4e06e5d2ba
As pointed out by sterni in cl/6205, this is actually possible in
syntactically valid expressions like
{ ${12 + 13} = 12; }
Change-Id: Id8a1e3aceb551f288f9050c4eea563eb6572f1a7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6461
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
75 lines
1.7 KiB
Rust
75 lines
1.7 KiB
Rust
use std::fmt::Display;
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub enum ErrorKind {
|
|
DuplicateAttrsKey {
|
|
key: String,
|
|
},
|
|
|
|
/// Attempted to specify an invalid key type (e.g. integer) in a
|
|
/// dynamic attribute name.
|
|
InvalidAttributeName {
|
|
given: &'static str,
|
|
},
|
|
|
|
AttributeNotFound {
|
|
name: String,
|
|
},
|
|
|
|
TypeError {
|
|
expected: &'static str,
|
|
actual: &'static str,
|
|
},
|
|
|
|
Incomparable {
|
|
lhs: &'static str,
|
|
rhs: &'static str,
|
|
},
|
|
|
|
/// Resolving a user-supplied path literal failed in some way.
|
|
PathResolution(String),
|
|
|
|
/// Dynamic keys are not allowed in let.
|
|
DynamicKeyInLet(rnix::SyntaxNode),
|
|
|
|
/// Unknown variable in statically known scope.
|
|
UnknownStaticVariable,
|
|
|
|
/// Unknown variable in dynamic scope (with, rec, ...).
|
|
UnknownDynamicVariable(String),
|
|
|
|
/// User is defining the same variable twice at the same depth.
|
|
VariableAlreadyDefined(String),
|
|
|
|
/// Attempt to call something that is not callable.
|
|
NotCallable,
|
|
|
|
/// Infinite recursion encountered while forcing thunks.
|
|
InfiniteRecursion,
|
|
|
|
ParseErrors(Vec<rnix::parser::ParseError>),
|
|
|
|
AssertionFailed,
|
|
|
|
/// These are user-generated errors through builtins.
|
|
Throw(String),
|
|
Abort(String),
|
|
|
|
/// An error occured while forcing a thunk, and needs to be
|
|
/// chained up.
|
|
ThunkForce(Box<Error>),
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub struct Error {
|
|
pub kind: ErrorKind,
|
|
pub span: codemap::Span,
|
|
}
|
|
|
|
impl Display for Error {
|
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
writeln!(f, "{:?}", self.kind)
|
|
}
|
|
}
|
|
|
|
pub type EvalResult<T> = Result<T, Error>;
|