func roundFloat64(x constant.Value) constant.Value {
f, _ := constant.Float64Val(x)
if !math.IsInf(f, 0) {
return constant.MakeFloat64(f)
}
return nil
}
// goVal returns the Go value for val, or nil.
func goVal(val constant.Value) interface{} {
// val should exist, but be conservative and check
if val == nil {
return nil
}
// Match implementation restriction of other compilers.
// gc only checks duplicates for integer, floating-point
// and string values, so only create Go values for these
// types.
switch val.Kind() {
case constant.Int:
if x, ok := constant.Int64Val(val); ok {
return x
}
if x, ok := constant.Uint64Val(val); ok {
return x
}
case constant.Float:
if x, ok := constant.Float64Val(val); ok {
return x
}
case constant.String:
return constant.StringVal(val)
}
return nil
}
func fitsFloat64(x constant.Value) bool {
f, _ := constant.Float64Val(x)
return !math.IsInf(f, 0)
}