public void IdentifierOnlyInvocation()
{
// InitializeComponents();
IdentifierExpression identifier = new IdentifierExpression("InitializeComponents");
InvocationExpression invocation = new InvocationExpression(identifier, new List<Expression>());
object output = invocation.AcceptVisitor(new CodeDomVisitor(), null);
Assert.IsTrue(output is CodeMethodInvokeExpression);
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)output;
Assert.AreEqual("InitializeComponents", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeThisReferenceExpression);
}
public void MethodOnThisReferenceInvocation()
{
// InitializeComponents();
MemberReferenceExpression field = new MemberReferenceExpression(new ThisReferenceExpression(), "InitializeComponents");
InvocationExpression invocation = new InvocationExpression(field, new List<Expression>());
object output = invocation.AcceptVisitor(new CodeDomVisitor(), null);
Assert.IsTrue(output is CodeMethodInvokeExpression);
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)output;
Assert.AreEqual("InitializeComponents", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeThisReferenceExpression);
}
public void InvocationOfStaticMethod()
{
// System.Drawing.Color.FromArgb();
MemberReferenceExpression field = new MemberReferenceExpression(new IdentifierExpression("System"), "Drawing");
field = new MemberReferenceExpression(field, "Color");
field = new MemberReferenceExpression(field, "FromArgb");
InvocationExpression invocation = new InvocationExpression(field, new List<Expression>());
object output = invocation.AcceptVisitor(new CodeDomVisitor(), null);
Assert.IsTrue(output is CodeMethodInvokeExpression);
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)output;
Assert.AreEqual("FromArgb", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeTypeReferenceExpression);
Assert.AreEqual("System.Drawing.Color", (mie.Method.TargetObject as CodeTypeReferenceExpression).Type.BaseType);
}
public override object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
Expression target = invocationExpression.TargetObject;
CodeExpression targetExpr;
string methodName = null;
if (target == null) {
targetExpr = new CodeThisReferenceExpression();
} else if (target is MemberReferenceExpression) {
MemberReferenceExpression fRef = (MemberReferenceExpression)target;
targetExpr = null;
if (fRef.TargetObject is MemberReferenceExpression) {
if (IsPossibleTypeReference((MemberReferenceExpression)fRef.TargetObject)) {
targetExpr = ConvertToTypeReference((MemberReferenceExpression)fRef.TargetObject);
}
}
if (targetExpr == null)
targetExpr = (CodeExpression)fRef.TargetObject.AcceptVisitor(this, data);
methodName = fRef.MemberName;
// HACK for : Microsoft.VisualBasic.ChrW(NUMBER)
if (methodName == "ChrW") {
return new CodeCastExpression("System.Char", GetExpressionList(invocationExpression.Arguments)[0]);
}
} else if (target is IdentifierExpression) {
targetExpr = new CodeThisReferenceExpression();
methodName = ((IdentifierExpression)target).Identifier;
} else {
targetExpr = (CodeExpression)target.AcceptVisitor(this, data);
}
return new CodeMethodInvokeExpression(targetExpr, methodName, GetExpressionList(invocationExpression.Arguments));
}
public override sealed object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
this.BeginVisit(invocationExpression);
object result = this.TrackedVisitInvocationExpression(invocationExpression, data);
this.EndVisit(invocationExpression);
return result;
}
public virtual object TrackedVisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
return base.VisitInvocationExpression(invocationExpression, data);
}
void CheckGenericInvoke(InvocationExpression expr)
{
Assert.AreEqual(1, expr.Arguments.Count);
Assert.IsTrue(expr.TargetObject is IdentifierExpression);
IdentifierExpression ident = (IdentifierExpression)expr.TargetObject;
Assert.AreEqual("myMethod", ident.Identifier);
Assert.AreEqual(1, ident.TypeArguments.Count);
Assert.AreEqual("System.Char", ident.TypeArguments[0].Type);
}
void CheckSimpleInvoke(InvocationExpression ie)
{
Assert.AreEqual(0, ie.Arguments.Count);
Assert.IsTrue(ie.TargetObject is IdentifierExpression);
Assert.AreEqual("myMethod", ((IdentifierExpression)ie.TargetObject).Identifier);
}
void CheckGenericInvoke2(InvocationExpression expr)
{
Assert.AreEqual(0, expr.Arguments.Count);
Assert.IsTrue(expr.TargetObject is IdentifierExpression);
IdentifierExpression ident = (IdentifierExpression)expr.TargetObject;
Assert.AreEqual("myMethod", ident.Identifier);
Assert.AreEqual(2, ident.TypeArguments.Count);
Assert.AreEqual("T", ident.TypeArguments[0].Type);
Assert.IsFalse(ident.TypeArguments[0].IsKeyword);
Assert.AreEqual("System.Boolean", ident.TypeArguments[1].Type);
Assert.IsTrue(ident.TypeArguments[1].IsKeyword);
}
public virtual object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
Debug.Assert((invocationExpression != null));
Debug.Assert((invocationExpression.TargetObject != null));
Debug.Assert((invocationExpression.Arguments != null));
invocationExpression.TargetObject.AcceptVisitor(this, data);
foreach (Expression o in invocationExpression.Arguments) {
Debug.Assert(o != null);
o.AcceptVisitor(this, data);
}
return null;
}
public virtual object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
throw new global::System.NotImplementedException("InvocationExpression");
}
void ReDimClauseInternal(ref Expression expr)
{
List<Expression> arguments; bool canBeNormal; bool canBeRedim; string name; Location startLocation = la.Location;
while (la.kind == 26 || (la.kind == Tokens.OpenParenthesis && Peek(1).kind == Tokens.Of)) {
if (la.kind == 26) {
Get();
IdentifierOrKeyword(out name);
expr = new MemberReferenceExpression(expr, name) { StartLocation = startLocation, EndLocation = t.EndLocation };
} else {
InvocationExpression(ref expr);
expr.StartLocation = startLocation;
expr.EndLocation = t.EndLocation;
}
}
Expect(37);
NormalOrReDimArgumentList(out arguments, out canBeNormal, out canBeRedim);
Expect(38);
expr = new InvocationExpression(expr, arguments);
if (canBeRedim == false || canBeNormal && (la.kind == Tokens.Dot || la.kind == Tokens.OpenParenthesis)) {
if (this.Errors.Count == 0) {
// don't recurse on parse errors - could result in endless recursion
ReDimClauseInternal(ref expr);
}
}
}
void InvocationExpression(ref Expression pexpr)
{
List<Expression> parameters = null;
Expect(37);
Location start = t.Location;
ArgumentList(out parameters);
Expect(38);
pexpr = new InvocationExpression(pexpr, parameters);
pexpr.StartLocation = start; pexpr.EndLocation = t.Location;
}
void ExpressionStatement(out Statement statement)
{
Expression expr = null;
Expression val = null;
AssignmentOperatorType op;
Location startLoc = la.Location;
bool mustBeAssignment = la.kind == Tokens.Plus || la.kind == Tokens.Minus ||
la.kind == Tokens.Not || la.kind == Tokens.Times;
SimpleExpr(out expr);
if (StartOf(46)) {
AssignmentOperator(out op);
Expr(out val);
expr = new AssignmentExpression(expr, op, val);
expr.StartLocation = startLoc;
expr.EndLocation = t.EndLocation;
} else if (la.kind == 1 || la.kind == 21 || la.kind == 111) {
if (mustBeAssignment) Error("error in assignment.");
} else SynErr(312);
if(expr is MemberReferenceExpression || expr is IdentifierExpression) {
Location endLocation = expr.EndLocation;
expr = new InvocationExpression(expr);
expr.StartLocation = startLoc;
expr.EndLocation = endLocation;
}
statement = new ExpressionStatement(expr);
}
public virtual object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
Debug.Assert((invocationExpression != null));
Debug.Assert((invocationExpression.TargetObject != null));
Debug.Assert((invocationExpression.Arguments != null));
nodeStack.Push(invocationExpression.TargetObject);
invocationExpression.TargetObject.AcceptVisitor(this, data);
invocationExpression.TargetObject = ((Expression)(nodeStack.Pop()));
for (int i = 0; i < invocationExpression.Arguments.Count; i++) {
Expression o = invocationExpression.Arguments[i];
Debug.Assert(o != null);
nodeStack.Push(o);
o.AcceptVisitor(this, data);
o = (Expression)nodeStack.Pop();
if (o == null)
invocationExpression.Arguments.RemoveAt(i--);
else
invocationExpression.Arguments[i] = o;
}
return null;
}
