[#llvm-xray-LogBuilder]
= xref:llvm.adoc[llvm]::xref:llvm/xray.adoc[xray]::LogBuilder
:relfileprefix: ../../
:mrdocs:

Builds ad‐hoc collections of FDR records.

== Synopsis

Declared in `<llvm/XRay/FDRLogBuilder.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class LogBuilder;
----

== Description

The LogBuilder class allows for creating ad‐hoc collections of records through the `add<...>(...)` function. An example use of this API is in crafting arbitrary sequences of records:

auto Records = LogBuilder() .add<BufferExtents>(256) .add<NewBufferRecord>(1) .consume();

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/xray/LogBuilder/add.adoc[`add`] 
| Appends a newly constructed record of type `R` to the collection.
| xref:llvm/xray/LogBuilder/consume.adoc[`consume`] 
| Moves ownership of the collected records out of this builder.
|===



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