tor-browser

The Tor Browser
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global-block-decl-eval-global-skip-early-err-try.js (1721B)


      1 // This file was procedurally generated from the following sources:
      2 // - src/annex-b-fns/eval-global-skip-early-err-try.case
      3 // - src/annex-b-fns/eval-global/direct-block.template
      4 /*---
      5 description: Extension is not observed when creation of variable binding would produce an early error (try statement) (Block statement in eval code containing a function declaration)
      6 esid: sec-web-compat-evaldeclarationinstantiation
      7 flags: [generated, noStrict]
      8 info: |
      9    B.3.3.3 Changes to EvalDeclarationInstantiation
     10 
     11    [...]
     12    ii. If replacing the FunctionDeclaration f with a VariableStatement that
     13        has F as a BindingIdentifier would not produce any Early Errors for
     14        body, then
     15    [...]
     16 
     17    B.3.5 VariableStatements in Catch Blocks
     18 
     19    [...]
     20    - It is a Syntax Error if any element of the BoundNames of CatchParameter
     21      also occurs in the VarDeclaredNames of Block unless CatchParameter is
     22      CatchParameter:BindingIdentifier and that element is only bound by a
     23      VariableStatement, the VariableDeclarationList of a for statement, or the
     24      ForBinding of a for-in statement.
     25 ---*/
     26 
     27 eval(
     28  'assert.throws(ReferenceError, function() {\
     29    f;\
     30  }, "An initialized binding is not created prior to evaluation");\
     31  assert.sameValue(\
     32    typeof f,\
     33    "undefined",\
     34    "An uninitialized binding is not created prior to evaluation"\
     35  );\
     36  \
     37  try {\
     38    throw {};\
     39  } catch ({ f }) {{ function f() {  } }}\
     40  \
     41  assert.throws(ReferenceError, function() {\
     42    f;\
     43  }, "An initialized binding is not created following evaluation");\
     44  assert.sameValue(\
     45    typeof f,\
     46    "undefined",\
     47    "An uninitialized binding is not created following evaluation"\
     48  );'
     49 );
     50 
     51 reportCompare(0, 0);