompareGreaterThan : ExprBinaryOpComparison {
+
+		public ExprCompareGreaterThan (MethodInfo methodInfo, Expr left, Expr right, Sn signage)
+			: base (methodInfo, left, right, signage)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.CompareGreaterThan; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprCompareLessThan.cs

@@ -0,0 +1,47 @@
+//
+// ExprCompareLessThan.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprCompareLessThan : ExprBinaryOpComparison {
+
+		public ExprCompareLessThan (MethodInfo methodInfo, Expr left, Expr right, Sn signage)
+			: base (methodInfo, left, right, signage)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.CompareLessThan; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprConv.cs

@@ -0,0 +1,66 @@
+//
+// ExprConv.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprConv : Expr {
+
+		public ExprConv (MethodInfo methodInfo, Expr exprToConvert, TypeCode convToType)
+			: base (methodInfo)
+		{
+			this.ExprToConvert = exprToConvert;
+			this.ConvToType = convToType;
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Conv; }
+		}
+
+		public Expr ExprToConvert { get; private set; }
+		public TypeCode ConvToType { get; private set; }
+
+		public override TypeReference ReturnType {
+			get {
+				switch (this.ConvToType) {
+				case TypeCode.Int32:
+					return base.MethodInfo.TypeInt32;
+				case TypeCode.Int64:
+					return base.MethodInfo.TypeInt64;
+				default:
+					throw new NotSupportedException ("Cannot conv to: " + this.ConvToType);
+				}
+			}
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprLoadArg.cs

@@ -0,0 +1,57 @@
+//
+// ExprLoadArg.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprLoadArg : Expr {
+
+		public ExprLoadArg (MethodInfo methodInfo, int index)
+			: base (methodInfo)
+		{
+			this.Index = index;
+		}
+
+		public int Index { get; private set; }
+
+		public override ExprType ExprType {
+			get { return ExprType.LoadArg; }
+		}
+
+		public override TypeReference ReturnType {
+			get {
+				return base.MethodInfo.Method.Parameters [this.Index].ParameterType;
+			}
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprLoadConstant.cs

@@ -0,0 +1,64 @@
+//
+// ExprLoadConstant.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprLoadConstant : Expr {
+
+		public ExprLoadConstant (MethodInfo methodInfo, object value)
+			: base (methodInfo)
+		{
+			this.Value = value;
+
+			if (value == null) {
+				this.returnType = methodInfo.TypeObject;
+			} else {
+				Type type = value.GetType();
+				this.returnType = methodInfo.Module.Import (type);
+			}
+		}
+
+		private TypeReference returnType;
+
+		public object Value { get; private set; }
+
+		public override ExprType ExprType {
+			get { return ExprType.LoadConstant; }
+		}
+
+		public override TypeReference ReturnType {
+			get { return this.returnType; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprNop.cs

@@ -0,0 +1,51 @@
+//
+// ExprNop.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprNop : Expr {
+
+		public ExprNop (MethodInfo methodInfo)
+			: base (methodInfo)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Nop; }
+		}
+
+		public override Mono.Cecil.TypeReference ReturnType {
+			get { return base.MethodInfo.TypeVoid; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprReturn.cs

@@ -0,0 +1,52 @@
+//
+// ExprReturn.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Mono.Cecil;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprReturn : Expr {
+
+		public ExprReturn (MethodInfo methodInfo)
+			: base (methodInfo)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Return; }
+		}
+
+		public override TypeReference ReturnType {
+			get { return base.MethodInfo.TypeVoid; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprSub.cs

@@ -0,0 +1,47 @@
+//
+// ExprSub.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	class ExprSub : ExprBinaryOpArithmetic {
+
+		public ExprSub (MethodInfo methodInfo, Expr left, Expr right, Sn signage, bool overflow)
+			: base (methodInfo, left, right, signage, overflow)
+		{
+		}
+
+		public override ExprType ExprType {
+			get { return ExprType.Sub; }
+		}
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/ExprType.cs

@@ -0,0 +1,55 @@
+//
+// ExprType.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	enum ExprType {
+
+		Unknown,
+
+		Block,
+
+		Nop,
+		LoadArg,
+		LoadConstant,
+		CompareLessThan,
+		CompareGreaterThan,
+		CompareEqual,
+		Call,
+		Return,
+		Box,
+		Conv,
+		Add,
+		Sub,
+
+	}
+}

mcs/class/Mono.CodeContracts/Mono.CodeContracts.Rewrite.Ast/Sn.cs

@@ -0,0 +1,40 @@
+//
+// Sn.cs
+//
+// Authors:
+//	Chris Bacon (chrisbacon76@gmail.com)
+//
+// Copyright (C) 2010 Chris Bacon
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Mono.CodeContracts.Rewrite.Ast {
+	enum Sn {
+		None,
+		Signed,
+		Unsigned
+	}
+}