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Imported Upstream version 5.0.0.42

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Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2017-04-10 11:41:01 +00:00
parent 1190d13a04
commit 6bdd276d05
19939 changed files with 3099680 additions and 93811 deletions
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62
mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteDataReader.cs
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@@ -555,8 +555,8 @@ namespace Mono.Data.Sqlite
return GetSchemaTable(true, false);
}
static bool hasColumnMetadataSupport = true;
static bool hasColumnMetadataSupport = true;
internal DataTable GetSchemaTable(bool wantUniqueInfo, bool wantDefaultValue)
{
CheckClosed();
@@ -565,7 +565,9 @@ namespace Mono.Data.Sqlite
DataTable tblIndexes = null;
DataTable tblIndexColumns;
DataRow row;
#if !MONOTOUCH
string temp;
#endif
string strCatalog = "";
string strTable = "";
string strColumn = "";
@@ -622,34 +624,34 @@ namespace Mono.Data.Sqlite
row[SchemaTableColumn.DataType] = GetFieldType(n);
row[SchemaTableOptionalColumn.IsHidden] = false;
// HACK: Prevent exploding if Sqlite was built without the SQLITE_ENABLE_COLUMN_METADATA option.
//
// This code depends on sqlite3_column_origin_name, which only exists if Sqlite was built with
// the SQLITE_ENABLE_COLUMN_METADATA option. This is not the case on iOS, MacOS or (most?)
// Androids, so we exclude it from the MONOTOUCH build, and degrade on other systems by simply
// omitting the metadata from the result.
//
// TODO: we could implement better fallbacks as proposed in
// https://bugzilla.xamarin.com/show_bug.cgi?id=2128
//
#if !MONOTOUCH
if (hasColumnMetadataSupport) {
try {
strColumn = _command.Connection._sql.ColumnOriginalName(_activeStatement, n);
if (String.IsNullOrEmpty(strColumn) == false) row[SchemaTableColumn.BaseColumnName] = strColumn;
row[SchemaTableColumn.IsExpression] = String.IsNullOrEmpty(strColumn);
row[SchemaTableColumn.IsAliased] = (String.Compare(GetName(n), strColumn, true, CultureInfo.InvariantCulture) != 0);
temp = _command.Connection._sql.ColumnTableName(_activeStatement, n);
if (String.IsNullOrEmpty(temp) == false) row[SchemaTableColumn.BaseTableName] = temp;
temp = _command.Connection._sql.ColumnDatabaseName(_activeStatement, n);
if (String.IsNullOrEmpty(temp) == false) row[SchemaTableOptionalColumn.BaseCatalogName] = temp;
} catch (EntryPointNotFoundException) {
hasColumnMetadataSupport = false;
}
}
// HACK: Prevent exploding if Sqlite was built without the SQLITE_ENABLE_COLUMN_METADATA option.
//
// This code depends on sqlite3_column_origin_name, which only exists if Sqlite was built with
// the SQLITE_ENABLE_COLUMN_METADATA option. This is not the case on iOS, MacOS or (most?)
// Androids, so we exclude it from the MONOTOUCH build, and degrade on other systems by simply
// omitting the metadata from the result.
//
// TODO: we could implement better fallbacks as proposed in
// https://bugzilla.xamarin.com/show_bug.cgi?id=2128
//
#if !MONOTOUCH
if (hasColumnMetadataSupport) {
try {
strColumn = _command.Connection._sql.ColumnOriginalName(_activeStatement, n);
if (String.IsNullOrEmpty(strColumn) == false) row[SchemaTableColumn.BaseColumnName] = strColumn;
row[SchemaTableColumn.IsExpression] = String.IsNullOrEmpty(strColumn);
row[SchemaTableColumn.IsAliased] = (String.Compare(GetName(n), strColumn, true, CultureInfo.InvariantCulture) != 0);
temp = _command.Connection._sql.ColumnTableName(_activeStatement, n);
if (String.IsNullOrEmpty(temp) == false) row[SchemaTableColumn.BaseTableName] = temp;
temp = _command.Connection._sql.ColumnDatabaseName(_activeStatement, n);
if (String.IsNullOrEmpty(temp) == false) row[SchemaTableOptionalColumn.BaseCatalogName] = temp;
} catch (EntryPointNotFoundException) {
hasColumnMetadataSupport = false;
}
}
#endif
string dataType = null;