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Add some utility methods to Value

This commit is contained in:
SeanOMik 2024-02-10 22:55:05 -05:00
parent 845ddd4f80
commit d4130c1995
Signed by: SeanOMik
GPG Key ID: FEC9E2FC15235964
2 changed files with 58 additions and 18 deletions
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0
src/userdata/convert.rs Executable file
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76
src/value.rs
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@ -36,27 +36,17 @@ impl<'a> Value<'a> {
}
}
pub fn as_userdata(&self) -> crate::Result<&AnyUserdata<'a>> {
pub fn as_number(&self) -> crate::Result<f64> {
match self {
Value::Userdata(ud) => Ok(ud),
Value::Number(v) => Ok(*v),
_ => {
Err(crate::Error::UnexpectedType("Userdata".to_string(), self.type_name().to_string()))
}
}
}
/// Consumes self, and attempts to get `AnyUserdata`.
///
/// Returns an error if this value is not userdata
pub fn into_userdata(self) -> crate::Result<AnyUserdata<'a>> {
match self {
Value::Userdata(ud) => Ok(ud),
_ => {
Err(crate::Error::UnexpectedType("Userdata".to_string(), self.type_name().to_string()))
Err(crate::Error::UnexpectedType("Number".to_string(), self.type_name().to_string()))
}
}
}
/// If `self` is an instance of Value::String, returns a borrow to it. If it is not then
/// an `UnexpectedType` error is returned.
pub fn as_string(&self) -> crate::Result<&String> {
match self {
Value::String(s) => Ok(s),
@ -66,6 +56,41 @@ impl<'a> Value<'a> {
}
}
/// If `self` is an instance of Value::Function, returns a borrow to it. If it is not then
/// an `UnexpectedType` error is returned.
pub fn as_function(&self) -> crate::Result<Function> {
match self {
Value::Function(v) => Ok(v.clone()),
_ => {
Err(crate::Error::UnexpectedType("Table".to_string(), self.type_name().to_string()))
}
}
}
/// If `self` is an instance of Value::Table, returns a borrow to it. If it is not then
/// an `UnexpectedType` error is returned.
pub fn as_table(&self) -> crate::Result<Table> {
match self {
Value::Table(v) => Ok(v.clone()),
_ => {
Err(crate::Error::UnexpectedType("Table".to_string(), self.type_name().to_string()))
}
}
}
/// If `self` is an instance of Value::Userdata, returns a borrow to it. If it is not then
/// an `UnexpectedType` error is returned.
pub fn as_userdata(&self) -> crate::Result<AnyUserdata<'a>> {
match self {
Value::Userdata(ud) => Ok(ud.clone()),
_ => {
Err(crate::Error::UnexpectedType("Userdata".to_string(), self.type_name().to_string()))
}
}
}
/// If `self` is an instance of Value::String, the string is returned. If it is not then
/// an `UnexpectedType` error is returned.
pub fn into_string(self) -> crate::Result<String> {
match self {
Value::String(s) => Ok(s),
@ -75,6 +100,19 @@ impl<'a> Value<'a> {
}
}
/// If `self` is an instance of Value::Function, the function is returned. If it is not then
/// an `UnexpectedType` error is returned.
pub fn into_function(self) -> crate::Result<Function<'a>> {
match self {
Value::Function(v) => Ok(v),
_ => {
Err(crate::Error::UnexpectedType("Function".to_string(), self.type_name().to_string()))
}
}
}
/// If `self` is an instance of Value::Table, the table is returned. If it is not then
/// an `UnexpectedType` error is returned.
pub fn into_table(self) -> crate::Result<Table<'a>> {
match self {
Value::Table(v) => Ok(v),
@ -84,11 +122,13 @@ impl<'a> Value<'a> {
}
}
pub fn into_function(self) -> crate::Result<Function<'a>> {
/// If `self` is an instance of Value::Userdata, the userdata is returned. If it is not then
/// an `UnexpectedType` error is returned.
pub fn into_userdata(self) -> crate::Result<AnyUserdata<'a>> {
match self {
Value::Function(v) => Ok(v),
Value::Userdata(ud) => Ok(ud),
_ => {
Err(crate::Error::UnexpectedType("Function".to_string(), self.type_name().to_string()))
Err(crate::Error::UnexpectedType("Userdata".to_string(), self.type_name().to_string()))
}
}
}