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scopes.rs
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scopes.rs
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mod util;
use oxc_semantic::ScopeFlags;
pub use util::{Expect, SemanticTester};
#[test]
fn test_top_level_strict() {
// Module with top-level "use strict"
SemanticTester::js(
r#"
"use strict";
function foo() {
return 1
}
"#,
)
.has_root_symbol("foo")
.is_in_scope(ScopeFlags::Top | ScopeFlags::StrictMode)
// .expect(expect_strict)
.test();
// Module without top-level "use strict"
SemanticTester::js(
r"
function foo() {
return 1
}
",
)
.has_root_symbol("foo")
.is_in_scope(ScopeFlags::Top | ScopeFlags::StrictMode)
.test();
// Script with top-level "use strict"
SemanticTester::js(
r#"
"use strict";
function foo() {
return 1
}
"#,
)
.with_module(false)
.has_root_symbol("foo")
.is_in_scope(ScopeFlags::Top | ScopeFlags::StrictMode)
.test();
// Script without top-level "use strict"
SemanticTester::js(
r"
function foo() {
return 1
}
",
)
.with_module(false)
.has_root_symbol("foo")
.is_in_scope(ScopeFlags::Top)
.is_not_in_scope(ScopeFlags::StrictMode)
.test();
}
#[test]
fn test_function_level_strict() {
let tester = SemanticTester::js(
r#"
function foo() {
"use strict";
let x = 1;
return x
}
"#,
)
.with_module(false);
tester.has_some_symbol("x")
.is_in_scope(ScopeFlags::StrictMode | ScopeFlags::Function)
.expect(|(semantic, symbol_id)| -> Result<(), &'static str> {
let scope_id = semantic.symbol_scope(symbol_id);
let Some(parent_scope_id) = semantic.scopes().get_parent_id(scope_id) else {
return Err("Expected x's scope to have a parent")
};
let parent_flags = semantic.scopes().get_flags(parent_scope_id);
if parent_flags.contains(ScopeFlags::Top) {
Ok(())
} else {
Err("Expected x to be in a top-level function declaration, but its parent scope has flags {parent_flags:?}")
}
})
.test();
tester.has_some_symbol("foo").is_not_in_scope(ScopeFlags::StrictMode).test();
}
#[test]
fn test_switch_case() {
SemanticTester::js(
"
const foo = 1;
switch (foo) {
case 1:
const foo = 2;
}
",
)
.has_root_symbol("foo")
.has_number_of_references(1)
.test();
}