linearization

I've been trying to make PHP program to autofill PDF files using data from database using FPDF, but I get this error FPDF-Merge Error: Fast Web View mode is not supported I've been looking for a free program that doesn't leave watermarks or modify the PDF that removes the Fast Web View, but couldn't find one. Is there any way that I could disable it? All valid linearized (Fast Web View) PDFs are also valid un-linearized PDFs, so it's hard to see why FPDF would complain - the worst it could do is produce an output file which is not linearized. Our cpdf tool can remove linearization easily: cpdf

If you can definitely prove that a method has no linearization points, does it necessarily mean that that method is not linearizable? Also, as a sub question, how can you prove that a method has no linearizatioon points? If you can definitely prove that a method has no linearization points, does it necessarily mean that that method is not linearizable? Firstly, linearizability is not property of a method, it is property of execution sequence. how can you prove that a method has no linearizatioon points? It depends on the execution sequence whether we are able to find linearization point for

I want to do this: trait Renderable { def render: String } trait Parens extends Renderable { abstract override def render = "(" + super.render + ")" } object Foo extends Renderable with Parens { def render = "Hello" } But this does not work because the linearization order puts Parens after Foo (Foo always comes, of course) so Parens can't advise Foo.render. I end up doing this: trait FooRender { def render = "Hello" } object Foo extends FooRender with Parens { } But sometimes I really don't want to do that because it breaks things up. As far as I can tell, linearization order is the only thing

This doesn't work: trait Trait class Class extends Trait with Trait Compiler complains: <console>:8: error: trait Trait is inherited twice class Class extends Trait with Trait ^ <console>:8: error: trait Trait is inherited twice class Class extends Trait with Trait ^ This does: trait Trait class Abstraction extends Trait class Implementation extends Abstraction with Trait Questions: Why does it work? How is the second snippet different? (concerning the double inheritance issue) Is the second snippet or pattern somehow useful? Second snippet works because of trait linearization. The compiler