forked from qt-creator/qt-creator
280 lines
9.7 KiB
C++
280 lines
9.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 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 Qt Creator.
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**
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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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****************************************************************************/
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#include "qmlengine.h"
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#include <qmljs/parser/qmljsast_p.h>
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#include <qmljs/qmljsmodelmanagerinterface.h>
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#include <debugger/console/console.h>
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#include <coreplugin/editormanager/documentmodel.h>
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#include <texteditor/fontsettings.h>
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#include <texteditor/textdocument.h>
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#include <texteditor/texteditor.h>
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#include <texteditor/texteditorsettings.h>
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#include <QTextBlock>
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using namespace Core;
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using namespace QmlDebug;
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using namespace QmlJS;
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using namespace QmlJS::AST;
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using namespace TextEditor;
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namespace Debugger {
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namespace Internal {
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class ASTWalker : public Visitor
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{
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public:
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void operator()(Node *ast, quint32 *l, quint32 *c)
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{
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done = false;
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line = l;
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column = c;
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Node::accept(ast, this);
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}
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bool preVisit(Node *ast)
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{
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return !done && ast->lastSourceLocation().startLine >= *line;
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}
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//Case 1: Breakpoint is between sourceStart(exclusive) and
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// sourceEnd(inclusive) --> End tree walk.
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//Case 2: Breakpoint is on sourceStart --> Check for the start
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// of the first executable code. Set the line number and
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// column number. End tree walk.
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//Case 3: Breakpoint is on "unbreakable" code --> Find the next "breakable"
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// code and check for Case 2. End tree walk.
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//Add more types when suitable.
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bool visit(UiScriptBinding *ast)
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{
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if (!ast->statement)
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return true;
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quint32 sourceStartLine = ast->firstSourceLocation().startLine;
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quint32 statementStartLine;
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quint32 statementColumn;
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if (ast->statement->kind == Node::Kind_ExpressionStatement) {
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statementStartLine = ast->statement->firstSourceLocation().startLine;
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statementColumn = ast->statement->firstSourceLocation().startColumn;
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} else if (ast->statement->kind == Node::Kind_Block) {
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Block *block = static_cast<Block *>(ast->statement);
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if (!block->statements)
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return true;
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statementStartLine = block->statements->firstSourceLocation().startLine;
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statementColumn = block->statements->firstSourceLocation().startColumn;
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} else {
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return true;
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}
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//Case 1
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//Check for possible relocation within the binding statement
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//Rewritten to (function <token>() { { }})
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//The offset 16 is position of inner lbrace without token length.
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const int offset = 16;
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//Case 2
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if (statementStartLine == *line) {
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if (sourceStartLine == *line)
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*column = offset + ast->qualifiedId->identifierToken.length;
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done = true;
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}
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//Case 3
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if (statementStartLine > *line) {
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*line = statementStartLine;
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if (sourceStartLine == *line)
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*column = offset + ast->qualifiedId->identifierToken.length;
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else
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*column = statementColumn;
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done = true;
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}
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return true;
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}
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bool visit(FunctionDeclaration *ast) {
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quint32 sourceStartLine = ast->firstSourceLocation().startLine;
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quint32 sourceStartColumn = ast->firstSourceLocation().startColumn;
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quint32 statementStartLine = ast->body->firstSourceLocation().startLine;
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quint32 statementColumn = ast->body->firstSourceLocation().startColumn;
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//Case 1
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//Check for possible relocation within the function declaration
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//Case 2
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if (statementStartLine == *line) {
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if (sourceStartLine == *line)
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*column = statementColumn - sourceStartColumn + 1;
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done = true;
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}
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//Case 3
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if (statementStartLine > *line) {
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*line = statementStartLine;
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if (sourceStartLine == *line)
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*column = statementColumn - sourceStartColumn + 1;
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else
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*column = statementColumn;
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done = true;
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}
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return true;
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}
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bool visit(EmptyStatement *ast)
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{
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*line = ast->lastSourceLocation().startLine + 1;
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return true;
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}
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bool visit(VariableStatement *ast) { test(ast); return true; }
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bool visit(VariableDeclarationList *ast) { test(ast); return true; }
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bool visit(VariableDeclaration *ast) { test(ast); return true; }
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bool visit(ExpressionStatement *ast) { test(ast); return true; }
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bool visit(IfStatement *ast) { test(ast); return true; }
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bool visit(DoWhileStatement *ast) { test(ast); return true; }
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bool visit(WhileStatement *ast) { test(ast); return true; }
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bool visit(ForStatement *ast) { test(ast); return true; }
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bool visit(LocalForStatement *ast) { test(ast); return true; }
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bool visit(ForEachStatement *ast) { test(ast); return true; }
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bool visit(LocalForEachStatement *ast) { test(ast); return true; }
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bool visit(ContinueStatement *ast) { test(ast); return true; }
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bool visit(BreakStatement *ast) { test(ast); return true; }
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bool visit(ReturnStatement *ast) { test(ast); return true; }
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bool visit(WithStatement *ast) { test(ast); return true; }
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bool visit(SwitchStatement *ast) { test(ast); return true; }
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bool visit(CaseBlock *ast) { test(ast); return true; }
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bool visit(CaseClauses *ast) { test(ast); return true; }
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bool visit(CaseClause *ast) { test(ast); return true; }
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bool visit(DefaultClause *ast) { test(ast); return true; }
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bool visit(LabelledStatement *ast) { test(ast); return true; }
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bool visit(ThrowStatement *ast) { test(ast); return true; }
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bool visit(TryStatement *ast) { test(ast); return true; }
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bool visit(Catch *ast) { test(ast); return true; }
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bool visit(Finally *ast) { test(ast); return true; }
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bool visit(FunctionExpression *ast) { test(ast); return true; }
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bool visit(DebuggerStatement *ast) { test(ast); return true; }
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void test(Node *ast)
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{
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quint32 statementStartLine = ast->firstSourceLocation().startLine;
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//Case 1/2
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if (statementStartLine <= *line && *line <= ast->lastSourceLocation().startLine)
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done = true;
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//Case 3
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if (statementStartLine > *line) {
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*line = statementStartLine;
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*column = ast->firstSourceLocation().startColumn;
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done = true;
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}
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}
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bool done;
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quint32 *line;
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quint32 *column;
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};
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void appendDebugOutput(QtMsgType type, const QString &message, const QDebugContextInfo &info)
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{
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ConsoleItem::ItemType itemType;
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switch (type) {
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case QtDebugMsg:
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itemType = ConsoleItem::DebugType;
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break;
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case QtWarningMsg:
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itemType = ConsoleItem::WarningType;
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break;
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case QtCriticalMsg:
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case QtFatalMsg:
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itemType = ConsoleItem::ErrorType;
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break;
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default:
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//This case is not possible
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return;
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}
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debuggerConsole()->printItem(new ConsoleItem(itemType, message, info.file, info.line));
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}
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void clearExceptionSelection()
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{
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QList<QTextEdit::ExtraSelection> selections;
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foreach (IEditor *editor, DocumentModel::editorsForOpenedDocuments()) {
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if (auto ed = qobject_cast<TextEditorWidget *>(editor->widget()))
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ed->setExtraSelections(TextEditorWidget::DebuggerExceptionSelection, selections);
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}
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}
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QStringList highlightExceptionCode(int lineNumber, const QString &filePath, const QString &errorMessage)
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{
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QStringList messages;
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QList<IEditor *> editors = DocumentModel::editorsForFilePath(filePath);
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const TextEditor::FontSettings &fontSettings = TextEditor::TextEditorSettings::instance()->fontSettings();
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QTextCharFormat errorFormat = fontSettings.toTextCharFormat(TextEditor::C_ERROR);
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foreach (IEditor *editor, editors) {
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TextEditorWidget *ed = qobject_cast<TextEditorWidget *>(editor->widget());
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if (!ed)
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continue;
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QList<QTextEdit::ExtraSelection> selections;
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QTextEdit::ExtraSelection sel;
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sel.format = errorFormat;
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QTextCursor c(ed->document()->findBlockByNumber(lineNumber - 1));
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const QString text = c.block().text();
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for (int i = 0; i < text.size(); ++i) {
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if (!text.at(i).isSpace()) {
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c.setPosition(c.position() + i);
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break;
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}
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}
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c.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
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sel.cursor = c;
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sel.format.setToolTip(errorMessage);
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selections.append(sel);
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ed->setExtraSelections(TextEditorWidget::DebuggerExceptionSelection, selections);
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messages.append(QString::fromLatin1("%1: %2: %3").arg(filePath).arg(lineNumber).arg(errorMessage));
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}
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return messages;
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}
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} // Internal
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} // Debugger
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