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Fix examples and add explanation.

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chriseth 2016-11-21 17:09:08 +01:00
parent 81eea45c2d
commit 73eb0235b4
1 changed files with 5 additions and 1 deletions
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docs/types.rst
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@ -312,6 +312,10 @@ If external function types are used outside of the context of Solidity,
they are treated as the ``function`` type, which encodes the address
followed by the function identifier together in a single ``bytes24`` type.
Note that public functions of the current contract can be used both as an
internal and as an external function. To use ``f`` as an internal function,
just use ``f``, if you want to use its external form, use ``this.f``.
Example that shows how to use internal function types::
pragma solidity ^0.4.5;
@ -385,7 +389,7 @@ Another example that uses external function types::
contract OracleUser {
Oracle constant oracle = Oracle(0x1234567); // known contract
function buySomething() {
oracle.query("USD", oracleResponse);
oracle.query("USD", this.oracleResponse);
}
function oracleResponse(bytes response) {
if (msg.sender != address(oracle)) throw;