external/ton
1
0
Fork 0
mirror of https://github.com/ton-blockchain/ton synced 2025-03-09 15:40:10 +00:00
Code Issues Releases Wiki Activity

[FunC] Require parenthesis in tricky bitwise precedence cases

Browse source 
Example: "flags & 0xFF != 0" is equivalent to "flags & 1",
most likely it's unexpected.
Example: "a << 2 + 1" (equal to "a << 3", probably unexpected).

The only way to suppress this error for the programmer
is to use parenthesis.
This commit is contained in:
Aleksandr Kirsanov 2024-06-21 15:39:19 +03:00
parent 5867d52926
commit 79721d230e
No known key found for this signature in database
GPG key ID: B758BBAA01FFB3D3
10 changed files with 189 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

5
crypto/func/func.h
View file

@ -946,7 +946,7 @@ struct Expr {
};
ExprCls cls;
int val{0};
enum { _IsType = 1, _IsRvalue = 2, _IsLvalue = 4, _IsImpure = 32 };
enum { _IsType = 1, _IsRvalue = 2, _IsLvalue = 4, _IsImpure = 32, _IsInsideParenthesis = 64 };
int flags{0};
SrcLocation here;
td::RefInt256 intval;
@ -988,6 +988,9 @@ struct Expr {
bool is_type() const {
return flags & _IsType;
}
bool is_inside_parenthesis() const {
return flags & _IsInsideParenthesis;
}
bool is_type_apply() const {
return cls == _TypeApply;
}