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Add a lowercase case convention

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David Tolnay 2017-04-14 22:09:46 -07:00
parent 54bbf81dfc
commit 13463e25c2
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1 changed files with 11 additions and 6 deletions
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17
serde_derive_internals/src/case.rs
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@ -15,6 +15,8 @@ use self::RenameRule::*;
pub enum RenameRule {
/// Don't apply a default rename rule.
None,
/// Rename direct children to "lowercase" style.
LowerCase,
/// Rename direct children to "PascalCase" style, as typically used for enum variants.
PascalCase,
/// Rename direct children to "camelCase" style.
@ -31,6 +33,7 @@ impl RenameRule {
pub fn apply_to_variant(&self, variant: &str) -> String {
match *self {
None | PascalCase => variant.to_owned(),
LowerCase => variant.to_ascii_lowercase(),
CamelCase => variant[..1].to_ascii_lowercase() + &variant[1..],
SnakeCase => {
let mut snake = String::new();
@ -49,7 +52,7 @@ impl RenameRule {
pub fn apply_to_field(&self, field: &str) -> String {
match *self {
None | SnakeCase => field.to_owned(),
None | LowerCase | SnakeCase => field.to_owned(),
PascalCase => {
let mut pascal = String::new();
let mut capitalize = true;
@ -80,6 +83,7 @@ impl FromStr for RenameRule {
fn from_str(rename_all_str: &str) -> Result<Self, Self::Err> {
match rename_all_str {
"lowercase" => Ok(LowerCase),
"PascalCase" => Ok(PascalCase),
"camelCase" => Ok(CamelCase),
"snake_case" => Ok(SnakeCase),
@ -92,12 +96,13 @@ impl FromStr for RenameRule {
#[test]
fn rename_variants() {
for &(original, camel, snake, screaming, kebab) in
&[("Outcome", "outcome", "outcome", "OUTCOME", "outcome"),
("VeryTasty", "veryTasty", "very_tasty", "VERY_TASTY", "very-tasty"),
("A", "a", "a", "A", "a"),
("Z42", "z42", "z42", "Z42", "z42")] {
for &(original, lower, camel, snake, screaming, kebab) in
&[("Outcome", "outcome", "outcome", "outcome", "OUTCOME", "outcome"),
("VeryTasty", "verytasty", "veryTasty", "very_tasty", "VERY_TASTY", "very-tasty"),
("A", "a", "a", "a", "A", "a"),
("Z42", "z42", "z42", "z42", "Z42", "z42")] {
assert_eq!(None.apply_to_variant(original), original);
assert_eq!(LowerCase.apply_to_variant(original), lower);
assert_eq!(PascalCase.apply_to_variant(original), original);
assert_eq!(CamelCase.apply_to_variant(original), camel);
assert_eq!(SnakeCase.apply_to_variant(original), snake);