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// See LICENSE for license details.
package chiselTests
import Chisel.ChiselException
import org.scalatest._
import chisel3._
import chisel3.stage.ChiselStage
import org.scalatest.matchers.should.Matchers
class BundleWithAnonymousInner(val w: Int) extends Bundle {
val inner = new Bundle {
val foo = Input(UInt(w.W))
}
}
class AutoNestedCloneSpec extends ChiselFlatSpec with Matchers with Utils {
behavior of "autoCloneType of inner Bundle in Chisel3"
it should "clone a doubly-nested inner bundle successfully" in {
ChiselStage.elaborate {
class Outer(val w: Int) extends Module {
class Middle(val w: Int) {
class InnerIOType extends Bundle {
val in = Input(UInt(w.W))
}
def getIO: InnerIOType = new InnerIOType
}
val io = IO(new Bundle {})
val myWire = Wire((new Middle(w)).getIO)
}
new Outer(2)
}
}
it should "clone an anonymous inner bundle successfully" in {
ChiselStage.elaborate {
class TestTop(val w: Int) extends Module {
val io = IO(new Bundle {})
val myWire = Wire(new Bundle{ val a = UInt(w.W) })
}
new TestTop(2)
}
}
it should "pick the correct $outer instance for an anonymous inner bundle" in {
ChiselStage.elaborate {
class Inner(val w: Int) extends Module {
val io = IO(new Bundle{
val in = Input(UInt(w.W))
val out = Output(UInt(w.W))
})
}
class Outer(val w: Int) extends Module {
val io = IO(new Bundle{
val in = Input(UInt(w.W))
val out = Output(UInt(w.W))
})
val i = Module(new Inner(w))
val iw = Wire(chiselTypeOf(i.io))
iw <> io
i.io <> iw
}
new Outer(2)
}
}
it should "clone an anonymous, bound, inner bundle of another bundle successfully" in {
ChiselStage.elaborate {
class TestModule(w: Int) extends Module {
val io = IO(new BundleWithAnonymousInner(w) )
val w0 = WireDefault(io)
val w1 = WireDefault(io.inner)
}
new TestModule(8)
}
}
it should "clone an anonymous, inner bundle of a Module, bound to another bundle successfully" in {
ChiselStage.elaborate {
class TestModule(w: Int) extends Module {
val bun = new Bundle {
val foo = UInt(w.W)
}
val io = IO(new Bundle {
val inner = Input(bun)
})
val w0 = WireDefault(io)
val w1 = WireDefault(io.inner)
}
new TestModule(8)
}
}
it should "clone a double-nested anonymous Bundle" in {
ChiselStage.elaborate {
class TestModule() extends Module {
val io = IO(new Bundle {
val inner = Input(new Bundle {
val x = UInt(8.W)
})
})
}
new TestModule()
}
}
// Test ignored because the compatibility null-inserting autoclonetype doesn't trip this
ignore should "fail on anonymous doubly-nested inner bundle with clear error" in {
intercept[ChiselException] { extractCause[ChiselException] { ChiselStage.elaborate {
class Outer(val w: Int) extends Module {
class Middle(val w: Int) {
def getIO: Bundle = new Bundle {
val in = Input(UInt(w.W))
}
}
val io = IO(new Bundle {})
val myWire = Wire((new Middle(w)).getIO)
}
new Outer(2)
}}}.getMessage should include("Unable to determine instance")
}
}
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