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593c8f8de3
The debugger can now correctly break on exceptions and show the corresponding line in the inspector. It correctly understands which scripts are internal to sky and does not pause during them. There is still a ton to make work here (including stacktraces which I have not tested), but basic functionality seems to work. The current implementation is not smart enough to unpause the inspector when the frontend disconnects. BUG=434510,434513 R=abarth@chromium.org Review URL: https://codereview.chromium.org/727593004
125 lines
2.9 KiB
Plaintext
125 lines
2.9 KiB
Plaintext
<import src="debug.sky" as="debug" />
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<script>
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function Runtime(delegate) {
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this.delegate_ = delegate;
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}
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Runtime.prototype.enable = function() {
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this.delegate_.sendMessage("Runtime.executionContextCreated", {
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"context": {
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"frameId": 1,
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"id": 1,
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}
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});
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return {
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result: true,
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};
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};
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Runtime.prototype.callFunctionOn = function(params) {
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var object = g_objectRegistry.lookup(params.objectId);
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// This is a horrible hack:
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var functionName = params.functionDeclaration.match(/^function (\w+)\(/)[1];
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var expression = params.functionDeclaration + "; return " + functionName + ";";
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var wasThrown = false;
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var value;
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try {
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var func = new Function('', expression)();
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value = func(object);
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} catch (e) {
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value = e;
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wasThrown = true;
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}
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return makeResult(params, value, wasThrown);
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}
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// FIXME: This should release all objects associated with an object
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// group, see InjectedScriptSource.js for an example. Just have to
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// track which object ids are associated with which object groups first.
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Runtime.prototype.releaseObjectGroup = debug.loggingStub("releaseObjectGroup");
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// See InjectedScript._bind for a fancier version of this:
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function RemoteObjectRegistery() {
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this.lastObjectId = 0;
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this.objectsById = [];
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}
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RemoteObjectRegistery.prototype.register = function(object) {
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var objectId = ++this.lastObjectId;
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this.objectsById[objectId] = object;
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return String(objectId);
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}
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RemoteObjectRegistery.prototype.lookup = function(objectId) {
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return this.objectsById[Number(objectId)];
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}
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var g_objectRegistry = new RemoteObjectRegistery();
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function makeResult(params, value, wasThrown) {
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var type = typeof(value)
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var result = {
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"result": {
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"type": type,
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},
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"wasThrown": wasThrown,
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};
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// Unclear why this often fails with:
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// "TypeError: Cannot convert object to primitive value"
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try {
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result['result']['description'] = String(value);
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} catch (e) {}
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if (type == "object") {
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result["result"]["objectId"] = g_objectRegistry.register(value);
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}
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if (params.returnByValue) {
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result["result"]["value"] = value;
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}
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if (wasThrown) {
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// If we don"t have exceptionDetails, inspector hits an exception.
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result["exceptionDetails"] = {
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"text": value.message,
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"url": "",
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"line": 0,
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"column": 0,
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"stackTrace": [{
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"functionName": "",
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"scriptId": "1",
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"url": "",
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"lineNumber": 0,
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"columnNumber": 0
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}]
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}
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}
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return result;
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}
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// FIXME: See Blink"s inspected-script-source.js InjectedScript.RemoteObject.
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Runtime.prototype.evaluate = function(params) {
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var wasThrown = false;
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var value;
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try {
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value = eval(params.expression);
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} catch (e) {
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value = e;
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wasThrown = true;
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}
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return makeResult(params, value, wasThrown);
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}
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Runtime.prototype.getProperties = function(params) {
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// FIXME: Unclear what this is for.
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return [];
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}
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module.exports = Runtime;
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</script>
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