blob: 871bf0a9843726ec6a0a6000167b778b0e484133 (
plain) (
blame)
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
|
/*
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/>.
*/
#pragma once
#include <libsolidity/analysis/TypeChecker.h>
#include <libsolidity/ast/Types.h>
#include <libsolidity/ast/ASTAnnotations.h>
#include <libsolidity/ast/ASTForward.h>
#include <libsolidity/ast/ASTVisitor.h>
namespace dev
{
namespace solidity
{
/**
* The module that performs syntax analysis on the AST:
* - whether continue/break is in a for/while loop.
* - whether a modifier contains at least one '_'
* - issues deprecation warnings for unary '+'
* - issues deprecation warning for throw
*/
class SyntaxChecker: private ASTConstVisitor
{
public:
/// @param _errorReporter provides the error logging functionality.
SyntaxChecker(ErrorReporter& _errorReporter): m_errorReporter(_errorReporter) {}
bool checkSyntax(ASTNode const& _astRoot);
private:
virtual bool visit(SourceUnit const& _sourceUnit) override;
virtual void endVisit(SourceUnit const& _sourceUnit) override;
virtual bool visit(PragmaDirective const& _pragma) override;
virtual bool visit(ModifierDefinition const& _modifier) override;
virtual void endVisit(ModifierDefinition const& _modifier) override;
virtual bool visit(WhileStatement const& _whileStatement) override;
virtual void endVisit(WhileStatement const& _whileStatement) override;
virtual bool visit(ForStatement const& _forStatement) override;
virtual void endVisit(ForStatement const& _forStatement) override;
virtual bool visit(Continue const& _continueStatement) override;
virtual bool visit(Break const& _breakStatement) override;
virtual bool visit(Throw const& _throwStatement) override;
virtual bool visit(UnaryOperation const& _operation) override;
virtual bool visit(PlaceholderStatement const& _placeholderStatement) override;
virtual bool visit(FunctionDefinition const& _function) override;
virtual bool visit(FunctionTypeName const& _node) override;
virtual bool visit(VariableDeclaration const& _declaration) override;
ErrorReporter& m_errorReporter;
/// Flag that indicates whether a function modifier actually contains '_'.
bool m_placeholderFound = false;
/// Flag that indicates whether some version pragma was present.
bool m_versionPragmaFound = false;
int m_inLoopDepth = 0;
SourceUnit const* m_sourceUnit = nullptr;
};
}
}
|
