(make-compilation-manager-load/use-compiled-handler
)
PROCEDURE
Returns a procedure suitable as a value for
the current-load/use-compiled
parameter
(see section 7.7.1.6 in PLT MzScheme: Language Manual). The returned procedure
passes it arguments on to the
current current-load/use-compiled
procedure (i.e., the one
installed when this function is called), but first it automatically
compiles source files to a .zo file if
the file is expected to contain a module (i.e., the second argument to the handler is a symbol);
the value of each
of current-eval
, current-load
,
and current-namespace
is the same as
when make-compilation-manager-load/use-compiled-handler
was
called;
the value of current-load/use-compiled
is the result
of this function; and
one of the following holds:
the source file is newer than the .zo file in the compiled subdirectory;
no .dep file exists next to the .zo file;
the version recorded in the .dep file does not
match the result of (
;version
)
one of the files listed in the .dep file has a .zo timestamp newer than the one recorded in the .dep file.
After the handler procedure compiles a .zo file, it creates a
corresponding .dep file that lists the current version, plus
the .zo timestamp for every file that is require
d by
the module in the compiled file
(including require-for-syntax
es).
The handler caches timestamps when it checks .dep files, and the cache is maintained across calls to the same handler. The cache is not consulted to compare the immediate source file to its .zo file, which means that the caching behavior is consistent with the caching of the default module name resolver (see section 5.4 in PLT MzScheme: Language Manual).
(managed-compile-zo
file
)
PROCEDURE
Compiles the given module source file to a .zo, installing a
compilation-manager handler while the file is compiled (so that
required modules are also compiled), and creating a .dep file
to record the timestamps of immediate files used to compile the
source (i.e., files require
d in the source, including
require-for-syntax
es).
(manager-trace-handler
proc
[procedure
])
A parameter whose value is a procedure to return a trace string for compilation-manager actions. The procedure receives a single string argument, and its result is ignored.
(trust-existing-zos
on?
[procedure
])
A parameter that is intended for use by Setup PLT when installing with pre-built .zo files. It causes a compilation-manager load/use-compiled handler to ``touch'' out-of-date .zo files instead of re-compiling from source.