feat: passing liquid to FilterImpl, closes #277

src/template/value.ts

@@ -5,6 +5,7 @@ import { Filter } from './filter/filter'
 import { Context } from '../context/context'
 import { ValueToken } from '../tokens/value-token'
 import { assert } from '../util/assert'
+import { Liquid } from '../liquid'
 
 export class Value {
   public readonly filters: Filter[] = []
@@ -13,15 +14,15 @@ export class Value {
   /**
    * @param str the value to be valuated, eg.: "foobar" | truncate: 3
    */
-  public constructor (str: string, private readonly filterMap: FilterMap) {
+  public constructor (str: string, private readonly filterMap: FilterMap, liquid: Liquid) {
     const tokenizer = new Tokenizer(str)
     this.initial = tokenizer.readValue()
-    this.filters = tokenizer.readFilters().map(({ name, args }) => new Filter(name, this.filterMap.get(name), args))
+    this.filters = tokenizer.readFilters().map(({ name, args }) => new Filter(name, this.filterMap.get(name), args, liquid))
   }
   public * value (ctx: Context) {
     assert(ctx, () => 'unable to evaluate: context not defined')
-    const lenient = ctx.opts.lenientIf && this.filters.length > 0 && this.filters[0].name == "default"
-    
+    const lenient = ctx.opts.lenientIf && this.filters.length > 0 && this.filters[0].name === 'default'
+
     let val = yield evalToken(this.initial, ctx, lenient)
     for (const filter of this.filters) {
       val = yield filter.render(val, ctx)