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
|
/*
* OpenSCAD (www.openscad.at)
* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU 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 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 OPENSCAD_H
#define OPENSCAD_H
#include <QHash>
#include <QVector>
class Value;
class Expression;
class AbstractFunction;
class BuiltinFunction;
class Function;
class AbstractModule;
class ModuleInstanciation;
class Module;
class Context;
class AbstractNode;
class Value
{
public:
double x, y, z;
bool is_vector;
bool is_nan;
Value() : x(0), y(0), z(0), is_vector(false), is_nan(true) { }
Value(double v1) : x(v1), y(0), z(0), is_vector(false), is_nan(false) { }
Value(double v1, double v2, double v3) : x(v1), y(v2), z(v3), is_vector(true), is_nan(false) { }
Value(const Value &v) : x(v.x), y(v.y), z(v.z), is_vector(v.is_vector), is_nan(v.is_nan) { }
Value& operator = (const Value &v);
Value operator + (const Value &v) const;
Value operator - (const Value &v) const;
Value operator * (const Value &v) const;
Value operator / (const Value &v) const;
Value operator % (const Value &v) const;
Value inv() const;
};
class Expression
{
public:
QVector<Expression*> children;
Value const_value;
QString var_name;
QString call_funcname;
QVector<QString> call_argnames;
// Math operators: * / % + -
// Invert (prefix '-'): I
// Constant value: C
// Variable: V
// Function call: F
char type;
Expression();
~Expression();
Value evaluate(Context *context);
};
class AbstractFunction
{
public:
virtual ~AbstractFunction();
virtual Value evaluate(Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
};
class BuiltinFunction : public AbstractFunction
{
public:
typedef Value (*eval_func_t)(const QVector<Value> &args);
eval_func_t eval_func;
BuiltinFunction(eval_func_t f) : eval_func(f) { }
virtual ~BuiltinFunction();
virtual Value evaluate(Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
};
class Function : public AbstractFunction
{
public:
QVector<QString> argnames;
QVector<Expression*> argexpr;
Expression expr;
Function() { }
virtual ~Function();
virtual Value evaluate(Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
};
extern QHash<QString, AbstractFunction*> builtin_functions;
extern void initialize_builtin_functions();
extern void destroy_builtin_functions();
class AbstractModule
{
public:
virtual ~AbstractModule();
virtual AbstractNode *evaluate(Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
};
class ModuleInstanciation
{
public:
QString label;
QString modname;
QVector<QString> argnames;
QVector<Expression*> argexpr;
ModuleInstanciation() { }
~ModuleInstanciation();
};
class Module : public AbstractModule
{
public:
QVector<QString> argnames;
QVector<Expression*> argexpr;
QHash<QString, Expression*> assignments;
QHash<QString, AbstractFunction*> functions;
QHash<QString, AbstractModule*> modules;
QVector<ModuleInstanciation> children;
Module() { }
virtual ~Module();
virtual AbstractNode *evaluate(Context *ctx, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
};
extern QHash<QString, AbstractModule*> builtin_modules;
extern void initialize_builtin_modules();
extern void destroy_builtin_modules();
class Context
{
public:
Context *parent;
QHash<QString, Value> variables;
QHash<QString, AbstractFunction*> *functions_p;
QHash<QString, AbstractModule*> *modules_p;
Context(Context *parent) : parent(parent) { }
void args(const QVector<QString> &argnames, const QVector<Expression*> &argexpr, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues);
Value lookup_variable(QString name);
Value evaluate_function(QString name, const QVector<QString> &argnames, const QVector<Value> &argvalues);
AbstractNode *evaluate_module(QString name, const QVector<QString> &argnames, const QVector<Value> &argvalues);
};
class AbstractNode
{
public:
QVector<AbstractNode*> children;
};
#endif
|
