From 0c928b124c25b01e4ff7f151f5c98fdf9cb7d532 Mon Sep 17 00:00:00 2001
From: Ryan Dahl <ry@tinyclouds.org>
Date: Wed, 22 Dec 2010 23:31:54 -0800
Subject: [PATCH] debugger: Clean up a few commands

---
 lib/_debugger.js | 61 ++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 49 insertions(+), 12 deletions(-)

diff --git a/lib/_debugger.js b/lib/_debugger.js
index d3936def82..802e2da1e6 100644
--- a/lib/_debugger.js
+++ b/lib/_debugger.js
@@ -174,7 +174,11 @@ Client.prototype.reqEval = function(expression, cb) {
     arguments: { expression: expression }
   };
 
-  if (this.currentFrame == NO_FRAME) req.arguments.global = true;
+  if (this.currentFrame == NO_FRAME) {
+    req.arguments.global = true;
+  } else {
+    req.arguments.frame = this.currentFrame;
+  }
 
   this.req(req, function (res) {
     if (cb) cb(res.body);
@@ -215,13 +219,27 @@ Client.prototype.reqScripts = function(cb) {
 
 
 Client.prototype.reqContinue = function(cb) {
-  this.req({ command: 'continue' } , function (res) {
+  this.req({ command: 'continue' }, function (res) {
+    if (cb) cb(res);
+  });
+};
+
+// c.next(1, cb);
+Client.prototype.step = function(action, count, cb) {
+  var req = {
+    command: 'continue',
+    arguments: { stepaction: action, stepcount: count }
+  };
+
+  this.req(req, function (res) {
     if (cb) cb(res);
   });
 };
 
 
-var helpMessage = "Commands: scripts, backtrace, version, eval, help, quit";
+
+
+var helpMessage = "Commands: print, step, next, continue, scripts, backtrace, version, quit";
 
 function SourceUnderline(source_text, position) {
   if (!source_text) {
@@ -303,7 +321,7 @@ function startInterface() {
   });
 
   term.on('line', function(cmd) {
-    if (cmd == 'quit') {
+    if (cmd == 'quit' || cmd == 'q' || cmd == 'exit') {
       tryQuit();
     } else if (/^help/.test(cmd)) {
       console.log(helpMessage);
@@ -322,9 +340,7 @@ function startInterface() {
         } else if (bt.totalFrames == 0) {
           console.log('(empty stack)');
         } else {
-          var result = 'Frames #' + bt.fromFrame +
-                       ' to #' + (bt.toFrame - 1) +
-                       ' of ' + bt.totalFrames + '\n';
+          var result = '';
           for (j = 0; j < bt.frames.length; j++) {
             if (j != 0) result += '\n';
             result += bt.frames[j].text;
@@ -336,7 +352,17 @@ function startInterface() {
 
     } else if (/^continue/.test(cmd) || /^c/.test(cmd)) {
       c.reqContinue(function (res) {
-         // Wait for break point. (disable raw mode?)
+        // Wait for break point. (disable raw mode?)
+      });
+
+    } else if (/^next/.test(cmd) || /^n/.test(cmd)) {
+      c.step('next', 1, function (res) {
+        // Wait for break point. (disable raw mode?)
+      });
+
+    } else if (/^step/.test(cmd) || /^s/.test(cmd)) {
+      c.step('in', 1, function (res) {
+        // Wait for break point. (disable raw mode?)
       });
 
     } else if (/^scripts/.test(cmd)) {
@@ -350,11 +376,22 @@ function startInterface() {
         term.prompt();
       });
 
-    } else if (/^eval/.test(cmd)) {
-      c.reqEval(cmd.slice(5), function (res) {
-        console.log(res);
+    } else if (/^print/.test(cmd) || /^p/.test(cmd)) {
+      var i = cmd.indexOf(' ');
+      if (i < 0) {
+        console.log("print [expression]");
         term.prompt();
-      });
+      } else {
+        cmd = cmd.slice(i);
+        c.reqEval(cmd, function (res) {
+          if (res) {
+            console.log(res.text);
+          } else {
+            console.log(res);
+          }
+          term.prompt();
+        });
+      }
 
     } else {
       if (!/^\s*$/.test(cmd)) {