[#BloombergLP-baljsn-EncodeImplUtil-encodeObjectPrefix]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/baljsn.adoc[baljsn]::xref:BloombergLP/baljsn/EncodeImplUtil.adoc[EncodeImplUtil]::encodeObjectPrefix
:relfileprefix: ../../../
:mrdocs:

Encode a JSON object‐open token when `formattingMode` is tagged.

== Synopsis

Declared in `<baljsn_encodeimplutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void
encodeObjectPrefix(
    bool* isPrefixEmpty,
    FORMATTER* formatter,
    xref:BloombergLP/baljsn/EncodeImplUtil/FormattingMode.adoc[FormattingMode] formattingMode);
----

== Description

If the specified `formattingMode` does not have the `bdlat_FormattingMode::e_UNTAGGED` bit set, encode a "left brace" JSON token to the specified `formatter`, and encoding nothing to the `formatter` otherwise. If this operation encodes a token to the formatter, load the value `false` to the specified `isPrefixEmpty`, and the value `true` otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *isPrefixEmpty*
| receives whether no prefix token was encoded
| *formatter*
| JSON formatter that receives the encoded tokens
| *formattingMode*
| formatting‐mode bit‐field for the object
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#