1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Scope - object that holds declaration of names.
*/
#include <libsolidity/analysis/DeclarationContainer.h>
#include <libsolidity/ast/AST.h>
#include <libsolidity/ast/Types.h>
#include <libdevcore/StringUtils.h>
using namespace std;
using namespace dev;
using namespace dev::solidity;
Declaration const* DeclarationContainer::conflictingDeclaration(
Declaration const& _declaration,
ASTString const* _name
) const
{
if (!_name)
_name = &_declaration.name();
solAssert(!_name->empty(), "");
vector<Declaration const*> declarations;
if (m_declarations.count(*_name))
declarations += m_declarations.at(*_name);
if (m_invisibleDeclarations.count(*_name))
declarations += m_invisibleDeclarations.at(*_name);
if (
dynamic_cast<FunctionDefinition const*>(&_declaration) ||
dynamic_cast<EventDefinition const*>(&_declaration)
)
{
// check that all other declarations with the same name are functions or a public state variable or events.
// And then check that the signatures are different.
for (Declaration const* declaration: declarations)
{
if (auto variableDeclaration = dynamic_cast<VariableDeclaration const*>(declaration))
{
if (variableDeclaration->isStateVariable() && !variableDeclaration->isConstant() && variableDeclaration->isPublic())
continue;
return declaration;
}
if (
dynamic_cast<FunctionDefinition const*>(&_declaration) &&
!dynamic_cast<FunctionDefinition const*>(declaration)
)
return declaration;
if (
dynamic_cast<EventDefinition const*>(&_declaration) &&
!dynamic_cast<EventDefinition const*>(declaration)
)
return declaration;
// Or, continue.
}
}
else if (declarations.size() == 1 && declarations.front() == &_declaration)
return nullptr;
else if (!declarations.empty())
return declarations.front();
return nullptr;
}
bool DeclarationContainer::registerDeclaration(
Declaration const& _declaration,
ASTString const* _name,
bool _invisible,
bool _update
)
{
if (!_name)
_name = &_declaration.name();
if (_name->empty())
return true;
if (_update)
{
solAssert(!dynamic_cast<FunctionDefinition const*>(&_declaration), "Attempt to update function definition.");
m_declarations.erase(*_name);
m_invisibleDeclarations.erase(*_name);
}
else if (conflictingDeclaration(_declaration, _name))
return false;
vector<Declaration const*>& decls = _invisible ? m_invisibleDeclarations[*_name] : m_declarations[*_name];
if (!contains(decls, &_declaration))
decls.push_back(&_declaration);
return true;
}
vector<Declaration const*> DeclarationContainer::resolveName(ASTString const& _name, bool _recursive) const
{
solAssert(!_name.empty(), "Attempt to resolve empty name.");
auto result = m_declarations.find(_name);
if (result != m_declarations.end())
return result->second;
if (_recursive && m_enclosingContainer)
return m_enclosingContainer->resolveName(_name, true);
return vector<Declaration const*>({});
}
vector<ASTString> DeclarationContainer::similarNames(ASTString const& _name) const
{
vector<ASTString> similar;
for (auto const& declaration: m_declarations)
{
string const& declarationName = declaration.first;
if (stringWithinDistance(_name, declarationName, MAXIMUM_DISTANCE))
similar.push_back(declarationName);
}
if (m_enclosingContainer)
{
vector<ASTString> enclosingSimilar = m_enclosingContainer->similarNames(_name);
similar.insert(similar.end(), enclosingSimilar.begin(), enclosingSimilar.end());
}
return similar;
}
|
