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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit114a878c64ce6f8223cfd22d76a20eb16d177e5e (patch)
treeacaf47eb0fa12142d3896416a69e74cbf5a72242 /buildtools/lib/parsers/autotools/autotoolsast.h
downloadtdevelop-114a878c64ce6f8223cfd22d76a20eb16d177e5e.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdevelop@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ * Copyright (C) 2005 by Alexander Dymo *
+ * adymo@kdevelop.org *
+ * *
+ * Copyright (c) 2005 by Matt Rogers *
+ * mattr@kde.org *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU Library General Public License as *
+ * published by the Free Software Foundation; either version 2 of the *
+ * License, or (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU Library General Public *
+ * License along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+#ifndef AUTOTOOLSAST_H
+#define AUTOTOOLSAST_H
+
+#include <qstringlist.h>
+
+/**
+@file autotools.h
+Abstract Syntax Tree (AST) class declarations.
+*/
+
+namespace AutoTools
+{
+
+/**
+ * AST node.
+ * This is the base class. Objects of this type are not created by the parser.
+ *
+ * Each AST node holds the list of its children which are always deleted in the
+ * destructor. This way, it's possible call delete for only root AST node and
+ * others will be deleted automatically.
+ *
+ * Each AST node also knows how to write the information back into .pro file.
+ */
+class AST
+{
+public:
+ /**Type of AST node.*/
+ enum NodeType {
+ ProjectAST, ///< Project, scope or function scope.
+ AssignmentAST, ///< Variable assignment.
+ TargetAST, ///< Automake target
+ MakefileConditionalAST, ///< Makefile.am conditional
+ NewLineAST, ///< Line feed.
+ CommentAST ///< Comment.
+ };
+
+ /** Constructs AST with given node type.*/
+ AST(NodeType nodeType): m_nodeType(nodeType), m_depth(0) {}
+ virtual ~AST();
+
+ /**
+ * Adds child AST node to this node. Despite this function is virtual,
+ * reimplementations should call it to make automatic destruction of
+ * AST tree possible.*/
+ virtual void addChildAST(AST *node);
+
+ /**
+ * Writes information stored in the AST into the @p buffer.
+ * This is a default implementation which iterates over child nodes
+ * and calls writeBack for each child node.
+ */
+ virtual void writeBack(QString &buffer);
+
+ /** @return The type of the node.*/
+ virtual NodeType nodeType() const { return m_nodeType; }
+
+ /** Sets the depth of the node in AST.*/
+ void setDepth(int depth) { m_depth = depth; }
+
+ /** @return The depth of the node in AST.*/
+ int depth() const { return m_depth; }
+
+ /** @return The indentation string based on node depth.*/
+ virtual QString indentation();
+
+ //! \return true if this AST has children
+ bool hasChildren() const;
+
+ /**
+ * Get the children of this ast
+ * \return the list of this ast's childre
+ */
+ QValueList<AST*> children() const;
+
+
+
+protected:
+ NodeType m_nodeType;
+ QValueList<AST*> m_children;
+
+private:
+ int m_depth;
+
+};
+
+
+/**
+ * Project AST node.
+ * Represents complete projects, scopes and function scopes.
+ * Examples:
+ * @code
+ * scopename{
+ * var=value
+ * }
+ * function(args){
+ * var=value
+ * }
+ * @endcode
+ */
+class ProjectAST: public AST
+{
+public:
+ /**The kind of a project node.*/
+ enum Kind
+ {
+ Project, ///< Project
+ Target, ///< Custom Automake Target
+ ConditionalScope, ///< Automake Conditional
+ Rule, ///< Automake Rule
+ Empty ///< Project does not exist. the AST is empty
+ };
+
+ /** Constructs a project node of given @p kind. */
+ ProjectAST(Kind kind = Project): AST(AST::ProjectAST), m_kind(kind) {}
+
+ virtual void writeBack(QString &buffer);
+ virtual void addChildAST(AST *node);
+
+ /** @return true if this node is a project.*/
+ bool isProject() const { return m_kind == Project; }
+
+ bool isRule() const { return m_kind == Rule; }
+
+ /** @return true if this node is an automake conditional */
+ bool isConditionalScope() const { return m_kind == ConditionalScope; }
+
+ /** @return true if this node is empty.*/
+ bool isEmpty() const { return m_kind == Empty; }
+
+ /**Scoped identifier (scope name or rule).*/
+ QString scopedID;
+
+ /**Function arguments. Empty for other kinds of projects.*/
+ QString args;
+
+ /** The automake conditional has an else attached */
+ bool hasElse;
+
+ /**List of statements.*/
+ QValueList<AutoTools::AST*> statements;
+
+private:
+ Kind m_kind;
+
+};
+
+
+/**
+ * Assignment AST node.
+ * Represents assignments, for example:
+ * \code
+ * var=value
+ * \endcode
+ *
+ * Values can be specified on several lines and
+ * each line is stored as a string in the list of values.@n
+ * For example, if we have in .pro:
+ * \code
+ * SOURCES=a.cpp \
+ * b.cpp c.cpp
+ * \endcode
+ * then values will be stored as a two elements list:
+ * \code
+ * a.cpp
+ * b.cpp c.cpp
+ * \endcode
+ */
+class AssignmentAST: public AST
+{
+public:
+ AssignmentAST(): AST(AST::AssignmentAST) {}
+
+ virtual void writeBack(QString &buffer);
+
+ /**Scoped name of the variable.*/
+ QString scopedID;
+
+ /**Operator.*/
+ QString op;
+
+ /**List of values.*/
+ QStringList values;
+};
+
+class AutomakeTargetAST : public AST
+{
+public:
+ AutomakeTargetAST() : AST(AST::TargetAST) {}
+
+ virtual void writeBack( QString& buffer );
+
+ /// The name of the target
+ QString target;
+
+ /// The dependencies for the target, if any
+ QStringList deps;
+};
+
+class ConditionAST : public AST
+{
+public:
+ ConditionAST() : AST( AST::MakefileConditionalAST ) {}
+
+ virtual void writeBack( QString& buffer );
+
+ /// The keyword for the condition (if, else, endif)
+ QString type;
+
+ /// The name of the condition
+ QString conditionName;
+};
+
+/**
+ * New line AST node.
+ * Represents line feeds in files.
+ */
+class NewLineAST: public AST
+{
+public:
+ NewLineAST(): AST(AST::NewLineAST) {}
+
+ virtual void writeBack(QString &buffer);
+
+};
+
+
+/**
+ * Comment AST node.
+ * Represents comments.
+ */
+class CommentAST: public AST
+{
+public:
+ CommentAST(): AST(AST::CommentAST) {}
+
+ virtual void writeBack(QString &buffer);
+
+ /**Comment text.*/
+ QString comment;
+
+};
+
+}
+
+#endif
+
+// kate: indent-mode csands; space-indent off; tab-width 4; auto-insert-doxygen on;