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gcj.texi (Class Initialization): Mention class initialization of arrays.

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* gcj.texi (Class Initialization): Mention class initialization of
	arrays.

From-SVN: r56386
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Tom Tromey 2002-08-16 21:49:33 +00:00 committed by Tom Tromey
parent f97a5bda3a
commit ca75573a5d
2 changed files with 16 additions and 10 deletions
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5
gcc/java/ChangeLog
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@ -1,3 +1,8 @@
2002-08-16 Tom Tromey <tromey@redhat.com>
* gcj.texi (Class Initialization): Mention class initialization of
arrays.
2002-07-30 Andrew Haley <aph@cambridge.redhat.com>
* Make-lang.in (java-tree-inline.o): New.

21
gcc/java/gcj.texi
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@ -1316,16 +1316,17 @@ programmer's responsibility to make sure classes are initialized.
However, this is fairly painless because of the conventions assumed by
the Java system.
First, @code{libgcj} will make sure a class is initialized
before an instance of that object is created. This is one
of the responsibilities of the @code{new} operation. This is
taken care of both in Java code, and in C++ code. (When the G++
compiler sees a @code{new} of a Java class, it will call
a routine in @code{libgcj} to allocate the object, and that
routine will take care of initializing the class.) It follows that you can
access an instance field, or call an instance (non-static)
method and be safe in the knowledge that the class and all
of its base classes have been initialized.
First, @code{libgcj} will make sure a class is initialized before an
instance of that object is created. This is one of the
responsibilities of the @code{new} operation. This is taken care of
both in Java code, and in C++ code. When G++ sees a @code{new} of a
Java class, it will call a routine in @code{libgcj} to allocate the
object, and that routine will take care of initializing the class.
Note however that this does not happen for Java arrays; you must
allocate those using the appropriate CNI function. It follows that
you can access an instance field, or call an instance (non-static)
method and be safe in the knowledge that the class and all of its base
classes have been initialized.
Invoking a static method is also safe. This is because the
Java compiler adds code to the start of a static method to make sure