25 lines
427 B
Go
25 lines
427 B
Go
package builtins
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import (
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"monkey/internal/object"
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"monkey/internal/typing"
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)
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// Abs ...
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func Abs(args ...object.Object) object.Object {
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if err := typing.Check(
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"abs", args,
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typing.ExactArgs(1),
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typing.WithTypes(object.IntegerType),
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); err != nil {
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return newError(err.Error())
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}
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i := args[0].(*object.Integer)
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value := i.Value
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if value < 0 {
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value = value * -1
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}
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return &object.Integer{Value: value}
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}
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