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Null-check the result of JS_GetStringCharsAndLength.

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This commit is contained in:
Ms2ger 2015-03-13 21:04:33 +01:00
parent 0593d77b93
commit 2345f5461b
1 changed files with 2 additions and 0 deletions
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2
components/script/dom/bindings/conversions.rs
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@ -307,6 +307,7 @@ pub fn jsstring_to_str(cx: *mut JSContext, s: *mut JSString) -> DOMString {
unsafe {
let mut length = 0;
let chars = JS_GetStringCharsAndLength(cx, s, &mut length);
assert!(!chars.is_null());
let char_vec = slice::from_raw_parts(chars, length as usize);
String::from_utf16(char_vec).unwrap()
}
@ -358,6 +359,7 @@ impl FromJSValConvertible for USVString {
unsafe {
let mut length = 0;
let chars = JS_GetStringCharsAndLength(cx, jsstr, &mut length);
assert!(!chars.is_null());
let char_vec = slice::from_raw_parts(chars, length as usize);
Ok(USVString(String::from_utf16_lossy(char_vec)))
}