/****************************************************************************
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**
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** Copyright (C) 2018 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt VS Tools.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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using System;
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using System.Threading.Tasks;
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using Microsoft.VisualStudio;
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using Microsoft.VisualStudio.Debugger.Interop;
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namespace QtVsTools.Qml.Debug.AD7
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{
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using V4;
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sealed partial class Expression :
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IDebugExpression2 // "This interface represents a parsed expression ready for binding
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// and evaluating."
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{
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public string ExpressionString { get; private set; }
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public StackFrame StackFrame { get; private set; }
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public QmlEngine Engine { get; private set; }
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public Program Program { get; private set; }
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public QmlDebugger Debugger { get; private set; }
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public CodeContext CodeContext { get; private set; }
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public static Expression Create(StackFrame frame, string expr)
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{
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return new Expression
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{
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ExpressionString = expr,
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StackFrame = frame,
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Engine = frame.Engine,
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Program = frame.Program,
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Debugger = frame.Debugger,
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CodeContext = frame.Context,
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};
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}
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private Expression()
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{ }
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int IDebugExpression2.EvaluateSync(
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enum_EVALFLAGS dwFlags,
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uint dwTimeout,
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IDebugEventCallback2 pExprCallback,
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out IDebugProperty2 ppResult)
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{
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ppResult = null;
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var value = Debugger.Evaluate(StackFrame.FrameNumber, ExpressionString);
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if (value == null || value is JsError)
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return VSConstants.S_FALSE;
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Program.Refresh();
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value.Name = ExpressionString;
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ppResult = Property.Create(StackFrame, 0, value);
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return VSConstants.S_OK;
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}
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int IDebugExpression2.EvaluateAsync(
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enum_EVALFLAGS dwFlags,
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IDebugEventCallback2 pExprCallback)
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{
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Task.Run(() =>
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{
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var value = Debugger.Evaluate(StackFrame.FrameNumber, ExpressionString);
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if (value != null)
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value.Name = ExpressionString;
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Program.Refresh();
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DebugEvent.Send(new ExpressionEvaluationCompleteEvent(
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pExprCallback, this, Property.Create(StackFrame, 0, value)));
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});
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return VSConstants.S_OK;
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}
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}
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}
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