T display
                String toString() { display.toString() }
            }

            abstract class ATask extends DefaultTask {
                @Input
                abstract ListProperty<$type> getProp()

                @TaskAction
                void go() {
                    println("prop = \${prop.get()}")
                }
            }

            tasks.create("thing", ATask) {

                String toString() { display.toString() }
            }

            abstract class MyTask extends DefaultTask {
                @Input
                abstract MapProperty<$keyType, $valueType> getProp()

                @TaskAction
                void go() {
                    println("prop = \${prop.get()}")
                }
            }

            def key = new Param<String>(display: 'a')

                    this.prop2 = prop2;
                }
                
                @Option(option = "prop3", description = "Configures command line option 'prop3'.")
                public void setProp3(String prop3) {
                    this.prop3 = prop3;
                }
                
                @TaskAction
                public void renderOptionValue() {

    def "extension toString() implementation can use toString() of managed property"() {
        buildFile """
            abstract class DisplayName {
                abstract Property<String> getProp()

                String toString() { return "<display name> prop=" + prop }
            }

            def displayName = extensions.create("name", DisplayName)
            println("display name = \${displayName}")

    }

    interface Params extends BuildServiceParameters {
        String getProp()

        void setProp(String value)
    }

    static abstract class ServiceImpl implements BuildService<Params> {
        static List<ServiceImpl> instances = []

        String getProp() {
            return getParameters().prop
        }

        static void reset() {

		v := c.regoff(p.GetFrom3())

		r := int(p.From.Reg)
		o1 = AOP_IRR(c.opirr(p.As), uint32(p.To.Reg), uint32(r), uint32(v))

	case 28: /* subc r1,$lcon,r2 ==> cau+or+subfc */
		if p.To.Reg == REGTMP || p.From.Reg == REGTMP {
			c.ctxt.Diag("can't synthesize large constant\n%v", p)
		}
		v := c.vregoff(p.GetFrom3())
		o1 = AOP_IRR(OP_ADDIS, REGTMP, REGZERO, uint32(v)>>16)

			}
		}
		p.From.Class = int8(a1)
	}

	a2 := C_NONE
	if p.Reg != 0 {
		a2 = rclass(p.Reg)
	}

	a3 := C_NONE
	if p.GetFrom3() != nil {
		a3 = int(p.GetFrom3().Class)
		if a3 == 0 {
			a3 = c.aclass(p.GetFrom3())
			p.GetFrom3().Class = int8(a3)
		}
	}

	a4 := int(p.To.Class)
	if a4 == 0 {
		a4 = c.aclass(&p.To)
		if p.To.Type == obj.TYPE_MEM {

			c.ctxt.Diag("number of bytes (%v) not in range [1,256]", l)
		}
		if p.GetFrom3().Index != 0 || p.To.Index != 0 {
			c.ctxt.Diag("cannot use index reg")
		}
		b1 := p.To.Reg
		b2 := p.GetFrom3().Reg
		if b1 == 0 {
			b1 = REGSP
		}
		if b2 == 0 {
			b2 = REGSP
		}
		d1 := c.regoff(&p.To)
		d2 := c.regoff(p.GetFrom3())
		if d1 < 0 || d1 >= DISP12 {
			if b2 == int16(regtmp(p)) {

		if p.From.Offset != 0 {
			q := obj.Appendp(p, c.newprog)
			q.As = AADD
			q.From.Type = obj.TYPE_CONST
			q.From.Offset = p.From.Offset
			q.To = p.To
			p.From.Offset = 0
		}
	}
	if p.GetFrom3() != nil && p.GetFrom3().Name == obj.NAME_EXTERN {
		c.ctxt.Diag("don't know how to handle %v with -dynlink", p)
	}
	var source *obj.Addr
	// MOVx sym, Ry becomes MOVD sym@GOT, REGTMP; MOVx (REGTMP), Ry

		if p.From.Offset != 0 {
			q := obj.Appendp(p, newprog)
			q.As = AADDV
			q.From.Type = obj.TYPE_CONST
			q.From.Offset = p.From.Offset
			q.To = p.To
			p.From.Offset = 0
		}
	}
	if p.GetFrom3() != nil && p.GetFrom3().Name == obj.NAME_EXTERN {
		ctxt.Diag("don't know how to handle %v with -shared", p)
	}

	var source *obj.Addr
	// MOVx sym, Ry becomes MOVV sym@GOT, REGTMP; MOVx (REGTMP), Ry