Re: Use StringBuilder instead of PrintWriter for type display

[Andrew Cagney <cagney at redhat dot com>]

Stan Cox wrote:
> This changes type display so it builds in a StringBuilder
> instead of displaying a piece at a time.  Most of the changes are
> changing writer.print to stringBuilder.append.  A printf style %s token
> is used to support types like
> "int (*ptr_arr) [4]" where (in this instance) the name and pointer
> info have to be inserted a printf %s string is used.  For instance
> ArrayType would construct "int %s [4]" and then PointerType would
> massage that to "int (*%s) [4] and if it is member of a struct
> CompositeType would massage it to "int (*ptr_arr) [4]" (otherwise "int
> (*) [4]).  This allows removal of some instanceof checks and some
> specialized code.
>   
Yes, the result is much better.

Would a specialized class help: instead of a SingleString buffer, it 
would contain the prefix and postfix strings, and methods to edit them. 
For instance, given:
 struct s {
    (*foo)[10];
 }
ArrayType would .append("[10]");
called by PointerType would .insert("(*", ")");
called by CompositeType would .insert("foo");


Andrew