Trait IntoAttrValue 

pub trait IntoAttrValue {
    // Required method
    fn into_attr_value(self) -> AttrValue;
}

The bound on every attribute value - what DomElement::attr and the dom! macro accept.

Vertigo implements it exactly once, as a blanket over Into<AttrValue>; it exists so that the compiler has somewhere to hang an explanation. The conversions that blanket picks up are the From impls below plus whatever opts in through DomDisplay, and a type outside both fails a From bound whose error names a hundred impls and none of the ones you want.

A crate of its own may implement this trait directly for its own type - coherence permits it, since only that crate could ever give the type a DomDisplay impl. But DomDisplay is one line rather than a function body, it also reaches &T, Computed<T> and Value<T>, and it renders the same type as a text node in dom! too.

Required Methods

fn into_attr_value(self) -> AttrValue

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: Into<AttrValue>> IntoAttrValue for T

Without this, a missing conversion is reported as the From obligation inside this impl - a hundred From impls and no advice - rather than as the bound the call site actually wrote.