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Use Cow version of to_camel_case in codegen

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This commit is contained in:
Sam Rijs 2017-08-07 21:50:18 +10:00
parent a826b22ffb
commit 176ac2ee9e
3 changed files with 14 additions and 8 deletions
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4
juniper_codegen/src/derive_input_object.rs
View file

@ -1,3 +1,5 @@
use std::borrow::Cow;
use syn;
use syn::*;
use quote::Tokens;
@ -110,7 +112,7 @@ pub fn impl_input_object(ast: &syn::DeriveInput) -> Tokens {
let name = match field_attrs.name {
Some(ref name) => {
// Custom name specified.
name.to_string()
Cow::Borrowed(name.as_ref())
}
None => {
// Note: auto camel casing when no custom name specified.

4
juniper_codegen/src/derive_object.rs
View file

@ -1,3 +1,5 @@
use std::borrow::Cow;
use syn;
use syn::*;
use quote::Tokens;
@ -106,7 +108,7 @@ pub fn impl_object(ast: &syn::DeriveInput) -> Tokens {
let name = match field_attrs.name {
Some(ref name) => {
// Custom name specified.
name.to_string()
Cow::Borrowed(name.as_ref())
}
None => {
// Note: auto camel casing when no custom name specified.

14
juniper_codegen/src/util.rs
View file

@ -1,3 +1,5 @@
use std::borrow::Cow;
use syn::*;
pub fn get_graphl_attr(attrs: &Vec<Attribute>) -> Option<&Vec<NestedMetaItem>> {
@ -44,12 +46,12 @@ pub fn keyed_item_value(item: &NestedMetaItem, name: &str, must_be_string: bool)
// Note: duplicated from juniper crate!
#[doc(hidden)]
pub fn to_camel_case(s: &str) -> String {
let mut dest = String::new();
pub fn to_camel_case<'a>(s: &'a str) -> Cow<'a, str> {
let mut dest = Cow::Borrowed(s);
for (i, part) in s.split('_').enumerate() {
if i > 0 && part.len() == 1 {
dest.push_str(&part.to_uppercase());
dest += Cow::Owned(part.to_uppercase());
} else if i > 0 && part.len() > 1 {
let first = part.chars()
.next()
@ -58,10 +60,10 @@ pub fn to_camel_case(s: &str) -> String {
.collect::<String>();
let second = &part[1..];
dest.push_str(&first);
dest.push_str(second);
dest += Cow::Owned(first);
dest += second;
} else if i == 0 {
dest.push_str(part);
dest = Cow::Borrowed(part);
}
}