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Patrick Doyle
A prototype for a dynamic linking scheme that could be worked into the SmallEiffel compiler.
Nevertheless, it is an example of how subclasses of a real, useful interface class (namely OUTPUT_STREAM; not some cooked-up demo interface) can be loaded at runtime, despite SmallEiffel's heavy reliance on system-wide knowledge at compile time.
Unmaintained. The author writes: Unfortunately, the participants seem to have lost interest, and I don't have the raw hacking skills necessary to graft it into SmallEiffel myself, so it remains only a prototype.
The dynamic directory contains all source, plus a Makefile which will build and test the system. The dynamic.tar.gz file contains the same.
The sedl.h file is necessary to compile the test program. It must be placed in a directory such that #include
Once the test program starts, just hit ENTER to get a list of legal commands. The test program is not 100% rock-solid, so you can crash it with bad input. However, it's reasonably robust for a simple test program.
The following is an example run. The prompt is Command:. Everything on the same line as the prompt is what I typed. Everything else is output by the program (osp_test).
[doylep@pixie dynamic]$ osp_test Command: load ./module1.so Command was successful. Command: list 1: DOUBLE_OUTPUT_STREAM inherit OUTPUT_STREAM 2: LINE_REVERSING_OUTPUT_STREAM inherit OUTPUT_STREAM Command was successful. Command: test 1 TThhiiss iiss aa tteesstt ooff aa ddyynnaammiiccaallllyy--llooaaddeedd oouuttppuutt ssttrreeaamm Command was successful. Command: test 2 maerts tuptuo dedaol-yllacimanyd a fo tset a si sihT Command was successful.
