public Node AssignmentStatement(Token identifier) { var identifierNode = new Identifier() { AnchorToken = identifier }; if (CurrentToken == TokenCategory.BRACKETS_OPEN) { Expect(TokenCategory.BRACKETS_OPEN); identifierNode.Add(Expression()); Expect(TokenCategory.BRACKETS_CLOSE); } var assignmentNode = new Assignment_Statement() { AnchorToken = Expect(TokenCategory.ASSIGN) }; assignmentNode.Add(identifierNode); assignmentNode.Add(Expression()); Expect(TokenCategory.EOL); return(assignmentNode); }
public Node AssignmentOrCallStatement() { var id_node = Node.fromToken(Expect(TokenCategory.IDENTIFIER)); Node node = null; if (Has(TokenCategory.PARENTHESIS_OPEN)) { node = new Call_Statement() { AnchorToken = id_node.AnchorToken }; Expect(TokenCategory.PARENTHESIS_OPEN); node.Add(Optional(firstOfExpression, () => { var list = new List<Node>() { Expression() }; list.AddRange(ZeroOrMore(TokenCategory.COMMA, Expression, true)); return list; })); Expect(TokenCategory.PARENTHESIS_CLOSE); } else if (Has(TokenCategory.BRACKET_OPEN) || Has(TokenCategory.COLON_EQUAL)) { node = new Assignment_Statement(); if (Has(TokenCategory.BRACKET_OPEN)) { Expect(TokenCategory.BRACKET_OPEN); var expression_node = Expression(); Expect(TokenCategory.BRACKET_CLOSE); node.Add(new ListIndexNode() { id_node, expression_node }); } else { node.Add(id_node); } node.AnchorToken = Expect(TokenCategory.COLON_EQUAL); node.Add(Expression()); } else { throw new SyntaxError(firstOfAssignmentOrCallStatement, tokenStream.Current); } Expect(TokenCategory.SEMICOLON); return node; }