| <!doctype html><html lang=en-US dir=ltr class="docs-wrapper plugin-docs plugin-id-default docs-version-1.2.0 docs-doc-page docs-doc-id-guide/rust/configuration" data-has-hydrated=false><head><meta charset=UTF-8><meta name=generator content="Docusaurus v3.10.1"><title data-rh=true>Configuration | Apache Fory™</title><meta data-rh=true name=viewport content="width=device-width, initial-scale=1.0"/><meta data-rh=true property=og:url content=https://fory.apache.org/docs/1.2.0/guide/rust/configuration /><meta data-rh=true property=og:locale content=en_US /><meta data-rh=true property=og:locale:alternate content=zh_CN /><meta data-rh=true name=docusaurus_locale content=en-US /><meta data-rh=true name=docsearch:language content=en-US /><meta data-rh=true http-equiv=Content-Security-Policy content="frame-src 'self' https://ghbtns.com/;"/><meta data-rh=true property=og:image content=https://fory.apache.org/img/logo.png /><meta data-rh=true property=og:image:width content=1500 /><meta data-rh=true property=og:image:height content=1500 /><meta data-rh=true name=twitter:card content=summary_large_image /><meta data-rh=true name=twitter:image content=https://fory.apache.org/img/logo.png /><meta data-rh=true name=docusaurus_version content=1.2.0 /><meta data-rh=true name=docusaurus_tag content=docs-default-1.2.0 /><meta data-rh=true name=docsearch:version content=1.2.0 /><meta data-rh=true name=docsearch:docusaurus_tag content=docs-default-1.2.0 /><meta data-rh=true property=og:title content="Configuration | Apache Fory™"/><meta data-rh=true name=description content="This page covers Rust Fory instance configuration. Fory::builder().xlang(true).build() selects xlang mode with"/><meta data-rh=true property=og:description content="This page covers Rust Fory instance configuration. Fory::builder().xlang(true).build() selects xlang mode with"/><link data-rh=true rel=icon href=/img/favicon.ico /><link data-rh=true rel=canonical href=https://fory.apache.org/docs/1.2.0/guide/rust/configuration /><link data-rh=true rel=alternate href=https://fory.apache.org/docs/1.2.0/guide/rust/configuration hreflang=en-US /><link data-rh=true rel=alternate href=https://fory.apache.org/zh-CN/docs/1.2.0/guide/rust/configuration hreflang=zh-CN /><link data-rh=true rel=alternate href=https://fory.apache.org/docs/1.2.0/guide/rust/configuration hreflang=x-default /><script data-rh=true type=application/ld+json>{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":"https://fory.apache.org/docs/1.2.0/guide/rust/","name":"Rust","position":1},{"@type":"ListItem","item":"https://fory.apache.org/docs/1.2.0/guide/rust/configuration","name":"Configuration","position":2}]}</script><link rel=alternate type=application/rss+xml href=/blog/rss.xml title="Apache Fory™ RSS Feed"><link rel=alternate type=application/atom+xml href=/blog/atom.xml title="Apache Fory™ Atom Feed"><script type=text/javascript>"fury.apache.org"===window.location.host&&(window.location.href="https://fory.apache.org"),function(){for(var o=window.location.pathname,a=["guide","introduction","start"],n=0;n<a.length;n++){var t=a[n],i=RegExp("^((?:/[a-z]{2}-[A-Z]{2})?/docs(?:/(?:next|[0-9]+.[0-9]+))?)/docs/"+t+"(/.*)?$"),c=o.match(i);if(c){var r=c[1]+"/"+t+(c[2]||"");window.location.replace(r+window.location.search+window.location.hash);return}}}()</script><link rel=stylesheet href=/assets/css/styles.3a1edaa1.css /><script src=/assets/js/runtime~main.605b11b1.js defer></script><script src=/assets/js/main.283fea4b.js defer></script></head><body><svg style="display: none;"><defs> |
| <symbol id=theme-svg-external-link viewBox="0 0 24 24"><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></symbol> |
| </defs></svg> |
| <script>!function(){var t=function(){try{return new URLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}}()||function(){try{return window.localStorage.getItem("theme")}catch(t){}}();document.documentElement.setAttribute("data-theme",t||"light"),document.documentElement.setAttribute("data-theme-choice",t||"light")}(),function(){try{for(var[t,e]of new URLSearchParams(window.location.search).entries())if(t.startsWith("docusaurus-data-")){var a=t.replace("docusaurus-data-","data-");document.documentElement.setAttribute(a,e)}}catch(t){}}()</script><div id=__docusaurus><div role=region aria-label="Skip to main content"><a class=skipToContent_fXgn href=#__docusaurus_skipToContent_fallback>Skip to main content</a></div><nav aria-label=Main class="theme-layout-navbar navbar navbar--fixed-top"><div class=navbar__inner><div class="theme-layout-navbar-left navbar__items"><button aria-label="Toggle navigation bar" aria-expanded=false class="navbar__toggle clean-btn" type=button><svg width=30 height=30 viewBox="0 0 30 30" aria-hidden=true><path stroke=currentColor stroke-linecap=round stroke-miterlimit=10 stroke-width=2 d="M4 7h22M4 15h22M4 23h22"/></svg></button><a class=navbar__brand href=/><div class=navbar__logo><img src=/img/fory-logo-light.png alt="Apache Fory™ Logo" class="themedComponent_mlkZ themedComponent--light_NVdE"/><img src=/img/fory-logo-dark.png alt="Apache Fory™ Logo" class="themedComponent_mlkZ themedComponent--dark_xIcU"/></div><b class="navbar__title text--truncate"></b></a><a aria-current=page class="navbar__item navbar__link navbar__link--active" href=/docs/1.2.0/introduction/overview>Docs</a><a class="navbar__item navbar__link" href=/docs/1.2.0/specification/xlang_serialization_spec>Specification</a><a class="navbar__item navbar__link" href=/docs/1.2.0/community/>Community</a><a class="navbar__item navbar__link" href=/user>Users</a><a class="navbar__item navbar__link" href=/download>Download</a><a class="navbar__item navbar__link" href=/blog>Blog</a></div><div class="theme-layout-navbar-right navbar__items navbar__items--right"><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a href=# aria-haspopup=true aria-expanded=false role=button class=navbar__link>ASF</a><ul class=dropdown__menu><li><a href=https://www.apache.org/ target=_blank rel="noopener noreferrer" class=dropdown__link>Foundation</a><li><a href=https://www.apache.org/licenses/ target=_blank rel="noopener noreferrer" class=dropdown__link>License</a><li><a href=https://www.apache.org/events/current-event.html target=_blank rel="noopener noreferrer" class=dropdown__link>Events</a><li><a href=https://privacy.apache.org/policies/privacy-policy-public.html target=_blank rel="noopener noreferrer" class=dropdown__link>Privacy</a><li><a href=https://www.apache.org/security/ target=_blank rel="noopener noreferrer" class=dropdown__link>Security</a><li><a href=https://www.apache.org/foundation/sponsorship.html target=_blank rel="noopener noreferrer" class=dropdown__link>Sponsorship</a><li><a href=https://www.apache.org/foundation/thanks.html target=_blank rel="noopener noreferrer" class=dropdown__link>Thanks</a><li><a href=https://www.apache.org/foundation/policies/conduct.html target=_blank rel="noopener noreferrer" class=dropdown__link>Code of Conduct</a></ul></div><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a class=navbar__link aria-haspopup=true aria-expanded=false role=button href=/docs/1.2.0/guide/rust/configuration>1.2.0</a><ul class=dropdown__menu><li><a class=dropdown__link href=/docs/next/guide/rust/configuration>dev</a><li><a class=dropdown__link href=/docs/guide/rust/configuration>1.3.0</a><li><a aria-current=page class="dropdown__link dropdown__link--active" href=/docs/1.2.0/guide/rust/configuration>1.2.0</a><li><a class=dropdown__link href=/docs/1.1.0/guide/rust/configuration>1.1.0</a><li><a class=dropdown__link href=/docs/1.0.0/guide/rust/configuration>1.0.0</a><li><a class=dropdown__link href=/docs/0.17/guide/rust/configuration>0.17</a><li><a class=dropdown__link href=/docs/0.16/guide/rust/configuration>0.16</a><li><a class=dropdown__link href=/docs/0.15/guide/rust/configuration>0.15</a><li><a class=dropdown__link href=/docs/0.14/guide/rust/configuration>0.14</a><li><a class=dropdown__link href=/docs/0.13/introduction/overview>0.13</a><li><a class=dropdown__link href=/docs/0.12/introduction/overview>0.12</a><li><a class=dropdown__link href=/docs/0.11/introduction/overview>0.11</a><li><a class=dropdown__link href=/docs/0.10/introduction/overview>0.10</a></ul></div><a href=https://github.com/apache/fory target=_blank rel="noopener noreferrer" class="navbar__item navbar__link header-github-link" aria-label="GitHub repository"></a><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a href=# aria-haspopup=true aria-expanded=false role=button class=navbar__link><svg viewBox="0 0 24 24" width=20 height=20 aria-hidden=true class=iconLanguage_nlXk><path fill=currentColor d="M12.87 15.07l-2.54-2.51.03-.03c1.74-1.94 2.98-4.17 3.71-6.53H17V4h-7V2H8v2H1v1.99h11.17C11.5 7.92 10.44 9.75 9 11.35 8.07 10.32 7.3 9.19 6.69 8h-2c.73 1.63 1.73 3.17 2.98 4.56l-5.09 5.02L4 19l5-5 3.11 3.11.76-2.04zM18.5 10h-2L12 22h2l1.12-3h4.75L21 22h2l-4.5-12zm-2.62 7l1.62-4.33L19.12 17h-3.24z"/></svg>English</a><ul class=dropdown__menu><li><a href=/docs/1.2.0/guide/rust/configuration target=_self rel="noopener noreferrer" class="dropdown__link dropdown__link--active" lang=en-US>English</a><li><a href=/zh-CN/docs/1.2.0/guide/rust/configuration target=_self rel="noopener noreferrer" class=dropdown__link lang=zh-CN>简体中文</a></ul></div><div class="toggle_vylO colorModeToggle_DEke"><button class="clean-btn toggleButton_gllP toggleButtonDisabled_aARS" type=button disabled title="system mode" aria-label="Switch between dark and light mode (currently system mode)"><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_g3eP lightToggleIcon_pyhR"><path fill=currentColor d="M12,9c1.65,0,3,1.35,3,3s-1.35,3-3,3s-3-1.35-3-3S10.35,9,12,9 M12,7c-2.76,0-5,2.24-5,5s2.24,5,5,5s5-2.24,5-5 S14.76,7,12,7L12,7z M2,13l2,0c0.55,0,1-0.45,1-1s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S1.45,13,2,13z M20,13l2,0c0.55,0,1-0.45,1-1 s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S19.45,13,20,13z M11,2v2c0,0.55,0.45,1,1,1s1-0.45,1-1V2c0-0.55-0.45-1-1-1S11,1.45,11,2z M11,20v2c0,0.55,0.45,1,1,1s1-0.45,1-1v-2c0-0.55-0.45-1-1-1C11.45,19,11,19.45,11,20z M5.99,4.58c-0.39-0.39-1.03-0.39-1.41,0 c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0s0.39-1.03,0-1.41L5.99,4.58z M18.36,16.95 c-0.39-0.39-1.03-0.39-1.41,0c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0c0.39-0.39,0.39-1.03,0-1.41 L18.36,16.95z M19.42,5.99c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06c-0.39,0.39-0.39,1.03,0,1.41 s1.03,0.39,1.41,0L19.42,5.99z M7.05,18.36c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06 c-0.39,0.39-0.39,1.03,0,1.41s1.03,0.39,1.41,0L7.05,18.36z"/></svg><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_g3eP darkToggleIcon_wfgR"><path fill=currentColor d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z M12,3c-4.97,0-9,4.03-9,9s4.03,9,9,9s9-4.03,9-9c0-0.46-0.04-0.92-0.1-1.36 c-0.98,1.37-2.58,2.26-4.4,2.26c-2.98,0-5.4-2.42-5.4-5.4c0-1.81,0.89-3.42,2.26-4.4C12.92,3.04,12.46,3,12,3L12,3z"/></svg><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_g3eP systemToggleIcon_QzmC"><path fill=currentColor d="m12 21c4.971 0 9-4.029 9-9s-4.029-9-9-9-9 4.029-9 9 4.029 9 9 9zm4.95-13.95c1.313 1.313 2.05 3.093 2.05 4.95s-0.738 3.637-2.05 4.95c-1.313 1.313-3.093 2.05-4.95 2.05v-14c1.857 0 3.637 0.737 4.95 2.05z"/></svg></button></div><div class=navbarSearchContainer_Bca1><div class=navbar__search><span aria-label="expand searchbar" role=button class=search-icon tabindex=0></span><input id=search_input_react type=search placeholder=Loading... aria-label=Search class="navbar__search-input search-bar" disabled/></div></div></div></div><div role=presentation class=navbar-sidebar__backdrop></div></nav><div id=__docusaurus_skipToContent_fallback class="theme-layout-main main-wrapper mainWrapper_z2l0"><div class=docsWrapper_hBAB><button aria-label="Scroll back to top" class="clean-btn theme-back-to-top-button backToTopButton_sjWU" type=button></button><div class=docRoot_UBD9><aside class="theme-doc-sidebar-container docSidebarContainer_YfHR"><div class=sidebarViewport_aRkj><div class=sidebar_njMd><nav aria-label="Docs sidebar" class="menu thin-scrollbar menu_SIkG"><ul class="theme-doc-sidebar-menu menu__list"><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=true href=/docs/1.2.0/introduction/overview><span title=Introduction class=categoryLinkLabel_W154>Introduction</span></a></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/introduction/overview><span title=Overview class=linkLabel_WmDU>Overview</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/introduction/features><span title=Features class=linkLabel_WmDU>Features</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/introduction/benchmark><span title=Benchmark class=linkLabel_WmDU>Benchmark</span></a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=true href=/docs/1.2.0/start/install><span title=Start class=categoryLinkLabel_W154>Start</span></a></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/start/install><span title=Install class=linkLabel_WmDU>Install</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/start/usage><span title=Usage class=linkLabel_WmDU>Usage</span></a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/1.2.0/compiler/><span title="Schema IDL & Compiler" class=categoryLinkLabel_W154>Schema IDL & Compiler</span></a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret menu__link--active" role=button aria-expanded=true href=/docs/1.2.0/guide/java/><span title=Guide class=categoryLinkLabel_W154>Guide</span></a></div><ul class=menu__list><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/java/><span title=Java class=categoryLinkLabel_W154>Java</span></a><button aria-label="Expand sidebar category 'Java'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/python/><span title=Python class=categoryLinkLabel_W154>Python</span></a><button aria-label="Expand sidebar category 'Python'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--active" tabindex=0 href=/docs/1.2.0/guide/rust/><span title=Rust class=categoryLinkLabel_W154>Rust</span></a><button aria-label="Collapse sidebar category 'Rust'" aria-expanded=true type=button class="clean-btn menu__caret"></button></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/basic_serialization><span title="Basic Serialization" class=linkLabel_WmDU>Basic Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/xlang_serialization><span title="Xlang Serialization" class=linkLabel_WmDU>Xlang Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/native_serialization><span title="Native Serialization" class=linkLabel_WmDU>Native Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class="menu__link menu__link--active" aria-current=page tabindex=0 href=/docs/1.2.0/guide/rust/configuration><span title=Configuration class=linkLabel_WmDU>Configuration</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/type_registration><span title="Type Registration" class=linkLabel_WmDU>Type Registration</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/schema_metadata><span title="Schema Metadata" class=linkLabel_WmDU>Schema Metadata</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/references><span title="Shared & Circular References" class=linkLabel_WmDU>Shared & Circular References</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/polymorphism><span title="Trait Object Serialization" class=linkLabel_WmDU>Trait Object Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/schema_evolution><span title="Schema Evolution" class=linkLabel_WmDU>Schema Evolution</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/custom_serializers><span title="Custom Serializers" class=linkLabel_WmDU>Custom Serializers</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/row_format><span title="Row Format" class=linkLabel_WmDU>Row Format</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/grpc_support><span title="gRPC Support" class=linkLabel_WmDU>gRPC Support</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/1.2.0/guide/rust/troubleshooting><span title=Troubleshooting class=linkLabel_WmDU>Troubleshooting</span></a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/cpp/><span title=C++ class=categoryLinkLabel_W154>C++</span></a><button aria-label="Expand sidebar category 'C++'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/go/><span title=Go class=categoryLinkLabel_W154>Go</span></a><button aria-label="Expand sidebar category 'Go'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/javascript/><span title=JavaScript class=categoryLinkLabel_W154>JavaScript</span></a><button aria-label="Expand sidebar category 'JavaScript'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/csharp/><span title=C# class=categoryLinkLabel_W154>C#</span></a><button aria-label="Expand sidebar category 'C#'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/swift/><span title=Swift class=categoryLinkLabel_W154>Swift</span></a><button aria-label="Expand sidebar category 'Swift'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/dart/><span title=Dart class=categoryLinkLabel_W154>Dart</span></a><button aria-label="Expand sidebar category 'Dart'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/scala/><span title=Scala class=categoryLinkLabel_W154>Scala</span></a><button aria-label="Expand sidebar category 'Scala'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/kotlin/><span title=Kotlin class=categoryLinkLabel_W154>Kotlin</span></a><button aria-label="Expand sidebar category 'Kotlin'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/1.2.0/guide/xlang/><span title="Cross Language" class=categoryLinkLabel_W154>Cross Language</span></a><button aria-label="Expand sidebar category 'Cross Language'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div></ul></ul></nav></div></div></aside><main class=docMainContainer_TBSr><div class="container padding-top--md padding-bottom--lg"><div class=row><div class="col docItemCol_VOVn"><div class="theme-doc-version-banner alert alert--warning margin-bottom--md" role=alert><div>This is documentation for <!-- -->Apache Fory™<!-- --> <b>1.2.0</b>, which is no longer actively maintained.</div><div class=margin-top--md>For up-to-date documentation, see the <b><a href=/docs/guide/rust/configuration>latest version</a></b> (<!-- -->1.3.0<!-- -->).</div></div><div class=docItemContainer_Djhp><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label=Breadcrumbs><ul class=breadcrumbs><li class=breadcrumbs__item><a aria-label="Home page" class=breadcrumbs__link href=/><svg viewBox="0 0 24 24" class=breadcrumbHomeIcon_YNFT><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill=currentColor /></svg></a><li class=breadcrumbs__item><span class=breadcrumbs__link>Guide</span><li class=breadcrumbs__item><a class=breadcrumbs__link href=/docs/1.2.0/guide/rust/><span>Rust</span></a><li class="breadcrumbs__item breadcrumbs__item--active"><span class=breadcrumbs__link>Configuration</span></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: 1.2.0</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type=button class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Configuration</h1></header><p>This page covers Rust Fory instance configuration. <code>Fory::builder().xlang(true).build()</code> selects xlang mode with |
| compatible schema evolution. Native mode is selected explicitly with <code>.xlang(false)</code> and also defaults to |
| compatible schema evolution.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=wire-modes>Wire Modes<a href=#wire-modes class=hash-link aria-label="Direct link to Wire Modes" title="Direct link to Wire Modes" translate=no></a></h2> |
| <p>Apache Fory™ supports two serialization modes:</p> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=xlang-mode>Xlang Mode<a href=#xlang-mode class=hash-link aria-label="Direct link to Xlang Mode" title="Direct link to Xlang Mode" translate=no></a></h3> |
| <p>Xlang mode is selected with <code>.xlang(true)</code> and uses the cross-language wire |
| format. Compatible schema evolution is the xlang default and is recommended for |
| cross-language services because schemas can diverge more easily across |
| languages:</p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <p>Use <code>.compatible(false)</code> for xlang payloads only when every reader and writer always uses the same schema and you want faster serialization and smaller size. Use it only after verifying that every language uses that schema, or when native types are generated from Fory schema IDL:</p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>compatible</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=native-mode>Native Mode<a href=#native-mode class=hash-link aria-label="Direct link to Native Mode" title="Direct link to Native Mode" translate=no></a></h3> |
| <p>For Rust-only payloads, select native mode explicitly:</p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <p>Compatible mode is enabled by default. Set <code>.compatible(false)</code> only when every reader and |
| writer always uses the same Rust schema and you want faster serialization and smaller size.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=configuration>Configuration<a href=#configuration class=hash-link aria-label="Direct link to Configuration" title="Direct link to Configuration" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=maximum-dynamic-object-nesting-depth>Maximum Dynamic Object Nesting Depth<a href=#maximum-dynamic-object-nesting-depth class=hash-link aria-label="Direct link to Maximum Dynamic Object Nesting Depth" title="Direct link to Maximum Dynamic Object Nesting Depth" translate=no></a></h3> |
| <p>Apache Fory™ provides protection against stack overflow from deeply nested dynamic objects during deserialization. By default, the maximum nesting depth is set to 5 levels for trait objects and containers.</p> |
| <p><strong>Default configuration:</strong></p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// max_dyn_depth = 5</span><br/></div></code></pre></div></div> |
| <p><strong>Custom depth limit:</strong></p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>max_dyn_depth</span><span class="token punctuation" style=color:#393A34>(</span><span class="token number" style=color:#36acaa>10</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// Allow up to 10 levels</span><br/></div></code></pre></div></div> |
| <p><strong>When to adjust:</strong></p> |
| <ul> |
| <li class=""><strong>Increase</strong>: For legitimate deeply nested data structures</li> |
| <li class=""><strong>Decrease</strong>: For stricter security requirements or shallow data structures</li> |
| </ul> |
| <p><strong>Protected types:</strong></p> |
| <ul> |
| <li class=""><code>Box<dyn Any></code>, <code>Rc<dyn Any></code>, <code>Arc<dyn Any + Send + Sync></code></li> |
| <li class=""><code>Box<dyn Trait></code>, <code>Rc<dyn Trait></code>, <code>Arc<dyn Trait></code> (trait objects)</li> |
| <li class=""><code>RcWeak<T></code>, <code>ArcWeak<T></code></li> |
| <li class="">Collection types (Vec, HashMap, HashSet)</li> |
| <li class="">Nested struct types in Compatible mode</li> |
| </ul> |
| <p>Note: Static data types (non-dynamic types) are secure by nature and not subject to depth limits, as their structure is known at compile time.</p> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=explicit-xlang-examples>Explicit Xlang Examples<a href=#explicit-xlang-examples class=hash-link aria-label="Direct link to Explicit Xlang Examples" title="Direct link to Explicit Xlang Examples" translate=no></a></h3> |
| <p>Set <code>.xlang(true)</code> explicitly for xlang serialization examples:</p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=builder-pattern>Builder Pattern<a href=#builder-pattern class=hash-link aria-label="Direct link to Builder Pattern" title="Direct link to Builder Pattern" translate=no></a></h2> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>use</span><span class="token plain"> </span><span class="token namespace" style=opacity:0.7>fory</span><span class="token namespace punctuation" style=opacity:0.7;color:#393A34>::</span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Default xlang configuration</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Native mode for Rust-only traffic</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Same-schema optimization for Rust-only payloads</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>compatible</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Custom depth limit</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>max_dyn_depth</span><span class="token punctuation" style=color:#393A34>(</span><span class="token number" style=color:#36acaa>10</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Combined configuration</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>max_dyn_depth</span><span class="token punctuation" style=color:#393A34>(</span><span class="token number" style=color:#36acaa>10</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=configuration-summary>Configuration Summary<a href=#configuration-summary class=hash-link aria-label="Direct link to Configuration Summary" title="Direct link to Configuration Summary" translate=no></a></h2> |
| <table><thead><tr><th>Option<th>Description<th>Default<tbody><tr><td><code>compatible(bool)</code><td>Enable schema evolution<td><code>true</code><tr><td><code>xlang(bool)</code><td>Use xlang mode<td><code>true</code><tr><td><code>max_dyn_depth(u32)</code><td>Maximum nesting depth for dynamic types<td><code>5</code></table> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=compatible-mode>Compatible Mode<a href=#compatible-mode class=hash-link aria-label="Direct link to Compatible Mode" title="Direct link to Compatible Mode" translate=no></a></h2> |
| <p>Compatible mode is enabled by default for both xlang and native mode. Keep this default when Rust |
| structs may evolve independently, when services deploy separately, or when xlang schemas are written |
| by hand in different languages.</p> |
| <p>Use <code>.compatible(false)</code> only when the schema used to deserialize every payload is always the same as the schema used to serialize it and you want faster serialization and smaller size. For xlang payloads, use <code>.compatible(false)</code> only after verifying that every language uses the same schema, or when native types are generated from Fory schema IDL.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=security>Security<a href=#security class=hash-link aria-label="Direct link to Security" title="Direct link to Security" translate=no></a></h2> |
| <p>Security-related configuration:</p> |
| <ul> |
| <li class="">Register application structs and trait-object implementations before deserializing untrusted |
| payloads.</li> |
| <li class="">Use <code>max_dyn_depth(...)</code> to reject unexpectedly deep dynamic object graphs.</li> |
| <li class="">Prefer concrete typed fields over <code>dyn Any</code> or broad trait-object fields for untrusted input.</li> |
| </ul> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=related-topics>Related Topics<a href=#related-topics class=hash-link aria-label="Direct link to Related Topics" title="Direct link to Related Topics" translate=no></a></h2> |
| <ul> |
| <li class=""><a class="" href=/docs/1.2.0/guide/rust/basic_serialization>Basic Serialization</a> - Using configured Fory</li> |
| <li class=""><a class="" href=/docs/1.2.0/guide/rust/schema_evolution>Schema Evolution</a> - Compatible mode details</li> |
| <li class=""><a class="" href=/docs/1.2.0/guide/rust/xlang_serialization>Xlang Serialization</a> - xlang mode</li> |
| </ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="row margin-top--sm theme-doc-footer-edit-meta-row"><div class="col noPrint_WFHX"><a href=https://github.com/apache/fory-site/tree/main/docs/guide/rust/configuration.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" class=iconEdit_Z9Sw aria-hidden=true><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"/></g></svg>Edit this page</a></div><div class="col lastUpdated_JAkA"></div></div></footer></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href=/docs/1.2.0/guide/rust/native_serialization><div class=pagination-nav__sublabel>Previous</div><div class=pagination-nav__label>Native Serialization</div></a><a class="pagination-nav__link pagination-nav__link--next" href=/docs/1.2.0/guide/rust/type_registration><div class=pagination-nav__sublabel>Next</div><div class=pagination-nav__label>Type Registration</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href=#wire-modes class="table-of-contents__link toc-highlight">Wire Modes</a><ul><li><a href=#xlang-mode class="table-of-contents__link toc-highlight">Xlang Mode</a><li><a href=#native-mode class="table-of-contents__link toc-highlight">Native Mode</a></ul><li><a href=#configuration class="table-of-contents__link toc-highlight">Configuration</a><ul><li><a href=#maximum-dynamic-object-nesting-depth class="table-of-contents__link toc-highlight">Maximum Dynamic Object Nesting Depth</a><li><a href=#explicit-xlang-examples class="table-of-contents__link toc-highlight">Explicit Xlang Examples</a></ul><li><a href=#builder-pattern class="table-of-contents__link toc-highlight">Builder Pattern</a><li><a href=#configuration-summary class="table-of-contents__link toc-highlight">Configuration Summary</a><li><a href=#compatible-mode class="table-of-contents__link toc-highlight">Compatible Mode</a><li><a href=#security class="table-of-contents__link toc-highlight">Security</a><li><a href=#related-topics class="table-of-contents__link toc-highlight">Related Topics</a></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Community</div><ul class="footer__items clean-list"><li class=footer__item><a href=https://lists.apache.org/list.html?dev@fory.apache.org target=_blank rel="noopener noreferrer" class=footer__link-item>Mailing list<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a><li class=footer__item><a href=https://join.slack.com/t/fory-project/shared_invite/zt-1u8soj4qc-ieYEu7ciHOqA2mo47llS8A target=_blank rel="noopener noreferrer" class=footer__link-item>Slack<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a><li class=footer__item><a href=https://twitter.com/ApacheFory target=_blank rel="noopener noreferrer" class=footer__link-item>Twitter<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Docs</div><ul class="footer__items clean-list"><li class=footer__item><a class=footer__link-item href=/docs/start/install>Install</a><li class=footer__item><a class=footer__link-item href=/docs/start/usage>Usage</a><li class=footer__item><a class=footer__link-item href=/docs/introduction/benchmark>Benchmark</a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Repositories</div><ul class="footer__items clean-list"><li class=footer__item><a href=https://github.com/apache/fory target=_blank rel="noopener noreferrer" class=footer__link-item>Apache Fory™<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a><li class=footer__item><a href=https://github.com/apache/fory-site target=_blank rel="noopener noreferrer" class=footer__link-item>Website<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a></ul></div></div><div class="footer__bottom text--center"><div class=margin-bottom--sm><a href=https://apache.org/ rel="noopener noreferrer" class=footerLogoLink_BH7S><img src=/img/asf_logo.svg alt="ASF Logo" class="footer__logo themedComponent_mlkZ themedComponent--light_NVdE" width=200 /><img src=/img/asf_logo.svg alt="ASF Logo" class="footer__logo themedComponent_mlkZ themedComponent--dark_xIcU" width=200 /></a></div><div class=footer__copyright><div> |
| <p> |
| Copyright © 2026 The Apache Software Foundation, Licensed under the Apache License, Version 2.0. <br/> |
| Apache Fory, Fory, Apache, the Apache Logo and the Apache Fory logo are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries. |
| </p> |
| </div></div></div></div></footer></div></body> |
