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| <span id="570">570</span> |
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| <span id="593">593</span> |
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| <span id="595">595</span> |
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| <span id="598">598</span> |
| <span id="599">599</span> |
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| <span id="610">610</span> |
| <span id="611">611</span> |
| <span id="612">612</span> |
| <span id="613">613</span> |
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| <span id="615">615</span> |
| <span id="616">616</span> |
| <span id="617">617</span> |
| <span id="618">618</span> |
| <span id="619">619</span> |
| <span id="620">620</span> |
| <span id="621">621</span> |
| <span id="622">622</span> |
| <span id="623">623</span> |
| <span id="624">624</span> |
| <span id="625">625</span> |
| <span id="626">626</span> |
| <span id="627">627</span> |
| <span id="628">628</span> |
| <span id="629">629</span> |
| <span id="630">630</span> |
| <span id="631">631</span> |
| <span id="632">632</span> |
| <span id="633">633</span> |
| <span id="634">634</span> |
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| <span id="669">669</span> |
| <span id="670">670</span> |
| <span id="671">671</span> |
| <span id="672">672</span> |
| <span id="673">673</span> |
| <span id="674">674</span> |
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| <span id="691">691</span> |
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| <span id="693">693</span> |
| <span id="694">694</span> |
| <span id="695">695</span> |
| <span id="696">696</span> |
| <span id="697">697</span> |
| <span id="698">698</span> |
| <span id="699">699</span> |
| <span id="700">700</span> |
| <span id="701">701</span> |
| <span id="702">702</span> |
| <span id="703">703</span> |
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| <span id="705">705</span> |
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| <span id="707">707</span> |
| <span id="708">708</span> |
| <span id="709">709</span> |
| <span id="710">710</span> |
| <span id="711">711</span> |
| <span id="712">712</span> |
| <span id="713">713</span> |
| <span id="714">714</span> |
| <span id="715">715</span> |
| <span id="716">716</span> |
| <span id="717">717</span> |
| <span id="718">718</span> |
| <span id="719">719</span> |
| <span id="720">720</span> |
| <span id="721">721</span> |
| <span id="722">722</span> |
| <span id="723">723</span> |
| <span id="724">724</span> |
| <span id="725">725</span> |
| <span id="726">726</span> |
| <span id="727">727</span> |
| <span id="728">728</span> |
| <span id="729">729</span> |
| <span id="730">730</span> |
| <span id="731">731</span> |
| <span id="732">732</span> |
| <span id="733">733</span> |
| <span id="734">734</span> |
| <span id="735">735</span> |
| <span id="736">736</span> |
| <span id="737">737</span> |
| <span id="738">738</span> |
| <span id="739">739</span> |
| <span id="740">740</span> |
| <span id="741">741</span> |
| <span id="742">742</span> |
| <span id="743">743</span> |
| <span id="744">744</span> |
| <span id="745">745</span> |
| <span id="746">746</span> |
| <span id="747">747</span> |
| <span id="748">748</span> |
| <span id="749">749</span> |
| <span id="750">750</span> |
| <span id="751">751</span> |
| <span id="752">752</span> |
| <span id="753">753</span> |
| <span id="754">754</span> |
| <span id="755">755</span> |
| <span id="756">756</span> |
| <span id="757">757</span> |
| <span id="758">758</span> |
| <span id="759">759</span> |
| <span id="760">760</span> |
| <span id="761">761</span> |
| <span id="762">762</span> |
| <span id="763">763</span> |
| <span id="764">764</span> |
| <span id="765">765</span> |
| <span id="766">766</span> |
| <span id="767">767</span> |
| <span id="768">768</span> |
| <span id="769">769</span> |
| <span id="770">770</span> |
| <span id="771">771</span> |
| <span id="772">772</span> |
| <span id="773">773</span> |
| <span id="774">774</span> |
| <span id="775">775</span> |
| <span id="776">776</span> |
| <span id="777">777</span> |
| <span id="778">778</span> |
| <span id="779">779</span> |
| <span id="780">780</span> |
| <span id="781">781</span> |
| <span id="782">782</span> |
| <span id="783">783</span> |
| <span id="784">784</span> |
| <span id="785">785</span> |
| <span id="786">786</span> |
| <span id="787">787</span> |
| <span id="788">788</span> |
| <span id="789">789</span> |
| <span id="790">790</span> |
| <span id="791">791</span> |
| <span id="792">792</span> |
| <span id="793">793</span> |
| <span id="794">794</span> |
| <span id="795">795</span> |
| <span id="796">796</span> |
| <span id="797">797</span> |
| <span id="798">798</span> |
| <span id="799">799</span> |
| <span id="800">800</span> |
| <span id="801">801</span> |
| <span id="802">802</span> |
| <span id="803">803</span> |
| <span id="804">804</span> |
| <span id="805">805</span> |
| <span id="806">806</span> |
| <span id="807">807</span> |
| <span id="808">808</span> |
| <span id="809">809</span> |
| <span id="810">810</span> |
| <span id="811">811</span> |
| <span id="812">812</span> |
| <span id="813">813</span> |
| <span id="814">814</span> |
| <span id="815">815</span> |
| <span id="816">816</span> |
| <span id="817">817</span> |
| <span id="818">818</span> |
| <span id="819">819</span> |
| <span id="820">820</span> |
| <span id="821">821</span> |
| <span id="822">822</span> |
| <span id="823">823</span> |
| <span id="824">824</span> |
| <span id="825">825</span> |
| <span id="826">826</span> |
| <span id="827">827</span> |
| <span id="828">828</span> |
| <span id="829">829</span> |
| <span id="830">830</span> |
| <span id="831">831</span> |
| <span id="832">832</span> |
| <span id="833">833</span> |
| <span id="834">834</span> |
| <span id="835">835</span> |
| <span id="836">836</span> |
| <span id="837">837</span> |
| <span id="838">838</span> |
| <span id="839">839</span> |
| <span id="840">840</span> |
| <span id="841">841</span> |
| <span id="842">842</span> |
| <span id="843">843</span> |
| <span id="844">844</span> |
| <span id="845">845</span> |
| <span id="846">846</span> |
| <span id="847">847</span> |
| <span id="848">848</span> |
| <span id="849">849</span> |
| <span id="850">850</span> |
| <span id="851">851</span> |
| <span id="852">852</span> |
| <span id="853">853</span> |
| <span id="854">854</span> |
| <span id="855">855</span> |
| <span id="856">856</span> |
| <span id="857">857</span> |
| <span id="858">858</span> |
| <span id="859">859</span> |
| <span id="860">860</span> |
| <span id="861">861</span> |
| <span id="862">862</span> |
| <span id="863">863</span> |
| <span id="864">864</span> |
| <span id="865">865</span> |
| <span id="866">866</span> |
| <span id="867">867</span> |
| <span id="868">868</span> |
| <span id="869">869</span> |
| <span id="870">870</span> |
| <span id="871">871</span> |
| <span id="872">872</span> |
| <span id="873">873</span> |
| <span id="874">874</span> |
| <span id="875">875</span> |
| <span id="876">876</span> |
| <span id="877">877</span> |
| <span id="878">878</span> |
| <span id="879">879</span> |
| <span id="880">880</span> |
| <span id="881">881</span> |
| <span id="882">882</span> |
| <span id="883">883</span> |
| <span id="884">884</span> |
| <span id="885">885</span> |
| <span id="886">886</span> |
| <span id="887">887</span> |
| <span id="888">888</span> |
| <span id="889">889</span> |
| <span id="890">890</span> |
| <span id="891">891</span> |
| <span id="892">892</span> |
| <span id="893">893</span> |
| <span id="894">894</span> |
| <span id="895">895</span> |
| <span id="896">896</span> |
| <span id="897">897</span> |
| <span id="898">898</span> |
| <span id="899">899</span> |
| <span id="900">900</span> |
| <span id="901">901</span> |
| <span id="902">902</span> |
| <span id="903">903</span> |
| <span id="904">904</span> |
| <span id="905">905</span> |
| <span id="906">906</span> |
| <span id="907">907</span> |
| <span id="908">908</span> |
| <span id="909">909</span> |
| <span id="910">910</span> |
| <span id="911">911</span> |
| <span id="912">912</span> |
| <span id="913">913</span> |
| <span id="914">914</span> |
| <span id="915">915</span> |
| <span id="916">916</span> |
| <span id="917">917</span> |
| <span id="918">918</span> |
| <span id="919">919</span> |
| <span id="920">920</span> |
| <span id="921">921</span> |
| <span id="922">922</span> |
| <span id="923">923</span> |
| <span id="924">924</span> |
| <span id="925">925</span> |
| <span id="926">926</span> |
| <span id="927">927</span> |
| <span id="928">928</span> |
| <span id="929">929</span> |
| <span id="930">930</span> |
| <span id="931">931</span> |
| <span id="932">932</span> |
| <span id="933">933</span> |
| <span id="934">934</span> |
| <span id="935">935</span> |
| <span id="936">936</span> |
| <span id="937">937</span> |
| <span id="938">938</span> |
| <span id="939">939</span> |
| <span id="940">940</span> |
| <span id="941">941</span> |
| <span id="942">942</span> |
| <span id="943">943</span> |
| <span id="944">944</span> |
| <span id="945">945</span> |
| <span id="946">946</span> |
| <span id="947">947</span> |
| <span id="948">948</span> |
| <span id="949">949</span> |
| <span id="950">950</span> |
| <span id="951">951</span> |
| <span id="952">952</span> |
| <span id="953">953</span> |
| <span id="954">954</span> |
| <span id="955">955</span> |
| <span id="956">956</span> |
| <span id="957">957</span> |
| <span id="958">958</span> |
| <span id="959">959</span> |
| <span id="960">960</span> |
| <span id="961">961</span> |
| <span id="962">962</span> |
| <span id="963">963</span> |
| <span id="964">964</span> |
| <span id="965">965</span> |
| <span id="966">966</span> |
| <span id="967">967</span> |
| <span id="968">968</span> |
| <span id="969">969</span> |
| <span id="970">970</span> |
| <span id="971">971</span> |
| <span id="972">972</span> |
| <span id="973">973</span> |
| <span id="974">974</span> |
| <span id="975">975</span> |
| <span id="976">976</span> |
| <span id="977">977</span> |
| <span id="978">978</span> |
| <span id="979">979</span> |
| <span id="980">980</span> |
| <span id="981">981</span> |
| <span id="982">982</span> |
| <span id="983">983</span> |
| <span id="984">984</span> |
| <span id="985">985</span> |
| <span id="986">986</span> |
| <span id="987">987</span> |
| <span id="988">988</span> |
| <span id="989">989</span> |
| <span id="990">990</span> |
| <span id="991">991</span> |
| <span id="992">992</span> |
| <span id="993">993</span> |
| <span id="994">994</span> |
| <span id="995">995</span> |
| <span id="996">996</span> |
| <span id="997">997</span> |
| <span id="998">998</span> |
| <span id="999">999</span> |
| <span id="1000">1000</span> |
| <span id="1001">1001</span> |
| <span id="1002">1002</span> |
| <span id="1003">1003</span> |
| <span id="1004">1004</span> |
| <span id="1005">1005</span> |
| <span id="1006">1006</span> |
| <span id="1007">1007</span> |
| <span id="1008">1008</span> |
| <span id="1009">1009</span> |
| <span id="1010">1010</span> |
| <span id="1011">1011</span> |
| <span id="1012">1012</span> |
| <span id="1013">1013</span> |
| <span id="1014">1014</span> |
| <span id="1015">1015</span> |
| <span id="1016">1016</span> |
| <span id="1017">1017</span> |
| <span id="1018">1018</span> |
| <span id="1019">1019</span> |
| <span id="1020">1020</span> |
| <span id="1021">1021</span> |
| <span id="1022">1022</span> |
| <span id="1023">1023</span> |
| <span id="1024">1024</span> |
| <span id="1025">1025</span> |
| <span id="1026">1026</span> |
| <span id="1027">1027</span> |
| <span id="1028">1028</span> |
| <span id="1029">1029</span> |
| <span id="1030">1030</span> |
| <span id="1031">1031</span> |
| </pre><pre class="rust"><code><span class="doccomment">//! Structured values. |
| |
| </span><span class="kw">use </span>std::fmt; |
| |
| <span class="kw">extern crate </span>value_bag; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| </span><span class="kw">extern crate </span>sval; |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| </span><span class="kw">extern crate </span>sval_ref; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_serde"</span>)] |
| </span><span class="kw">extern crate </span>serde; |
| |
| <span class="kw">use </span><span class="self">self</span>::value_bag::ValueBag; |
| |
| <span class="kw">pub use </span>kv::Error; |
| |
| <span class="doccomment">/// A type that can be converted into a [`Value`](struct.Value.html). |
| </span><span class="kw">pub trait </span>ToValue { |
| <span class="doccomment">/// Perform the conversion. |
| </span><span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value; |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, T> ToValue <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>T |
| <span class="kw">where |
| </span>T: ToValue + <span class="question-mark">?</span>Sized, |
| { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| (<span class="kw-2">**</span><span class="self">self</span>).to_value() |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> ToValue <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value { |
| inner: <span class="self">self</span>.inner.clone(), |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `std::fmt::Debug`. |
| </span><span class="attribute">#[macro_export] |
| </span><span class="macro">macro_rules! </span>as_debug { |
| (<span class="macro-nonterminal">$capture</span>:expr) => { |
| <span class="macro-nonterminal">$crate::kv::Value::from_debug</span>(<span class="kw-2">&</span><span class="macro-nonterminal">$capture</span>) |
| }; |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `std::fmt::Display`. |
| </span><span class="attribute">#[macro_export] |
| </span><span class="macro">macro_rules! </span>as_display { |
| (<span class="macro-nonterminal">$capture</span>:expr) => { |
| <span class="macro-nonterminal">$crate::kv::Value::from_display</span>(<span class="kw-2">&</span><span class="macro-nonterminal">$capture</span>) |
| }; |
| } |
| |
| <span class="doccomment">/// Get a value from an error. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| #[macro_export] |
| </span><span class="macro">macro_rules! </span>as_error { |
| (<span class="macro-nonterminal">$capture</span>:expr) => { |
| <span class="macro-nonterminal">$crate::kv::Value::from_dyn_error</span>(<span class="kw-2">&</span><span class="macro-nonterminal">$capture</span>) |
| }; |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_serde"</span>)] |
| </span><span class="doccomment">/// Get a value from a type implementing `serde::Serialize`. |
| </span><span class="attribute">#[macro_export] |
| </span><span class="macro">macro_rules! </span>as_serde { |
| (<span class="macro-nonterminal">$capture</span>:expr) => { |
| <span class="macro-nonterminal">$crate::kv::Value::from_serde</span>(<span class="kw-2">&</span><span class="macro-nonterminal">$capture</span>) |
| }; |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `sval::Value`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| #[macro_export] |
| </span><span class="macro">macro_rules! </span>as_sval { |
| (<span class="macro-nonterminal">$capture</span>:expr) => { |
| <span class="macro-nonterminal">$crate::kv::Value::from_sval</span>(<span class="kw-2">&</span><span class="macro-nonterminal">$capture</span>) |
| }; |
| } |
| |
| <span class="doccomment">/// A value in a structured key-value pair. |
| /// |
| /// # Capturing values |
| /// |
| /// There are a few ways to capture a value: |
| /// |
| /// - Using the `Value::capture_*` methods. |
| /// - Using the `Value::from_*` methods. |
| /// - Using the `ToValue` trait. |
| /// - Using the standard `From` trait. |
| /// |
| /// ## Using the `Value::capture_*` methods |
| /// |
| /// `Value` offers a few constructor methods that capture values of different kinds. |
| /// These methods require a `T: 'static` to support downcasting. |
| /// |
| /// ``` |
| /// use log::kv::Value; |
| /// |
| /// let value = Value::capture_debug(&42i32); |
| /// |
| /// assert_eq!(Some(42), value.to_i64()); |
| /// ``` |
| /// |
| /// ## Using the `Value::from_*` methods |
| /// |
| /// `Value` offers a few constructor methods that capture values of different kinds. |
| /// These methods don't require `T: 'static`, but can't support downcasting. |
| /// |
| /// ``` |
| /// use log::kv::Value; |
| /// |
| /// let value = Value::from_debug(&42i32); |
| /// |
| /// assert_eq!(None, value.to_i64()); |
| /// ``` |
| /// |
| /// ## Using the `ToValue` trait |
| /// |
| /// The `ToValue` trait can be used to capture values generically. |
| /// It's the bound used by `Source`. |
| /// |
| /// ``` |
| /// # use log::kv::ToValue; |
| /// let value = 42i32.to_value(); |
| /// |
| /// assert_eq!(Some(42), value.to_i64()); |
| /// ``` |
| /// |
| /// ``` |
| /// # use std::fmt::Debug; |
| /// use log::kv::ToValue; |
| /// |
| /// let value = (&42i32 as &dyn Debug).to_value(); |
| /// |
| /// assert_eq!(None, value.to_i64()); |
| /// ``` |
| /// |
| /// ## Using the standard `From` trait |
| /// |
| /// Standard types that implement `ToValue` also implement `From`. |
| /// |
| /// ``` |
| /// use log::kv::Value; |
| /// |
| /// let value = Value::from(42i32); |
| /// |
| /// assert_eq!(Some(42), value.to_i64()); |
| /// ``` |
| </span><span class="kw">pub struct </span>Value<<span class="lifetime">'v</span>> { |
| inner: ValueBag<<span class="lifetime">'v</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Value<<span class="lifetime">'v</span>> { |
| <span class="doccomment">/// Get a value from a type implementing `ToValue`. |
| </span><span class="kw">pub fn </span>from_any<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: ToValue, |
| { |
| value.to_value() |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `std::fmt::Debug`. |
| </span><span class="kw">pub fn </span>capture_debug<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: fmt::Debug + <span class="lifetime">'static</span>, |
| { |
| Value { |
| inner: ValueBag::capture_debug(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `std::fmt::Display`. |
| </span><span class="kw">pub fn </span>capture_display<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: fmt::Display + <span class="lifetime">'static</span>, |
| { |
| Value { |
| inner: ValueBag::capture_display(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from an error. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">pub fn </span>capture_error<T>(err: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: std::error::Error + <span class="lifetime">'static</span>, |
| { |
| Value { |
| inner: ValueBag::capture_error(err), |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_serde"</span>)] |
| </span><span class="doccomment">/// Get a value from a type implementing `serde::Serialize`. |
| </span><span class="kw">pub fn </span>capture_serde<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: <span class="self">self</span>::serde::Serialize + <span class="lifetime">'static</span>, |
| { |
| Value { |
| inner: ValueBag::capture_serde1(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `sval::Value`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| </span><span class="kw">pub fn </span>capture_sval<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: <span class="self">self</span>::sval::Value + <span class="lifetime">'static</span>, |
| { |
| Value { |
| inner: ValueBag::capture_sval2(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `std::fmt::Debug`. |
| </span><span class="kw">pub fn </span>from_debug<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: fmt::Debug, |
| { |
| Value { |
| inner: ValueBag::from_debug(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `std::fmt::Display`. |
| </span><span class="kw">pub fn </span>from_display<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: fmt::Display, |
| { |
| Value { |
| inner: ValueBag::from_display(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `serde::Serialize`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_serde"</span>)] |
| </span><span class="kw">pub fn </span>from_serde<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: <span class="self">self</span>::serde::Serialize, |
| { |
| Value { |
| inner: ValueBag::from_serde1(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a type implementing `sval::Value`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| </span><span class="kw">pub fn </span>from_sval<T>(value: <span class="kw-2">&</span><span class="lifetime">'v </span>T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: <span class="self">self</span>::sval::Value, |
| { |
| Value { |
| inner: ValueBag::from_sval2(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a dynamic `std::fmt::Debug`. |
| </span><span class="kw">pub fn </span>from_dyn_debug(value: <span class="kw-2">&</span><span class="lifetime">'v </span><span class="kw">dyn </span>fmt::Debug) -> <span class="self">Self </span>{ |
| Value { |
| inner: ValueBag::from_dyn_debug(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a dynamic `std::fmt::Display`. |
| </span><span class="kw">pub fn </span>from_dyn_display(value: <span class="kw-2">&</span><span class="lifetime">'v </span><span class="kw">dyn </span>fmt::Display) -> <span class="self">Self </span>{ |
| Value { |
| inner: ValueBag::from_dyn_display(value), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from a dynamic error. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">pub fn </span>from_dyn_error(err: <span class="kw-2">&</span><span class="lifetime">'v </span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>)) -> <span class="self">Self </span>{ |
| Value { |
| inner: ValueBag::from_dyn_error(err), |
| } |
| } |
| |
| <span class="doccomment">/// Get a value from an internal primitive. |
| </span><span class="kw">fn </span>from_value_bag<T>(value: T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: Into<ValueBag<<span class="lifetime">'v</span>>>, |
| { |
| Value { |
| inner: value.into(), |
| } |
| } |
| |
| <span class="doccomment">/// Check whether this value can be downcast to `T`. |
| </span><span class="kw">pub fn </span>is<T: <span class="lifetime">'static</span>>(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.inner.is::<T>() |
| } |
| |
| <span class="doccomment">/// Try downcast this value to `T`. |
| </span><span class="kw">pub fn </span>downcast_ref<T: <span class="lifetime">'static</span>>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>T> { |
| <span class="self">self</span>.inner.downcast_ref::<T>() |
| } |
| |
| <span class="doccomment">/// Inspect this value using a simple visitor. |
| </span><span class="kw">pub fn </span>visit(<span class="kw-2">&</span><span class="self">self</span>, visitor: <span class="kw">impl </span>Visit<<span class="lifetime">'v</span>>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">struct </span>Visitor<V>(V); |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>, V> value_bag::visit::Visit<<span class="lifetime">'v</span>> <span class="kw">for </span>Visitor<V> |
| <span class="kw">where |
| </span>V: Visit<<span class="lifetime">'v</span>>, |
| { |
| <span class="kw">fn </span>visit_any(<span class="kw-2">&mut </span><span class="self">self</span>, value: ValueBag) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0 |
| </span>.visit_any(Value { inner: value }) |
| .map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_u64(<span class="kw-2">&mut </span><span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_u64(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_i64(<span class="kw-2">&mut </span><span class="self">self</span>, value: i64) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_i64(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_u128(<span class="kw-2">&mut </span><span class="self">self</span>, value: u128) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_u128(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_i128(<span class="kw-2">&mut </span><span class="self">self</span>, value: i128) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_i128(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_f64(<span class="kw-2">&mut </span><span class="self">self</span>, value: f64) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_f64(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_bool(<span class="kw-2">&mut </span><span class="self">self</span>, value: bool) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_bool(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_str(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_borrowed_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span><span class="lifetime">'v </span>str) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_borrowed_str(value).map_err(Error::into_value) |
| } |
| |
| <span class="kw">fn </span>visit_char(<span class="kw-2">&mut </span><span class="self">self</span>, value: char) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_char(value).map_err(Error::into_value) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">fn </span>visit_error( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| err: <span class="kw-2">&</span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>), |
| ) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_error(err).map_err(Error::into_value) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">fn </span>visit_borrowed_error( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| err: <span class="kw-2">&</span><span class="lifetime">'v </span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>), |
| ) -> <span class="prelude-ty">Result</span><(), value_bag::Error> { |
| <span class="self">self</span>.<span class="number">0</span>.visit_borrowed_error(err).map_err(Error::into_value) |
| } |
| } |
| |
| <span class="self">self</span>.inner |
| .visit(<span class="kw-2">&mut </span>Visitor(visitor)) |
| .map_err(Error::from_value) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> fmt::Debug <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <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) -> fmt::Result { |
| fmt::Debug::fmt(<span class="kw-2">&</span><span class="self">self</span>.inner, f) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> fmt::Display <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <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) -> fmt::Result { |
| fmt::Display::fmt(<span class="kw-2">&</span><span class="self">self</span>.inner, f) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for dyn </span>fmt::Debug { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from_dyn_debug(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for dyn </span>fmt::Display { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from_dyn_display(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">impl </span>ToValue <span class="kw">for dyn </span>std::error::Error + <span class="lifetime">'static </span>{ |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from_dyn_error(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_serde"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'v</span>> <span class="self">self</span>::serde::Serialize <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>serialize<S>(<span class="kw-2">&</span><span class="self">self</span>, s: S) -> <span class="prelude-ty">Result</span><S::Ok, S::Error> |
| <span class="kw">where |
| </span>S: <span class="self">self</span>::serde::Serializer, |
| { |
| <span class="self">self</span>.inner.serialize(s) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'v</span>> <span class="self">self</span>::sval::Value <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>stream<<span class="lifetime">'sval</span>, S: <span class="self">self</span>::sval::Stream<<span class="lifetime">'sval</span>> + <span class="question-mark">?</span>Sized>( |
| <span class="kw-2">&</span><span class="lifetime">'sval </span><span class="self">self</span>, |
| stream: <span class="kw-2">&mut </span>S, |
| ) -> <span class="self">self</span>::sval::Result { |
| <span class="self">self</span>::sval::Value::stream(<span class="kw-2">&</span><span class="self">self</span>.inner, stream) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'v</span>> <span class="self">self</span>::sval_ref::ValueRef<<span class="lifetime">'v</span>> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>stream_ref<S: <span class="self">self</span>::sval::Stream<<span class="lifetime">'v</span>> + <span class="question-mark">?</span>Sized>(<span class="kw-2">&</span><span class="self">self</span>, stream: <span class="kw-2">&mut </span>S) -> <span class="self">self</span>::sval::Result { |
| <span class="self">self</span>::sval_ref::ValueRef::stream_ref(<span class="kw-2">&</span><span class="self">self</span>.inner, stream) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>str { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>u128 { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>i128 { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>std::num::NonZeroU128 { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>std::num::NonZeroI128 { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="kw-2">&</span><span class="lifetime">'v </span>str> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(value: <span class="kw-2">&</span><span class="lifetime">'v </span>str) -> <span class="self">Self </span>{ |
| Value::from_value_bag(value) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="kw-2">&</span><span class="lifetime">'v </span>u128> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(value: <span class="kw-2">&</span><span class="lifetime">'v </span>u128) -> <span class="self">Self </span>{ |
| Value::from_value_bag(value) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="kw-2">&</span><span class="lifetime">'v </span>i128> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(value: <span class="kw-2">&</span><span class="lifetime">'v </span>i128) -> <span class="self">Self </span>{ |
| Value::from_value_bag(value) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="kw-2">&</span><span class="lifetime">'v </span>std::num::NonZeroU128> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(v: <span class="kw-2">&</span><span class="lifetime">'v </span>std::num::NonZeroU128) -> Value<<span class="lifetime">'v</span>> { |
| <span class="comment">// SAFETY: `NonZeroU128` and `u128` have the same ABI |
| </span>Value::from_value_bag(<span class="kw">unsafe </span>{ std::mem::transmute::<<span class="kw-2">&</span>std::num::NonZeroU128, <span class="kw-2">&</span>u128>(v) }) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="kw-2">&</span><span class="lifetime">'v </span>std::num::NonZeroI128> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(v: <span class="kw-2">&</span><span class="lifetime">'v </span>std::num::NonZeroI128) -> Value<<span class="lifetime">'v</span>> { |
| <span class="comment">// SAFETY: `NonZeroI128` and `i128` have the same ABI |
| </span>Value::from_value_bag(<span class="kw">unsafe </span>{ std::mem::transmute::<<span class="kw-2">&</span>std::num::NonZeroI128, <span class="kw-2">&</span>i128>(v) }) |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>() { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from_value_bag(()) |
| } |
| } |
| |
| <span class="kw">impl</span><T> ToValue <span class="kw">for </span><span class="prelude-ty">Option</span><T> |
| <span class="kw">where |
| </span>T: ToValue, |
| { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| <span class="prelude-val">Some</span>(<span class="kw-2">ref </span>value) => value.to_value(), |
| <span class="prelude-val">None </span>=> Value::from_value_bag(()), |
| } |
| } |
| } |
| |
| <span class="macro">macro_rules! </span>impl_to_value_primitive { |
| ($(<span class="macro-nonterminal">$into_ty</span>:ty,)<span class="kw-2">*</span>) => { |
| $( |
| <span class="kw">impl </span>ToValue <span class="kw">for </span><span class="macro-nonterminal">$into_ty </span>{ |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="kw-2">*</span><span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="macro-nonterminal">$into_ty</span>> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(value: <span class="macro-nonterminal">$into_ty</span>) -> <span class="self">Self </span>{ |
| Value::from_value_bag(value) |
| } |
| } |
| )* |
| }; |
| } |
| |
| <span class="macro">macro_rules! </span>impl_to_value_nonzero_primitive { |
| ($(<span class="macro-nonterminal">$into_ty</span>:ident,)<span class="kw-2">*</span>) => { |
| $( |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>std::num::<span class="macro-nonterminal">$into_ty </span>{ |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="self">self</span>.get()) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<std::num::<span class="macro-nonterminal">$into_ty</span>> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(value: std::num::<span class="macro-nonterminal">$into_ty</span>) -> <span class="self">Self </span>{ |
| Value::from(value.get()) |
| } |
| } |
| )* |
| }; |
| } |
| |
| <span class="macro">macro_rules! </span>impl_value_to_primitive { |
| ($(<span class="attribute">#[doc = <span class="macro-nonterminal">$doc</span>:tt] </span><span class="macro-nonterminal">$into_name</span>:ident -> <span class="macro-nonterminal">$into_ty</span>:ty,)<span class="kw-2">*</span>) => { |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Value<<span class="lifetime">'v</span>> { |
| $( |
| <span class="attribute">#[doc = <span class="macro-nonterminal">$doc</span>] |
| </span><span class="kw">pub fn </span><span class="macro-nonterminal">$into_name</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="macro-nonterminal">$into_ty</span>> { |
| <span class="self">self</span>.inner.<span class="macro-nonterminal">$into_name</span>() |
| } |
| )* |
| } |
| } |
| } |
| |
| <span class="macro">impl_to_value_primitive!</span>[usize, u8, u16, u32, u64, isize, i8, i16, i32, i64, f32, f64, char, bool,]; |
| |
| <span class="attribute">#[rustfmt::skip] |
| </span><span class="macro">impl_to_value_nonzero_primitive!</span>[ |
| NonZeroUsize, NonZeroU8, NonZeroU16, NonZeroU32, NonZeroU64, |
| NonZeroIsize, NonZeroI8, NonZeroI16, NonZeroI32, NonZeroI64, |
| ]; |
| |
| <span class="macro">impl_value_to_primitive!</span>[ |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `u64`."</span>] |
| </span>to_u64 -> u64, |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `i64`."</span>] |
| </span>to_i64 -> i64, |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `u128`."</span>] |
| </span>to_u128 -> u128, |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `i128`."</span>] |
| </span>to_i128 -> i128, |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `f64`."</span>] |
| </span>to_f64 -> f64, |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `char`."</span>] |
| </span>to_char -> char, |
| <span class="attribute">#[doc = <span class="string">"Try convert this value into a `bool`."</span>] |
| </span>to_bool -> bool, |
| ]; |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Value<<span class="lifetime">'v</span>> { |
| <span class="doccomment">/// Try convert this value into an error. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">pub fn </span>to_borrowed_error(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>)> { |
| <span class="self">self</span>.inner.to_borrowed_error() |
| } |
| |
| <span class="doccomment">/// Try convert this value into a borrowed string. |
| </span><span class="kw">pub fn </span>to_borrowed_str(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>str> { |
| <span class="self">self</span>.inner.to_borrowed_str() |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">mod </span>std_support { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span>std::borrow::Cow; |
| |
| <span class="kw">impl</span><T> ToValue <span class="kw">for </span>Box<T> |
| <span class="kw">where |
| </span>T: ToValue + <span class="question-mark">?</span>Sized, |
| { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| (<span class="kw-2">**</span><span class="self">self</span>).to_value() |
| } |
| } |
| |
| <span class="kw">impl </span>ToValue <span class="kw">for </span>String { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="kw-2">&**</span><span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> ToValue <span class="kw">for </span>Cow<<span class="lifetime">'v</span>, str> { |
| <span class="kw">fn </span>to_value(<span class="kw-2">&</span><span class="self">self</span>) -> Value { |
| Value::from(<span class="kw-2">&**</span><span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Value<<span class="lifetime">'v</span>> { |
| <span class="doccomment">/// Try convert this value into a string. |
| </span><span class="kw">pub fn </span>to_str(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Cow<str>> { |
| <span class="self">self</span>.inner.to_str() |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> From<<span class="kw-2">&</span><span class="lifetime">'v </span>String> <span class="kw">for </span>Value<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>from(v: <span class="kw-2">&</span><span class="lifetime">'v </span>String) -> <span class="self">Self </span>{ |
| Value::from(<span class="kw-2">&**</span>v) |
| } |
| } |
| } |
| |
| <span class="doccomment">/// A visitor for a `Value`. |
| </span><span class="kw">pub trait </span>Visit<<span class="lifetime">'v</span>> { |
| <span class="doccomment">/// Visit a `Value`. |
| /// |
| /// This is the only required method on `Visit` and acts as a fallback for any |
| /// more specific methods that aren't overridden. |
| /// The `Value` may be formatted using its `fmt::Debug` or `fmt::Display` implementation, |
| /// or serialized using its `sval::Value` or `serde::Serialize` implementation. |
| </span><span class="kw">fn </span>visit_any(<span class="kw-2">&mut </span><span class="self">self</span>, value: Value) -> <span class="prelude-ty">Result</span><(), Error>; |
| |
| <span class="doccomment">/// Visit an unsigned integer. |
| </span><span class="kw">fn </span>visit_u64(<span class="kw-2">&mut </span><span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(value.into()) |
| } |
| |
| <span class="doccomment">/// Visit a signed integer. |
| </span><span class="kw">fn </span>visit_i64(<span class="kw-2">&mut </span><span class="self">self</span>, value: i64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(value.into()) |
| } |
| |
| <span class="doccomment">/// Visit a big unsigned integer. |
| </span><span class="kw">fn </span>visit_u128(<span class="kw-2">&mut </span><span class="self">self</span>, value: u128) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any((<span class="kw-2">&</span>value).into()) |
| } |
| |
| <span class="doccomment">/// Visit a big signed integer. |
| </span><span class="kw">fn </span>visit_i128(<span class="kw-2">&mut </span><span class="self">self</span>, value: i128) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any((<span class="kw-2">&</span>value).into()) |
| } |
| |
| <span class="doccomment">/// Visit a floating point. |
| </span><span class="kw">fn </span>visit_f64(<span class="kw-2">&mut </span><span class="self">self</span>, value: f64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(value.into()) |
| } |
| |
| <span class="doccomment">/// Visit a boolean. |
| </span><span class="kw">fn </span>visit_bool(<span class="kw-2">&mut </span><span class="self">self</span>, value: bool) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(value.into()) |
| } |
| |
| <span class="doccomment">/// Visit a string. |
| </span><span class="kw">fn </span>visit_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(value.into()) |
| } |
| |
| <span class="doccomment">/// Visit a string. |
| </span><span class="kw">fn </span>visit_borrowed_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span><span class="lifetime">'v </span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_str(value) |
| } |
| |
| <span class="doccomment">/// Visit a Unicode character. |
| </span><span class="kw">fn </span>visit_char(<span class="kw-2">&mut </span><span class="self">self</span>, value: char) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">let </span><span class="kw-2">mut </span>b = [<span class="number">0</span>; <span class="number">4</span>]; |
| <span class="self">self</span>.visit_str(<span class="kw-2">&*</span>value.encode_utf8(<span class="kw-2">&mut </span>b)) |
| } |
| |
| <span class="doccomment">/// Visit an error. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">fn </span>visit_error(<span class="kw-2">&mut </span><span class="self">self</span>, err: <span class="kw-2">&</span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>)) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(Value::from_dyn_error(err)) |
| } |
| |
| <span class="doccomment">/// Visit an error. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">fn </span>visit_borrowed_error( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| err: <span class="kw-2">&</span><span class="lifetime">'v </span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>), |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.visit_any(Value::from_dyn_error(err)) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, <span class="lifetime">'v</span>, T: <span class="question-mark">?</span>Sized> Visit<<span class="lifetime">'v</span>> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>T |
| <span class="kw">where |
| </span>T: Visit<<span class="lifetime">'v</span>>, |
| { |
| <span class="kw">fn </span>visit_any(<span class="kw-2">&mut </span><span class="self">self</span>, value: Value) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_any(value) |
| } |
| |
| <span class="kw">fn </span>visit_u64(<span class="kw-2">&mut </span><span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_u64(value) |
| } |
| |
| <span class="kw">fn </span>visit_i64(<span class="kw-2">&mut </span><span class="self">self</span>, value: i64) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_i64(value) |
| } |
| |
| <span class="kw">fn </span>visit_u128(<span class="kw-2">&mut </span><span class="self">self</span>, value: u128) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_u128(value) |
| } |
| |
| <span class="kw">fn </span>visit_i128(<span class="kw-2">&mut </span><span class="self">self</span>, value: i128) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_i128(value) |
| } |
| |
| <span class="kw">fn </span>visit_f64(<span class="kw-2">&mut </span><span class="self">self</span>, value: f64) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_f64(value) |
| } |
| |
| <span class="kw">fn </span>visit_bool(<span class="kw-2">&mut </span><span class="self">self</span>, value: bool) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_bool(value) |
| } |
| |
| <span class="kw">fn </span>visit_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_str(value) |
| } |
| |
| <span class="kw">fn </span>visit_borrowed_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span><span class="lifetime">'v </span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_borrowed_str(value) |
| } |
| |
| <span class="kw">fn </span>visit_char(<span class="kw-2">&mut </span><span class="self">self</span>, value: char) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_char(value) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">fn </span>visit_error(<span class="kw-2">&mut </span><span class="self">self</span>, err: <span class="kw-2">&</span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>)) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_error(err) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="kw">fn </span>visit_borrowed_error( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| err: <span class="kw-2">&</span><span class="lifetime">'v </span>(<span class="kw">dyn </span>std::error::Error + <span class="lifetime">'static</span>), |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| (<span class="kw-2">**</span><span class="self">self</span>).visit_borrowed_error(err) |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>tests { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">super</span>::value_bag::test::TestToken <span class="kw">as </span>Token; |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Value<<span class="lifetime">'v</span>> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>to_token(<span class="kw-2">&</span><span class="self">self</span>) -> Token { |
| <span class="self">self</span>.inner.to_test_token() |
| } |
| } |
| |
| <span class="kw">fn </span>unsigned() -> <span class="kw">impl </span>Iterator<Item = Value<<span class="lifetime">'static</span>>> { |
| <span class="macro">vec!</span>[ |
| Value::from(<span class="number">8u8</span>), |
| Value::from(<span class="number">16u16</span>), |
| Value::from(<span class="number">32u32</span>), |
| Value::from(<span class="number">64u64</span>), |
| Value::from(<span class="number">1usize</span>), |
| Value::from(std::num::NonZeroU8::new(<span class="number">8</span>).unwrap()), |
| Value::from(std::num::NonZeroU16::new(<span class="number">16</span>).unwrap()), |
| Value::from(std::num::NonZeroU32::new(<span class="number">32</span>).unwrap()), |
| Value::from(std::num::NonZeroU64::new(<span class="number">64</span>).unwrap()), |
| Value::from(std::num::NonZeroUsize::new(<span class="number">1</span>).unwrap()), |
| ] |
| .into_iter() |
| } |
| |
| <span class="kw">fn </span>signed() -> <span class="kw">impl </span>Iterator<Item = Value<<span class="lifetime">'static</span>>> { |
| <span class="macro">vec!</span>[ |
| Value::from(-<span class="number">8i8</span>), |
| Value::from(-<span class="number">16i16</span>), |
| Value::from(-<span class="number">32i32</span>), |
| Value::from(-<span class="number">64i64</span>), |
| Value::from(-<span class="number">1isize</span>), |
| Value::from(std::num::NonZeroI8::new(-<span class="number">8</span>).unwrap()), |
| Value::from(std::num::NonZeroI16::new(-<span class="number">16</span>).unwrap()), |
| Value::from(std::num::NonZeroI32::new(-<span class="number">32</span>).unwrap()), |
| Value::from(std::num::NonZeroI64::new(-<span class="number">64</span>).unwrap()), |
| Value::from(std::num::NonZeroIsize::new(-<span class="number">1</span>).unwrap()), |
| ] |
| .into_iter() |
| } |
| |
| <span class="kw">fn </span>float() -> <span class="kw">impl </span>Iterator<Item = Value<<span class="lifetime">'static</span>>> { |
| <span class="macro">vec!</span>[Value::from(<span class="number">32.32f32</span>), Value::from(<span class="number">64.64f64</span>)].into_iter() |
| } |
| |
| <span class="kw">fn </span>bool() -> <span class="kw">impl </span>Iterator<Item = Value<<span class="lifetime">'static</span>>> { |
| <span class="macro">vec!</span>[Value::from(<span class="bool-val">true</span>), Value::from(<span class="bool-val">false</span>)].into_iter() |
| } |
| |
| <span class="kw">fn </span>str() -> <span class="kw">impl </span>Iterator<Item = Value<<span class="lifetime">'static</span>>> { |
| <span class="macro">vec!</span>[Value::from(<span class="string">"a string"</span>), Value::from(<span class="string">"a loong string"</span>)].into_iter() |
| } |
| |
| <span class="kw">fn </span>char() -> <span class="kw">impl </span>Iterator<Item = Value<<span class="lifetime">'static</span>>> { |
| <span class="macro">vec!</span>[Value::from(<span class="string">'a'</span>), Value::from(<span class="string">'⛰'</span>)].into_iter() |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_capture_fmt() { |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42u64</span>), Value::capture_display(<span class="kw-2">&</span><span class="number">42</span>).to_u64()); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42u64</span>), Value::capture_debug(<span class="kw-2">&</span><span class="number">42</span>).to_u64()); |
| |
| <span class="macro">assert!</span>(Value::from_display(<span class="kw-2">&</span><span class="number">42</span>).to_u64().is_none()); |
| <span class="macro">assert!</span>(Value::from_debug(<span class="kw-2">&</span><span class="number">42</span>).to_u64().is_none()); |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| #[test] |
| </span><span class="kw">fn </span>test_capture_error() { |
| <span class="kw">let </span>err = std::io::Error::from(std::io::ErrorKind::Other); |
| |
| <span class="macro">assert!</span>(Value::capture_error(<span class="kw-2">&</span>err).to_borrowed_error().is_some()); |
| <span class="macro">assert!</span>(Value::from_dyn_error(<span class="kw-2">&</span>err).to_borrowed_error().is_some()); |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_serde"</span>)] |
| #[test] |
| </span><span class="kw">fn </span>test_capture_serde() { |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42u64</span>), Value::capture_serde(<span class="kw-2">&</span><span class="number">42</span>).to_u64()); |
| |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42u64</span>), Value::from_serde(<span class="kw-2">&</span><span class="number">42</span>).to_u64()); |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_sval"</span>)] |
| #[test] |
| </span><span class="kw">fn </span>test_capture_sval() { |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42u64</span>), Value::capture_sval(<span class="kw-2">&</span><span class="number">42</span>).to_u64()); |
| |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42u64</span>), Value::from_sval(<span class="kw-2">&</span><span class="number">42</span>).to_u64()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_to_value_display() { |
| <span class="macro">assert_eq!</span>(<span class="number">42u64</span>.to_value().to_string(), <span class="string">"42"</span>); |
| <span class="macro">assert_eq!</span>(<span class="number">42i64</span>.to_value().to_string(), <span class="string">"42"</span>); |
| <span class="macro">assert_eq!</span>(<span class="number">42.01f64</span>.to_value().to_string(), <span class="string">"42.01"</span>); |
| <span class="macro">assert_eq!</span>(<span class="bool-val">true</span>.to_value().to_string(), <span class="string">"true"</span>); |
| <span class="macro">assert_eq!</span>(<span class="string">'a'</span>.to_value().to_string(), <span class="string">"a"</span>); |
| <span class="macro">assert_eq!</span>(<span class="string">"a loong string"</span>.to_value().to_string(), <span class="string">"a loong string"</span>); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="bool-val">true</span>).to_value().to_string(), <span class="string">"true"</span>); |
| <span class="macro">assert_eq!</span>(().to_value().to_string(), <span class="string">"None"</span>); |
| <span class="macro">assert_eq!</span>(Option::None::<bool>.to_value().to_string(), <span class="string">"None"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_to_value_structured() { |
| <span class="macro">assert_eq!</span>(<span class="number">42u64</span>.to_value().to_token(), Token::U64(<span class="number">42</span>)); |
| <span class="macro">assert_eq!</span>(<span class="number">42i64</span>.to_value().to_token(), Token::I64(<span class="number">42</span>)); |
| <span class="macro">assert_eq!</span>(<span class="number">42.01f64</span>.to_value().to_token(), Token::F64(<span class="number">42.01</span>)); |
| <span class="macro">assert_eq!</span>(<span class="bool-val">true</span>.to_value().to_token(), Token::Bool(<span class="bool-val">true</span>)); |
| <span class="macro">assert_eq!</span>(<span class="string">'a'</span>.to_value().to_token(), Token::Char(<span class="string">'a'</span>)); |
| <span class="macro">assert_eq!</span>( |
| <span class="string">"a loong string"</span>.to_value().to_token(), |
| Token::Str(<span class="string">"a loong string"</span>.into()) |
| ); |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="bool-val">true</span>).to_value().to_token(), Token::Bool(<span class="bool-val">true</span>)); |
| <span class="macro">assert_eq!</span>(().to_value().to_token(), Token::None); |
| <span class="macro">assert_eq!</span>(Option::None::<bool>.to_value().to_token(), Token::None); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_to_number() { |
| <span class="kw">for </span>v <span class="kw">in </span>unsigned() { |
| <span class="macro">assert!</span>(v.to_u64().is_some()); |
| <span class="macro">assert!</span>(v.to_i64().is_some()); |
| } |
| |
| <span class="kw">for </span>v <span class="kw">in </span>signed() { |
| <span class="macro">assert!</span>(v.to_i64().is_some()); |
| } |
| |
| <span class="kw">for </span>v <span class="kw">in </span>unsigned().chain(signed()).chain(float()) { |
| <span class="macro">assert!</span>(v.to_f64().is_some()); |
| } |
| |
| <span class="kw">for </span>v <span class="kw">in </span>bool().chain(str()).chain(char()) { |
| <span class="macro">assert!</span>(v.to_u64().is_none()); |
| <span class="macro">assert!</span>(v.to_i64().is_none()); |
| <span class="macro">assert!</span>(v.to_f64().is_none()); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_to_str() { |
| <span class="kw">for </span>v <span class="kw">in </span>str() { |
| <span class="macro">assert!</span>(v.to_borrowed_str().is_some()); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="macro">assert!</span>(v.to_str().is_some()); |
| } |
| |
| <span class="kw">let </span>short_lived = String::from(<span class="string">"short lived"</span>); |
| <span class="kw">let </span>v = Value::from(<span class="kw-2">&*</span>short_lived); |
| |
| <span class="macro">assert!</span>(v.to_borrowed_str().is_some()); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="macro">assert!</span>(v.to_str().is_some()); |
| |
| <span class="kw">for </span>v <span class="kw">in </span>unsigned().chain(signed()).chain(float()).chain(bool()) { |
| <span class="macro">assert!</span>(v.to_borrowed_str().is_none()); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"kv_unstable_std"</span>)] |
| </span><span class="macro">assert!</span>(v.to_str().is_none()); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_to_bool() { |
| <span class="kw">for </span>v <span class="kw">in </span>bool() { |
| <span class="macro">assert!</span>(v.to_bool().is_some()); |
| } |
| |
| <span class="kw">for </span>v <span class="kw">in </span>unsigned() |
| .chain(signed()) |
| .chain(float()) |
| .chain(str()) |
| .chain(char()) |
| { |
| <span class="macro">assert!</span>(v.to_bool().is_none()); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_to_char() { |
| <span class="kw">for </span>v <span class="kw">in </span>char() { |
| <span class="macro">assert!</span>(v.to_char().is_some()); |
| } |
| |
| <span class="kw">for </span>v <span class="kw">in </span>unsigned() |
| .chain(signed()) |
| .chain(float()) |
| .chain(str()) |
| .chain(bool()) |
| { |
| <span class="macro">assert!</span>(v.to_char().is_none()); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_downcast_ref() { |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Foo(u64); |
| |
| <span class="kw">let </span>v = Value::capture_debug(<span class="kw-2">&</span>Foo(<span class="number">42</span>)); |
| |
| <span class="macro">assert!</span>(v.is::<Foo>()); |
| <span class="macro">assert_eq!</span>(<span class="number">42u64</span>, v.downcast_ref::<Foo>().expect(<span class="string">"invalid downcast"</span>).<span class="number">0</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_visit_integer() { |
| <span class="kw">struct </span>Extract(<span class="prelude-ty">Option</span><u64>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Visit<<span class="lifetime">'v</span>> <span class="kw">for </span>Extract { |
| <span class="kw">fn </span>visit_any(<span class="kw-2">&mut </span><span class="self">self</span>, value: Value) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="macro">unimplemented!</span>(<span class="string">"unexpected value: {:?}"</span>, value) |
| } |
| |
| <span class="kw">fn </span>visit_u64(<span class="kw-2">&mut </span><span class="self">self</span>, value: u64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.<span class="number">0 </span>= <span class="prelude-val">Some</span>(value); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>extract = Extract(<span class="prelude-val">None</span>); |
| Value::from(<span class="number">42u64</span>).visit(<span class="kw-2">&mut </span>extract).unwrap(); |
| |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="number">42</span>), extract.<span class="number">0</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_visit_borrowed_str() { |
| <span class="kw">struct </span>Extract<<span class="lifetime">'v</span>>(<span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'v </span>str>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'v</span>> Visit<<span class="lifetime">'v</span>> <span class="kw">for </span>Extract<<span class="lifetime">'v</span>> { |
| <span class="kw">fn </span>visit_any(<span class="kw-2">&mut </span><span class="self">self</span>, value: Value) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="macro">unimplemented!</span>(<span class="string">"unexpected value: {:?}"</span>, value) |
| } |
| |
| <span class="kw">fn </span>visit_borrowed_str(<span class="kw-2">&mut </span><span class="self">self</span>, value: <span class="kw-2">&</span><span class="lifetime">'v </span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="self">self</span>.<span class="number">0 </span>= <span class="prelude-val">Some</span>(value); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>extract = Extract(<span class="prelude-val">None</span>); |
| |
| <span class="kw">let </span>short_lived = String::from(<span class="string">"A short-lived string"</span>); |
| Value::from(<span class="kw-2">&*</span>short_lived).visit(<span class="kw-2">&mut </span>extract).unwrap(); |
| |
| <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"A short-lived string"</span>), extract.<span class="number">0</span>); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="log" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
