cerc-io/solidity
16
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

Parsing accessor functions for public contract state variables

Browse Source 
- During the contract parsing depending on whether or not a state
  variable is public an extra acessor FunctionDefinition is parsed for it
This commit is contained in:
Lefteris Karapetsas 2015-01-21 17:19:57 +01:00
parent 282d4b8add
commit 97c31b3e7d
2 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
Parser.cpp
View File

@ -109,6 +109,29 @@ ASTPointer<ImportDirective> Parser::parseImportDirective()
return nodeFactory.createNode<ImportDirective>(url);
}
void Parser::addStateVariableAccessor(ASTPointer<VariableDeclaration> const& _varDecl,
vector<ASTPointer<FunctionDefinition>> & _functions)
{
ASTNodeFactory nodeFactory(*this);
ASTPointer<ASTString> emptyDoc;
ASTPointer<ParameterList> emptyParamList;
nodeFactory.markEndPosition();
auto expression = nodeFactory.createNode<Identifier>(make_shared<ASTString>(_varDecl->getName()));
vector<ASTPointer<Statement>> block_statements = {nodeFactory.createNode<Return>(expression)};
_functions.push_back(nodeFactory.createNode<FunctionDefinition>(
make_shared<ASTString>(_varDecl->getName()),
true, // isPublic
false, // not a Constructor
emptyDoc, // no documentation
emptyParamList, // no parameters (temporary, a mapping would need parameters for example)
true, // is constant
emptyParamList, // no return parameters
nodeFactory.createNode<Block>(block_statements)
)
);
}
ASTPointer<ContractDefinition> Parser::parseContractDefinition()
{
ASTNodeFactory nodeFactory(*this);
@ -151,6 +174,8 @@ ASTPointer<ContractDefinition> Parser::parseContractDefinition()
{
bool const allowVar = false;
stateVariables.push_back(parseVariableDeclaration(allowVar));
if (visibilityIsPublic)
addStateVariableAccessor(stateVariables.back(), functions);
expectToken(Token::SEMICOLON);
}
else if (currentToken == Token::MODIFIER)

4
Parser.h
View File

@ -78,6 +78,10 @@ private:
///@{
///@name Helper functions
/// Depending on whether a state Variable is Public, appends an accessor to the contract's functions
void addStateVariableAccessor(ASTPointer<VariableDeclaration> const& _varDecl,
std::vector<ASTPointer<FunctionDefinition>> & _functions);
/// Peeks ahead in the scanner to determine if a variable definition is going to follow
bool peekVariableDefinition();