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package scala.tools.nsc
package backend.jvm
package opt
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import scala.tools.testing.BytecodeTesting._
@RunWith(classOf[JUnit4])
class InlinerSeparateCompilationTest {
val args = "-opt:l:classpath"
@Test
def inlineMixedinMember(): Unit = {
val codeA =
"""trait T {
| @inline def f = 0
|}
|object O extends T {
| @inline def g = 1
|}
""".stripMargin
val codeB =
"""class C {
| def t1(t: T) = t.f
| def t2 = O.f
| def t3 = O.g
|}
""".stripMargin
val warn = "T::f()I is annotated @inline but could not be inlined:\nThe method is not final and may be overridden."
val List(c, o, oMod, t) = compileClassesSeparately(List(codeA, codeB), args + " -opt-warnings", _.msg contains warn)
assertInvoke(getMethod(c, "t1"), "T", "f")
assertNoInvoke(getMethod(c, "t2"))
assertNoInvoke(getMethod(c, "t3"))
}
@Test
def inlineSealedMember(): Unit = {
val codeA =
"""sealed trait T {
| @inline def f = 1
|}
""".stripMargin
val codeB =
"""class C {
| def t1(t: T) = t.f
|}
""".stripMargin
val List(c, t) = compileClassesSeparately(List(codeA, codeB), args)
assertNoInvoke(getMethod(c, "t1"))
}
@Test
def inlineInheritedMember(): Unit = {
val codeA =
"""trait T {
| @inline final def f = 1
|}
|trait U extends T {
| @inline final def g = f
|}
""".stripMargin
val codeB =
"""class C extends U {
| def t1 = this.f
| def t2 = this.g
| def t3(t: T) = t.f
|}
""".stripMargin
val List(c, t, u) = compileClassesSeparately(List(codeA, codeB), args)
for (m <- List("t1", "t2", "t3")) assertNoInvoke(getMethod(c, m))
}
@Test
def inlineWithSelfType(): Unit = {
val assembly =
"""trait Assembly extends T {
| @inline final def g = 1
| @inline final def n = m
|}
""".stripMargin
val codeA =
s"""trait T { self: Assembly =>
| @inline final def f = g
| @inline final def m = 1
|}
|$assembly
""".stripMargin
val List(a, t) = compileClassesSeparately(List(codeA, assembly), args)
assertNoInvoke(getMethod(t, "f"))
assertNoInvoke(getMethod(a, "n"))
}
}
|
