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
|
//=- ClangDiagnosticsEmitter.cpp - Generate Clang diagnostics tables -*- C++ -*-
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These tablegen backends emit Clang diagnostics tables.
//
//===----------------------------------------------------------------------===//
#include "ClangDiagnosticsEmitter.h"
#include "Record.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Streams.h"
#include "llvm/ADT/VectorExtras.h"
#include "llvm/ADT/DenseSet.h"
#include <set>
#include <map>
using namespace llvm;
//===----------------------------------------------------------------------===//
// Generic routines for all Clang TableGen backends.
//===----------------------------------------------------------------------===//
typedef std::vector<Record*> RecordVector;
typedef std::vector<Record*> SuperClassVector;
typedef std::vector<RecordVal> RecordValVector;
static const RecordVal* findRecordVal(const Record& R, const std::string &key) {
const RecordValVector &Vals = R.getValues();
for (RecordValVector::const_iterator I=Vals.begin(), E=Vals.end(); I!=E; ++I)
if ((*I).getName() == key)
return &*I;
return 0;
}
static const Record* getDiagKind(const Record* DiagClass, const Record &R) {
const SuperClassVector &SC = R.getSuperClasses();
for (SuperClassVector::const_iterator I=SC.begin(), E=SC.end(); I!=E; ++I)
if ((*I)->isSubClassOf(DiagClass) &&
(*I)->getName() != "DiagnosticControlled")
return *I;
return 0;
}
static void EmitEscaped(std::ostream& OS, const std::string &s) {
for (std::string::const_iterator I=s.begin(), E=s.end(); I!=E; ++I)
switch (*I) {
default: OS << *I; break;
case '\"': OS << "\\" << *I; break;
case '\\': OS << "\\\\"; break;
}
}
static void EmitAllCaps(std::ostream& OS, const std::string &s) {
for (std::string::const_iterator I=s.begin(), E=s.end(); I!=E; ++I)
OS << char(toupper(*I));
}
//===----------------------------------------------------------------------===//
// Warning Tables (.inc file) generation.
//===----------------------------------------------------------------------===//
static void ProcessDiag(std::ostream& OS, const Record* DiagClass,
const Record& R) {
const Record* DiagKind = getDiagKind(DiagClass, R);
if (!DiagKind)
return;
OS << "DIAG(" << R.getName() << ", ";
EmitAllCaps(OS, DiagKind->getName());
const RecordVal* Text = findRecordVal(R, "Text");
assert(Text && "No 'Text' entry in Diagnostic.");
const StringInit* TextVal = dynamic_cast<const StringInit*>(Text->getValue());
assert(TextVal && "Value 'Text' must be a string.");
OS << ", \"";
EmitEscaped(OS, TextVal->getValue());
OS << "\")\n";
}
void ClangDiagsDefsEmitter::run(std::ostream &OS) {
const RecordVector &Diags = Records.getAllDerivedDefinitions("Diagnostic");
const Record* DiagClass = Records.getClass("Diagnostic");
assert(DiagClass && "No Diagnostic class defined.");
// Write the #if guard
if (!Component.empty()) {
OS << "#ifdef ";
EmitAllCaps(OS, Component);
OS << "START\n__";
EmitAllCaps(OS, Component);
OS << "START = DIAG_START_";
EmitAllCaps(OS, Component);
OS << ",\n#undef ";
EmitAllCaps(OS, Component);
OS << "START\n#endif\n";
}
for (RecordVector::const_iterator I=Diags.begin(), E=Diags.end(); I!=E; ++I) {
if (!Component.empty()) {
const RecordVal* V = findRecordVal(**I, "Component");
if (!V)
continue;
const StringInit* SV = dynamic_cast<const StringInit*>(V->getValue());
if (!SV || SV->getValue() != Component)
continue;
}
ProcessDiag(OS, DiagClass, **I);
}
}
//===----------------------------------------------------------------------===//
// Warning Group Tables generation.
//===----------------------------------------------------------------------===//
static const std::string &getOptName(const Record *R) {
const RecordVal *V = findRecordVal(*R, "Name");
assert(V && "Options must have a 'Name' value.");
const StringInit* SV = dynamic_cast<const StringInit*>(V->getValue());
assert(SV && "'Name' entry must be a string.");
return SV->getValue();
}
namespace {
struct VISIBILITY_HIDDEN CompareOptName {
bool operator()(const Record* A, const Record* B) const {
return getOptName(A) < getOptName(B);
}
};
}
typedef std::set<const Record*> DiagnosticSet;
typedef std::map<const Record*, DiagnosticSet, CompareOptName> OptionMap;
typedef llvm::DenseSet<const ListInit*> VisitedLists;
static void BuildGroup(DiagnosticSet& DS, VisitedLists &Visited, const Init* X);
static void BuildGroup(DiagnosticSet &DS, VisitedLists &Visited,
const ListInit* LV) {
// Simple hack to prevent including a list multiple times. This may be useful
// if one declares an Option by including a bunch of other Options that
// include other Options, etc.
if (Visited.count(LV))
return;
Visited.insert(LV);
// Iterate through the list and grab all DiagnosticControlled.
for (ListInit::const_iterator I = LV->begin(), E = LV->end(); I!=E; ++I)
BuildGroup(DS, Visited, *I);
}
static void BuildGroup(DiagnosticSet& DS, VisitedLists &Visited,
const Record *Def) {
// If an Option includes another Option, inline the Diagnostics of the
// included Option.
if (Def->isSubClassOf("Option")) {
if (const RecordVal* V = findRecordVal(*Def, "Members"))
if (const ListInit* LV = dynamic_cast<const ListInit*>(V->getValue()))
BuildGroup(DS, Visited, LV);
return;
}
if (Def->isSubClassOf("DiagnosticControlled"))
DS.insert(Def);
}
static void BuildGroup(DiagnosticSet& DS, VisitedLists &Visited,
const Init* X) {
if (const DefInit *D = dynamic_cast<const DefInit*>(X))
BuildGroup(DS, Visited, D->getDef());
// We may have some other cases here in the future.
}
void ClangOptionsEmitter::run(std::ostream &OS) {
// Build up a map from options to controlled diagnostics.
OptionMap OM;
const RecordVector &Opts = Records.getAllDerivedDefinitions("Option");
for (RecordVector::const_iterator I=Opts.begin(), E=Opts.end(); I!=E; ++I)
if (const RecordVal* V = findRecordVal(**I, "Members"))
if (const ListInit* LV = dynamic_cast<const ListInit*>(V->getValue())) {
VisitedLists Visited;
BuildGroup(OM[*I], Visited, LV);
}
// Iterate through the OptionMap and emit the declarations.
for (OptionMap::iterator I = OM.begin(), E = OM.end(); I!=E; ++I) {
// Output the option.
OS << "static const diag::kind " << I->first->getName() << "[] = { ";
DiagnosticSet &DS = I->second;
bool first = true;
for (DiagnosticSet::iterator I2 = DS.begin(), E2 = DS.end(); I2!=E2; ++I2) {
if (first)
first = false;
else
OS << ", ";
OS << "diag::" << (*I2)->getName();
}
OS << " };\n";
}
// Now emit the OptionTable table.
OS << "\nstatic const WarningOption OptionTable[] = {";
bool first = true;
for (OptionMap::iterator I = OM.begin(), E = OM.end(); I!=E; ++I) {
if (first)
first = false;
else
OS << ',';
OS << "\n {\"" << getOptName(I->first)
<< "\", DIAGS(" << I->first->getName() << ")}";
}
OS << "\n};\n";
}
|
