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Make code examples conform to style guide

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Chris Ward 2019-05-27 16:59:54 +02:00
parent dee023bda6
commit e81e71e879
1 changed files with 36 additions and 34 deletions
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70
docs/contracts/libraries.rst
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@ -49,46 +49,48 @@ more advanced example to implement a set).
pragma solidity >=0.4.22 <0.7.0;
library Set {
// We define a new struct datatype that will be used to
// hold its data in the calling contract.
struct Data { mapping(uint => bool) flags; }
// We define a new struct datatype that will be used to
// hold its data in the calling contract.
struct Data { mapping(uint => bool) flags; }
// Note that the first parameter is of type "storage
// reference" and thus only its storage address and not
// its contents is passed as part of the call. This is a
// special feature of library functions. It is idiomatic
// to call the first parameter `self`, if the function can
// be seen as a method of that object.
function insert(Data storage self, uint value)
public
returns (bool)
{
if (self.flags[value])
return false; // already there
self.flags[value] = true;
return true;
}
// Note that the first parameter is of type "storage
// reference" and thus only its storage address and not
// its contents is passed as part of the call. This is a
// special feature of library functions. It is idiomatic
// to call the first parameter `self`, if the function can
// be seen as a method of that object.
function insert(Data storage self, uint value)
public
returns (bool)
{
if (self.flags[value])
return false; // already there
self.flags[value] = true;
return true;
}
function remove(Data storage self, uint value)
public
returns (bool)
{
if (!self.flags[value])
return false; // not there
self.flags[value] = false;
return true;
}
function remove(Data storage self, uint value)
public
returns (bool)
{
if (!self.flags[value])
return false; // not there
self.flags[value] = false;
return true;
}
function contains(Data storage self, uint value)
public
view
returns (bool)
{
return self.flags[value];
}
function contains(Data storage self, uint value)
public
view
returns (bool)
{
return self.flags[value];
}
}
contract C {
Set.Data knownValues;