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22 lines
473 B
Go
22 lines
473 B
Go
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package objects
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// append(arr, items...)
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func builtinAppend(args ...Object) (Object, error) {
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if len(args) < 2 {
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return nil, ErrWrongNumArguments
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}
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switch arg := args[0].(type) {
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case *Array:
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return &Array{Value: append(arg.Value, args[1:]...)}, nil
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case *ImmutableArray:
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return &Array{Value: append(arg.Value, args[1:]...)}, nil
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default:
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return nil, ErrInvalidArgumentType{
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Name: "first",
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Expected: "array",
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Found: arg.TypeName(),
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}
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}
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}
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