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
|
/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmForEachCommand.h"
bool cmForEachFunctionBlocker::
IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf)
{
// Prevent recusion and don't let this blobker block its own
// commands.
if (this->Executing)
{
return false;
}
if (!cmSystemTools::Strucmp(lff.Name.c_str(),"foreach"))
{
// record the number of nested foreach commands
this->Depth++;
}
else if (!cmSystemTools::Strucmp(lff.Name.c_str(),"endforeach"))
{
// if this is the endofreach for this statement
if (!this->Depth)
{
// at end of for each execute recorded commands
// store the old value
std::string oldDef;
if (mf.GetDefinition(this->Args[0].c_str()))
{
oldDef = mf.GetDefinition(this->Args[0].c_str());
}
this->Executing = true;
std::vector<std::string>::const_iterator j = this->Args.begin();
++j;
std::string tmps;
cmListFileArgument arg;
for( ; j != this->Args.end(); ++j)
{
// set the variable to the loop value
mf.AddDefinition(this->Args[0].c_str(),j->c_str());
// Invoke all the functions that were collected in the block.
for(unsigned int c = 0; c < this->Functions.size(); ++c)
{
mf.ExecuteCommand(this->Functions[c]);
}
}
// restore the variable to its prior value
mf.AddDefinition(this->Args[0].c_str(),oldDef.c_str());
mf.RemoveFunctionBlocker(lff);
return true;
}
else
{
// close out a nested foreach
this->Depth--;
}
}
// record the command
this->Functions.push_back(lff);
// always return true
return true;
}
bool cmForEachFunctionBlocker::
ShouldRemove(const cmListFileFunction& lff, cmMakefile& mf)
{
if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endforeach"))
{
std::vector<std::string> expandedArguments;
mf.ExpandArguments(lff.Arguments, expandedArguments);
if ((!expandedArguments.empty() &&
(expandedArguments[0] == this->Args[0]))
|| mf.IsOn("CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS"))
{
return true;
}
}
return false;
}
void cmForEachFunctionBlocker::
ScopeEnded(cmMakefile &mf)
{
cmSystemTools::Error("The end of a CMakeLists file was reached with a "
"FOREACH statement that was not closed properly. "
"Within the directory: ",
mf.GetCurrentDirectory());
}
bool cmForEachCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 1)
{
this->SetError("called with incorrect number of arguments");
return false;
}
// create a function blocker
cmForEachFunctionBlocker *f = new cmForEachFunctionBlocker();
if ( args.size() > 1 )
{
if ( args[1] == "RANGE" )
{
int start = 0;
int stop = 0;
int step = 0;
if ( args.size() == 3 )
{
stop = atoi(args[2].c_str());
}
if ( args.size() == 4 )
{
start = atoi(args[2].c_str());
stop = atoi(args[3].c_str());
}
if ( args.size() == 5 )
{
start = atoi(args[2].c_str());
stop = atoi(args[3].c_str());
step = atoi(args[4].c_str());
}
if ( step == 0 )
{
if ( start > stop )
{
step = -1;
}
else
{
step = 1;
}
}
if (
(start > stop && step > 0) ||
(start < stop && step < 0) ||
step == 0
)
{
cmOStringStream str;
str << "called with incorrect range specification: start ";
str << start << ", stop " << stop << ", step " << step;
this->SetError(str.str().c_str());
return false;
}
std::vector<std::string> range;
char buffer[100];
range.push_back(args[0]);
int cc;
for ( cc = start; ; cc += step )
{
if ( (step > 0 && cc > stop) || (step < 0 && cc < stop) )
{
break;
}
sprintf(buffer, "%d", cc);
range.push_back(buffer);
if ( cc == stop )
{
break;
}
}
f->Args = range;
}
else
{
f->Args = args;
}
}
else
{
f->Args = args;
}
this->Makefile->AddFunctionBlocker(f);
return true;
}
|
