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KnockoutJS remove with($context) scope for faster access

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the-djmaze 2024-09-24 13:55:07 +02:00
parent 932525566f
commit c14bbab945
4 changed files with 11 additions and 19 deletions
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12
vendors/knockout/build/output/knockout-latest.debug.js vendored
View file

@ -1622,12 +1622,13 @@ ko.bindingProvider = new class
// Build the source for a function that evaluates "expression"
// For each scope variable, add an extra level of "with" nesting
// Example result: with(sc1) { with(sc0) { return (expression) } }
// Deprecated: with is no longer recommended
var rewrittenBindings = ko.expressionRewriting.preProcessBindings(bindingsString),
functionBody = "with($context){with($data||{}){return{" + rewrittenBindings + "}}}";
bindingFunction = new Function("$context", "$element", functionBody);
functionBody = "with($data){return{" + rewrittenBindings + "}}";
bindingFunction = new Function("$root", "$parent", "$data", "$element", functionBody);
bindingCache.set(cacheKey, bindingFunction);
}
return bindingFunction(bindingContext, node);
return bindingFunction(bindingContext["$root"], bindingContext["$parent"], bindingContext["$data"] || {}, node);
} catch (ex) {
ex.message = "Unable to parse bindings.\nBindings value: " + bindingsString
+ "\nMessage: " + ex.message;
@ -1682,11 +1683,6 @@ ko.bindingContext = class {
}
} else {
self['$root'] = dataItem;
// Export 'ko' in the binding context so it will be available in bindings and templates
// even if 'ko' isn't exported as a global, such as when using an AMD loader.
// See https://github.com/SteveSanderson/knockout/issues/490
self['ko'] = ko;
}
self[contextSubscribable] = subscribable;

6
vendors/knockout/build/output/knockout-latest.js vendored
View file

@ -31,9 +31,9 @@ a.value=b):(c.g.l.set(a,c.i.options.Wa,b),a.__ko__hasDomDataOptionValue__=!0,a.v
l[k-1].match(b))&&!d[p[0]]&&(e=e.slice(e.indexOf(m)+1),l=e.match(a),k=-1,m="/"):40===p||123===p||91===p?++h:41===p||125===p||93===p?--h:n||f.length||34!==p&&39!==p||(m=m.slice(1,-1));f.push(m)}if(0<h)throw Error("Unbalanced parentheses, braces, or brackets");}g.push("'$data':()=>$data");return g.join(",")},cc:(e,g)=>-1<e.findIndex(l=>l.key==g),Ga:(e,g,l,f,h,k)=>{g&&c.W(g)?!c.vb(g)||k&&g.L()===h||g(h):(console.error(`"${f}" should be observable in ${e.outerHTML.replace(/>.+/,">")}`),l.get("$data")[f]=
h)}}})();(()=>{function a(f){return 8==f.nodeType&&e.test(f.nodeValue)}function b(f){return 8==f.nodeType&&g.test(f.nodeValue)}function d(f,h){for(var k=f,m=1,p=[];k=k.nextSibling;){if(b(k)&&(c.g.l.set(k,l,!0),!--m))return p;p.push(k);a(k)&&++m}if(!h)throw Error("Cannot find closing comment tag to match: "+f.nodeValue);return null}var e=/^\s*ko(?:\s+([\s\S]+))?\s*$/,g=/^\s*\/ko\s*$/,l="__ko_matchedEndComment__";c.m={aa:{},childNodes:f=>a(f)?d(f):f.childNodes,ja:f=>{a(f)?(f=d(f))&&[...f].forEach(h=>
c.removeNode(h)):c.g.Qa(f)},pa:(f,h)=>{a(f)?(c.m.ja(f),f.after(...h)):c.g.pa(f,h)},prepend:(f,h)=>{a(f)?f.nextSibling.before(h):f.prepend(h)},Ub:(f,h,k)=>{k?k.after(h):c.m.prepend(f,h)},firstChild:f=>{if(a(f))return f=f.nextSibling,!f||b(f)?null:f;let h=f.firstChild;if(h&&b(h))throw Error("Found invalid end comment, as the first child of "+f);return h},nextSibling:f=>{if(a(f)){var h=d(f,void 0);f=h?(h.length?h[h.length-1]:f).nextSibling:null}if((h=f.nextSibling)&&b(h)){if(b(h)&&!c.g.l.get(h,l))throw Error("Found end comment without a matching opening comment, as child of "+
f);return null}return h},Qb:a,ac:f=>(f=f.nodeValue.match(e))?f[1]:null}})();const T=new Map;c.ob=new class{Xb(a){switch(a.nodeType){case 1:return null!=a.getAttribute("data-bind");case 8:return c.m.Qb(a)}return!1}Ob(a,b){a:{switch(a.nodeType){case 1:var d=a.getAttribute("data-bind");break a;case 8:d=c.m.ac(a);break a}d=null}if(d)try{let g=T.get(d);if(!g){var e="with($context){with($data||{}){return{"+c.la.Yb(d)+"}}}";g=new Function("$context","$element",e);T.set(d,g)}return g(b,a)}catch(g){throw g.message=
"Unable to parse bindings.\nBindings value: "+d+"\nMessage: "+g.message,g;}return null}};const G=Symbol("_subscribable"),H=Symbol("_ancestorBindingInfo"),U=Symbol("_dataDependency"),V={},I=c.g.l.Z();c.i={};c.ba=class{constructor(a,b,d,e){var g=this,l=a===V,f=l?void 0:a,h="function"==typeof f&&!c.W(f),k=e?.dataDependency;a=()=>{var p=h?f():f;p=c.g.h(p);b?(c.g.extend(g,b),H in b&&(g[H]=b[H])):(g.$root=p,g.ko=c);g[G]=m;l?p=g.$data:g.$data=p;d?.(g,b,p);if(b?.[G]&&!c.u.o().Sa(b[G]))b[G]();k&&(g[U]=k);
return g.$data};if(e?.exportDependencies)a();else{var m=c.xb(a);m.L();m.isActive()?m.ka=null:g[G]=void 0}}createChildContext(a,b){return new c.ba(a,this,(d,e)=>{d.$parent=e.$data;b.extend?.(d)},b)}extend(a,b){return new c.ba(V,this,d=>c.g.extend(d,"function"==typeof a?a(d):a),b)}};const W=a=>{a=c.g.l.get(a,I);var b=a?.D;b&&(a.D=null,b.wb())};class ma{constructor(a,b,d){this.H=a;this.da=b;this.ta=new Set;this.F=!1;b.D||c.g.N.addDisposeCallback(a,W);d?.D&&(d.D.ta.add(a),this.za=d)}wb(){this.za?.D?.Mb(this.H)}Mb(a){this.ta.delete(a);
f);return null}return h},Qb:a,ac:f=>(f=f.nodeValue.match(e))?f[1]:null}})();const T=new Map;c.ob=new class{Xb(a){switch(a.nodeType){case 1:return null!=a.getAttribute("data-bind");case 8:return c.m.Qb(a)}return!1}Ob(a,b){a:{switch(a.nodeType){case 1:var d=a.getAttribute("data-bind");break a;case 8:d=c.m.ac(a);break a}d=null}if(d)try{let g=T.get(d);if(!g){var e="with($data){return{"+c.la.Yb(d)+"}}";g=new Function("$root","$parent","$data","$element",e);T.set(d,g)}return g(b.$root,b.$parent,b.$data||
{},a)}catch(g){throw g.message="Unable to parse bindings.\nBindings value: "+d+"\nMessage: "+g.message,g;}return null}};const G=Symbol("_subscribable"),H=Symbol("_ancestorBindingInfo"),U=Symbol("_dataDependency"),V={},I=c.g.l.Z();c.i={};c.ba=class{constructor(a,b,d,e){var g=this,l=a===V,f=l?void 0:a,h="function"==typeof f&&!c.W(f),k=e?.dataDependency;a=()=>{var p=h?f():f;p=c.g.h(p);b?(c.g.extend(g,b),H in b&&(g[H]=b[H])):g.$root=p;g[G]=m;l?p=g.$data:g.$data=p;d?.(g,b,p);if(b?.[G]&&!c.u.o().Sa(b[G]))b[G]();
k&&(g[U]=k);return g.$data};if(e?.exportDependencies)a();else{var m=c.xb(a);m.L();m.isActive()?m.ka=null:g[G]=void 0}}createChildContext(a,b){return new c.ba(a,this,(d,e)=>{d.$parent=e.$data;b.extend?.(d)},b)}extend(a,b){return new c.ba(V,this,d=>c.g.extend(d,"function"==typeof a?a(d):a),b)}};const W=a=>{a=c.g.l.get(a,I);var b=a?.D;b&&(a.D=null,b.wb())};class ma{constructor(a,b,d){this.H=a;this.da=b;this.ta=new Set;this.F=!1;b.D||c.g.N.addDisposeCallback(a,W);d?.D&&(d.D.ta.add(a),this.za=d)}wb(){this.za?.D?.Mb(this.H)}Mb(a){this.ta.delete(a);
this.ta.size||this.rb?.()}rb(){this.F=!0;this.da.D&&!this.ta.size&&(this.da.D=null,c.g.N.Ya(this.H,W),c.j.notify(this.H,c.j.ca),this.wb())}}c.j={F:"childrenComplete",ca:"descendantsComplete",subscribe:(a,b,d,e,g)=>{var l=c.g.l.Ra(a,I,{});l.wa||(l.wa=new c.P);g?.notifyImmediately&&l.Va[b]&&c.u.I(d,e,[a]);return l.wa.subscribe(d,e,b)},notify:(a,b)=>{var d=c.g.l.get(a,I);if(d&&(d.Va[b]=!0,d.wa?.B(a,b),b==c.j.F))if(d.D)d.D.rb();else if(void 0===d.D&&d.wa?.na(c.j.ca))throw Error("descendantsComplete event not supported for bindings on this node");
},$a:(a,b)=>{var d=c.g.l.Ra(a,I,{});d.D||(d.D=new ma(a,d,b[H]));return b[H]==d?b:b.extend(e=>{e[H]=d})}};const Y=(a,b)=>{for(var d,e=c.m.firstChild(b);d=e;)e=c.m.nextSibling(d),X(a,d);c.j.notify(b,c.j.F)},X=(a,b)=>{var d=a;if(1===b.nodeType||c.ob.Xb(b))d=Z(b,null,a);d&&!b.matches?.("SCRIPT,TEXTAREA,TEMPLATE")&&Y(d,b)},na=a=>{var b=[],d={},e=[],g=l=>{if(!d[l]){var f=c.i[l];f&&(f.after&&(e.push(l),f.after.forEach(h=>{if(a[h]){if(e.includes(h))throw Error("Cannot combine the following bindings, because they have a cyclic dependency: "+
e.join(", "));g(h)}}),e.length--),b.push({key:l,ub:f}));d[l]=!0}};c.g.K(a,g);return b},Z=(a,b,d)=>{var e=c.g.l.Ra(a,I,{}),g=e.Hb;if(!b){if(g)throw Error("You cannot apply bindings multiple times to the same element.");e.Hb=!0}g||(e.context=d);e.Va||(e.Va={});if(b&&"function"!==typeof b)var l=b;else{var f=c.o(()=>{if(l=b?b(d,a):c.ob.Ob(a,d))d[G]?.(),d[U]?.();return l},{s:a});l&&f.isActive()||(f=null)}var h=d,k;if(l){var m=f?n=>()=>f()[n]():n=>l[n],p={get:n=>l[n]&&m(n)(),has:n=>n in l};c.j.F in l&&

5
vendors/knockout/src/binding/bindingAttributeSyntax.js vendored
View file

@ -43,11 +43,6 @@ ko.bindingContext = class {
}
} else {
self['$root'] = dataItem;
// Export 'ko' in the binding context so it will be available in bindings and templates
// even if 'ko' isn't exported as a global, such as when using an AMD loader.
// See https://github.com/SteveSanderson/knockout/issues/490
self['ko'] = ko;
}
self[contextSubscribable] = subscribable;

7
vendors/knockout/src/binding/bindingProvider.js vendored
View file

@ -35,12 +35,13 @@ ko.bindingProvider = new class
// Build the source for a function that evaluates "expression"
// For each scope variable, add an extra level of "with" nesting
// Example result: with(sc1) { with(sc0) { return (expression) } }
// Deprecated: with is no longer recommended
var rewrittenBindings = ko.expressionRewriting.preProcessBindings(bindingsString),
functionBody = "with($context){with($data||{}){return{" + rewrittenBindings + "}}}";
bindingFunction = new Function("$context", "$element", functionBody);
functionBody = "with($data){return{" + rewrittenBindings + "}}";
bindingFunction = new Function("$root", "$parent", "$data", "$element", functionBody);
bindingCache.set(cacheKey, bindingFunction);
}
return bindingFunction(bindingContext, node);
return bindingFunction(bindingContext["$root"], bindingContext["$parent"], bindingContext["$data"] || {}, node);
} catch (ex) {
ex.message = "Unable to parse bindings.\nBindings value: " + bindingsString
+ "\nMessage: " + ex.message;