Patch from Mike: added unit tests for the LSL compiler

2 files changed, 1323 insertions, 0 deletions

diff --git a/OpenSim/Tests/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSLCompilerTest.cs b/OpenSim/Tests/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSLCompilerTest.cs
new file mode 100644
index 0000000..6e42c16
--- /dev/null
+++ b/OpenSim/Tests/OpenSim/Region/ScriptEngine/Shared/CodeTools/LSLCompilerTest.cs
@@ -0,0 +1,1303 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System.Collections.Generic;
+using NUnit.Framework;
+using OpenSim.Region.ScriptEngine.Shared.CodeTools;
+
+namespace OpenSim.Region.ScriptEngine.Shared.CodeTools.Tests
+{
+    /// <summary>
+    /// Tests the LSL compiler, both the code generation and transformation.
+    /// Each test has some LSL code as input and C# code as expected output.
+    /// The generated C# code is compared against the expected C# code.
+    /// </summary>
+    [TestFixture]
+    public class LSLCompilerTest
+    {
+        [Test]
+        public void TestDefaultState()
+        {
+            string input = @"default
+{
+    state_entry()
+    {
+    }
+}
+";
+            string expected = @"
+        public void default_event_state_entry()
+        {
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestCustomState()
+        {
+            string input = @"default
+{
+    state_entry()
+    {
+    }
+}
+
+state another_state
+{
+    no_sensor()
+    {
+    }
+}
+";
+            string expected = @"
+        public void default_event_state_entry()
+        {
+        }
+        public void another_state_event_no_sensor()
+        {
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestEventWithArguments()
+        {
+            string input = @"default
+{
+    at_rot_target(integer tnum, rotation targetrot, rotation ourrot)
+    {
+    }
+}
+";
+            string expected = @"
+        public void default_event_at_rot_target(LSL_Types.LSLInteger tnum, LSL_Types.Quaternion targetrot, LSL_Types.Quaternion ourrot)
+        {
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestIntegerDeclaration()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        integer x;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 0;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestAssignments()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        string y;
+        integer x = 14;
+        y = ""Hello"";
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLString y = """";
+            LSL_Types.LSLInteger x = 14;
+            y = ""Hello"";
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestAdditionSubtractionOperator()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        integer y = -3;
+        integer x = 14 + 6;
+        y = 12 +45+20+x + 23 + 1 + x + y;
+        y = 12 + -45 + -   20 + x + 23 + -1 + x + y;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger y = -3;
+            LSL_Types.LSLInteger x = 14 + 6;
+            y = 12 + 45 + 20 + x + 23 + 1 + x + y;
+            y = 12 + -45 + -20 + x + 23 + -1 + x + y;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestStrings()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        llOwnerSay(""Testing, 1, 2, 3"");
+        llSay(0, ""I can hear you!"");
+        some_custom_function(1, 2, 3 +x, 4, ""five"", ""arguments"");
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            llOwnerSay(""Testing, 1, 2, 3"");
+            llSay(0, ""I can hear you!"");
+            some_custom_function(1, 2, 3 + x, 4, ""five"", ""arguments"");
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestBinaryExpression()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        integer y;
+        integer x = 14 + 6;
+        y = 12 - 3;
+        y = 12 * 3;
+        y = 12 / 3;
+        y = 12 | 3;
+        y = 12 & 3;
+        y = 12 % 3;
+        y = 12 + 45 - 20 * x / 23 | 1 & x + y;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger y = 0;
+            LSL_Types.LSLInteger x = 14 + 6;
+            y = 12 - 3;
+            y = 12 * 3;
+            y = 12 / 3;
+            y = 12 | 3;
+            y = 12 & 3;
+            y = 12 % 3;
+            y = 12 + 45 - 20 * x / 23 | 1 & x + y;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestFloatConstants()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        float y = 1.1;
+        y = 1.123E3;
+        y = 1.123e3;
+        y = 1.123E+3;
+        y = 1.123e+3;
+        y = 1.123E-3;
+        y = 1.123e-3;
+        y = .4;
+        y = -1.123E3;
+        y = -1.123e3;
+        y = -1.123E+3;
+        y = -1.123e+3;
+        y = -1.123E-3;
+        y = -1.123e-3;
+        y = -.4;
+        y = 12.3 + -1.45E3 - 1.20e-2;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLFloat y = 1.1;
+            y = 1.123E3;
+            y = 1.123e3;
+            y = 1.123E+3;
+            y = 1.123e+3;
+            y = 1.123E-3;
+            y = 1.123e-3;
+            y = .4;
+            y = -1.123E3;
+            y = -1.123e3;
+            y = -1.123E+3;
+            y = -1.123e+3;
+            y = -1.123E-3;
+            y = -1.123e-3;
+            y = -.4;
+            y = 12.3 + -1.45E3 - 1.20e-2;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestComments()
+        {
+            string input = @"// this test tests comments
+default
+{
+    touch_start(integer num_detected) // this should be stripped
+    {
+        // fill in code here...
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestStringsWithEscapedQuotesAndComments()
+        {
+            string input = @"// this test tests strings, with escaped quotes and comments in strings
+default
+{
+    touch_start(integer num_detected)
+    {
+        string s1 = ""this is a string."";
+        string s2 = ""this is a string ""+""with an escaped \"" inside it."";
+        s1 = s2+"" and this ""+""is a string with // comments."";
+
+        string onemore = ""[\^@]"";
+
+        string multiline = ""Good evening Sir,
+        my name is Steve.
+        I come from a rough area.
+        I used to be addicted to crack
+        but now I am off it and trying to stay clean.
+        That is why I am selling magazine subscriptions.""; // http://www.imdb.com/title/tt0151804/quotes
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLString s1 = ""this is a string."";
+            LSL_Types.LSLString s2 = ""this is a string "" + ""with an escaped \"" inside it."";
+            s1 = s2 + "" and this "" + ""is a string with // comments."";
+            LSL_Types.LSLString onemore = ""[\^@]"";
+            LSL_Types.LSLString multiline = ""Good evening Sir,\n        my name is Steve.\n        I come from a rough area.\n        I used to be addicted to crack\n        but now I am off it and trying to stay clean.\n        That is why I am selling magazine subscriptions."";
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestGlobalDefinedFunctions()
+        {
+            string input = @"// this test tests custom defined functions
+
+string onefunc()
+{
+    return ""Hi from onefunc()!"";
+}
+
+twofunc(string s)
+{
+    llSay(1000, s);
+}
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        llSay(2000, onefunc());
+        twofunc();
+    }
+}
+";
+            string expected = @"
+        LSL_Types.LSLString onefunc()
+        {
+            return ""Hi from onefunc()!"";
+        }
+        void twofunc(LSL_Types.LSLString s)
+        {
+            llSay(1000, s);
+        }
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            llSay(2000, onefunc());
+            twofunc();
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestGlobalDeclaredVariables()
+        {
+            string input = @"// this test tests custom defined functions and global variables
+
+string globalString;
+integer globalInt = 14;
+integer anotherGlobal = 20 * globalInt;
+
+string onefunc()
+{
+    globalString = "" ...and the global!"";
+    return ""Hi "" +
+           ""from "" +
+           ""onefunc()!"" + globalString;
+}
+
+twofunc(string s)
+{
+    llSay(1000, s);
+}
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        llSay(2000, onefunc());
+        twofunc();
+    }
+}
+";
+            string expected = @"
+        LSL_Types.LSLString globalString = """";
+        LSL_Types.LSLInteger globalInt = 14;
+        LSL_Types.LSLInteger anotherGlobal = 20 * globalInt;
+        LSL_Types.LSLString onefunc()
+        {
+            globalString = "" ...and the global!"";
+            return ""Hi "" + ""from "" + ""onefunc()!"" + globalString;
+        }
+        void twofunc(LSL_Types.LSLString s)
+        {
+            llSay(1000, s);
+        }
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            llSay(2000, onefunc());
+            twofunc();
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestMoreAssignments()
+        {
+            string input = @"// this test tests +=, -=, *=, /=, %=
+
+string globalString;
+integer globalInt = 14;
+
+string onefunc(string addition)
+{
+    globalInt -= 2;
+
+    globalString += addition;
+    return ""Hi "" +
+           ""from "" +
+           ""onefunc()! "" + globalString;
+}
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        llSay(2000, onefunc());
+
+        integer x = 2;
+        x *= 3;
+        x /= 14 + -2;
+        x %= 10;
+    }
+}
+";
+            string expected = @"
+        LSL_Types.LSLString globalString = """";
+        LSL_Types.LSLInteger globalInt = 14;
+        LSL_Types.LSLString onefunc(LSL_Types.LSLString addition)
+        {
+            globalInt -= 2;
+            globalString += addition;
+            return ""Hi "" + ""from "" + ""onefunc()! "" + globalString;
+        }
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            llSay(2000, onefunc());
+            LSL_Types.LSLInteger x = 2;
+            x *= 3;
+            x /= 14 + -2;
+            x %= 10;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestVectorConstantNotation()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        vector y = <1.2, llGetMeAFloat(), 4.4>;
+        rotation x = <0.1, 0.1, one + 2, 0.9>;
+
+        y = <0.1, 0.1, 1.1 - three - two+eight*8>;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.Vector3 y = new LSL_Types.Vector3(1.2, llGetMeAFloat(), 4.4);
+            LSL_Types.Quaternion x = new LSL_Types.Quaternion(0.1, 0.1, one + 2, 0.9);
+            y = new LSL_Types.Vector3(0.1, 0.1, 1.1 - three - two + eight * 8);
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestVectorMemberAccess()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        vector y = <1.2, llGetMeAFloat(), 4.4>;
+        x = y.x + 1.1;
+        y.x = 1.1;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.Vector3 y = new LSL_Types.Vector3(1.2, llGetMeAFloat(), 4.4);
+            x = y.x + 1.1;
+            y.x = 1.1;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestExpressionInParentheses()
+        {
+            string input = @"default
+{
+    touch_start(integer num_detected)
+    {
+        integer y = -3;
+        integer x = 14 + 6;
+        y = 12 +45+20+x + (23 + 1) + x + y;
+        y = (12 + -45 + -20 + x + 23 )+ -1 + x + y;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger y = -3;
+            LSL_Types.LSLInteger x = 14 + 6;
+            y = 12 + 45 + 20 + x + (23 + 1) + x + y;
+            y = (12 + -45 + -20 + x + 23) + -1 + x + y;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestIncrementDecrementOperator()
+        {
+            string input = @"// here we'll test the ++ and -- operators
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer y = -3;
+        integer x = 14 + 6;
+        y = 12 +45+20+x++ + (23 + 1) + ++x + --    y;
+        y = (12 + -45 + -20 + x-- + 23 )+ -1 + x -- + ++y;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger y = -3;
+            LSL_Types.LSLInteger x = 14 + 6;
+            y = 12 + 45 + 20 + x++ + (23 + 1) + ++x + --y;
+            y = (12 + -45 + -20 + x-- + 23) + -1 + x-- + ++y;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestLists()
+        {
+            string input = @"// testing lists
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        list l = [];
+        list m = [1, two, ""three"", <4.0, 4.0, 4.0>, 5 + 5];
+        llCallSomeFunc(1, llAnotherFunc(), [1, 2, 3]);
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.list l = new LSL_Types.list();
+            LSL_Types.list m = new LSL_Types.list(1, two, ""three"", new LSL_Types.Vector3(4.0, 4.0, 4.0), 5 + 5);
+            llCallSomeFunc(1, llAnotherFunc(), new LSL_Types.list(1, 2, 3));
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestIfStatement()
+        {
+            string input = @"// let's test if statements
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 1;
+
+        if(x) llSay(0, ""Hello"");
+        if(1) 
+        {
+            llSay(0, ""Hi"");
+            integer r = 3;
+            return;
+        }
+
+        if (f(x)) llSay(0, ""f(x) is true"");
+        else llSay(0, ""f(x) is false"");
+
+        if (x + y) llSay(0, ""x + y is true"");
+        else if (y - x) llSay(0, ""y - x is true"");
+        else llSay(0, ""Who needs x and y anyway?"");
+
+        if (x * y) llSay(0, ""x * y is true"");
+        else if (y / x)
+        {
+            llSay(0, ""uh-oh, y / x is true, exiting"");
+            return;
+        }
+        else llSay(0, ""Who needs x and y anyway?"");
+
+        // and now for my last trick
+        if (x % y) llSay(0, ""x is true"");
+        else if (y & x) llSay(0, ""y is true"");
+        else if (z | x) llSay(0, ""z is true"");
+        else if (a * (b + x)) llSay(0, ""a is true"");
+        else if (b) llSay(0, ""b is true"");
+        else if (v) llSay(0, ""v is true"");
+        else llSay(0, ""Everything is lies!"");
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 1;
+            if (x)
+                llSay(0, ""Hello"");
+            if (1)
+            {
+                llSay(0, ""Hi"");
+                LSL_Types.LSLInteger r = 3;
+                return ;
+            }
+            if (f(x))
+                llSay(0, ""f(x) is true"");
+            else
+                llSay(0, ""f(x) is false"");
+            if (x + y)
+                llSay(0, ""x + y is true"");
+            else
+            if (y - x)
+                llSay(0, ""y - x is true"");
+            else
+                llSay(0, ""Who needs x and y anyway?"");
+            if (x * y)
+                llSay(0, ""x * y is true"");
+            else
+            if (y / x)
+            {
+                llSay(0, ""uh-oh, y / x is true, exiting"");
+                return ;
+            }
+            else
+                llSay(0, ""Who needs x and y anyway?"");
+            if (x % y)
+                llSay(0, ""x is true"");
+            else
+            if (y & x)
+                llSay(0, ""y is true"");
+            else
+            if (z | x)
+                llSay(0, ""z is true"");
+            else
+            if (a * (b + x))
+                llSay(0, ""a is true"");
+            else
+            if (b)
+                llSay(0, ""b is true"");
+            else
+            if (v)
+                llSay(0, ""v is true"");
+            else
+                llSay(0, ""Everything is lies!"");
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestIfElseStatement()
+        {
+            string input = @"// let's test complex logical expressions
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 1;
+        integer y = 0;
+
+        if(x && y) llSay(0, ""Hello"");
+        if(x || y) 
+        {
+            llSay(0, ""Hi"");
+            integer r = 3;
+            return;
+        }
+
+        if (x && y || z) llSay(0, ""x is true"");
+        else llSay(0, ""x is false"");
+
+        if (x == y) llSay(0, ""x is true"");
+        else if (y < x) llSay(0, ""y is true"");
+        else llSay(0, ""Who needs x and y anyway?"");
+
+        if (x > y) llSay(0, ""x is true"");
+        else if (y <= x)
+        {
+            llSay(0, ""uh-oh, y is true, exiting"");
+            return;
+        }
+        else llSay(0, ""Who needs x and y anyway?"");
+
+        // and now for my last trick
+        if (x >= y) llSay(0, ""x is true"");
+        else if (y != x) llSay(0, ""y is true"");
+        else if (!z) llSay(0, ""z is true"");
+        else if (!(a && b)) llSay(0, ""a is true"");
+        else if (b) llSay(0, ""b is true"");
+        else if (v) llSay(0, ""v is true"");
+        else llSay(0, ""Everything is lies!"");
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 1;
+            LSL_Types.LSLInteger y = 0;
+            if (x && y)
+                llSay(0, ""Hello"");
+            if (x || y)
+            {
+                llSay(0, ""Hi"");
+                LSL_Types.LSLInteger r = 3;
+                return ;
+            }
+            if (x && y || z)
+                llSay(0, ""x is true"");
+            else
+                llSay(0, ""x is false"");
+            if (x == y)
+                llSay(0, ""x is true"");
+            else
+            if (y < x)
+                llSay(0, ""y is true"");
+            else
+                llSay(0, ""Who needs x and y anyway?"");
+            if (x > y)
+                llSay(0, ""x is true"");
+            else
+            if (y <= x)
+            {
+                llSay(0, ""uh-oh, y is true, exiting"");
+                return ;
+            }
+            else
+                llSay(0, ""Who needs x and y anyway?"");
+            if (x >= y)
+                llSay(0, ""x is true"");
+            else
+            if (y != x)
+                llSay(0, ""y is true"");
+            else
+            if (!z)
+                llSay(0, ""z is true"");
+            else
+            if (!(a && b))
+                llSay(0, ""a is true"");
+            else
+            if (b)
+                llSay(0, ""b is true"");
+            else
+            if (v)
+                llSay(0, ""v is true"");
+            else
+                llSay(0, ""Everything is lies!"");
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestWhileLoop()
+        {
+            string input = @"// let's test while loops
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 1;
+        integer y = 0;
+
+        while (x) llSay(0, ""To infinity, and beyond!"");
+        while (0 || (x && 0))
+        {
+            llSay(0, ""Never say never."");
+            return;
+        }
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 1;
+            LSL_Types.LSLInteger y = 0;
+            while (x)
+                llSay(0, ""To infinity, and beyond!"");
+            while (0 || (x && 0))
+            {
+                llSay(0, ""Never say never."");
+                return ;
+            }
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestDoWhileLoop()
+        {
+            string input = @"// let's test do-while loops
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 1;
+        integer y = 0;
+
+        do llSay(0, ""And we're doing..."");
+        while (x);
+
+        do
+        {
+            llSay(0, ""I like it here. I wish we could stay here forever."");
+            y--;
+        } while (y);
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 1;
+            LSL_Types.LSLInteger y = 0;
+            do
+                llSay(0, ""And we're doing..."");
+            while (x);
+            do
+            {
+                llSay(0, ""I like it here. I wish we could stay here forever."");
+                y--;
+            }
+            while (y);
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestForLoop()
+        {
+            string input = @"// let's test for loops
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 1;
+        integer y = 0;
+
+        for(x = 10; x >= 0; x--)
+        {
+            llOwnerSay(""Launch in T minus "" + x);
+            IncreaseRocketPower();
+        }
+
+        for(x = 0, y = 6; y > 0 && x != y; x++, y--) llOwnerSay(""Hi "" + x + "", "" + y);
+        for(x = 0, y = 6; ! y; x++,y--) llOwnerSay(""Hi "" + x + "", "" + y);
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 1;
+            LSL_Types.LSLInteger y = 0;
+            for (x = 10; x >= 0; x--)
+            {
+                llOwnerSay(""Launch in T minus "" + x);
+                IncreaseRocketPower();
+            }
+            for (x = 0, y = 6; y > 0 && x != y; x++, y--)
+                llOwnerSay(""Hi "" + x + "", "" + y);
+            for (x = 0, y = 6; !y; x++, y--)
+                llOwnerSay(""Hi "" + x + "", "" + y);
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestFloatsWithTrailingDecimal()
+        {
+            string input = @"// a curious feature of LSL that allows floats to be defined with a trailing dot
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        float y = 1.;
+        y = 1.E3;
+        y = 1.e3;
+        y = 1.E+3;
+        y = 1.e+3;
+        y = 1.E-3;
+        y = 1.e-3;
+        y = -1.E3;
+        y = -1.e3;
+        y = -1.E+3;
+        y = -1.e+3;
+        y = -1.E-3;
+        y = -1.e-3;
+        y = 12. + -1.E3 - 1.e-2;
+        vector v = <0.,0.,0.>;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLFloat y = 1.0;
+            y = 1.0E3;
+            y = 1.0e3;
+            y = 1.0E+3;
+            y = 1.0e+3;
+            y = 1.0E-3;
+            y = 1.0e-3;
+            y = -1.0E3;
+            y = -1.0e3;
+            y = -1.0E+3;
+            y = -1.0e+3;
+            y = -1.0E-3;
+            y = -1.0e-3;
+            y = 12.0 + -1.0E3 - 1.0e-2;
+            LSL_Types.Vector3 v = new LSL_Types.Vector3(0.0, 0.0, 0.0);
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestUnaryAndBinaryOperators()
+        {
+            string input = @"// let's test a few more operators
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 2;
+        integer y = 1;
+        integer z = x ^ y;
+        x = ~ z;
+        x = ~(y && z);
+        y = x >> z;
+        z = y << x;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 2;
+            LSL_Types.LSLInteger y = 1;
+            LSL_Types.LSLInteger z = x ^ y;
+            x = ~z;
+            x = ~(y && z);
+            y = x >> z;
+            z = y << x;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestTypecasts()
+        {
+            string input = @"// let's test typecasts
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        string s = """";
+        integer x = 1;
+
+        s = (string) x++;
+        s = (string) x;
+        s = (string) <0., 0., 0.>;
+        s = (string) <1., 1., 1., 1.>;
+        s = (integer) ""1"";
+        s = (string) llSomethingThatReturnsInteger();
+        s = (string) 134;
+        s = (string) (x ^ y | (z && l)) + (string) (x + y - 13);
+        llOwnerSay(""s is: "" + s);
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLString s = """";
+            LSL_Types.LSLInteger x = 1;
+            s = (LSL_Types.LSLString) (x++);
+            s = (LSL_Types.LSLString) (x);
+            s = (LSL_Types.LSLString) (new LSL_Types.Vector3(0.0, 0.0, 0.0));
+            s = (LSL_Types.LSLString) (new LSL_Types.Quaternion(1.0, 1.0, 1.0, 1.0));
+            s = (LSL_Types.LSLInteger) (""1"");
+            s = (LSL_Types.LSLString) (llSomethingThatReturnsInteger());
+            s = (LSL_Types.LSLString) (134);
+            s = (LSL_Types.LSLString) (x ^ y | (z && l)) + (LSL_Types.LSLString) (x + y - 13);
+            llOwnerSay(""s is: "" + s);
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestStates()
+        {
+            string input = @"// let's test states
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        llSay(0, ""Going to state 'statetwo'"");
+        state statetwo;
+    }
+}
+
+state statetwo
+{
+    state_entry()
+    {
+        llSay(0, ""Going to the default state"");
+        state default;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            llSay(0, ""Going to state 'statetwo'"");
+            state(""statetwo"");
+        }
+        public void statetwo_event_state_entry()
+        {
+            llSay(0, ""Going to the default state"");
+            state(""default"");
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestHexIntegerConstants()
+        {
+            string input = @"// let's test hex integers
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer x = 0x23;
+        integer x = 0x2f34B;
+        integer x = 0x2F34b;
+        integer x = 0x2F34B;
+        integer x = 0x2f34b;
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger x = 0x23;
+            LSL_Types.LSLInteger x = 0x2f34B;
+            LSL_Types.LSLInteger x = 0x2F34b;
+            LSL_Types.LSLInteger x = 0x2F34B;
+            LSL_Types.LSLInteger x = 0x2f34b;
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestJumps()
+        {
+            string input = @"// let's test jumps
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        jump here;
+        llOwnerSay(""Uh oh, the jump didn't work"");
+        @here;
+        llOwnerSay(""After the jump"");
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            goto here;
+            llOwnerSay(""Uh oh, the jump didn't work"");
+            here:
+            llOwnerSay(""After the jump"");
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+
+        [Test]
+        public void TestImplicitVariableInitialization()
+        {
+            string input = @"// let's test implicitly initializing variables
+
+default
+{
+    touch_start(integer num_detected)
+    {
+        integer i; integer j = 14;
+        float f; float g = 14.0;
+        string s; string t = ""Hi there"";
+        list l; list m = [1, 2, 3];
+        vector v; vector w = <1.0, 0.1, 0.5>;
+        rotation r; rotation u = <0.8, 0.7, 0.6, llSomeFunc()>;
+        key k; key n = ""ping"";
+    }
+}
+";
+            string expected = @"
+        public void default_event_touch_start(LSL_Types.LSLInteger num_detected)
+        {
+            LSL_Types.LSLInteger i = 0;
+            LSL_Types.LSLInteger j = 14;
+            LSL_Types.LSLFloat f = 0.0;
+            LSL_Types.LSLFloat g = 14.0;
+            LSL_Types.LSLString s = """";
+            LSL_Types.LSLString t = ""Hi there"";
+            LSL_Types.list l = new LSL_Types.list();
+            LSL_Types.list m = new LSL_Types.list(1, 2, 3);
+            LSL_Types.Vector3 v = new LSL_Types.Vector3(0.0, 0.0, 0.0);
+            LSL_Types.Vector3 w = new LSL_Types.Vector3(1.0, 0.1, 0.5);
+            LSL_Types.Quaternion r = new LSL_Types.Quaternion(0.0, 0.0, 0.0, 0.0);
+            LSL_Types.Quaternion u = new LSL_Types.Quaternion(0.8, 0.7, 0.6, llSomeFunc());
+            LSL_Types.LSLString k = """";
+            LSL_Types.LSLString n = ""ping"";
+        }
+";
+
+            CSCodeGenerator cg = new CSCodeGenerator(input);
+            string output = cg.Generate();
+            Assert.AreEqual(expected, output);
+        }
+    }
+}
diff --git a/prebuild.xml b/prebuild.xml
index 8e80ed5..d875cbe 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -1588,6 +1588,26 @@
       </Files>
     </Project>
 
+    <Project name="OpenSim.Region.ScriptEngine.Shared.CodeTools.Tests" path="OpenSim/Tests/OpenSim/Region/ScriptEngine/Shared/CodeTools" type="Library">
+      <Configuration name="Debug">
+        <Options>
+          <OutputPath>../../../../../../../bin/</OutputPath>
+        </Options>
+      </Configuration>
+      <Configuration name="Release">
+        <Options>
+          <OutputPath>../../../../../../../bin/</OutputPath>
+        </Options>
+      </Configuration>
+
+      <ReferencePath>../../../../../../../bin/</ReferencePath>
+      <Reference name="OpenSim.Region.ScriptEngine.Shared.CodeTools"/>
+      <Reference name="nunit.framework.dll" />
+      <Files>
+        <Match pattern="*.cs" recurse="false"/>
+      </Files>
+    </Project>
+
     <Project name="OpenSim.Region.ScriptEngine.XEngine" path="OpenSim/Region/ScriptEngine/XEngine" type="Library">
       <Configuration name="Debug">
         <Options>