public void Test()
{
var myHostObject = new MyHostObject
{
Value1 = "Testing Value 1",
Value2 = "This is Value 2"
};
var engine = new ScriptEngine();
var session = engine.CreateSession(myHostObject);
session.AddReference(myHostObject.GetType().Assembly.Location);
session.AddReference("System");
session.AddReference("System.Core");
session.ImportNamespace("System");
// "Execute" our method so we can call it.
session.Execute("public string UpdateHostObject() { Value1 = \"V1\"; Value2 = \"V2\"; return Value1 + Value2;}");
var s = session.Execute <string>("UpdateHostObject()");
//s will return "V1V2" and your instance of myHostObject was also changed.
}
public void SetGetHostObjectInProject()
{
string projectContents = @"
<Project ToolsVersion=`msbuilddefaulttoolsversion` xmlns=`msbuildnamespace`>
<Target Name=`Build` >
<MakeDir Directories=`c:\rajeev` />
<Csc Sources=`foo.cs` />
</Target>
</Project>
";
Project project = ObjectModelHelpers.CreateInMemoryProject(projectContents);
MyHostObject hostObject1 = new MyHostObject();
MyHostObject hostObject2 = new MyHostObject();
// Set hostObject1 to the "MakeDir" task, and set hostObject2 to the "Csc" task.
foreach (Target target in project.Targets)
{
foreach (BuildTask myTask in target)
{
if (myTask.Name == "MakeDir")
{
myTask.HostObject = hostObject1;
}
else if (myTask.Name == "Csc")
{
myTask.HostObject = hostObject2;
}
else
{
Assertion.Assert("Unknown task", false);
}
}
}
bool foundMakeDir = false;
bool foundCsc = false;
// Now retrieve the host objects for "MakeDir" and "Csc", and confirm they're the
// same ones we set originally.
foreach (Target target in project.Targets)
{
foreach (BuildTask myTask in target)
{
if (myTask.Name == "MakeDir")
{
Assertion.AssertSame(myTask.HostObject, hostObject1);
Assertion.Assert(myTask.HostObject != hostObject2);
foundMakeDir = true;
}
else if (myTask.Name == "Csc")
{
Assertion.AssertSame(myTask.HostObject, hostObject2);
Assertion.Assert(myTask.HostObject != hostObject1);
foundCsc = true;
}
else
{
Assertion.Assert("Unknown task", false);
}
}
}
Assertion.Assert(foundMakeDir && foundCsc);
}
public void SetGetHostObjectInProject()
{
string projectContents = @"
<Project ToolsVersion=`msbuilddefaulttoolsversion` xmlns=`msbuildnamespace`>
<Target Name=`Build` >
<MakeDir Directories=`c:\rajeev` />
<Csc Sources=`foo.cs` />
</Target>
</Project>
";
Project project = ObjectModelHelpers.CreateInMemoryProject(projectContents);
MyHostObject hostObject1 = new MyHostObject();
MyHostObject hostObject2 = new MyHostObject();
// Set hostObject1 to the "MakeDir" task, and set hostObject2 to the "Csc" task.
foreach (Target target in project.Targets)
{
foreach (BuildTask myTask in target)
{
if (myTask.Name == "MakeDir")
{
myTask.HostObject = hostObject1;
}
else if (myTask.Name == "Csc")
{
myTask.HostObject = hostObject2;
}
else
{
Assertion.Assert("Unknown task", false);
}
}
}
bool foundMakeDir = false;
bool foundCsc = false;
// Now retrieve the host objects for "MakeDir" and "Csc", and confirm they're the
// same ones we set originally.
foreach (Target target in project.Targets)
{
foreach (BuildTask myTask in target)
{
if (myTask.Name == "MakeDir")
{
Assertion.AssertSame(myTask.HostObject, hostObject1);
Assertion.Assert(myTask.HostObject != hostObject2);
foundMakeDir = true;
}
else if (myTask.Name == "Csc")
{
Assertion.AssertSame(myTask.HostObject, hostObject2);
Assertion.Assert(myTask.HostObject != hostObject1);
foundCsc = true;
}
else
{
Assertion.Assert("Unknown task", false);
}
}
}
Assertion.Assert(foundMakeDir && foundCsc);
}