diff --git a/src/launch.js b/src/launch.js
index e2a60ac..eeda405 100644
--- a/src/launch.js
+++ b/src/launch.js
@@ -1,10 +1,10 @@
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t=Qt("ace/keyboard/vim").CodeMirror.Vim;this.ace_editor.commands.removeCommand("openCommandPallete"),this.ace_editor.commands.removeCommand("toggleFoldWidget"),this.ace_editor.commands.removeCommand("goToNextError"),this.ace_editor.commands.bindKey("F5","goto_definition"),t._mapCommand({keys:"gd",type:"action",action:"aceCommand",actionArgs:{name:"goto_definition"}}),this.ace_editor.commands.addCommand({name:"goto_definition",exec:r=>{this.goto_definition()}}),this.ace_editor.commands.bindKey("F1","focus_value_explorer"),this.ace_editor.commands.addCommand({name:"focus_value_explorer",exec:r=>{this.focus_value_explorer()}}),this.ace_editor.commands.bindKey("F11","step_into"),this.ace_editor.commands.addCommand({name:"step_into",exec:r=>{v("step_into")}}),this.ace_editor.commands.bindKey("Shift-F11","step_out"),this.ace_editor.commands.addCommand({name:"step_out",exec:r=>{v("calltree.arrow_left")}}),this.ace_editor.commands.addCommand({name:"expand_selection",exec:()=>{v("eval_selection",this.get_cursor_position(),!0)}}),this.ace_editor.commands.addCommand({name:"collapse_selection",exec:()=>{v("eval_selection",this.get_cursor_position(),!1)}}),this.ace_editor.commands.bindKey("ctrl-j","expand_selection"),this.ace_editor.commands.bindKey("ctrl-down","expand_selection"),this.ace_editor.commands.bindKey("ctrl-k","collapse_selection"),this.ace_editor.commands.bindKey("ctrl-up","collapse_selection"),this.ace_editor.commands.addCommand({name:"edit",exec:(r,n)=>{let l=n.args==null?"":n.args[0];v("change_current_module",l)}}),t.defineEx("edit","e",function(r,n){r.ace.execCommand("edit",n)}),this.ace_editor.commands.addCommand({name:"buffer",exec:(r,n)=>{let l=n.args==null?"":n.args[0],o=l==""?"":Object.keys($().files).find(i=>i.includes(l));o!=null&&v("change_current_module",o)}}),t.defineEx("buffer","b",function(r,n){r.ace.execCommand("buffer",n)}),t.map("jj","<Esc>","insert")}add_marker(t,r,n,l){let o=this.get_session(t),i=o.doc.indexToPosition(n),s=o.doc.indexToPosition(l),a=o.addMarker(new globalThis.ace.Range(i.row,i.column,s.row,s.column),r);this.markers[t]==null&&(this.markers[t]=[]),this.markers[t].push({className:r,from:n,to:l,markerId:a})}remove_markers_of_type(t,r){this.markers[t]==null&&(this.markers[t]=[]);let n=this.markers[t].filter(o=>o.className==r),l=this.get_session(t);for(let o of n)l.removeMarker(o.markerId);this.markers[t]=this.markers[t].filter(o=>o.className!=r)}get_cursor_position(t){let r=t==null?this.ace_editor.getSession():this.get_session(t);if(r==null)throw new Error("illegal state");return r.doc.positionToIndex(r.selection.getCursor())}set_cursor_position(t){if(t==null)throw new Error("illegal state");this.supress_change_selection(()=>{let r=this.ace_editor.session.doc.indexToPosition(t);this.ace_editor.moveCursorToPosition(r),this.ace_editor.clearSelection();let n=this.ace_editor.renderer.getFirstVisibleRow(),l=this.ace_editor.renderer.getLastVisibleRow();(r.row<n||r.row>l)&&this.ace_editor.scrollToLine(r.row)})}goto_definition(){let t=this.get_cursor_position();v("goto_definition",t)}for_each_session(t){for(let r in this.sessions)t(r,this.sessions[r])}make_resizable(){let t=()=>{this.editor_container.style.height=localStorage.editor_height+"vh"},r=new Date().getTime();window.addEventListener("resize",()=>{r=new Date().getTime()}),localStorage.editor_height!=null&&t();let n=!0;new ResizeObserver(l=>{if(n){n=!1;return}if(new Date().getTime()-r<100)return;this.ace_editor.resize();let o=this.editor_container.offsetHeight/window.innerHeight*100;localStorage.editor_height=o,setTimeout(t,0)}).observe(this.editor_container)}};var gi=new Function("arr","pred",`
   for(let i = arr.length - 1; i >= 0; i--) {
     if(pred(arr[i])) {
       return arr[i]
     }
   }
-`);var cr=(e,t)=>new Set([...e,...t]),_r=(e,t)=>e.size===t.size&&[...e].every(r=>t.has(r)),mt=(e,t)=>new Set([...e].filter(r=>!t.has(r))),gt=(e,t)=>Object.fromEntries(Object.entries(e).map(([r,n])=>[r,t(r,n)])),ur=(e,t)=>Object.fromEntries(Object.entries(e).filter(([r,n])=>t(r,n))),dr=new Function("fn","acc","arr",`
+`);var _r=(e,t)=>new Set([...e,...t]),ur=(e,t)=>e.size===t.size&&[...e].every(r=>t.has(r)),yt=(e,t)=>new Set([...e].filter(r=>!t.has(r))),wt=(e,t)=>Object.fromEntries(Object.entries(e).map(([r,n])=>[r,t(r,n)])),dr=(e,t)=>Object.fromEntries(Object.entries(e).filter(([r,n])=>t(r,n))),pr=new Function("fn","acc","arr",`
   let idx = 0;
   const len = arr.length;
   const result = [];
@@ -15,7 +15,7 @@
     idx += 1;
   }
   return [tuple[0], result];
-`),Re=(e,t)=>e.reduce((r,n,l)=>r??t(n,l),null);var pr=(e,t)=>{if(e.length!=t.length)throw new Error("zipped arrays must have same length");return e.map((r,n)=>[r,t[n]])},se=e=>[...new Set(e)],fr=(e,t)=>[...new Map(e.map(r=>[t(r),r])).values()],hr=new Function("node","pred",`
+`),Ue=(e,t)=>e.reduce((r,n,l)=>r??t(n,l),null);var fr=(e,t)=>{if(e.length!=t.length)throw new Error("zipped arrays must have same length");return e.map((r,n)=>[r,t[n]])},se=e=>[...new Set(e)],hr=(e,t)=>[...new Map(e.map(r=>[t(r),r])).values()],mr=new Function("node","pred",`
   const result = []
 
   const do_collect = (node, parent) => {
@@ -32,7 +32,7 @@
   do_collect(node, null)
 
   return result
-`);var mr=`function fib(n) {
+`);var gr=`function fib(n) {
   if(n == 0 || n == 1) {
     return n
   } else {
@@ -41,7 +41,7 @@
 }
 
 fib(6)
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   const result = []
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@@ -57,18 +57,18 @@ fib(6)
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s=e.children;e.children=null,e.stack.push(!1);let a=++e.call_counter,_=e.version_counter,c,u=e.breakpoint.current_calltree_node_id==a;u&&(c={args:M(e.window,i),context_before:M(e.window,this)},K(e));let p,f,h,m=e.is_toplevel_call;e.is_toplevel_call=!1;try{return new.target==null?f=t(...i):f=new t(...i),p=!0,f?.[Symbol.toStringTag]=="Promise"&&K(e),u&&(c.ok=p,c.context_after=M(e.window,this),c.value=M(e.window,f)),f}catch(y){throw p=!1,h=y,u&&(c.error=M(e.window,h)),K(e),e.is_recording_deferred_calls&&m&&h instanceof e.window.Error&&(h.__ignore=!0),h}finally{let y={id:a,version_number:_,last_version_number:e.version_counter,ok:p,context:this,value:f,error:h,fn:o,args:n==null?i:i.slice(0,n),snapshot:c};if(e.stack.pop()?y.children=e.children:y.has_more_children=e.children!=null&&e.children.length!=0,e.children=s,e.children==null&&(e.children=[]),e.children.push(y),e.is_toplevel_call=m,e.is_recording_deferred_calls&&e.is_toplevel_call){if(e.children.length!=1)throw new Error("illegal 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a=++e.call_counter,_=e.version_counter,c,u=e.breakpoint.current_calltree_node_id==a;u&&(c={args:M(e.window,n),context_before:M(e.window,r)},K(e));let p,f,h;try{return o?f=new t(...n):f=t.apply(r,n),p=!0,f?.[Symbol.toStringTag]=="Promise"&&K(e),u&&(c.ok=p,c.context_after=M(e.window,r),c.value=M(e.window,f)),f}catch(m){throw p=!1,h=m,u&&(c.error=M(e.window,h)),K(e),h}finally{let m={id:a,version_number:_,last_version_number:e.version_counter,ok:p,value:f,error:h,fn:t,args:n,context:r,is_new:o,snapshot:c,callsite_location:i};m.children_count=e.children?.length??0,e.stack.pop()?m.children=e.children:m.has_more_children=e.children!=null&&e.children.length!=0,e.children=s,e.children==null&&(e.children=[]),e.children.push(m)}},Al=(e,t,r)=>{if(!e.is_entrypoint)return;let n=e.snapshots,l=n.get(t);if(!(l==null||r==e.breakpoint.selected_call_id))return null;l==null&&(l=new Map,n.set(t,l));let i=l.get(r);return i==null?(i={call_id:r,ok:!1},K(e),l.set(r,i),i):null},Ml=(e,t,r)=>(t!=null&&(t.ok=!0,t.value=M(e.window,r)),r),zl=(e,t,r,n)=>{if(!e.is_entrypoint)return;let o=e.snapshots.get(t);if(o==null)return n;let i=o.get(r);return i!=null&&!i.ok&&(i.ok=!0,i.value=M(e.window,n)),n},Nl=Symbol("loop_break"),Fl=Symbol("loop_continue"),Dl={trace:Cl,trace_call:Pl,await_start:Tl,await_finish:$l,before_take_node_snapshot:Al,take_node_snapshot_fast:Ml,take_node_snapshot:zl,Symbol_loop_break:Nl,Symbol_loop_continue:Fl};function jt(e){return e.replace(/\s*\n\s*/g,"")}var $t=(e,t)=>"const __call_id = __cxt.call_counter;"+((e.type=="function_expr"?e.is_async:Ee(e))?"let __await_state;":"")+(t.should_collect_footprints&&t.breakpoint.function_node==e?`
           const __footprints = new Map();
           __cxt.footprints.set(__call_id, __footprints);
-          `:""),Ir=(e,t)=>{let r={...t,current_function:e},n=u=>ue(u,r,e),l=e.is_arrow?"(...__arguments) => ":"function(...__arguments)",o="let ["+e.function_args.children.map(u=>ue(u,r,e.function_args)).join(",")+"] = __arguments;",i=Tt(e,t),s=e.function_args;if(t.breakpoint.function_node==e){let u=`${t.module}_${e.index}_${e.length}`,p="{"+O(s).map(f=>f.value).join(",")+"}";o=`__rt.before_take_node_snapshot(__cxt, '${u}', __call_id);`+o+`__rt.take_node_snapshot(__cxt, '${u}', __call_id, ${p});`,t.should_collect_footprints&&(o=o+`__footprints.set('${s.index}_${s.length}', true);
-`)}let a=(e.is_async?"async ":"")+l+(e.body.type=="do"?"{"+i+o+n(e.body)+"}":"{"+i+o+"return "+n(e.body)+"}"),_=e.function_args.children.find(u=>u.type=="destructuring_rest")==null?e.function_args.children.length:null,c=`{index: ${e.index}, length: ${e.length}, module: '${t.module}'}`;return`__rt.trace(__cxt, ${a}, "${e.name}", ${_}, ${c})`},Hr=e=>e.string.replaceAll(new RegExp("\\(.*\\)","g"),"(...)"),jt=(e,t)=>"'"+JSON.stringify({index:e.index,length:e.length,module:t.module}).replaceAll("'","\\'")+"'",Dl=(e,t)=>{let r=(s,a)=>ue(s,t,a??e),n=`[${e.args.children.map(s=>r(s,e.args)).join(",")}]`,l=Hr(e.fn),o=jt(e,t),i=r(e.fn);return e.fn.type=="member_access"?`(
+          `:""),Ur=(e,t)=>{let r={...t,current_function:e},n=u=>de(u,r,e),l=e.is_arrow?"(...__arguments) => ":"function(...__arguments)",o="let ["+e.function_args.children.map(u=>de(u,r,e.function_args)).join(",")+"] = __arguments;",i=$t(e,t),s=e.function_args;if(t.breakpoint.function_node==e){let u=`${t.module}_${e.index}_${e.length}`,p="{"+C(s).map(f=>f.value).join(",")+"}";o=`__rt.before_take_node_snapshot(__cxt, '${u}', __call_id);`+o+`__rt.take_node_snapshot(__cxt, '${u}', __call_id, ${p});`,t.should_collect_footprints&&(o=o+`__footprints.set('${s.index}_${s.length}', true);
+`)}let a=(e.is_async?"async ":"")+l+(e.body.type=="do"?"{"+i+o+n(e.body)+"}":"{"+i+o+"return "+n(e.body)+"}"),_=e.function_args.children.find(u=>u.type=="destructuring_rest")==null?e.function_args.children.length:null,c=`{index: ${e.index}, length: ${e.length}, module: '${t.module}'}`;return`__rt.trace(__cxt, ${a}, "${e.name}", ${_}, ${c})`},Wr=e=>e.string.replaceAll(new RegExp("\\(.*\\)","g"),"(...)"),Tt=(e,t)=>"'"+JSON.stringify({index:e.index,length:e.length,module:t.module}).replaceAll("'","\\'")+"'",Rl=(e,t)=>{let r=(s,a)=>de(s,t,a??e),n=`[${e.args.children.map(s=>r(s,e.args)).join(",")}]`,l=Wr(e.fn),o=Tt(e,t),i=r(e.fn);return e.fn.type=="member_access"?`(
       __obj = ${r(e.fn.object,e.fn)},
       __fn = ${i},
       __rt.trace_call(__cxt, __fn, __obj, ${n}, ${JSON.stringify(l)}, false, ${o})
-    )`:`__rt.trace_call(__cxt, ${i}, null, ${n}, ${JSON.stringify(l)}, false, ${o})`},Wr=e=>`(__await_state = __rt.await_start(__cxt, ${e}),await __await_state.promise,__rt.await_finish(__cxt, __await_state))`,Ur=(e,t)=>e?Wr(t):t,qr=(e,t,r)=>{let n=(l,o)=>ue(l,t,o??e);if(e.type=="identifier")return e.value;if(["number","string_literal","builtin_identifier","backtick_string"].includes(e.type))return e.value;if(e.type=="do")return[...e.children.filter(l=>l.type=="function_decl"),...e.children.filter(l=>l.type!="function_decl")].reduce((l,o)=>l+n(o)+`;
-`,"");if(e.type=="return")return e.expr==null?"return ;":"return "+n(e.expr)+";";if(e.type=="throw")return"throw "+n(e.expr)+";";if(e.type=="if"){let l=s=>"{"+n(s)+"}",o="if("+n(e.cond)+")"+l(e.branches[0]);return e.branches[1]==null?o:o+" else "+l(e.branches[1])}else{if(e.type=="array_literal")return"["+e.elements.map(l=>n(l)).join(", ")+"]";if(e.type=="object_literal")return`{${e.elements.map(o=>{if(o.type=="object_spread")return n(o);if(o.type=="identifier"){let i=n(o);return o.value+": "+i}else{if(o.type=="key_value_pair")return"["+(o.key.type=="computed_property"?n(o.key.expr,o.key):n(o.key,o))+"]: ("+n(o.value,o)+")";throw new Error("unknown node type "+o.type)}}).join(",")}}`;if(e.type=="function_call")return Dl(e,t);if(e.type=="function_expr")return Ir(e,t);if(e.type=="ternary")return"("+n(e.cond)+`)
+    )`:`__rt.trace_call(__cxt, ${i}, null, ${n}, ${JSON.stringify(l)}, false, ${o})`},qr=e=>`(__await_state = __rt.await_start(__cxt, ${e}),await __await_state.promise,__rt.await_finish(__cxt, __await_state))`,Hr=(e,t)=>e?qr(t):t,Br=(e,t,r)=>{let n=(l,o)=>de(l,t,o??e);if(e.type=="identifier")return e.value;if(["number","string_literal","builtin_identifier","backtick_string"].includes(e.type))return e.value;if(e.type=="do")return[...e.children.filter(l=>l.type=="function_decl"),...e.children.filter(l=>l.type!="function_decl")].reduce((l,o)=>l+n(o)+`;
+`,"");if(e.type=="return")return e.expr==null?"return ;":"return "+n(e.expr)+";";if(e.type=="throw")return"throw "+n(e.expr)+";";if(e.type=="if"){let l=s=>"{"+n(s)+"}",o="if("+n(e.cond)+")"+l(e.branches[0]);return e.branches[1]==null?o:o+" else "+l(e.branches[1])}else{if(e.type=="array_literal")return"["+e.elements.map(l=>n(l)).join(", ")+"]";if(e.type=="object_literal")return`{${e.elements.map(o=>{if(o.type=="object_spread")return n(o);if(o.type=="identifier"){let i=n(o);return o.value+": "+i}else{if(o.type=="key_value_pair")return"["+(o.key.type=="computed_property"?n(o.key.expr,o.key):n(o.key,o))+"]: ("+n(o.value,o)+")";throw new Error("unknown node type "+o.type)}}).join(",")}}`;if(e.type=="function_call")return Rl(e,t);if(e.type=="function_expr")return Ur(e,t);if(e.type=="ternary")return"("+n(e.cond)+`)
 ? `+n(e.branches[0])+`
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+: `+n(e.branches[1]);if(e.type=="assignment")return"("+e.children.map(l=>n(l,e)).join(",")+")";if(["const","let"].includes(e.type))return e.children.map(o=>{if(o.type=="identifier"){if(e.type!="let")throw new Error("illegal state");return"let "+o.value}return n(o,e)}).join(";")+";";if(e.type=="decl_pair"||e.type=="assignment_pair"){if(r.type=="assignment"&&e.children[0].type!="member_access"){let[a]=e.children;if(a.type!="identifier")throw new Error("TODO: illegal state")}let l=Br(e.children[0],t,e),o=n(e.children[1]),i=t.breakpoint.selected_node;return(i==e.children[0]||i==e)&&(o=Se(t.breakpoint.selected_node,o,t)),(r.type=="assignment"?"":r.type+" ")+" "+l+" = "+o}else{if(e.type=="member_access")return"("+(r.type=="function_call"?"__obj":n(e.object))+(e.is_optional_chaining?")?.[":")[")+n(e.property)+"]";if(e.type=="unary")return e.operator=="await"?qr(n(e.expr)):"("+e.operator+" "+n(e.expr)+")";if(e.type=="binary")return""+n(e.args[0])+" "+e.operator+" "+n(e.args[1]);if(e.type=="array_spread"||e.type=="object_spread")return"...("+n(e.expr)+")";if(e.type=="new"){let l=`[${e.args.children.map(i=>n(i,e.args)).join(",")}]`,o=Wr(e.constructor);return`__rt.trace_call(__cxt, ${n(e.constructor)}, null, ${l},${JSON.stringify(o)}, true, ${Tt(e,t)})`}else{if(e.type=="grouping")return"("+n(e.expr)+")";if(e.type=="array_destructuring")return"["+e.elements.map(l=>n(l,e)).join(", ")+"]";if(e.type=="object_destructuring")return"{"+e.elements.map(l=>n(l)).join(", ")+"}";if(e.type=="destructuring_rest")return"..."+n(e.name_node);if(e.type=="destructuring_default")return n(e.name_node)+" = "+n(e.expr);if(e.type=="destructuring_pair")return"["+n(e.key)+"] : "+n(e.value);if(e.type=="import"){let l,o;return e.default_import!=null?(o=`default: ${e.default_import},`,l=e.children.slice(1).map(i=>i.value)):(o="",l=e.children.map(i=>i.value)),`const {${o} ${l.join(",")}} = __cxt.modules['${e.full_import_path}'];`}else if(e.type=="export"){if(e.is_default)return`__cxt.modules['${t.module}'].default = ${n(e.children[0])};`;{let l=e.binding.children.flatMap(o=>C(o.name_node)).map(o=>o.value);return n(e.binding)+`Object.assign(__cxt.modules['${t.module}'], {${l.join(",")}});`}}else if(e.type=="function_decl"){let l=e.children[0];return`let ${l.name} = ${Ur(l,t)};`}else if(e.type=="while"){let l={...t,current_function:e},o=_=>de(_,l,e),i=Ee(e),s=$t(e,t),a=Hr(i,`__rt.trace_call(
         __cxt,
         Object.defineProperty(
           ${i?"async":""} () => {
@@ -78,7 +78,7 @@ fib(6)
               __cxt,
               ${i?"async":""} () => {
                 ${s};
-                ${t.breakpoint.function_node==e?ke(e,"null",t):""}
+                ${t.breakpoint.function_node==e?Se(e,"null",t):""}
                 if(${o(e.cond)}) {
                   ${o(e.body)}
                   return __rt.Symbol_loop_continue
@@ -97,7 +97,7 @@ fib(6)
               if(__loop_counter_${e.index}++ > 1000) {
                 throw new RangeError('Potential infinite loop: exceeded 1000 iterations.')
               }
-              const __loop_result_iter_${e.index} = ${Ur(i,"__loop_body_"+e.index+"()")};
+              const __loop_result_iter_${e.index} = ${Hr(i,"__loop_body_"+e.index+"()")};
               if(__loop_result_iter_${e.index} == __rt.Symbol_loop_continue) {
                 // do nothing, continue loop
               } else {
@@ -113,49 +113,49 @@ fib(6)
         null,
         null,
         false,
-        ${jt(e,t)},
+        ${Tt(e,t)},
       )`);return`
       const __loop_location_${e.index} = {index: ${e.index}, length: ${e.length}, module: '${t.module}'}
       const __loop_result_${e.index} = ${a};
       if(__loop_result_${e.index} != __rt.Symbol_loop_break) {
         return __loop_result_${e.index}
       }
-    `}else{if(e.type=="break")return"return __rt.Symbol_loop_break;";if(e.type=="continue")return"return __rt.Symbol_loop_continue;";throw console.error(e),new Error("unknown node type: "+e.type)}}}}},ke=(e,t,r)=>{let n=`${r.module}_${e.index}_${e.length}`;return St(`
+    `}else{if(e.type=="break")return"return __rt.Symbol_loop_break;";if(e.type=="continue")return"return __rt.Symbol_loop_continue;";throw console.error(e),new Error("unknown node type: "+e.type)}}}}},Se=(e,t,r)=>{let n=`${r.module}_${e.index}_${e.length}`;return jt(`
     __rt.take_node_snapshot_fast(
       __cxt, 
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loop("+t.children_count+")",r?null:[": ",L(n)])}render_loop_iteration(t,r){let{ok:n,error:l}=G(t),o=r.children.indexOf(t);return d("span","call_header "+(n?"":"error"),d("span",null,"iteration "+o),n?"":d("span","call_header error",":\xA0",L(l)))}render_node(t,r){let n=this.state.calltree_node_is_expanded[t.id],l=d("div","callnode",d("div",{class:"call_el",click:o=>this.on_click_node(o,t.id)},le(t)?n&&t.has_more_children?d("div","spinner"):d("span","expand_icon",n?"\u25BC":"\u25B6"):d("span","expand_icon_placeholder","\xA0"),t.toplevel?d("span",t.ok?"":"call_header error",d("i","","toplevel: "+(t.module==""?"*scratch*":t.module)),t.ok?"":d("span","",":\xA0",L(t.error))):t.fn.__type=="loop_iteration"?this.render_loop_iteration(t,r):t.code?.type=="while"?this.render_loop_while(t):d("span","call_header "+(ne(t)?"error":"")+(t.fn.is_hosted?"":" native"),t.is_new?"new ":"",t.context==null?"":d("span","",typeof t.context=="object"?t.context.constructor?.name||"":L(t.context),"."),t.fn.name,"(",...oe(t.args.map(o=>L(o))),")",": ",t.ok?L(t.value):L(t.error))),t.children==null||!n?null:t.children.map(o=>this.render_node(o,t)));return this.node_to_el.set(t.id,l),l.is_expanded=n,l}render_active(t,r){let n=this.node_to_el.get(t.id).getElementsByClassName("call_el")[0];r?n.classList.add("active"):n.classList.remove("active")}render_select_node(t,r){if(t!=null&&this.render_active(t.current_calltree_node,!1),this.state=r,this.render_active(this.state.current_calltree_node,!0),t?.current_calltree_node!=r.current_calltree_node){let n=this.container.scrollLeft;ie(this.container,this.node_to_el.get(this.state.current_calltree_node.id).getElementsByClassName("call_el")[0]),this.container.scrollLeft=n}}render_expand_node(t,r){this.state=r,this.do_render_expand_node(t.calltree_node_is_expanded,r.calltree_node_is_expanded,P(t),P(r));let n=U(t),l=U(r);if(n!=null){for(let o=0;o<n.length;o++)this.do_render_expand_node(t.calltree_node_is_expanded,r.calltree_node_is_expanded,n[o],l[o]);for(let o=n.length;o<l.length;o++)this.deferred_calls_root.appendChild(this.render_node(l[o]))}this.render_select_node(t,r)}do_render_expand_node(t,r,n,l,o){if(n.id!=l.id)throw new Error("illegal state");if(!!t[n.id]!=!!r[l.id]||!!n.has_more_children!=!!l.has_more_children){let i=this.node_to_el.get(n.id),s=this.render_node(l,o);i.parentNode.replaceChild(s,i)}else{if(n.children==null)return;for(let i=0;i<n.children.length;i++)this.do_render_expand_node(t,r,n.children[i],l.children[i],l)}}render_calltree(t){this.clear_calltree(),this.state=t;let r=P(this.state);this.container.appendChild(this.render_node(r)),U(t)!=null&&this.render_deferred_calls(t),this.render_select_node(null,t)}render_deferred_calls(t){this.state=t,this.container.appendChild(d("div","callnode",d("div","call_el",d("i","","deferred calls"),this.deferred_calls_root=d("div","callnode",U(t).map(r=>this.render_node(r))))))}};var it=class{constructor(t,r){this.el=r,this.ui=t,this.el.addEventListener("keydown",n=>{n.key=="Escape"&&this.ui.editor.focus(),n.key=="Enter"&&this.ui.editor.focus(),n.key=="F1"&&this.ui.editor.focus_value_explorer(this.el),n.key=="F3"&&this.ui.editor.focus(),(n.key=="ArrowDown"||n.key=="j")&&(n.preventDefault(),v("calltree.navigate_logs_increment",1)),(n.key=="ArrowUp"||n.key=="k")&&(n.preventDefault(),v("calltree.navigate_logs_increment",-1))})}rerender_logs(t,r){this.el.innerHTML="",this.render_logs(t,null,r)}render_logs(t,r,n){for(let l=r==null?0:r.logs.length;l<n.logs.length;l++){let o=n.logs[l],i=o.module==null?"unknown":o.module==""?"*scratch*":o.module,s=["error","warn"].includes(o.log_fn_name)?o.log_fn_name:"";this.el.appendChild(d("div",{class:"log call_header "+s+(o.module==null?" native":""),click:()=>v("calltree.navigate_logs_position",l)},d("a",{href:"javascript: void(0)"},i+": "+(o.toplevel?"toplevel":"fn "+(o.parent_name==""?"anonymous":o.parent_name))+":")," ",...oe(o.args.map(a=>L(a)))))}if(r?.log_position!=n.log_position&&(r?.logs==n.logs&&r?.log_position!=null&&this.el.children[r.log_position].classList.remove("active"),n.log_position!=null)){let l=this.el.children[n.log_position];l.classList.add("active"),ie(this.el,l)}}};var st=class{constructor(t,r){this.el=r,this.ui=t,this.el.addEventListener("keydown",n=>{n.key=="Escape"&&this.ui.editor.focus(),n.key=="F4"&&this.ui.editor.focus()})}clear(){this.el.innerHTML="",this.is_rendered=!1}render_io_trace(t,r){if(r&&(this.is_rendered=!1),this.is_rendered)return;this.is_rendered=!0,this.el.innerHTML="";let n=t.io_trace??[],l=t.rt_cxt.io_trace_index??n.length;for(let o=0;o<n.length;o++){let i=n[o];if(i.type=="resolution")continue;let s=o<l;this.el.appendChild(d("div","call_header "+(ne(i)?"error ":"")+(s?"":"native "),i.name,"(",...oe(i.args.map(a=>L(a))),"): ",i.ok?L(i.value):L(i.error)))}}};var Jo="leporello-js",Dn=`https://firebasestorage.googleapis.com/v0/b/${Jo}.appspot.com/o/`;async function Go(e){let t=new TextEncoder().encode(e),r=await crypto.subtle.digest("SHA-256",t);return Array.from(new Uint8Array(r)).map(o=>o.toString(16).padStart(2,"0")).join("")}async function Xo(e){let t=(await Go(e)).slice(0,40),r=new Blob([e],{type:"text/plain"}),n=new FormData;n.append("file",r);let l=await fetch(Dn+t,{method:"POST",body:n});if(!l.ok){let i=(await l.json())?.error?.message;throw new Error("Failed to upload: "+i)}return t}async function Yo(e){let t=await fetch(Dn+e+"?alt=media");if(!t.ok){let n=(await t.json())?.error?.message;throw new Error("Failed to fetch: "+n)}return t.text()}async function Rn(){let t=new URLSearchParams(window.location.search).get("share_id");if(t==null)return null;let r=localStorage["share_"+t];if(r!=null)return r;try{return await Yo(t)}catch(n){return alert(n.message),null}}async function In(e){let t=await Xo(e),r=new URL(window.location);r.searchParams.set("share_id",t),history.replaceState(null,null,r.href)}var at=class{constructor(){this.el=d("dialog","share_dialog",this.upload_begin=d("p","",d("p","","This button will upload your scratch file to the cloud for sharing with others."),d("ul","",d("li","","Please ensure that no personal data or confidential information is included."),d("li","","Avoid including copyrighted materials.")),d("span",{style:"color: red"},"Caution: Once shared, files cannot be deleted."),this.upload_buttons=d("p",{style:"text-align: center"},d("button",{class:"upload_button",click:()=>this.upload()},"Upload"),this.cancel_button=d("button",{style:"margin-left: 1em",click:()=>this.cancel()},"Cancel"))),this.uploading=d("span",{style:"display: none"},"Uploading..."),this.upload_finish=d("p",{style:"display: none"},d("p","",d("p",{style:`
             text-align: center; 
             margin-bottom: 1em; 
             font-size: 1.2em
-          `},"Upload successful"),this.url_share=d("input",{type:"text",readonly:!0,style:"min-width: 30em"}),this.copy_button=d("button",{click:()=>this.copy(),style:"margin-left: 1em"},"Copy URL")),this.close_button=d("button",{style:"display: block; margin: auto",click:()=>this.cancel()},"Close")))}async upload(){this.uploading.style.display="",this.upload_begin.style.display="none";try{await Rn($().files[""]),this.url_share.value=window.location.toString(),this.upload_finish.style.display=""}catch(t){alert(t.message),this.upload_begin.style.display=""}finally{this.uploading.style.display="none"}}copy(){this.url_share.select(),document.execCommand("copy")}cancel(){this.upload_finish.style.display="none",this.upload_begin.style.display="",this.el.close()}};var st=class{constructor(t,r){this.open_app_window=this.open_app_window.bind(this),this.files=new Ie(this),this.tabs={},this.debugger={},t.appendChild(this.root=d("div","root",this.editor_container=d("div","editor_container"),d("div","bottom",this.debugger_container=d("div","debugger",this.debugger_loaded=d("div","debugger_wrapper",d("div","tabs",this.tabs.calltree=d("div","tab",d("a",{click:()=>this.set_active_tab("calltree"),href:"javascript: void(0)"},"Call tree (F2)")),this.tabs.logs=d("div","tab",d("a",{click:()=>this.set_active_tab("logs"),href:"javascript: void(0)"},"Logs (F3)")),this.tabs.io_trace=d("div","tab",d("a",{click:()=>this.set_active_tab("io_trace"),href:"javascript: void(0)"},"IO trace (F4)"))),this.debugger.calltree=d("div",{class:"tab_content",tabindex:0}),this.debugger.logs=d("div",{class:"tab_content logs",tabindex:0}),this.debugger.io_trace=d("div",{class:"tab_content io_trace",tabindex:0})),this.debugger_loading=d("div","debugger_wrapper",this.debugger_loading_message=d("div"))),this.problems_container=d("div",{class:"problems_container",tabindex:0},this.problems=d("div"))),this.files.el,this.statusbar=d("div","statusbar",this.loading_spinner=d("div","spinner"),this.status=d("div","status"),this.current_module=d("div","current_module"),d("a",{class:"statusbar_action first",href:"javascript: void(0)",click:()=>this.clear_io_trace()},"Clear IO trace (F6)"),d("a",{class:"statusbar_action open_app_window_button",href:"javascript: void(0)",click:this.open_app_window},"(Re)open app window (F7)",this.open_app_window_tooltip=d("div",{class:"open_app_window_tooltip"},"Click here to open app window")),this.options=d("div","options",d("label",{for:"standard"},d("input",{id:"standard",type:"radio",name:"keyboard",checked:localStorage.keyboard=="standard"||localStorage.keyboard==null,change:()=>{this.editor.set_keyboard_handler("standard")}}),"Standard"),d("label",{for:"vim"},d("input",{id:"vim",type:"radio",name:"keyboard",checked:localStorage.keyboard=="vim",change:()=>{this.editor.set_keyboard_handler("vim")}}),"VIM")),d("a",{class:"show_help",href:"javascript: void(0)",click:()=>this.help_dialog.showModal()},"Help"),d("a",{class:"github",href:"https://leporello.tech",target:"__blank"},"Website"),d("button",{class:"share_button",click:()=>this.share_dialog.showModal()},"Share"),this.help_dialog=this.render_help(),this.share_dialog=new it().el))),window.addEventListener("keydown",()=>this.clear_status(),!0),window.addEventListener("click",()=>this.clear_status(),!0),window.addEventListener("keydown",n=>{n.key=="F2"&&this.set_active_tab("calltree"),n.key=="F3"&&this.set_active_tab("logs"),n.key=="F4"&&this.set_active_tab("io_trace"),n.key=="F6"&&this.clear_io_trace(),n.key=="F7"&&this.open_app_window()}),this.editor=new De(this,this.editor_container),this.calltree=new nt(this,this.debugger.calltree),this.logs=new lt(this,this.debugger.logs),this.io_trace=new ot(this,this.debugger.io_trace),this.render_current_module(r.current_module),this.set_active_tab("calltree",!0),t.addEventListener("focusin",n=>{let l;this.editor_container.contains(document.activeElement)?this.editor.has_value_explorer()?l=!this.debugger_container.contains(this.editor.value_explorer.return_to):l=!0:l=!1,this.prev_is_focus_in_editor!=l&&(this.prev_is_focus_in_editor=l,Ke($(),l))})}set_active_tab(t,r=!1){this.active_tab=t,Object.values(this.tabs).forEach(n=>n.classList.remove("active")),this.tabs[t].classList.add("active"),Object.values(this.debugger).forEach(n=>n.style.display="none"),this.debugger[t].style.display="block",t=="io_trace"&&this.io_trace.render_io_trace($(),!1),r||this.debugger[t].focus(),t=="calltree"&&!r&&v("calltree.show_value_explorer")}clear_io_trace(){v("clear_io_trace")}open_app_window(){this.toggle_open_app_window_tooltip(!1),localStorage.onboarding_open_app_window=!0,ir($())}render_debugger_loading(t){this.debugger_container.style="",this.problems_container.style="display: none",this.debugger_loaded.style="display: none",this.debugger_loading.style="",this.debugger_loading_message.innerText=t.run_state.status==k.load_external_imports?"Loading external modules...":"Executing code..."}render_debugger(t){this.debugger_container.style="",this.problems_container.style="display: none",this.debugger_loading.style="display: none",this.debugger_loaded.style="",this.calltree.render_calltree(t),this.logs.render_logs(t,null,t.logs)}render_io_trace(t){this.active_tab=="io_trace"?this.io_trace.render_io_trace(t,!0):this.io_trace.clear()}render_problems(t){this.debugger_container.style="display: none",this.problems_container.style="",this.problems.innerHTML="",t.forEach(r=>{let l=this.editor.get_session(r.module).doc.indexToPosition(r.index),o=r.module==""?"*scratch*":r.module;this.problems.appendChild(d("div","problem",d("a",{href:"javascript:void(0)",click:()=>v("goto_problem",r)},`${o}:${l.row+1}:${l.column} - ${r.message}`)))})}set_status(t){this.current_module.style="display: none",this.status.style="",this.status.innerText=t}clear_status(){this.render_current_module($().current_module)}render_current_module(t){this.status.style="display: none",this.current_module.innerText=t==""?"*scratch*":t,this.current_module.style=""}render_help(){let t=[["Focus value explorer","F1"],["Navigate value explorer","\u2190 \u2192 \u2191 \u2193 or hjkl"],["Leave value explorer","F1 or Esc"],["Focus call tree view","F2"],["Navigate call tree view","\u2190 \u2192 \u2191 \u2193 or hjkl"],["Leave call tree view","F2 or Esc"],["Focus console logs","F3"],["Navigate console logs","\u2191 \u2193 or jk"],["Leave console logs","F3 or Esc"],["Focus IO trace","F4"],["Leave IO trace","F4 or Esc"],["Jump to definition","F5","gd"],["Expand selection to eval expression","Ctrl-\u2193 or Ctrl-j"],["Collapse selection","Ctrl-\u2191 or Ctrl-k"],["Step into call","F11"],["Step out of call","Shift-F11"],["When in call tree view, jump to return statement","Enter"],["When in call tree view, jump to function arguments","a"],["When in call tree view, jump to error origin","e"],["Clear IO trace","F6"],["(Re)open run window (F7)","F7"]];return d("dialog","help_dialog",d("table","help",d("thead","",d("th","","Action"),d("th","key","Standard"),d("th","key","VIM")),d("tbody","",t.map(([r,n,l])=>d("tr","",d("td","",r),d("td",l==null?{class:"key spanned",colspan:2}:{class:"key"},n),l==null?null:d("td","key",l))))),d("form",{method:"dialog"},d("button",null,"Close")))}toggle_open_app_window_tooltip(t){this.open_app_window_tooltip.classList.toggle("on",t)}};var Yo=e=>new globalThis.app_window.Function("url",`
+          `},"Upload successful"),this.url_share=d("input",{type:"text",readonly:!0,style:"min-width: 30em"}),this.copy_button=d("button",{click:()=>this.copy(),style:"margin-left: 1em"},"Copy URL")),this.close_button=d("button",{style:"display: block; margin: auto",click:()=>this.cancel()},"Close")))}async upload(){this.uploading.style.display="",this.upload_begin.style.display="none";try{await In($().files[""]),this.url_share.value=window.location.toString(),this.upload_finish.style.display=""}catch(t){alert(t.message),this.upload_begin.style.display=""}finally{this.uploading.style.display="none"}}copy(){this.url_share.select(),document.execCommand("copy")}cancel(){this.upload_finish.style.display="none",this.upload_begin.style.display="",this.el.close()}};var ct=class{constructor(t,r){this.open_app_window=this.open_app_window.bind(this),this.files=new He(this),this.tabs={},this.debugger={},t.appendChild(this.root=d("div","root",this.editor_container=d("div","editor_container"),d("div","bottom",this.debugger_container=d("div","debugger",this.debugger_loaded=d("div","debugger_wrapper",d("div","tabs",this.tabs.calltree=d("div","tab",d("a",{click:()=>this.set_active_tab("calltree"),href:"javascript: void(0)"},"Call tree (F2)")),this.tabs.logs=d("div","tab",d("a",{click:()=>this.set_active_tab("logs"),href:"javascript: void(0)"},"Logs (F3)")),this.tabs.io_trace=d("div","tab",d("a",{click:()=>this.set_active_tab("io_trace"),href:"javascript: void(0)"},"IO trace (F4)"))),this.debugger.calltree=d("div",{class:"tab_content",tabindex:0}),this.debugger.logs=d("div",{class:"tab_content logs",tabindex:0}),this.debugger.io_trace=d("div",{class:"tab_content io_trace",tabindex:0})),this.debugger_loading=d("div","debugger_wrapper",this.debugger_loading_message=d("div"))),this.problems_container=d("div",{class:"problems_container",tabindex:0},this.problems=d("div"))),this.files.el,this.statusbar=d("div","statusbar",this.loading_spinner=d("div","spinner"),this.status=d("div","status"),this.current_module=d("div","current_module"),d("a",{class:"statusbar_action first",href:"javascript: void(0)",click:()=>this.clear_io_trace()},"Clear IO trace (F6)"),d("a",{class:"statusbar_action open_app_window_button",href:"javascript: void(0)",click:this.open_app_window},"(Re)open app window (F7)",this.open_app_window_tooltip=d("div",{class:"open_app_window_tooltip"},"Click here to open app window")),this.options=d("div","options",d("label",{for:"standard"},d("input",{id:"standard",type:"radio",name:"keyboard",checked:localStorage.keyboard=="standard"||localStorage.keyboard==null,change:()=>{this.editor.set_keyboard_handler("standard")}}),"Standard"),d("label",{for:"vim"},d("input",{id:"vim",type:"radio",name:"keyboard",checked:localStorage.keyboard=="vim",change:()=>{this.editor.set_keyboard_handler("vim")}}),"VIM")),d("a",{class:"show_help",href:"javascript: void(0)",click:()=>this.help_dialog.showModal()},"Help"),d("a",{class:"github",href:"https://leporello.tech",target:"__blank"},"Website"),d("button",{class:"share_button",click:()=>this.share_dialog.showModal()},"Share"),this.help_dialog=this.render_help(),this.share_dialog=new at().el))),window.addEventListener("keydown",()=>this.clear_status(),!0),window.addEventListener("click",()=>this.clear_status(),!0),window.addEventListener("keydown",n=>{n.key=="F2"&&this.set_active_tab("calltree"),n.key=="F3"&&this.set_active_tab("logs"),n.key=="F4"&&this.set_active_tab("io_trace"),n.key=="F6"&&this.clear_io_trace(),n.key=="F7"&&this.open_app_window()}),this.editor=new Ie(this,this.editor_container),this.calltree=new ot(this,this.debugger.calltree),this.logs=new it(this,this.debugger.logs),this.io_trace=new st(this,this.debugger.io_trace),this.render_current_module(r.current_module),this.set_active_tab("calltree",!0),t.addEventListener("focusin",n=>{let l;this.editor_container.contains(document.activeElement)?this.editor.has_value_explorer()?l=!this.debugger_container.contains(this.editor.value_explorer.return_to):l=!0:l=!1,this.prev_is_focus_in_editor!=l&&(this.prev_is_focus_in_editor=l,Je($(),l))})}set_active_tab(t,r=!1){this.active_tab=t,Object.values(this.tabs).forEach(n=>n.classList.remove("active")),this.tabs[t].classList.add("active"),Object.values(this.debugger).forEach(n=>n.style.display="none"),this.debugger[t].style.display="block",t=="io_trace"&&this.io_trace.render_io_trace($(),!1),r||this.debugger[t].focus(),t=="calltree"&&!r&&v("calltree.show_value_explorer")}clear_io_trace(){v("clear_io_trace")}open_app_window(){this.toggle_open_app_window_tooltip(!1),localStorage.onboarding_open_app_window=!0,sr($())}render_debugger_loading(t){this.debugger_container.style="",this.problems_container.style="display: none",this.debugger_loaded.style="display: 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