38 lines
721 B
Go
38 lines
721 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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import (
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"fmt"
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"plugin"
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)
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// FFI ...
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func FFI(args ...object.Object) object.Object {
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if err := typing.Check(
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"ffi", args,
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typing.ExactArgs(2),
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typing.WithTypes(object.StringType, object.StringType),
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); err != nil {
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return newError(err.Error())
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}
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name := args[0].(*object.String).Value
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symbol := args[1].(*object.String).Value
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p, err := plugin.Open(fmt.Sprintf("%s.so", name))
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if err != nil {
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return newError("error loading plugin: %s", err)
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}
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v, err := p.Lookup(symbol)
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if err != nil {
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return newError("error finding symbol: %s", err)
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}
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return &object.Builtin{Name: symbol, Fn: v.(object.BuiltinFunction)}
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}
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