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mirror of https://github.com/wader/fq.git synced 2024-11-26 10:33:53 +03:00
fq/pkg/interp/bitops.go
Mattias Wadman be0ef80c8d interp,fq: Make bit operators normal functions
Uses same rule as jq math functions, 1 arg uses input, more than one all passed as args.
So "bnot 1" -> "1 | bnot", "1 bsl 1" -> "bsl(1; 1)"

Don't think it's worth changing the jq syntax for this and also it could make fq
scripts no compatiblr with other jq tools. Non-10 base number literals are still allowed
but should probably not be used in scripts, only in repl and with cli.
2022-01-09 01:06:36 +01:00

110 lines
4.4 KiB
Go

package interp
import (
"math/big"
"github.com/wader/fq/internal/gojqextra"
"github.com/wader/gojq"
)
func init() {
functionRegisterFns = append(functionRegisterFns, func(i *Interp) []Function {
return []Function{
{"bnot", 0, 0, i.bnot, nil},
{"bsl", 2, 2, i.bsl, nil},
{"bsr", 2, 2, i.bsr, nil},
{"band", 2, 2, i.band, nil},
{"bor", 2, 2, i.bor, nil},
{"bxor", 2, 2, i.bxor, nil},
}
})
}
func (i *Interp) bnot(c interface{}, a []interface{}) interface{} {
switch c := c.(type) {
case int:
return ^c
case *big.Int:
return new(big.Int).Not(c)
case gojq.JQValue:
return i.bnot(c.JQValueToGoJQ(), a)
default:
return &gojqextra.UnaryTypeError{Name: "bnot", V: c}
}
}
func (i *Interp) bsl(c interface{}, a []interface{}) interface{} {
return gojq.BinopTypeSwitch(a[0], a[1],
func(l, r int) bool { return false }, // TODO: can be int safe i think
func(l, r int) interface{} { return l << r },
func(l, r float64) interface{} { return int(l) << int(r) },
func(l, r *big.Int) interface{} { return new(big.Int).Lsh(l, uint(r.Uint64())) },
func(l, r string) interface{} { return &gojqextra.BinopTypeError{Name: "bsl", L: l, R: r} },
func(l, r []interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bsl", L: l, R: r} },
func(l, r map[string]interface{}) interface{} {
return &gojqextra.BinopTypeError{Name: "bsl", L: l, R: r}
},
func(l, r interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bsl", L: l, R: r} },
)
}
func (i *Interp) bsr(c interface{}, a []interface{}) interface{} {
return gojq.BinopTypeSwitch(a[0], a[1],
func(l, r int) bool { return true },
func(l, r int) interface{} { return l >> r },
func(l, r float64) interface{} { return int(l) >> int(r) },
func(l, r *big.Int) interface{} { return new(big.Int).Rsh(l, uint(r.Uint64())) },
func(l, r string) interface{} { return &gojqextra.BinopTypeError{Name: "bsr", L: l, R: r} },
func(l, r []interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bsr", L: l, R: r} },
func(l, r map[string]interface{}) interface{} {
return &gojqextra.BinopTypeError{Name: "bsr", L: l, R: r}
},
func(l, r interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bsr", L: l, R: r} },
)
}
func (i *Interp) band(c interface{}, a []interface{}) interface{} {
return gojq.BinopTypeSwitch(a[0], a[1],
func(l, r int) bool { return true },
func(l, r int) interface{} { return l & r },
func(l, r float64) interface{} { return int(l) & int(r) },
func(l, r *big.Int) interface{} { return new(big.Int).And(l, r) },
func(l, r string) interface{} { return &gojqextra.BinopTypeError{Name: "band", L: l, R: r} },
func(l, r []interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "band", L: l, R: r} },
func(l, r map[string]interface{}) interface{} {
return &gojqextra.BinopTypeError{Name: "band", L: l, R: r}
},
func(l, r interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "band", L: l, R: r} },
)
}
func (i *Interp) bor(c interface{}, a []interface{}) interface{} {
return gojq.BinopTypeSwitch(a[0], a[1],
func(l, r int) bool { return true },
func(l, r int) interface{} { return l | r },
func(l, r float64) interface{} { return int(l) | int(r) },
func(l, r *big.Int) interface{} { return new(big.Int).Or(l, r) },
func(l, r string) interface{} { return &gojqextra.BinopTypeError{Name: "bor", L: l, R: r} },
func(l, r []interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bor", L: l, R: r} },
func(l, r map[string]interface{}) interface{} {
return &gojqextra.BinopTypeError{Name: "bor", L: l, R: r}
},
func(l, r interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bor", L: l, R: r} },
)
}
func (i *Interp) bxor(c interface{}, a []interface{}) interface{} {
return gojq.BinopTypeSwitch(a[0], a[1],
func(l, r int) bool { return true },
func(l, r int) interface{} { return l ^ r },
func(l, r float64) interface{} { return int(l) ^ int(r) },
func(l, r *big.Int) interface{} { return new(big.Int).Xor(l, r) },
func(l, r string) interface{} { return &gojqextra.BinopTypeError{Name: "bxor", L: l, R: r} },
func(l, r []interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bxor", L: l, R: r} },
func(l, r map[string]interface{}) interface{} {
return &gojqextra.BinopTypeError{Name: "bxor", L: l, R: r}
},
func(l, r interface{}) interface{} { return &gojqextra.BinopTypeError{Name: "bxor", L: l, R: r} },
)
}