Function convertParseError

backend/plugin/parser/doris/doris.go:122–140

convertParseError converts an omni *parser.ParseError to a *base.SyntaxError that sql_service.go recognises for structured error diagnostics. It converts the byte offset in ParseError.Loc to 1-based line and 1-based column (rune-based) matching the storepb.Position convention used across other omni

(statement string, pe *parser.ParseError, basePos *storepb.Position)

// errors from parsing an isolated statement segment are reported in the
// coordinates of the original multi-statement script.
func convertParseError(statement string, pe *parser.ParseError, basePos *storepb.Position) *base.SyntaxError {
	line, col := byteOffsetToPosition(statement, pe.Loc.Start)
	if basePos != nil {
		// The first line of the segment shares a line with basePos, so
		// column offsets only apply when the error is on that line.
		if line == 1 {
			col = int(basePos.Column) + col - 1
		}
		line = int(basePos.Line) + line - 1
	}
	return &base.SyntaxError{
		Position: &storepb.Position{
			Line:   int32(line),
			Column: int32(col),
		},
		Message:    pe.Error(),
		RawMessage: pe.Msg,
	}
}

// byteOffsetToPosition converts a 0-based byte offset to a 1-based line and
// 1-based column (in runes).