Statements

The sections below include the coding conventions with respect to statements.

If Statement

  • Always enclose the condition with parentheses in the If statement.

Do’s

if (true) {
    ...
} else if (false) {
    ...
}

Don’ts

if true {
    ...
} else if false {
    ...
}
  • Keep the else and else if keywords in the same line with the matching if or else if block’s closing brace separated only by a single space.

Empty Block

  • Do not have any empty if, else if, or else blocks.
  • If empty, add an empty line between the opening and closing braces.

Example,

if (inProperSallaryRange) {
      
} else if (inSallaryRange) {
      
} else {
      
}

Match Statement

Match Patterns Clause

  • Block indent each pattern clause in its own line.
  • Keep a single space before and after the => sign.
  • If a pattern clause contains only one statement, place it in the same line as the pattern clause enclosing it with curly braces.

Example,

function foo(string|int|boolean a) returns string {
    match a {
        12 => {
            return "Value is '12'";
        }
    }
  
    return "Value is 'Default'";
}
  • If a pattern clause has more than one statement, block indent each statement in its own line.

Example,

match x {
    var (s, i) if s is string => {
        io:println("string");
    }
    var (s, i) if s is int => {
        io:println("int");
    }
}

  • If the pattern body is empty, then keep it as an empty block.

    Example,

match x {
    var (s, i) if s is string => {}
    var (s, i) if s is int => {}
}

Transaction Statement

  • Start each optional clause (onretry, committed, and aborted) in the same line as the closing brace of the matching clause.
  • If transaction, onretry, committed, and aborted blocks are empty, add an empty line between the braces.

Example,

function func1() {
    transaction with retries = 2 {
          
    } onretry {
          
    } aborted {
          
    } committed {
          
    }
}