Getting error when changing type of a var from int to float64

[serge-hulne]

The following program sample.gop triggers an unexpected result

// add a sample
package main

import (
	"fmt"
	"math"
)

//type vector []int
type vector []float64

func main() {
	// Declaring two vectors
	var x vector = [1, 0, 1]
	var y vector = [0, 1, 0]

	// Sum of two vectors
	println(x + y)

	// Scalar product of two vectors
	println(x * y)

	// Module of a vector
	println(mod(x))
}

func (a vector) + (b vector) vector {
	var v vector
	for k, _ <- a {
		v = append(v, a[k]+b[k])
	}
	return v
}

func (a vector) * (b vector) int {
	s := 0
	for k, _ <- a {
		s += a[k] * b[k]
	}
	return s
}

func mod(v vector) float64 {
	return math.Sqrt(float64(v * v))
}

Expected result

[1 1 1]
0
1.4142135623730951

Got

panic: gox.fatalMsg("don't call End(), please use EndInit() instead") [recovered]
	panic: gox.fatalMsg("don't call End(), please use EndInit() instead")

goroutine 1 [running]:
github.com/goplus/gop/cl.(*pkgCtx).handleRecover(...)
	/Users/sergehulne/gop/cl/compile.go:347
github.com/goplus/gop/cl.(*pkgCtx).loadSymbol.func1()
	/Users/sergehulne/gop/cl/compile.go:325 +0x19c
panic({0x10246ee00, 0x1400040a7a0})
	/usr/local/go/src/runtime/panic.go:838 +0x204
github.com/goplus/gox.fatal(...)
	/Users/sergehulne/go/bin/pkg/mod/github.com/goplus/gox@v1.9.7/package.go:50
github.com/goplus/gox.(*VarDecl).End(0x40?, 0x0?)
	/Users/sergehulne/go/bin/pkg/mod/github.com/goplus/gox@v1.9.7/type_var_and_const.go:140 +0x3c
github.com/goplus/gox.(*CodeBuilder).End(0x14000292048)
	/Users/sergehulne/go/bin/pkg/mod/github.com/goplus/gox@v1.9.7/codebuild.go:2336 +0x17c
github.com/goplus/gop/cl.loadFuncBody(0x1400037bb00, 0x41?, 0x14000107200)
	/Users/sergehulne/gop/cl/compile.go:810 +0x64
github.com/goplus/gop/cl.loadFunc(0x1400037bb00, 0x0, 0x14000107230)
	/Users/sergehulne/gop/cl/compile.go:751 +0x604
github.com/goplus/gop/cl.preloadFile.func2()
	/Users/sergehulne/gop/cl/compile.go:593 +0x7c
github.com/goplus/gop/cl.(*baseLoader).load(0x1024834c0?)
	/Users/sergehulne/gop/cl/compile.go:170 +0x28
github.com/goplus/gop/cl.(*pkgCtx).loadSymbol(0x1400006e1e0, {0x14000122734, 0x4})
	/Users/sergehulne/gop/cl/compile.go:335 +0x15c
github.com/goplus/gop/cl.loadFile(0x1400006e1e0, 0x1400006e1e0?)
	/Users/sergehulne/gop/cl/compile.go:447 +0xbc
github.com/goplus/gop/cl.NewPackage({0x0, 0x0}, 0x140001078c0, 0x14000177ca8)
	/Users/sergehulne/gop/cl/compile.go:392 +0x4b8
github.com/goplus/gop/x/gopproj.(*gopFiles).GenGo(0x140001342e0, {0x1400016c080, 0x40}, {0x1400011a420, 0x21})
	/Users/sergehulne/gop/x/gopproj/gopfiles.go:134 +0x2dc
github.com/goplus/gop/x/gopproj.(*Context).GoCommand(0x140001061a0?, {0x1023d6ee6, 0x3}, 0x140001329a0)
	/Users/sergehulne/gop/x/gopproj/projctx.go:94 +0x1d4
github.com/goplus/gop/cmd/internal/run.gopRun({0x140001061a0?, 0x140001061a0?, 0x1400013de78?})
	/Users/sergehulne/gop/cmd/internal/run/run.go:105 +0x2bc
github.com/goplus/gop/cmd/internal/run.runCmd(0x1400011e120?, {0x140001061a0?, 0x0?, 0x12961eec8?})
	/Users/sergehulne/gop/cmd/internal/run/run.go:63 +0xc8
main.main()
	/Users/sergehulne/gop/cmd/gop/main.go:108 +0x518

Gop Version

gop v1.1.0-alpha1-104-g353daa5c darwin/arm64

Additional Notes

The error appears when I change int to float64 in the definition of vector:

//type vector []int
type vector []float64

[visualfc]

sample.gop

must change func (a vector) * (b vector) int

func (a vector) * (b vector) float64 {
	var s float64
	for k, _ <- a {
		s += a[k] * b[k]
	}
	return s
}

[serge-hulne]

Thanks.