public void ExpressionHeap_ShareGlobals()
{
var p0 = Expression.Parameter(typeof(int));
var p1 = Expression.Parameter(typeof(int));
var ps = new Expression[]
{
/* 0 */ p0,
/* 1 */ p1,
/* 2 */ Expression.Parameter(typeof(int), "test:foo"),
/* 3 */ Expression.Parameter(typeof(int), "test:foo"),
/* 4 */ Expression.Parameter(typeof(int), "test:bar"),
/* 5 */ Expression.Parameter(typeof(int), "not:foo"),
/* 6 */ Expression.Parameter(typeof(int), "not:foo"),
/* 7 */ Expression.Parameter(typeof(long), "test:foo"),
/* 8 */ Expression.Invoke(Expression.Lambda(p0, p0), p0),
/* 9 */ Expression.Invoke(Expression.Lambda(p0, p0), p1),
};
Assert.AreNotSame(ps[0], ps[1]);
Assert.AreNotSame(ps[2], ps[3]);
var heap = new TestHeap();
var rs = ps.Select(p => heap.Create(p)).ToArray();
Assert.AreNotSame(rs[0].Value, rs[1].Value);
Assert.AreNotSame(rs[2].Value, rs[4].Value);
Assert.AreNotSame(rs[5].Value, rs[6].Value);
Assert.AreNotSame(rs[2].Value, rs[7].Value);
Assert.AreSame(rs[2].Value, rs[3].Value);
// Rebuild must be scoped
Assert.AreSame(((InvocationExpression)ps[8]).Expression, ((InvocationExpression)rs[9].Value).Expression);
}
