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
139
140
141
142
143
144
145
146
147
148
|
/*
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/>.
*/
/**
* Module responsible for registering identifiers inside their scopes.
*/
#include <libsolidity/inlineasm/AsmScopeFiller.h>
#include <libsolidity/inlineasm/AsmData.h>
#include <libsolidity/inlineasm/AsmScope.h>
#include <libsolidity/inlineasm/AsmAnalysisInfo.h>
#include <libsolidity/interface/ErrorReporter.h>
#include <libsolidity/interface/Utils.h>
#include <boost/range/adaptor/reversed.hpp>
#include <memory>
#include <functional>
using namespace std;
using namespace dev;
using namespace dev::solidity;
using namespace dev::solidity::assembly;
ScopeFiller::ScopeFiller(AsmAnalysisInfo& _info, ErrorReporter& _errorReporter):
m_info(_info), m_errorReporter(_errorReporter)
{
m_currentScope = &scope(nullptr);
}
bool ScopeFiller::operator()(Label const& _item)
{
if (!m_currentScope->registerLabel(_item.name))
{
//@TODO secondary location
m_errorReporter.declarationError(
_item.location,
"Label name " + _item.name + " already taken in this scope."
);
return false;
}
return true;
}
bool ScopeFiller::operator()(assembly::VariableDeclaration const& _varDecl)
{
for (auto const& variable: _varDecl.variables)
if (!registerVariable(variable, _varDecl.location, *m_currentScope))
return false;
return true;
}
bool ScopeFiller::operator()(assembly::FunctionDefinition const& _funDef)
{
bool success = true;
vector<Scope::JuliaType> arguments;
for (auto const& _argument: _funDef.arguments)
arguments.push_back(_argument.type);
vector<Scope::JuliaType> returns;
for (auto const& _return: _funDef.returns)
returns.push_back(_return.type);
if (!m_currentScope->registerFunction(_funDef.name, arguments, returns))
{
//@TODO secondary location
m_errorReporter.declarationError(
_funDef.location,
"Function name " + _funDef.name + " already taken in this scope."
);
success = false;
}
auto virtualBlock = m_info.virtualBlocks[&_funDef] = make_shared<Block>();
Scope& varScope = scope(virtualBlock.get());
varScope.superScope = m_currentScope;
m_currentScope = &varScope;
varScope.functionScope = true;
for (auto const& var: _funDef.arguments + _funDef.returns)
if (!registerVariable(var, _funDef.location, varScope))
success = false;
if (!(*this)(_funDef.body))
success = false;
solAssert(m_currentScope == &varScope, "");
m_currentScope = m_currentScope->superScope;
return success;
}
bool ScopeFiller::operator()(Switch const& _switch)
{
bool success = true;
for (auto const& _case: _switch.cases)
if (!(*this)(_case.body))
success = false;
return success;
}
bool ScopeFiller::operator()(Block const& _block)
{
bool success = true;
scope(&_block).superScope = m_currentScope;
m_currentScope = &scope(&_block);
for (auto const& s: _block.statements)
if (!boost::apply_visitor(*this, s))
success = false;
m_currentScope = m_currentScope->superScope;
return success;
}
bool ScopeFiller::registerVariable(TypedName const& _name, SourceLocation const& _location, Scope& _scope)
{
if (!_scope.registerVariable(_name.name, _name.type))
{
//@TODO secondary location
m_errorReporter.declarationError(
_location,
"Variable name " + _name.name + " already taken in this scope."
);
return false;
}
return true;
}
Scope& ScopeFiller::scope(Block const* _block)
{
auto& scope = m_info.scopes[_block];
if (!scope)
scope = make_shared<Scope>();
return *scope;
}
|
