blob: 35dba436c19d5846bcc96e8a02980aed472bb3d6 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
import scala.tools.partest.BytecodeTest
import scala.tools.asm
import asm.tree.InsnList
import scala.collection.JavaConverters._
object Test extends BytecodeTest {
def show: Unit = {
val classNode = loadClassNode("Foo_1")
val methodNode = getMethod(classNode, "foo")
// there should be 2 copies of the finally block, each with the magic constant 3
// one for the "normal" exit
// one for the uncaught exception exit
// prior to this PR there would have been 4 since each exception handler would also get a copy
val expected = 2
val got = countMagicThrees(methodNode.instructions)
assert(got == expected, s"expected $expected but got $got magic threes")
}
def countMagicThrees(insnList: InsnList): Int = {
def isMagicThree(node: asm.tree.AbstractInsnNode): Boolean =
(node.getOpcode == asm.Opcodes.ICONST_3)
insnList.iterator.asScala.count(isMagicThree)
}
}
|