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Parse serde(transparent) container attribute

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This commit is contained in:
David Tolnay 2018-05-20 13:35:25 -07:00
parent 320897679b
commit a64aaeeb3b
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1 changed files with 12 additions and 0 deletions
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12
serde_derive/src/internals/attr.rs
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@ -105,6 +105,7 @@ impl Name {
/// Represents container (e.g. struct) attribute information
pub struct Container {
name: Name,
transparent: bool,
deny_unknown_fields: bool,
default: Default,
rename_all: RenameRule,
@ -181,6 +182,7 @@ impl Container {
pub fn from_ast(cx: &Ctxt, item: &syn::DeriveInput) -> Self {
let mut ser_name = Attr::none(cx, "rename");
let mut de_name = Attr::none(cx, "rename");
let mut transparent = BoolAttr::none(cx, "transparent");
let mut deny_unknown_fields = BoolAttr::none(cx, "deny_unknown_fields");
let mut default = Attr::none(cx, "default");
let mut rename_all = Attr::none(cx, "rename_all");
@ -228,6 +230,11 @@ impl Container {
}
}
// Parse `#[serde(transparent)]`
Meta(Word(word)) if word == "transparent" => {
transparent.set_true();
}
// Parse `#[serde(deny_unknown_fields)]`
Meta(Word(ref word)) if word == "deny_unknown_fields" => {
deny_unknown_fields.set_true();
@ -376,6 +383,7 @@ impl Container {
serialize: ser_name.get().unwrap_or_else(|| item.ident.to_string()),
deserialize: de_name.get().unwrap_or_else(|| item.ident.to_string()),
},
transparent: transparent.get(),
deny_unknown_fields: deny_unknown_fields.get(),
default: default.get().unwrap_or(Default::None),
rename_all: rename_all.get().unwrap_or(RenameRule::None),
@ -398,6 +406,10 @@ impl Container {
&self.rename_all
}
pub fn transparent(&self) -> bool {
self.transparent
}
pub fn deny_unknown_fields(&self) -> bool {
self.deny_unknown_fields
}