Inline array declarations complete

3 files changed, 52 insertions, 2 deletions

diff --git a/libsolidity/ast/AST.h b/libsolidity/ast/AST.h
index 1217d945..0c37dad3 100644
--- a/libsolidity/ast/AST.h
+++ b/libsolidity/ast/AST.h
@@ -1126,9 +1126,10 @@ private:
 	ASTPointer<Expression> m_rightHandSide;
 };
 
+
 /**
- * Tuple or just parenthesized expression.
- * Examples: (1, 2), (x,), (x), ()
+ * Tuple, parenthesized expression, or bracketed expression.
+ * Examples: (1, 2), (x,), (x), (), [1, 2], 
  * Individual components might be empty shared pointers (as in the second example).
  * The respective types in lvalue context are: 2-tuple, 2-tuple (with wildcard), type of x, 0-tuple
  * Not in lvalue context: 2-tuple, _1_-tuple, type of x, 0-tuple.
@@ -1150,6 +1151,23 @@ private:
 	std::vector<ASTPointer<Expression>> m_components;
 };
 
+class InlineArrayExpression: public Expression
+{
+public:
+	InlineArrayExpression(
+		SourceLocation const& _location,
+		std::vector<ASTPointer<Expression>> const& _components
+	):
+		Expression(_location), m_components(_components) {}
+	virtual void accept(ASTVisitor& _visitor) override;
+	virtual void accept(ASTConstVisitor& _visitor) const override;
+
+	std::vector<ASTPointer<Expression>> const& components() const { return m_components; }
+
+private:
+	std::vector<ASTPointer<Expression>> m_components;
+};
+
 /**
  * Operation involving a unary operator, pre- or postfix.
  * Examples: ++i, delete x or !true
diff --git a/libsolidity/parsing/Parser.cpp b/libsolidity/parsing/Parser.cpp
index 2b886121..50e4d29d 100644
--- a/libsolidity/parsing/Parser.cpp
+++ b/libsolidity/parsing/Parser.cpp
@@ -1056,6 +1056,28 @@ ASTPointer<Expression> Parser::parsePrimaryExpression()
 		expectToken(Token::RParen);
 		return nodeFactory.createNode<TupleExpression>(components);
 	}
+	case Token::LBrack:
+	{
+		// Inline array expression
+		// Special cases: [] is empty tuple type, (x) is not a real tuple, (x,) is one-dimensional tuple
+		m_scanner->next();
+		vector<ASTPointer<Expression>> components;
+		if (m_scanner->currentToken() != Token::RBrack)
+			while (true)
+			{
+				if (m_scanner->currentToken() != Token::Comma && m_scanner->currentToken() != Token::RBrack)
+					components.push_back(parseExpression());
+				else
+					components.push_back(ASTPointer<Expression>());
+				if (m_scanner->currentToken() == Token::RBrack)
+					break;
+				else if (m_scanner->currentToken() == Token::Comma)
+					m_scanner->next();
+			}
+		nodeFactory.markEndPosition();
+		expectToken(Token::RBrack);
+		return nodeFactory.createNode<TupleExpression>(components);		
+	}
 	default:
 		if (Token::isElementaryTypeName(token))
 		{
diff --git a/test/libsolidity/SolidityParser.cpp b/test/libsolidity/SolidityParser.cpp
index fd9076c3..53ffb618 100644
--- a/test/libsolidity/SolidityParser.cpp
+++ b/test/libsolidity/SolidityParser.cpp
@@ -1047,6 +1047,16 @@ BOOST_AUTO_TEST_CASE(using_for)
 	BOOST_CHECK(successParse(text));
 }
 
+BOOST_AUTO_TEST_CASE(inline_array_declaration)
+{
+	char const* text = R"(
+		contract C {
+			uint[] x = [0, 1, 2, 3];
+		}
+	)";
+	BOOST_CHECK(successParse(text));
+}
+
 BOOST_AUTO_TEST_SUITE_END()
 
 }