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ferret/pkg/stdlib/math/pow.go
Tim Voronov 1af8b37a0f
New type system (#232)
* New type system

* Fixed dot notation for HTML elements
2019-02-13 12:31:18 -05:00

37 lines
835 B
Go

package math
import (
"context"
"math"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/runtime/values/types"
)
// Pow returns the base to the exponent value.
// @param base (Int|Float) - The base value.
// @param exp (Int|Float) - The exponent value.
// @returns (Float) - The exponentiated value.
func Pow(_ context.Context, args ...core.Value) (core.Value, error) {
err := core.ValidateArgs(args, 2, 2)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[0], types.Int, types.Float)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[1], types.Int, types.Float)
if err != nil {
return values.None, err
}
return values.NewFloat(math.Pow(toFloat(args[0]), toFloat(args[1]))), nil
}