Trait LoadConstantFn

pub trait LoadConstantFn<'a, H: ?Sized, CC: CustomConst + ?Sized>: for<'c> Fn(&mut EmitFuncContext<'c, 'a, H>, &CC) -> Result<BasicValueEnum<'c>> + 'a { }

A helper trait for describing the callback used for emitting CustomConsts, and for hanging documentation. We have the appropriate Fn as a supertrait, and there is a blanket impl for that Fn. We do not intend users to impl this trait.

LoadConstantFn callbacks for CC, which must impl CustomConst, should materialise an appropriate BasicValueEnum. The type of this value must match the result of EmitFuncContext::llvm_type on CustomConst::get_type.

Callbacks may hold references with lifetimes older than 'a.

Implementors

impl<'a, H: ?Sized, CC: ?Sized + CustomConst, F: 'a + ?Sized + for<'c> Fn(&mut EmitFuncContext<'c, 'a, H>, &CC) -> Result<BasicValueEnum<'c>>> LoadConstantFn<'a, H, CC> for F