solidity/libsolidity/ast/ASTUtils.h

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/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
#pragma once
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namespace solidity::frontend
{
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class ASTNode;
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class Declaration;
class Expression;
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class SourceUnit;
class VariableDeclaration;
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/// Find the topmost referenced constant variable declaration when the given variable
/// declaration value is an identifier. Works only for constant variable declarations.
/// Returns nullptr if an identifier in the chain is not referencing a constant variable declaration.
VariableDeclaration const* rootConstVariableDeclaration(VariableDeclaration const& _varDecl);
/// Returns true if the constant variable declaration is recursive.
bool isConstantVariableRecursive(VariableDeclaration const& _varDecl);
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/// Returns the innermost AST node that covers the given location or nullptr if not found.
ASTNode const* locateInnermostASTNode(int _offsetInFile, SourceUnit const& _sourceUnit);
/// @returns @a _expr itself, in case it is not a unary tuple expression. Otherwise it descends recursively
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/// into unary tuples and returns the contained expression.
Expression const* resolveOuterUnaryTuples(Expression const* _expr);
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}