注解
This documentation is under construction and the chain3.js 1.0 stable version isn’t released. If you’re using a version v0.1.x of chain3.js then please check chain3js 0.1.x or https://github.com/MOACChain/moac-core/wiki/Chain3.
名词解释¶
Specification¶
函数(Functions):
type
:"function"
,"constructor"
(can be omitted, defaulting to"function"
;"fallback"
also possible but not relevant in web3.js);name
: the name of the function (only present for function types);constant
:true
if function is specified to not modify the blockchain state;payable
:true
if function accepts ether, defaults tofalse
;stateMutability
: a string with one of the following values:pure
(specified to not read blockchain state),view
(same asconstant
above),nonpayable
andpayable
(same aspayable
above);inputs
: an array of objects, each of which contains:name
: the name of the parameter;type
: the canonical type of the parameter.
outputs
: an array of objects same asinputs
, can be omitted if no outputs exist.
事件(Events):
type
: always"event"
name
: the name of the event;inputs
: an array of objects, each of which contains:name
: the name of the parameter;type
: the canonical type of the parameter.indexed
:true
if the field is part of the log’s topics,false
if it one of the log’s data segment.
anonymous
:true
if the event was declared asanonymous
.
Example¶
contract Test {
uint a;
address d = 0x12345678901234567890123456789012;
function Test(uint testInt) { a = testInt;}
event Event(uint indexed b, bytes32 c);
event Event2(uint indexed b, bytes32 c);
function foo(uint b, bytes32 c) returns(address) {
Event(b, c);
return d;
}
}
// would result in the JSON:
[{
"type":"constructor",
"payable":false,
"stateMutability":"nonpayable"
"inputs":[{"name":"testInt","type":"uint256"}],
},{
"type":"function",
"name":"foo",
"constant":false,
"payable":false,
"stateMutability":"nonpayable",
"inputs":[{"name":"b","type":"uint256"}, {"name":"c","type":"bytes32"}],
"outputs":[{"name":"","type":"address"}]
},{
"type":"event",
"name":"Event",
"inputs":[{"indexed":true,"name":"b","type":"uint256"}, {"indexed":false,"name":"c","type":"bytes32"}],
"anonymous":false
},{
"type":"event",
"name":"Event2",
"inputs":[{"indexed":true,"name":"b","type":"uint256"},{"indexed":false,"name":"c","type":"bytes32"}],
"anonymous":false
}]