29 lines
563 B
Go
29 lines
563 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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"syscall"
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)
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// Write ...
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func Write(args ...object.Object) object.Object {
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if err := typing.Check(
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"write", args,
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typing.ExactArgs(2),
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typing.WithTypes(object.IntegerType, object.IntegerType),
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); err != nil {
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return newError(err.Error())
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}
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fd := int(args[0].(*object.Integer).Value)
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data := []byte(args[1].(*object.String).Value)
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n, err := syscall.Write(fd, data)
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if err != nil {
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return newError("IOError: %s", err)
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}
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return &object.Integer{Value: int64(n)}
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}
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