mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
115 lines
4.0 KiB
C++
115 lines
4.0 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Solidity parser.
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*/
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#pragma once
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#include "libsolidity/AST.h"
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namespace dev
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{
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namespace solidity
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{
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class Scanner;
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class Parser
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{
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public:
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ASTPointer<SourceUnit> parse(std::shared_ptr<Scanner> const& _scanner);
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std::shared_ptr<std::string const> const& getSourceName() const;
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private:
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class ASTNodeFactory;
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/// Start position of the current token
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int getPosition() const;
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/// End position of the current token
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int getEndPosition() const;
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struct VarDeclParserOptions {
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VarDeclParserOptions() {}
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bool allowVar = false;
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bool isStateVariable = false;
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bool allowIndexed = false;
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};
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///@{
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///@name Parsing functions for the AST nodes
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ASTPointer<ImportDirective> parseImportDirective();
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ASTPointer<ContractDefinition> parseContractDefinition();
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ASTPointer<InheritanceSpecifier> parseInheritanceSpecifier();
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Declaration::Visibility parseVisibilitySpecifier(Token::Value _token);
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ASTPointer<FunctionDefinition> parseFunctionDefinition(ASTString const* _contractName);
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ASTPointer<StructDefinition> parseStructDefinition();
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ASTPointer<VariableDeclaration> parseVariableDeclaration(VarDeclParserOptions const& _options = VarDeclParserOptions());
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ASTPointer<ModifierDefinition> parseModifierDefinition();
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ASTPointer<EventDefinition> parseEventDefinition();
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ASTPointer<ModifierInvocation> parseModifierInvocation();
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ASTPointer<Identifier> parseIdentifier();
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ASTPointer<TypeName> parseTypeName(bool _allowVar);
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ASTPointer<Mapping> parseMapping();
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ASTPointer<ParameterList> parseParameterList(bool _allowEmpty = true, bool _allowIndexed = false);
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ASTPointer<Block> parseBlock();
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ASTPointer<Statement> parseStatement();
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ASTPointer<IfStatement> parseIfStatement();
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ASTPointer<WhileStatement> parseWhileStatement();
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ASTPointer<ForStatement> parseForStatement();
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ASTPointer<Statement> parseVarDefOrExprStmt();
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ASTPointer<VariableDefinition> parseVariableDefinition();
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ASTPointer<ExpressionStatement> parseExpressionStatement();
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ASTPointer<Expression> parseExpression();
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ASTPointer<Expression> parseBinaryExpression(int _minPrecedence = 4);
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ASTPointer<Expression> parseUnaryExpression();
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ASTPointer<Expression> parseLeftHandSideExpression();
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ASTPointer<Expression> parsePrimaryExpression();
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std::vector<ASTPointer<Expression>> parseFunctionCallListArguments();
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void parseFunctionCallArguments(std::vector<ASTPointer<Expression>> & _arguments, std::vector<std::string> & _names);
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///@}
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///@{
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///@name Helper functions
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/// Peeks ahead in the scanner to determine if a variable definition is going to follow
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bool peekVariableDefinition();
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/// If current token value is not _value, throw exception otherwise advance token.
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void expectToken(Token::Value _value);
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Token::Value expectAssignmentOperator();
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ASTPointer<ASTString> expectIdentifierToken();
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ASTPointer<ASTString> getLiteralAndAdvance();
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///@}
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/// Creates an empty ParameterList at the current location (used if parameters can be omitted).
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ASTPointer<ParameterList> createEmptyParameterList();
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/// Creates a @ref ParserError exception and annotates it with the current position and the
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/// given @a _description.
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ParserError createParserError(std::string const& _description) const;
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std::shared_ptr<Scanner> m_scanner;
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/// Flag that signifies whether '_' is parsed as a PlaceholderStatement or a regular identifier.
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bool m_insideModifier = false;
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};
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}
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}
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