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Update wikipage Major changes between ISE Eiffel 15.12 and ISE Eiffel 16.05. (Signed-off-by:alexk).

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git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@1577 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
This commit is contained in:
eiffel-org
2016-06-01 09:04:59 +00:00
parent 29e79af06c
commit 534652e533
1 changed files with 31 additions and 31 deletions
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62
documentation/trunk/eiffelstudio/eiffelstudio-reference/compiler/compiler-history/Major-changes-between-ISE-Eiffel-15.12-and-ISE-Eiffel-16.05.wiki
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@@ -16,36 +16,36 @@ This is achieved as follows:
The change allows dropping explicit detachable marks in local declarations and simplifying the code that uses Result, e.g.
<code>
foo: X
local
r: detachable X
do
r := something
if not attached r then
r := something_else_attached
end
Result := r
end
foo: X
local
r: detachable X
do
r := something
if not attached r then
r := something_else_attached
end
Result := r
end
foo: X
do
if attached something as r then
Result := r
else
Result := something_else_attached
end
end
foo: X
do
if attached something as r then
Result := r
else
Result := something_else_attached
end
end
</code>
into
<code>
foo: X
do
Result := something
if not attached Result then
Result := something_else_attached
end
end
foo: X
do
Result := something
if not attached Result then
Result := something_else_attached
end
end
</code>
The change does not allow previously void-unsafe code to be treated as void-safe, but may affect errors reported by the compiler, in particular:
@@ -58,11 +58,11 @@ The change does not allow previously void-unsafe code to be treated as void-safe
* Improve performance of code using across iterator.<br/> Breaking change causes you to the need of add a redefinition of index_set to have code compatible with both 15.12 and 16.05.
* Optimized code generation for iteration instruction calls to <code>after</code> and <code>forth</code> by rechecking the code with the actual type of a cursor variable.
* Added <code>lower</code> and <code>upper</code> to {READABLE_INDEXABLE} to be used instead of <code>index_set</code> by iteration cursor.
* Added <code>lower</code> and <code>upper</code> to <code>READABLE_INDEXABLE</code> to be used instead of <code>index_set</code> by iteration cursor.
* Marked <code>{READABLE_INDEXABLE}.index_set</code> as obsolete in favor of <code>lower</code> and <code>upper</code> to avoid object creation, especially when implementing external cursors for iterative forms of a loop.
* Provided implementation of <code>index_set</code> in {READABLE_INDEXABLE} so that it can be removed in descendants.
* Made <code>lower_defined</code> and <code>upper_defined</code> in {INTEGER_INTERVAL} always True because this was the case for all created objects and clients almost never checked if boundaries were defined.
* Provided specialized versions of iteration cursors for SPECIAL, ARRAY, ARRAYED_LIST, READABLE_STRING_8, READABLE_STRING_32 to improve performance of across loops for these containers.
* Provided implementation of <code>index_set</code> in <code>READABLE_INDEXABLE</code> so that it can be removed in descendants.
* Made <code>lower_defined</code> and <code>upper_defined</code> in <code>INTEGER_INTERVAL</code> always <code>True</code> because this was the case for all created objects and clients almost never checked if boundaries were defined.
* Provided specialized versions of iteration cursors for <code>SPECIAL</code>, <code>ARRAY</code>, <code>ARRAYED_LIST</code>, <code>READABLE_STRING_8</code>, <code>READABLE_STRING_32</code> to improve performance of across loops for these containers.
==Changes==
@@ -98,8 +98,8 @@ failure
end
</code>
* Fix .NET code generation to generate verifiable code when converting a manifest integer constant compatible with a NATURAL_64 (see eweasel test#dotnet118)
* Fix invalid .NET code generation when you inherit from a .NET class where one of the following routines is frozen: Equals, Finalize, ToString and/or GetHashCode (see eweasel test#dotnet119)
* Fix .NET code generation to generate verifiable code when converting a manifest integer constant compatible with a <code>NATURAL_64</code> (see eweasel test#dotnet118)
* Fix invalid .NET code generation when you inherit from a .NET class where one of the following routines is frozen: <code>Equals</code>, <code>Finalize</code>, <code>ToString</code> and/or <code>GetHashCode</code> (see eweasel test#dotnet119)
* Fix invalid inlining of routine involving an object test local, an iteration cursor or a separate instruction local (see bug#18028, test#final114, test#final123, test#bench019).
* Fix test#scoop077 by applying SCOOP semantics rules and checking SCOOP validity rules for iteration cursors.
* Fix an issue when extracting a type ID from a string involving the separate keyword.