🚑 [macros] Corrige rutas absolutas en html!

- Mantiene fijas las rutas absolutas en las funciones de la macro html!.
- Introduce un alias interno del crate (`extern crate self as pagetop;`)
  en `src/lib.rs` para que las expansiones funcionen uniformemente en
  tests, ejemplos y dependencias externas.

helpers/pagetop-macros/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pagetop-macros"
-version = "0.0.4"
+version = "0.0.5"
 edition = "2021"
 
 description = """\
@@ -20,6 +20,5 @@ proc-macro = true
 [dependencies]
 proc-macro2 = "1.0.95"
 proc-macro2-diagnostics = { version = "0.10.1", default-features = false }
-proc-macro-crate = "3.3.0"
 quote = "1.0.40"
 syn = { version = "2.0.104", features = ["full"] }

helpers/pagetop-macros/src/maud.rs

@@ -10,7 +10,6 @@ mod generate;
 use ast::DiagnosticParse;
 use proc_macro2::{Ident, Span, TokenStream};
 use proc_macro2_diagnostics::Diagnostic;
-use proc_macro_crate::{crate_name, FoundCrate};
 use quote::quote;
 use syn::parse::{ParseStream, Parser};
 
@@ -41,20 +40,11 @@ pub fn expand(input: TokenStream) -> TokenStream {
     let output_ident = Ident::new("__maud_output", Span::mixed_site());
     let stmts = generate::generate(markups, output_ident.clone());
 
-    let found_crate = crate_name("pagetop").expect("pagetop must be in Cargo.toml");
-    let crate_ident = match found_crate {
-        FoundCrate::Itself => Ident::new("pagetop", Span::call_site()),
-        FoundCrate::Name(ref name) => Ident::new(name, Span::call_site()),
-    };
-    let pre_escaped = quote! {
-        #crate_ident::html::PreEscaped(#output_ident)
-    };
-
     quote! {{
         extern crate alloc;
         let mut #output_ident = alloc::string::String::with_capacity(#size_hint);
         #stmts
         #(#diag_tokens)*
-        #pre_escaped
+        pagetop::html::PreEscaped(#output_ident)
     }}
 }

helpers/pagetop-macros/src/maud/generate.rs

@@ -4,8 +4,6 @@ use syn::{parse_quote, token::Brace, Expr, Local};
 
 use crate::maud::{ast::*, escape};
 
-use proc_macro_crate::{crate_name, FoundCrate};
-
 pub fn generate(markups: Markups<Element>, output_ident: Ident) -> TokenStream {
     let mut build = Builder::new(output_ident.clone());
     Generator::new(output_ident).markups(markups, &mut build);
@@ -68,15 +66,9 @@ impl Generator {
 
     fn splice(&self, expr: Expr, build: &mut Builder) {
         let output_ident = &self.output_ident;
-
-        let found_crate = crate_name("pagetop").expect("pagetop debe existir en Cargo.toml");
-        let crate_ident = match found_crate {
-            FoundCrate::Itself => Ident::new("pagetop", Span::call_site()),
-            FoundCrate::Name(name) => Ident::new(&name, Span::call_site()),
-        };
-        build.push_tokens(quote! {
-            #crate_ident::html::html_private::render_to!(&(#expr), &mut #output_ident);
-        });
+        build.push_tokens(
+            quote!(pagetop::html::html_private::render_to!(&(#expr), &mut #output_ident);),
+        );
     }
 
     fn element(&self, element: Element, build: &mut Builder) {