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[Fizz] Fork Fizz instruction set for inline script and external runti…
…me (#25862) ~~[Fizz] Duplicate completeBoundaryWithStyles to not reference globals~~ ## Summary Follow-up / cleanup PR to #25437 - `completeBoundaryWithStylesInlineLocals` is used by the Fizz external runtime, which bundles together all Fizz instruction functions (and is able to reference / rename `completeBoundary` and `resourceMap` as locals). - `completeBoundaryWithStylesInlineGlobals` is used by the Fizz inline script writer, which sends Fizz instruction functions on an as-needed basis. This version needs to reference `completeBoundary($RC)` and `resourceMap($RM)` as globals. Ideally, Closure would take care of inlining a shared implementation, but I couldn't figure out a zero-overhead inline due to lack of an `@inline` compiler directive. It seems that Closure thinks that a shared `completeBoundaryWithStyles` is too large and will always keep it as a separate function. I've also tried currying / writing a higher order function (`getCompleteBoundaryWithStyles`) with no luck ## How did you test this change? - generated Fizz inline instructions should be unchanged - bundle size for unstable_external_runtime should be slightly smaller (due to lack of globals) - `ReactDOMFizzServer-test.js` and `ReactDOMFloat-test.js` should be unaffected
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2 changes: 1 addition & 1 deletion
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...ct-dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInlineClientRenderBoundary.js
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.../react-dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInlineCompleteBoundary.js
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...-bindings/src/server/fizz-instruction-set/ReactDOMFizzInlineCompleteBoundaryWithStyles.js
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...s/react-dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInlineCompleteSegment.js
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113 changes: 113 additions & 0 deletions
113
...dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInstructionSetExternalRuntime.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| /* eslint-disable dot-notation */ | ||
|
|
||
| // Instruction set for the Fizz external runtime | ||
|
|
||
| import { | ||
| clientRenderBoundary, | ||
| completeBoundary, | ||
| completeSegment, | ||
| LOADED, | ||
| ERRORED, | ||
| } from './ReactDOMFizzInstructionSetShared'; | ||
|
|
||
| export {clientRenderBoundary, completeBoundary, completeSegment}; | ||
|
|
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| const resourceMap = new Map(); | ||
|
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| // This function is almost identical to the version used by inline scripts | ||
| // (ReactDOMFizzInstructionSetInlineSource), with the exception of how we read | ||
| // completeBoundary and resourceMap | ||
| export function completeBoundaryWithStyles( | ||
| suspenseBoundaryID, | ||
| contentID, | ||
| styles, | ||
| ) { | ||
| const precedences = new Map(); | ||
| const thisDocument = document; | ||
| let lastResource, node; | ||
|
|
||
| // Seed the precedence list with existing resources | ||
| const nodes = thisDocument.querySelectorAll( | ||
| 'link[data-precedence],style[data-precedence]', | ||
| ); | ||
| for (let i = 0; (node = nodes[i++]); ) { | ||
| precedences.set(node.dataset['precedence'], (lastResource = node)); | ||
| } | ||
|
|
||
| let i = 0; | ||
| const dependencies = []; | ||
| let style, href, precedence, attr, loadingState, resourceEl; | ||
|
|
||
| function setStatus(s) { | ||
| this['s'] = s; | ||
| } | ||
|
|
||
| while ((style = styles[i++])) { | ||
| let j = 0; | ||
| href = style[j++]; | ||
| // We check if this resource is already in our resourceMap and reuse it if so. | ||
| // If it is already loaded we don't return it as a depenendency since there is nothing | ||
| // to wait for | ||
| loadingState = resourceMap.get(href); | ||
| if (loadingState) { | ||
| if (loadingState['s'] !== 'l') { | ||
| dependencies.push(loadingState); | ||
| } | ||
| continue; | ||
| } | ||
|
|
||
| // We construct our new resource element, looping over remaining attributes if any | ||
| // setting them to the Element. | ||
| resourceEl = thisDocument.createElement('link'); | ||
| resourceEl.href = href; | ||
| resourceEl.rel = 'stylesheet'; | ||
| resourceEl.dataset['precedence'] = precedence = style[j++]; | ||
| while ((attr = style[j++])) { | ||
| resourceEl.setAttribute(attr, style[j++]); | ||
| } | ||
|
|
||
| // We stash a pending promise in our map by href which will resolve or reject | ||
| // when the underlying resource loads or errors. We add it to the dependencies | ||
| // array to be returned. | ||
| loadingState = resourceEl['_p'] = new Promise((re, rj) => { | ||
| resourceEl.onload = re; | ||
| resourceEl.onerror = rj; | ||
| }); | ||
| loadingState.then( | ||
| setStatus.bind(loadingState, LOADED), | ||
| setStatus.bind(loadingState, ERRORED), | ||
| ); | ||
| resourceMap.set(href, loadingState); | ||
| dependencies.push(loadingState); | ||
|
|
||
| // The prior style resource is the last one placed at a given | ||
| // precedence or the last resource itself which may be null. | ||
| // We grab this value and then update the last resource for this | ||
| // precedence to be the inserted element, updating the lastResource | ||
| // pointer if needed. | ||
| const prior = precedences.get(precedence) || lastResource; | ||
| if (prior === lastResource) { | ||
| lastResource = resourceEl; | ||
| } | ||
| precedences.set(precedence, resourceEl); | ||
|
|
||
| // Finally, we insert the newly constructed instance at an appropriate location | ||
| // in the Document. | ||
| if (prior) { | ||
| prior.parentNode.insertBefore(resourceEl, prior.nextSibling); | ||
| } else { | ||
| const head = thisDocument.head; | ||
| head.insertBefore(resourceEl, head.firstChild); | ||
| } | ||
| } | ||
|
|
||
| Promise.all(dependencies).then( | ||
| completeBoundary.bind(null, suspenseBoundaryID, contentID, ''), | ||
| completeBoundary.bind( | ||
| null, | ||
| suspenseBoundaryID, | ||
| contentID, | ||
| 'Resource failed to load', | ||
| ), | ||
| ); | ||
| } |
116 changes: 116 additions & 0 deletions
116
...ct-dom-bindings/src/server/fizz-instruction-set/ReactDOMFizzInstructionSetInlineSource.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /* eslint-disable dot-notation */ | ||
|
|
||
| // Instruction set for Fizz inline scripts. | ||
| // DO NOT DIRECTLY IMPORT THIS FILE. This is the source for the compiled and | ||
| // minified code in ReactDOMFizzInstructionSetInlineCodeStrings. | ||
|
|
||
| import { | ||
| clientRenderBoundary, | ||
| completeBoundary, | ||
| completeSegment, | ||
| LOADED, | ||
| ERRORED, | ||
| } from './ReactDOMFizzInstructionSetShared'; | ||
|
|
||
| export {clientRenderBoundary, completeBoundary, completeSegment}; | ||
|
|
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| // This function is almost identical to the version used by the external | ||
| // runtime (ReactDOMFizzInstructionSetExternalRuntime), with the exception of | ||
| // how we read completeBoundaryImpl and resourceMap | ||
| export function completeBoundaryWithStyles( | ||
| suspenseBoundaryID, | ||
| contentID, | ||
| styles, | ||
| ) { | ||
| const completeBoundaryImpl = window['$RC']; | ||
| const resourceMap = window['$RM']; | ||
|
|
||
| const precedences = new Map(); | ||
| const thisDocument = document; | ||
| let lastResource, node; | ||
|
|
||
| // Seed the precedence list with existing resources | ||
| const nodes = thisDocument.querySelectorAll( | ||
| 'link[data-precedence],style[data-precedence]', | ||
| ); | ||
| for (let i = 0; (node = nodes[i++]); ) { | ||
| precedences.set(node.dataset['precedence'], (lastResource = node)); | ||
| } | ||
|
|
||
| let i = 0; | ||
| const dependencies = []; | ||
| let style, href, precedence, attr, loadingState, resourceEl; | ||
|
|
||
| function setStatus(s) { | ||
| this['s'] = s; | ||
| } | ||
|
|
||
| while ((style = styles[i++])) { | ||
| let j = 0; | ||
| href = style[j++]; | ||
| // We check if this resource is already in our resourceMap and reuse it if so. | ||
| // If it is already loaded we don't return it as a depenendency since there is nothing | ||
| // to wait for | ||
| loadingState = resourceMap.get(href); | ||
| if (loadingState) { | ||
| if (loadingState['s'] !== 'l') { | ||
| dependencies.push(loadingState); | ||
| } | ||
| continue; | ||
| } | ||
|
|
||
| // We construct our new resource element, looping over remaining attributes if any | ||
| // setting them to the Element. | ||
| resourceEl = thisDocument.createElement('link'); | ||
| resourceEl.href = href; | ||
| resourceEl.rel = 'stylesheet'; | ||
| resourceEl.dataset['precedence'] = precedence = style[j++]; | ||
| while ((attr = style[j++])) { | ||
| resourceEl.setAttribute(attr, style[j++]); | ||
| } | ||
|
|
||
| // We stash a pending promise in our map by href which will resolve or reject | ||
| // when the underlying resource loads or errors. We add it to the dependencies | ||
| // array to be returned. | ||
| loadingState = resourceEl['_p'] = new Promise((re, rj) => { | ||
| resourceEl.onload = re; | ||
| resourceEl.onerror = rj; | ||
| }); | ||
| loadingState.then( | ||
| setStatus.bind(loadingState, LOADED), | ||
| setStatus.bind(loadingState, ERRORED), | ||
| ); | ||
| resourceMap.set(href, loadingState); | ||
| dependencies.push(loadingState); | ||
|
|
||
| // The prior style resource is the last one placed at a given | ||
| // precedence or the last resource itself which may be null. | ||
| // We grab this value and then update the last resource for this | ||
| // precedence to be the inserted element, updating the lastResource | ||
| // pointer if needed. | ||
| const prior = precedences.get(precedence) || lastResource; | ||
| if (prior === lastResource) { | ||
| lastResource = resourceEl; | ||
| } | ||
| precedences.set(precedence, resourceEl); | ||
|
|
||
| // Finally, we insert the newly constructed instance at an appropriate location | ||
| // in the Document. | ||
| if (prior) { | ||
| prior.parentNode.insertBefore(resourceEl, prior.nextSibling); | ||
| } else { | ||
| const head = thisDocument.head; | ||
| head.insertBefore(resourceEl, head.firstChild); | ||
| } | ||
| } | ||
|
|
||
| Promise.all(dependencies).then( | ||
| completeBoundaryImpl.bind(null, suspenseBoundaryID, contentID, ''), | ||
| completeBoundaryImpl.bind( | ||
| null, | ||
| suspenseBoundaryID, | ||
| contentID, | ||
| 'Resource failed to load', | ||
| ), | ||
| ); | ||
| } |
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