mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
Include abi specs in index and fix styling.
This commit is contained in:
parent
3170fd9a93
commit
ca70d82b96
@ -111,10 +111,14 @@ on the type of `X` being
|
||||
|
||||
where `X(i)` is the `ith` component of the value, and
|
||||
`head` and `tail` are defined for `Ti` being a static type as
|
||||
|
||||
`head(X(i)) = enc(X(i))` and `tail(X(i)) = ""` (the empty string)
|
||||
|
||||
and as
|
||||
|
||||
`head(X(i)) = enc(len(head(X(0)) ... head(X(k-1)) tail(X(0)) ... tail(X(i-1))))`
|
||||
`tail(X(i)) = enc(X(i))`
|
||||
|
||||
otherwise, i.e. if `Ti` is a dynamic type.
|
||||
|
||||
Note that in the dynamic case, `head(X(i))` is well-defined since the lengths of
|
||||
@ -175,13 +179,14 @@ Examples
|
||||
|
||||
Given the contract:
|
||||
|
||||
```js
|
||||
::
|
||||
|
||||
contract Foo {
|
||||
function bar(bytes3[2] xy) {}
|
||||
function baz(uint32 x, bool y) returns (bool r) { r = x > 32 || y; }
|
||||
function sam(bytes name, bool z, uint[] data) {}
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
Thus for our `Foo` example if we wanted to call `baz` with the parameters `69` and `true`, we would pass 68 bytes total, which can be broken down into:
|
||||
|
||||
@ -189,10 +194,10 @@ Thus for our `Foo` example if we wanted to call `baz` with the parameters `69` a
|
||||
- `0x0000000000000000000000000000000000000000000000000000000000000045`: the first parameter, a uint32 value `69` padded to 32 bytes
|
||||
- `0x0000000000000000000000000000000000000000000000000000000000000001`: the second parameter - boolean `true`, padded to 32 bytes
|
||||
|
||||
In total:
|
||||
```
|
||||
In total::
|
||||
|
||||
0xcdcd77c000000000000000000000000000000000000000000000000000000000000000450000000000000000000000000000000000000000000000000000000000000001
|
||||
```
|
||||
|
||||
It returns a single `bool`. If, for example, it were to return `false`, its output would be the single byte array `0x0000000000000000000000000000000000000000000000000000000000000000`, a single bool.
|
||||
|
||||
If we wanted to call `bar` with the argument `["abc", "def"]`, we would pass 68 bytes total, broken down into:
|
||||
@ -201,10 +206,9 @@ If we wanted to call `bar` with the argument `["abc", "def"]`, we would pass 68
|
||||
- `0x6162630000000000000000000000000000000000000000000000000000000000`: the first part of the first parameter, a `bytes3` value `"abc"` (left-aligned).
|
||||
- `0x6465660000000000000000000000000000000000000000000000000000000000`: the second part of the first parameter, a `bytes3` value `"def"` (left-aligned).
|
||||
|
||||
In total:
|
||||
```
|
||||
In total::
|
||||
|
||||
0xfce353f661626300000000000000000000000000000000000000000000000000000000006465660000000000000000000000000000000000000000000000000000000000
|
||||
```
|
||||
|
||||
If we wanted to call `sam` with the arguments `"dave"`, `true` and `[1,2,3]`, we would pass 292 bytes total, broken down into:
|
||||
- `0xa5643bf2`: the Method ID. This is derived from the signature `sam(bytes,bool,uint256[])`. Note that `uint` is replaced with its canonical representation `uint256`.
|
||||
@ -218,10 +222,9 @@ If we wanted to call `sam` with the arguments `"dave"`, `true` and `[1,2,3]`, we
|
||||
- `0x0000000000000000000000000000000000000000000000000000000000000002`: the second entry of the third parameter.
|
||||
- `0x0000000000000000000000000000000000000000000000000000000000000003`: the third entry of the third parameter.
|
||||
|
||||
In total:
|
||||
```
|
||||
In total::
|
||||
|
||||
0xa5643bf20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000464617665000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003
|
||||
```
|
||||
|
||||
Use of Dynamic Types
|
||||
====================
|
||||
@ -249,7 +252,8 @@ Finally, we encode the data part of the second dynamic argument, `"Hello, world!
|
||||
|
||||
All together, the encoding is (newline after function selector and each 32-bytes for clarity):
|
||||
|
||||
```
|
||||
::
|
||||
|
||||
0x8be65246
|
||||
0000000000000000000000000000000000000000000000000000000000000123
|
||||
0000000000000000000000000000000000000000000000000000000000000080
|
||||
@ -260,8 +264,6 @@ All together, the encoding is (newline after function selector and each 32-bytes
|
||||
0000000000000000000000000000000000000000000000000000000000000789
|
||||
000000000000000000000000000000000000000000000000000000000000000d
|
||||
48656c6c6f2c20776f726c642100000000000000000000000000000000000000
|
||||
```
|
||||
|
||||
|
||||
Events
|
||||
======
|
||||
@ -309,7 +311,8 @@ An event description is a JSON object with fairly similar fields:
|
||||
|
||||
For example,
|
||||
|
||||
```js
|
||||
::
|
||||
|
||||
contract Test {
|
||||
function Test(){ b = 0x12345678901234567890123456789012; }
|
||||
event Event(uint indexed a, bytes32 b)
|
||||
@ -317,11 +320,11 @@ event Event2(uint indexed a, bytes32 b)
|
||||
function foo(uint a) { Event(a, b); }
|
||||
bytes32 b;
|
||||
}
|
||||
```
|
||||
|
||||
would result in the JSON:
|
||||
|
||||
```js
|
||||
.. code:: JSON
|
||||
|
||||
[{
|
||||
"type":"event",
|
||||
"inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"bytes32","indexed":false}],
|
||||
@ -340,4 +343,3 @@ would result in the JSON:
|
||||
"name":"foo",
|
||||
"outputs": []
|
||||
}]
|
||||
```
|
||||
|
@ -458,6 +458,8 @@ value types and strings.
|
||||
}
|
||||
|
||||
|
||||
.. _constant-functions:
|
||||
|
||||
******************
|
||||
Constant Functions
|
||||
******************
|
||||
|
@ -142,6 +142,7 @@ Contents
|
||||
solidity-in-depth.rst
|
||||
security-considerations.rst
|
||||
using-the-compiler.rst
|
||||
abi-spec.rst
|
||||
style-guide.rst
|
||||
common-patterns.rst
|
||||
bugs.rst
|
||||
|
Loading…
Reference in New Issue
Block a user