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Reverted previous commit as I think it is wedging under -optimise. No
review.
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Made some changes to fjbg so when people run into #1133 at least it will
tell them what method was the cause. The fact that ten files are touched
in this commit instead of one or two is a testament to the wonder of
checked exceptions. No review.
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ldc being used instead of bipush or sipush. The cheaper instructions
were only being used when the argument was typed as byte or short, but
an Int in the byte or short range can as easily use them. This also
saves an entry in the constant pool.
iconst_n not being used except on Ints. Same issue in reverse: pushing
short 3 on the stack is cheaper with iconst_3 than with sipush.
Example:
class A {
def f1: Int = 100 // was ldc #X, now bipush 100
def f2: Int = 5000 // was ldc #X, now sipush 5000
def f3: Byte = 2 // was bipush 2, now iconst_2
def f4: Short = 2 // was sipush 2, now iconst_2
}
Review by dragos.
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Restoring negative literal parsing behavior to what should be the least
surprising option. Thanks much to Johannes Rudolph for identifying the
bug in the bytecode generator which needed addressing for us to arrive
at proper -0.0 behavior, and for writing the majority of this patch.
A '-' followed immediately by either a number or a period should now
always be treated as a single numeric literal, which means the minus
binds more tightly than anything else. A specific example of how this
differs from 2.8 final is:
-5.+(10) == 5.0 // and not -15.0
The full range of potentially ambiguous parses involving prefix
operators, numbers, and dots is quite large and still needs to be
completely and clearly specified.
Closes #2378 and #3657, review by odersky, jrudolph.
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Closes #3310 (very large Scala class is compiled to invalid classfile
because Scala signature can't fit into constant pool). Review by dragos.
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Scala signature is generated as an annotation (that is accessible
through Java reflection).
- compiler generates all pickled Scala signatures as annotations to class files.
- compiler can read class files with signature as annotations or old-style signatures as attributes.
- Scalap has also been updated to new signatures (contributed by Ilya Sergey: thanks a lot).
- FJBG updated to allow entering constant pool strings as byte arrays.
- ByteCodecs decode method returns the length of the decoded array.
Review by ilyas. Already mostly reviewed by odersky.
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fixing a long-standing bug in fjbg and recompiling fjbg.jar, which had
the side effect of revealing that the current fjbg jar had never been
recompiled with target 1.5, so now it's smaller and (I imagine) faster.
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Code to support invoke-dynamic for structural types. Not yet complete,
built around the JSR 292 spec of December 2008.
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Added experimental invoke dynamic support (JSR292).
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Inner classes follow their enclosing class to satisfy the Eclipse Java
compiler
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Added patch to allow definition of native methods in Scala (contribution
from Stepan Koltsov)
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Fixed many bugs in icodeReader and added basic blocks.
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Updated jars to target java 1.4 and work on 1.4 VMs
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Fixed bug #680 and #455 (duplicates) by carrying more typing context to
the backend for method calls.
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Added support for emitting Java annotations into classfiles
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Added fjbg.jar contents to the scala-compiler.jar so that the STARR
compiler accepts the new methods in fjbg to build locker.
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Switching to the new build system and to the new build system. This is a
MAJOR commit, so be careful when updating.
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