[p5sagit/p5-mst-13.2.git] / Todo

Tie Modules
	VecArray		Implement array using vec()
	SubstrArray		Implement array using substr()
	VirtualArray		Implement array using a file
	ShiftSplice		Defines shift et al in terms of splice method

Would be nice to have
	pack "(stuff)*"
	Contiguous bitfields in pack/unpack
	lexperl
	Bundled perl preprocessor
	Use posix calls internally where possible
	gettimeofday
	format BOTTOM
	-iprefix.
	-i rename file only when successfully changed
	All ARGV input should act like <>
	report HANDLE [formats].
	support in perlmain to rerun debugger
	regression tests using __DIE__ hook
	reference to compiled regexp
	lexically scoped functions: my sub foo { ... }
	lvalue functions
	Full 64 bit support

Possible pragmas
	debugger
	optimize (use less memory, CPU)

Optimizations
	constant function cache
	switch structures
	eval qw() at compile time
	foreach (1..1000000)
	foreach(reverse...)
	Set KEEP on constant split
	Cache eval tree (unless lexical outer scope used (mark in &compiling?))
	rcatmaybe
	Shrink opcode tables via multiple implementations selected in peep
	Cache hash value?  (Not a win, according to Guido)
	Optimize away @_ where possible
	"one pass" global destruction
	Optimize sort by { $a <=> $b }
	Rewrite regexp parser for better integrated optimization
	LRU cache of regexp: foreach $pat (@pats) { foo() if /$pat/ }

Vague possibilities
	ref function in list context
	data prettyprint function?  (or is it, as I suspect, a lib routine?)
	make tr/// return histogram in list context?
	Loop control on do{} et al
	Explicit switch statements
	built-in globbing
	compile to real threaded code
	structured types
	autocroak?
	Modifiable $1 et al
	substr EXPR,OFFSET,LENGTH,STRING
Commit	Line	Data
8990e307	1	Tie Modules
	2	VecArray Implement array using vec()
	3	SubstrArray Implement array using substr()
	4	VirtualArray Implement array using a file
	5	ShiftSplice Defines shift et al in terms of splice method
93a17b20	6
8990e307	7	Would be nice to have
463ee0b2	8	pack "(stuff)*"
85e6fe83	9	Contiguous bitfields in pack/unpack
463ee0b2	10	lexperl
463ee0b2	11	Bundled perl preprocessor
8990e307	12	Use posix calls internally where possible
8990e307	13	gettimeofday
8990e307	14	format BOTTOM
8990e307	15	-iprefix.
2304df62	16	-i rename file only when successfully changed
8990e307	17	All ARGV input should act like <>
2304df62	18	report HANDLE [formats].
a0d0e21e	19	support in perlmain to rerun debugger
aa00cc68	20	regression tests using __DIE__ hook
	21	reference to compiled regexp
	22	lexically scoped functions: my sub foo { ... }
	23	lvalue functions
2a26e2f1	24	Full 64 bit support
8990e307	25
a0d0e21e	26	Possible pragmas
85e6fe83	27	debugger
a0d0e21e	28	optimize (use less memory, CPU)
463ee0b2	29
463ee0b2	30	Optimizations
a0d0e21e	31	constant function cache
a0d0e21e	32	switch structures
4633a7c4	33	eval qw() at compile time
a0d0e21e	34	foreach (1..1000000)
a0d0e21e	35	foreach(reverse...)
463ee0b2	36	Set KEEP on constant split
	37	Cache eval tree (unless lexical outer scope used (mark in &compiling?))
	38	rcatmaybe
	39	Shrink opcode tables via multiple implementations selected in peep
a0d0e21e	40	Cache hash value? (Not a win, according to Guido)
ed6116ce	41	Optimize away @_ where possible
8990e307	42	"one pass" global destruction
2304df62	43	Optimize sort by { $a <=> $b }
a0d0e21e	44	Rewrite regexp parser for better integrated optimization
aa00cc68	45	LRU cache of regexp: foreach $pat (@pats) { foo() if /$pat/ }
463ee0b2	46
a0d0e21e	47	Vague possibilities
8990e307	48	ref function in list context
463ee0b2	49	data prettyprint function? (or is it, as I suspect, a lib routine?)
463ee0b2	50	make tr/// return histogram in list context?
463ee0b2	51	Loop control on do{} et al
463ee0b2	52	Explicit switch statements
463ee0b2	53	built-in globbing
	54	compile to real threaded code
	55	structured types
85e6fe83	56	autocroak?
a0d0e21e	57	Modifiable $1 et al
a0d0e21e	58	substr EXPR,OFFSET,LENGTH,STRING
a0d0e21e	59