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Implement MarcoDB Option and Enum Option Referencing

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This commit is contained in:
Samuel Lorch 2024-02-11 21:39:18 +01:00
parent e3ab77008a
commit 2d23b26227
1 changed files with 90 additions and 12 deletions
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84
src/definitions/macro_db.rs
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@ -74,6 +74,11 @@ macro_rules! macro_db {
path: stringify!(config.$($path_referencing).+).to_string(),
}));
};
(O ()) => {
/*
TODO
*/
};
(M ()) => {
config.$($path_referencing).+.iter().filter(|e| e.$field_name.contains(&self.name)).for_each(|e| by.push(ReferencedBy{
name: e.name.clone(),
@ -99,6 +104,16 @@ macro_rules! macro_db {
}
*/
};
(EO
($enum_name:ident,
$enum_type:ident,
$enum_variant:ident,
$fn_name:ident )
) => {
/*
TODO
*/
};
(EM
($enum_name:ident,
$enum_type:ident,
@ -157,6 +172,32 @@ macro_rules! macro_db_link {
}
}
};
( O,
$field_name:ident,
$thing_referencing:ty,
$thing_referenced:ty,
$( $path_referenced:ident ).+
()
) => {
impl $thing_referencing {
#[allow(dead_code)]
pub fn $field_name(&self, config: Config) -> Option<$thing_referenced> {
match self.$field_name.clone() {
None => None,
Some(s) => {
let index = config.$($path_referenced).+.iter().position(|e| *e.name == s);
match index {
Some(i) => Some(config.$($path_referenced).+[i].clone()),
// This is fine since the config always has to validated before commiting
None => panic!("Referenced Thing: '{:?}' does not exist ", self.$field_name),
}
}
}
}
}
};
( M,
$field_name:ident,
$thing_referencing:ty,
@ -194,13 +235,11 @@ macro_rules! macro_db_link {
impl $enum_type {
#[allow(dead_code)]
pub fn $fn_name(&self, config: Config) -> $thing_referenced {
if let $enum_type::$enum_variant { $field_name, .. } = self.clone() {
let index = config.$($path_referenced).+.iter().position(
|e| {
if let $enum_type::$enum_variant { $field_name, .. } = self.clone() {
return *e.name == $field_name;
}
return false;
}
);
match index {
@ -208,7 +247,46 @@ macro_rules! macro_db_link {
// This is fine since the config always has to validated before commiting
None => panic!("Referenced Thing: does not exist (from Enum)"),
}
} else {
panic!("Called Referenced for wrong Enum Variant")
}
}
}
};
( EO,
$field_name:ident,
$thing_referencing:ty,
$thing_referenced:ty,
$( $path_referenced:ident ).+
($enum_name:ident,
$enum_type:ident,
$enum_variant:ident,
$fn_name:ident )
) => {
// Unfortunetly Enum Variants are not Types, which is why we can't impl on the Variant and need seperate function names (since multiple variant could have the same field name)
impl $enum_type {
#[allow(dead_code)]
pub fn $fn_name(&self, config: Config) -> Option<$thing_referenced> {
if let $enum_type::$enum_variant { $field_name, .. } = self.clone() {
match $field_name {
None => None,
Some(f) => {
let index = config.$($path_referenced).+.iter().position(
|e| {
return *e.name == f;
}
);
match index {
Some(i) => Some(config.$($path_referenced).+[i].clone()),
// This is fine since the config always has to validated before commiting
None => panic!("Referenced Thing: does not exist (from Enum)"),
}
}
}
} else {
panic!("Called Referenced for wrong Enum Variant")
}
}
}
};