Struct SurveyDefinition 

pub struct SurveyDefinition {
    pub prelude: Option<String>,
    pub questions: Vec<Question>,
    pub epilogue: Option<String>,
}

The top-level structure containing all questions and metadata for a survey.

A survey is a structured collection of questions. It’s presentation-agnostic — it can be rendered as a sequential interview, a fill-in form, or used to generate documents.

Fields

prelude: Option<String>

Optional message shown before the survey starts.

questions: Vec<Question>

All questions in the survey (may contain nested AllOf/OneOf/AnyOf).

epilogue: Option<String>

Optional message shown after the survey completes.

Implementations

impl SurveyDefinition

pub fn new(questions: Vec<Question>) -> Self

Create a new survey definition with the given questions.

pub fn empty() -> Self

Create an empty survey definition.

pub fn with_prelude(self, prelude: impl Into<String>) -> Self

Set the prelude message.

pub fn with_epilogue(self, epilogue: impl Into<String>) -> Self

Set the epilogue message.

pub fn questions(&self) -> &[Question]

Get the questions.

pub fn questions_mut(&mut self) -> &mut Vec<Question>

Get a mutable reference to the questions.

pub fn is_empty(&self) -> bool

Check if the survey has any questions.

pub fn len(&self) -> usize

Get the number of top-level questions.

Trait Implementations

impl Clone for SurveyDefinition

fn clone(&self) -> SurveyDefinition

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SurveyDefinition

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SurveyDefinition

fn default() -> Self

Returns the “default value” for a type.