329 lines
7.5 KiB
Rust
329 lines
7.5 KiB
Rust
use std::fmt::Display;
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use cosmwasm_std::{Attribute, Event};
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use serde::{
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ser::{Impossible, SerializeStruct, SerializeStructVariant},
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Serialize,
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};
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use crate::Error;
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pub struct Serializer(Option<Event>);
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impl Serializer {
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pub const fn new() -> Self {
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Self(None)
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}
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pub fn finish(self) -> Option<Event> {
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self.0
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}
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}
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impl<'a> serde::Serializer for &'a mut Serializer {
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type Ok = ();
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type Error = Error;
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type SerializeSeq = Impossible<Self::Ok, Self::Error>;
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type SerializeTuple = Impossible<Self::Ok, Self::Error>;
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type SerializeTupleStruct = Impossible<Self::Ok, Self::Error>;
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type SerializeTupleVariant = Impossible<Self::Ok, Self::Error>;
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type SerializeMap = Impossible<Self::Ok, Self::Error>;
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type SerializeStruct = Transcoder<'a>;
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type SerializeStructVariant = Transcoder<'a>;
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#[inline]
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fn serialize_bool(self, _: bool) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_i8(self, _: i8) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_i16(self, _: i16) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_i32(self, _: i32) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_i64(self, _: i64) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_i128(self, _: i128) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_u8(self, _: u8) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_u16(self, _: u16) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_u32(self, _: u32) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_u64(self, _: u64) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_u128(self, _: u128) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_f32(self, _: f32) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_f64(self, _: f64) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_char(self, _: char) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_str(self, _: &str) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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fn serialize_bytes(self, _: &[u8]) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error>
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where
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T: Serialize,
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{
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value.serialize(self)
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}
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#[inline]
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fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
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Err(Error::NotAStruct)
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}
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fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
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if self.0.is_none() {
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self.0 = Some(Event::new(name));
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Ok(())
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} else {
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Err(Error::MultipleStructs)
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}
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}
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fn serialize_unit_variant(
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self,
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name: &'static str,
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_variant_index: u32,
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variant: &'static str,
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) -> Result<Self::Ok, Self::Error> {
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if self.0.is_none() {
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self.0 = Some(Event::new(format!("{name}::{variant}")));
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Ok(())
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} else {
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Err(Error::MultipleStructs)
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}
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}
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#[inline]
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fn serialize_newtype_struct<T: ?Sized>(
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self,
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_: &'static str,
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_: &T,
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) -> Result<Self::Ok, Self::Error>
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where
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T: Serialize,
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{
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_newtype_variant<T: ?Sized>(
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self,
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_: &'static str,
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_variant_index: u32,
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_: &'static str,
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_: &T,
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) -> Result<Self::Ok, Self::Error>
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where
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T: Serialize,
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{
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_tuple_variant(
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self,
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_: &'static str,
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_variant_index: u32,
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_: &'static str,
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_: usize,
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) -> Result<Self::SerializeTupleVariant, Self::Error> {
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Err(Error::NotAStruct)
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}
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fn serialize_struct_variant(
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self,
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name: &'static str,
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_variant_index: u32,
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variant: &'static str,
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_: usize,
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) -> Result<Self::SerializeStructVariant, Self::Error> {
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if self.0.is_none() {
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Ok(Transcoder {
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serializer: self,
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event: Event::new(format!("{name}::{variant}")),
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})
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} else {
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Err(Error::MultipleStructs)
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}
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}
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#[inline]
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fn serialize_seq(self, _: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_tuple(self, _: usize) -> Result<Self::SerializeTuple, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_tuple_struct(
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self,
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_: &'static str,
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_: usize,
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) -> Result<Self::SerializeTupleStruct, Self::Error> {
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Err(Error::NotAStruct)
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}
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#[inline]
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fn serialize_map(self, _: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
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Err(Error::NotAStruct)
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}
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fn serialize_struct(
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self,
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name: &'static str,
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_: usize,
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) -> Result<Self::SerializeStruct, Self::Error> {
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if self.0.is_none() {
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Ok(Transcoder {
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serializer: self,
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event: Event::new(name),
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})
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} else {
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Err(Error::MultipleStructs)
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}
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}
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#[inline]
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fn collect_str<T: ?Sized>(self, _: &T) -> Result<Self::Ok, Self::Error>
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where
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T: Display,
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{
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Err(Error::NotAStruct)
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}
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#[inline]
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fn is_human_readable(&self) -> bool {
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true
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}
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}
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pub struct Transcoder<'a> {
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serializer: &'a mut Serializer,
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event: Event,
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}
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impl<'a> Transcoder<'a> {
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fn serialize_field<T: ?Sized>(&mut self, k: &'static str, v: &T) -> Result<(), Error>
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where
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T: Serialize,
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{
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let key = k.into();
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let value = serde_json_wasm::to_string(v)?;
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self.event.attributes.push(Attribute { key, value });
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Ok(())
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}
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#[inline]
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fn end(self) -> Result<(), Error> {
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self.serializer.0 = Some(self.event);
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Ok(())
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}
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}
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impl<'a> SerializeStruct for Transcoder<'a> {
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type Ok = ();
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type Error = Error;
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#[inline]
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fn serialize_field<T: ?Sized>(
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&mut self,
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k: &'static str,
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v: &T,
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) -> Result<Self::Ok, Self::Error>
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where
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T: Serialize,
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{
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self.serialize_field(k, v)
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}
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#[inline]
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fn end(self) -> Result<Self::Ok, Self::Error> {
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self.end()
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}
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}
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impl<'a> SerializeStructVariant for Transcoder<'a> {
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type Ok = ();
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type Error = Error;
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#[inline]
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fn serialize_field<T: ?Sized>(
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&mut self,
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k: &'static str,
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v: &T,
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) -> Result<Self::Ok, Self::Error>
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where
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T: Serialize,
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{
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self.serialize_field(k, v)
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}
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#[inline]
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fn end(self) -> Result<Self::Ok, Self::Error> {
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self.end()
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}
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}
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