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randombool_seeded.go
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/
randombool_seeded.go
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// Code generated by __generator__/interpreter.go at once
package builtin
import (
"math/rand"
"github.com/ysugimoto/falco/interpreter/context"
"github.com/ysugimoto/falco/interpreter/function/errors"
"github.com/ysugimoto/falco/interpreter/value"
)
const Randombool_seeded_Name = "randombool_seeded"
var Randombool_seeded_ArgumentTypes = []value.Type{value.IntegerType, value.IntegerType, value.IntegerType}
func Randombool_seeded_Validate(args []value.Value) error {
if len(args) != 3 {
return errors.ArgumentNotEnough(Randombool_seeded_Name, 3, args)
}
for i := range args {
if args[i].Type() != Randombool_seeded_ArgumentTypes[i] {
return errors.TypeMismatch(Randombool_seeded_Name, i+1, Randombool_seeded_ArgumentTypes[i], args[i].Type())
}
}
return nil
}
// Fastly built-in function implementation of randombool_seeded
// Arguments may be:
// - INTEGER, INTEGER, INTEGER
// Reference: https://developer.fastly.com/reference/vcl/functions/randomness/randombool-seeded/
func Randombool_seeded(ctx *context.Context, args ...value.Value) (value.Value, error) {
// Argument validations
if err := Randombool_seeded_Validate(args); err != nil {
return value.Null, err
}
numerator := value.Unwrap[*value.Integer](args[0])
denominator := value.Unwrap[*value.Integer](args[1])
seed := value.Unwrap[*value.Integer](args[2])
if denominator.Value <= 0 {
return &value.Boolean{Value: false}, nil
}
r := rand.New(rand.NewSource(seed.Value))
rv := r.Float64()
ratio := float64(numerator.Value) / float64(denominator.Value)
return &value.Boolean{Value: rv < ratio}, nil
}