MetadataReference.CreateFromFile Method

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Creates a reference to an assembly or standalone module stored in a file. Reads the content of the file into memory.

public static Microsoft.CodeAnalysis.PortableExecutableReference CreateFromFile (string path, Microsoft.CodeAnalysis.MetadataReferenceProperties properties = default, Microsoft.CodeAnalysis.DocumentationProvider documentation = default);

public static Microsoft.CodeAnalysis.PortableExecutableReference CreateFromFile (string path, Microsoft.CodeAnalysis.MetadataReferenceProperties properties = default, Microsoft.CodeAnalysis.DocumentationProvider? documentation = default);

static member CreateFromFile : string * Microsoft.CodeAnalysis.MetadataReferenceProperties * Microsoft.CodeAnalysis.DocumentationProvider -> Microsoft.CodeAnalysis.PortableExecutableReference

Public Shared Function CreateFromFile (path As String, Optional properties As MetadataReferenceProperties = Nothing, Optional documentation As DocumentationProvider = Nothing) As PortableExecutableReference

Parameters

path: String

Path to the assembly file.

properties: MetadataReferenceProperties

Reference properties (extern aliases, type embedding, MetadataImageKind).

documentation: DocumentationProvider

Provides XML documentation for symbol found in the reference.

Returns

PortableExecutableReference

Exceptions

ArgumentNullException

path is null.

ArgumentException

path is invalid.

IOException

An error occurred while reading the file.

Remarks

Performance considerations:

It is recommended to use CreateFromFile(String) or CreateFromFile(String) API when creating multiple references to the same file. Reusing Metadata object allows for sharing data across these references.

The method eagerly reads the entire content of the file into native heap. The native memory block is released when the resulting reference becomes unreachable and GC collects it. To decrease memory footprint of the reference and/or manage the lifetime deterministically use CreateFromFile(String) to create an IDisposable metadata object and GetReference(DocumentationProvider, ImmutableArray<String>, Boolean, String, String) to get a reference to it.

Applies to

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