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Add support for field types with multiple PathSegment's

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This commit is contained in:
Dmitry Samoylov 2019-12-04 20:52:21 +07:00
parent bb36546d2e
commit ab03d32cfb
3 changed files with 84 additions and 41 deletions
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46
yaserde/tests/deserializer.rs
View File

@ -48,6 +48,52 @@ fn de_basic() {
);
}
#[test]
fn de_multiple_segments() {
mod other_mod {
use std::io::Read;
use yaserde::YaDeserialize;
#[derive(YaDeserialize, PartialEq, Debug, Default)]
pub struct Page {
pub number: i32,
pub text: std::string::String,
}
}
#[derive(YaDeserialize, PartialEq, Debug)]
#[yaserde(root = "book")]
pub struct Book {
author: std::string::String,
title: std::string::String,
page: other_mod::Page,
}
let content = r#"
<book>
<author>Antoine de Saint-Exupéry</author>
<title>Little prince</title>
<page>
<number>40</number>
<text>The Earth is not just an ordinary planet!</text>
</page>
</book>
"#;
convert_and_validate!(
content,
Book,
Book {
author: String::from("Antoine de Saint-Exupéry"),
title: String::from("Little prince"),
page: other_mod::Page {
number: 40,
text: String::from("The Earth is not just an ordinary planet!"),
},
}
);
}
#[test]
fn de_list_of_items() {
#[derive(YaDeserialize, PartialEq, Debug)]

16
yaserde_derive/src/de/expand_struct.rs
View File

@ -2,7 +2,7 @@ use attribute::*;
use de::build_default_value::build_default_value;
use field_type::*;
use proc_macro2::{Span, TokenStream};
use quote::TokenStreamExt;
use quote::{TokenStreamExt, ToTokens};
use std::collections::BTreeMap;
use syn::DataStruct;
use syn::Ident;
@ -249,9 +249,9 @@ pub fn parse(
build_declare_visitor(&quote! {f64}, &quote! {visit_f64}, &visitor_label)
}
Some(FieldType::FieldTypeStruct { struct_name }) => {
let struct_id = struct_name.to_string();
let struct_id : String = struct_name.segments.iter().map(|s| s.ident.to_string()).collect();
let struct_ident = Ident::new(
&format!("__Visitor_{}_{}", label_name, struct_name),
&format!("__Visitor_{}_{}", label_name, struct_id),
Span::call_site(),
);
@ -309,7 +309,7 @@ pub fn parse(
build_declare_visitor(&quote! {f64}, &quote! {visit_f64}, &visitor_label)
}
Some(&FieldType::FieldTypeStruct { ref struct_name }) => {
let struct_ident = Ident::new(&format!("{}", struct_name), Span::call_site());
let struct_ident = Ident::new(&format!("{}", struct_name.into_token_stream()), Span::call_site());
Some(quote! {
#[allow(non_snake_case, non_camel_case_types)]
struct #visitor_label;
@ -363,7 +363,7 @@ pub fn parse(
build_declare_visitor(&quote! {f64}, &quote! {visit_f64}, &visitor_label)
}
Some(&FieldType::FieldTypeStruct { ref struct_name }) => {
let struct_ident = Ident::new(&format!("{}", struct_name), Span::call_site());
let struct_ident = Ident::new(&format!("{}", struct_name.into_token_stream()), Span::call_site());
Some(quote! {
#[allow(non_snake_case, non_camel_case_types)]
struct #visitor_label;
@ -685,7 +685,7 @@ pub fn parse(
)
}
Some(&FieldType::FieldTypeStruct { ref struct_name }) => {
let struct_ident = Ident::new(&format!("{}", struct_name), Span::call_site());
let struct_ident = Ident::new(&format!("{}", struct_name.into_token_stream()), Span::call_site());
Some(quote! {
#label_name => {
reader.set_map_value();
@ -840,7 +840,7 @@ pub fn parse(
)
}
Some(&FieldType::FieldTypeStruct { ref struct_name }) => {
let struct_ident = Ident::new(&format!("{}", struct_name), Span::call_site());
let struct_ident = Ident::new(&format!("{}", struct_name.into_token_stream()), Span::call_site());
Some(quote! {
#label_name => {
reader.set_map_value();
@ -1064,7 +1064,7 @@ pub fn parse(
}
Some(FieldType::FieldTypeStruct { struct_name }) => {
let struct_ident = Ident::new(
&format!("__Visitor_{}_{}", label_name, struct_name),
&format!("__Visitor_{}_{}", label_name, struct_name.into_token_stream()),
Span::call_site(),
);

63
yaserde_derive/src/field_type.rs
View File

@ -17,48 +17,45 @@ pub enum FieldType {
FieldTypeF64,
FieldTypeOption { data_type: Box<FieldType> },
FieldTypeVec { data_type: Box<FieldType> },
FieldTypeStruct { struct_name: syn::Ident },
FieldTypeStruct { struct_name: syn::Path },
}
impl FieldType {
fn from_ident(t: &syn::PathSegment) -> Option<FieldType> {
match t.ident.to_string().as_str() {
"String" => Some(FieldType::FieldTypeString),
"bool" => Some(FieldType::FieldTypeBool),
"i8" => Some(FieldType::FieldTypeI8),
"u8" => Some(FieldType::FieldTypeU8),
"i16" => Some(FieldType::FieldTypeI16),
"u16" => Some(FieldType::FieldTypeU16),
"i32" => Some(FieldType::FieldTypeI32),
"u32" => Some(FieldType::FieldTypeU32),
"i64" => Some(FieldType::FieldTypeI64),
"u64" => Some(FieldType::FieldTypeU64),
"f32" => Some(FieldType::FieldTypeF32),
"f64" => Some(FieldType::FieldTypeF64),
"Option" => get_sub_type(t).map(|data_type| FieldType::FieldTypeOption {
data_type: Box::new(FieldType::from_ident(&data_type).unwrap()),
}),
"Vec" => get_sub_type(t).map(|data_type| FieldType::FieldTypeVec {
data_type: Box::new(FieldType::from_ident(&data_type).unwrap()),
}),
_struct_name => Some(FieldType::FieldTypeStruct {
struct_name: t.ident.clone(),
}),
fn from_ident(path: &syn::Path) -> Option<FieldType> {
match path.segments.last() {
Some(t) => {
match t.ident.to_string().as_str() {
"String" => Some(FieldType::FieldTypeString),
"bool" => Some(FieldType::FieldTypeBool),
"i8" => Some(FieldType::FieldTypeI8),
"u8" => Some(FieldType::FieldTypeU8),
"i16" => Some(FieldType::FieldTypeI16),
"u16" => Some(FieldType::FieldTypeU16),
"i32" => Some(FieldType::FieldTypeI32),
"u32" => Some(FieldType::FieldTypeU32),
"i64" => Some(FieldType::FieldTypeI64),
"u64" => Some(FieldType::FieldTypeU64),
"f32" => Some(FieldType::FieldTypeF32),
"f64" => Some(FieldType::FieldTypeF64),
"Option" => get_sub_type(t).map(|data_type| FieldType::FieldTypeOption {
data_type: Box::new(FieldType::from_ident(&syn::Path::from(data_type)).unwrap()),
}),
"Vec" => get_sub_type(t).map(|data_type| FieldType::FieldTypeVec {
data_type: Box::new(FieldType::from_ident(&syn::Path::from(data_type)).unwrap()),
}),
_ => Some(FieldType::FieldTypeStruct {
struct_name: path.clone(),
}),
}
},
_ => None,
}
}
}
pub fn get_field_type(field: &syn::Field) -> Option<FieldType> {
match field.ty {
Path(ref path) => {
if path.path.segments.len() != 1 {
return None;
}
match path.path.segments.first() {
Some(path_segment) => FieldType::from_ident(path_segment),
_ => None,
}
}
Path(ref path) => FieldType::from_ident(&path.path),
_ => None,
}
}