93 строки
2.5 KiB
JavaScript
93 строки
2.5 KiB
JavaScript
var async = require('async'),
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convert = require('./convert.js');
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var SCOPE_ID_MATCHER = /^scope:(\d+):(\d+)$/;
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/**
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* @param {Object} config
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* @param {DebuggerClient} debuggerClient
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*/
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function CallFramesProvider(config, debuggerClient) {
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this._config = config;
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this._debuggerClient = debuggerClient;
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}
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CallFramesProvider.prototype = {
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fetchCallFrames: function(handleResponse) {
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this._debuggerClient.request(
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'backtrace',
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{
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inlineRefs: true,
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fromFrame: 0,
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toFrame: this._config.stackTraceLimit
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},
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function(err, responseBody, responseRefs) {
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if (err) {
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handleResponse(err);
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return;
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}
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this._convertBacktraceToCallFrames(responseBody, responseRefs, handleResponse);
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}.bind(this));
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},
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_convertBacktraceToCallFrames: function(backtraceResponseBody, backtrackResponseRefs, handleResponse) {
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var debuggerFrames = backtraceResponseBody.frames || [];
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async.map(
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debuggerFrames,
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this._convertDebuggerFrameToInspectorFrame.bind(this, backtrackResponseRefs),
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handleResponse);
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},
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_convertDebuggerFrameToInspectorFrame: function(backtrackResponseRefs, frame, done) {
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var scopeChain = frame.scopes.map(function(scope) {
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return {
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object: {
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type: 'object',
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objectId: 'scope:' + frame.index + ':' + scope.index,
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className: 'Object',
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description: 'Object'
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},
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type: convert.v8ScopeTypeToString(scope.type)
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};
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});
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done(null, {
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callFrameId: frame.index.toString(),
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functionName: frame.func.inferredName || frame.func.name,
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location: {
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scriptId: convert.v8ScriptIdToInspectorId(frame.func.scriptId),
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lineNumber: frame.line,
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columnNumber: frame.column
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},
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scopeChain: scopeChain,
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this: convert.v8RefToInspectorObject(frame.receiver)
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});
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},
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isScopeId: function(objectId) {
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return SCOPE_ID_MATCHER.test(objectId);
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},
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resolveScopeId: function(objectId, callback) {
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var scopeIdMatch = SCOPE_ID_MATCHER.exec(objectId);
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if (!scopeIdMatch) throw new Error('Invalid scope id "' + objectId + '"');
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this._debuggerClient.request(
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'scope',
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{
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number: Number(scopeIdMatch[2]),
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frameNumber: Number(scopeIdMatch[1])
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},
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function(err, result) {
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if (err)
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callback(err);
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else
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callback(null, result.object.ref);
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});
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}
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};
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exports.CallFramesProvider = CallFramesProvider;
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