first experimental implementation of transform function result caching

unyt-org · Nov 22, 2023 · c857dff · c857dff
1 parent 22875eb
commit c857dff
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Showing 5 changed files with 703 additions and 145 deletions.
diff --git a/datex_short.ts b/datex_short.ts
@@ -32,6 +32,11 @@ declare global {
     const observe: typeof Ref.observe
     const observeAndInit: typeof Ref.observeAndInit
     const unobserve: typeof Ref.unobserve
+    /**
+     * Prevents any values accessed within the callback function from
+     * being captured by a transform function (e.g. always)
+     */
+    const isolate: typeof Ref.disableCapturing
 
     // conflict with UIX.template (confusing)
 	// const template: typeof _template; 
@@ -561,9 +566,10 @@ Object.defineProperty(globalThis, 'equals', {value:_equals, configurable:false})
 Object.defineProperty(globalThis, 'selectProperty', {value:_selectProperty, configurable:false})
 Object.defineProperty(globalThis, 'not', {value:_not, configurable:false})
 Object.defineProperty(globalThis, 'effect', {value:_effect, configurable:false})
-Object.defineProperty(globalThis, 'observe', {value:Ref.observe, configurable:false})
-Object.defineProperty(globalThis, 'observeAndInit', {value:Ref.observeAndInit, configurable:false})
-Object.defineProperty(globalThis, 'unobserve', {value:Ref.unobserve, configurable:false})
+Object.defineProperty(globalThis, 'observe', {value:Ref.observe.bind(Ref), configurable:false})
+Object.defineProperty(globalThis, 'observeAndInit', {value:Ref.observeAndInit.bind(Ref), configurable:false})
+Object.defineProperty(globalThis, 'unobserve', {value:Ref.unobserve.bind(Ref), configurable:false})
+Object.defineProperty(globalThis, 'isolate', {value:Ref.disableCapturing.bind(Ref), configurable:false})
 
 // @ts-ignore
 globalThis.get = get

diff --git a/functions.ts b/functions.ts
@@ -4,11 +4,12 @@
  */
 
 
-import { AsyncTransformFunction, BooleanRef, CollapsedValue, CollapsedValueAdvanced, Decorators, INSERT_MARK, METADATA, MaybeObjectRef, MinimalJSRef, Pointer, Ref, RefLike, RefOrValue, Runtime, SmartTransformFunction, TransformFunction, TransformFunctionInputs, handleDecoratorArgs, primitive } from "./datex_all.ts";
+import { AsyncTransformFunction, BooleanRef, CollapsedValue, CollapsedValueAdvanced, Decorators, INSERT_MARK, METADATA, MaybeObjectRef, MinimalJSRef, Pointer, Ref, RefLike, RefOrValue, Runtime, SmartTransformFunction, SmartTransformOptions, TransformFunction, TransformFunctionInputs, handleDecoratorArgs, primitive } from "./datex_all.ts";
 import { Datex } from "./mod.ts";
 import { IterableHandler } from "./utils/iterable-handler.ts";
 
 
+
 /**
  * A generic transform function, creates a new pointer containing the result of the callback function.
  * At any point in time, the pointer is the result of the callback function.
@@ -21,17 +22,16 @@ import { IterableHandler } from "./utils/iterable-handler.ts";
  * y.val // 10
  * ```
  */
-export function always<T>(transform:SmartTransformFunction<T>): MinimalJSRef<T> // return signature from Value.collapseValue(Pointer.smartTransform())
+export function always<T>(transform:SmartTransformFunction<T>, options?: SmartTransformOptions): MinimalJSRef<T> // return signature from Value.collapseValue(Pointer.smartTransform())
 /**
  * Shortcut for datex `always (...)`
  * @param script 
  * @param vars 
  */
 export function always<T=unknown>(script:TemplateStringsArray, ...vars:any[]): Promise<MinimalJSRef<T>>
 export function always(scriptOrJSTransform:TemplateStringsArray|SmartTransformFunction<any>, ...vars:any[]) {
-
     // js function
-    if (typeof scriptOrJSTransform == "function") return Ref.collapseValue(Pointer.createSmartTransform(scriptOrJSTransform));
+    if (typeof scriptOrJSTransform == "function") return Ref.collapseValue(Pointer.createSmartTransform(scriptOrJSTransform, undefined, undefined, undefined, vars[0]));
     // datex script
     else return (async ()=>Ref.collapseValue(await datex(`always (${scriptOrJSTransform.raw.join(INSERT_MARK)})`, vars)))()
 }