Matheus Sampaio Queiroga
813d742aff
- Add new function to ValueType conversion - Add more docs to functions and minor changes - rename entry to module - don't expose Value and Env structs. Signed-off-by: Matheus Sampaio Queiroga <srherobrine20@gmail.com>
33 lines
1.1 KiB
Go
33 lines
1.1 KiB
Go
package napi
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import (
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"unsafe"
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"sirherobrine23.com.br/Sirherobrine23/napi-go/internal/napi"
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)
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type External struct{ value }
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func ToExternal(o ValueType) *External { return &External{o} }
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// CreateExternal creates a new JavaScript external value in the given N-API environment.
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// It associates the provided data pointer with the external, and allows specifying a finalize
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// callback and a finalize hint, which will be called when the external is garbage collected.
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func CreateExternal(env EnvType, data unsafe.Pointer, finalize napi.Finalize, finalizeHint unsafe.Pointer) (*External, error) {
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napiValue, status := napi.CreateExternal(env.NapiValue(), data, finalize, finalizeHint)
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if err := status.ToError(); err != nil {
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return nil, err
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}
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return ToExternal(N_APIValue(env, napiValue)), nil
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}
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// Value retrieves the underlying unsafe.Pointer associated with the External value.
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// Returns the pointer and an error, if any occurred during retrieval.
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func (ext *External) Value() (unsafe.Pointer, error) {
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ptr, status := napi.GetValueExternal(ext.NapiEnv(), ext.NapiValue())
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if err := status.ToError(); err != nil {
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return nil, err
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}
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return ptr, nil
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}
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