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-rw-r--r--askama_derive/src/generator.rs69
-rw-r--r--askama_derive/src/lib.rs61
2 files changed, 67 insertions, 63 deletions
diff --git a/askama_derive/src/generator.rs b/askama_derive/src/generator.rs
index d4d86d0..74d1869 100644
--- a/askama_derive/src/generator.rs
+++ b/askama_derive/src/generator.rs
@@ -1,6 +1,6 @@
-use crate::config::{get_template_source, read_config_file, Config, WhitespaceHandling};
+use crate::config::{get_template_source, WhitespaceHandling};
use crate::heritage::{Context, Heritage};
-use crate::input::{Print, Source, TemplateArgs, TemplateInput};
+use crate::input::{Source, TemplateInput};
use crate::CompileError;
use parser::node::{
@@ -13,60 +13,7 @@ use std::collections::hash_map::{Entry, HashMap};
use std::path::{Path, PathBuf};
use std::{cmp, hash, mem, str};
-/// Takes a `syn::DeriveInput` and generates source code for it
-///
-/// Reads the metadata from the `template()` attribute to get the template
-/// metadata, then fetches the source from the filesystem. The source is
-/// parsed, and the parse tree is fed to the code generator. Will print
-/// the parse tree and/or generated source according to the `print` key's
-/// value as passed to the `template()` attribute.
-pub(crate) fn build_template(ast: &syn::DeriveInput) -> Result<String, CompileError> {
- let template_args = TemplateArgs::new(ast)?;
- let config_toml = read_config_file(template_args.config_path.as_deref())?;
- let config = Config::new(&config_toml, template_args.whitespace.as_ref())?;
- let input = TemplateInput::new(ast, &config, template_args)?;
- let source = match input.source {
- Source::Source(ref s) => s.clone(),
- Source::Path(_) => get_template_source(&input.path)?,
- };
-
- let mut templates = HashMap::new();
- input.find_used_templates(&mut templates, source)?;
-
- let mut contexts = HashMap::new();
- for (path, parsed) in &templates {
- contexts.insert(
- path.as_path(),
- Context::new(input.config, path, parsed.nodes())?,
- );
- }
-
- let ctx = &contexts[input.path.as_path()];
- let heritage = if !ctx.blocks.is_empty() || ctx.extends.is_some() {
- Some(Heritage::new(ctx, &contexts))
- } else {
- None
- };
-
- if input.print == Print::Ast || input.print == Print::All {
- eprintln!("{:?}", templates[input.path.as_path()].nodes());
- }
-
- let code = Generator::new(
- &input,
- &contexts,
- heritage.as_ref(),
- MapChain::new(),
- config.whitespace,
- )
- .build(&contexts[input.path.as_path()])?;
- if input.print == Print::Code || input.print == Print::All {
- eprintln!("{code}");
- }
- Ok(code)
-}
-
-struct Generator<'a> {
+pub(crate) struct Generator<'a> {
// The template input state: original struct AST and attributes
input: &'a TemplateInput<'a>,
// All contexts, keyed by the package-relative template path
@@ -96,7 +43,7 @@ struct Generator<'a> {
}
impl<'a> Generator<'a> {
- fn new<'n>(
+ pub(crate) fn new<'n>(
input: &'n TemplateInput<'_>,
contexts: &'n HashMap<&'n Path, Context<'n>>,
heritage: Option<&'n Heritage<'_>>,
@@ -119,7 +66,7 @@ impl<'a> Generator<'a> {
}
// Takes a Context and generates the relevant implementations.
- fn build(mut self, ctx: &'a Context<'_>) -> Result<String, CompileError> {
+ pub(crate) fn build(mut self, ctx: &'a Context<'_>) -> Result<String, CompileError> {
let mut buf = Buffer::new(0);
self.impl_template(ctx, &mut buf)?;
@@ -1792,7 +1739,7 @@ impl Buffer {
}
#[derive(Clone, Default)]
-struct LocalMeta {
+pub(crate) struct LocalMeta {
refs: Option<String>,
initialized: bool,
}
@@ -1816,7 +1763,7 @@ impl LocalMeta {
// type SetChain<'a, T> = MapChain<'a, T, ()>;
#[derive(Debug)]
-struct MapChain<'a, K, V>
+pub(crate) struct MapChain<'a, K, V>
where
K: cmp::Eq + hash::Hash,
{
@@ -1828,7 +1775,7 @@ impl<'a, K: 'a, V: 'a> MapChain<'a, K, V>
where
K: cmp::Eq + hash::Hash,
{
- fn new() -> MapChain<'a, K, V> {
+ pub(crate) fn new() -> MapChain<'a, K, V> {
MapChain {
parent: None,
scopes: vec![HashMap::new()],
diff --git a/askama_derive/src/lib.rs b/askama_derive/src/lib.rs
index 3b80635..dc8ca75 100644
--- a/askama_derive/src/lib.rs
+++ b/askama_derive/src/lib.rs
@@ -1,8 +1,8 @@
#![deny(elided_lifetimes_in_paths)]
#![deny(unreachable_pub)]
-use std::borrow::Cow;
use std::fmt;
+use std::{borrow::Cow, collections::HashMap};
use proc_macro::TokenStream;
use proc_macro2::Span;
@@ -10,19 +10,76 @@ use proc_macro2::Span;
use parser::ParseError;
mod config;
+use config::{get_template_source, read_config_file, Config};
mod generator;
+use generator::{Generator, MapChain};
mod heritage;
+use heritage::{Context, Heritage};
mod input;
+use input::{Print, Source, TemplateArgs, TemplateInput};
#[proc_macro_derive(Template, attributes(template))]
pub fn derive_template(input: TokenStream) -> TokenStream {
let ast = syn::parse::<syn::DeriveInput>(input).unwrap();
- match generator::build_template(&ast) {
+ match build_template(&ast) {
Ok(source) => source.parse().unwrap(),
Err(e) => e.into_compile_error(),
}
}
+/// Takes a `syn::DeriveInput` and generates source code for it
+///
+/// Reads the metadata from the `template()` attribute to get the template
+/// metadata, then fetches the source from the filesystem. The source is
+/// parsed, and the parse tree is fed to the code generator. Will print
+/// the parse tree and/or generated source according to the `print` key's
+/// value as passed to the `template()` attribute.
+pub(crate) fn build_template(ast: &syn::DeriveInput) -> Result<String, CompileError> {
+ let template_args = TemplateArgs::new(ast)?;
+ let config_toml = read_config_file(template_args.config_path.as_deref())?;
+ let config = Config::new(&config_toml, template_args.whitespace.as_ref())?;
+ let input = TemplateInput::new(ast, &config, template_args)?;
+ let source = match input.source {
+ Source::Source(ref s) => s.clone(),
+ Source::Path(_) => get_template_source(&input.path)?,
+ };
+
+ let mut templates = HashMap::new();
+ input.find_used_templates(&mut templates, source)?;
+
+ let mut contexts = HashMap::new();
+ for (path, parsed) in &templates {
+ contexts.insert(
+ path.as_path(),
+ Context::new(input.config, path, parsed.nodes())?,
+ );
+ }
+
+ let ctx = &contexts[input.path.as_path()];
+ let heritage = if !ctx.blocks.is_empty() || ctx.extends.is_some() {
+ Some(Heritage::new(ctx, &contexts))
+ } else {
+ None
+ };
+
+ if input.print == Print::Ast || input.print == Print::All {
+ eprintln!("{:?}", templates[input.path.as_path()].nodes());
+ }
+
+ let code = Generator::new(
+ &input,
+ &contexts,
+ heritage.as_ref(),
+ MapChain::new(),
+ config.whitespace,
+ )
+ .build(&contexts[input.path.as_path()])?;
+ if input.print == Print::Code || input.print == Print::All {
+ eprintln!("{code}");
+ }
+ Ok(code)
+}
+
#[derive(Debug, Clone)]
struct CompileError {
msg: Cow<'static, str>,
generated by cgit (git 2.34.1) at 2025-10-31 05:20:31 +0000