| public Class ( System baseType, string name ) : TypeGen | ||
| baseType | System | |
| name | string | |
| return | TypeGen | |
public static void ClassImpl(AssemblyGen ag, bool impl)
{
ITypeMapper m = ag.TypeMapper;
TypeGen Test = ag.Class("Test");
{
CodeGen g = Test.Public.Static.Method(typeof(void), "Main");
{
// test calling virtual member directly on a literal
// g.Local(Operand.FromObject(3).Invoke("GetHashCode"));
// test special case where the value type target doesn't implement the virtual function
var value = g.Local(Test);
g.Assign(value, ag.ExpressionFactory.New(Test));
g.WriteLine("Hash code of {0} is {1}", value, value.Invoke("GetHashCode"));
}
if (impl)
{
g = Test.Public.Override.Method(typeof(int), "GetHashCode");
{
g.Return(-1);
}
}
}
}
public static void GenOriginalTest(AssemblyGen ag)
{
ITypeMapper m = ag.TypeMapper;
TypeGen Test = ag.Class("Test");
{
CodeGen g = Test.Public.Static.Method(typeof(void), "Main");
{
var value = g.Local(typeof(int), 3);
g.WriteLine("Hash code of {0} is {1}", value, value.Invoke("GetHashCode"));
}
}
}
// example based on the MSDN Versioning Sample (versioning.cs)
public static void GenVersioning(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
ITypeMapper m = ag.TypeMapper;
TypeGen MyBase = ag.Public.Class("MyBase");
{
MyBase.Public.Virtual.Method(typeof(string), "Meth1").GetCode()
.Return("MyBase-Meth1");
MyBase.Public.Virtual.Method(typeof(string), "Meth2").GetCode()
.Return("MyBase-Meth2");
MyBase.Public.Virtual.Method(typeof(string), "Meth3").GetCode()
.Return("MyBase-Meth3");
}
TypeGen MyDerived = ag.Class("MyDerived", MyBase);
{
// Overrides the virtual method Meth1 using the override keyword:
MyDerived.Public.Override.Method(typeof(string), "Meth1").GetCode()
.Return("MyDerived-Meth1");
// Explicitly hide the virtual method Meth2 using the new
// keyword:
// remark: new is not supported/required in RunSharp
MyDerived.Public.Method(typeof(string), "Meth2").GetCode()
.Return("MyDerived-Meth2");
// Because no keyword is specified in the following declaration
// a warning will be issued to alert the programmer that
// the method hides the inherited member MyBase.Meth3():
// remark: this warning is not supported in RunSharp
MyDerived.Public.Method(typeof(string), "Meth3").GetCode()
.Return("MyDerived-Meth3");
CodeGen g = MyDerived.Public.Static.Method(typeof(void), "Main");
{
var mD = g.Local(exp.New(MyDerived));
var mB = g.Local(mD.Cast(MyBase));
g.WriteLine(mB.Invoke("Meth1"));
g.WriteLine(mB.Invoke("Meth2"));
g.WriteLine(mB.Invoke("Meth3"));
}
}
}
// example based on the MSDN Properties Sample (person.cs)
public static void GenPerson(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
TypeGen Person = ag.Class("Person");
{
FieldGen myName = Person.Private.Field(typeof(string), "myName", "N/A");
FieldGen myAge = Person.Private.Field(typeof(int), "myAge", 0);
// Declare a Name property of type string:
PropertyGen Name = Person.Public.SimpleProperty(myName, "Name");
// Declare an Age property of type int:
PropertyGen Age = Person.Public.SimpleProperty(myAge, "Age");
CodeGen g = Person.Public.Override.Method(typeof(string), "ToString");
{
g.Return("Name = " + Name + ", Age = " + Age);
}
g = Person.Public.Static.Method(typeof(void), "Main");
{
g.WriteLine("Simple Properties");
// Create a new Person object:
var person = g.Local(exp.New(Person));
// Print out the name and the age associated with the person:
g.WriteLine("Person details - {0}", person);
// Set some values on the person object:
ITypeMapper typeMapper = ag.TypeMapper;
g.Assign(person.Property("Name"), "Joe");
ITypeMapper typeMapper1 = ag.TypeMapper;
g.Assign(person.Property("Age"), 99);
g.WriteLine("Person details - {0}", person);
// Increment the Age property:
ITypeMapper typeMapper2 = ag.TypeMapper;
g.AssignAdd(person.Property("Age"), 1);
g.WriteLine("Person details - {0}", person);
}
}
}
// example based on the MSDN Structs Sample (struct1.cs)
public static void GenStruct1(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
CodeGen g;
TypeGen SimpleStruct = ag.Struct("SimpleStruct");
{
FieldGen xval = SimpleStruct.Field(typeof(int), "xval");
PropertyGen X = SimpleStruct.Public.Property(typeof(int), "X");
{
X.Getter().GetCode().Return(xval);
g = X.Setter();
{
g.If(g.PropertyValue() < 100);
{
g.Assign(xval, g.PropertyValue());
}
g.End();
}
}
g = SimpleStruct.Public.Method(typeof(void), "DisplayX");
{
g.WriteLine("The stored value is: {0}", xval);
}
}
TypeGen TestClass = ag.Class("TestClass");
{
g = TestClass.Public.Static.Method(typeof(void), "Main");
{
var ss = g.Local(SimpleStruct);
g.InitObj(ss);
ITypeMapper typeMapper = ag.TypeMapper;
g.Assign(ss.Property("X"), 5);
g.Invoke(ss, "DisplayX");
}
}
}
// example based on the MSDN Events Sample (events1.cs)
public static void GenEvents1(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
ITypeMapper m = ag.TypeMapper;
TypeGen ChangedEventHandler, ListWithChangedEvent;
using (ag.Namespace("MyCollections"))
{
// A delegate type for hooking up change notifications.
ChangedEventHandler = ag.Delegate(typeof(void), "ChangedEventHandler").Parameter(typeof(object), "sender").Parameter(typeof(EventArgs), "e");
// A class that works just like ArrayList, but sends event
// notifications whenever the list changes.
ListWithChangedEvent = ag.Public.Class("ListWithChangedEvent", typeof(ArrayList));
{
// An event that clients can use to be notified whenever the
// elements of the list change.
EventGen Changed = ListWithChangedEvent.Public.Event(ChangedEventHandler, "Changed");
// Invoke the Changed event; called whenever list changes
CodeGen g = ListWithChangedEvent.Protected.Virtual.Method(typeof(void), "OnChanged").Parameter(typeof(EventArgs), "e");
{
g.If(Changed != null);
{
g.InvokeDelegate(Changed, g.This(), g.Arg("e"));
}
g.End();
}
// Override some of the methods that can change the list;
// invoke event after each
g = ListWithChangedEvent.Public.Override.Method(typeof(int), "Add").Parameter(typeof(object), "value");
{
var i = g.Local(g.Base().Invoke("Add", new[] { g.Arg("value") }));
g.Invoke(g.This(), "OnChanged", st.Field(typeof(EventArgs), "Empty"));
g.Return(i);
}
g = ListWithChangedEvent.Public.Override.Method(typeof(void), "Clear");
{
g.Invoke(g.Base(), "Clear");
g.Invoke(g.This(), "OnChanged", st.Field(typeof(EventArgs), "Empty"));
}
g = ListWithChangedEvent.Public.Override.Indexer(typeof(object)).Index(typeof(int), "index").Setter();
{
g.Assign(g.Base()[g.Arg("index")], g.PropertyValue());
g.Invoke(g.This(), "OnChanged", st.Field(typeof(EventArgs), "Empty"));
}
}
}
using (ag.Namespace("TestEvents"))
{
TypeGen EventListener = ag.Class("EventListener");
{
FieldGen List = EventListener.Field(ListWithChangedEvent, "List");
// This will be called whenever the list changes.
CodeGen g = EventListener.Private.Method(typeof(void), "ListChanged").Parameter(typeof(object), "sender").Parameter(typeof(EventArgs), "eventArgs");
{
g.WriteLine("This is called when the event fires.");
}
g = EventListener.Public.Constructor().Parameter(ListWithChangedEvent, "list");
{
g.Assign(List, g.Arg("list"));
// Add "ListChanged" to the Changed event on "List".
g.SubscribeEvent(List, "Changed", exp.NewDelegate(ChangedEventHandler, g.This(), "ListChanged"));
}
g = EventListener.Public.Method(typeof(void), "Detach");
{
// Detach the event and delete the list
g.UnsubscribeEvent(List, "Changed", exp.NewDelegate(ChangedEventHandler, g.This(), "ListChanged"));
g.Assign(List, null);
}
}
TypeGen Test = ag.Class("Test");
{
// Test the ListWithChangedEvent class.
CodeGen g = Test.Public.Static.Method(typeof(void), "Main");
{
// Create a new list.
var list = g.Local(exp.New(ListWithChangedEvent));
// Create a class that listens to the list's change event.
var listener = g.Local(exp.New(EventListener, list));
// Add and remove items from the list.
g.Invoke(list, "Add", "item 1");
g.Invoke(list, "Clear");
g.Invoke(listener, "Detach");
}
}
}
}
// example based on the MSDN Structs Sample (struct2.cs)
public static void GenStruct2(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
TypeGen TheClass = ag.Class("TheClass");
{
TheClass.Public.Field(typeof(int), "x");
}
TypeGen TheStruct = ag.Struct("TheStruct");
{
TheStruct.Public.Field(typeof(int), "x");
}
TypeGen TestClass = ag.Class("TestClass");
{
CodeGen g = TestClass.Public.Static.Method(typeof(void), "structtaker").Parameter(TheStruct, "s");
{
ITypeMapper typeMapper = ag.TypeMapper;
g.Assign(g.Arg("s").Field("x"), 5);
}
g = TestClass.Public.Static.Method(typeof(void), "classtaker").Parameter(TheClass, "c");
{
ITypeMapper typeMapper = ag.TypeMapper;
g.Assign(g.Arg("c").Field("x"), 5);
}
g = TestClass.Public.Static.Method(typeof(void), "Main");
{
var a = g.Local(TheStruct);
g.InitObj(a);
ITypeMapper typeMapper4 = ag.TypeMapper;
var b = g.Local(exp.New(TheClass));
ITypeMapper typeMapper = ag.TypeMapper;
g.Assign(a.Field("x"), 1);
ITypeMapper typeMapper2 = ag.TypeMapper;
g.Assign(b.Field("x"), 1);
g.Invoke(TestClass, "structtaker", a);
g.Invoke(TestClass, "classtaker", b);
ITypeMapper typeMapper3 = ag.TypeMapper;
g.WriteLine("a.x = {0}", a.Field("x"));
ITypeMapper typeMapper1 = ag.TypeMapper;
g.WriteLine("b.x = {0}", b.Field("x"));
}
}
}
// example based on the MSDN Operator Overloading Sample (dbbool.cs)
public static void GenDbBool(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
ITypeMapper m = ag.TypeMapper;
TypeGen DBBool = ag.Public.Struct("DBBool");
{
// Private field that stores -1, 0, 1 for dbFalse, dbNull, dbTrue:
FieldGen value = DBBool.Field(typeof(int), "value");
// Private constructor. The value parameter must be -1, 0, or 1:
CodeGen g = DBBool.Constructor().Parameter(typeof(int), "value");
{
g.Assign(value, g.Arg("value"));
}
// The three possible DBBool values:
FieldGen dbNull = DBBool.Public.Static.ReadOnly.Field(DBBool, "dbNull", exp.New(DBBool, 0));
FieldGen dbFalse = DBBool.Public.Static.ReadOnly.Field(DBBool, "dbFalse", exp.New(DBBool, -1));
FieldGen dbTrue = DBBool.Public.Static.ReadOnly.Field(DBBool, "dbTrue", exp.New(DBBool, 1));
// Implicit conversion from bool to DBBool. Maps true to
// DBBool.dbTrue and false to DBBool.dbFalse:
g = DBBool.ImplicitConversionFrom(typeof(bool), "x");
{
var x = g.Arg("x");
g.Return(x.Conditional(dbTrue, dbFalse));
}
// Explicit conversion from DBBool to bool. Throws an
// exception if the given DBBool is dbNull, otherwise returns
// true or false:
g = DBBool.ExplicitConversionTo(typeof(bool), "x");
{
var x = g.Arg("x");
g.If(x.Field("value") == 0);
{
g.Throw(exp.New(typeof(InvalidOperationException)));
}
g.End();
g.Return(x.Field("value") > 0);
}
// Equality operator. Returns dbNull if either operand is dbNull,
// otherwise returns dbTrue or dbFalse:
g = DBBool.Operator(Operator.Equality, DBBool, DBBool, "x", DBBool, "y");
{
var x = g.Arg("x");
var y = g.Arg("y");
g.If(x.Field("value") == 0 || y.Field("value") == 0);
{
g.Return(dbNull);
}
g.End();
g.Return((x.Field("value") == y.Field("value")).Conditional(dbTrue, dbFalse));
}
// Inequality operator. Returns dbNull if either operand is
// dbNull, otherwise returns dbTrue or dbFalse:
g = DBBool.Operator(Operator.Inequality, DBBool, DBBool, "x", DBBool, "y");
{
var x = g.Arg("x");
var y = g.Arg("y");
g.If(x.Field("value") == 0 || y.Field("value") == 0);
{
g.Return(dbNull);
}
g.End();
g.Return((x.Field("value") != y.Field("value")).Conditional(dbTrue, dbFalse));
}
// Logical negation operator. Returns dbTrue if the operand is
// dbFalse, dbNull if the operand is dbNull, or dbFalse if the
// operand is dbTrue:
g = DBBool.Operator(Operator.LogicalNot, DBBool, DBBool, "x");
{
var x = g.Arg("x");
g.Return(exp.New(DBBool, -x.Field("value")));
}
// Logical AND operator. Returns dbFalse if either operand is
// dbFalse, dbNull if either operand is dbNull, otherwise dbTrue:
g = DBBool.Operator(Operator.And, DBBool, DBBool, "x", DBBool, "y");
{
var x = g.Arg("x");
var y = g.Arg("y");
g.Return(exp.New(DBBool, (x.Field("value") < y.Field("value")).Conditional(x.Field("value"), y.Field("value"))));
}
// Logical OR operator. Returns dbTrue if either operand is
// dbTrue, dbNull if either operand is dbNull, otherwise dbFalse:
g = DBBool.Operator(Operator.Or, DBBool, DBBool, "x", DBBool, "y");
{
var x = g.Arg("x");
var y = g.Arg("y");
g.Return(exp.New(DBBool, (x.Field("value") > y.Field("value")).Conditional(x.Field("value"), y.Field("value"))));
}
// Definitely true operator. Returns true if the operand is
// dbTrue, false otherwise:
g = DBBool.Operator(Operator.True, typeof(bool), DBBool, "x");
{
var x = g.Arg("x");
g.Return(x.Field("value") > 0);
}
// Definitely false operator. Returns true if the operand is
// dbFalse, false otherwise:
g = DBBool.Operator(Operator.False, typeof(bool), DBBool, "x");
{
var x = g.Arg("x");
g.Return(x.Field("value") < 0);
}
// Overload the conversion from DBBool to string:
g = DBBool.ImplicitConversionTo(typeof(string), "x");
{
var x = g.Arg("x");
g.Return((x.Field("value") > 0).Conditional("dbTrue",
(x.Field("value") < 0).Conditional("dbFalse",
"dbNull")));
}
// Override the Object.Equals(object o) method:
g = DBBool.Public.Override.Method(typeof(bool), "Equals").Parameter(typeof(object), "o");
{
g.Try();
{
g.Return((g.This() == g.Arg("o").Cast(DBBool)).Cast(typeof(bool)));
}
g.CatchAll();
{
g.Return(false);
}
g.End();
}
// Override the Object.GetHashCode() method:
g = DBBool.Public.Override.Method(typeof(int), "GetHashCode");
{
g.Return(value);
}
// Override the ToString method to convert DBBool to a string:
g = DBBool.Public.Override.Method(typeof(string), "ToString");
{
g.Switch(value);
{
g.Case(-1);
g.Return("DBBool.False");
g.Case(0);
g.Return("DBBool.Null");
g.Case(1);
g.Return("DBBool.True");
g.DefaultCase();
g.Throw(exp.New(typeof(InvalidOperationException)));
}
g.End();
}
}
TypeGen Test = ag.Class("Test");
{
CodeGen g = Test.Public.Static.Method(typeof(void), "Main");
{
var a = g.Local(DBBool);
var b = g.Local(DBBool);
g.Assign(a, st.Field(DBBool, "dbTrue"));
g.Assign(b, st.Field(DBBool, "dbNull"));
g.WriteLine("!{0} = {1}", a, !a);
g.WriteLine("!{0} = {1}", b, !b);
g.WriteLine("{0} & {1} = {2}", a, b, a & b);
g.WriteLine("{0} | {1} = {2}", a, b, a | b);
// Invoke the true operator to determine the Boolean
// value of the DBBool variable:
g.If(b);
{
g.WriteLine("b is definitely true");
}
g.Else();
{
g.WriteLine("b is not definitely true");
}
g.End();
}
}
}
// example based on the MSDN User-Defined Conversions Sample (conversion.cs)
public static void GenConversion(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
TypeGen RomanNumeral = ag.Struct("RomanNumeral");
{
FieldGen value = RomanNumeral.Private.Field(typeof(int), "value");
CodeGen g = RomanNumeral.Public.Constructor().Parameter(typeof(int), "value");
{
g.Assign(value, g.Arg("value"));
}
// Declare a conversion from an int to a RomanNumeral. Note the
// the use of the operator keyword. This is a conversion
// operator named RomanNumeral:
g = RomanNumeral.Public.ImplicitConversionFrom(typeof(int));
{
// Note that because RomanNumeral is declared as a struct,
// calling new on the struct merely calls the constructor
// rather than allocating an object on the heap:
g.Return(exp.New(RomanNumeral, g.Arg("value")));
}
// Declare an explicit conversion from a RomanNumeral to an int:
g = RomanNumeral.Public.ExplicitConversionTo(typeof(int), "roman");
{
ITypeMapper typeMapper = ag.TypeMapper;
g.Return(g.Arg("roman").Field("value"));
}
// Declare an implicit conversion from a RomanNumeral to
// a string:
g = RomanNumeral.Public.ImplicitConversionTo(typeof(string));
{
g.Return("Conversion not yet implemented");
}
}
TypeGen Test = ag.Class("Test");
{
CodeGen g = Test.Public.Static.Method(typeof(void), "Main");
{
var numeral = g.Local(RomanNumeral);
g.Assign(numeral, 10);
// Call the explicit conversion from numeral to int. Because it is
// an explicit conversion, a cast must be used:
g.WriteLine(numeral.Cast(typeof(int)));
// Call the implicit conversion to string. Because there is no
// cast, the implicit conversion to string is the only
// conversion that is considered:
g.WriteLine(numeral);
// Call the explicit conversion from numeral to int and
// then the explicit conversion from int to short:
var s = g.Local(numeral.Cast(typeof(short)));
g.WriteLine(s);
}
}
}
// example based on the MSDN User-Defined Conversions Sample (structconversion.cs)
public static void GenStructConversion(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
TypeGen BinaryNumeral = ag.Struct("BinaryNumeral");
{
FieldGen value = BinaryNumeral.Private.Field(typeof(int), "value");
CodeGen g = BinaryNumeral.Public.Constructor().Parameter(typeof(int), "value");
{
g.Assign(value, g.Arg("value"));
}
g = BinaryNumeral.Public.ImplicitConversionFrom(typeof(int));
{
g.Return(exp.New(BinaryNumeral, g.Arg("value")));
}
g = BinaryNumeral.Public.ImplicitConversionTo(typeof(string));
{
g.Return("Conversion not yet implemented");
}
g = BinaryNumeral.Public.ExplicitConversionTo(typeof(int), "binary");
{
ITypeMapper typeMapper = ag.TypeMapper;
g.Return(g.Arg("binary").Field("value"));
}
}
TypeGen RomanNumeral = ag.Struct("RomanNumeral");
{
FieldGen value = RomanNumeral.Private.Field(typeof(int), "value");
CodeGen g = RomanNumeral.Public.Constructor().Parameter(typeof(int), "value");
{
g.Assign(value, g.Arg("value"));
}
g = RomanNumeral.Public.ImplicitConversionFrom(typeof(int));
{
g.Return(exp.New(RomanNumeral, g.Arg("value")));
}
g = RomanNumeral.Public.ImplicitConversionFrom(BinaryNumeral, "binary");
{
g.Return(exp.New(RomanNumeral, g.Arg("binary").Cast(typeof(int))));
}
g = RomanNumeral.Public.ExplicitConversionTo(typeof(int), "roman");
{
ITypeMapper typeMapper = ag.TypeMapper;
g.Return(g.Arg("roman").Field("value"));
}
g = RomanNumeral.Public.ImplicitConversionTo(typeof(string));
{
g.Return("Conversion not yet implemented");
}
}
TypeGen Test = ag.Class("Test");
{
CodeGen g = Test.Public.Static.Method(typeof(void), "Main");
{
var roman = g.Local(RomanNumeral);
g.Assign(roman, 10);
var binary = g.Local(BinaryNumeral);
// Perform a conversion from a RomanNumeral to a
// BinaryNumeral:
g.Assign(binary, roman.Cast(typeof(int)).Cast(BinaryNumeral));
// Performs a conversion from a BinaryNumeral to a RomanNumeral.
// No cast is required:
g.Assign(roman, binary);
g.WriteLine(binary.Cast(typeof(int)));
g.WriteLine(binary);
}
}
}
// example based on the MSDN Indexed Properties Sample (indexedproperty.cs)
public static void GenIndexedProperty(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
CodeGen g;
ITypeMapper m = ag.TypeMapper;
TypeGen Document = ag.Public.Class("Document");
{
FieldGen TextArray = Document.Private.Field(typeof(char[]), "TextArray"); // The text of the document.
// Type allowing the document to be viewed like an array of words:
TypeGen WordCollection = Document.Public.Class("WordCollection");
{
FieldGen document = WordCollection.ReadOnly.Field(Document, "document"); // The containing document
var document_TextArray = document.Field("TextArray", m); // example of a saved expression - it is always re-evaluated when used
g = WordCollection.Internal.Constructor().Parameter(Document, "d");
{
g.Assign(document, g.Arg("d"));
}
// Helper function -- search character array "text", starting at
// character "begin", for word number "wordCount." Returns false
// if there are less than wordCount words.Sets "start" and
// length" to the position and length of the word within text:
g = WordCollection.Private.Method(typeof(bool), "GetWord")
.Parameter(typeof(char[]), "text")
.Parameter(typeof(int), "begin")
.Parameter(typeof(int), "wordCount")
.Out.Parameter(typeof(int), "start")
.Out.Parameter(typeof(int), "length")
;
{
ContextualOperand text = g.Arg("text"), begin = g.Arg("begin"), wordCount = g.Arg("wordCount"),
start = g.Arg("start"), length = g.Arg("length");
var end = g.Local(text.ArrayLength());
var count = g.Local(0);
var inWord = g.Local(-1);
g.Assign(start, length.Assign(0));
var i = g.Local();
g.For(i.Assign(begin), i <= end, i.Increment());
{
var isLetter = g.Local(i < end && st.Invoke(typeof(char), "IsLetterOrDigit", text[i]));
g.If(inWord >= 0);
{
g.If(!isLetter);
{
g.If(count.PostIncrement() == wordCount);
{
g.Assign(start, inWord);
g.Assign(length, i - inWord);
g.Return(true);
}
g.End();
g.Assign(inWord, -1);
}
g.End();
}
g.Else();
{
g.If(isLetter);
{
g.Assign(inWord, i);
}
g.End();
}
g.End();
}
g.End();
g.Return(false);
}
// Indexer to get and set words of the containing document:
PropertyGen Item = WordCollection.Public.Indexer(typeof(string)).Index(typeof(int), "index");
{
g = Item.Getter();
{
var index = g.Arg("index");
var start = g.Local(0);
var length = g.Local(0);
g.If(g.This().Invoke("GetWord", document_TextArray, 0, index, start.Ref(), length.Ref()));
{
g.Return(exp.New(typeof(string), document_TextArray, start, length));
}
g.Else();
{
g.Throw(exp.New(typeof(IndexOutOfRangeException)));
}
g.End();
}
g = Item.Setter();
{
var index = g.Arg("index");
var value = g.PropertyValue();
var start = g.Local(0);
var length = g.Local(0);
g.If(g.This().Invoke("GetWord", document_TextArray, 0, index, start.Ref(), length.Ref()));
{
// Replace the word at start/length with the
// string "value":
g.If(length == value.Property("Length"));
{
g.Invoke(typeof(Array), "Copy", value.Invoke("ToCharArray"), 0,
document_TextArray, start, length);
}
g.Else();
{
var newText = g.Local(exp.NewArray(typeof(char),
document_TextArray.ArrayLength() + value.Property("Length") - length));
g.Invoke(typeof(Array), "Copy", document_TextArray, 0, newText,
0, start);
g.Invoke(typeof(Array), "Copy", value.Invoke("ToCharArray"), 0, newText,
start, value.Property("Length"));
g.Invoke(typeof(Array), "Copy", document_TextArray, start + length,
newText, start + value.Property("Length"),
document_TextArray.ArrayLength() - start
- length);
g.Assign(document_TextArray, newText);
}
g.End();
}
g.Else();
{
g.Throw(exp.New(typeof(IndexOutOfRangeException)));
}
g.End();
}
}
// Get the count of words in the containing document:
g = WordCollection.Public.Property(typeof(int), "Count").Getter();
{
ContextualOperand count = g.Local(0), start = g.Local(0), length = g.Local(0);
g.While(g.This().Invoke("GetWord", document_TextArray, start + length, 0, start.Ref(), length.Ref()));
{
g.Increment(count);
}
g.End();
g.Return(count);
}
}
// Type allowing the document to be viewed like an "array"
// of characters:
TypeGen CharacterCollection = Document.Public.Class("CharacterCollection");
{
FieldGen document = CharacterCollection.ReadOnly.Field(Document, "document"); // The containing document
var document_TextArray = document.Field("TextArray", m);
g = CharacterCollection.Internal.Constructor().Parameter(Document, "d");
{
g.Assign(document, g.Arg("d"));
}
// Indexer to get and set characters in the containing document:
PropertyGen Item = CharacterCollection.Public.Indexer(typeof(char)).Index(typeof(int), "index");
{
g = Item.Getter();
{
g.Return(document_TextArray[g.Arg("index")]);
}
g = Item.Setter();
{
g.Assign(document_TextArray[g.Arg("index")], g.PropertyValue());
}
}
// Get the count of characters in the containing document:
g = CharacterCollection.Public.Property(typeof(int), "Count").Getter();
{
g.Return(document_TextArray.ArrayLength());
}
}
// Because the types of the fields have indexers,
// these fields appear as "indexed properties":
FieldGen Words = Document.Public.ReadOnly.Field(WordCollection, "Words");
FieldGen Characters = Document.Public.ReadOnly.Field(CharacterCollection, "Characters");
g = Document.Public.Constructor().Parameter(typeof(string), "initialText");
{
g.Assign(TextArray, g.Arg("initialText").Invoke("ToCharArray"));
g.Assign(Words, exp.New(WordCollection, g.This()));
g.Assign(Characters, exp.New(CharacterCollection, g.This()));
}
g = Document.Public.Property(typeof(string), "Text").Getter();
{
g.Return(exp.New(typeof(string), TextArray));
}
}
TypeGen Test = ag.Class("Test");
{
g = Test.Public.Static.Method(typeof(void), "Main");
{
var d = g.Local(exp.New(Document, "peter piper picked a peck of pickled peppers. How many pickled peppers did peter piper pick?"));
// Change word "peter" to "penelope":
var i = g.Local();
g.For(i.Assign(0), i < d.Field("Words").Property("Count"), i.Increment());
{
g.If(d.Field("Words")[i] == "peter");
{
g.Assign(d.Field("Words")[i], "penelope");
}
g.End();
}
g.End();
// Change character "p" to "P"
g.For(i.Assign(0), i < d.Field("Characters").Property("Count"), i.Increment());
{
g.If(d.Field("Characters")[i] == 'p');
{
g.Assign(d.Field("Characters")[i], 'P');
}
g.End();
}
g.End();
g.WriteLine(d.Property("Text"));
}
}
}
// example based on the MSDN Delegates Sample (bookstore.cs)
public static void GenBookstore(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
ITypeMapper m = ag.TypeMapper;
TypeGen book, processBookDelegate, BookDBLocal;
// A set of classes for handling a bookstore:
using (ag.Namespace("Bookstore"))
{
// Describes a book in the book list:
book = ag.Public.Struct("Book");
{
FieldGen title = book.Public.Field(typeof(string), "Title"); // Title of the book.
FieldGen author = book.Public.Field(typeof(string), "Author"); // Author of the book.
FieldGen price = book.Public.Field(typeof(decimal), "Price"); // Price of the book.
FieldGen paperback = book.Public.Field(typeof(bool), "Paperback"); // Is it paperback?
CodeGen g = book.Public.Constructor()
.Parameter(typeof(string), "title")
.Parameter(typeof(string), "author")
.Parameter(typeof(decimal), "price")
.Parameter(typeof(bool), "paperBack");
{
g.Assign(title, g.Arg("title"));
g.Assign(author, g.Arg("author"));
g.Assign(price, g.Arg("price"));
g.Assign(paperback, g.Arg("paperBack"));
}
}
// Declare a delegate type for processing a book:
processBookDelegate = ag.Public.Delegate(typeof(void), "ProcessBookDelegate").Parameter(book, "book");
// Maintains a book database.
BookDBLocal = ag.Public.Class("BookDB");
{
// List of all books in the database:
FieldGen list = BookDBLocal.Field(typeof(ArrayList), "list", exp.New(typeof(ArrayList)));
// Add a book to the database:
CodeGen g = BookDBLocal.Public.Method(typeof(void), "AddBook")
.Parameter(typeof(string), "title")
.Parameter(typeof(string), "author")
.Parameter(typeof(decimal), "price")
.Parameter(typeof(bool), "paperBack")
;
{
g.Invoke(list, "Add", exp.New(book, g.Arg("title"), g.Arg("author"), g.Arg("price"), g.Arg("paperBack")));
}
// Call a passed-in delegate on each paperback book to process it:
g = BookDBLocal.Public.Method(typeof(void), "ProcessPaperbackBooks").Parameter(processBookDelegate, "processBook");
{
var b = g.ForEach(book, list);
{
g.If(b.Field("Paperback"));
{
g.InvokeDelegate(g.Arg("processBook"), b);
}
g.End();
}
g.End();
}
}
}
// Using the Bookstore classes:
using (ag.Namespace("BookTestClient"))
{
// Class to total and average prices of books:
TypeGen priceTotaller = ag.Class("PriceTotaller");
{
FieldGen countBooks = priceTotaller.Field(typeof(int), "countBooks", 0);
FieldGen priceBooks = priceTotaller.Field(typeof(decimal), "priceBooks", 0.0m);
CodeGen g = priceTotaller.Internal.Method(typeof(void), "AddBookToTotal").Parameter(book, "book");
{
g.AssignAdd(countBooks, 1);
g.AssignAdd(priceBooks, g.Arg("book").Field("Price"));
}
g = priceTotaller.Internal.Method(typeof(decimal), "AveragePrice");
{
g.Return(priceBooks / countBooks);
}
}
// Class to test the book database:
TypeGen test = ag.Class("Test");
{
// Print the title of the book.
CodeGen g = test.Static.Method(typeof(void), "PrintTitle").Parameter(book, "book");
{
g.WriteLine(" {0}", g.Arg("book").Field("Title"));
}
// Initialize the book database with some test books:
g = test.Static.Method(typeof(void), "AddBooks").Parameter(BookDBLocal, "bookDB");
{
var bookDb = g.Arg("bookDB");
g.Invoke(bookDb, "AddBook", "The C Programming Language",
"Brian W. Kernighan and Dennis M. Ritchie", 19.95m, true);
g.Invoke(bookDb, "AddBook", "The Unicode Standard 2.0",
"The Unicode Consortium", 39.95m, true);
g.Invoke(bookDb, "AddBook", "The MS-DOS Encyclopedia",
"Ray Duncan", 129.95m, false);
g.Invoke(bookDb, "AddBook", "Dogbert's Clues for the Clueless",
"Scott Adams", 12.00m, true);
}
// Execution starts here.
g = test.Public.Static.Method(typeof(void), "Main");
{
var bookDb = g.Local(exp.New(BookDBLocal));
// Initialize the database with some books:
g.Invoke(test, "AddBooks", bookDb);
// Print all the titles of paperbacks:
g.WriteLine("Paperback Book Titles:");
// Create a new delegate object associated with the static
// method Test.PrintTitle:
g.Invoke(bookDb, "ProcessPaperbackBooks", (Operand)exp.NewDelegate(processBookDelegate, test, "PrintTitle"));
// Get the average price of a paperback by using
// a PriceTotaller object:
var totaller = g.Local(exp.New(priceTotaller));
// Create a new delegate object associated with the nonstatic
// method AddBookToTotal on the object totaller:
g.Invoke(bookDb, "ProcessPaperbackBooks", (Operand)exp.NewDelegate(processBookDelegate, totaller, "AddBookToTotal"));
g.WriteLine("Average Paperback Book Price: ${0:#.##}",
totaller.Invoke("AveragePrice"));
}
}
}
}
// example based on the MSDN Delegates Sample (compose.cs)
public static void GenCompose(AssemblyGen ag)
{
var st = ag.StaticFactory;
var exp = ag.ExpressionFactory;
TypeGen myDelegate = ag.Delegate(typeof(void), "MyDelegate").Parameter(typeof(string), "string");
TypeGen myClass = ag.Class("MyClass");
{
CodeGen g = myClass.Public.Static.Method(typeof(void), "Hello").Parameter(typeof(string), "s");
{
g.WriteLine(" Hello, {0}!", g.Arg("s"));
}
g = myClass.Public.Static.Method(typeof(void), "Goodbye").Parameter(typeof(string), "s");
{
g.WriteLine(" Goodbye, {0}!", g.Arg("s"));
}
g = myClass.Public.Static.Method(typeof(void), "Main");
{
ContextualOperand a = g.Local(), b = g.Local(), c = g.Local(), d = g.Local();
// Create the delegate object a that references
// the method Hello:
ITypeMapper typeMapper = ag.TypeMapper;
g.Assign(a, exp.NewDelegate(myDelegate, myClass, "Hello"));
// Create the delegate object b that references
// the method Goodbye:
ITypeMapper typeMapper1 = ag.TypeMapper;
g.Assign(b, exp.NewDelegate(myDelegate, myClass, "Goodbye"));
// The two delegates, a and b, are composed to form c,
// which calls both methods in order:
g.Assign(c, a + b);
// Remove a from the composed delegate, leaving d,
// which calls only the method Goodbye:
g.Assign(d, c - a);
g.WriteLine("Invoking delegate a:");
g.InvokeDelegate(a, "A");
g.WriteLine("Invoking delegate b:");
g.InvokeDelegate(b, "B");
g.WriteLine("Invoking delegate c:");
g.InvokeDelegate(c, "C");
g.WriteLine("Invoking delegate d:");
g.InvokeDelegate(d, "D");
}
}
}
