VariableDeclaration::VariableDeclaration(lexer::Lexer &lex, symtable::SymbolTable * table) : Statement(table) {
switch(NextType(lex)) {
case lexer::VAR:
consumeLexemeType(lex,lexer::VAR);
variable = true;
break;
case lexer::CONST:
consumeLexemeType(lex,lexer::CONST);
variable = false;
break;
default:
throw std::runtime_error(std::string(__FILE__) + ":" + std::to_string(__LINE__) + ", expected var or const");
}
kind = variable? symtable::Var:symtable::Const;
name = new Identifier(lex, table);
if(NextType(lex) == lexer::EQUAL) {
consumeLexemeType(lex,lexer::EQUAL);
value = new Expression(lex, table);
} else {
type = new Type(lex, table);
}
}
static TRI_aql_scope_t* CreateScope (TRI_aql_context_t* const context,
const TRI_aql_scope_e type) {
TRI_aql_scope_t* scope;
assert(context);
scope = (TRI_aql_scope_t*) TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, sizeof(TRI_aql_scope_t), false);
if (scope == NULL) {
return NULL;
}
scope->_id = NextId(context);
scope->_type = NextType(context, type);
scope->_ranges = NULL;
scope->_selfContained = true;
TRI_InitAssociativePointer(&scope->_variables,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashVariableAql,
&TRI_EqualVariableAql,
0);
return scope;
}
// E = F | F ( "+" | "-" | "|" ) E
// F = T | T ( "*" | "/" | "%" | "&" ) F
// T = (E) | ID | LIT | F_CALL
Factor::Factor(lexer::Lexer & lex, symtable::SymbolTable * table) : Ast(table) { //, lhs(nullptr), rhs(nullptr), op(nullptr) {
rhs = new Term(lex, table);
bool doIt = true;
Operator* op;
while(doIt) {
switch(NextType(lex)) {
case lexer::MUL:
op = new Operator(Operator::MultiplicationOperator);
list.push_back({rhs,op});
lex.Next();
lex.HasNext();
rhs = new Term(lex, table);
break;
case lexer::DIV:
op = new Operator(Operator::DivisionOperator);
list.push_back({rhs,op});
lex.Next();
lex.HasNext();
rhs = new Term(lex, table);
break;
case lexer::AND:
op = new Operator(Operator::AndOperator);
list.push_back({rhs,op});
lex.Next();
lex.HasNext();
rhs = new Term(lex, table);
break;
case lexer::MOD:
op = new Operator(Operator::ModulusOperator);
list.push_back({rhs,op});
lex.Next();
lex.HasNext();
rhs = new Term(lex, table);
break;
default:
doIt = false;
//op = new Operator(Operator::None);
break;
}
}
/*
// We found an operator, consume it
if(op->GetType() != Operator::None) {
lex.Next();
lex.HasNext();
rhs = new Factor(lex,table);
}
*/
}
static TRI_aql_scope_t* CreateScope (TRI_aql_context_t* const context,
const TRI_aql_scope_e type) {
TRI_aql_scope_t* scope;
int res;
assert(context);
scope = (TRI_aql_scope_t*) TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, sizeof(TRI_aql_scope_t), false);
if (scope == NULL) {
return NULL;
}
scope->_type = NextType(context, type);
scope->_ranges = NULL;
scope->_selfContained = true;
scope->_empty = false;
scope->_level = 0; // init with a dummy value
scope->_limit._offset = 0;
scope->_limit._limit = INT64_MAX;
scope->_limit._status = TRI_AQL_LIMIT_UNDEFINED;
scope->_limit._hasFilter = false;
scope->_limit._found = 0;
if (context->_fullCount) {
// if option "fullCount" is specified, we must ignore all limit optimisations
scope->_limit._status = TRI_AQL_LIMIT_IGNORE;
}
TRI_InitVectorPointer(&scope->_sorts, TRI_UNKNOWN_MEM_ZONE);
res = TRI_InitAssociativePointer(&scope->_variables,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashVariableAql,
&TRI_EqualVariableAql,
0);
if (res != TRI_ERROR_NO_ERROR) {
TRI_DestroyVectorPointer(&scope->_sorts);
TRI_Free(TRI_UNKNOWN_MEM_ZONE, scope);
return NULL;
}
return scope;
}
