From aeee8796d8cb3edbd943e953df2df04092a146fb Mon Sep 17 00:00:00 2001 From: Domenic Denicola Date: Tue, 7 Jan 2020 12:28:40 -0500 Subject: [PATCH] Consult .name instead of [[Prototype]] for Error serialization Fixes #5140. --- source | 38 +++++++++++--------------------------- 1 file changed, 11 insertions(+), 27 deletions(-) diff --git a/source b/source index f8270f388b5..723fbd4c0ea 100644 --- a/source +++ b/source @@ -8401,27 +8401,11 @@ interface DOMStringList { too -->
    -

  1. Let prototype be "Error".

    2. +

  2. Let name be ? Get(value, + "name").

    3. -

  3. Let valueProto be ! value.[[GetPrototypeOf]]().

    4. - -

  4. If valueProto is %EvalErrorPrototype%, then set - prototype to "EvalError".

    5. - -

  5. If valueProto is %RangeErrorPrototype%, then set - prototype to "RangeError".

    6. - -

  6. If valueProto is %ReferenceErrorPrototype%, then set - prototype to "ReferenceError".

    7. - -

  7. If valueProto is %SyntaxErrorPrototype%, then set - prototype to "SyntaxError".

    8. - -

  8. If valueProto is %TypeErrorPrototype%, then set - prototype to "TypeError".

    9. - -

  9. If valueProto is %URIErrorPrototype%, then set - prototype to "URIError".

    10. +

  10. If name is not one of "Error", "EvalError", "RangeError", "ReferenceError", + "SyntaxError", "TypeError", or "URIError", then set name to "Error".

  11. Let valueMessageDesc be ? value.[[GetOwnProperty]]("message").

    12. @@ -8430,7 +8414,7 @@ interface DOMStringList { IsDataDescriptor(valueMessageDesc) is false, and ? ToString(valueMessageDesc.[[Value]]) otherwise.

    -

  12. Set serialized to { [[Type]]: "Error", [[Prototype]]: prototype, +

  13. Set serialized to { [[Type]]: "Error", [[Name]]: name, [[Message]]: message }.

  14. @@ -8859,22 +8843,22 @@ o.myself = o;

    1. Let prototype be %ErrorPrototype%.

      2. -

    2. If serialized.[[Prototype]] is "EvalError", then set prototype to +

    3. If serialized.[[Name]] is "EvalError", then set prototype to %EvalErrorPrototype%.

      4. -

    4. If serialized.[[Prototype]] is "RangeError", then set prototype +

    5. If serialized.[[Name]] is "RangeError", then set prototype to %RangeErrorPrototype%.

      6. -

    6. If serialized.[[Prototype]] is "ReferenceError", then set +

    7. If serialized.[[Name]] is "ReferenceError", then set prototype to %ReferenceErrorPrototype%.

      8. -

    8. If serialized.[[Prototype]] is "SyntaxError", then set prototype +

    9. If serialized.[[Name]] is "SyntaxError", then set prototype to %SyntaxErrorPrototype%.

      10. -

    10. If serialized.[[Prototype]] is "TypeError", then set prototype to +

    11. If serialized.[[Name]] is "TypeError", then set prototype to %TypeErrorPrototype%.

      12. -

    12. If serialized.[[Prototype]] is "URIError", then set prototype to +

    13. If serialized.[[Name]] is "URIError", then set prototype to %URIErrorPrototype%.

    14. Let message be serialized.[[Message]].