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
|
//===-- SimplifyBooleanExprMatchers.h - clang-tidy ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "clang/ASTMatchers/ASTMatchersInternal.h"
#include "clang/ASTMatchers/ASTMatchersMacros.h"
namespace clang {
namespace ast_matchers {
/// Matches the substatement associated with a case, default or label statement.
///
/// Given
/// \code
/// switch (1) { case 1: break; case 2: return; break; default: return; break;
/// }
/// foo: return;
/// bar: break;
/// \endcode
///
/// caseStmt(hasSubstatement(returnStmt()))
/// matches "case 2: return;"
/// defaultStmt(hasSubstatement(returnStmt()))
/// matches "default: return;"
/// labelStmt(hasSubstatement(breakStmt()))
/// matches "bar: break;"
AST_POLYMORPHIC_MATCHER_P(hasSubstatement,
AST_POLYMORPHIC_SUPPORTED_TYPES(CaseStmt, DefaultStmt,
LabelStmt),
internal::Matcher<Stmt>, InnerMatcher) {
return InnerMatcher.matches(*Node.getSubStmt(), Finder, Builder);
}
/// Matches two consecutive statements within a compound statement.
///
/// Given
/// \code
/// { if (x > 0) return true; return false; }
/// \endcode
/// compoundStmt(hasSubstatementSequence(ifStmt(), returnStmt()))
/// matches '{ if (x > 0) return true; return false; }'
AST_POLYMORPHIC_MATCHER_P2(hasSubstatementSequence,
AST_POLYMORPHIC_SUPPORTED_TYPES(CompoundStmt,
StmtExpr),
internal::Matcher<Stmt>, InnerMatcher1,
internal::Matcher<Stmt>, InnerMatcher2) {
if (const CompoundStmt *CS = CompoundStmtMatcher<NodeType>::get(Node)) {
auto It = matchesFirstInPointerRange(InnerMatcher1, CS->body_begin(),
CS->body_end(), Finder, Builder);
while (It != CS->body_end()) {
++It;
if (It == CS->body_end())
return false;
if (InnerMatcher2.matches(**It, Finder, Builder))
return true;
It = matchesFirstInPointerRange(InnerMatcher1, It, CS->body_end(), Finder,
Builder);
}
}
return false;
}
} // namespace ast_matchers
} // namespace clang
|
