Struct Generator 

pub struct Generator {
    pub breakpoints: bool,
}

Available on crate feature std only.

Fields

breakpoints: bool

Implementations

impl Generator

pub const fn new() -> Generator

pub const fn with_breakpoints(self, breakpoints: bool) -> Generator

pub fn generate(&self, diff: &[EntityDiff]) -> Vec<String>

Generate SQL statements from a set of entity diffs.

Panics

Panics if a table listed in created_tables is not found in diff — this cannot happen in practice because created_tables is built from diff itself.

pub fn generate_with_ddl( &self, diff: &[EntityDiff], cur_ddl: Option<&PostgresDDL>, ) -> Vec<String>

Generate SQL statements from a set of entity diffs, with access to the full current DDL for cross-entity lookups (e.g. finding the columns that depend on an enum being recreated).

Statement ordering is dependency-phased:

1. creates of schemas → enums → sequences → roles,
2. drops of views,
3. drops of table sub-entities on surviving tables (FKs/indexes/constraints/policies before columns),
4. table drops in reverse dependency order,
5. table creates in dependency order (with inlined sub-entities),
6. sub-entity creates on pre-existing tables (columns first),
7. alters (including ALTER COLUMN ... USING enum conversions),
8. enum and sequence drops (after alters so USING casts run before DROP TYPE),
9. view creates,
10. role and schema drops.

Panics

Panics if a table listed in created_tables is not found in diff — this cannot happen in practice because created_tables is built from diff itself.

Trait Implementations

impl Default for Generator

fn default() -> Generator

Returns the “default value” for a type.