- Mesh implementations around for code reuse. Also a detailed specification so the compiler would warn when a particular combination may not produce the desired result (i.e. combining an iterator with O(logn) collection lookup does not result in O(n) algorithm).
- Detailed stack trace when an unhandled exception happens. Requires:
- Tracing stack frames.
- Converting code address to symbols.
- Look-up function type from symbol (so we know how to print the arguments).
- The facility to convert any run-time value to a string.
- Unit testing. Also needs to convert any run-time value to a string for printing the test case that fails expectation.
- Like ocamlbuild, specify the source code for "main" executable and automatically figures out the dependencies.
- Should be able to aggregate source files into an artifact (i.e. library) and build around the artifacts.
- Leverage external Makefile targets when necessary.
- Need a way to automatically generate documentation from source code. The detail would be written as special comments.
Update: (May 29, 2009)
Higher order functions
- Lexically scoped closures. The closure doesn't have to be heap allocated. I think most closures I use do not escape.
- Higher-order function inlining. A lot of time I use higher order function to customize an algorithm, like list iterator. In these cases, inlining makes it as efficient as writing the algorithm by hand everytime I use it.
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