forked from OSchip/llvm-project
54 lines
2.4 KiB
C
54 lines
2.4 KiB
C
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//===--- InsertionPoint.h - Where should we add new code? --------*- C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/DeclCXX.h"
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#include "clang/Basic/Specifiers.h"
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#include "clang/Tooling/Core/Replacement.h"
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namespace clang {
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namespace clangd {
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// An anchor describes where to insert code into a decl sequence.
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//
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// It allows inserting above or below a block of decls matching some criterion.
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// For example, "insert after existing constructors".
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struct Anchor {
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// A predicate describing which decls are considered part of a block.
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// Match need not handle TemplateDecls, which are unwrapped before matching.
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std::function<bool(const Decl *)> Match;
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// Whether the insertion point should be before or after the matching block.
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enum Dir { Above, Below } Direction = Below;
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};
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// Returns the point to insert a declaration according to Anchors.
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// Anchors are tried in order. For each, the first matching location is chosen.
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SourceLocation insertionPoint(const DeclContext &Ctx,
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llvm::ArrayRef<Anchor> Anchors);
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// Returns an edit inserting Code inside Ctx.
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// Location is chosen according to Anchors, falling back to the end of Ctx.
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// Fails if the chosen insertion point is in a different file than Ctx itself.
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llvm::Expected<tooling::Replacement> insertDecl(llvm::StringRef Code,
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const DeclContext &Ctx,
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llvm::ArrayRef<Anchor> Anchors);
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// Variant for C++ classes that ensures the right access control.
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SourceLocation insertionPoint(const CXXRecordDecl &InClass,
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std::vector<Anchor> Anchors,
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AccessSpecifier Protection);
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// Variant for C++ classes that ensures the right access control.
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// May insert a new access specifier if needed.
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llvm::Expected<tooling::Replacement> insertDecl(llvm::StringRef Code,
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const CXXRecordDecl &InClass,
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std::vector<Anchor> Anchors,
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AccessSpecifier Protection);
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} // namespace clangd
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} // namespace clang
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