public IInterpreter OverridingMethodWithIndexerGetter()
{
var interpreter = new Interpreter.Interpreter();
foreach (var mutability in Options.AllMutabilityModes)
{
var env = Language.Environment.Create(new Options()
{
AllowInvalidMainResult = true,
DebugThrowOnError = true
}.SetMutability(mutability));
var root_ns = env.Root;
root_ns.AddBuilder(TypeBuilder.CreateInterface("IProvider")
.With(FunctionBuilder.CreateDeclaration(NameFactory.PropertyIndexerName, ExpressionReadMode.ReadRequired, NameFactory.Int64NameReference())
.Parameters(FunctionParameter.Create("x", NameFactory.Int64NameReference()))));
root_ns.AddBuilder(TypeBuilder.Create("Middle")
.Parents("IProvider")
.SetModifier(EntityModifier.Base)
.With(FunctionBuilder.Create(NameFactory.PropertyIndexerName, ExpressionReadMode.ReadRequired, NameFactory.Int64NameReference(),
Block.CreateStatement(Return.Create(Int64Literal.Create("500"))))
.SetModifier(EntityModifier.Override | EntityModifier.UnchainBase)
.Parameters(FunctionParameter.Create("x", NameFactory.Int64NameReference(), ExpressionReadMode.CannotBeRead))));
root_ns.AddBuilder(TypeBuilder.Create("Last")
.Parents("Middle")
.SetModifier(EntityModifier.Base)
.With(PropertyBuilder.CreateIndexer(env.Options, NameFactory.Int64NameReference())
.Parameters(FunctionParameter.Create("x", NameFactory.Int64NameReference(), ExpressionReadMode.CannotBeRead))
.With(PropertyMemberBuilder.CreateIndexerGetter(Block.CreateStatement(Return.Create(Int64Literal.Create("2"))))
.Modifier(EntityModifier.Override | EntityModifier.UnchainBase))));
root_ns.AddBuilder(FunctionBuilder.Create(
"main",
ExpressionReadMode.OptionalUse,
NameFactory.Int64NameReference(),
Block.CreateStatement(new IExpression[] {
VariableDeclaration.CreateStatement("p", NameFactory.PointerNameReference("IProvider"),
ExpressionFactory.HeapConstructor("Last")),
Return.Create(FunctionCall.Create(NameReference.Create("p", NameFactory.PropertyIndexerName),
FunctionArgument.Create(Int64Literal.Create("18"))))
})));
ExecValue result = interpreter.TestRun(env);
Assert.AreEqual(2L, result.RetValue.PlainValue);
}
return(interpreter);
}