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long_string/1 was written to test that long string were handled
efficiently in beam_asm. Strings used to be stored in the string
table chunk, but are currently literals.
There does not seem that this test case is likely to find any bugs.
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Obsoleted by guard_SUITE (especially literal_type_tests/1).
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We used to put code that would crash the compiler into
compilation_SUITE_data. That way we would have a failing test case to
remind us to fix a bug.
Nowadays, we generally fix the bug and write the test case at the same
time. Therefore it makes more sense to put the test code directly into
a test suite.
Move out bin_syntax_1 through bin_syntax_5 test cases. Scrap
bin_syntax_6 because it does not longer seems to be relevant.
While we are it, rename the fun_shadow/1 test to size_shadow/1. Also
make sure that the code produces the correct result.
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The inliner was ignorant of on_load functions and would discard them
(unless they were exported or referenced).
Noticed-by: Yiannis Tsiouris <[email protected]>
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The code for generating the string table (which is now
only used for bit syntax matching) in a BEAM file is quite
complicated and potentially expensive when compiling modules
with many thousands of clauses doing bit syntax matching.
Simplify and optimize the code using bit syntax and
binary:match/2 instead of the list operations in the
original code.
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An on_load function is supposed to return 'true' to indicate
that the module should be loaded, and 'false' if it should be
unloaded. But returning any other term, as well as causing an
exception, will also unload the module.
Since we don't like boolean values mixed with other values,
change the expected return value as follows:
* If 'ok' is returned, the module will remain loaded and become
callable.
* If any other value is returned (or an exception is generated),
the module will be unloaded. Also, if the returned value is
not an atom, send a warning message to the error_logger
(using error_logger:warning_msg/2).
The new interpretation of the return value means that an on_load
function can now directly return the return value from
erlang:load_nif/2.
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