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Diffstat (limited to 'lib/compiler/doc/src')
| -rw-r--r-- | lib/compiler/doc/src/notes.xml | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/lib/compiler/doc/src/notes.xml b/lib/compiler/doc/src/notes.xml index 740cbcf8eb..3f53a71764 100644 --- a/lib/compiler/doc/src/notes.xml +++ b/lib/compiler/doc/src/notes.xml @@ -31,6 +31,105 @@ <p>This document describes the changes made to the Compiler application.</p> +<section><title>Compiler 4.8</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Add '-callback' attributes in stdlib's behaviours</p> + <p> + Replace the behaviour_info(callbacks) export in stdlib's + behaviours with -callback' attributes for all the + callbacks. Update the documentation with information on + the callback attribute Automatically generate + 'behaviour_info' function from '-callback' attributes</p> + <p> + 'behaviour_info(callbacks)' is a special function that is + defined in a module which describes a behaviour and + returns a list of its callbacks.</p> + <p> + This function is now automatically generated using the + '-callback' specs. An error is returned by lint if user + defines both '-callback' attributes and the + behaviour_info/1 function. If no type info is needed for + a callback use a generic spec for it. Add '-callback' + attribute to language syntax</p> + <p> + Behaviours may define specs for their callbacks using the + familiar spec syntax, replacing the '-spec' keyword with + '-callback'. Simple lint checks are performed to ensure + that no callbacks are defined twice and all types + referred are declared.</p> + <p> + These attributes can be then used by tools to provide + documentation to the behaviour or find discrepancies in + the callback definitions in the callback module.</p> + <p> + Add callback specs into 'application' module in kernel + Add callback specs to tftp module following internet + documentation Add callback specs to inets_service module + following possibly deprecated comments</p> + <p> + Own Id: OTP-9621</p> + </item> + <item> + <p> + The calculation of the 'uniq' value for a fun (see + <c>erlang:fun_info/1</c>) was too weak and has been + strengthened. It used to be based on the only the code + for the fun body, but it is now based on the MD5 of the + BEAM code for the module.</p> + <p> + Own Id: OTP-9667</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Variables are now now allowed in '<c>fun M:F/A</c>' as + suggested by Richard O'Keefe in EEP-23.</p> + <p>The representation of '<c>fun M:F/A</c>' in the + abstract format has been changed in an incompatible way. + Tools that directly read or manipulate the abstract + format (such as parse transforms) may need to be updated. + The compiler can handle both the new and the old format + (i.e. extracting the abstract format from a pre-R15 BEAM + file and compiling it using compile:forms/1,2 will work). + The <c>syntax_tools</c> application can also handle both + formats.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-9643</p> + </item> + <item> + <p> + <c>filename:find_src/1,2</c> will now work on stripped + BEAM files (reported by Per Hedeland). The HiPE compiler + will also work on stripped BEAM files. The BEAM compiler + will no longer include compilation options given in the + source code itself in <c>M:module_info(compile)</c> + (because those options will be applied anyway if the + module is re-compiled).</p> + <p> + Own Id: OTP-9752</p> + </item> + <item> + <p>Inlining binary matching could cause an internal + compiler error. (Thanks to Rene Kijewski for reporting + this bug.)</p> + <p> + Own Id: OTP-9770</p> + </item> + </list> + </section> + +</section> + <section><title>Compiler 4.7.5</title> <section><title>Fixed Bugs and Malfunctions</title> |