JsonAdapter class

Backend JSON adapter — emits the two stable on-disk contracts a backend localizer library reads:

• icu-json (dialect/spec/icu-json.md) — flat key → value JSON with ICU MessageFormat expressions preserved verbatim. For backends with an ICU runtime (MessageFormat.NET, intl-messageformat, …).
• flat-json (dialect/spec/flat-json.md) — same shape, but every plural / select / selectordinal collapses to its other branch and typed placeholders drop their format suffix. For backends with no ICU runtime that only do plain {placeholder} interpolation.

Both formats share the file shape: a UTF-8 JSON object, flat string keys (the ARB key verbatim — never nested), 2-space indent, LF endings, trailing newline, keys sorted lexicographically. @@-metadata and @key blocks are never emitted — the locale is in the filename and metadata is an ARB-side concern.

Namespace filtering and translation-metadata stripping are handled upstream by ArbAdapter.prepare; this adapter only encodes the already-filtered ArbFile. That keeps the namespace contract identical across every output format.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

encode(ArbFile arb, {required bool stripPlurals}) → JsonEncodeResult

Encode a (namespace-filtered) arb to backend JSON.

filenameFor(String locale) → String

Filename for a backend JSON locale file: <locale>.json (e.g. en.json, pt-BR.json). Both icu-json and flat-json use it.

handles(String format) → bool

True for the two formats this adapter handles.