TODO: remove Eh as generic

Atom is the atomic identifier text range in the expression. Property is the additional information for rewriting.

Converts template ast node to intermediate representation. It defines the most generic Converter interface. The IR format can be platform specific. e.

Default implementation sketch can be used in DOM/SSR. Other platform might invent and use their own IR.

Directive's prop argument passed to VNodeCall after conversion. Use Dropped if the directive is dropped implicitly without codegen. NB: this is not 10

This trait handles error occured in the compilation. NB: clone bound is needed since scan/parse/ir/code gen all requires ownership of a error report.

A scanner needs to implement this trait to know if it is_in_html_namespace. A parser tells scanner the current namespace through the trait's method. B

just allocate if complex expressions are used users should not abuse expression in template dont have time to optimize it :(

Records how v-on handler is written in the template. Variants will be compiled differently (also depends on `cache_handlers`).

since std::lazy::Lazy is not stable it is not thread safe, not Sync. it is Send if F and T is Send

This trait produces a compiler's current position and selects a range.

TODO: reduce vec allocation by using Drain iter but using drain need GAT

collecting props object for vnode call. e.g: <:prop="val" v-bind="obj"/> becomes {prop: val, ...obj}