Add CMakeLists.txt for libsolidity

libsolidity/Parser.h

@@ -0,0 +1,148 @@
+/*
+    This file is part of cpp-ethereum.
+
+    cpp-ethereum 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.
+
+    cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @author Christian <c@ethdev.com>
+ * @date 2014
+ * Solidity parser.
+ */
+
+#pragma once
+
+#include "libsolidity/AST.h"
+
+namespace dev
+{
+namespace solidity
+{
+
+class Scanner;
+
+class Parser
+{
+public:
+	Parser() {}
+
+	ASTPointer<SourceUnit> parse(std::shared_ptr<Scanner> const& _scanner);
+	std::shared_ptr<std::string const> const& getSourceName() const;
+
+private:
+	class ASTNodeFactory;
+
+	/// Start position of the current token
+	int getPosition() const;
+	/// End position of the current token
+	int getEndPosition() const;
+
+	struct VarDeclParserOptions
+	{
+		VarDeclParserOptions() {}
+		bool allowVar = false;
+		bool isStateVariable = false;
+		bool allowIndexed = false;
+		bool allowEmptyName = false;
+		bool allowInitialValue = false;
+		bool allowLocationSpecifier = false;
+	};
+
+	///@{
+	///@name Parsing functions for the AST nodes
+	ASTPointer<ImportDirective> parseImportDirective();
+	ASTPointer<ContractDefinition> parseContractDefinition();
+	ASTPointer<InheritanceSpecifier> parseInheritanceSpecifier();
+	Declaration::Visibility parseVisibilitySpecifier(Token::Value _token);
+	ASTPointer<FunctionDefinition> parseFunctionDefinition(ASTString const* _contractName);
+	ASTPointer<StructDefinition> parseStructDefinition();
+	ASTPointer<EnumDefinition> parseEnumDefinition();
+	ASTPointer<EnumValue> parseEnumValue();
+	ASTPointer<VariableDeclaration> parseVariableDeclaration(VarDeclParserOptions const& _options = VarDeclParserOptions(),
+		ASTPointer<TypeName> const& _lookAheadArrayType = ASTPointer<TypeName>());
+	ASTPointer<ModifierDefinition> parseModifierDefinition();
+	ASTPointer<EventDefinition> parseEventDefinition();
+	ASTPointer<ModifierInvocation> parseModifierInvocation();
+	ASTPointer<Identifier> parseIdentifier();
+	ASTPointer<TypeName> parseTypeName(bool _allowVar);
+	ASTPointer<Mapping> parseMapping();
+	ASTPointer<ParameterList> parseParameterList(
+		VarDeclParserOptions const& _options,
+		bool _allowEmpty = true
+	);
+	ASTPointer<Block> parseBlock();
+	ASTPointer<Statement> parseStatement();
+	ASTPointer<IfStatement> parseIfStatement();
+	ASTPointer<WhileStatement> parseWhileStatement();
+	ASTPointer<ForStatement> parseForStatement();
+	/// A "simple statement" can be a variable declaration statement or an expression statement.
+	ASTPointer<Statement> parseSimpleStatement();
+	ASTPointer<VariableDeclarationStatement> parseVariableDeclarationStatement(
+		ASTPointer<TypeName> const& _lookAheadArrayType = ASTPointer<TypeName>());
+	ASTPointer<ExpressionStatement> parseExpressionStatement(
+		ASTPointer<Expression> const& _lookAheadIndexAccessStructure = ASTPointer<Expression>());
+	ASTPointer<Expression> parseExpression(
+		ASTPointer<Expression> const& _lookAheadIndexAccessStructure = ASTPointer<Expression>());
+	ASTPointer<Expression> parseBinaryExpression(int _minPrecedence = 4,
+		ASTPointer<Expression> const& _lookAheadIndexAccessStructure = ASTPointer<Expression>());
+	ASTPointer<Expression> parseUnaryExpression(
+		ASTPointer<Expression> const& _lookAheadIndexAccessStructure = ASTPointer<Expression>());
+	ASTPointer<Expression> parseLeftHandSideExpression(
+		ASTPointer<Expression> const& _lookAheadIndexAccessStructure = ASTPointer<Expression>());
+	ASTPointer<Expression> parsePrimaryExpression();
+	std::vector<ASTPointer<Expression>> parseFunctionCallListArguments();
+	std::pair<std::vector<ASTPointer<Expression>>, std::vector<ASTPointer<ASTString>>> parseFunctionCallArguments();
+	///@}
+
+	///@{
+	///@name Helper functions
+
+	/// Used as return value of @see peekStatementType.
+	enum class LookAheadInfo
+	{
+		IndexAccessStructure, VariableDeclarationStatement, ExpressionStatement
+	};
+
+	/// Performs limited look-ahead to distinguish between variable declaration and expression statement.
+	/// For source code of the form "a[][8]" ("IndexAccessStructure"), this is not possible to
+	/// decide with constant look-ahead.
+	LookAheadInfo peekStatementType() const;
+	/// Returns a typename parsed in look-ahead fashion from something like "a[8][2**70]".
+	ASTPointer<TypeName> typeNameIndexAccessStructure(
+		ASTPointer<PrimaryExpression> const& _primary,
+		std::vector<std::pair<ASTPointer<Expression>, SourceLocation>> const& _indices);
+	/// Returns an expression parsed in look-ahead fashion from something like "a[8][2**70]".
+	ASTPointer<Expression> expressionFromIndexAccessStructure(
+		ASTPointer<PrimaryExpression> const& _primary,
+		std::vector<std::pair<ASTPointer<Expression>, SourceLocation>> const& _indices);
+	/// If current token value is not _value, throw exception otherwise advance token.
+	void expectToken(Token::Value _value);
+	Token::Value expectAssignmentOperator();
+	ASTPointer<ASTString> expectIdentifierToken();
+	ASTPointer<ASTString> getLiteralAndAdvance();
+	///@}
+
+	/// Creates an empty ParameterList at the current location (used if parameters can be omitted).
+	ASTPointer<ParameterList> createEmptyParameterList();
+
+	/// Creates a @ref ParserError exception and annotates it with the current position and the
+	/// given @a _description.
+	ParserError createParserError(std::string const& _description) const;
+
+	std::shared_ptr<Scanner> m_scanner;
+	/// Flag that signifies whether '_' is parsed as a PlaceholderStatement or a regular identifier.
+	bool m_insideModifier = false;
+};
+
+}
+}