[#InferDescriptor]
= InferDescriptor
:mrdocs:

Find a descriptor for the specified `script`, using information from `provider` where possible.

== Synopsis

Declared in `<script/descriptor.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::unique_ptr<Descriptor>
InferDescriptor(
    xref:CScript.adoc[CScript] const& script,
    xref:SigningProvider.adoc[SigningProvider] const& provider);
----

== Description

A non‐ranged descriptor which only generates the specified script will be returned in all circumstances.

For public keys with key origin information, this information will be preserved in the returned descriptor.

* If all information for solving `script` is present in `provider`, a descriptor will be returned which is IsSolvable() and encapsulates said information.
* Failing that, if `script` corresponds to a known address type, an "addr()" descriptor will be returned (which is not IsSolvable()).
* Failing that, a "raw()" descriptor is returned.

== Return Value

The inferred descriptor for the script.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *script* [in]
| The script to infer a descriptor for.
| *provider* [in]
| Source of extra key and script information used during inference.
|===


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