DevTools: Extend Runtime.CallArgument to pass numbers that can not be JSON-stringified.

These numbers are: NaN, Infinity, -Infinity, -0.

R=pfeldman
TEST=various existing tests

Review URL: https://codereview.chromium.org/200423008

git-svn-id: svn://svn.chromium.org/blink/trunk@169376 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/inspector/InjectedScriptSource.js

@@ -581,7 +581,10 @@ InjectedScript.prototype = {
 
             return resolvedArg;
         } else if ("value" in callArgumentJson) {
-            return callArgumentJson.value;
+            var value = callArgumentJson.value;
+            if (callArgumentJson.type === "number" && typeof value !== "number")
+                value = Number(value);
+            return value;
         }
         return undefined;
     },
@@ -1007,8 +1010,19 @@ InjectedScript.RemoteObject = function(object, objectGroupName, forceValueType,
             this.subtype = "null";
 
         // Provide user-friendly number values.
-        if (this.type === "number")
+        if (this.type === "number") {
             this.description = toStringDescription(object);
+            // Override "value" property for values that can not be JSON-stringified.
+            switch (this.description) {
+            case "NaN":
+            case "Infinity":
+            case "-Infinity":
+            case "-0":
+                this.value = this.description;
+                break;
+            }
+        }
+
         return;
     }
 

third_party/WebKit/Source/devtools/front_end/RemoteObject.js

@@ -214,6 +214,10 @@ WebInspector.RemoteObjectImpl = function(target, objectId, type, subtype, value,
         console.assert(type !== "object" || value === null);
         this._description = description || (value + "");
         this._hasChildren = false;
+        // Handle special numbers: NaN, Infinity, -Infinity, -0.
+        if (type === "number" && typeof value !== "number")
+            this.value = Number(value);
+        else
             this.value = value;
     }
 }
@@ -385,12 +389,8 @@ WebInspector.RemoteObjectImpl.prototype = {
         // where property was defined; so do we.
         var setPropertyValueFunction = "function(a, b) { this[a] = b; }";
 
-        // Special case for NaN, Infinity, -Infinity, -0.
-        if (result.type === "number" && String(result.value) !== result.description)
-            setPropertyValueFunction = "function(a) { this[a] = " + result.description + "; }";
-
-        delete result.description; // Optimize on traffic.
-        this._runtimeAgent.callFunctionOn(this._objectId, setPropertyValueFunction, [{ value:name }, result], true, undefined, undefined, propertySetCallback.bind(this));
+        var argv = [{ value: name }, this._toCallArgument(result)]
+        this._runtimeAgent.callFunctionOn(this._objectId, setPropertyValueFunction, argv, true, undefined, undefined, propertySetCallback.bind(this));
 
         /**
          * @param {?Protocol.Error} error
@@ -407,6 +407,15 @@ WebInspector.RemoteObjectImpl.prototype = {
         }
     },
 
+    /**
+     * @param {!RuntimeAgent.RemoteObject} object
+     * @return {!RuntimeAgent.CallArgument}
+     */
+    _toCallArgument: function(object)
+    {
+        return { value: object.value, objectId: object.objectId, type: /** @type {!RuntimeAgent.CallArgumentType.<string>} */ (object.type) };
+    },
+
     /**
      * @param {function(?DOMAgent.NodeId)} callback
      */
@@ -645,21 +654,7 @@ WebInspector.ScopeRemoteObject.prototype = {
      */
     doSetObjectPropertyValue: function(result, name, callback)
     {
-        var newValue;
-
-        switch (result.type) {
-            case "undefined":
-                newValue = {};
-                break;
-            case "object":
-            case "function":
-                newValue = { objectId: result.objectId };
-                break;
-            default:
-                newValue = { value: result.value };
-        }
-
-        this._debuggerAgent.setVariableValue(this._scopeRef.number, name, newValue, this._scopeRef.callFrameId, this._scopeRef.functionId, setVariableValueCallback.bind(this));
+        this._debuggerAgent.setVariableValue(this._scopeRef.number, name, this._toCallArgument(result), this._scopeRef.callFrameId, this._scopeRef.functionId, setVariableValueCallback.bind(this));
 
         /**
          * @param {?Protocol.Error} error

third_party/WebKit/Source/devtools/protocol.json

@@ -657,7 +657,7 @@
                     { "name": "type", "type": "string", "enum": ["object", "function", "undefined", "string", "number", "boolean"], "description": "Object type." },
                     { "name": "subtype", "type": "string", "optional": true, "enum": ["array", "null", "node", "regexp", "date"], "description": "Object subtype hint. Specified for <code>object</code> type values only." },
                     { "name": "className", "type": "string", "optional": true, "description": "Object class (constructor) name. Specified for <code>object</code> type values only." },
-                    { "name": "value", "type": "any", "optional": true, "description": "Remote object value (in case of primitive values or JSON values if it was requested)." },
+                    { "name": "value", "type": "any", "optional": true, "description": "Remote object value in case of primitive values or JSON values (if it was requested), or description string if the value can not be JSON-stringified (like NaN, Infinity, -Infinity, -0)." },
                     { "name": "description", "type": "string", "optional": true, "description": "String representation of the object." },
                     { "name": "objectId", "$ref": "RemoteObjectId", "optional": true, "description": "Unique object identifier (for non-primitive values)." },
                     { "name": "preview", "$ref": "ObjectPreview", "optional": true, "description": "Preview containing abbreviated property values.", "hidden": true }
@@ -718,8 +718,9 @@
                 "type": "object",
                 "description": "Represents function call argument. Either remote object id <code>objectId</code> or primitive <code>value</code> or neither of (for undefined) them should be specified.",
                 "properties": [
-                    { "name": "value", "type": "any", "optional": true, "description": "Primitive value." },
-                    { "name": "objectId", "$ref": "RemoteObjectId", "optional": true, "description": "Remote object handle." }
+                    { "name": "value", "type": "any", "optional": true, "description": "Primitive value, or description string if the value can not be JSON-stringified (like NaN, Infinity, -Infinity, -0)." },
+                    { "name": "objectId", "$ref": "RemoteObjectId", "optional": true, "description": "Remote object handle." },
+                    { "name": "type", "optional": true, "hidden": true, "type": "string", "enum": ["object", "function", "undefined", "string", "number", "boolean"], "description": "Object type." }
                 ]
             },
             {