@observablehq/runtime - npm Package Compare versions

Comparing version 4.24.0 to 4.25.0

dist/runtime.js

@@ -1,2 +0,2 @@
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Set(e._inputs);for(const n of t){if(n===e)return!0;n._inputs.forEach(t.add,t)}return!1}function vn(e){++e._indegree}function wn(e){--e._indegree}function yn(e){return e._promise.catch(e._rejector)}function _n(e){return new Promise((function(t){e._invalidate=t}))}function gn(e,t){let n,r,o="function"==typeof IntersectionObserver&&t._observer&&t._observer._node,i=!o,a=tn,s=tn;return o&&(r=new IntersectionObserver((([e])=>(i=e.isIntersecting)&&(n=null,a()))),r.observe(o),e.then((()=>(r.disconnect(),r=null,s())))),function(e){return i?Promise.resolve(e):r?(n||(n=new Promise(((e,t)=>(a=e,s=t)))),n.then((()=>e))):Promise.reject()}}function En(e){e._invalidate(),e._invalidate=tn,e._pending();const t=e._value,n=++e._version;let r=null;const o=e._promise=(e._inputs.length?Promise.all(e._inputs.map(yn)).then((function(o){if(e._version!==n)throw sn;for(var i=0,a=o.length;i<a;++i)switch(o[i]){case hn:o[i]=r=_n(e);break;case mn:r||(r=_n(e)),o[i]=gn(r,e);break;case pn:o[i]=e}return e._definition.apply(t,o)})):new Promise((n=>n(e._definition.call(t))))).then((function(t){if(e._version!==n)throw sn;if(function(e){return e&&"function"==typeof e.next&&"function"==typeof e.return}(t))return(r||_n(e)).then((o=t,function(){o.return()})),function(e,t,n){const r=e._module._runtime;let o;function i(e){return new Promise((e=>e(n.next(o)))).then((({done:t,value:n})=>t?void 0:Promise.resolve(n).then(e)))}function a(){const n=i((i=>{if(e._version!==t)throw sn;return o=i,s(i,n).then((()=>r._precompute(a))),e._fulfilled(i),i}));n.catch((r=>{r!==sn&&e._version===t&&(s(void 0,n),e._rejected(r))}))}function s(t,n){return e._value=t,e._promise=n,e._outputs.forEach(r._updates.add,r._updates),r._compute()}return i((n=>{if(e._version!==t)throw sn;return o=n,r._precompute(a),n}))}(e,n,t);var o;return t}));o.then((t=>{e._value=t,e._fulfilled(t)}),(t=>{t!==sn&&(e._value=void 0,e._rejected(t))}))}function Cn(e,t){e._invalidate(),e._invalidate=tn,e._pending(),++e._version,e._indegree=NaN,(e._promise=Promise.reject(t)).catch(tn),e._value=void 0,e._rejected(t)}function xn(e){return window[e]}Object.defineProperties(Runtime,{load:{value:function(e,t,n){if("function"==typeof t&&(n=t,t=null),"function"!=typeof n)throw new Error("invalid observer");null==t&&(t=new Library);const{modules:r,id:o}=e,i=new Map,a=new Runtime(t),s=c(o);function c(e){let t=i.get(e);return t||i.set(e,t=a.module()),t}for(const e of r){const t=c(e.id);let r=0;for(const o of e.variables)o.from?t.import(o.remote,o.name,c(o.from)):t===s?t.variable(n(o,r,e.variables)).define(o.name,o.inputs,o.value):t.define(o.name,o.inputs,o.value),++r}return a},writable:!0,configurable:!0}}),Object.defineProperties(Runtime.prototype,{_precompute:{value:function(e){this._precomputes.push(e),this._compute()},writable:!0,configurable:!0},_compute:{value:function(){return this._computing||(this._computing=this._computeSoon())},writable:!0,configurable:!0},_computeSoon:{value:function(){return new Promise(fn).then((()=>this._disposed?void 0:this._computeNow()))},writable:!0,configurable:!0},_computeNow:{value:async function(){var e,t,n=[],r=this._precomputes;if(r.length){this._precomputes=[];for(const e of r)e();await function(e=0){let t=Promise.resolve();for(let n=0;n<e;++n)t=t.then((()=>{}));return t}(3)}(e=new Set(this._dirty)).forEach((function(t){t._inputs.forEach(e.add,e);const n=function(e){if(e._observer!==nn)return!0;var t=new Set(e._outputs);for(const e of t){if(e._observer!==nn)return!0;e._outputs.forEach(t.add,t)}return!1}(t);n>t._reachable?this._updates.add(t):n<t._reachable&&t._invalidate(),t._reachable=n}),this),(e=new Set(this._updates)).forEach((function(t){t._reachable?(t._indegree=0,t._outputs.forEach(e.add,e)):(t._indegree=NaN,e.delete(t))})),this._computing=null,this._updates.clear(),this._dirty.clear(),e.forEach((function(e){e._outputs.forEach(vn)}));do{for(e.forEach((function(e){0===e._indegree&&n.push(e)}));t=n.pop();)En(t),t._outputs.forEach(o),e.delete(t);e.forEach((function(t){bn(t)&&(Cn(t,new RuntimeError("circular definition")),t._outputs.forEach(wn),e.delete(t))}))}while(e.size);function o(e){0==--e._indegree&&n.push(e)}},writable:!0,configurable:!0},dispose:{value:function(){this._computing=Promise.resolve(),this._disposed=!0,this._variables.forEach((e=>{e._invalidate(),e._version=NaN}))},writable:!0,configurable:!0},module:{value:function(e,t=tn){let n;if(void 0===e)return(n=this._init)?(this._init=null,n):new Module(this);if(n=this._modules.get(e),n)return n;this._init=n=new Module(this),this._modules.set(e,n);try{e(this,t)}finally{this._init=null}return n},writable:!0,configurable:!0},fileAttachments:{value:function(e){return Object.assign((t=>{const n=e(t+="");if(null==n)throw new Error(`File not found: ${t}`);if("object"==typeof n&&"url"in n){const{url:e,mimeType:r}=n;return new FileAttachment(e,t,r)}return new FileAttachment(n,t)}),{prototype:FileAttachment.prototype})},writable:!0,configurable:!0}}),e.Inspector=Inspector,e.Library=Library,e.Runtime=Runtime,e.RuntimeError=RuntimeError,Object.defineProperty(e,"__esModule",{value:!0})}));

package.json

 {
   "name": "@observablehq/runtime",
-  "version": "4.24.0",
+  "version": "4.25.0",
   "license": "ISC",
@@ -5,0 +5,0 @@ "main": "dist/runtime.umd.js",

src/module.js

@@ -1,2 +0,1 @@
-import {forEach} from "./array";
 import constant from "./constant";
@@ -6,3 +5,3 @@ import {RuntimeError} from "./errors";
 import rethrow from "./rethrow";
-import {variable_invalidation, variable_visibility} from "./runtime";
+import {variable_variable, variable_invalidation, variable_visibility} from "./runtime";
 import Variable, {TYPE_DUPLICATE, TYPE_IMPLICIT, TYPE_NORMAL, no_observer, variable_stale} from "./variable";
@@ -15,2 +14,3 @@
     _builtins: {value: new Map([
+      ["@variable", variable_variable],
       ["invalidation", variable_invalidation],
@@ -25,3 +25,2 @@ ["visibility", variable_visibility],
 Object.defineProperties(Module.prototype, {
-  _copy: {value: module_copy, writable: true, configurable: true},
   _resolve: {value: module_resolve, writable: true, configurable: true},
@@ -85,47 +84,58 @@ redefine: {value: module_redefine, writable: true, configurable: true},
 function module_derive(injects, injectModule) {
-  var copy = new Module(this._runtime, this._builtins);
-  copy._source = this;
-  forEach.call(injects, function(inject) {
-    if (typeof inject !== "object") inject = {name: inject + ""};
-    if (inject.alias == null) inject.alias = inject.name;
-    copy.import(inject.name, inject.alias, injectModule);
-  });
-  Promise.resolve().then(() => {
-    const modules = new Set([this]);
-    for (const module of modules) {
-      for (const variable of module._scope.values()) {
-        if (variable._definition === identity) { // import
-          const module = variable._inputs[0]._module;
-          const source = module._source || module;
-          if (source === this) { // circular import-with!
-            console.warn("circular module definition; ignoring"); // eslint-disable-line no-console
-            return;
-          }
-          modules.add(source);
-        }
+  const map = new Map();
+  const modules = new Set();
+  const copies = [];
+
+  // Given a module, derives an alias of that module with an initially-empty
+  // definition. The variables will be copied later in a second pass below.
+  function alias(source) {
+    let target = map.get(source);
+    if (target) return target;
+    target = new Module(source._runtime, source._builtins);
+    target._source = source;
+    map.set(source, target);
+    copies.push([target, source]);
+    modules.add(source);
+    return target;
+  }
+
+  // Inject the given variables as reverse imports into the derived module.
+  const derive = alias(this);
+  for (const inject of injects) {
+    const {alias, name} = typeof inject === "object" ? inject : {name: inject};
+    derive.import(name, alias == null ? name : alias, injectModule);
+  }
+
+  // Iterate over all the variables (currently) in this module. If any
+  // represents an import-with (i.e., an import of a module with a _source), the
+  // transitive import-with must be copied, too, as direct injections may affect
+  // transitive injections. Note that an import-with can only be created with
+  // module.derive and hence it’s not possible for an import-with to be added
+  // later; therefore we only need to apply this check once, now.
+  for (const module of modules) {
+    for (const [name, variable] of module._scope) {
+      if (variable._definition === identity) { // import
+        if (module === this && derive._scope.has(name)) continue; // overridden by injection
+        const importedModule = variable._inputs[0]._module;
+        if (importedModule._source) alias(importedModule);
       }
     }
-    this._copy(copy, new Map);
-  });
-  return copy;
-}
+  }
 
-function module_copy(copy, map) {
-  copy._source = this;
-  map.set(this, copy);
-  for (const [name, source] of this._scope) {
-    var target = copy._scope.get(name);
-    if (target && target._type === TYPE_NORMAL) continue; // injection
-    if (source._definition === identity) { // import
-      var sourceInput = source._inputs[0],
-          sourceModule = sourceInput._module;
-      copy.import(sourceInput._name, name, map.get(sourceModule)
-        || (sourceModule._source
-           ? sourceModule._copy(new Module(copy._runtime, copy._builtins), map) // import-with
-           : sourceModule));
-    } else {
-      copy.define(name, source._inputs.map(variable_name), source._definition);
+  // Finally, with the modules resolved, copy the variable definitions.
+  for (const [target, source] of copies) {
+    for (const [name, sourceVariable] of source._scope) {
+      const targetVariable = target._scope.get(name);
+      if (targetVariable && targetVariable._type !== TYPE_IMPLICIT) continue; // preserve injection
+      if (sourceVariable._definition === identity) { // import
+        const sourceInput = sourceVariable._inputs[0];
+        const sourceModule = sourceInput._module;
+        target.import(sourceInput._name, name, map.get(sourceModule) || sourceModule);
+      } else { // non-import
+        target.define(name, sourceVariable._inputs.map(variable_name), sourceVariable._definition);
+      }
     }
   }
-  return copy;
+
+  return derive;
 }
@@ -132,0 +142,0 @@

src/runtime.js

@@ -13,2 +13,3 @@ import {Library, FileAttachments} from "@observablehq/stdlib";
 
+export var variable_variable = {};
 export var variable_invalidation = {};
@@ -261,2 +262,6 @@ export var variable_visibility = {};
         }
+        case variable_variable: {
+          inputs[i] = variable;
+          break;
+        }
       }
@@ -263,0 +268,0 @@ }

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Found 1 instance in 1 package

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Improved metrics

Total package byte prevSize

155616

increased by0.33%

Lines of code

1137

increased by0.8%

No dependency changes