27 lines
473 B
Go
27 lines
473 B
Go
package builtins
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import (
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"fmt"
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"monkey/internal/object"
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"monkey/internal/typing"
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"os"
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)
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// Assert ...
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func Assert(args ...object.Object) object.Object {
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if err := typing.Check(
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"assert", args,
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typing.ExactArgs(2),
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typing.WithTypes(object.BooleanType, object.StringType),
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); err != nil {
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return newError(err.Error())
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}
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if !args[0].(object.Boolean).Value {
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fmt.Printf("Assertion Error: %s", args[1].(object.String).Value)
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os.Exit(1)
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}
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return nil
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}
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