diff options
Diffstat (limited to 'askama_derive')
| -rw-r--r-- | askama_derive/src/generator.rs | 131 | ||||
| -rw-r--r-- | askama_derive/src/input.rs | 137 |
2 files changed, 134 insertions, 134 deletions
diff --git a/askama_derive/src/generator.rs b/askama_derive/src/generator.rs index cb4b102..3374161 100644 --- a/askama_derive/src/generator.rs +++ b/askama_derive/src/generator.rs @@ -1,14 +1,13 @@ use crate::config::{get_template_source, read_config_file, Config, WhitespaceHandling}; use crate::heritage::{Context, Heritage}; -use crate::input::{Print, Source, TemplateInput}; +use crate::input::{Print, Source, TemplateArgs, TemplateInput}; use crate::CompileError; use parser::node::{ Call, Comment, CondTest, If, Include, Let, Lit, Loop, Match, Target, Whitespace, Ws, }; use parser::{Expr, Node, Parsed}; -use quote::{quote, ToTokens}; -use syn::punctuated::Punctuated; +use quote::quote; use std::collections::hash_map::{Entry, HashMap}; use std::path::{Path, PathBuf}; @@ -67,132 +66,6 @@ pub(crate) fn build_template(ast: &syn::DeriveInput) -> Result<String, CompileEr Ok(code) } -#[derive(Default)] -pub(crate) struct TemplateArgs { - pub(crate) source: Option<Source>, - pub(crate) print: Print, - pub(crate) escaping: Option<String>, - pub(crate) ext: Option<String>, - pub(crate) syntax: Option<String>, - pub(crate) config_path: Option<String>, - pub(crate) whitespace: Option<String>, -} - -impl TemplateArgs { - fn new(ast: &'_ syn::DeriveInput) -> Result<Self, CompileError> { - // Check that an attribute called `template()` exists once and that it is - // the proper type (list). - let mut template_args = None; - for attr in &ast.attrs { - if !attr.path().is_ident("template") { - continue; - } - - match attr.parse_args_with(Punctuated::<syn::Meta, syn::Token![,]>::parse_terminated) { - Ok(args) if template_args.is_none() => template_args = Some(args), - Ok(_) => return Err("duplicated 'template' attribute".into()), - Err(e) => return Err(format!("unable to parse template arguments: {e}").into()), - }; - } - - let template_args = - template_args.ok_or_else(|| CompileError::from("no attribute 'template' found"))?; - - let mut args = Self::default(); - // Loop over the meta attributes and find everything that we - // understand. Return a CompileError if something is not right. - // `source` contains an enum that can represent `path` or `source`. - for item in template_args { - let pair = match item { - syn::Meta::NameValue(pair) => pair, - _ => { - return Err(format!( - "unsupported attribute argument {:?}", - item.to_token_stream() - ) - .into()) - } - }; - - let ident = match pair.path.get_ident() { - Some(ident) => ident, - None => unreachable!("not possible in syn::Meta::NameValue(…)"), - }; - - let value = match pair.value { - syn::Expr::Lit(lit) => lit, - syn::Expr::Group(group) => match *group.expr { - syn::Expr::Lit(lit) => lit, - _ => { - return Err(format!("unsupported argument value type for {ident:?}").into()) - } - }, - _ => return Err(format!("unsupported argument value type for {ident:?}").into()), - }; - - if ident == "path" { - if let syn::Lit::Str(s) = value.lit { - if args.source.is_some() { - return Err("must specify 'source' or 'path', not both".into()); - } - args.source = Some(Source::Path(s.value())); - } else { - return Err("template path must be string literal".into()); - } - } else if ident == "source" { - if let syn::Lit::Str(s) = value.lit { - if args.source.is_some() { - return Err("must specify 'source' or 'path', not both".into()); - } - args.source = Some(Source::Source(s.value())); - } else { - return Err("template source must be string literal".into()); - } - } else if ident == "print" { - if let syn::Lit::Str(s) = value.lit { - args.print = s.value().parse()?; - } else { - return Err("print value must be string literal".into()); - } - } else if ident == "escape" { - if let syn::Lit::Str(s) = value.lit { - args.escaping = Some(s.value()); - } else { - return Err("escape value must be string literal".into()); - } - } else if ident == "ext" { - if let syn::Lit::Str(s) = value.lit { - args.ext = Some(s.value()); - } else { - return Err("ext value must be string literal".into()); - } - } else if ident == "syntax" { - if let syn::Lit::Str(s) = value.lit { - args.syntax = Some(s.value()) - } else { - return Err("syntax value must be string literal".into()); - } - } else if ident == "config" { - if let syn::Lit::Str(s) = value.lit { - args.config_path = Some(s.value()) - } else { - return Err("config value must be string literal".into()); - } - } else if ident == "whitespace" { - if let syn::Lit::Str(s) = value.lit { - args.whitespace = Some(s.value()) - } else { - return Err("whitespace value must be string literal".into()); - } - } else { - return Err(format!("unsupported attribute key {ident:?} found").into()); - } - } - - Ok(args) - } -} - fn find_used_templates( input: &TemplateInput<'_>, map: &mut HashMap<PathBuf, Parsed>, diff --git a/askama_derive/src/input.rs b/askama_derive/src/input.rs index d4e8ad9..5977058 100644 --- a/askama_derive/src/input.rs +++ b/askama_derive/src/input.rs @@ -1,12 +1,13 @@ -use crate::config::Config; -use crate::generator::TemplateArgs; -use crate::CompileError; -use parser::Syntax; - use std::path::{Path, PathBuf}; use std::str::FromStr; use mime::Mime; +use quote::ToTokens; +use syn::punctuated::Punctuated; + +use crate::config::Config; +use crate::CompileError; +use parser::Syntax; pub(crate) struct TemplateInput<'a> { pub(crate) ast: &'a syn::DeriveInput, @@ -105,6 +106,132 @@ impl TemplateInput<'_> { } } +#[derive(Default)] +pub(crate) struct TemplateArgs { + pub(crate) source: Option<Source>, + pub(crate) print: Print, + pub(crate) escaping: Option<String>, + pub(crate) ext: Option<String>, + pub(crate) syntax: Option<String>, + pub(crate) config_path: Option<String>, + pub(crate) whitespace: Option<String>, +} + +impl TemplateArgs { + pub(crate) fn new(ast: &'_ syn::DeriveInput) -> Result<Self, CompileError> { + // Check that an attribute called `template()` exists once and that it is + // the proper type (list). + let mut template_args = None; + for attr in &ast.attrs { + if !attr.path().is_ident("template") { + continue; + } + + match attr.parse_args_with(Punctuated::<syn::Meta, syn::Token![,]>::parse_terminated) { + Ok(args) if template_args.is_none() => template_args = Some(args), + Ok(_) => return Err("duplicated 'template' attribute".into()), + Err(e) => return Err(format!("unable to parse template arguments: {e}").into()), + }; + } + + let template_args = + template_args.ok_or_else(|| CompileError::from("no attribute 'template' found"))?; + + let mut args = Self::default(); + // Loop over the meta attributes and find everything that we + // understand. Return a CompileError if something is not right. + // `source` contains an enum that can represent `path` or `source`. + for item in template_args { + let pair = match item { + syn::Meta::NameValue(pair) => pair, + _ => { + return Err(format!( + "unsupported attribute argument {:?}", + item.to_token_stream() + ) + .into()) + } + }; + + let ident = match pair.path.get_ident() { + Some(ident) => ident, + None => unreachable!("not possible in syn::Meta::NameValue(…)"), + }; + + let value = match pair.value { + syn::Expr::Lit(lit) => lit, + syn::Expr::Group(group) => match *group.expr { + syn::Expr::Lit(lit) => lit, + _ => { + return Err(format!("unsupported argument value type for {ident:?}").into()) + } + }, + _ => return Err(format!("unsupported argument value type for {ident:?}").into()), + }; + + if ident == "path" { + if let syn::Lit::Str(s) = value.lit { + if args.source.is_some() { + return Err("must specify 'source' or 'path', not both".into()); + } + args.source = Some(Source::Path(s.value())); + } else { + return Err("template path must be string literal".into()); + } + } else if ident == "source" { + if let syn::Lit::Str(s) = value.lit { + if args.source.is_some() { + return Err("must specify 'source' or 'path', not both".into()); + } + args.source = Some(Source::Source(s.value())); + } else { + return Err("template source must be string literal".into()); + } + } else if ident == "print" { + if let syn::Lit::Str(s) = value.lit { + args.print = s.value().parse()?; + } else { + return Err("print value must be string literal".into()); + } + } else if ident == "escape" { + if let syn::Lit::Str(s) = value.lit { + args.escaping = Some(s.value()); + } else { + return Err("escape value must be string literal".into()); + } + } else if ident == "ext" { + if let syn::Lit::Str(s) = value.lit { + args.ext = Some(s.value()); + } else { + return Err("ext value must be string literal".into()); + } + } else if ident == "syntax" { + if let syn::Lit::Str(s) = value.lit { + args.syntax = Some(s.value()) + } else { + return Err("syntax value must be string literal".into()); + } + } else if ident == "config" { + if let syn::Lit::Str(s) = value.lit { + args.config_path = Some(s.value()) + } else { + return Err("config value must be string literal".into()); + } + } else if ident == "whitespace" { + if let syn::Lit::Str(s) = value.lit { + args.whitespace = Some(s.value()) + } else { + return Err("whitespace value must be string literal".into()); + } + } else { + return Err(format!("unsupported attribute key {ident:?} found").into()); + } + } + + Ok(args) + } +} + #[inline] fn ext_default_to_path<'a>(ext: Option<&'a str>, path: &'a Path) -> Option<&'a str> { ext.or_else(|| extension(path)) |