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
|
//===--- RangeSelector.h - Source-selection library ---------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Defines a combinator library supporting the definition of _selectors_,
/// which select source ranges based on (bound) AST nodes.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLING_REFACTOR_RANGE_SELECTOR_H_
#define LLVM_CLANG_TOOLING_REFACTOR_RANGE_SELECTOR_H_
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/Support/Error.h"
#include <functional>
#include <string>
namespace clang {
namespace tooling {
using RangeSelector = std::function<Expected<CharSourceRange>(
const ast_matchers::MatchFinder::MatchResult &)>;
inline RangeSelector charRange(CharSourceRange R) {
return [R](const ast_matchers::MatchFinder::MatchResult &)
-> Expected<CharSourceRange> { return R; };
}
/// Selects from the start of \p Begin and to the end of \p End.
RangeSelector range(RangeSelector Begin, RangeSelector End);
/// Convenience version of \c range where end-points are bound nodes.
RangeSelector range(std::string BeginID, std::string EndID);
/// Selects the (empty) range [B,B) when \p Selector selects the range [B,E).
RangeSelector before(RangeSelector Selector);
/// Selects the the point immediately following \p Selector. That is, the
/// (empty) range [E,E), when \p Selector selects either
/// * the CharRange [B,E) or
/// * the TokenRange [B,E'] where the token at E' spans the range [E,E').
RangeSelector after(RangeSelector Selector);
/// Selects a node, including trailing semicolon (for non-expression
/// statements). \p ID is the node's binding in the match result.
RangeSelector node(std::string ID);
/// Selects a node, including trailing semicolon (always). Useful for selecting
/// expression statements. \p ID is the node's binding in the match result.
RangeSelector statement(std::string ID);
/// Given a \c MemberExpr, selects the member token. \p ID is the node's
/// binding in the match result.
RangeSelector member(std::string ID);
/// Given a node with a "name", (like \c NamedDecl, \c DeclRefExpr or \c
/// CxxCtorInitializer) selects the name's token. Only selects the final
/// identifier of a qualified name, but not any qualifiers or template
/// arguments. For example, for `::foo::bar::baz` and `::foo::bar::baz<int>`,
/// it selects only `baz`.
///
/// \param ID is the node's binding in the match result.
RangeSelector name(std::string ID);
// Given a \c CallExpr (bound to \p ID), selects the arguments' source text (all
// source between the call's parentheses).
RangeSelector callArgs(std::string ID);
// Given a \c CompoundStmt (bound to \p ID), selects the source of the
// statements (all source between the braces).
RangeSelector statements(std::string ID);
// Given a \c InitListExpr (bound to \p ID), selects the range of the elements
// (all source between the braces).
RangeSelector initListElements(std::string ID);
/// Selects the range from which `S` was expanded (possibly along with other
/// source), if `S` is an expansion, and `S` itself, otherwise. Corresponds to
/// `SourceManager::getExpansionRange`.
RangeSelector expansion(RangeSelector S);
} // namespace tooling
} // namespace clang
#endif // LLVM_CLANG_TOOLING_REFACTOR_RANGE_SELECTOR_H_
|
