[Mono-bugs] [Bug 61702][Maj] New - mcs crash with a block of code I try to compile

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Changed by mikko.korkalo@f-solutions.net.

http://bugzilla.ximian.com/show_bug.cgi?id=61702

--- shadow/61702	2004-07-18 10:40:31.000000000 -0400
+++ shadow/61702.tmp.20008	2004-07-18 10:40:31.000000000 -0400
@@ -0,0 +1,105 @@
+Bug#: 61702
+Product: Mono: Compilers
+Version: unspecified
+OS: All
+OS Details: Windows 2000 SP4, mono 1.0
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: C#
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: mikko.korkalo@f-solutions.net               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: mcs crash with a block of code I try to compile
+
+Description of Problem:
+mcs crash with a block of code I try to compile.
+
+
+Steps to reproduce the problem:
+
+--- compile the following function ---
+
+public static string RandomLetters(short count)
+{
+	// generates random lowercase letters given count
+	byte[] bytes;
+	bytes = new byte[count];
+	System.Security.Cryptography.RandomNumberGenerator rnd = System.
+Security.Cryptography.RandomNumberGenerator.Create();
+	rnd.GetBytes(bytes);
+			
+	const byte min=97; // ascii range: 97 (a) - 122 (z)
+	const byte max=122;
+	const byte range = max - min + 1;
+	const float rangefactor = ((float) range) / 255; // letter ascii code 
+range (~28) against 0 - 255 -> 0,something
+
+	byte[] newbytes = new byte[count];
+
+	for (byte k=0;k<bytes.Length;k++)
+	{
+		newbytes[k] = System.Convert.ToByte(((((float) bytes[k]) * rangefactor) 
++ (float) min));
+	}
+	string str = System.Text.ASCIIEncoding.ASCII.GetString(newbytes,0,
+newbytes.Length);
+	Debug.WriteLine("RandomLetters() returning '" + str + "'");
+	return str;
+}
+
+--- End of function ---
+
+
+
+
+Actual Results:
+
+--- compiler crash with message as follows ---
+
+Exception caught by the compiler while compiling:
+   Block that caused the problem begin at: G:
+\code\csharp\keitsibot\keitsibot\Common.cs: (13)
+                     Block being compiled: [Internal: (1),Internal: (1)]
+System.Exception: Expression Mono.CSharp.Binary ExprClass is Invalid after 
+resolve
+	in Expression.Resolve (Mono.CSharp.EmitContext, Mono.CSharp.ResolveFlags)
+	in Expression.Resolve (Mono.CSharp.EmitContext)
+	in SimpleName.DoSimpleNameResolve (Mono.CSharp.EmitContext, Mono.CSharp.
+Expression, bool, bool)
+	in SimpleName.SimpleNameResolve (Mono.CSharp.EmitContext, Mono.CSharp.
+Expression, bool, bool)
+	in SimpleName.DoResolveAllowStatic (Mono.CSharp.EmitContext, bool)
+	in Expression.Resolve (Mono.CSharp.EmitContext, Mono.CSharp.ResolveFlags)
+	in Expression.Resolve (Mono.CSharp.EmitContext)
+	in Cast.DoResolve (Mono.CSharp.EmitContext)
+	in Expression.Resolve (Mono.CSharp.EmitContext, Mono.CSharp.ResolveFlags)
+	in Expression.Resolve (Mono.CSharp.EmitContext)
+	in Binary.DoResolve (Mono.CSharp.EmitContext)
+	in Expression.Resolve (Mono.CSharp.EmitContext, Mono.CSharp.ResolveFlags)
+	in Expression.Resolve (Mono.CSharp.EmitContext)
+	in Block.EmitMeta (Mono.CSharp.EmitContext, Mono.CSharp.
+InternalParameters)
+	in Block.EmitMeta (Mono.CSharp.EmitContext, Mono.CSharp.
+InternalParameters)
+	in Block.EmitMeta (Mono.CSharp.EmitContext, Mono.CSharp.
+InternalParameters)
+	in EmitContext.EmitTopBlock (Mono.CSharp.Block, Mono.CSharp.
+InternalParameters, Mono.CSharp.Location)
+
+--- end of compiler crash ---
+
+
+Expected Results:
+Compiles on MS .NET framework 1.1.
+
+How often does this happen? 
+Every time I try to compile
+
+Additional Information:
+System.Security.Cryptography.RandomNumberGenerator does not seem to cause 
+it. Seems like this has something to do with the constants I am using.