kjuulh/rhai
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Run var def filter during parsing.

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This commit is contained in:
Stephen Chung
2022-02-13 18:46:25 +08:00
parent 664e3d31e5
commit 5bb6ce835f
9 changed files with 115 additions and 49 deletions
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16
tests/var_scope.rs
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@@ -1,4 +1,4 @@
use rhai::{Engine, EvalAltResult, Position, Scope, INT};
use rhai::{Engine, EvalAltResult, ParseErrorType, Position, Scope, INT};
#[test]
fn test_var_scope() -> Result<(), Box<EvalAltResult>> {
@@ -125,7 +125,10 @@ fn test_var_resolver() -> Result<(), Box<EvalAltResult>> {
fn test_var_def_filter() -> Result<(), Box<EvalAltResult>> {
let mut engine = Engine::new();
engine.on_def_var(|name, _, scope_level, _, _| match (name, scope_level) {
let ast = engine.compile("let x = 42;")?;
engine.run_ast(&ast)?;
engine.on_def_var(|name, _, _, scope_level, _, _| match (name, scope_level) {
("x", 0 | 1) => Ok(false),
_ => Ok(true),
});
@@ -135,7 +138,14 @@ fn test_var_def_filter() -> Result<(), Box<EvalAltResult>> {
124
);
assert!(engine.run("let x = 42;").is_err());
assert!(matches!(
*engine.compile("let x = 42;").expect_err("should error").0,
ParseErrorType::ForbiddenVariable(s) if s == "x"
));
assert!(matches!(
*engine.run_ast(&ast).expect_err("should err"),
EvalAltResult::ErrorForbiddenVariable(s, _) if s == "x"
));
assert!(engine.run("const x = 42;").is_err());
assert!(engine.run("let y = 42; { let x = y + 1; }").is_err());
assert!(engine.run("let y = 42; { let x = y + 1; }").is_err());