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
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmForEachCommand.h"
#include <memory> // IWYU pragma: keep
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
#include "cmAlgorithms.h"
#include "cmExecutionStatus.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmSystemTools.h"
cmForEachFunctionBlocker::cmForEachFunctionBlocker(cmMakefile* mf)
: Makefile(mf)
, Depth(0)
{
this->Makefile->PushLoopBlock();
}
cmForEachFunctionBlocker::~cmForEachFunctionBlocker()
{
this->Makefile->PopLoopBlock();
}
bool cmForEachFunctionBlocker::IsFunctionBlocked(const cmListFileFunction& lff,
cmMakefile& mf,
cmExecutionStatus& inStatus)
{
if (lff.Name.Lower == "foreach") {
// record the number of nested foreach commands
this->Depth++;
} else if (lff.Name.Lower == "endforeach") {
// if this is the endofreach for this statement
if (!this->Depth) {
// Remove the function blocker for this scope or bail.
std::unique_ptr<cmFunctionBlocker> fb(
mf.RemoveFunctionBlocker(this, lff));
if (!fb) {
return false;
}
// at end of for each execute recorded commands
// store the old value
std::string oldDef;
if (mf.GetDefinition(this->Args[0])) {
oldDef = mf.GetDefinition(this->Args[0]);
}
for (std::string const& arg : cmMakeRange(this->Args).advance(1)) {
// set the variable to the loop value
mf.AddDefinition(this->Args[0], arg.c_str());
// Invoke all the functions that were collected in the block.
cmExecutionStatus status;
for (cmListFileFunction const& func : this->Functions) {
status.Clear();
mf.ExecuteCommand(func, status);
if (status.GetReturnInvoked()) {
inStatus.SetReturnInvoked();
// restore the variable to its prior value
mf.AddDefinition(this->Args[0], oldDef.c_str());
return true;
}
if (status.GetBreakInvoked()) {
// restore the variable to its prior value
mf.AddDefinition(this->Args[0], oldDef.c_str());
return true;
}
if (status.GetContinueInvoked()) {
break;
}
if (cmSystemTools::GetFatalErrorOccured()) {
return true;
}
}
}
// restore the variable to its prior value
mf.AddDefinition(this->Args[0], oldDef.c_str());
return true;
}
// 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 (lff.Name.Lower == "endforeach") {
std::vector<std::string> expandedArguments;
mf.ExpandArguments(lff.Arguments, expandedArguments);
// if the endforeach has arguments then make sure
// they match the begin foreach arguments
if ((expandedArguments.empty() ||
(expandedArguments[0] == this->Args[0]))) {
return true;
}
}
return false;
}
bool cmForEachCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.empty()) {
this->SetError("called with incorrect number of arguments");
return false;
}
if (args.size() > 1 && args[1] == "IN") {
return this->HandleInMode(args);
}
// create a function blocker
auto f = cm::make_unique<cmForEachFunctionBlocker>(this->Makefile);
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) {
std::ostringstream str;
str << "called with incorrect range specification: start ";
str << start << ", stop " << stop << ", step " << step;
this->SetError(str.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.emplace_back(buffer);
if (cc == stop) {
break;
}
}
f->Args = range;
} else {
f->Args = args;
}
} else {
f->Args = args;
}
this->Makefile->AddFunctionBlocker(f.release());
return true;
}
bool cmForEachCommand::HandleInMode(std::vector<std::string> const& args)
{
std::unique_ptr<cmForEachFunctionBlocker> f(
new cmForEachFunctionBlocker(this->Makefile));
f->Args.push_back(args[0]);
enum Doing
{
DoingNone,
DoingLists,
DoingItems
};
Doing doing = DoingNone;
for (unsigned int i = 2; i < args.size(); ++i) {
if (doing == DoingItems) {
f->Args.push_back(args[i]);
} else if (args[i] == "LISTS") {
doing = DoingLists;
} else if (args[i] == "ITEMS") {
doing = DoingItems;
} else if (doing == DoingLists) {
const char* value = this->Makefile->GetDefinition(args[i]);
if (value && *value) {
cmSystemTools::ExpandListArgument(value, f->Args, true);
}
} else {
std::ostringstream e;
e << "Unknown argument:\n"
<< " " << args[i] << "\n";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
return true;
}
}
this->Makefile->AddFunctionBlocker(f.release()); // TODO: pass unique_ptr
return true;
}
|
