Struct MigrationStep 

pub struct MigrationStep {
    pub prompt: String,
    pub verb: Verb,
    pub object_desc: String,
    pub ddl: Vec<DiffOp>,
    pub op_key: OpKey,
    pub required_input: Vec<RequiredInput>,
}

Fields

prompt: String

"did you {verb} {object_desc}?" — matches the phrasing convention this feature is modeled on.

verb: Verb

object_desc: String

e.g. "scalar type 'perspective::DomainStatus'".

ddl: Vec<DiffOp>

Every statement that answers this one question, in emission order. A statement may contain a \(placeholder) token — see required_input — that the caller must substitute before executing it.

op_key: OpKey

required_input: Vec<RequiredInput>

Free-form expressions the caller must supply before this step’s ddl is usable — e.g. a conversion expression for a property’s type change. Empty for the common case.

Implementations

impl MigrationStep

pub fn resolved_ddl(&self, overrides: &HashMap<String, String>) -> Vec<DiffOp>

This step’s DDL with every \(placeholder) token substituted — overrides.get(placeholder) if present, else that input’s own default_expr. Statements naming no placeholder pass through as-is.

Trait Implementations

impl Debug for MigrationStep

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

Formats the value using the given formatter.