Type information for AST printer.

libsolidity/ASTPrinter.cpp

@@ -172,6 +172,7 @@ bool ASTPrinter::visit(VariableDefinition& _node)
 bool ASTPrinter::visit(Expression& _node)
 {
 	writeLine("Expression");
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -179,6 +180,7 @@ bool ASTPrinter::visit(Expression& _node)
 bool ASTPrinter::visit(Assignment& _node)
 {
 	writeLine(std::string("Assignment using operator ") + Token::toString(_node.getAssignmentOperator()));
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -187,6 +189,7 @@ bool ASTPrinter::visit(UnaryOperation& _node)
 {
 	writeLine(std::string("UnaryOperation (") + (_node.isPrefixOperation() ? "prefix" : "postfix") +
 			  ") " + Token::toString(_node.getOperator()));
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -194,6 +197,7 @@ bool ASTPrinter::visit(UnaryOperation& _node)
 bool ASTPrinter::visit(BinaryOperation& _node)
 {
 	writeLine(std::string("BinaryOperation using operator ") + Token::toString(_node.getOperator()));
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -201,6 +205,7 @@ bool ASTPrinter::visit(BinaryOperation& _node)
 bool ASTPrinter::visit(FunctionCall& _node)
 {
 	writeLine("FunctionCall");
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -208,6 +213,7 @@ bool ASTPrinter::visit(FunctionCall& _node)
 bool ASTPrinter::visit(MemberAccess& _node)
 {
 	writeLine("MemberAccess to member " + _node.getMemberName());
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -215,6 +221,7 @@ bool ASTPrinter::visit(MemberAccess& _node)
 bool ASTPrinter::visit(IndexAccess& _node)
 {
 	writeLine("IndexAccess");
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -222,6 +229,7 @@ bool ASTPrinter::visit(IndexAccess& _node)
 bool ASTPrinter::visit(PrimaryExpression& _node)
 {
 	writeLine("PrimaryExpression");
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -229,6 +237,7 @@ bool ASTPrinter::visit(PrimaryExpression& _node)
 bool ASTPrinter::visit(Identifier& _node)
 {
 	writeLine(std::string("Identifier ") + _node.getName());
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -236,6 +245,7 @@ bool ASTPrinter::visit(Identifier& _node)
 bool ASTPrinter::visit(ElementaryTypeNameExpression& _node)
 {
 	writeLine(std::string("ElementaryTypeNameExpression ") + Token::toString(_node.getTypeToken()));
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -246,6 +256,7 @@ bool ASTPrinter::visit(Literal& _node)
 	if (tokenString == nullptr)
 		tokenString = "[no token]";
 	writeLine(std::string("Literal, token: ") + tokenString + " value: " + _node.getValue());
+	printType(_node);
 	printSourcePart(_node);
 	return goDeeper();
 }
@@ -410,6 +421,14 @@ void ASTPrinter::printSourcePart(ASTNode const& _node)
 	}
 }
 
+void ASTPrinter::printType(Expression const& _expression)
+{
+	if (_expression.getType())
+		*m_ostream << getIndentation() << "   Type: " << _expression.getType()->toString() << "\n";
+	else
+		*m_ostream << getIndentation() << "   Type unknown.\n";
+}
+
 std::string ASTPrinter::getIndentation() const
 {
 	return std::string(m_indentation * 2, ' ');

libsolidity/ASTPrinter.h

@@ -102,6 +102,7 @@ public:
 
 private:
 	void printSourcePart(ASTNode const& _node);
+	void printType(Expression const& _expression);
 	std::string getIndentation() const;
 	void writeLine(std::string const& _line);
 	bool goDeeper() { m_indentation++; return true; }

libsolidity/Types.cpp

@@ -22,6 +22,7 @@
 
 #include <libsolidity/Types.h>
 #include <libsolidity/AST.h>
+#include <libdevcore/CommonIO.h>
 
 namespace dev
 {
@@ -130,6 +131,14 @@ bool IntegerType::acceptsUnaryOperator(Token::Value _operator) const
 	return _operator == Token::DELETE || (!isAddress() && _operator == Token::BIT_NOT);
 }
 
+std::string IntegerType::toString() const
+{
+	if (isAddress())
+		return "address";
+	std::string prefix = isHash() ? "hash" : (isSigned() ? "int" : "uint");
+	return prefix + dev::toString(m_bits);
+}
+
 bool BoolType::isExplicitlyConvertibleTo(Type const& _convertTo) const
 {
 	// conversion to integer is fine, but not to address

libsolidity/Types.h

@@ -59,6 +59,8 @@ public:
 	}
 	virtual bool acceptsBinaryOperator(Token::Value) const { return false; }
 	virtual bool acceptsUnaryOperator(Token::Value) const { return false; }
+
+	virtual std::string toString() const = 0;
 };
 
 class IntegerType: public Type
@@ -68,7 +70,7 @@ public:
 	{
 		UNSIGNED, SIGNED, HASH, ADDRESS
 	};
-	virtual Category getCategory() const { return Category::INTEGER; }
+	virtual Category getCategory() const override { return Category::INTEGER; }
 
 	static std::shared_ptr<IntegerType> smallestTypeForLiteral(std::string const& _literal);
 
@@ -79,6 +81,8 @@ public:
 	virtual bool acceptsBinaryOperator(Token::Value _operator) const override;
 	virtual bool acceptsUnaryOperator(Token::Value _operator) const override;
 
+	virtual std::string toString() const override;
+
 	int getNumBits() const { return m_bits; }
 	bool isHash() const { return m_modifier == Modifier::HASH || m_modifier == Modifier::ADDRESS; }
 	bool isAddress() const { return m_modifier == Modifier::ADDRESS; }
@@ -106,15 +110,18 @@ public:
 	{
 		return _operator == Token::NOT || _operator == Token::DELETE;
 	}
+	virtual std::string toString() const override { return "bool"; }
 };
 
 class ContractType: public Type
 {
 public:
-	virtual Category getCategory() const { return Category::CONTRACT; }
+	virtual Category getCategory() const override { return Category::CONTRACT; }
 	ContractType(ContractDefinition const& _contract): m_contract(_contract) {}
 	virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const;
 
+	virtual std::string toString() const override { return "contract{...}"; }
+
 private:
 	ContractDefinition const& m_contract;
 };
@@ -122,7 +129,7 @@ private:
 class StructType: public Type
 {
 public:
-	virtual Category getCategory() const { return Category::STRUCT; }
+	virtual Category getCategory() const override { return Category::STRUCT; }
 	StructType(StructDefinition const& _struct): m_struct(_struct) {}
 	virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const;
 	virtual bool acceptsUnaryOperator(Token::Value _operator) const override
@@ -130,6 +137,9 @@ public:
 		return _operator == Token::DELETE;
 	}
 
+
+	virtual std::string toString() const override { return "struct{...}"; }
+
 private:
 	StructDefinition const& m_struct;
 };
@@ -137,11 +147,13 @@ private:
 class FunctionType: public Type
 {
 public:
-	virtual Category getCategory() const { return Category::FUNCTION; }
+	virtual Category getCategory() const override { return Category::FUNCTION; }
 	FunctionType(FunctionDefinition const& _function): m_function(_function) {}
 
 	FunctionDefinition const& getFunction() const { return m_function; }
 
+	virtual std::string toString() const override { return "function(...)returns(...)"; }
+
 private:
 	FunctionDefinition const& m_function;
 };
@@ -149,8 +161,10 @@ private:
 class MappingType: public Type
 {
 public:
-	virtual Category getCategory() const { return Category::MAPPING; }
+	virtual Category getCategory() const override { return Category::MAPPING; }
 	MappingType() {}
+	virtual std::string toString() const override { return "mapping(...=>...)"; }
+
 private:
 	//@todo
 };
@@ -159,18 +173,21 @@ private:
 class VoidType: public Type
 {
 public:
-	virtual Category getCategory() const { return Category::VOID; }
+	virtual Category getCategory() const override { return Category::VOID; }
 	VoidType() {}
+	virtual std::string toString() const override { return "void"; }
 };
 
 class TypeType: public Type
 {
 public:
-	virtual Category getCategory() const { return Category::TYPE; }
+	virtual Category getCategory() const override { return Category::TYPE; }
 	TypeType(std::shared_ptr<Type const> const& _actualType): m_actualType(_actualType) {}
 
 	std::shared_ptr<Type const> const& getActualType() const { return m_actualType; }
 
+	virtual std::string toString() const override { return "type(" + m_actualType->toString() + ")"; }
+
 private:
 	std::shared_ptr<Type const> m_actualType;
 };