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Error on duplicated super constructor calls

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This commit is contained in:
Federico Bond
2018-04-09 11:22:35 +02:00
committed by Daniel Kirchner
parent fe61435c27
commit 4e037281ac
7 changed files with 55 additions and 9 deletions
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docs/contracts.rst
+9 -5
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@@ -1034,9 +1034,12 @@ the base constructors. This can be done in two ways::
constructor(uint _x) public { x = _x; }
}
contract Derived is Base(7) {
constructor(uint _y) Base(_y * _y) public {
}
contract Derived1 is Base(7) {
constructor(uint _y) public {}
}
contract Derived2 is Base {
constructor(uint _y) Base(_y * _y) public {}
}
One way is directly in the inheritance list (``is Base(7)``). The other is in
@@ -1046,8 +1049,9 @@ do it is more convenient if the constructor argument is a
constant and defines the behaviour of the contract or
describes it. The second way has to be used if the
constructor arguments of the base depend on those of the
derived contract. If, as in this silly example, both places
are used, the modifier-style argument takes precedence.
derived contract. Arguments have to be given either in the
inheritance list or in modifier-style in the derived constuctor.
Specifying arguments in both places is an error.
.. index:: ! inheritance;multiple, ! linearization, ! C3 linearization