From e326847287e7bfb409a344e8adfa74f9563d146a Mon Sep 17 00:00:00 2001
From: TopchetoEU <36534413+TopchetoEU@users.noreply.github.com>
Date: Sun, 5 Nov 2023 19:44:35 +0200
Subject: [PATCH] feat: send value stack to debug client

---
 .../jscript/engine/debug/SimpleDebugger.java  |  6 ++++--
 .../jscript/engine/frame/CodeFrame.java       | 21 +++++++++++++++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/me/topchetoeu/jscript/engine/debug/SimpleDebugger.java b/src/me/topchetoeu/jscript/engine/debug/SimpleDebugger.java
index 32a5984..bc6d632 100644
--- a/src/me/topchetoeu/jscript/engine/debug/SimpleDebugger.java
+++ b/src/me/topchetoeu/jscript/engine/debug/SimpleDebugger.java
@@ -40,7 +40,7 @@ public class SimpleDebugger implements Debugger {
     public static final String VSCODE_SHALLOW_COPY = "function(){let t={__proto__:this.__proto__\n},e=Object.getOwnPropertyNames(this);for(let r=0;r<e.length;++r){let i=e[r],n=i>>>0;if(String(n>>>0)===i&&n>>>0!==4294967295)continue;let s=Object.getOwnPropertyDescriptor(this,i);s&&Object.defineProperty(t,i,s)}return t}";
     public static final String VSCODE_FLATTEN_ARRAY = "function(t,e){let r={\n},i=t===-1?0:t,n=e===-1?this.length:t+e;for(let s=i;s<n&&s<this.length;++s){let o=Object.getOwnPropertyDescriptor(this,s);o&&Object.defineProperty(r,s,o)}return r}";
     public static final String VSCODE_CALL = "function(t){return t.call(this)\n}";
-    
+
     private static enum State {
         RESUMED,
         STEPPING_IN,
@@ -98,7 +98,7 @@ public class SimpleDebugger implements Debugger {
         public CodeFrame frame;
         public CodeFunction func;
         public int id;
-        public ObjectValue local, capture, global;
+        public ObjectValue local, capture, global, valstack;
         public JSONMap serialized;
         public Location location;
         public boolean debugData = false;
@@ -120,6 +120,7 @@ public class SimpleDebugger implements Debugger {
             this.capture = frame.getCaptureScope(ctx, true);
             this.local.setPrototype(ctx, capture);
             this.capture.setPrototype(ctx, global);
+            this.valstack = frame.getValStackScope(ctx);
 
             if (location != null) {
                 debugData = true;
@@ -131,6 +132,7 @@ public class SimpleDebugger implements Debugger {
                         .add(new JSONMap().set("type", "local").set("name", "Local Scope").set("object", serializeObj(ctx, local)))
                         .add(new JSONMap().set("type", "closure").set("name", "Closure").set("object", serializeObj(ctx, capture)))
                         .add(new JSONMap().set("type", "global").set("name", "Global Scope").set("object", serializeObj(ctx, global)))
+                        .add(new JSONMap().set("type", "other").set("name", "Value Stack").set("object", serializeObj(ctx, valstack)))
                     );
             }
         }
diff --git a/src/me/topchetoeu/jscript/engine/frame/CodeFrame.java b/src/me/topchetoeu/jscript/engine/frame/CodeFrame.java
index 61e777e..57a4e05 100644
--- a/src/me/topchetoeu/jscript/engine/frame/CodeFrame.java
+++ b/src/me/topchetoeu/jscript/engine/frame/CodeFrame.java
@@ -1,5 +1,6 @@
 package me.topchetoeu.jscript.engine.frame;
 
+import java.util.List;
 import java.util.Stack;
 
 import me.topchetoeu.jscript.Location;
@@ -82,6 +83,26 @@ public class CodeFrame {
 
         return new ScopeValue(scope.captures, names);
     }
+    public ObjectValue getValStackScope(Context ctx) {
+        return new ObjectValue() {
+            @Override
+            protected Object getField(Context ctx, Object key) {
+                var i = (int)Values.toNumber(ctx, key);
+                if (i < 0 || i >= stackPtr) return null;
+                else return stack[i];
+            }
+            @Override
+            protected boolean hasField(Context ctx, Object key) {
+                return true;
+            }
+            @Override
+            public List<Object> keys(boolean includeNonEnumerable) {
+                var res = super.keys(includeNonEnumerable);
+                for (var i = 0; i < stackPtr; i++) res.add(i);
+                return res;
+            }
+        };
+    }
 
     public void addTry(int n, int catchN, int finallyN) {
         var res = new TryCtx(codePtr + 1, n, catchN, finallyN);