cerc-io/solidity
11
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

User-defined operators: Parsing and grammar

Browse Source
This commit is contained in:
wechman
2023-01-24 16:51:29 +01:00
committed by Kamil Śliwak
parent f18f40a32e
commit 93a8250c96
2 changed files with 51 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/grammar/SolidityParser.g4
+25 -1
View File
@@ -311,11 +311,35 @@ errorDefinition:
LParen (parameters+=errorParameter (Comma parameters+=errorParameter)*)? RParen
Semicolon;
/**
* Operators that users are allowed to implement for some types with `using for`.
*/
userDefinableOperator:
BitAnd
| BitNot
| BitOr
| BitXor
| Sar
| Shl
| Add
| Div
| Exp
| Mod
| Mul
| Sub
| Equal
| GreaterThan
| GreaterThanOrEqual
| LessThan
| LessThanOrEqual
| NotEqual
| Not;
/**
* Using directive to attach library functions and free functions to types.
* Can occur within contracts and libraries and at the file level.
*/
usingDirective: Using (identifierPath | (LBrace identifierPath (Comma identifierPath)* RBrace)) For (Mul | typeName) Global? Semicolon;
usingDirective: Using (identifierPath | (LBrace identifierPath (As userDefinableOperator)? (Comma identifierPath (As userDefinableOperator)?)* RBrace)) For (Mul | typeName) Global? Semicolon;
/**
* A type name can be an elementary type, a function type, a mapping type, a user-defined type
* (e.g. a contract or struct) or an array type.