C++ (Cpp) TRI_WalkStatementsAql Exemples

Exemple #1

Fichier : ahuacatl-bind-parameter.c Projet : FikiHafana/ArangoDB

bool TRI_InjectBindParametersAql (TRI_aql_context_t* const context) {
  TRI_aql_statement_walker_t* walker;

  assert(context);

  if (TRI_GetLengthAssociativePointer(&context->_parameters._names) == 0) {
    // no bind parameters used in query, instantly return
    return true;
  }

  walker = TRI_CreateStatementWalkerAql(context, true, &InjectParameter, NULL, NULL);

  if (walker == NULL) {
    TRI_SetErrorContextAql(context, TRI_ERROR_OUT_OF_MEMORY, NULL);

    return false;
  }

  TRI_WalkStatementsAql(walker, context->_statements);
  TRI_FreeStatementWalkerAql(walker);
  

  walker = TRI_CreateStatementWalkerAql(context, true, &FixAttributeAccess, NULL, NULL);

  if (walker == NULL) {
    TRI_SetErrorContextAql(context, TRI_ERROR_OUT_OF_MEMORY, NULL);

    return false;
  }

  TRI_WalkStatementsAql(walker, context->_statements);
  TRI_FreeStatementWalkerAql(walker);

  return true;
}

Exemple #2

Fichier : ahuacatl-explain.c Projet : MohdVara/ArangoDB

TRI_json_t* TRI_ExplainAql (TRI_aql_context_t* const context) {
  TRI_aql_statement_walker_t* walker;
  TRI_aql_explain_t* explain;
  TRI_json_t* result;

  explain = CreateExplain(context);

  if (explain == NULL) {
    TRI_SetErrorContextAql(__FILE__, __LINE__, context, TRI_ERROR_OUT_OF_MEMORY, NULL);

    return NULL;
  }

  walker = TRI_CreateStatementWalkerAql((void*) explain,
                                        false,
                                        NULL,
                                        &ProcessStatement,
                                        NULL);

  if (walker == NULL) {
    FreeExplain(explain);
    TRI_SetErrorContextAql(__FILE__, __LINE__, context, TRI_ERROR_OUT_OF_MEMORY, NULL);

    return NULL;
  }

  TRI_WalkStatementsAql(walker, context->_statements);
  result = explain->_result;

  FreeExplain(explain);

  TRI_FreeStatementWalkerAql(walker);

  return result;
}

Exemple #3

Fichier : ahuacatl-statement-dump.c Projet : eranshir/ArangoDB

void TRI_DumpStatementsAql (TRI_aql_statement_list_t* const statements) {
  TRI_aql_statement_walker_t* walker;
  TRI_aql_dump_t state;

  state._indent = 0;

  walker = TRI_CreateStatementWalkerAql((void*) &state,
                                        false,
                                        &DumpNode,
                                        &DumpStatementStart,
                                        &DumpStatementEnd);
  if (walker == NULL) {
    return;
  }

  TRI_WalkStatementsAql(walker, statements);

  TRI_FreeStatementWalkerAql(walker);
}

Exemple #4

Fichier : ahuacatl-optimiser.c Projet : luxyer/ArangoDB

static bool DetermineIndexes (aql_optimiser_t* const optimiser) {
  TRI_aql_statement_walker_t* walker;

  walker = TRI_CreateStatementWalkerAql((void*) optimiser, 
                                        false,
                                        &AnnotateNode, 
                                        NULL, 
                                        NULL);
  if (walker == NULL) {
    TRI_SetErrorContextAql(optimiser->_context, TRI_ERROR_OUT_OF_MEMORY, NULL);

    return false;
  }

  TRI_WalkStatementsAql(walker, optimiser->_context->_statements); 

  TRI_FreeStatementWalkerAql(walker);

  return true;
}

Exemple #5

Fichier : ahuacatl-optimiser.c Projet : luxyer/ArangoDB

static bool OptimiseAst (aql_optimiser_t* const optimiser) {
  TRI_aql_statement_walker_t* walker;

  walker = TRI_CreateStatementWalkerAql((void*) optimiser, 
                                        true,
                                        &OptimiseNode,
                                        NULL, 
                                        &ProcessStatement);
  if (walker == NULL) {
    TRI_SetErrorContextAql(optimiser->_context, TRI_ERROR_OUT_OF_MEMORY, NULL);

    return false;
  }

  TRI_WalkStatementsAql(walker, optimiser->_context->_statements); 

  TRI_FreeStatementWalkerAql(walker);

  return true;
}