1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
/***************************************************************************
* Copyright (C) 2005 by Alexander Dymo *
* adymo@tdevelop.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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef AUTOTOOLSAST_H
#define AUTOTOOLSAST_H
#include <tqstringlist.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(TQString &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 TQString 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
*/
TQValueList<AST*> children() const;
protected:
NodeType m_nodeType;
TQValueList<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(TQString &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).*/
TQString scopedID;
/**Function arguments. Empty for other kinds of projects.*/
TQString args;
/** The automake conditional has an else attached */
bool hasElse;
/**List of statements.*/
TQValueList<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(TQString &buffer);
/**Scoped name of the variable.*/
TQString scopedID;
/**Operator.*/
TQString op;
/**List of values.*/
TQStringList values;
};
class AutomakeTargetAST : public AST
{
public:
AutomakeTargetAST() : AST(AST::TargetAST) {}
virtual void writeBack( TQString& buffer );
/// The name of the target
TQString target;
/// The dependencies for the target, if any
TQStringList deps;
};
class ConditionAST : public AST
{
public:
ConditionAST() : AST( AST::MakefileConditionalAST ) {}
virtual void writeBack( TQString& buffer );
/// The keyword for the condition (if, else, endif)
TQString type;
/// The name of the condition
TQString conditionName;
};
/**
* New line AST node.
* Represents line feeds in files.
*/
class NewLineAST: public AST
{
public:
NewLineAST(): AST(AST::NewLineAST) {}
virtual void writeBack(TQString &buffer);
};
/**
* Comment AST node.
* Represents comments.
*/
class CommentAST: public AST
{
public:
CommentAST(): AST(AST::CommentAST) {}
virtual void writeBack(TQString &buffer);
/**Comment text.*/
TQString comment;
};
}
#endif
// kate: indent-mode csands; space-indent off; tab-width 4; auto-insert-doxygen on;
|
