Struct JSONEmitter 

pub struct JSONEmitter<'w> { /* private fields */ }

Port of hermes::JSONEmitter (include/hermes/Support/JSONEmitter.h). Emits JSON to a String. pretty adds newlines + indentation. Unbalanced dict/array use is caught via debug_assert! (C++ assert).

Strings must be valid UTF-8 (C++ takes StringRef and treats invalid UTF-8 as fatal). Non-ASCII code points are emitted as escaped UTF-16 code units.

Implementations

impl<'w> JSONEmitter<'w>

pub fn new(out: &'w mut String, pretty: bool) -> JSONEmitter<'w>

pub fn emit_bool(&mut self, val: bool)

pub fn emit_i64(&mut self, val: i64)

Covers the C++ integer overloads (short/int/long/…).

pub fn emit_u64(&mut self, val: u64)

pub fn emit_f64(&mut self, val: f64)

JSONEmitter.cpp:67 — finite via numberToString, non-finite -> “null”.

pub fn emit_str(&mut self, val: &str)

JSONEmitter.cpp:78 — emit a UTF-8 string value (not a dict key).

pub fn emit_u16(&mut self, val: &[u16])

JSONEmitter.cpp:193 — emit a value from UTF-16 code units. Each unit is emitted independently (no surrogate combination).

pub fn emit_null_value(&mut self)

pub fn emit_key_u16(&mut self, key: &[u16])

Like emit_key but takes UTF-16 code units (for WTF-8 keys that are not valid UTF-8). Port-compatible with C++ emitKey -> primitiveEmitString which decodes WTF-8 and escapes per code unit.

pub fn emit_key(&mut self, key: &str)

JSONEmitter.cpp:88 — emit a dict key.

pub fn open_dict(&mut self)

pub fn close_dict(&mut self)

pub fn open_array(&mut self)

pub fn close_array(&mut self)

pub fn end_jsonl(&mut self)

JSONEmitter.cpp:234 — terminate a JSON Lines record.