Struct spacetimedb::vm::DbProgram

pub struct DbProgram<'db, 'tx> { /* private fields */ }

A ProgramVm implementation that carry a RelationalDB for it query execution

Implementations

impl<'db, 'tx> DbProgram<'db, 'tx>

pub fn new( ctx: &'tx ExecutionContext<'_>, db: &'db RelationalDB, tx: &'tx mut TxMode<'tx>, auth: AuthCtx ) -> Self

Trait Implementations

impl ProgramVm for DbProgram<'_, '_>

fn address(&self) -> Option<Address>

fn env(&self) -> &EnvDb

fn env_mut(&mut self) -> &mut EnvDb

fn ctx(&self) -> &dyn ProgramVm

fn auth(&self) -> &AuthCtx

fn eval_query(&mut self, query: CrudCode) -> Result<Code, ErrorVm>

Allows to execute the query with the state carried by the implementation of this trait

fn as_program_ref(&self) -> ProgramRef<'_>

fn load_ops(env: &mut EnvDb)

where Self: Sized,

Load the in-built functions that define the operators of the VM, like +, and, ==, etc.

fn add_lambda(&mut self, f: FunDef, body: Code)

Add a function that is defined natively by Code

fn update_lambda(&mut self, f: FunDef, body: Code)

fn add_ident(&mut self, name: &str, v: Code)

Add a ident into the environment, similar to let x = expr

fn find_ident(&self, key: &str) -> Option<&Code>

Locates the ident in the environment