diff options
| -rw-r--r-- | crates/typst-eval/src/vm.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/crates/typst-eval/src/vm.rs b/crates/typst-eval/src/vm.rs index 1c8331b6..adf7dd76 100644 --- a/crates/typst-eval/src/vm.rs +++ b/crates/typst-eval/src/vm.rs @@ -1,4 +1,5 @@ use comemo::Tracked; +use typst_library::diag::warning; use typst_library::engine::Engine; use typst_library::foundations::{Context, IntoValue, Scopes, Value}; use typst_library::World; @@ -47,6 +48,16 @@ impl<'a> Vm<'a> { if self.inspected == Some(var.span()) { self.trace(value.clone()); } + // This will become an error in the parser if 'is' becomes a keyword. + if var.get() == "is" { + self.engine.sink.warn(warning!( + var.span(), + "`is` will likely become a keyword in future versions and will \ + not be allowed as an identifier"; + hint: "rename this variable to avoid future errors"; + hint: "try `is_` instead" + )); + } self.scopes.top.define_ident(var, value); } |