| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.96/src/value/de.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>de.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../serde_json/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../serde_json/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| <span id="1076">1076</span> |
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| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| <span id="1080">1080</span> |
| <span id="1081">1081</span> |
| <span id="1082">1082</span> |
| <span id="1083">1083</span> |
| <span id="1084">1084</span> |
| <span id="1085">1085</span> |
| <span id="1086">1086</span> |
| <span id="1087">1087</span> |
| <span id="1088">1088</span> |
| <span id="1089">1089</span> |
| <span id="1090">1090</span> |
| <span id="1091">1091</span> |
| <span id="1092">1092</span> |
| <span id="1093">1093</span> |
| <span id="1094">1094</span> |
| <span id="1095">1095</span> |
| <span id="1096">1096</span> |
| <span id="1097">1097</span> |
| <span id="1098">1098</span> |
| <span id="1099">1099</span> |
| <span id="1100">1100</span> |
| <span id="1101">1101</span> |
| <span id="1102">1102</span> |
| <span id="1103">1103</span> |
| <span id="1104">1104</span> |
| <span id="1105">1105</span> |
| <span id="1106">1106</span> |
| <span id="1107">1107</span> |
| <span id="1108">1108</span> |
| <span id="1109">1109</span> |
| <span id="1110">1110</span> |
| <span id="1111">1111</span> |
| <span id="1112">1112</span> |
| <span id="1113">1113</span> |
| <span id="1114">1114</span> |
| <span id="1115">1115</span> |
| <span id="1116">1116</span> |
| <span id="1117">1117</span> |
| <span id="1118">1118</span> |
| <span id="1119">1119</span> |
| <span id="1120">1120</span> |
| <span id="1121">1121</span> |
| <span id="1122">1122</span> |
| <span id="1123">1123</span> |
| <span id="1124">1124</span> |
| <span id="1125">1125</span> |
| <span id="1126">1126</span> |
| <span id="1127">1127</span> |
| <span id="1128">1128</span> |
| <span id="1129">1129</span> |
| <span id="1130">1130</span> |
| <span id="1131">1131</span> |
| <span id="1132">1132</span> |
| <span id="1133">1133</span> |
| <span id="1134">1134</span> |
| <span id="1135">1135</span> |
| <span id="1136">1136</span> |
| <span id="1137">1137</span> |
| <span id="1138">1138</span> |
| <span id="1139">1139</span> |
| <span id="1140">1140</span> |
| <span id="1141">1141</span> |
| <span id="1142">1142</span> |
| <span id="1143">1143</span> |
| <span id="1144">1144</span> |
| <span id="1145">1145</span> |
| <span id="1146">1146</span> |
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| <span id="1148">1148</span> |
| <span id="1149">1149</span> |
| <span id="1150">1150</span> |
| <span id="1151">1151</span> |
| <span id="1152">1152</span> |
| <span id="1153">1153</span> |
| <span id="1154">1154</span> |
| <span id="1155">1155</span> |
| <span id="1156">1156</span> |
| <span id="1157">1157</span> |
| <span id="1158">1158</span> |
| <span id="1159">1159</span> |
| <span id="1160">1160</span> |
| <span id="1161">1161</span> |
| <span id="1162">1162</span> |
| <span id="1163">1163</span> |
| <span id="1164">1164</span> |
| <span id="1165">1165</span> |
| <span id="1166">1166</span> |
| <span id="1167">1167</span> |
| <span id="1168">1168</span> |
| <span id="1169">1169</span> |
| <span id="1170">1170</span> |
| <span id="1171">1171</span> |
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| <span id="1173">1173</span> |
| <span id="1174">1174</span> |
| <span id="1175">1175</span> |
| <span id="1176">1176</span> |
| <span id="1177">1177</span> |
| <span id="1178">1178</span> |
| <span id="1179">1179</span> |
| <span id="1180">1180</span> |
| <span id="1181">1181</span> |
| <span id="1182">1182</span> |
| <span id="1183">1183</span> |
| <span id="1184">1184</span> |
| <span id="1185">1185</span> |
| <span id="1186">1186</span> |
| <span id="1187">1187</span> |
| <span id="1188">1188</span> |
| <span id="1189">1189</span> |
| <span id="1190">1190</span> |
| <span id="1191">1191</span> |
| <span id="1192">1192</span> |
| <span id="1193">1193</span> |
| <span id="1194">1194</span> |
| <span id="1195">1195</span> |
| <span id="1196">1196</span> |
| <span id="1197">1197</span> |
| <span id="1198">1198</span> |
| <span id="1199">1199</span> |
| <span id="1200">1200</span> |
| <span id="1201">1201</span> |
| <span id="1202">1202</span> |
| <span id="1203">1203</span> |
| <span id="1204">1204</span> |
| <span id="1205">1205</span> |
| <span id="1206">1206</span> |
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| <span id="1221">1221</span> |
| <span id="1222">1222</span> |
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| <span id="1227">1227</span> |
| <span id="1228">1228</span> |
| <span id="1229">1229</span> |
| <span id="1230">1230</span> |
| <span id="1231">1231</span> |
| <span id="1232">1232</span> |
| <span id="1233">1233</span> |
| <span id="1234">1234</span> |
| <span id="1235">1235</span> |
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| <span id="1293">1293</span> |
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| <span id="1298">1298</span> |
| <span id="1299">1299</span> |
| <span id="1300">1300</span> |
| <span id="1301">1301</span> |
| <span id="1302">1302</span> |
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| <span id="1355">1355</span> |
| <span id="1356">1356</span> |
| <span id="1357">1357</span> |
| <span id="1358">1358</span> |
| <span id="1359">1359</span> |
| <span id="1360">1360</span> |
| <span id="1361">1361</span> |
| <span id="1362">1362</span> |
| <span id="1363">1363</span> |
| <span id="1364">1364</span> |
| <span id="1365">1365</span> |
| <span id="1366">1366</span> |
| <span id="1367">1367</span> |
| <span id="1368">1368</span> |
| <span id="1369">1369</span> |
| <span id="1370">1370</span> |
| <span id="1371">1371</span> |
| <span id="1372">1372</span> |
| <span id="1373">1373</span> |
| <span id="1374">1374</span> |
| <span id="1375">1375</span> |
| <span id="1376">1376</span> |
| <span id="1377">1377</span> |
| </pre><pre class="rust"><code><span class="kw">use </span><span class="kw">crate</span>::error::Error; |
| <span class="kw">use </span><span class="kw">crate</span>::map::Map; |
| <span class="kw">use </span><span class="kw">crate</span>::number::Number; |
| <span class="kw">use </span><span class="kw">crate</span>::value::Value; |
| <span class="kw">use </span>alloc::borrow::{Cow, ToOwned}; |
| <span class="kw">use </span>alloc::string::String; |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span><span class="kw">use </span>alloc::string::ToString; |
| <span class="kw">use </span>alloc::vec::{<span class="self">self</span>, Vec}; |
| <span class="kw">use </span>core::fmt; |
| <span class="kw">use </span>core::slice; |
| <span class="kw">use </span>core::str::FromStr; |
| <span class="kw">use </span>serde::de::{ |
| <span class="self">self</span>, Deserialize, DeserializeSeed, EnumAccess, Expected, IntoDeserializer, MapAccess, |
| SeqAccess, Unexpected, VariantAccess, Visitor, |
| }; |
| <span class="kw">use </span>serde::forward_to_deserialize_any; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::number::NumberFromString; |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> Deserialize<<span class="lifetime">'de</span>> <span class="kw">for </span>Value { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize<D>(deserializer: D) -> <span class="prelude-ty">Result</span><Value, D::Error> |
| <span class="kw">where |
| </span>D: serde::Deserializer<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">struct </span>ValueVisitor; |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> Visitor<<span class="lifetime">'de</span>> <span class="kw">for </span>ValueVisitor { |
| <span class="kw">type </span>Value = Value; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter.write_str(<span class="string">"any valid JSON value"</span>) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_bool<E>(<span class="self">self</span>, value: bool) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Value::Bool(value)) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_i64<E>(<span class="self">self</span>, value: i64) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Value::Number(value.into())) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_u64<E>(<span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Value::Number(value.into())) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_f64<E>(<span class="self">self</span>, value: f64) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Number::from_f64(value).map_or(Value::Null, Value::Number)) |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| #[inline] |
| </span><span class="kw">fn </span>visit_str<E>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Value, E> |
| <span class="kw">where |
| </span>E: serde::de::Error, |
| { |
| <span class="self">self</span>.visit_string(String::from(value)) |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| #[inline] |
| </span><span class="kw">fn </span>visit_string<E>(<span class="self">self</span>, value: String) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Value::String(value)) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_none<E>(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Value::Null) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_some<D>(<span class="self">self</span>, deserializer: D) -> <span class="prelude-ty">Result</span><Value, D::Error> |
| <span class="kw">where |
| </span>D: serde::Deserializer<<span class="lifetime">'de</span>>, |
| { |
| Deserialize::deserialize(deserializer) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_unit<E>(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><Value, E> { |
| <span class="prelude-val">Ok</span>(Value::Null) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>visit_seq<V>(<span class="self">self</span>, <span class="kw-2">mut </span>visitor: V) -> <span class="prelude-ty">Result</span><Value, V::Error> |
| <span class="kw">where |
| </span>V: SeqAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>vec = Vec::new(); |
| |
| <span class="kw">while let </span><span class="prelude-val">Some</span>(elem) = <span class="macro">tri!</span>(visitor.next_element()) { |
| vec.push(elem); |
| } |
| |
| <span class="prelude-val">Ok</span>(Value::Array(vec)) |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">fn </span>visit_map<V>(<span class="self">self</span>, <span class="kw-2">mut </span>visitor: V) -> <span class="prelude-ty">Result</span><Value, V::Error> |
| <span class="kw">where |
| </span>V: MapAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span>visitor.next_key_seed(KeyClassifier)<span class="question-mark">? </span>{ |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span><span class="prelude-val">Some</span>(KeyClass::Number) => { |
| <span class="kw">let </span>number: NumberFromString = visitor.next_value()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Value::Number(number.value)) |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span><span class="prelude-val">Some</span>(KeyClass::RawValue) => { |
| <span class="kw">let </span>value = visitor.next_value_seed(<span class="kw">crate</span>::raw::BoxedFromString)<span class="question-mark">?</span>; |
| <span class="kw">crate</span>::from_str(value.get()).map_err(de::Error::custom) |
| } |
| <span class="prelude-val">Some</span>(KeyClass::Map(first_key)) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>values = Map::new(); |
| |
| values.insert(first_key, <span class="macro">tri!</span>(visitor.next_value())); |
| <span class="kw">while let </span><span class="prelude-val">Some</span>((key, value)) = <span class="macro">tri!</span>(visitor.next_entry()) { |
| values.insert(key, value); |
| } |
| |
| <span class="prelude-val">Ok</span>(Value::Object(values)) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(Value::Object(Map::new())), |
| } |
| } |
| } |
| |
| deserializer.deserialize_any(ValueVisitor) |
| } |
| } |
| |
| <span class="kw">impl </span>FromStr <span class="kw">for </span>Value { |
| <span class="kw">type </span><span class="prelude-val">Err </span>= Error; |
| <span class="kw">fn </span>from_str(s: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><Value, Error> { |
| <span class="kw">super</span>::<span class="kw">super</span>::de::from_str(s) |
| } |
| } |
| |
| <span class="macro">macro_rules! </span>deserialize_number { |
| (<span class="macro-nonterminal">$method</span>:ident) => { |
| <span class="attribute">#[cfg(not(feature = <span class="string">"arbitrary_precision"</span>))] |
| </span><span class="kw">fn </span><span class="macro-nonterminal">$method</span><V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Number(n) => n.deserialize_any(visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span><span class="kw">fn </span><span class="macro-nonterminal">$method</span><V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Number(n) => n.<span class="macro-nonterminal">$method</span>(visitor), |
| <span class="kw">_ </span>=> <span class="self">self</span>.deserialize_any(visitor), |
| } |
| } |
| }; |
| } |
| |
| <span class="kw">fn </span>visit_array<<span class="lifetime">'de</span>, V>(array: Vec<Value>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>len = array.len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>deserializer = SeqDeserializer::new(array); |
| <span class="kw">let </span>seq = <span class="macro">tri!</span>(visitor.visit_seq(<span class="kw-2">&mut </span>deserializer)); |
| <span class="kw">let </span>remaining = deserializer.iter.len(); |
| <span class="kw">if </span>remaining == <span class="number">0 </span>{ |
| <span class="prelude-val">Ok</span>(seq) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(serde::de::Error::invalid_length( |
| len, |
| <span class="kw-2">&</span><span class="string">"fewer elements in array"</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">fn </span>visit_object<<span class="lifetime">'de</span>, V>(object: Map<String, Value>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>len = object.len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>deserializer = MapDeserializer::new(object); |
| <span class="kw">let </span>map = <span class="macro">tri!</span>(visitor.visit_map(<span class="kw-2">&mut </span>deserializer)); |
| <span class="kw">let </span>remaining = deserializer.iter.len(); |
| <span class="kw">if </span>remaining == <span class="number">0 </span>{ |
| <span class="prelude-val">Ok</span>(map) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(serde::de::Error::invalid_length( |
| len, |
| <span class="kw-2">&</span><span class="string">"fewer elements in map"</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> serde::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>Value { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Null => visitor.visit_unit(), |
| Value::Bool(v) => visitor.visit_bool(v), |
| Value::Number(n) => n.deserialize_any(visitor), |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span>Value::String(v) => visitor.visit_string(v), |
| Value::Array(v) => visit_array(v, visitor), |
| Value::Object(v) => visit_object(v, visitor), |
| } |
| } |
| |
| <span class="macro">deserialize_number!</span>(deserialize_i8); |
| <span class="macro">deserialize_number!</span>(deserialize_i16); |
| <span class="macro">deserialize_number!</span>(deserialize_i32); |
| <span class="macro">deserialize_number!</span>(deserialize_i64); |
| <span class="macro">deserialize_number!</span>(deserialize_i128); |
| <span class="macro">deserialize_number!</span>(deserialize_u8); |
| <span class="macro">deserialize_number!</span>(deserialize_u16); |
| <span class="macro">deserialize_number!</span>(deserialize_u32); |
| <span class="macro">deserialize_number!</span>(deserialize_u64); |
| <span class="macro">deserialize_number!</span>(deserialize_u128); |
| <span class="macro">deserialize_number!</span>(deserialize_f32); |
| <span class="macro">deserialize_number!</span>(deserialize_f64); |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_option<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Null => visitor.visit_none(), |
| <span class="kw">_ </span>=> visitor.visit_some(<span class="self">self</span>), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span>str, |
| _variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>(variant, value) = <span class="kw">match </span><span class="self">self </span>{ |
| Value::Object(value) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>iter = value.into_iter(); |
| <span class="kw">let </span>(variant, value) = <span class="kw">match </span>iter.next() { |
| <span class="prelude-val">Some</span>(v) => v, |
| <span class="prelude-val">None </span>=> { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(serde::de::Error::invalid_value( |
| Unexpected::Map, |
| <span class="kw-2">&</span><span class="string">"map with a single key"</span>, |
| )); |
| } |
| }; |
| <span class="comment">// enums are encoded in json as maps with a single key:value pair |
| </span><span class="kw">if </span>iter.next().is_some() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(serde::de::Error::invalid_value( |
| Unexpected::Map, |
| <span class="kw-2">&</span><span class="string">"map with a single key"</span>, |
| )); |
| } |
| (variant, <span class="prelude-val">Some</span>(value)) |
| } |
| Value::String(variant) => (variant, <span class="prelude-val">None</span>), |
| other => { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| other.unexpected(), |
| <span class="kw-2">&</span><span class="string">"string or map"</span>, |
| )); |
| } |
| }; |
| |
| visitor.visit_enum(EnumDeserializer { variant, value }) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_newtype_struct<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span>{ |
| <span class="kw">if </span>name == <span class="kw">crate</span>::raw::TOKEN { |
| <span class="kw">return </span>visitor.visit_map(<span class="kw">crate</span>::raw::OwnedRawDeserializer { |
| raw_value: <span class="prelude-val">Some</span>(<span class="self">self</span>.to_string()), |
| }); |
| } |
| } |
| |
| <span class="kw">let _ </span>= name; |
| visitor.visit_newtype_struct(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>deserialize_bool<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Bool(v) => visitor.visit_bool(v), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_char<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_string(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_str<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_string(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_string<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span>Value::String(v) => visitor.visit_string(v), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_bytes<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_byte_buf(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_byte_buf<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span>Value::String(v) => visitor.visit_string(v), |
| Value::Array(v) => visit_array(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_unit<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Null => visitor.visit_unit(), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_unit_struct<V>(<span class="self">self</span>, _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_unit(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_seq<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Array(v) => visit_array(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_tuple<V>(<span class="self">self</span>, _len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_tuple_struct<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _len: usize, |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_map<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Object(v) => visit_object(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_struct<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Array(v) => visit_array(v, visitor), |
| Value::Object(v) => visit_object(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_identifier<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_string(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_ignored_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| drop(<span class="self">self</span>); |
| visitor.visit_unit() |
| } |
| } |
| |
| <span class="kw">struct </span>EnumDeserializer { |
| variant: String, |
| value: <span class="prelude-ty">Option</span><Value>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>EnumDeserializer { |
| <span class="kw">type </span>Error = Error; |
| <span class="kw">type </span>Variant = VariantDeserializer; |
| |
| <span class="kw">fn </span>variant_seed<V>(<span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><(V::Value, VariantDeserializer), Error> |
| <span class="kw">where |
| </span>V: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>variant = <span class="self">self</span>.variant.into_deserializer(); |
| <span class="kw">let </span>visitor = VariantDeserializer { value: <span class="self">self</span>.value }; |
| seed.deserialize(variant).map(|v| (v, visitor)) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> IntoDeserializer<<span class="lifetime">'de</span>, Error> <span class="kw">for </span>Value { |
| <span class="kw">type </span>Deserializer = <span class="self">Self</span>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">struct </span>VariantDeserializer { |
| value: <span class="prelude-ty">Option</span><Value>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> VariantAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>VariantDeserializer { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>unit_variant(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(value) => Deserialize::deserialize(value), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(()), |
| } |
| } |
| |
| <span class="kw">fn </span>newtype_variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(value) => seed.deserialize(value), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"newtype variant"</span>, |
| )), |
| } |
| } |
| |
| <span class="kw">fn </span>tuple_variant<V>(<span class="self">self</span>, _len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(Value::Array(v)) => { |
| <span class="kw">if </span>v.is_empty() { |
| visitor.visit_unit() |
| } <span class="kw">else </span>{ |
| visit_array(v, visitor) |
| } |
| } |
| <span class="prelude-val">Some</span>(other) => <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| other.unexpected(), |
| <span class="kw-2">&</span><span class="string">"tuple variant"</span>, |
| )), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"tuple variant"</span>, |
| )), |
| } |
| } |
| |
| <span class="kw">fn </span>struct_variant<V>( |
| <span class="self">self</span>, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(Value::Object(v)) => visit_object(v, visitor), |
| <span class="prelude-val">Some</span>(other) => <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| other.unexpected(), |
| <span class="kw-2">&</span><span class="string">"struct variant"</span>, |
| )), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"struct variant"</span>, |
| )), |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>SeqDeserializer { |
| iter: vec::IntoIter<Value>, |
| } |
| |
| <span class="kw">impl </span>SeqDeserializer { |
| <span class="kw">fn </span>new(vec: Vec<Value>) -> <span class="self">Self </span>{ |
| SeqDeserializer { |
| iter: vec.into_iter(), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> SeqAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>SeqDeserializer { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_element_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>(value) => seed.deserialize(value).map(<span class="prelude-val">Some</span>), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="kw">match </span><span class="self">self</span>.iter.size_hint() { |
| (lower, <span class="prelude-val">Some</span>(upper)) <span class="kw">if </span>lower == upper => <span class="prelude-val">Some</span>(upper), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>MapDeserializer { |
| iter: <Map<String, Value> <span class="kw">as </span>IntoIterator>::IntoIter, |
| value: <span class="prelude-ty">Option</span><Value>, |
| } |
| |
| <span class="kw">impl </span>MapDeserializer { |
| <span class="kw">fn </span>new(map: Map<String, Value>) -> <span class="self">Self </span>{ |
| MapDeserializer { |
| iter: map.into_iter(), |
| value: <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapDeserializer { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_key_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>((key, value)) => { |
| <span class="self">self</span>.value = <span class="prelude-val">Some</span>(value); |
| <span class="kw">let </span>key_de = MapKeyDeserializer { |
| key: Cow::Owned(key), |
| }; |
| seed.deserialize(key_de).map(<span class="prelude-val">Some</span>) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>next_value_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value.take() { |
| <span class="prelude-val">Some</span>(value) => seed.deserialize(value), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::custom(<span class="string">"value is missing"</span>)), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="kw">match </span><span class="self">self</span>.iter.size_hint() { |
| (lower, <span class="prelude-val">Some</span>(upper)) <span class="kw">if </span>lower == upper => <span class="prelude-val">Some</span>(upper), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="macro">macro_rules! </span>deserialize_value_ref_number { |
| (<span class="macro-nonterminal">$method</span>:ident) => { |
| <span class="attribute">#[cfg(not(feature = <span class="string">"arbitrary_precision"</span>))] |
| </span><span class="kw">fn </span><span class="macro-nonterminal">$method</span><V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Number(n) => n.deserialize_any(visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span><span class="kw">fn </span><span class="macro-nonterminal">$method</span><V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Number(n) => n.<span class="macro-nonterminal">$method</span>(visitor), |
| <span class="kw">_ </span>=> <span class="self">self</span>.deserialize_any(visitor), |
| } |
| } |
| }; |
| } |
| |
| <span class="kw">fn </span>visit_array_ref<<span class="lifetime">'de</span>, V>(array: <span class="kw-2">&</span><span class="lifetime">'de </span>[Value], visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>len = array.len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>deserializer = SeqRefDeserializer::new(array); |
| <span class="kw">let </span>seq = <span class="macro">tri!</span>(visitor.visit_seq(<span class="kw-2">&mut </span>deserializer)); |
| <span class="kw">let </span>remaining = deserializer.iter.len(); |
| <span class="kw">if </span>remaining == <span class="number">0 </span>{ |
| <span class="prelude-val">Ok</span>(seq) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(serde::de::Error::invalid_length( |
| len, |
| <span class="kw-2">&</span><span class="string">"fewer elements in array"</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">fn </span>visit_object_ref<<span class="lifetime">'de</span>, V>(object: <span class="kw-2">&</span><span class="lifetime">'de </span>Map<String, Value>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>len = object.len(); |
| <span class="kw">let </span><span class="kw-2">mut </span>deserializer = MapRefDeserializer::new(object); |
| <span class="kw">let </span>map = <span class="macro">tri!</span>(visitor.visit_map(<span class="kw-2">&mut </span>deserializer)); |
| <span class="kw">let </span>remaining = deserializer.iter.len(); |
| <span class="kw">if </span>remaining == <span class="number">0 </span>{ |
| <span class="prelude-val">Ok</span>(map) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(serde::de::Error::invalid_length( |
| len, |
| <span class="kw-2">&</span><span class="string">"fewer elements in map"</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> serde::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'de </span>Value { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Null => visitor.visit_unit(), |
| Value::Bool(v) => visitor.visit_bool(<span class="kw-2">*</span>v), |
| Value::Number(n) => n.deserialize_any(visitor), |
| Value::String(v) => visitor.visit_borrowed_str(v), |
| Value::Array(v) => visit_array_ref(v, visitor), |
| Value::Object(v) => visit_object_ref(v, visitor), |
| } |
| } |
| |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_i8); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_i16); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_i32); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_i64); |
| <span class="macro">deserialize_number!</span>(deserialize_i128); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_u8); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_u16); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_u32); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_u64); |
| <span class="macro">deserialize_number!</span>(deserialize_u128); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_f32); |
| <span class="macro">deserialize_value_ref_number!</span>(deserialize_f64); |
| |
| <span class="kw">fn </span>deserialize_option<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| Value::Null => visitor.visit_none(), |
| <span class="kw">_ </span>=> visitor.visit_some(<span class="self">self</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span>str, |
| _variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>(variant, value) = <span class="kw">match </span><span class="self">self </span>{ |
| Value::Object(value) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>iter = value.into_iter(); |
| <span class="kw">let </span>(variant, value) = <span class="kw">match </span>iter.next() { |
| <span class="prelude-val">Some</span>(v) => v, |
| <span class="prelude-val">None </span>=> { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(serde::de::Error::invalid_value( |
| Unexpected::Map, |
| <span class="kw-2">&</span><span class="string">"map with a single key"</span>, |
| )); |
| } |
| }; |
| <span class="comment">// enums are encoded in json as maps with a single key:value pair |
| </span><span class="kw">if </span>iter.next().is_some() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(serde::de::Error::invalid_value( |
| Unexpected::Map, |
| <span class="kw-2">&</span><span class="string">"map with a single key"</span>, |
| )); |
| } |
| (variant, <span class="prelude-val">Some</span>(value)) |
| } |
| Value::String(variant) => (variant, <span class="prelude-val">None</span>), |
| other => { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| other.unexpected(), |
| <span class="kw-2">&</span><span class="string">"string or map"</span>, |
| )); |
| } |
| }; |
| |
| visitor.visit_enum(EnumRefDeserializer { variant, value }) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_newtype_struct<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span>{ |
| <span class="kw">if </span>name == <span class="kw">crate</span>::raw::TOKEN { |
| <span class="kw">return </span>visitor.visit_map(<span class="kw">crate</span>::raw::OwnedRawDeserializer { |
| raw_value: <span class="prelude-val">Some</span>(<span class="self">self</span>.to_string()), |
| }); |
| } |
| } |
| |
| <span class="kw">let _ </span>= name; |
| visitor.visit_newtype_struct(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>deserialize_bool<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| Value::Bool(v) => visitor.visit_bool(v), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_char<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_str(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_str<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::String(v) => visitor.visit_borrowed_str(v), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_string<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_str(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_bytes<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::String(v) => visitor.visit_borrowed_str(v), |
| Value::Array(v) => visit_array_ref(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_byte_buf<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_bytes(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_unit<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| Value::Null => visitor.visit_unit(), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_unit_struct<V>(<span class="self">self</span>, _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_unit(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_seq<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Array(v) => visit_array_ref(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_tuple<V>(<span class="self">self</span>, _len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_tuple_struct<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _len: usize, |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_map<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Object(v) => visit_object_ref(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_struct<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Array(v) => visit_array_ref(v, visitor), |
| Value::Object(v) => visit_object_ref(v, visitor), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.invalid_type(<span class="kw-2">&</span>visitor)), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_identifier<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_str(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_ignored_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_unit() |
| } |
| } |
| |
| <span class="kw">struct </span>EnumRefDeserializer<<span class="lifetime">'de</span>> { |
| variant: <span class="kw-2">&</span><span class="lifetime">'de </span>str, |
| value: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'de </span>Value>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>EnumRefDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| <span class="kw">type </span>Variant = VariantRefDeserializer<<span class="lifetime">'de</span>>; |
| |
| <span class="kw">fn </span>variant_seed<V>(<span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><(V::Value, <span class="self">Self</span>::Variant), Error> |
| <span class="kw">where |
| </span>V: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>variant = <span class="self">self</span>.variant.into_deserializer(); |
| <span class="kw">let </span>visitor = VariantRefDeserializer { value: <span class="self">self</span>.value }; |
| seed.deserialize(variant).map(|v| (v, visitor)) |
| } |
| } |
| |
| <span class="kw">struct </span>VariantRefDeserializer<<span class="lifetime">'de</span>> { |
| value: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'de </span>Value>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> VariantAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>VariantRefDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>unit_variant(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(value) => Deserialize::deserialize(value), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(()), |
| } |
| } |
| |
| <span class="kw">fn </span>newtype_variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(value) => seed.deserialize(value), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"newtype variant"</span>, |
| )), |
| } |
| } |
| |
| <span class="kw">fn </span>tuple_variant<V>(<span class="self">self</span>, _len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(Value::Array(v)) => { |
| <span class="kw">if </span>v.is_empty() { |
| visitor.visit_unit() |
| } <span class="kw">else </span>{ |
| visit_array_ref(v, visitor) |
| } |
| } |
| <span class="prelude-val">Some</span>(other) => <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| other.unexpected(), |
| <span class="kw-2">&</span><span class="string">"tuple variant"</span>, |
| )), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"tuple variant"</span>, |
| )), |
| } |
| } |
| |
| <span class="kw">fn </span>struct_variant<V>( |
| <span class="self">self</span>, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| <span class="prelude-val">Some</span>(Value::Object(v)) => visit_object_ref(v, visitor), |
| <span class="prelude-val">Some</span>(other) => <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| other.unexpected(), |
| <span class="kw-2">&</span><span class="string">"struct variant"</span>, |
| )), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"struct variant"</span>, |
| )), |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>SeqRefDeserializer<<span class="lifetime">'de</span>> { |
| iter: slice::Iter<<span class="lifetime">'de</span>, Value>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> SeqRefDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">fn </span>new(slice: <span class="kw-2">&</span><span class="lifetime">'de </span>[Value]) -> <span class="self">Self </span>{ |
| SeqRefDeserializer { iter: slice.iter() } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> SeqAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>SeqRefDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_element_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>(value) => seed.deserialize(value).map(<span class="prelude-val">Some</span>), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="kw">match </span><span class="self">self</span>.iter.size_hint() { |
| (lower, <span class="prelude-val">Some</span>(upper)) <span class="kw">if </span>lower == upper => <span class="prelude-val">Some</span>(upper), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>MapRefDeserializer<<span class="lifetime">'de</span>> { |
| iter: <<span class="kw-2">&</span><span class="lifetime">'de </span>Map<String, Value> <span class="kw">as </span>IntoIterator>::IntoIter, |
| value: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'de </span>Value>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> MapRefDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">fn </span>new(map: <span class="kw-2">&</span><span class="lifetime">'de </span>Map<String, Value>) -> <span class="self">Self </span>{ |
| MapRefDeserializer { |
| iter: map.into_iter(), |
| value: <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapRefDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_key_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>((key, value)) => { |
| <span class="self">self</span>.value = <span class="prelude-val">Some</span>(value); |
| <span class="kw">let </span>key_de = MapKeyDeserializer { |
| key: Cow::Borrowed(<span class="kw-2">&**</span>key), |
| }; |
| seed.deserialize(key_de).map(<span class="prelude-val">Some</span>) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>next_value_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value.take() { |
| <span class="prelude-val">Some</span>(value) => seed.deserialize(value), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(serde::de::Error::custom(<span class="string">"value is missing"</span>)), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="kw">match </span><span class="self">self</span>.iter.size_hint() { |
| (lower, <span class="prelude-val">Some</span>(upper)) <span class="kw">if </span>lower == upper => <span class="prelude-val">Some</span>(upper), |
| <span class="kw">_ </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>MapKeyDeserializer<<span class="lifetime">'de</span>> { |
| key: Cow<<span class="lifetime">'de</span>, str>, |
| } |
| |
| <span class="macro">macro_rules! </span>deserialize_integer_key { |
| (<span class="macro-nonterminal">$method</span>:ident => <span class="macro-nonterminal">$visit</span>:ident) => { |
| <span class="kw">fn </span><span class="macro-nonterminal">$method</span><V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span>(<span class="self">self</span>.key.parse(), <span class="self">self</span>.key) { |
| (<span class="prelude-val">Ok</span>(integer), <span class="kw">_</span>) => visitor.<span class="macro-nonterminal">$visit</span>(integer), |
| (<span class="prelude-val">Err</span>(<span class="kw">_</span>), Cow::Borrowed(s)) => visitor.visit_borrowed_str(s), |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span>(<span class="prelude-val">Err</span>(<span class="kw">_</span>), Cow::Owned(s)) => visitor.visit_string(s), |
| } |
| } |
| }; |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> serde::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>MapKeyDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| BorrowedCowStrDeserializer::new(<span class="self">self</span>.key).deserialize_any(visitor) |
| } |
| |
| <span class="macro">deserialize_integer_key!</span>(deserialize_i8 => visit_i8); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_i16 => visit_i16); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_i32 => visit_i32); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_i64 => visit_i64); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_i128 => visit_i128); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_u8 => visit_u8); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_u16 => visit_u16); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_u32 => visit_u32); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_u64 => visit_u64); |
| <span class="macro">deserialize_integer_key!</span>(deserialize_u128 => visit_u128); |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_option<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="comment">// Map keys cannot be null. |
| </span>visitor.visit_some(<span class="self">self</span>) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deserialize_newtype_struct<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_newtype_struct(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.key |
| .into_deserializer() |
| .deserialize_enum(name, variants, visitor) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool f32 f64 char str string bytes byte_buf unit unit_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">struct </span>KeyClassifier; |
| |
| <span class="kw">enum </span>KeyClass { |
| Map(String), |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span>Number, |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span>RawValue, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> DeserializeSeed<<span class="lifetime">'de</span>> <span class="kw">for </span>KeyClassifier { |
| <span class="kw">type </span>Value = KeyClass; |
| |
| <span class="kw">fn </span>deserialize<D>(<span class="self">self</span>, deserializer: D) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, D::Error> |
| <span class="kw">where |
| </span>D: serde::Deserializer<<span class="lifetime">'de</span>>, |
| { |
| deserializer.deserialize_str(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> Visitor<<span class="lifetime">'de</span>> <span class="kw">for </span>KeyClassifier { |
| <span class="kw">type </span>Value = KeyClass; |
| |
| <span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter.write_str(<span class="string">"a string key"</span>) |
| } |
| |
| <span class="kw">fn </span>visit_str<E>(<span class="self">self</span>, s: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">match </span>s { |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span><span class="kw">crate</span>::number::TOKEN => <span class="prelude-val">Ok</span>(KeyClass::Number), |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span><span class="kw">crate</span>::raw::TOKEN => <span class="prelude-val">Ok</span>(KeyClass::RawValue), |
| <span class="kw">_ </span>=> <span class="prelude-val">Ok</span>(KeyClass::Map(s.to_owned())), |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">fn </span>visit_string<E>(<span class="self">self</span>, s: String) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">match </span>s.as_str() { |
| <span class="attribute">#[cfg(feature = <span class="string">"arbitrary_precision"</span>)] |
| </span><span class="kw">crate</span>::number::TOKEN => <span class="prelude-val">Ok</span>(KeyClass::Number), |
| <span class="attribute">#[cfg(feature = <span class="string">"raw_value"</span>)] |
| </span><span class="kw">crate</span>::raw::TOKEN => <span class="prelude-val">Ok</span>(KeyClass::RawValue), |
| <span class="kw">_ </span>=> <span class="prelude-val">Ok</span>(KeyClass::Map(s)), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Value { |
| <span class="attribute">#[cold] |
| </span><span class="kw">fn </span>invalid_type<E>(<span class="kw-2">&</span><span class="self">self</span>, exp: <span class="kw-2">&</span><span class="kw">dyn </span>Expected) -> E |
| <span class="kw">where |
| </span>E: serde::de::Error, |
| { |
| serde::de::Error::invalid_type(<span class="self">self</span>.unexpected(), exp) |
| } |
| |
| <span class="attribute">#[cold] |
| </span><span class="kw">fn </span>unexpected(<span class="kw-2">&</span><span class="self">self</span>) -> Unexpected { |
| <span class="kw">match </span><span class="self">self </span>{ |
| Value::Null => Unexpected::Unit, |
| Value::Bool(b) => Unexpected::Bool(<span class="kw-2">*</span>b), |
| Value::Number(n) => n.unexpected(), |
| Value::String(s) => Unexpected::Str(s), |
| Value::Array(<span class="kw">_</span>) => Unexpected::Seq, |
| Value::Object(<span class="kw">_</span>) => Unexpected::Map, |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>BorrowedCowStrDeserializer<<span class="lifetime">'de</span>> { |
| value: Cow<<span class="lifetime">'de</span>, str>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> BorrowedCowStrDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">fn </span>new(value: Cow<<span class="lifetime">'de</span>, str>) -> <span class="self">Self </span>{ |
| BorrowedCowStrDeserializer { value } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>BorrowedCowStrDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| Cow::Borrowed(string) => visitor.visit_borrowed_str(string), |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span>Cow::Owned(string) => visitor.visit_string(string), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span>str, |
| _variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>BorrowedCowStrDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| <span class="kw">type </span>Variant = UnitOnly; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>value = seed.deserialize(<span class="self">self</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>((value, UnitOnly)) |
| } |
| } |
| |
| <span class="kw">struct </span>UnitOnly; |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::VariantAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>UnitOnly { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>unit_variant(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>newtype_variant_seed<T>(<span class="self">self</span>, _seed: T) -> <span class="prelude-ty">Result</span><T::Value, Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="prelude-val">Err</span>(de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"newtype variant"</span>, |
| )) |
| } |
| |
| <span class="kw">fn </span>tuple_variant<V>(<span class="self">self</span>, _len: usize, _visitor: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="prelude-val">Err</span>(de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"tuple variant"</span>, |
| )) |
| } |
| |
| <span class="kw">fn </span>struct_variant<V>( |
| <span class="self">self</span>, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| _visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="prelude-val">Err</span>(de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"struct variant"</span>, |
| )) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="serde_json" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |