| <!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/toml-0.5.11/src/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="../../toml/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="../../toml/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="2246">2246</span> |
| </pre><pre class="rust"><code><span class="doccomment">//! Deserializing TOML into Rust structures. |
| //! |
| //! This module contains all the Serde support for deserializing TOML documents |
| //! into Rust structures. Note that some top-level functions here are also |
| //! provided at the top of the crate. |
| |
| </span><span class="kw">use </span>std::borrow::Cow; |
| <span class="kw">use </span>std::collections::HashMap; |
| <span class="kw">use </span>std::error; |
| <span class="kw">use </span>std::f64; |
| <span class="kw">use </span>std::fmt; |
| <span class="kw">use </span>std::iter; |
| <span class="kw">use </span>std::marker::PhantomData; |
| <span class="kw">use </span>std::str; |
| <span class="kw">use </span>std::vec; |
| |
| <span class="kw">use </span>serde::de; |
| <span class="kw">use </span>serde::de::value::BorrowedStrDeserializer; |
| <span class="kw">use </span>serde::de::IntoDeserializer; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::datetime; |
| <span class="kw">use </span><span class="kw">crate</span>::spanned; |
| <span class="kw">use </span><span class="kw">crate</span>::tokens::{Error <span class="kw">as </span>TokenError, Span, Token, Tokenizer}; |
| |
| <span class="doccomment">/// Type Alias for a TOML Table pair |
| </span><span class="kw">type </span>TablePair<<span class="lifetime">'a</span>> = ((Span, Cow<<span class="lifetime">'a</span>, str>), Value<<span class="lifetime">'a</span>>); |
| |
| <span class="doccomment">/// Deserializes a byte slice into a type. |
| /// |
| /// This function will attempt to interpret `bytes` as UTF-8 data and then |
| /// deserialize `T` from the TOML document provided. |
| </span><span class="kw">pub fn </span>from_slice<<span class="lifetime">'de</span>, T>(bytes: <span class="kw-2">&</span><span class="lifetime">'de </span>[u8]) -> <span class="prelude-ty">Result</span><T, Error> |
| <span class="kw">where |
| </span>T: de::Deserialize<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span>str::from_utf8(bytes) { |
| <span class="prelude-val">Ok</span>(s) => from_str(s), |
| <span class="prelude-val">Err</span>(e) => <span class="prelude-val">Err</span>(Error::custom(<span class="prelude-val">None</span>, e.to_string())), |
| } |
| } |
| |
| <span class="doccomment">/// Deserializes a string into a type. |
| /// |
| /// This function will attempt to interpret `s` as a TOML document and |
| /// deserialize `T` from the document. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use serde_derive::Deserialize; |
| /// |
| /// #[derive(Deserialize)] |
| /// struct Config { |
| /// title: String, |
| /// owner: Owner, |
| /// } |
| /// |
| /// #[derive(Deserialize)] |
| /// struct Owner { |
| /// name: String, |
| /// } |
| /// |
| /// let config: Config = toml::from_str(r#" |
| /// title = 'TOML Example' |
| /// |
| /// [owner] |
| /// name = 'Lisa' |
| /// "#).unwrap(); |
| /// |
| /// assert_eq!(config.title, "TOML Example"); |
| /// assert_eq!(config.owner.name, "Lisa"); |
| /// ``` |
| </span><span class="kw">pub fn </span>from_str<<span class="lifetime">'de</span>, T>(s: <span class="kw-2">&</span><span class="lifetime">'de </span>str) -> <span class="prelude-ty">Result</span><T, Error> |
| <span class="kw">where |
| </span>T: de::Deserialize<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>d = Deserializer::new(s); |
| <span class="kw">let </span>ret = T::deserialize(<span class="kw-2">&mut </span>d)<span class="question-mark">?</span>; |
| d.end()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(ret) |
| } |
| |
| <span class="doccomment">/// Errors that can occur when deserializing a type. |
| </span><span class="attribute">#[derive(Debug, PartialEq, Eq, Clone)] |
| </span><span class="kw">pub struct </span>Error { |
| inner: Box<ErrorInner>, |
| } |
| |
| <span class="attribute">#[derive(Debug, PartialEq, Eq, Clone)] |
| </span><span class="kw">struct </span>ErrorInner { |
| kind: ErrorKind, |
| line: <span class="prelude-ty">Option</span><usize>, |
| col: usize, |
| at: <span class="prelude-ty">Option</span><usize>, |
| message: String, |
| key: Vec<String>, |
| } |
| |
| <span class="doccomment">/// Errors that can occur when deserializing a type. |
| </span><span class="attribute">#[derive(Debug, PartialEq, Eq, Clone)] |
| #[non_exhaustive] |
| </span><span class="kw">enum </span>ErrorKind { |
| <span class="doccomment">/// EOF was reached when looking for a value |
| </span>UnexpectedEof, |
| |
| <span class="doccomment">/// An invalid character not allowed in a string was found |
| </span>InvalidCharInString(char), |
| |
| <span class="doccomment">/// An invalid character was found as an escape |
| </span>InvalidEscape(char), |
| |
| <span class="doccomment">/// An invalid character was found in a hex escape |
| </span>InvalidHexEscape(char), |
| |
| <span class="doccomment">/// An invalid escape value was specified in a hex escape in a string. |
| /// |
| /// Valid values are in the plane of unicode codepoints. |
| </span>InvalidEscapeValue(u32), |
| |
| <span class="doccomment">/// A newline in a string was encountered when one was not allowed. |
| </span>NewlineInString, |
| |
| <span class="doccomment">/// An unexpected character was encountered, typically when looking for a |
| /// value. |
| </span>Unexpected(char), |
| |
| <span class="doccomment">/// An unterminated string was found where EOF was found before the ending |
| /// EOF mark. |
| </span>UnterminatedString, |
| |
| <span class="doccomment">/// A newline was found in a table key. |
| </span>NewlineInTableKey, |
| |
| <span class="doccomment">/// A number failed to parse |
| </span>NumberInvalid, |
| |
| <span class="doccomment">/// A date or datetime was invalid |
| </span>DateInvalid, |
| |
| <span class="doccomment">/// Wanted one sort of token, but found another. |
| </span>Wanted { |
| <span class="doccomment">/// Expected token type |
| </span>expected: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| <span class="doccomment">/// Actually found token type |
| </span>found: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| }, |
| |
| <span class="doccomment">/// A duplicate table definition was found. |
| </span>DuplicateTable(String), |
| |
| <span class="doccomment">/// A previously defined table was redefined as an array. |
| </span>RedefineAsArray, |
| |
| <span class="doccomment">/// An empty table key was found. |
| </span>EmptyTableKey, |
| |
| <span class="doccomment">/// Multiline strings are not allowed for key |
| </span>MultilineStringKey, |
| |
| <span class="doccomment">/// A custom error which could be generated when deserializing a particular |
| /// type. |
| </span>Custom, |
| |
| <span class="doccomment">/// A tuple with a certain number of elements was expected but something |
| /// else was found. |
| </span>ExpectedTuple(usize), |
| |
| <span class="doccomment">/// Expected table keys to be in increasing tuple index order, but something |
| /// else was found. |
| </span>ExpectedTupleIndex { |
| <span class="doccomment">/// Expected index. |
| </span>expected: usize, |
| <span class="doccomment">/// Key that was specified. |
| </span>found: String, |
| }, |
| |
| <span class="doccomment">/// An empty table was expected but entries were found |
| </span>ExpectedEmptyTable, |
| |
| <span class="doccomment">/// Dotted key attempted to extend something that is not a table. |
| </span>DottedKeyInvalidType, |
| |
| <span class="doccomment">/// An unexpected key was encountered. |
| /// |
| /// Used when deserializing a struct with a limited set of fields. |
| </span>UnexpectedKeys { |
| <span class="doccomment">/// The unexpected keys. |
| </span>keys: Vec<String>, |
| <span class="doccomment">/// Keys that may be specified. |
| </span>available: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| }, |
| |
| <span class="doccomment">/// Unquoted string was found when quoted one was expected |
| </span>UnquotedString, |
| } |
| |
| <span class="doccomment">/// Deserialization implementation for TOML. |
| </span><span class="kw">pub struct </span>Deserializer<<span class="lifetime">'a</span>> { |
| require_newline_after_table: bool, |
| allow_duplciate_after_longer_table: bool, |
| input: <span class="kw-2">&</span><span class="lifetime">'a </span>str, |
| tokens: Tokenizer<<span class="lifetime">'a</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'b </span><span class="kw-2">mut </span>Deserializer<<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">let </span><span class="kw-2">mut </span>tables = <span class="self">self</span>.tables()<span class="question-mark">?</span>; |
| <span class="kw">let </span>table_indices = build_table_indices(<span class="kw-2">&</span>tables); |
| <span class="kw">let </span>table_pindices = build_table_pindices(<span class="kw-2">&</span>tables); |
| |
| <span class="kw">let </span>res = visitor.visit_map(MapVisitor { |
| values: Vec::new().into_iter().peekable(), |
| next_value: <span class="prelude-val">None</span>, |
| depth: <span class="number">0</span>, |
| cur: <span class="number">0</span>, |
| cur_parent: <span class="number">0</span>, |
| max: tables.len(), |
| table_indices: <span class="kw-2">&</span>table_indices, |
| table_pindices: <span class="kw-2">&</span>table_pindices, |
| tables: <span class="kw-2">&mut </span>tables, |
| array: <span class="bool-val">false</span>, |
| de: <span class="self">self</span>, |
| }); |
| res.map_err(|<span class="kw-2">mut </span>err| { |
| <span class="comment">// Errors originating from this library (toml), have an offset |
| // attached to them already. Other errors, like those originating |
| // from serde (like "missing field") or from a custom deserializer, |
| // do not have offsets on them. Here, we do a best guess at their |
| // location, by attributing them to the "current table" (the last |
| // item in `tables`). |
| </span>err.fix_offset(|| tables.last().map(|table| table.at)); |
| err.fix_linecol(|at| <span class="self">self</span>.to_linecol(at)); |
| err |
| }) |
| } |
| |
| <span class="comment">// Called when the type to deserialize is an enum, as opposed to a field in the type. |
| </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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>(value, name) = <span class="self">self</span>.string_or_table()<span class="question-mark">?</span>; |
| <span class="kw">match </span>value.e { |
| E::String(val) => visitor.visit_enum(val.into_deserializer()), |
| E::InlineTable(values) => { |
| <span class="kw">if </span>values.len() != <span class="number">1 </span>{ |
| <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(value.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"exactly 1 element"</span>, |
| found: <span class="kw">if </span>values.is_empty() { |
| <span class="string">"zero elements" |
| </span>} <span class="kw">else </span>{ |
| <span class="string">"more than 1 element" |
| </span>}, |
| }, |
| )) |
| } <span class="kw">else </span>{ |
| visitor.visit_enum(InlineTableDeserializer { |
| values: values.into_iter(), |
| next_value: <span class="prelude-val">None</span>, |
| }) |
| } |
| } |
| E::DottedTable(<span class="kw">_</span>) => visitor.visit_enum(DottedTableDeserializer { |
| name: name.expect(<span class="string">"Expected table header to be passed."</span>), |
| value, |
| }), |
| e => <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(value.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"string or table"</span>, |
| found: e.type_name(), |
| }, |
| )), |
| } |
| } |
| |
| <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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span>name == spanned::NAME && fields == [spanned::START, spanned::END, spanned::VALUE] { |
| <span class="kw">let </span>start = <span class="number">0</span>; |
| <span class="kw">let </span>end = <span class="self">self</span>.input.len(); |
| |
| <span class="kw">let </span>res = visitor.visit_map(SpannedDeserializer { |
| phantom_data: PhantomData, |
| start: <span class="prelude-val">Some</span>(start), |
| value: <span class="prelude-val">Some</span>(<span class="self">self</span>), |
| end: <span class="prelude-val">Some</span>(end), |
| }); |
| <span class="kw">return </span>res; |
| } |
| |
| <span class="self">self</span>.deserialize_any(visitor) |
| } |
| |
| <span class="macro">serde::forward_to_deserialize_any! </span>{ |
| bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq |
| bytes byte_buf map unit newtype_struct |
| ignored_any unit_struct tuple_struct tuple option identifier |
| } |
| } |
| |
| <span class="comment">// Builds a datastructure that allows for efficient sublinear lookups. |
| // The returned HashMap contains a mapping from table header (like [a.b.c]) |
| // to list of tables with that precise name. The tables are being identified |
| // by their index in the passed slice. We use a list as the implementation |
| // uses this data structure for arrays as well as tables, |
| // so if any top level [[name]] array contains multiple entries, |
| // there are multiple entries in the list. |
| // The lookup is performed in the `SeqAccess` implementation of `MapVisitor`. |
| // The lists are ordered, which we exploit in the search code by using |
| // bisection. |
| </span><span class="kw">fn </span>build_table_indices<<span class="lifetime">'de</span>>(tables: <span class="kw-2">&</span>[Table<<span class="lifetime">'de</span>>]) -> HashMap<Vec<Cow<<span class="lifetime">'de</span>, str>>, Vec<usize>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>res = HashMap::new(); |
| <span class="kw">for </span>(i, table) <span class="kw">in </span>tables.iter().enumerate() { |
| <span class="kw">let </span>header = table.header.iter().map(|v| v.<span class="number">1</span>.clone()).collect::<Vec<<span class="kw">_</span>>>(); |
| res.entry(header).or_insert_with(Vec::new).push(i); |
| } |
| res |
| } |
| |
| <span class="comment">// Builds a datastructure that allows for efficient sublinear lookups. |
| // The returned HashMap contains a mapping from table header (like [a.b.c]) |
| // to list of tables whose name at least starts with the specified |
| // name. So searching for [a.b] would give both [a.b.c.d] as well as [a.b.e]. |
| // The tables are being identified by their index in the passed slice. |
| // |
| // A list is used for two reasons: First, the implementation also |
| // stores arrays in the same data structure and any top level array |
| // of size 2 or greater creates multiple entries in the list with the |
| // same shared name. Second, there can be multiple tables sharing |
| // the same prefix. |
| // |
| // The lookup is performed in the `MapAccess` implementation of `MapVisitor`. |
| // The lists are ordered, which we exploit in the search code by using |
| // bisection. |
| </span><span class="kw">fn </span>build_table_pindices<<span class="lifetime">'de</span>>(tables: <span class="kw-2">&</span>[Table<<span class="lifetime">'de</span>>]) -> HashMap<Vec<Cow<<span class="lifetime">'de</span>, str>>, Vec<usize>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>res = HashMap::new(); |
| <span class="kw">for </span>(i, table) <span class="kw">in </span>tables.iter().enumerate() { |
| <span class="kw">let </span>header = table.header.iter().map(|v| v.<span class="number">1</span>.clone()).collect::<Vec<<span class="kw">_</span>>>(); |
| <span class="kw">for </span>len <span class="kw">in </span><span class="number">0</span>..=header.len() { |
| res.entry(header[..len].to_owned()) |
| .or_insert_with(Vec::new) |
| .push(i); |
| } |
| } |
| res |
| } |
| |
| <span class="kw">fn </span>headers_equal<<span class="lifetime">'a</span>, <span class="lifetime">'b</span>>(hdr_a: <span class="kw-2">&</span>[(Span, Cow<<span class="lifetime">'a</span>, str>)], hdr_b: <span class="kw-2">&</span>[(Span, Cow<<span class="lifetime">'b</span>, str>)]) -> bool { |
| <span class="kw">if </span>hdr_a.len() != hdr_b.len() { |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| hdr_a.iter().zip(hdr_b.iter()).all(|(h1, h2)| h1.<span class="number">1 </span>== h2.<span class="number">1</span>) |
| } |
| |
| <span class="kw">struct </span>Table<<span class="lifetime">'a</span>> { |
| at: usize, |
| header: Vec<(Span, Cow<<span class="lifetime">'a</span>, str>)>, |
| values: <span class="prelude-ty">Option</span><Vec<TablePair<<span class="lifetime">'a</span>>>>, |
| array: bool, |
| } |
| |
| <span class="kw">struct </span>MapVisitor<<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> { |
| values: iter::Peekable<vec::IntoIter<TablePair<<span class="lifetime">'de</span>>>>, |
| next_value: <span class="prelude-ty">Option</span><TablePair<<span class="lifetime">'de</span>>>, |
| depth: usize, |
| cur: usize, |
| cur_parent: usize, |
| max: usize, |
| table_indices: <span class="kw-2">&</span><span class="lifetime">'b </span>HashMap<Vec<Cow<<span class="lifetime">'de</span>, str>>, Vec<usize>>, |
| table_pindices: <span class="kw-2">&</span><span class="lifetime">'b </span>HashMap<Vec<Cow<<span class="lifetime">'de</span>, str>>, Vec<usize>>, |
| tables: <span class="kw-2">&</span><span class="lifetime">'b </span><span class="kw-2">mut </span>[Table<<span class="lifetime">'de</span>>], |
| array: bool, |
| de: <span class="kw-2">&</span><span class="lifetime">'b </span><span class="kw-2">mut </span>Deserializer<<span class="lifetime">'de</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> de::MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapVisitor<<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_key_seed<K>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: K) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><K::Value>, Error> |
| <span class="kw">where |
| </span>K: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span><span class="self">self</span>.cur_parent == <span class="self">self</span>.max || <span class="self">self</span>.cur == <span class="self">self</span>.max { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| |
| <span class="kw">loop </span>{ |
| <span class="macro">assert!</span>(<span class="self">self</span>.next_value.is_none()); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>((key, value)) = <span class="self">self</span>.values.next() { |
| <span class="kw">let </span>ret = seed.deserialize(StrDeserializer::spanned(key.clone()))<span class="question-mark">?</span>; |
| <span class="self">self</span>.next_value = <span class="prelude-val">Some</span>((key, value)); |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(ret)); |
| } |
| |
| <span class="kw">let </span>next_table = { |
| <span class="kw">let </span>prefix_stripped = <span class="self">self</span>.tables[<span class="self">self</span>.cur_parent].header[..<span class="self">self</span>.depth] |
| .iter() |
| .map(|v| v.<span class="number">1</span>.clone()) |
| .collect::<Vec<<span class="kw">_</span>>>(); |
| <span class="self">self</span>.table_pindices |
| .get(<span class="kw-2">&</span>prefix_stripped) |
| .and_then(|entries| { |
| <span class="kw">let </span>start = entries.binary_search(<span class="kw-2">&</span><span class="self">self</span>.cur).unwrap_or_else(|v| v); |
| <span class="kw">if </span>start == entries.len() || entries[start] < <span class="self">self</span>.cur { |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| entries[start..] |
| .iter() |
| .filter_map(|i| <span class="kw">if </span><span class="kw-2">*</span>i < <span class="self">self</span>.max { <span class="prelude-val">Some</span>(<span class="kw-2">*</span>i) } <span class="kw">else </span>{ <span class="prelude-val">None </span>}) |
| .map(|i| (i, <span class="kw-2">&</span><span class="self">self</span>.tables[i])) |
| .find(|(<span class="kw">_</span>, table)| table.values.is_some()) |
| .map(|p| p.<span class="number">0</span>) |
| }) |
| }; |
| |
| <span class="kw">let </span>pos = <span class="kw">match </span>next_table { |
| <span class="prelude-val">Some</span>(pos) => pos, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| }; |
| <span class="self">self</span>.cur = pos; |
| |
| <span class="comment">// Test to see if we're duplicating our parent's table, and if so |
| // then this is an error in the toml format |
| </span><span class="kw">if </span><span class="self">self</span>.cur_parent != pos { |
| <span class="kw">if </span>headers_equal( |
| <span class="kw-2">&</span><span class="self">self</span>.tables[<span class="self">self</span>.cur_parent].header, |
| <span class="kw-2">&</span><span class="self">self</span>.tables[pos].header, |
| ) { |
| <span class="kw">let </span>at = <span class="self">self</span>.tables[pos].at; |
| <span class="kw">let </span>name = <span class="self">self</span>.tables[pos] |
| .header |
| .iter() |
| .map(|k| k.<span class="number">1</span>.to_owned()) |
| .collect::<Vec<<span class="kw">_</span>>>() |
| .join(<span class="string">"."</span>); |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.de.error(at, ErrorKind::DuplicateTable(name))); |
| } |
| |
| <span class="comment">// If we're here we know we should share the same prefix, and if |
| // the longer table was defined first then we want to narrow |
| // down our parent's length if possible to ensure that we catch |
| // duplicate tables defined afterwards. |
| </span><span class="kw">if </span>!<span class="self">self</span>.de.allow_duplciate_after_longer_table { |
| <span class="kw">let </span>parent_len = <span class="self">self</span>.tables[<span class="self">self</span>.cur_parent].header.len(); |
| <span class="kw">let </span>cur_len = <span class="self">self</span>.tables[pos].header.len(); |
| <span class="kw">if </span>cur_len < parent_len { |
| <span class="self">self</span>.cur_parent = pos; |
| } |
| } |
| } |
| |
| <span class="kw">let </span>table = <span class="kw-2">&mut </span><span class="self">self</span>.tables[pos]; |
| |
| <span class="comment">// If we're not yet at the appropriate depth for this table then we |
| // just next the next portion of its header and then continue |
| // decoding. |
| </span><span class="kw">if </span><span class="self">self</span>.depth != table.header.len() { |
| <span class="kw">let </span>key = <span class="kw-2">&</span>table.header[<span class="self">self</span>.depth]; |
| <span class="kw">let </span>key = seed.deserialize(StrDeserializer::spanned(key.clone()))<span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(key)); |
| } |
| |
| <span class="comment">// Rule out cases like: |
| // |
| // [[foo.bar]] |
| // [[foo]] |
| </span><span class="kw">if </span>table.array { |
| <span class="kw">let </span>kind = ErrorKind::RedefineAsArray; |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.de.error(table.at, kind)); |
| } |
| |
| <span class="self">self</span>.values = table |
| .values |
| .take() |
| .expect(<span class="string">"Unable to read table values"</span>) |
| .into_iter() |
| .peekable(); |
| } |
| } |
| |
| <span class="kw">fn </span>next_value_seed<V>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>((k, v)) = <span class="self">self</span>.next_value.take() { |
| <span class="kw">match </span>seed.deserialize(ValueDeserializer::new(v)) { |
| <span class="prelude-val">Ok</span>(v) => <span class="kw">return </span><span class="prelude-val">Ok</span>(v), |
| <span class="prelude-val">Err</span>(<span class="kw-2">mut </span>e) => { |
| e.add_key_context(<span class="kw-2">&</span>k.<span class="number">1</span>); |
| <span class="kw">return </span><span class="prelude-val">Err</span>(e); |
| } |
| } |
| } |
| |
| <span class="kw">let </span>array = |
| <span class="self">self</span>.tables[<span class="self">self</span>.cur].array && <span class="self">self</span>.depth == <span class="self">self</span>.tables[<span class="self">self</span>.cur].header.len() - <span class="number">1</span>; |
| <span class="self">self</span>.cur += <span class="number">1</span>; |
| <span class="kw">let </span>res = seed.deserialize(MapVisitor { |
| values: Vec::new().into_iter().peekable(), |
| next_value: <span class="prelude-val">None</span>, |
| depth: <span class="self">self</span>.depth + <span class="kw">if </span>array { <span class="number">0 </span>} <span class="kw">else </span>{ <span class="number">1 </span>}, |
| cur_parent: <span class="self">self</span>.cur - <span class="number">1</span>, |
| cur: <span class="number">0</span>, |
| max: <span class="self">self</span>.max, |
| array, |
| table_indices: <span class="self">self</span>.table_indices, |
| table_pindices: <span class="self">self</span>.table_pindices, |
| tables: <span class="kw-2">&mut *</span><span class="self">self</span>.tables, |
| de: <span class="kw-2">&mut *</span><span class="self">self</span>.de, |
| }); |
| res.map_err(|<span class="kw-2">mut </span>e| { |
| e.add_key_context(<span class="kw-2">&</span><span class="self">self</span>.tables[<span class="self">self</span>.cur - <span class="number">1</span>].header[<span class="self">self</span>.depth].<span class="number">1</span>); |
| e |
| }) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> de::SeqAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapVisitor<<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_element_seed<K>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: K) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><K::Value>, Error> |
| <span class="kw">where |
| </span>K: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="macro">assert!</span>(<span class="self">self</span>.next_value.is_none()); |
| <span class="macro">assert!</span>(<span class="self">self</span>.values.next().is_none()); |
| |
| <span class="kw">if </span><span class="self">self</span>.cur_parent == <span class="self">self</span>.max { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| |
| <span class="kw">let </span>header_stripped = <span class="self">self</span>.tables[<span class="self">self</span>.cur_parent] |
| .header |
| .iter() |
| .map(|v| v.<span class="number">1</span>.clone()) |
| .collect::<Vec<<span class="kw">_</span>>>(); |
| <span class="kw">let </span>start_idx = <span class="self">self</span>.cur_parent + <span class="number">1</span>; |
| <span class="kw">let </span>next = <span class="self">self |
| </span>.table_indices |
| .get(<span class="kw-2">&</span>header_stripped) |
| .and_then(|entries| { |
| <span class="kw">let </span>start = entries.binary_search(<span class="kw-2">&</span>start_idx).unwrap_or_else(|v| v); |
| <span class="kw">if </span>start == entries.len() || entries[start] < start_idx { |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| entries[start..] |
| .iter() |
| .filter_map(|i| <span class="kw">if </span><span class="kw-2">*</span>i < <span class="self">self</span>.max { <span class="prelude-val">Some</span>(<span class="kw-2">*</span>i) } <span class="kw">else </span>{ <span class="prelude-val">None </span>}) |
| .map(|i| (i, <span class="kw-2">&</span><span class="self">self</span>.tables[i])) |
| .find(|(<span class="kw">_</span>, table)| table.array) |
| .map(|p| p.<span class="number">0</span>) |
| }) |
| .unwrap_or(<span class="self">self</span>.max); |
| |
| <span class="kw">let </span>ret = seed.deserialize(MapVisitor { |
| values: <span class="self">self</span>.tables[<span class="self">self</span>.cur_parent] |
| .values |
| .take() |
| .expect(<span class="string">"Unable to read table values"</span>) |
| .into_iter() |
| .peekable(), |
| next_value: <span class="prelude-val">None</span>, |
| depth: <span class="self">self</span>.depth + <span class="number">1</span>, |
| cur_parent: <span class="self">self</span>.cur_parent, |
| max: next, |
| cur: <span class="number">0</span>, |
| array: <span class="bool-val">false</span>, |
| table_indices: <span class="self">self</span>.table_indices, |
| table_pindices: <span class="self">self</span>.table_pindices, |
| tables: <span class="self">self</span>.tables, |
| de: <span class="self">self</span>.de, |
| })<span class="question-mark">?</span>; |
| <span class="self">self</span>.cur_parent = next; |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(ret)) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>MapVisitor<<span class="lifetime">'de</span>, <span class="lifetime">'b</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">if </span><span class="self">self</span>.array { |
| visitor.visit_seq(<span class="self">self</span>) |
| } <span class="kw">else </span>{ |
| visitor.visit_map(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="comment">// `None` is interpreted as a missing field so be sure to implement `Some` |
| // as a present field. |
| </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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_some(<span class="self">self</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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_newtype_struct(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>deserialize_struct<V>( |
| <span class="kw-2">mut </span><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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span>name == spanned::NAME |
| && fields == [spanned::START, spanned::END, spanned::VALUE] |
| && !(<span class="self">self</span>.array && <span class="self">self</span>.values.peek().is_some()) |
| { |
| <span class="comment">// TODO we can't actually emit spans here for the *entire* table/array |
| // due to the format that toml uses. Setting the start and end to 0 is |
| // *detectable* (and no reasonable span would look like that), |
| // it would be better to expose this in the API via proper |
| // ADTs like Option<T>. |
| </span><span class="kw">let </span>start = <span class="number">0</span>; |
| <span class="kw">let </span>end = <span class="number">0</span>; |
| |
| <span class="kw">let </span>res = visitor.visit_map(SpannedDeserializer { |
| phantom_data: PhantomData, |
| start: <span class="prelude-val">Some</span>(start), |
| value: <span class="prelude-val">Some</span>(<span class="self">self</span>), |
| end: <span class="prelude-val">Some</span>(end), |
| }); |
| <span class="kw">return </span>res; |
| } |
| |
| <span class="self">self</span>.deserialize_any(visitor) |
| } |
| |
| <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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span><span class="self">self</span>.tables.len() != <span class="number">1 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::custom( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.cur), |
| <span class="string">"enum table must contain exactly one table"</span>.into(), |
| )); |
| } |
| <span class="kw">let </span>table = <span class="kw-2">&mut </span><span class="self">self</span>.tables[<span class="number">0</span>]; |
| <span class="kw">let </span>values = table.values.take().expect(<span class="string">"table has no values?"</span>); |
| <span class="kw">if </span>table.header.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.de.error(<span class="self">self</span>.cur, ErrorKind::EmptyTableKey)); |
| } |
| <span class="kw">let </span>name = table.header[table.header.len() - <span class="number">1</span>].<span class="number">1</span>.to_owned(); |
| visitor.visit_enum(DottedTableDeserializer { |
| name, |
| value: Value { |
| e: E::DottedTable(values), |
| start: <span class="number">0</span>, |
| end: <span class="number">0</span>, |
| }, |
| }) |
| } |
| |
| <span class="macro">serde::forward_to_deserialize_any! </span>{ |
| bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq |
| bytes byte_buf map unit identifier |
| ignored_any unit_struct tuple_struct tuple |
| } |
| } |
| |
| <span class="kw">struct </span>StrDeserializer<<span class="lifetime">'a</span>> { |
| span: <span class="prelude-ty">Option</span><Span>, |
| key: Cow<<span class="lifetime">'a</span>, str>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> StrDeserializer<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>spanned(inner: (Span, Cow<<span class="lifetime">'a</span>, str>)) -> StrDeserializer<<span class="lifetime">'a</span>> { |
| StrDeserializer { |
| span: <span class="prelude-val">Some</span>(inner.<span class="number">0</span>), |
| key: inner.<span class="number">1</span>, |
| } |
| } |
| <span class="kw">fn </span>new(key: Cow<<span class="lifetime">'a</span>, str>) -> StrDeserializer<<span class="lifetime">'a</span>> { |
| StrDeserializer { span: <span class="prelude-val">None</span>, key } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> de::IntoDeserializer<<span class="lifetime">'a</span>, Error> <span class="kw">for </span>StrDeserializer<<span class="lifetime">'a</span>> { |
| <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">impl</span><<span class="lifetime">'de</span>> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>StrDeserializer<<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>.key { |
| Cow::Borrowed(s) => visitor.visit_borrowed_str(s), |
| Cow::Owned(s) => visitor.visit_string(s), |
| } |
| } |
| |
| <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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span>name == spanned::NAME && fields == [spanned::START, spanned::END, spanned::VALUE] { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(span) = <span class="self">self</span>.span { |
| <span class="kw">return </span>visitor.visit_map(SpannedDeserializer { |
| phantom_data: PhantomData, |
| start: <span class="prelude-val">Some</span>(span.start), |
| value: <span class="prelude-val">Some</span>(StrDeserializer::new(<span class="self">self</span>.key)), |
| end: <span class="prelude-val">Some</span>(span.end), |
| }); |
| } |
| } |
| <span class="self">self</span>.deserialize_any(visitor) |
| } |
| |
| <span class="macro">serde::forward_to_deserialize_any! </span>{ |
| bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq |
| bytes byte_buf map option unit newtype_struct |
| ignored_any unit_struct tuple_struct tuple <span class="kw">enum </span>identifier |
| } |
| } |
| |
| <span class="kw">struct </span>ValueDeserializer<<span class="lifetime">'a</span>> { |
| value: Value<<span class="lifetime">'a</span>>, |
| validate_struct_keys: bool, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> ValueDeserializer<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>new(value: Value<<span class="lifetime">'a</span>>) -> ValueDeserializer<<span class="lifetime">'a</span>> { |
| ValueDeserializer { |
| value, |
| validate_struct_keys: <span class="bool-val">false</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>with_struct_key_validation(<span class="kw-2">mut </span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.validate_struct_keys = <span class="bool-val">true</span>; |
| <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>ValueDeserializer<<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">let </span>start = <span class="self">self</span>.value.start; |
| <span class="kw">let </span>res = <span class="kw">match </span><span class="self">self</span>.value.e { |
| E::Integer(i) => visitor.visit_i64(i), |
| E::Boolean(b) => visitor.visit_bool(b), |
| E::Float(f) => visitor.visit_f64(f), |
| E::String(Cow::Borrowed(s)) => visitor.visit_borrowed_str(s), |
| E::String(Cow::Owned(s)) => visitor.visit_string(s), |
| E::Datetime(s) => visitor.visit_map(DatetimeDeserializer { |
| date: s, |
| visited: <span class="bool-val">false</span>, |
| }), |
| E::Array(values) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>s = de::value::SeqDeserializer::new(values.into_iter()); |
| <span class="kw">let </span>ret = visitor.visit_seq(<span class="kw-2">&mut </span>s)<span class="question-mark">?</span>; |
| s.end()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(ret) |
| } |
| E::InlineTable(values) | E::DottedTable(values) => { |
| visitor.visit_map(InlineTableDeserializer { |
| values: values.into_iter(), |
| next_value: <span class="prelude-val">None</span>, |
| }) |
| } |
| }; |
| res.map_err(|<span class="kw-2">mut </span>err| { |
| <span class="comment">// Attribute the error to whatever value returned the error. |
| </span>err.fix_offset(|| <span class="prelude-val">Some</span>(start)); |
| err |
| }) |
| } |
| |
| <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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span>name == datetime::NAME && fields == [datetime::FIELD] { |
| <span class="kw">if let </span>E::Datetime(s) = <span class="self">self</span>.value.e { |
| <span class="kw">return </span>visitor.visit_map(DatetimeDeserializer { |
| date: s, |
| visited: <span class="bool-val">false</span>, |
| }); |
| } |
| } |
| |
| <span class="kw">if </span><span class="self">self</span>.validate_struct_keys { |
| <span class="kw">match </span><span class="self">self</span>.value.e { |
| E::InlineTable(<span class="kw-2">ref </span>values) | E::DottedTable(<span class="kw-2">ref </span>values) => { |
| <span class="kw">let </span>extra_fields = values |
| .iter() |
| .filter_map(|key_value| { |
| <span class="kw">let </span>(<span class="kw-2">ref </span>key, <span class="kw-2">ref </span>_val) = <span class="kw-2">*</span>key_value; |
| <span class="kw">if </span>!fields.contains(&&<span class="kw-2">*</span>(key.<span class="number">1</span>)) { |
| <span class="prelude-val">Some</span>(key.clone()) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| }) |
| .collect::<Vec<<span class="kw">_</span>>>(); |
| |
| <span class="kw">if </span>!extra_fields.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::UnexpectedKeys { |
| keys: extra_fields |
| .iter() |
| .map(|k| k.<span class="number">1</span>.to_string()) |
| .collect::<Vec<<span class="kw">_</span>>>(), |
| available: fields, |
| }, |
| )); |
| } |
| } |
| <span class="kw">_ </span>=> {} |
| } |
| } |
| |
| <span class="kw">if </span>name == spanned::NAME && fields == [spanned::START, spanned::END, spanned::VALUE] { |
| <span class="kw">let </span>start = <span class="self">self</span>.value.start; |
| <span class="kw">let </span>end = <span class="self">self</span>.value.end; |
| |
| <span class="kw">return </span>visitor.visit_map(SpannedDeserializer { |
| phantom_data: PhantomData, |
| start: <span class="prelude-val">Some</span>(start), |
| value: <span class="prelude-val">Some</span>(<span class="self">self</span>.value), |
| end: <span class="prelude-val">Some</span>(end), |
| }); |
| } |
| |
| <span class="self">self</span>.deserialize_any(visitor) |
| } |
| |
| <span class="comment">// `None` is interpreted as a missing field so be sure to implement `Some` |
| // as a present field. |
| </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: de::Visitor<<span class="lifetime">'de</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><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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value.e { |
| E::String(val) => visitor.visit_enum(val.into_deserializer()), |
| E::InlineTable(values) => { |
| <span class="kw">if </span>values.len() != <span class="number">1 </span>{ |
| <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"exactly 1 element"</span>, |
| found: <span class="kw">if </span>values.is_empty() { |
| <span class="string">"zero elements" |
| </span>} <span class="kw">else </span>{ |
| <span class="string">"more than 1 element" |
| </span>}, |
| }, |
| )) |
| } <span class="kw">else </span>{ |
| visitor.visit_enum(InlineTableDeserializer { |
| values: values.into_iter(), |
| next_value: <span class="prelude-val">None</span>, |
| }) |
| } |
| } |
| e => <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"string or inline table"</span>, |
| found: e.type_name(), |
| }, |
| )), |
| } |
| } |
| |
| <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: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_newtype_struct(<span class="self">self</span>) |
| } |
| |
| <span class="macro">serde::forward_to_deserialize_any! </span>{ |
| bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq |
| bytes byte_buf map unit identifier |
| ignored_any unit_struct tuple_struct tuple |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> de::IntoDeserializer<<span class="lifetime">'de</span>, Error> <span class="kw">for </span>MapVisitor<<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> { |
| <span class="kw">type </span>Deserializer = MapVisitor<<span class="lifetime">'de</span>, <span class="lifetime">'b</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">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'b</span>> de::IntoDeserializer<<span class="lifetime">'de</span>, Error> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'b </span><span class="kw-2">mut </span>Deserializer<<span class="lifetime">'de</span>> { |
| <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">impl</span><<span class="lifetime">'de</span>> de::IntoDeserializer<<span class="lifetime">'de</span>, Error> <span class="kw">for </span>Value<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Deserializer = ValueDeserializer<<span class="lifetime">'de</span>>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| ValueDeserializer::new(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">struct </span>SpannedDeserializer<<span class="lifetime">'de</span>, T: de::IntoDeserializer<<span class="lifetime">'de</span>, Error>> { |
| phantom_data: PhantomData<<span class="kw-2">&</span><span class="lifetime">'de </span>()>, |
| start: <span class="prelude-ty">Option</span><usize>, |
| end: <span class="prelude-ty">Option</span><usize>, |
| value: <span class="prelude-ty">Option</span><T>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, T> de::MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>SpannedDeserializer<<span class="lifetime">'de</span>, T> |
| <span class="kw">where |
| </span>T: de::IntoDeserializer<<span class="lifetime">'de</span>, Error>, |
| { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_key_seed<K>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: K) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><K::Value>, Error> |
| <span class="kw">where |
| </span>K: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span><span class="self">self</span>.start.is_some() { |
| seed.deserialize(BorrowedStrDeserializer::new(spanned::START)) |
| .map(<span class="prelude-val">Some</span>) |
| } <span class="kw">else if </span><span class="self">self</span>.end.is_some() { |
| seed.deserialize(BorrowedStrDeserializer::new(spanned::END)) |
| .map(<span class="prelude-val">Some</span>) |
| } <span class="kw">else if </span><span class="self">self</span>.value.is_some() { |
| seed.deserialize(BorrowedStrDeserializer::new(spanned::VALUE)) |
| .map(<span class="prelude-val">Some</span>) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">fn </span>next_value_seed<V>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(start) = <span class="self">self</span>.start.take() { |
| seed.deserialize(start.into_deserializer()) |
| } <span class="kw">else if let </span><span class="prelude-val">Some</span>(end) = <span class="self">self</span>.end.take() { |
| seed.deserialize(end.into_deserializer()) |
| } <span class="kw">else if let </span><span class="prelude-val">Some</span>(value) = <span class="self">self</span>.value.take() { |
| seed.deserialize(value.into_deserializer()) |
| } <span class="kw">else </span>{ |
| <span class="macro">panic!</span>(<span class="string">"next_value_seed called before next_key_seed"</span>) |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>DatetimeDeserializer<<span class="lifetime">'a</span>> { |
| visited: bool, |
| date: <span class="kw-2">&</span><span class="lifetime">'a </span>str, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>DatetimeDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_key_seed<K>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: K) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><K::Value>, Error> |
| <span class="kw">where |
| </span>K: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span><span class="self">self</span>.visited { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>); |
| } |
| <span class="self">self</span>.visited = <span class="bool-val">true</span>; |
| seed.deserialize(DatetimeFieldDeserializer).map(<span class="prelude-val">Some</span>) |
| } |
| |
| <span class="kw">fn </span>next_value_seed<V>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(StrDeserializer::new(<span class="self">self</span>.date.into())) |
| } |
| } |
| |
| <span class="kw">struct </span>DatetimeFieldDeserializer; |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>DatetimeFieldDeserializer { |
| <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>>, |
| { |
| visitor.visit_borrowed_str(datetime::FIELD) |
| } |
| |
| <span class="macro">serde::forward_to_deserialize_any! </span>{ |
| bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq |
| bytes byte_buf map <span class="kw">struct </span>option unit newtype_struct |
| ignored_any unit_struct tuple_struct tuple <span class="kw">enum </span>identifier |
| } |
| } |
| |
| <span class="kw">struct </span>DottedTableDeserializer<<span class="lifetime">'a</span>> { |
| name: Cow<<span class="lifetime">'a</span>, str>, |
| value: Value<<span class="lifetime">'a</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>DottedTableDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| <span class="kw">type </span>Variant = TableEnumDeserializer<<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), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>(name, value) = (<span class="self">self</span>.name, <span class="self">self</span>.value); |
| seed.deserialize(StrDeserializer::new(name)) |
| .map(|val| (val, TableEnumDeserializer { value })) |
| } |
| } |
| |
| <span class="kw">struct </span>InlineTableDeserializer<<span class="lifetime">'a</span>> { |
| values: vec::IntoIter<TablePair<<span class="lifetime">'a</span>>>, |
| next_value: <span class="prelude-ty">Option</span><Value<<span class="lifetime">'a</span>>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>InlineTableDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>next_key_seed<K>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: K) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><K::Value>, Error> |
| <span class="kw">where |
| </span>K: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>(key, value) = <span class="kw">match </span><span class="self">self</span>.values.next() { |
| <span class="prelude-val">Some</span>(pair) => pair, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| }; |
| <span class="self">self</span>.next_value = <span class="prelude-val">Some</span>(value); |
| seed.deserialize(StrDeserializer::spanned(key)).map(<span class="prelude-val">Some</span>) |
| } |
| |
| <span class="kw">fn </span>next_value_seed<V>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><V::Value, Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>value = <span class="self">self</span>.next_value.take().expect(<span class="string">"Unable to read table values"</span>); |
| seed.deserialize(ValueDeserializer::new(value)) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>InlineTableDeserializer<<span class="lifetime">'de</span>> { |
| <span class="kw">type </span>Error = Error; |
| <span class="kw">type </span>Variant = TableEnumDeserializer<<span class="lifetime">'de</span>>; |
| |
| <span class="kw">fn </span>variant_seed<V>(<span class="kw-2">mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><(V::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>(key, value) = <span class="kw">match </span><span class="self">self</span>.values.next() { |
| <span class="prelude-val">Some</span>(pair) => pair, |
| <span class="prelude-val">None </span>=> { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">None</span>, <span class="comment">// FIXME: How do we get an offset here? |
| </span>ErrorKind::Wanted { |
| expected: <span class="string">"table with exactly 1 entry"</span>, |
| found: <span class="string">"empty table"</span>, |
| }, |
| )); |
| } |
| }; |
| |
| seed.deserialize(StrDeserializer::new(key.<span class="number">1</span>)) |
| .map(|val| (val, TableEnumDeserializer { value })) |
| } |
| } |
| |
| <span class="doccomment">/// Deserializes table values into enum variants. |
| </span><span class="kw">struct </span>TableEnumDeserializer<<span class="lifetime">'a</span>> { |
| value: Value<<span class="lifetime">'a</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>> de::VariantAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>TableEnumDeserializer<<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><(), <span class="self">Self</span>::Error> { |
| <span class="kw">match </span><span class="self">self</span>.value.e { |
| E::InlineTable(values) | E::DottedTable(values) => { |
| <span class="kw">if </span>values.is_empty() { |
| <span class="prelude-val">Ok</span>(()) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::ExpectedEmptyTable, |
| )) |
| } |
| } |
| e => <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"table"</span>, |
| found: e.type_name(), |
| }, |
| )), |
| } |
| } |
| |
| <span class="kw">fn </span>newtype_variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(ValueDeserializer::new(<span class="self">self</span>.value)) |
| } |
| |
| <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, <span class="self">Self</span>::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.e { |
| E::InlineTable(values) | E::DottedTable(values) => { |
| <span class="kw">let </span>tuple_values = values |
| .into_iter() |
| .enumerate() |
| .map(|(index, (key, value))| <span class="kw">match </span>key.<span class="number">1</span>.parse::<usize>() { |
| <span class="prelude-val">Ok</span>(key_index) <span class="kw">if </span>key_index == index => <span class="prelude-val">Ok</span>(value), |
| <span class="prelude-val">Ok</span>(<span class="kw">_</span>) | <span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(key.<span class="number">0</span>.start), |
| ErrorKind::ExpectedTupleIndex { |
| expected: index, |
| found: key.<span class="number">1</span>.to_string(), |
| }, |
| )), |
| }) |
| <span class="comment">// Fold all values into a `Vec`, or return the first error. |
| </span>.fold(<span class="prelude-val">Ok</span>(Vec::with_capacity(len)), |result, value_result| { |
| result.and_then(<span class="kw">move </span>|<span class="kw-2">mut </span>tuple_values| <span class="kw">match </span>value_result { |
| <span class="prelude-val">Ok</span>(value) => { |
| tuple_values.push(value); |
| <span class="prelude-val">Ok</span>(tuple_values) |
| } |
| <span class="comment">// `Result<de::Value, Self::Error>` to `Result<Vec<_>, Self::Error>` |
| </span><span class="prelude-val">Err</span>(e) => <span class="prelude-val">Err</span>(e), |
| }) |
| })<span class="question-mark">?</span>; |
| |
| <span class="kw">if </span>tuple_values.len() == len { |
| de::Deserializer::deserialize_seq( |
| ValueDeserializer::new(Value { |
| e: E::Array(tuple_values), |
| start: <span class="self">self</span>.value.start, |
| end: <span class="self">self</span>.value.end, |
| }), |
| visitor, |
| ) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::ExpectedTuple(len), |
| )) |
| } |
| } |
| e => <span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.value.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"table"</span>, |
| found: e.type_name(), |
| }, |
| )), |
| } |
| } |
| |
| <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, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| de::Deserializer::deserialize_struct( |
| ValueDeserializer::new(<span class="self">self</span>.value).with_struct_key_validation(), |
| <span class="string">""</span>, <span class="comment">// TODO: this should be the variant name |
| </span>fields, |
| visitor, |
| ) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Deserializer<<span class="lifetime">'a</span>> { |
| <span class="doccomment">/// Creates a new deserializer which will be deserializing the string |
| /// provided. |
| </span><span class="kw">pub fn </span>new(input: <span class="kw-2">&</span><span class="lifetime">'a </span>str) -> Deserializer<<span class="lifetime">'a</span>> { |
| Deserializer { |
| tokens: Tokenizer::new(input), |
| input, |
| require_newline_after_table: <span class="bool-val">true</span>, |
| allow_duplciate_after_longer_table: <span class="bool-val">false</span>, |
| } |
| } |
| |
| <span class="attribute">#[doc(hidden)] |
| #[deprecated(since = <span class="string">"0.5.11"</span>)] |
| </span><span class="kw">pub fn </span>end(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[doc(hidden)] |
| #[deprecated(since = <span class="string">"0.5.11"</span>)] |
| </span><span class="kw">pub fn </span>set_require_newline_after_table(<span class="kw-2">&mut </span><span class="self">self</span>, require: bool) { |
| <span class="self">self</span>.require_newline_after_table = require; |
| } |
| |
| <span class="attribute">#[doc(hidden)] |
| #[deprecated(since = <span class="string">"0.5.11"</span>)] |
| </span><span class="kw">pub fn </span>set_allow_duplicate_after_longer_table(<span class="kw-2">&mut </span><span class="self">self</span>, allow: bool) { |
| <span class="self">self</span>.allow_duplciate_after_longer_table = allow; |
| } |
| |
| <span class="kw">fn </span>tables(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Vec<Table<<span class="lifetime">'a</span>>>, Error> { |
| <span class="kw">let </span><span class="kw-2">mut </span>tables = Vec::new(); |
| <span class="kw">let </span><span class="kw-2">mut </span>cur_table = Table { |
| at: <span class="number">0</span>, |
| header: Vec::new(), |
| values: <span class="prelude-val">None</span>, |
| array: <span class="bool-val">false</span>, |
| }; |
| |
| <span class="kw">while let </span><span class="prelude-val">Some</span>(line) = <span class="self">self</span>.line()<span class="question-mark">? </span>{ |
| <span class="kw">match </span>line { |
| Line::Table { |
| at, |
| <span class="kw-2">mut </span>header, |
| array, |
| } => { |
| <span class="kw">if </span>!cur_table.header.is_empty() || cur_table.values.is_some() { |
| tables.push(cur_table); |
| } |
| cur_table = Table { |
| at, |
| header: Vec::new(), |
| values: <span class="prelude-val">Some</span>(Vec::new()), |
| array, |
| }; |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>part = header.next().map_err(|e| <span class="self">self</span>.token_error(e)); |
| <span class="kw">match </span>part<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>(part) => cur_table.header.push(part), |
| <span class="prelude-val">None </span>=> <span class="kw">break</span>, |
| } |
| } |
| } |
| Line::KeyValue(key, value) => { |
| <span class="kw">if </span>cur_table.values.is_none() { |
| cur_table.values = <span class="prelude-val">Some</span>(Vec::new()); |
| } |
| <span class="self">self</span>.add_dotted_key(key, value, cur_table.values.as_mut().unwrap())<span class="question-mark">?</span>; |
| } |
| } |
| } |
| <span class="kw">if </span>!cur_table.header.is_empty() || cur_table.values.is_some() { |
| tables.push(cur_table); |
| } |
| <span class="prelude-val">Ok</span>(tables) |
| } |
| |
| <span class="kw">fn </span>line(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><Line<<span class="lifetime">'a</span>>>, Error> { |
| <span class="kw">loop </span>{ |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">if </span><span class="self">self</span>.eat_comment()<span class="question-mark">? </span>{ |
| <span class="kw">continue</span>; |
| } |
| <span class="kw">if </span><span class="self">self</span>.eat(Token::Newline)<span class="question-mark">? </span>{ |
| <span class="kw">continue</span>; |
| } |
| <span class="kw">break</span>; |
| } |
| |
| <span class="kw">match </span><span class="self">self</span>.peek()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::LeftBracket)) => <span class="self">self</span>.table_header().map(<span class="prelude-val">Some</span>), |
| <span class="prelude-val">Some</span>(<span class="kw">_</span>) => <span class="self">self</span>.key_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>table_header(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Line<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">let </span>start = <span class="self">self</span>.tokens.current(); |
| <span class="self">self</span>.expect(Token::LeftBracket)<span class="question-mark">?</span>; |
| <span class="kw">let </span>array = <span class="self">self</span>.eat(Token::LeftBracket)<span class="question-mark">?</span>; |
| <span class="kw">let </span>ret = Header::new(<span class="self">self</span>.tokens.clone(), array, <span class="self">self</span>.require_newline_after_table); |
| <span class="kw">if </span><span class="self">self</span>.require_newline_after_table { |
| <span class="self">self</span>.tokens.skip_to_newline(); |
| } <span class="kw">else </span>{ |
| <span class="kw">loop </span>{ |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::RightBracket)) => { |
| <span class="kw">if </span>array { |
| <span class="self">self</span>.eat(Token::RightBracket)<span class="question-mark">?</span>; |
| } |
| <span class="kw">break</span>; |
| } |
| <span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::Newline)) | <span class="prelude-val">None </span>=> <span class="kw">break</span>, |
| <span class="kw">_ </span>=> {} |
| } |
| } |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(Line::Table { |
| at: start, |
| header: ret, |
| array, |
| }) |
| } |
| |
| <span class="kw">fn </span>key_value(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Line<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">let </span>key = <span class="self">self</span>.dotted_key()<span class="question-mark">?</span>; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="self">self</span>.expect(Token::Equals)<span class="question-mark">?</span>; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>value = <span class="self">self</span>.value()<span class="question-mark">?</span>; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">if </span>!<span class="self">self</span>.eat_comment()<span class="question-mark">? </span>{ |
| <span class="self">self</span>.eat_newline_or_eof()<span class="question-mark">?</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(Line::KeyValue(key, value)) |
| } |
| |
| <span class="kw">fn </span>value(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Value<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">let </span>at = <span class="self">self</span>.tokens.current(); |
| <span class="kw">let </span>value = <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { start, end }, Token::String { val, .. })) => Value { |
| e: E::String(val), |
| start, |
| end, |
| }, |
| <span class="prelude-val">Some</span>((Span { start, end }, Token::Keylike(<span class="string">"true"</span>))) => Value { |
| e: E::Boolean(<span class="bool-val">true</span>), |
| start, |
| end, |
| }, |
| <span class="prelude-val">Some</span>((Span { start, end }, Token::Keylike(<span class="string">"false"</span>))) => Value { |
| e: E::Boolean(<span class="bool-val">false</span>), |
| start, |
| end, |
| }, |
| <span class="prelude-val">Some</span>((span, Token::Keylike(key))) => <span class="self">self</span>.parse_keylike(at, span, key)<span class="question-mark">?</span>, |
| <span class="prelude-val">Some</span>((span, Token::Plus)) => <span class="self">self</span>.number_leading_plus(span)<span class="question-mark">?</span>, |
| <span class="prelude-val">Some</span>((Span { start, .. }, Token::LeftBrace)) => { |
| <span class="self">self</span>.inline_table().map(|(Span { end, .. }, table)| Value { |
| e: E::InlineTable(table), |
| start, |
| end, |
| })<span class="question-mark">? |
| </span>} |
| <span class="prelude-val">Some</span>((Span { start, .. }, Token::LeftBracket)) => { |
| <span class="self">self</span>.array().map(|(Span { end, .. }, array)| Value { |
| e: E::Array(array), |
| start, |
| end, |
| })<span class="question-mark">? |
| </span>} |
| <span class="prelude-val">Some</span>(token) => { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error( |
| at, |
| ErrorKind::Wanted { |
| expected: <span class="string">"a value"</span>, |
| found: token.<span class="number">1</span>.describe(), |
| }, |
| )); |
| } |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.eof()), |
| }; |
| <span class="prelude-val">Ok</span>(value) |
| } |
| |
| <span class="kw">fn </span>parse_keylike(<span class="kw-2">&mut </span><span class="self">self</span>, at: usize, span: Span, key: <span class="kw-2">&</span><span class="lifetime">'a </span>str) -> <span class="prelude-ty">Result</span><Value<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">if </span>key == <span class="string">"inf" </span>|| key == <span class="string">"nan" </span>{ |
| <span class="kw">return </span><span class="self">self</span>.number_or_date(span, key); |
| } |
| |
| <span class="kw">let </span>first_char = key.chars().next().expect(<span class="string">"key should not be empty here"</span>); |
| <span class="kw">match </span>first_char { |
| <span class="string">'-' </span>| <span class="string">'0'</span>..=<span class="string">'9' </span>=> <span class="self">self</span>.number_or_date(span, key), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.error(at, ErrorKind::UnquotedString)), |
| } |
| } |
| |
| <span class="kw">fn </span>number_or_date(<span class="kw-2">&mut </span><span class="self">self</span>, span: Span, s: <span class="kw-2">&</span><span class="lifetime">'a </span>str) -> <span class="prelude-ty">Result</span><Value<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">if </span>s.contains(<span class="string">'T'</span>) |
| || s.contains(<span class="string">'t'</span>) |
| || (s.len() > <span class="number">1 </span>&& s[<span class="number">1</span>..].contains(<span class="string">'-'</span>) && !s.contains(<span class="string">"e-"</span>) && !s.contains(<span class="string">"E-"</span>)) |
| { |
| <span class="self">self</span>.datetime(span, s, <span class="bool-val">false</span>) |
| .map(|(Span { start, end }, d)| Value { |
| e: E::Datetime(d), |
| start, |
| end, |
| }) |
| } <span class="kw">else if </span><span class="self">self</span>.eat(Token::Colon)<span class="question-mark">? </span>{ |
| <span class="self">self</span>.datetime(span, s, <span class="bool-val">true</span>) |
| .map(|(Span { start, end }, d)| Value { |
| e: E::Datetime(d), |
| start, |
| end, |
| }) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.number(span, s) |
| } |
| } |
| |
| <span class="doccomment">/// Returns a string or table value type. |
| /// |
| /// Used to deserialize enums. Unit enums may be represented as a string or a table, all other |
| /// structures (tuple, newtype, struct) must be represented as a table. |
| </span><span class="kw">fn </span>string_or_table(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(Value<<span class="lifetime">'a</span>>, <span class="prelude-ty">Option</span><Cow<<span class="lifetime">'a</span>, str>>), Error> { |
| <span class="kw">match </span><span class="self">self</span>.peek()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((span, Token::LeftBracket)) => { |
| <span class="kw">let </span>tables = <span class="self">self</span>.tables()<span class="question-mark">?</span>; |
| <span class="kw">if </span>tables.len() != <span class="number">1 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(Error::from_kind( |
| <span class="prelude-val">Some</span>(span.start), |
| ErrorKind::Wanted { |
| expected: <span class="string">"exactly 1 table"</span>, |
| found: <span class="kw">if </span>tables.is_empty() { |
| <span class="string">"zero tables" |
| </span>} <span class="kw">else </span>{ |
| <span class="string">"more than 1 table" |
| </span>}, |
| }, |
| )); |
| } |
| |
| <span class="kw">let </span>table = tables |
| .into_iter() |
| .next() |
| .expect(<span class="string">"Expected exactly one table"</span>); |
| <span class="kw">let </span>header = table |
| .header |
| .last() |
| .expect(<span class="string">"Expected at least one header value for table."</span>); |
| |
| <span class="kw">let </span>start = table.at; |
| <span class="kw">let </span>end = table |
| .values |
| .as_ref() |
| .and_then(|values| values.last()) |
| .map(|<span class="kw-2">&</span>(<span class="kw">_</span>, <span class="kw-2">ref </span>val)| val.end) |
| .unwrap_or_else(|| header.<span class="number">1</span>.len()); |
| <span class="prelude-val">Ok</span>(( |
| Value { |
| e: E::DottedTable(table.values.unwrap_or_default()), |
| start, |
| end, |
| }, |
| <span class="prelude-val">Some</span>(header.<span class="number">1</span>.clone()), |
| )) |
| } |
| <span class="prelude-val">Some</span>(<span class="kw">_</span>) => <span class="self">self</span>.value().map(|val| (val, <span class="prelude-val">None</span>)), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.eof()), |
| } |
| } |
| |
| <span class="kw">fn </span>number(<span class="kw-2">&mut </span><span class="self">self</span>, Span { start, end }: Span, s: <span class="kw-2">&</span><span class="lifetime">'a </span>str) -> <span class="prelude-ty">Result</span><Value<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">let </span>to_integer = |f| Value { |
| e: E::Integer(f), |
| start, |
| end, |
| }; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(value) = s.strip_prefix(<span class="string">"0x"</span>) { |
| <span class="self">self</span>.integer(value, <span class="number">16</span>).map(to_integer) |
| } <span class="kw">else if let </span><span class="prelude-val">Some</span>(value) = s.strip_prefix(<span class="string">"0o"</span>) { |
| <span class="self">self</span>.integer(value, <span class="number">8</span>).map(to_integer) |
| } <span class="kw">else if let </span><span class="prelude-val">Some</span>(value) = s.strip_prefix(<span class="string">"0b"</span>) { |
| <span class="self">self</span>.integer(value, <span class="number">2</span>).map(to_integer) |
| } <span class="kw">else if </span>s.contains(<span class="string">'e'</span>) || s.contains(<span class="string">'E'</span>) { |
| <span class="self">self</span>.float(s, <span class="prelude-val">None</span>).map(|f| Value { |
| e: E::Float(f), |
| start, |
| end, |
| }) |
| } <span class="kw">else if </span><span class="self">self</span>.eat(Token::Period)<span class="question-mark">? </span>{ |
| <span class="kw">let </span>at = <span class="self">self</span>.tokens.current(); |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { start, end }, Token::Keylike(after))) => { |
| <span class="self">self</span>.float(s, <span class="prelude-val">Some</span>(after)).map(|f| Value { |
| e: E::Float(f), |
| start, |
| end, |
| }) |
| } |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.error(at, ErrorKind::NumberInvalid)), |
| } |
| } <span class="kw">else if </span>s == <span class="string">"inf" </span>{ |
| <span class="prelude-val">Ok</span>(Value { |
| e: E::Float(f64::INFINITY), |
| start, |
| end, |
| }) |
| } <span class="kw">else if </span>s == <span class="string">"-inf" </span>{ |
| <span class="prelude-val">Ok</span>(Value { |
| e: E::Float(f64::NEG_INFINITY), |
| start, |
| end, |
| }) |
| } <span class="kw">else if </span>s == <span class="string">"nan" </span>{ |
| <span class="prelude-val">Ok</span>(Value { |
| e: E::Float(f64::NAN), |
| start, |
| end, |
| }) |
| } <span class="kw">else if </span>s == <span class="string">"-nan" </span>{ |
| <span class="prelude-val">Ok</span>(Value { |
| e: E::Float(-f64::NAN), |
| start, |
| end, |
| }) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.integer(s, <span class="number">10</span>).map(to_integer) |
| } |
| } |
| |
| <span class="kw">fn </span>number_leading_plus(<span class="kw-2">&mut </span><span class="self">self</span>, Span { start, .. }: Span) -> <span class="prelude-ty">Result</span><Value<<span class="lifetime">'a</span>>, Error> { |
| <span class="kw">let </span>start_token = <span class="self">self</span>.tokens.current(); |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { end, .. }, Token::Keylike(s))) => <span class="self">self</span>.number(Span { start, end }, s), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(<span class="self">self</span>.error(start_token, ErrorKind::NumberInvalid)), |
| } |
| } |
| |
| <span class="kw">fn </span>integer(<span class="kw-2">&</span><span class="self">self</span>, s: <span class="kw-2">&</span><span class="lifetime">'a </span>str, radix: u32) -> <span class="prelude-ty">Result</span><i64, Error> { |
| <span class="kw">let </span>allow_sign = radix == <span class="number">10</span>; |
| <span class="kw">let </span>allow_leading_zeros = radix != <span class="number">10</span>; |
| <span class="kw">let </span>(prefix, suffix) = <span class="self">self</span>.parse_integer(s, allow_sign, allow_leading_zeros, radix)<span class="question-mark">?</span>; |
| <span class="kw">let </span>start = <span class="self">self</span>.tokens.substr_offset(s); |
| <span class="kw">if </span>!suffix.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)); |
| } |
| i64::from_str_radix(prefix.replace(<span class="string">'_'</span>, <span class="string">""</span>).trim_start_matches(<span class="string">'+'</span>), radix) |
| .map_err(|_e| <span class="self">self</span>.error(start, ErrorKind::NumberInvalid)) |
| } |
| |
| <span class="kw">fn </span>parse_integer( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| s: <span class="kw-2">&</span><span class="lifetime">'a </span>str, |
| allow_sign: bool, |
| allow_leading_zeros: bool, |
| radix: u32, |
| ) -> <span class="prelude-ty">Result</span><(<span class="kw-2">&</span><span class="lifetime">'a </span>str, <span class="kw-2">&</span><span class="lifetime">'a </span>str), Error> { |
| <span class="kw">let </span>start = <span class="self">self</span>.tokens.substr_offset(s); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>first = <span class="bool-val">true</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>first_zero = <span class="bool-val">false</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>underscore = <span class="bool-val">false</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>end = s.len(); |
| <span class="kw">for </span>(i, c) <span class="kw">in </span>s.char_indices() { |
| <span class="kw">let </span>at = i + start; |
| <span class="kw">if </span>i == <span class="number">0 </span>&& (c == <span class="string">'+' </span>|| c == <span class="string">'-'</span>) && allow_sign { |
| <span class="kw">continue</span>; |
| } |
| |
| <span class="kw">if </span>c == <span class="string">'0' </span>&& first { |
| first_zero = <span class="bool-val">true</span>; |
| } <span class="kw">else if </span>c.is_digit(radix) { |
| <span class="kw">if </span>!first && first_zero && !allow_leading_zeros { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(at, ErrorKind::NumberInvalid)); |
| } |
| underscore = <span class="bool-val">false</span>; |
| } <span class="kw">else if </span>c == <span class="string">'_' </span>&& first { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(at, ErrorKind::NumberInvalid)); |
| } <span class="kw">else if </span>c == <span class="string">'_' </span>&& !underscore { |
| underscore = <span class="bool-val">true</span>; |
| } <span class="kw">else </span>{ |
| end = i; |
| <span class="kw">break</span>; |
| } |
| first = <span class="bool-val">false</span>; |
| } |
| <span class="kw">if </span>first || underscore { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)); |
| } |
| <span class="prelude-val">Ok</span>((<span class="kw-2">&</span>s[..end], <span class="kw-2">&</span>s[end..])) |
| } |
| |
| <span class="kw">fn </span>float(<span class="kw-2">&mut </span><span class="self">self</span>, s: <span class="kw-2">&</span><span class="lifetime">'a </span>str, after_decimal: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>str>) -> <span class="prelude-ty">Result</span><f64, Error> { |
| <span class="kw">let </span>(integral, <span class="kw-2">mut </span>suffix) = <span class="self">self</span>.parse_integer(s, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="number">10</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>start = <span class="self">self</span>.tokens.substr_offset(integral); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>fraction = <span class="prelude-val">None</span>; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(after) = after_decimal { |
| <span class="kw">if </span>!suffix.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)); |
| } |
| <span class="kw">let </span>(a, b) = <span class="self">self</span>.parse_integer(after, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="number">10</span>)<span class="question-mark">?</span>; |
| fraction = <span class="prelude-val">Some</span>(a); |
| suffix = b; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>exponent = <span class="prelude-val">None</span>; |
| <span class="kw">if </span>suffix.starts_with(<span class="string">'e'</span>) || suffix.starts_with(<span class="string">'E'</span>) { |
| <span class="kw">let </span>(a, b) = <span class="kw">if </span>suffix.len() == <span class="number">1 </span>{ |
| <span class="self">self</span>.eat(Token::Plus)<span class="question-mark">?</span>; |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::Keylike(s))) => <span class="self">self</span>.parse_integer(s, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="number">10</span>)<span class="question-mark">?</span>, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)), |
| } |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.parse_integer(<span class="kw-2">&</span>suffix[<span class="number">1</span>..], <span class="bool-val">true</span>, <span class="bool-val">true</span>, <span class="number">10</span>)<span class="question-mark">? |
| </span>}; |
| <span class="kw">if </span>!b.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)); |
| } |
| exponent = <span class="prelude-val">Some</span>(a); |
| } <span class="kw">else if </span>!suffix.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)); |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>number = integral |
| .trim_start_matches(<span class="string">'+'</span>) |
| .chars() |
| .filter(|c| <span class="kw-2">*</span>c != <span class="string">'_'</span>) |
| .collect::<String>(); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(fraction) = fraction { |
| number.push(<span class="string">'.'</span>); |
| number.extend(fraction.chars().filter(|c| <span class="kw-2">*</span>c != <span class="string">'_'</span>)); |
| } |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(exponent) = exponent { |
| number.push(<span class="string">'E'</span>); |
| number.extend(exponent.chars().filter(|c| <span class="kw-2">*</span>c != <span class="string">'_'</span>)); |
| } |
| number |
| .parse() |
| .map_err(|_e| <span class="self">self</span>.error(start, ErrorKind::NumberInvalid)) |
| .and_then(|n: f64| { |
| <span class="kw">if </span>n.is_finite() { |
| <span class="prelude-val">Ok</span>(n) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::NumberInvalid)) |
| } |
| }) |
| } |
| |
| <span class="kw">fn </span>datetime( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| <span class="kw-2">mut </span>span: Span, |
| date: <span class="kw-2">&</span><span class="lifetime">'a </span>str, |
| colon_eaten: bool, |
| ) -> <span class="prelude-ty">Result</span><(Span, <span class="kw-2">&</span><span class="lifetime">'a </span>str), Error> { |
| <span class="kw">let </span>start = <span class="self">self</span>.tokens.substr_offset(date); |
| |
| <span class="comment">// Check for space separated date and time. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>lookahead = <span class="self">self</span>.tokens.clone(); |
| <span class="kw">if let </span><span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::Whitespace(<span class="string">" "</span>)))) = lookahead.next() { |
| <span class="comment">// Check if hour follows. |
| </span><span class="kw">if let </span><span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::Keylike(<span class="kw">_</span>)))) = lookahead.next() { |
| <span class="self">self</span>.next()<span class="question-mark">?</span>; <span class="comment">// skip space |
| </span><span class="self">self</span>.next()<span class="question-mark">?</span>; <span class="comment">// skip keylike hour |
| </span>} |
| } |
| |
| <span class="kw">if </span>colon_eaten || <span class="self">self</span>.eat(Token::Colon)<span class="question-mark">? </span>{ |
| <span class="comment">// minutes |
| </span><span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((<span class="kw">_</span>, Token::Keylike(<span class="kw">_</span>))) => {} |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::DateInvalid)), |
| } |
| <span class="comment">// Seconds |
| </span><span class="self">self</span>.expect(Token::Colon)<span class="question-mark">?</span>; |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { end, .. }, Token::Keylike(<span class="kw">_</span>))) => { |
| span.end = end; |
| } |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::DateInvalid)), |
| } |
| <span class="comment">// Fractional seconds |
| </span><span class="kw">if </span><span class="self">self</span>.eat(Token::Period)<span class="question-mark">? </span>{ |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { end, .. }, Token::Keylike(<span class="kw">_</span>))) => { |
| span.end = end; |
| } |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::DateInvalid)), |
| } |
| } |
| |
| <span class="comment">// offset |
| </span><span class="kw">if </span><span class="self">self</span>.eat(Token::Plus)<span class="question-mark">? </span>{ |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { end, .. }, Token::Keylike(<span class="kw">_</span>))) => { |
| span.end = end; |
| } |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::DateInvalid)), |
| } |
| } |
| <span class="kw">if </span><span class="self">self</span>.eat(Token::Colon)<span class="question-mark">? </span>{ |
| <span class="kw">match </span><span class="self">self</span>.next()<span class="question-mark">? </span>{ |
| <span class="prelude-val">Some</span>((Span { end, .. }, Token::Keylike(<span class="kw">_</span>))) => { |
| span.end = end; |
| } |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::DateInvalid)), |
| } |
| } |
| } |
| |
| <span class="kw">let </span>end = <span class="self">self</span>.tokens.current(); |
| <span class="prelude-val">Ok</span>((span, <span class="kw-2">&</span><span class="self">self</span>.tokens.input()[start..end])) |
| } |
| |
| <span class="comment">// TODO(#140): shouldn't buffer up this entire table in memory, it'd be |
| // great to defer parsing everything until later. |
| </span><span class="kw">fn </span>inline_table(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(Span, Vec<TablePair<<span class="lifetime">'a</span>>>), Error> { |
| <span class="kw">let </span><span class="kw-2">mut </span>ret = Vec::new(); |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(span) = <span class="self">self</span>.eat_spanned(Token::RightBrace)<span class="question-mark">? </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((span, ret)); |
| } |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>key = <span class="self">self</span>.dotted_key()<span class="question-mark">?</span>; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="self">self</span>.expect(Token::Equals)<span class="question-mark">?</span>; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">let </span>value = <span class="self">self</span>.value()<span class="question-mark">?</span>; |
| <span class="self">self</span>.add_dotted_key(key, value, <span class="kw-2">&mut </span>ret)<span class="question-mark">?</span>; |
| |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(span) = <span class="self">self</span>.eat_spanned(Token::RightBrace)<span class="question-mark">? </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((span, ret)); |
| } |
| <span class="self">self</span>.expect(Token::Comma)<span class="question-mark">?</span>; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| } |
| } |
| |
| <span class="comment">// TODO(#140): shouldn't buffer up this entire array in memory, it'd be |
| // great to defer parsing everything until later. |
| </span><span class="kw">fn </span>array(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(Span, Vec<Value<<span class="lifetime">'a</span>>>), Error> { |
| <span class="kw">let </span><span class="kw-2">mut </span>ret = Vec::new(); |
| |
| <span class="kw">let </span>intermediate = |me: <span class="kw-2">&mut </span>Deserializer<<span class="lifetime">'_</span>>| { |
| <span class="kw">loop </span>{ |
| me.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">if </span>!me.eat(Token::Newline)<span class="question-mark">? </span>&& !me.eat_comment()<span class="question-mark">? </span>{ |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="prelude-val">Ok</span>(()) |
| }; |
| |
| <span class="kw">loop </span>{ |
| intermediate(<span class="self">self</span>)<span class="question-mark">?</span>; |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(span) = <span class="self">self</span>.eat_spanned(Token::RightBracket)<span class="question-mark">? </span>{ |
| <span class="kw">return </span><span class="prelude-val">Ok</span>((span, ret)); |
| } |
| <span class="kw">let </span>value = <span class="self">self</span>.value()<span class="question-mark">?</span>; |
| ret.push(value); |
| intermediate(<span class="self">self</span>)<span class="question-mark">?</span>; |
| <span class="kw">if </span>!<span class="self">self</span>.eat(Token::Comma)<span class="question-mark">? </span>{ |
| <span class="kw">break</span>; |
| } |
| } |
| intermediate(<span class="self">self</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>span = <span class="self">self</span>.expect_spanned(Token::RightBracket)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>((span, ret)) |
| } |
| |
| <span class="kw">fn </span>table_key(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(Span, Cow<<span class="lifetime">'a</span>, str>), Error> { |
| <span class="self">self</span>.tokens.table_key().map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>dotted_key(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><Vec<(Span, Cow<<span class="lifetime">'a</span>, str>)>, Error> { |
| <span class="kw">let </span><span class="kw-2">mut </span>result = <span class="macro">vec!</span>[<span class="self">self</span>.table_key()<span class="question-mark">?</span>]; |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">while </span><span class="self">self</span>.eat(Token::Period)<span class="question-mark">? </span>{ |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| result.push(<span class="self">self</span>.table_key()<span class="question-mark">?</span>); |
| <span class="self">self</span>.eat_whitespace()<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(result) |
| } |
| |
| <span class="doccomment">/// Stores a value in the appropriate hierarchical structure positioned based on the dotted key. |
| /// |
| /// Given the following definition: `multi.part.key = "value"`, `multi` and `part` are |
| /// intermediate parts which are mapped to the relevant fields in the deserialized type's data |
| /// hierarchy. |
| /// |
| /// # Parameters |
| /// |
| /// * `key_parts`: Each segment of the dotted key, e.g. `part.one` maps to |
| /// `vec![Cow::Borrowed("part"), Cow::Borrowed("one")].` |
| /// * `value`: The parsed value. |
| /// * `values`: The `Vec` to store the value in. |
| </span><span class="kw">fn </span>add_dotted_key( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| <span class="kw-2">mut </span>key_parts: Vec<(Span, Cow<<span class="lifetime">'a</span>, str>)>, |
| value: Value<<span class="lifetime">'a</span>>, |
| values: <span class="kw-2">&mut </span>Vec<TablePair<<span class="lifetime">'a</span>>>, |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">let </span>key = key_parts.remove(<span class="number">0</span>); |
| <span class="kw">if </span>key_parts.is_empty() { |
| values.push((key, value)); |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">match </span>values.iter_mut().find(|&&<span class="kw-2">mut </span>(<span class="kw-2">ref </span>k, <span class="kw">_</span>)| <span class="kw-2">*</span>k.<span class="number">1 </span>== key.<span class="number">1</span>) { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut </span>( |
| <span class="kw">_</span>, |
| Value { |
| e: E::DottedTable(<span class="kw-2">ref mut </span>v), |
| .. |
| }, |
| )) => { |
| <span class="kw">return </span><span class="self">self</span>.add_dotted_key(key_parts, value, v); |
| } |
| <span class="prelude-val">Some</span>(<span class="kw-2">&mut </span>(<span class="kw">_</span>, Value { start, .. })) => { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="self">self</span>.error(start, ErrorKind::DottedKeyInvalidType)); |
| } |
| <span class="prelude-val">None </span>=> {} |
| } |
| <span class="comment">// The start/end value is somewhat misleading here. |
| </span><span class="kw">let </span>table_values = Value { |
| e: E::DottedTable(Vec::new()), |
| start: value.start, |
| end: value.end, |
| }; |
| values.push((key, table_values)); |
| <span class="kw">let </span>last_i = values.len() - <span class="number">1</span>; |
| <span class="kw">if let </span>( |
| <span class="kw">_</span>, |
| Value { |
| e: E::DottedTable(<span class="kw-2">ref mut </span>v), |
| .. |
| }, |
| ) = values[last_i] |
| { |
| <span class="self">self</span>.add_dotted_key(key_parts, value, v)<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>eat_whitespace(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.tokens |
| .eat_whitespace() |
| .map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>eat_comment(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><bool, Error> { |
| <span class="self">self</span>.tokens.eat_comment().map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>eat_newline_or_eof(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.tokens |
| .eat_newline_or_eof() |
| .map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>eat(<span class="kw-2">&mut </span><span class="self">self</span>, expected: Token<<span class="lifetime">'a</span>>) -> <span class="prelude-ty">Result</span><bool, Error> { |
| <span class="self">self</span>.tokens.eat(expected).map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>eat_spanned(<span class="kw-2">&mut </span><span class="self">self</span>, expected: Token<<span class="lifetime">'a</span>>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><Span>, Error> { |
| <span class="self">self</span>.tokens |
| .eat_spanned(expected) |
| .map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>expect(<span class="kw-2">&mut </span><span class="self">self</span>, expected: Token<<span class="lifetime">'a</span>>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.tokens |
| .expect(expected) |
| .map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>expect_spanned(<span class="kw-2">&mut </span><span class="self">self</span>, expected: Token<<span class="lifetime">'a</span>>) -> <span class="prelude-ty">Result</span><Span, Error> { |
| <span class="self">self</span>.tokens |
| .expect_spanned(expected) |
| .map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><(Span, Token<<span class="lifetime">'a</span>>)>, Error> { |
| <span class="self">self</span>.tokens.next().map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>peek(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><(Span, Token<<span class="lifetime">'a</span>>)>, Error> { |
| <span class="self">self</span>.tokens.peek().map_err(|e| <span class="self">self</span>.token_error(e)) |
| } |
| |
| <span class="kw">fn </span>eof(<span class="kw-2">&</span><span class="self">self</span>) -> Error { |
| <span class="self">self</span>.error(<span class="self">self</span>.input.len(), ErrorKind::UnexpectedEof) |
| } |
| |
| <span class="kw">fn </span>token_error(<span class="kw-2">&</span><span class="self">self</span>, error: TokenError) -> Error { |
| <span class="kw">match </span>error { |
| TokenError::InvalidCharInString(at, ch) => { |
| <span class="self">self</span>.error(at, ErrorKind::InvalidCharInString(ch)) |
| } |
| TokenError::InvalidEscape(at, ch) => <span class="self">self</span>.error(at, ErrorKind::InvalidEscape(ch)), |
| TokenError::InvalidEscapeValue(at, v) => { |
| <span class="self">self</span>.error(at, ErrorKind::InvalidEscapeValue(v)) |
| } |
| TokenError::InvalidHexEscape(at, ch) => <span class="self">self</span>.error(at, ErrorKind::InvalidHexEscape(ch)), |
| TokenError::NewlineInString(at) => <span class="self">self</span>.error(at, ErrorKind::NewlineInString), |
| TokenError::Unexpected(at, ch) => <span class="self">self</span>.error(at, ErrorKind::Unexpected(ch)), |
| TokenError::UnterminatedString(at) => <span class="self">self</span>.error(at, ErrorKind::UnterminatedString), |
| TokenError::NewlineInTableKey(at) => <span class="self">self</span>.error(at, ErrorKind::NewlineInTableKey), |
| TokenError::Wanted { |
| at, |
| expected, |
| found, |
| } => <span class="self">self</span>.error(at, ErrorKind::Wanted { expected, found }), |
| TokenError::MultilineStringKey(at) => <span class="self">self</span>.error(at, ErrorKind::MultilineStringKey), |
| } |
| } |
| |
| <span class="kw">fn </span>error(<span class="kw-2">&</span><span class="self">self</span>, at: usize, kind: ErrorKind) -> Error { |
| <span class="kw">let </span><span class="kw-2">mut </span>err = Error::from_kind(<span class="prelude-val">Some</span>(at), kind); |
| err.fix_linecol(|at| <span class="self">self</span>.to_linecol(at)); |
| err |
| } |
| |
| <span class="doccomment">/// Converts a byte offset from an error message to a (line, column) pair |
| /// |
| /// All indexes are 0-based. |
| </span><span class="kw">fn </span>to_linecol(<span class="kw-2">&</span><span class="self">self</span>, offset: usize) -> (usize, usize) { |
| <span class="kw">let </span><span class="kw-2">mut </span>cur = <span class="number">0</span>; |
| <span class="comment">// Use split_terminator instead of lines so that if there is a `\r`, |
| // it is included in the offset calculation. The `+1` values below |
| // account for the `\n`. |
| </span><span class="kw">for </span>(i, line) <span class="kw">in </span><span class="self">self</span>.input.split_terminator(<span class="string">'\n'</span>).enumerate() { |
| <span class="kw">if </span>cur + line.len() + <span class="number">1 </span>> offset { |
| <span class="kw">return </span>(i, offset - cur); |
| } |
| cur += line.len() + <span class="number">1</span>; |
| } |
| (<span class="self">self</span>.input.lines().count(), <span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Error { |
| <span class="doccomment">/// Produces a (line, column) pair of the position of the error if available |
| /// |
| /// All indexes are 0-based. |
| </span><span class="kw">pub fn </span>line_col(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><(usize, usize)> { |
| <span class="self">self</span>.inner.line.map(|line| (line, <span class="self">self</span>.inner.col)) |
| } |
| |
| <span class="kw">fn </span>from_kind(at: <span class="prelude-ty">Option</span><usize>, kind: ErrorKind) -> Error { |
| Error { |
| inner: Box::new(ErrorInner { |
| kind, |
| line: <span class="prelude-val">None</span>, |
| col: <span class="number">0</span>, |
| at, |
| message: String::new(), |
| key: Vec::new(), |
| }), |
| } |
| } |
| |
| <span class="kw">fn </span>custom(at: <span class="prelude-ty">Option</span><usize>, s: String) -> Error { |
| Error { |
| inner: Box::new(ErrorInner { |
| kind: ErrorKind::Custom, |
| line: <span class="prelude-val">None</span>, |
| col: <span class="number">0</span>, |
| at, |
| message: s, |
| key: Vec::new(), |
| }), |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>add_key_context(<span class="kw-2">&mut </span><span class="self">self</span>, key: <span class="kw-2">&</span>str) { |
| <span class="self">self</span>.inner.key.insert(<span class="number">0</span>, key.to_string()); |
| } |
| |
| <span class="kw">fn </span>fix_offset<F>(<span class="kw-2">&mut </span><span class="self">self</span>, f: F) |
| <span class="kw">where |
| </span>F: FnOnce() -> <span class="prelude-ty">Option</span><usize>, |
| { |
| <span class="comment">// An existing offset is always better positioned than anything we |
| // might want to add later. |
| </span><span class="kw">if </span><span class="self">self</span>.inner.at.is_none() { |
| <span class="self">self</span>.inner.at = f(); |
| } |
| } |
| |
| <span class="kw">fn </span>fix_linecol<F>(<span class="kw-2">&mut </span><span class="self">self</span>, f: F) |
| <span class="kw">where |
| </span>F: FnOnce(usize) -> (usize, usize), |
| { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(at) = <span class="self">self</span>.inner.at { |
| <span class="kw">let </span>(line, col) = f(at); |
| <span class="self">self</span>.inner.line = <span class="prelude-val">Some</span>(line); |
| <span class="self">self</span>.inner.col = col; |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>std::convert::From<Error> <span class="kw">for </span>std::io::Error { |
| <span class="kw">fn </span>from(e: Error) -> <span class="self">Self </span>{ |
| std::io::Error::new(std::io::ErrorKind::InvalidData, e.to_string()) |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>Error { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.inner.kind { |
| ErrorKind::UnexpectedEof => <span class="string">"unexpected eof encountered"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::InvalidCharInString(c) => <span class="macro">write!</span>( |
| f, |
| <span class="string">"invalid character in string: `{}`"</span>, |
| c.escape_default().collect::<String>() |
| )<span class="question-mark">?</span>, |
| ErrorKind::InvalidEscape(c) => <span class="macro">write!</span>( |
| f, |
| <span class="string">"invalid escape character in string: `{}`"</span>, |
| c.escape_default().collect::<String>() |
| )<span class="question-mark">?</span>, |
| ErrorKind::InvalidHexEscape(c) => <span class="macro">write!</span>( |
| f, |
| <span class="string">"invalid hex escape character in string: `{}`"</span>, |
| c.escape_default().collect::<String>() |
| )<span class="question-mark">?</span>, |
| ErrorKind::InvalidEscapeValue(c) => <span class="macro">write!</span>(f, <span class="string">"invalid escape value: `{}`"</span>, c)<span class="question-mark">?</span>, |
| ErrorKind::NewlineInString => <span class="string">"newline in string found"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::Unexpected(ch) => <span class="macro">write!</span>( |
| f, |
| <span class="string">"unexpected character found: `{}`"</span>, |
| ch.escape_default().collect::<String>() |
| )<span class="question-mark">?</span>, |
| ErrorKind::UnterminatedString => <span class="string">"unterminated string"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::NewlineInTableKey => <span class="string">"found newline in table key"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::Wanted { expected, found } => { |
| <span class="macro">write!</span>(f, <span class="string">"expected {}, found {}"</span>, expected, found)<span class="question-mark">? |
| </span>} |
| ErrorKind::NumberInvalid => <span class="string">"invalid number"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::DateInvalid => <span class="string">"invalid date"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::DuplicateTable(<span class="kw-2">ref </span>s) => { |
| <span class="macro">write!</span>(f, <span class="string">"redefinition of table `{}`"</span>, s)<span class="question-mark">?</span>; |
| } |
| ErrorKind::RedefineAsArray => <span class="string">"table redefined as array"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::EmptyTableKey => <span class="string">"empty table key found"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::MultilineStringKey => <span class="string">"multiline strings are not allowed for key"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::Custom => <span class="self">self</span>.inner.message.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::ExpectedTuple(l) => <span class="macro">write!</span>(f, <span class="string">"expected table with length {}"</span>, l)<span class="question-mark">?</span>, |
| ErrorKind::ExpectedTupleIndex { |
| expected, |
| <span class="kw-2">ref </span>found, |
| } => <span class="macro">write!</span>(f, <span class="string">"expected table key `{}`, but was `{}`"</span>, expected, found)<span class="question-mark">?</span>, |
| ErrorKind::ExpectedEmptyTable => <span class="string">"expected empty table"</span>.fmt(f)<span class="question-mark">?</span>, |
| ErrorKind::DottedKeyInvalidType => { |
| <span class="string">"dotted key attempted to extend non-table type"</span>.fmt(f)<span class="question-mark">? |
| </span>} |
| ErrorKind::UnexpectedKeys { |
| <span class="kw-2">ref </span>keys, |
| available, |
| } => <span class="macro">write!</span>( |
| f, |
| <span class="string">"unexpected keys in table: `{:?}`, available keys: `{:?}`"</span>, |
| keys, available |
| )<span class="question-mark">?</span>, |
| ErrorKind::UnquotedString => <span class="macro">write!</span>( |
| f, |
| <span class="string">"invalid TOML value, did you mean to use a quoted string?" |
| </span>)<span class="question-mark">?</span>, |
| } |
| |
| <span class="kw">if </span>!<span class="self">self</span>.inner.key.is_empty() { |
| <span class="macro">write!</span>(f, <span class="string">" for key `"</span>)<span class="question-mark">?</span>; |
| <span class="kw">for </span>(i, k) <span class="kw">in </span><span class="self">self</span>.inner.key.iter().enumerate() { |
| <span class="kw">if </span>i > <span class="number">0 </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"."</span>)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>(f, <span class="string">"{}"</span>, k)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>(f, <span class="string">"`"</span>)<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(line) = <span class="self">self</span>.inner.line { |
| <span class="macro">write!</span>(f, <span class="string">" at line {} column {}"</span>, line + <span class="number">1</span>, <span class="self">self</span>.inner.col + <span class="number">1</span>)<span class="question-mark">?</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl </span>error::Error <span class="kw">for </span>Error {} |
| |
| <span class="kw">impl </span>de::Error <span class="kw">for </span>Error { |
| <span class="kw">fn </span>custom<T: fmt::Display>(msg: T) -> Error { |
| Error::custom(<span class="prelude-val">None</span>, msg.to_string()) |
| } |
| } |
| |
| <span class="kw">enum </span>Line<<span class="lifetime">'a</span>> { |
| Table { |
| at: usize, |
| header: Header<<span class="lifetime">'a</span>>, |
| array: bool, |
| }, |
| KeyValue(Vec<(Span, Cow<<span class="lifetime">'a</span>, str>)>, Value<<span class="lifetime">'a</span>>), |
| } |
| |
| <span class="kw">struct </span>Header<<span class="lifetime">'a</span>> { |
| first: bool, |
| array: bool, |
| require_newline_after_table: bool, |
| tokens: Tokenizer<<span class="lifetime">'a</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Header<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>new(tokens: Tokenizer<<span class="lifetime">'a</span>>, array: bool, require_newline_after_table: bool) -> Header<<span class="lifetime">'a</span>> { |
| Header { |
| first: <span class="bool-val">true</span>, |
| array, |
| tokens, |
| require_newline_after_table, |
| } |
| } |
| |
| <span class="kw">fn </span>next(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><(Span, Cow<<span class="lifetime">'a</span>, str>)>, TokenError> { |
| <span class="self">self</span>.tokens.eat_whitespace()<span class="question-mark">?</span>; |
| |
| <span class="kw">if </span><span class="self">self</span>.first || <span class="self">self</span>.tokens.eat(Token::Period)<span class="question-mark">? </span>{ |
| <span class="self">self</span>.first = <span class="bool-val">false</span>; |
| <span class="self">self</span>.tokens.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="self">self</span>.tokens.table_key().map(<span class="prelude-val">Some</span>) |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.tokens.expect(Token::RightBracket)<span class="question-mark">?</span>; |
| <span class="kw">if </span><span class="self">self</span>.array { |
| <span class="self">self</span>.tokens.expect(Token::RightBracket)<span class="question-mark">?</span>; |
| } |
| |
| <span class="self">self</span>.tokens.eat_whitespace()<span class="question-mark">?</span>; |
| <span class="kw">if </span><span class="self">self</span>.require_newline_after_table && !<span class="self">self</span>.tokens.eat_comment()<span class="question-mark">? </span>{ |
| <span class="self">self</span>.tokens.eat_newline_or_eof()<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Value<<span class="lifetime">'a</span>> { |
| e: E<<span class="lifetime">'a</span>>, |
| start: usize, |
| end: usize, |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">enum </span>E<<span class="lifetime">'a</span>> { |
| Integer(i64), |
| Float(f64), |
| Boolean(bool), |
| String(Cow<<span class="lifetime">'a</span>, str>), |
| Datetime(<span class="kw-2">&</span><span class="lifetime">'a </span>str), |
| Array(Vec<Value<<span class="lifetime">'a</span>>>), |
| InlineTable(Vec<TablePair<<span class="lifetime">'a</span>>>), |
| DottedTable(Vec<TablePair<<span class="lifetime">'a</span>>>), |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> E<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>type_name(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| E::String(..) => <span class="string">"string"</span>, |
| E::Integer(..) => <span class="string">"integer"</span>, |
| E::Float(..) => <span class="string">"float"</span>, |
| E::Boolean(..) => <span class="string">"boolean"</span>, |
| E::Datetime(..) => <span class="string">"datetime"</span>, |
| E::Array(..) => <span class="string">"array"</span>, |
| E::InlineTable(..) => <span class="string">"inline table"</span>, |
| E::DottedTable(..) => <span class="string">"dotted table"</span>, |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="toml" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |