perf(parse): major speedup satisfy() (~1.6x faster)

- update ParseContext.addChild() to optionally progress reader
- update call sites in satisfy(), lift(), repeat()

packages/parse/src/combinators/repeat.ts

@@ -7,7 +7,7 @@ export const repeat = <T>(
     id = "repeat"
 ): Parser<T> => (ctx) => {
     if (ctx.done) {
-        return min < 1 ? (ctx.addChild(id), true) : false;
+        return min < 1 ? ctx.addChild(id) : false;
     }
     ctx.start(id);
     for (let i = 0; i < max; i++) {

packages/parse/src/context.ts

@@ -103,7 +103,7 @@ export class ParseContext<T> {
         return true;
     }
 
-    addChild(id: string, result: any = null) {
+    addChild(id: string, result: any = null, consume = false) {
         const curr = this._curr;
         const cstate = curr.state;
         const child: ParseScope<T> = {
@@ -116,7 +116,10 @@ export class ParseContext<T> {
         };
         const children = curr.children;
         children ? children.push(child) : (curr.children = [child]);
-        return child;
+        if (consume) {
+            this.reader.next(cstate!);
+        }
+        return true;
     }
 
     get scope() {

packages/parse/src/prims/lift.ts

@@ -3,7 +3,4 @@ import type { Lift, Parser } from "../api";
 
 export const lift = <R = any>(result: Lift<R>, id = "lift"): Parser<any> => (
     ctx
-) => {
-    ctx.addChild(id, isFunction(result) ? result() : result);
-    return true;
-};
+) => ctx.addChild(id, isFunction(result) ? result() : result);

packages/parse/src/prims/satisfy.ts

@@ -5,13 +5,9 @@ export const satisfy = <T>(fn: Predicate<T>, id = "lit"): Parser<T> => (
     ctx
 ) => {
     if (ctx.done) return false;
-    const reader = ctx.reader;
-    const r = reader.read(ctx.state!);
+    const r = ctx.reader.read(ctx.state!);
     if (!fn(r)) {
         return false;
     }
-    const scope = ctx.start(id);
-    reader.next(scope.state!);
-    scope.result = r;
-    return ctx.end();
+    return ctx.addChild(id, r, true);
 };