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Improve arguments object (#4145)

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- Enhancement: Arguments object properties are now lazy instantiated
 - Bugfix: Mapped arguments object instantiated properties cannot be lcached
 - Bugfix: Mapped arguments should be constructed even if 0 formal parameters or arguments are provided
 - Update: remove 'caller' property of unmapped arguments object

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2020-09-28 15:57:58 +02:00
committed by GitHub
parent 32de38198a
commit 75385a6045
14 changed files with 943 additions and 591 deletions
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tests/test262-esnext-excludelist.xml
-18
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@@ -1583,7 +1583,6 @@
<test id="built-ins/Symbol/unscopables/cross-realm.js"><reason></reason></test>
<test id="built-ins/ThrowTypeError/distinct-cross-realm.js"><reason></reason></test>
<test id="built-ins/ThrowTypeError/name.js"><reason></reason></test>
<test id="built-ins/ThrowTypeError/unique-per-realm-non-simple.js"><reason></reason></test>
<test id="built-ins/TypedArray/from/arylk-get-length-error.js"><reason></reason></test>
<test id="built-ins/TypedArray/from/arylk-to-length-error.js"><reason></reason></test>
<test id="built-ins/TypedArray/from/iter-access-error.js"><reason></reason></test>
@@ -2867,23 +2866,6 @@
<test id="intl402/supportedLocalesOf-unicode-extensions-ignored.js"><reason></reason></test>
<test id="language/arguments-object/10.6-13-a-2.js"><reason></reason></test>
<test id="language/arguments-object/10.6-13-a-3.js"><reason></reason></test>
<test id="language/arguments-object/arguments-caller.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-2.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-4.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-delete-2.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-delete-4.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-nonwritable-3.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-nonwritable-4.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-strict-delete-2.js"><reason></reason></test>
<test id="language/arguments-object/mapped/mapped-arguments-nonconfigurable-strict-delete-4.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-descriptors-basic.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-descriptors-set-value-by-arguments.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-descriptors-set-value-with-define-property.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-descriptors-with-param-assign.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-nonenumerable-nonwritable-descriptors-set-by-arguments.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-nonenumerable-nonwritable-descriptors-set-by-param.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-nonwritable-descriptors-set-by-arguments.js"><reason></reason></test>
<test id="language/arguments-object/mapped/nonconfigurable-nonwritable-descriptors-set-by-param.js"><reason></reason></test>
<test id="language/block-scope/syntax/redeclaration/async-function-name-redeclaration-attempt-with-async-function.js"><reason></reason></test>
<test id="language/block-scope/syntax/redeclaration/async-function-name-redeclaration-attempt-with-async-generator.js"><reason></reason></test>
<test id="language/block-scope/syntax/redeclaration/async-function-name-redeclaration-attempt-with-function.js"><reason></reason></test>