javascript - util_test.go

     1  package javascript
     2  
     3  import (
     4  	"errors"
     5  	"reflect"
     6  	"testing"
     7  
     8  	"vimagination.zapto.org/parser"
     9  )
    10  
    11  func TestUnquote(t *testing.T) {
    12  	for n, test := range [...]struct {
    13  		Input, Output string
    14  		Err           error
    15  	}{
    16  		{ // 1
    17  			"\"\"",
    18  			"",
    19  			nil,
    20  		},
    21  		{ // 2
    22  			"''",
    23  			"",
    24  			nil,
    25  		},
    26  		{ // 3
    27  			"\"a\"",
    28  			"a",
    29  			nil,
    30  		},
    31  		{ // 4
    32  			"'a'",
    33  			"a",
    34  			nil,
    35  		},
    36  		{ // 5
    37  			"\"\\'\\\"\\\\\\b\\f\\n\\r\\t\\v\"",
    38  			"'\"\\\b\f\n\r\t\v",
    39  			nil,
    40  		},
    41  		{ // 6
    42  			"\"\x41\"",
    43  			"A",
    44  			nil,
    45  		},
    46  		{ // 7
    47  			"",
    48  			"",
    49  			ErrInvalidQuoted,
    50  		},
    51  		{ // 8
    52  			"\"\\x41\"",
    53  			"A",
    54  			nil,
    55  		},
    56  		{ // 9
    57  			"\"\\x4G\"",
    58  			"",
    59  			ErrInvalidQuoted,
    60  		},
    61  		{ // 10
    62  			"\"\\xG1\"",
    63  			"",
    64  			ErrInvalidQuoted,
    65  		},
    66  		{ // 11
    67  			"\"\\u0041\"",
    68  			"A",
    69  			nil,
    70  		},
    71  		{ // 12
    72  			"\"\\u004G\"",
    73  			"",
    74  			ErrInvalidQuoted,
    75  		},
    76  		{ // 13
    77  			"\"\\u00G1\"",
    78  			"",
    79  			ErrInvalidQuoted,
    80  		},
    81  		{ // 14
    82  			"\"\\u0G41\"",
    83  			"",
    84  			ErrInvalidQuoted,
    85  		},
    86  		{ // 15
    87  			"\"\\uG041\"",
    88  			"",
    89  			ErrInvalidQuoted,
    90  		},
    91  		{ // 16
    92  			"\"\\c\"",
    93  			"c",
    94  			nil,
    95  		},
    96  		{ // 17
    97  			"\"\n\"",
    98  			"",
    99  			ErrInvalidQuoted,
   100  		},
   101  		{ // 18
   102  			"\"\\0\"",
   103  			"\000",
   104  			nil,
   105  		},
   106  		{ // 19
   107  			"\"\\01\"",
   108  			"",
   109  			ErrInvalidQuoted,
   110  		},
   111  		{ // 20
   112  			"\"\\u{41}\"",
   113  			"A",
   114  			nil,
   115  		},
   116  		{ // 21
   117  			"\"\\u{}\"",
   118  			"",
   119  			ErrInvalidQuoted,
   120  		},
   121  		{ // 22
   122  			"\"\\u{41G}\"",
   123  			"",
   124  			ErrInvalidQuoted,
   125  		},
   126  		{ // 23
   127  			"\"\\u{41\"",
   128  			"",
   129  			ErrInvalidQuoted,
   130  		},
   131  		{ // 24
   132  			"'\\'\\\"\\\\\\b\\f\\n\\r\\t\\v'",
   133  			"'\"\\\b\f\n\r\t\v",
   134  			nil,
   135  		},
   136  		{ // 25
   137  			"'\x41'",
   138  			"A",
   139  			nil,
   140  		},
   141  		{ // 26
   142  			"'\\x41'",
   143  			"A",
   144  			nil,
   145  		},
   146  		{ // 27
   147  			"'\\x4G'",
   148  			"",
   149  			ErrInvalidQuoted,
   150  		},
   151  		{ // 28
   152  			"'\\xG1'",
   153  			"",
   154  			ErrInvalidQuoted,
   155  		},
   156  		{ // 29
   157  			"'\\u0041'",
   158  			"A",
   159  			nil,
   160  		},
   161  		{ // 30
   162  			"'\\u004G'",
   163  			"",
   164  			ErrInvalidQuoted,
   165  		},
   166  		{ // 31
   167  			"'\\u00G1'",
   168  			"",
   169  			ErrInvalidQuoted,
   170  		},
   171  		{ // 32
   172  			"'\\u0G41'",
   173  			"",
   174  			ErrInvalidQuoted,
   175  		},
   176  		{ // 33
   177  			"'\\uG041'",
   178  			"",
   179  			ErrInvalidQuoted,
   180  		},
   181  		{ // 34
   182  			"'\\c'",
   183  			"c",
   184  			nil,
   185  		},
   186  		{ // 35
   187  			"'\n'",
   188  			"",
   189  			ErrInvalidQuoted,
   190  		},
   191  		{ // 36
   192  			"'\\0'",
   193  			"\000",
   194  			nil,
   195  		},
   196  		{ // 37
   197  			"'\\01'",
   198  			"",
   199  			ErrInvalidQuoted,
   200  		},
   201  		{ // 38
   202  			"'\\u{41}'",
   203  			"A",
   204  			nil,
   205  		},
   206  		{ // 39
   207  			"'\\u{}'",
   208  			"",
   209  			ErrInvalidQuoted,
   210  		},
   211  		{ // 40
   212  			"'\\u{41G}'",
   213  			"",
   214  			ErrInvalidQuoted,
   215  		},
   216  		{ // 41
   217  			"'\\u{41'",
   218  			"",
   219  			ErrInvalidQuoted,
   220  		},
   221  		{ // 42
   222  			"\"\\/\"",
   223  			"/",
   224  			nil,
   225  		},
   226  	} {
   227  		if o, err := Unquote(test.Input); !errors.Is(err, test.Err) {
   228  			t.Errorf("test %d: expecting error %q, got %q", n+1, test.Err, err)
   229  		} else if o != test.Output {
   230  			t.Errorf("test %d: from %s, expecting output %q, got %q", n+1, test.Input, test.Output, o)
   231  		}
   232  	}
   233  }
   234  
   235  func TestUnquoteTemplate(t *testing.T) {
   236  	for n, test := range [...]struct {
   237  		Input, Output string
   238  		Err           error
   239  	}{
   240  		{ // 1
   241  			"``",
   242  			"",
   243  			nil,
   244  		},
   245  		{ // 2
   246  			"}`",
   247  			"",
   248  			nil,
   249  		},
   250  		{ // 3
   251  			"`${",
   252  			"",
   253  			nil,
   254  		},
   255  		{ // 4
   256  			"}${",
   257  			"",
   258  			nil,
   259  		},
   260  		{ // 5
   261  			"`",
   262  			"",
   263  			ErrInvalidQuoted,
   264  		},
   265  		{ // 6
   266  			"}",
   267  			"",
   268  			ErrInvalidQuoted,
   269  		},
   270  		{ // 7
   271  			"${",
   272  			"",
   273  			ErrInvalidQuoted,
   274  		},
   275  		{ // 8
   276  			"`a`",
   277  			"a",
   278  			nil,
   279  		},
   280  		{ // 9
   281  			"`\\'\\\"\\\\\\b\\f\\n\\r\\t\\v`",
   282  			"'\"\\\b\f\n\r\t\v",
   283  			nil,
   284  		},
   285  		{ // 10
   286  			"`\x41`",
   287  			"A",
   288  			nil,
   289  		},
   290  		{ // 11
   291  			"`\n`",
   292  			"\n",
   293  			nil,
   294  		},
   295  		{ // 12
   296  			"`\\x4G`",
   297  			"",
   298  			ErrInvalidQuoted,
   299  		},
   300  		{ // 13
   301  			"`\\u0041`",
   302  			"A",
   303  			nil,
   304  		},
   305  		{ // 14
   306  			"`\\u00G1`",
   307  			"",
   308  			ErrInvalidQuoted,
   309  		},
   310  		{ // 15
   311  			"`\\c`",
   312  			"c",
   313  			nil,
   314  		},
   315  		{ // 16
   316  			"`\\0`",
   317  			"\000",
   318  			nil,
   319  		},
   320  		{ // 17
   321  			"`\\u{41}`",
   322  			"A",
   323  			nil,
   324  		},
   325  		{ // 18
   326  			"`\\u{}`",
   327  			"",
   328  			ErrInvalidQuoted,
   329  		},
   330  		{ // 19
   331  			"`\\${`",
   332  			"${",
   333  			nil,
   334  		},
   335  	} {
   336  		o, err := UnquoteTemplate(test.Input)
   337  		if !errors.Is(err, test.Err) {
   338  			t.Errorf("test %d: expecting error %q, got %q", n+1, test.Err, err)
   339  		} else if o != test.Output {
   340  			t.Errorf("test %d: from %s, expecting output %q, got %q", n+1, test.Input, test.Output, o)
   341  		}
   342  	}
   343  }
   344  
   345  func TestQuoteTemplate(t *testing.T) {
   346  	for n, test := range [...]struct {
   347  		Input, Output string
   348  		templateType  TemplateType
   349  	}{
   350  		{ // 1
   351  			"",
   352  			"``",
   353  			TemplateNoSubstitution,
   354  		},
   355  		{ // 2
   356  			"a",
   357  			"`a`",
   358  			TemplateNoSubstitution,
   359  		},
   360  		{ // 3
   361  			"abc",
   362  			"`abc`",
   363  			TemplateNoSubstitution,
   364  		},
   365  		{ // 4
   366  			"a\nb	c",
   367  			"`a\nb	c`",
   368  			TemplateNoSubstitution,
   369  		},
   370  		{ // 5
   371  			"\\n",
   372  			"`\\\\n`",
   373  			TemplateNoSubstitution,
   374  		},
   375  		{ // 6
   376  			"a$b",
   377  			"`a$b`",
   378  			TemplateNoSubstitution,
   379  		},
   380  		{ // 7
   381  			"a${b",
   382  			"`a\\${b`",
   383  			TemplateNoSubstitution,
   384  		},
   385  		{ // 8
   386  			"`",
   387  			"`\\``",
   388  			TemplateNoSubstitution,
   389  		},
   390  		{ // 9
   391  			"",
   392  			"`${",
   393  			TemplateHead,
   394  		},
   395  		{ // 10
   396  			"a",
   397  			"`a${",
   398  			TemplateHead,
   399  		},
   400  		{ // 11
   401  			"abc",
   402  			"`abc${",
   403  			TemplateHead,
   404  		},
   405  		{ // 12
   406  			"a\nb	c",
   407  			"`a\nb	c${",
   408  			TemplateHead,
   409  		},
   410  		{ // 13
   411  			"\\n",
   412  			"`\\\\n${",
   413  			TemplateHead,
   414  		},
   415  		{ // 14
   416  			"a$b",
   417  			"`a$b${",
   418  			TemplateHead,
   419  		},
   420  		{ // 15
   421  			"a${b",
   422  			"`a\\${b${",
   423  			TemplateHead,
   424  		},
   425  		{ // 16
   426  			"`",
   427  			"`\\`${",
   428  			TemplateHead,
   429  		},
   430  		{ // 17
   431  			"",
   432  			"}${",
   433  			TemplateMiddle,
   434  		},
   435  		{ // 18
   436  			"a",
   437  			"}a${",
   438  			TemplateMiddle,
   439  		},
   440  		{ // 19
   441  			"abc",
   442  			"}abc${",
   443  			TemplateMiddle,
   444  		},
   445  		{ // 20
   446  			"a\nb	c",
   447  			"}a\nb	c${",
   448  			TemplateMiddle,
   449  		},
   450  		{ // 21
   451  			"\\n",
   452  			"}\\\\n${",
   453  			TemplateMiddle,
   454  		},
   455  		{ // 22
   456  			"a$b",
   457  			"}a$b${",
   458  			TemplateMiddle,
   459  		},
   460  		{ // 23
   461  			"a${b",
   462  			"}a\\${b${",
   463  			TemplateMiddle,
   464  		},
   465  		{ // 24
   466  			"`",
   467  			"}\\`${",
   468  			TemplateMiddle,
   469  		},
   470  		{ // 25
   471  			"",
   472  			"}`",
   473  			TemplateTail,
   474  		},
   475  		{ // 26
   476  			"a",
   477  			"}a`",
   478  			TemplateTail,
   479  		},
   480  		{ // 27
   481  			"abc",
   482  			"}abc`",
   483  			TemplateTail,
   484  		},
   485  		{ // 28
   486  			"a\nb	c",
   487  			"}a\nb	c`",
   488  			TemplateTail,
   489  		},
   490  		{ // 29
   491  			"\\n",
   492  			"}\\\\n`",
   493  			TemplateTail,
   494  		},
   495  		{ // 30
   496  			"a$b",
   497  			"}a$b`",
   498  			TemplateTail,
   499  		},
   500  		{ // 31
   501  			"a${b",
   502  			"}a\\${b`",
   503  			TemplateTail,
   504  		},
   505  		{ // 32
   506  			"`",
   507  			"}\\``",
   508  			TemplateTail,
   509  		},
   510  	} {
   511  		if out := QuoteTemplate(test.Input, test.templateType); out != test.Output {
   512  			t.Errorf("test %d: expecting output %s, got %s", n+1, test.Output, out)
   513  		}
   514  	}
   515  }
   516  
   517  func TestWrapConditional(t *testing.T) {
   518  	tks := Tokens{
   519  		{
   520  			Token: parser.Token{
   521  				Type: TokenNoSubstitutionTemplate,
   522  				Data: "`abc`",
   523  			},
   524  		},
   525  	}
   526  	template := &TemplateLiteral{
   527  		NoSubstitutionTemplate: &tks[0],
   528  		Tokens:                 tks,
   529  	}
   530  	expectedOutput := ConditionalExpression{
   531  		LogicalORExpression: &LogicalORExpression{
   532  			LogicalANDExpression: LogicalANDExpression{
   533  				BitwiseORExpression: BitwiseORExpression{
   534  					BitwiseXORExpression: BitwiseXORExpression{
   535  						BitwiseANDExpression: BitwiseANDExpression{
   536  							EqualityExpression: EqualityExpression{
   537  								RelationalExpression: RelationalExpression{
   538  									ShiftExpression: ShiftExpression{
   539  										AdditiveExpression: AdditiveExpression{
   540  											MultiplicativeExpression: MultiplicativeExpression{
   541  												ExponentiationExpression: ExponentiationExpression{
   542  													UnaryExpression: UnaryExpression{
   543  														UpdateExpression: UpdateExpression{
   544  															LeftHandSideExpression: &LeftHandSideExpression{
   545  																NewExpression: &NewExpression{
   546  																	MemberExpression: MemberExpression{
   547  																		PrimaryExpression: &PrimaryExpression{
   548  																			TemplateLiteral: template,
   549  																			Tokens:          tks,
   550  																		},
   551  																		Tokens: tks,
   552  																	},
   553  																	Tokens: tks,
   554  																},
   555  																Tokens: tks,
   556  															},
   557  															Tokens: tks,
   558  														},
   559  														Tokens: tks,
   560  													},
   561  													Tokens: tks,
   562  												},
   563  												Tokens: tks,
   564  											},
   565  											Tokens: tks,
   566  										},
   567  										Tokens: tks,
   568  									},
   569  									Tokens: tks,
   570  								},
   571  								Tokens: tks,
   572  							},
   573  							Tokens: tks,
   574  						},
   575  						Tokens: tks,
   576  					},
   577  					Tokens: tks,
   578  				},
   579  				Tokens: tks,
   580  			},
   581  			Tokens: tks,
   582  		},
   583  		Tokens: tks,
   584  	}
   585  
   586  	for n, test := range [...]ConditionalWrappable{
   587  		template,  // 1
   588  		*template, // 2
   589  		&PrimaryExpression{ // 3
   590  			TemplateLiteral: template,
   591  			Tokens:          tks,
   592  		},
   593  		PrimaryExpression{ // 4
   594  			TemplateLiteral: template,
   595  			Tokens:          tks,
   596  		},
   597  		&MemberExpression{ // 5
   598  			PrimaryExpression: &PrimaryExpression{
   599  				TemplateLiteral: template,
   600  				Tokens:          tks,
   601  			},
   602  			Tokens: tks,
   603  		},
   604  		MemberExpression{ // 6
   605  			PrimaryExpression: &PrimaryExpression{
   606  				TemplateLiteral: template,
   607  				Tokens:          tks,
   608  			},
   609  			Tokens: tks,
   610  		},
   611  		&NewExpression{ // 7
   612  			MemberExpression: MemberExpression{
   613  				PrimaryExpression: &PrimaryExpression{
   614  					TemplateLiteral: template,
   615  					Tokens:          tks,
   616  				},
   617  				Tokens: tks,
   618  			},
   619  			Tokens: tks,
   620  		},
   621  		NewExpression{ // 8
   622  			MemberExpression: MemberExpression{
   623  				PrimaryExpression: &PrimaryExpression{
   624  					TemplateLiteral: template,
   625  					Tokens:          tks,
   626  				},
   627  				Tokens: tks,
   628  			},
   629  			Tokens: tks,
   630  		},
   631  		&LeftHandSideExpression{ // 9
   632  			NewExpression: &NewExpression{
   633  				MemberExpression: MemberExpression{
   634  					PrimaryExpression: &PrimaryExpression{
   635  						TemplateLiteral: template,
   636  						Tokens:          tks,
   637  					},
   638  					Tokens: tks,
   639  				},
   640  				Tokens: tks,
   641  			},
   642  			Tokens: tks,
   643  		},
   644  		LeftHandSideExpression{ // 10
   645  			NewExpression: &NewExpression{
   646  				MemberExpression: MemberExpression{
   647  					PrimaryExpression: &PrimaryExpression{
   648  						TemplateLiteral: template,
   649  						Tokens:          tks,
   650  					},
   651  					Tokens: tks,
   652  				},
   653  				Tokens: tks,
   654  			},
   655  			Tokens: tks,
   656  		},
   657  		&UpdateExpression{ // 11
   658  			LeftHandSideExpression: &LeftHandSideExpression{
   659  				NewExpression: &NewExpression{
   660  					MemberExpression: MemberExpression{
   661  						PrimaryExpression: &PrimaryExpression{
   662  							TemplateLiteral: template,
   663  							Tokens:          tks,
   664  						},
   665  						Tokens: tks,
   666  					},
   667  					Tokens: tks,
   668  				},
   669  				Tokens: tks,
   670  			},
   671  			Tokens: tks,
   672  		},
   673  		UpdateExpression{ // 12
   674  			LeftHandSideExpression: &LeftHandSideExpression{
   675  				NewExpression: &NewExpression{
   676  					MemberExpression: MemberExpression{
   677  						PrimaryExpression: &PrimaryExpression{
   678  							TemplateLiteral: template,
   679  							Tokens:          tks,
   680  						},
   681  						Tokens: tks,
   682  					},
   683  					Tokens: tks,
   684  				},
   685  				Tokens: tks,
   686  			},
   687  			Tokens: tks,
   688  		},
   689  		&UnaryExpression{ // 13
   690  			UpdateExpression: UpdateExpression{
   691  				LeftHandSideExpression: &LeftHandSideExpression{
   692  					NewExpression: &NewExpression{
   693  						MemberExpression: MemberExpression{
   694  							PrimaryExpression: &PrimaryExpression{
   695  								TemplateLiteral: template,
   696  								Tokens:          tks,
   697  							},
   698  							Tokens: tks,
   699  						},
   700  						Tokens: tks,
   701  					},
   702  					Tokens: tks,
   703  				},
   704  				Tokens: tks,
   705  			},
   706  			Tokens: tks,
   707  		},
   708  		UnaryExpression{ // 14
   709  			UpdateExpression: UpdateExpression{
   710  				LeftHandSideExpression: &LeftHandSideExpression{
   711  					NewExpression: &NewExpression{
   712  						MemberExpression: MemberExpression{
   713  							PrimaryExpression: &PrimaryExpression{
   714  								TemplateLiteral: template,
   715  								Tokens:          tks,
   716  							},
   717  							Tokens: tks,
   718  						},
   719  						Tokens: tks,
   720  					},
   721  					Tokens: tks,
   722  				},
   723  				Tokens: tks,
   724  			},
   725  			Tokens: tks,
   726  		},
   727  		&ExponentiationExpression{ // 15
   728  			UnaryExpression: UnaryExpression{
   729  				UpdateExpression: UpdateExpression{
   730  					LeftHandSideExpression: &LeftHandSideExpression{
   731  						NewExpression: &NewExpression{
   732  							MemberExpression: MemberExpression{
   733  								PrimaryExpression: &PrimaryExpression{
   734  									TemplateLiteral: template,
   735  									Tokens:          tks,
   736  								},
   737  								Tokens: tks,
   738  							},
   739  							Tokens: tks,
   740  						},
   741  						Tokens: tks,
   742  					},
   743  					Tokens: tks,
   744  				},
   745  				Tokens: tks,
   746  			},
   747  			Tokens: tks,
   748  		},
   749  		ExponentiationExpression{ // 16
   750  			UnaryExpression: UnaryExpression{
   751  				UpdateExpression: UpdateExpression{
   752  					LeftHandSideExpression: &LeftHandSideExpression{
   753  						NewExpression: &NewExpression{
   754  							MemberExpression: MemberExpression{
   755  								PrimaryExpression: &PrimaryExpression{
   756  									TemplateLiteral: template,
   757  									Tokens:          tks,
   758  								},
   759  								Tokens: tks,
   760  							},
   761  							Tokens: tks,
   762  						},
   763  						Tokens: tks,
   764  					},
   765  					Tokens: tks,
   766  				},
   767  				Tokens: tks,
   768  			},
   769  			Tokens: tks,
   770  		},
   771  		&MultiplicativeExpression{ // 17
   772  			ExponentiationExpression: ExponentiationExpression{
   773  				UnaryExpression: UnaryExpression{
   774  					UpdateExpression: UpdateExpression{
   775  						LeftHandSideExpression: &LeftHandSideExpression{
   776  							NewExpression: &NewExpression{
   777  								MemberExpression: MemberExpression{
   778  									PrimaryExpression: &PrimaryExpression{
   779  										TemplateLiteral: template,
   780  										Tokens:          tks,
   781  									},
   782  									Tokens: tks,
   783  								},
   784  								Tokens: tks,
   785  							},
   786  							Tokens: tks,
   787  						},
   788  						Tokens: tks,
   789  					},
   790  					Tokens: tks,
   791  				},
   792  				Tokens: tks,
   793  			},
   794  			Tokens: tks,
   795  		},
   796  		MultiplicativeExpression{ // 18
   797  			ExponentiationExpression: ExponentiationExpression{
   798  				UnaryExpression: UnaryExpression{
   799  					UpdateExpression: UpdateExpression{
   800  						LeftHandSideExpression: &LeftHandSideExpression{
   801  							NewExpression: &NewExpression{
   802  								MemberExpression: MemberExpression{
   803  									PrimaryExpression: &PrimaryExpression{
   804  										TemplateLiteral: template,
   805  										Tokens:          tks,
   806  									},
   807  									Tokens: tks,
   808  								},
   809  								Tokens: tks,
   810  							},
   811  							Tokens: tks,
   812  						},
   813  						Tokens: tks,
   814  					},
   815  					Tokens: tks,
   816  				},
   817  				Tokens: tks,
   818  			},
   819  			Tokens: tks,
   820  		},
   821  		&AdditiveExpression{ // 19
   822  			MultiplicativeExpression: MultiplicativeExpression{
   823  				ExponentiationExpression: ExponentiationExpression{
   824  					UnaryExpression: UnaryExpression{
   825  						UpdateExpression: UpdateExpression{
   826  							LeftHandSideExpression: &LeftHandSideExpression{
   827  								NewExpression: &NewExpression{
   828  									MemberExpression: MemberExpression{
   829  										PrimaryExpression: &PrimaryExpression{
   830  											TemplateLiteral: template,
   831  											Tokens:          tks,
   832  										},
   833  										Tokens: tks,
   834  									},
   835  									Tokens: tks,
   836  								},
   837  								Tokens: tks,
   838  							},
   839  							Tokens: tks,
   840  						},
   841  						Tokens: tks,
   842  					},
   843  					Tokens: tks,
   844  				},
   845  				Tokens: tks,
   846  			},
   847  			Tokens: tks,
   848  		},
   849  		AdditiveExpression{ // 20
   850  			MultiplicativeExpression: MultiplicativeExpression{
   851  				ExponentiationExpression: ExponentiationExpression{
   852  					UnaryExpression: UnaryExpression{
   853  						UpdateExpression: UpdateExpression{
   854  							LeftHandSideExpression: &LeftHandSideExpression{
   855  								NewExpression: &NewExpression{
   856  									MemberExpression: MemberExpression{
   857  										PrimaryExpression: &PrimaryExpression{
   858  											TemplateLiteral: template,
   859  											Tokens:          tks,
   860  										},
   861  										Tokens: tks,
   862  									},
   863  									Tokens: tks,
   864  								},
   865  								Tokens: tks,
   866  							},
   867  							Tokens: tks,
   868  						},
   869  						Tokens: tks,
   870  					},
   871  					Tokens: tks,
   872  				},
   873  				Tokens: tks,
   874  			},
   875  			Tokens: tks,
   876  		},
   877  		&ShiftExpression{ // 21
   878  			AdditiveExpression: AdditiveExpression{
   879  				MultiplicativeExpression: MultiplicativeExpression{
   880  					ExponentiationExpression: ExponentiationExpression{
   881  						UnaryExpression: UnaryExpression{
   882  							UpdateExpression: UpdateExpression{
   883  								LeftHandSideExpression: &LeftHandSideExpression{
   884  									NewExpression: &NewExpression{
   885  										MemberExpression: MemberExpression{
   886  											PrimaryExpression: &PrimaryExpression{
   887  												TemplateLiteral: template,
   888  												Tokens:          tks,
   889  											},
   890  											Tokens: tks,
   891  										},
   892  										Tokens: tks,
   893  									},
   894  									Tokens: tks,
   895  								},
   896  								Tokens: tks,
   897  							},
   898  							Tokens: tks,
   899  						},
   900  						Tokens: tks,
   901  					},
   902  					Tokens: tks,
   903  				},
   904  				Tokens: tks,
   905  			},
   906  			Tokens: tks,
   907  		},
   908  		&ShiftExpression{ // 22
   909  			AdditiveExpression: AdditiveExpression{
   910  				MultiplicativeExpression: MultiplicativeExpression{
   911  					ExponentiationExpression: ExponentiationExpression{
   912  						UnaryExpression: UnaryExpression{
   913  							UpdateExpression: UpdateExpression{
   914  								LeftHandSideExpression: &LeftHandSideExpression{
   915  									NewExpression: &NewExpression{
   916  										MemberExpression: MemberExpression{
   917  											PrimaryExpression: &PrimaryExpression{
   918  												TemplateLiteral: template,
   919  												Tokens:          tks,
   920  											},
   921  											Tokens: tks,
   922  										},
   923  										Tokens: tks,
   924  									},
   925  									Tokens: tks,
   926  								},
   927  								Tokens: tks,
   928  							},
   929  							Tokens: tks,
   930  						},
   931  						Tokens: tks,
   932  					},
   933  					Tokens: tks,
   934  				},
   935  				Tokens: tks,
   936  			},
   937  			Tokens: tks,
   938  		},
   939  		&RelationalExpression{ // 23
   940  			ShiftExpression: ShiftExpression{
   941  				AdditiveExpression: AdditiveExpression{
   942  					MultiplicativeExpression: MultiplicativeExpression{
   943  						ExponentiationExpression: ExponentiationExpression{
   944  							UnaryExpression: UnaryExpression{
   945  								UpdateExpression: UpdateExpression{
   946  									LeftHandSideExpression: &LeftHandSideExpression{
   947  										NewExpression: &NewExpression{
   948  											MemberExpression: MemberExpression{
   949  												PrimaryExpression: &PrimaryExpression{
   950  													TemplateLiteral: template,
   951  													Tokens:          tks,
   952  												},
   953  												Tokens: tks,
   954  											},
   955  											Tokens: tks,
   956  										},
   957  										Tokens: tks,
   958  									},
   959  									Tokens: tks,
   960  								},
   961  								Tokens: tks,
   962  							},
   963  							Tokens: tks,
   964  						},
   965  						Tokens: tks,
   966  					},
   967  					Tokens: tks,
   968  				},
   969  				Tokens: tks,
   970  			},
   971  			Tokens: tks,
   972  		},
   973  		RelationalExpression{ // 24
   974  			ShiftExpression: ShiftExpression{
   975  				AdditiveExpression: AdditiveExpression{
   976  					MultiplicativeExpression: MultiplicativeExpression{
   977  						ExponentiationExpression: ExponentiationExpression{
   978  							UnaryExpression: UnaryExpression{
   979  								UpdateExpression: UpdateExpression{
   980  									LeftHandSideExpression: &LeftHandSideExpression{
   981  										NewExpression: &NewExpression{
   982  											MemberExpression: MemberExpression{
   983  												PrimaryExpression: &PrimaryExpression{
   984  													TemplateLiteral: template,
   985  													Tokens:          tks,
   986  												},
   987  												Tokens: tks,
   988  											},
   989  											Tokens: tks,
   990  										},
   991  										Tokens: tks,
   992  									},
   993  									Tokens: tks,
   994  								},
   995  								Tokens: tks,
   996  							},
   997  							Tokens: tks,
   998  						},
   999  						Tokens: tks,
  1000  					},
  1001  					Tokens: tks,
  1002  				},
  1003  				Tokens: tks,
  1004  			},
  1005  			Tokens: tks,
  1006  		},
  1007  		&EqualityExpression{ // 25
  1008  			RelationalExpression: RelationalExpression{
  1009  				ShiftExpression: ShiftExpression{
  1010  					AdditiveExpression: AdditiveExpression{
  1011  						MultiplicativeExpression: MultiplicativeExpression{
  1012  							ExponentiationExpression: ExponentiationExpression{
  1013  								UnaryExpression: UnaryExpression{
  1014  									UpdateExpression: UpdateExpression{
  1015  										LeftHandSideExpression: &LeftHandSideExpression{
  1016  											NewExpression: &NewExpression{
  1017  												MemberExpression: MemberExpression{
  1018  													PrimaryExpression: &PrimaryExpression{
  1019  														TemplateLiteral: template,
  1020  														Tokens:          tks,
  1021  													},
  1022  													Tokens: tks,
  1023  												},
  1024  												Tokens: tks,
  1025  											},
  1026  											Tokens: tks,
  1027  										},
  1028  										Tokens: tks,
  1029  									},
  1030  									Tokens: tks,
  1031  								},
  1032  								Tokens: tks,
  1033  							},
  1034  							Tokens: tks,
  1035  						},
  1036  						Tokens: tks,
  1037  					},
  1038  					Tokens: tks,
  1039  				},
  1040  				Tokens: tks,
  1041  			},
  1042  			Tokens: tks,
  1043  		},
  1044  		EqualityExpression{ // 26
  1045  			RelationalExpression: RelationalExpression{
  1046  				ShiftExpression: ShiftExpression{
  1047  					AdditiveExpression: AdditiveExpression{
  1048  						MultiplicativeExpression: MultiplicativeExpression{
  1049  							ExponentiationExpression: ExponentiationExpression{
  1050  								UnaryExpression: UnaryExpression{
  1051  									UpdateExpression: UpdateExpression{
  1052  										LeftHandSideExpression: &LeftHandSideExpression{
  1053  											NewExpression: &NewExpression{
  1054  												MemberExpression: MemberExpression{
  1055  													PrimaryExpression: &PrimaryExpression{
  1056  														TemplateLiteral: template,
  1057  														Tokens:          tks,
  1058  													},
  1059  													Tokens: tks,
  1060  												},
  1061  												Tokens: tks,
  1062  											},
  1063  											Tokens: tks,
  1064  										},
  1065  										Tokens: tks,
  1066  									},
  1067  									Tokens: tks,
  1068  								},
  1069  								Tokens: tks,
  1070  							},
  1071  							Tokens: tks,
  1072  						},
  1073  						Tokens: tks,
  1074  					},
  1075  					Tokens: tks,
  1076  				},
  1077  				Tokens: tks,
  1078  			},
  1079  			Tokens: tks,
  1080  		},
  1081  		&BitwiseANDExpression{ // 27
  1082  			EqualityExpression: EqualityExpression{
  1083  				RelationalExpression: RelationalExpression{
  1084  					ShiftExpression: ShiftExpression{
  1085  						AdditiveExpression: AdditiveExpression{
  1086  							MultiplicativeExpression: MultiplicativeExpression{
  1087  								ExponentiationExpression: ExponentiationExpression{
  1088  									UnaryExpression: UnaryExpression{
  1089  										UpdateExpression: UpdateExpression{
  1090  											LeftHandSideExpression: &LeftHandSideExpression{
  1091  												NewExpression: &NewExpression{
  1092  													MemberExpression: MemberExpression{
  1093  														PrimaryExpression: &PrimaryExpression{
  1094  															TemplateLiteral: template,
  1095  															Tokens:          tks,
  1096  														},
  1097  														Tokens: tks,
  1098  													},
  1099  													Tokens: tks,
  1100  												},
  1101  												Tokens: tks,
  1102  											},
  1103  											Tokens: tks,
  1104  										},
  1105  										Tokens: tks,
  1106  									},
  1107  									Tokens: tks,
  1108  								},
  1109  								Tokens: tks,
  1110  							},
  1111  							Tokens: tks,
  1112  						},
  1113  						Tokens: tks,
  1114  					},
  1115  					Tokens: tks,
  1116  				},
  1117  				Tokens: tks,
  1118  			},
  1119  			Tokens: tks,
  1120  		},
  1121  		BitwiseANDExpression{ // 28
  1122  			EqualityExpression: EqualityExpression{
  1123  				RelationalExpression: RelationalExpression{
  1124  					ShiftExpression: ShiftExpression{
  1125  						AdditiveExpression: AdditiveExpression{
  1126  							MultiplicativeExpression: MultiplicativeExpression{
  1127  								ExponentiationExpression: ExponentiationExpression{
  1128  									UnaryExpression: UnaryExpression{
  1129  										UpdateExpression: UpdateExpression{
  1130  											LeftHandSideExpression: &LeftHandSideExpression{
  1131  												NewExpression: &NewExpression{
  1132  													MemberExpression: MemberExpression{
  1133  														PrimaryExpression: &PrimaryExpression{
  1134  															TemplateLiteral: template,
  1135  															Tokens:          tks,
  1136  														},
  1137  														Tokens: tks,
  1138  													},
  1139  													Tokens: tks,
  1140  												},
  1141  												Tokens: tks,
  1142  											},
  1143  											Tokens: tks,
  1144  										},
  1145  										Tokens: tks,
  1146  									},
  1147  									Tokens: tks,
  1148  								},
  1149  								Tokens: tks,
  1150  							},
  1151  							Tokens: tks,
  1152  						},
  1153  						Tokens: tks,
  1154  					},
  1155  					Tokens: tks,
  1156  				},
  1157  				Tokens: tks,
  1158  			},
  1159  			Tokens: tks,
  1160  		},
  1161  		&BitwiseXORExpression{ // 29
  1162  			BitwiseANDExpression: BitwiseANDExpression{
  1163  				EqualityExpression: EqualityExpression{
  1164  					RelationalExpression: RelationalExpression{
  1165  						ShiftExpression: ShiftExpression{
  1166  							AdditiveExpression: AdditiveExpression{
  1167  								MultiplicativeExpression: MultiplicativeExpression{
  1168  									ExponentiationExpression: ExponentiationExpression{
  1169  										UnaryExpression: UnaryExpression{
  1170  											UpdateExpression: UpdateExpression{
  1171  												LeftHandSideExpression: &LeftHandSideExpression{
  1172  													NewExpression: &NewExpression{
  1173  														MemberExpression: MemberExpression{
  1174  															PrimaryExpression: &PrimaryExpression{
  1175  																TemplateLiteral: template,
  1176  																Tokens:          tks,
  1177  															},
  1178  															Tokens: tks,
  1179  														},
  1180  														Tokens: tks,
  1181  													},
  1182  													Tokens: tks,
  1183  												},
  1184  												Tokens: tks,
  1185  											},
  1186  											Tokens: tks,
  1187  										},
  1188  										Tokens: tks,
  1189  									},
  1190  									Tokens: tks,
  1191  								},
  1192  								Tokens: tks,
  1193  							},
  1194  							Tokens: tks,
  1195  						},
  1196  						Tokens: tks,
  1197  					},
  1198  					Tokens: tks,
  1199  				},
  1200  				Tokens: tks,
  1201  			},
  1202  			Tokens: tks,
  1203  		},
  1204  		BitwiseXORExpression{ // 30
  1205  			BitwiseANDExpression: BitwiseANDExpression{
  1206  				EqualityExpression: EqualityExpression{
  1207  					RelationalExpression: RelationalExpression{
  1208  						ShiftExpression: ShiftExpression{
  1209  							AdditiveExpression: AdditiveExpression{
  1210  								MultiplicativeExpression: MultiplicativeExpression{
  1211  									ExponentiationExpression: ExponentiationExpression{
  1212  										UnaryExpression: UnaryExpression{
  1213  											UpdateExpression: UpdateExpression{
  1214  												LeftHandSideExpression: &LeftHandSideExpression{
  1215  													NewExpression: &NewExpression{
  1216  														MemberExpression: MemberExpression{
  1217  															PrimaryExpression: &PrimaryExpression{
  1218  																TemplateLiteral: template,
  1219  																Tokens:          tks,
  1220  															},
  1221  															Tokens: tks,
  1222  														},
  1223  														Tokens: tks,
  1224  													},
  1225  													Tokens: tks,
  1226  												},
  1227  												Tokens: tks,
  1228  											},
  1229  											Tokens: tks,
  1230  										},
  1231  										Tokens: tks,
  1232  									},
  1233  									Tokens: tks,
  1234  								},
  1235  								Tokens: tks,
  1236  							},
  1237  							Tokens: tks,
  1238  						},
  1239  						Tokens: tks,
  1240  					},
  1241  					Tokens: tks,
  1242  				},
  1243  				Tokens: tks,
  1244  			},
  1245  			Tokens: tks,
  1246  		},
  1247  		&BitwiseORExpression{ // 31
  1248  			BitwiseXORExpression: BitwiseXORExpression{
  1249  				BitwiseANDExpression: BitwiseANDExpression{
  1250  					EqualityExpression: EqualityExpression{
  1251  						RelationalExpression: RelationalExpression{
  1252  							ShiftExpression: ShiftExpression{
  1253  								AdditiveExpression: AdditiveExpression{
  1254  									MultiplicativeExpression: MultiplicativeExpression{
  1255  										ExponentiationExpression: ExponentiationExpression{
  1256  											UnaryExpression: UnaryExpression{
  1257  												UpdateExpression: UpdateExpression{
  1258  													LeftHandSideExpression: &LeftHandSideExpression{
  1259  														NewExpression: &NewExpression{
  1260  															MemberExpression: MemberExpression{
  1261  																PrimaryExpression: &PrimaryExpression{
  1262  																	TemplateLiteral: template,
  1263  																	Tokens:          tks,
  1264  																},
  1265  																Tokens: tks,
  1266  															},
  1267  															Tokens: tks,
  1268  														},
  1269  														Tokens: tks,
  1270  													},
  1271  													Tokens: tks,
  1272  												},
  1273  												Tokens: tks,
  1274  											},
  1275  											Tokens: tks,
  1276  										},
  1277  										Tokens: tks,
  1278  									},
  1279  									Tokens: tks,
  1280  								},
  1281  								Tokens: tks,
  1282  							},
  1283  							Tokens: tks,
  1284  						},
  1285  						Tokens: tks,
  1286  					},
  1287  					Tokens: tks,
  1288  				},
  1289  				Tokens: tks,
  1290  			},
  1291  			Tokens: tks,
  1292  		},
  1293  		BitwiseORExpression{ // 32
  1294  			BitwiseXORExpression: BitwiseXORExpression{
  1295  				BitwiseANDExpression: BitwiseANDExpression{
  1296  					EqualityExpression: EqualityExpression{
  1297  						RelationalExpression: RelationalExpression{
  1298  							ShiftExpression: ShiftExpression{
  1299  								AdditiveExpression: AdditiveExpression{
  1300  									MultiplicativeExpression: MultiplicativeExpression{
  1301  										ExponentiationExpression: ExponentiationExpression{
  1302  											UnaryExpression: UnaryExpression{
  1303  												UpdateExpression: UpdateExpression{
  1304  													LeftHandSideExpression: &LeftHandSideExpression{
  1305  														NewExpression: &NewExpression{
  1306  															MemberExpression: MemberExpression{
  1307  																PrimaryExpression: &PrimaryExpression{
  1308  																	TemplateLiteral: template,
  1309  																	Tokens:          tks,
  1310  																},
  1311  																Tokens: tks,
  1312  															},
  1313  															Tokens: tks,
  1314  														},
  1315  														Tokens: tks,
  1316  													},
  1317  													Tokens: tks,
  1318  												},
  1319  												Tokens: tks,
  1320  											},
  1321  											Tokens: tks,
  1322  										},
  1323  										Tokens: tks,
  1324  									},
  1325  									Tokens: tks,
  1326  								},
  1327  								Tokens: tks,
  1328  							},
  1329  							Tokens: tks,
  1330  						},
  1331  						Tokens: tks,
  1332  					},
  1333  					Tokens: tks,
  1334  				},
  1335  				Tokens: tks,
  1336  			},
  1337  			Tokens: tks,
  1338  		},
  1339  		&LogicalANDExpression{ // 33
  1340  			BitwiseORExpression: BitwiseORExpression{
  1341  				BitwiseXORExpression: BitwiseXORExpression{
  1342  					BitwiseANDExpression: BitwiseANDExpression{
  1343  						EqualityExpression: EqualityExpression{
  1344  							RelationalExpression: RelationalExpression{
  1345  								ShiftExpression: ShiftExpression{
  1346  									AdditiveExpression: AdditiveExpression{
  1347  										MultiplicativeExpression: MultiplicativeExpression{
  1348  											ExponentiationExpression: ExponentiationExpression{
  1349  												UnaryExpression: UnaryExpression{
  1350  													UpdateExpression: UpdateExpression{
  1351  														LeftHandSideExpression: &LeftHandSideExpression{
  1352  															NewExpression: &NewExpression{
  1353  																MemberExpression: MemberExpression{
  1354  																	PrimaryExpression: &PrimaryExpression{
  1355  																		TemplateLiteral: template,
  1356  																		Tokens:          tks,
  1357  																	},
  1358  																	Tokens: tks,
  1359  																},
  1360  																Tokens: tks,
  1361  															},
  1362  															Tokens: tks,
  1363  														},
  1364  														Tokens: tks,
  1365  													},
  1366  													Tokens: tks,
  1367  												},
  1368  												Tokens: tks,
  1369  											},
  1370  											Tokens: tks,
  1371  										},
  1372  										Tokens: tks,
  1373  									},
  1374  									Tokens: tks,
  1375  								},
  1376  								Tokens: tks,
  1377  							},
  1378  							Tokens: tks,
  1379  						},
  1380  						Tokens: tks,
  1381  					},
  1382  					Tokens: tks,
  1383  				},
  1384  				Tokens: tks,
  1385  			},
  1386  			Tokens: tks,
  1387  		},
  1388  		&LogicalANDExpression{ // 34
  1389  			BitwiseORExpression: BitwiseORExpression{
  1390  				BitwiseXORExpression: BitwiseXORExpression{
  1391  					BitwiseANDExpression: BitwiseANDExpression{
  1392  						EqualityExpression: EqualityExpression{
  1393  							RelationalExpression: RelationalExpression{
  1394  								ShiftExpression: ShiftExpression{
  1395  									AdditiveExpression: AdditiveExpression{
  1396  										MultiplicativeExpression: MultiplicativeExpression{
  1397  											ExponentiationExpression: ExponentiationExpression{
  1398  												UnaryExpression: UnaryExpression{
  1399  													UpdateExpression: UpdateExpression{
  1400  														LeftHandSideExpression: &LeftHandSideExpression{
  1401  															NewExpression: &NewExpression{
  1402  																MemberExpression: MemberExpression{
  1403  																	PrimaryExpression: &PrimaryExpression{
  1404  																		TemplateLiteral: template,
  1405  																		Tokens:          tks,
  1406  																	},
  1407  																	Tokens: tks,
  1408  																},
  1409  																Tokens: tks,
  1410  															},
  1411  															Tokens: tks,
  1412  														},
  1413  														Tokens: tks,
  1414  													},
  1415  													Tokens: tks,
  1416  												},
  1417  												Tokens: tks,
  1418  											},
  1419  											Tokens: tks,
  1420  										},
  1421  										Tokens: tks,
  1422  									},
  1423  									Tokens: tks,
  1424  								},
  1425  								Tokens: tks,
  1426  							},
  1427  							Tokens: tks,
  1428  						},
  1429  						Tokens: tks,
  1430  					},
  1431  					Tokens: tks,
  1432  				},
  1433  				Tokens: tks,
  1434  			},
  1435  			Tokens: tks,
  1436  		},
  1437  		&LogicalORExpression{ // 35
  1438  			LogicalANDExpression: LogicalANDExpression{
  1439  				BitwiseORExpression: BitwiseORExpression{
  1440  					BitwiseXORExpression: BitwiseXORExpression{
  1441  						BitwiseANDExpression: BitwiseANDExpression{
  1442  							EqualityExpression: EqualityExpression{
  1443  								RelationalExpression: RelationalExpression{
  1444  									ShiftExpression: ShiftExpression{
  1445  										AdditiveExpression: AdditiveExpression{
  1446  											MultiplicativeExpression: MultiplicativeExpression{
  1447  												ExponentiationExpression: ExponentiationExpression{
  1448  													UnaryExpression: UnaryExpression{
  1449  														UpdateExpression: UpdateExpression{
  1450  															LeftHandSideExpression: &LeftHandSideExpression{
  1451  																NewExpression: &NewExpression{
  1452  																	MemberExpression: MemberExpression{
  1453  																		PrimaryExpression: &PrimaryExpression{
  1454  																			TemplateLiteral: template,
  1455  																			Tokens:          tks,
  1456  																		},
  1457  																		Tokens: tks,
  1458  																	},
  1459  																	Tokens: tks,
  1460  																},
  1461  																Tokens: tks,
  1462  															},
  1463  															Tokens: tks,
  1464  														},
  1465  														Tokens: tks,
  1466  													},
  1467  													Tokens: tks,
  1468  												},
  1469  												Tokens: tks,
  1470  											},
  1471  											Tokens: tks,
  1472  										},
  1473  										Tokens: tks,
  1474  									},
  1475  									Tokens: tks,
  1476  								},
  1477  								Tokens: tks,
  1478  							},
  1479  							Tokens: tks,
  1480  						},
  1481  						Tokens: tks,
  1482  					},
  1483  					Tokens: tks,
  1484  				},
  1485  				Tokens: tks,
  1486  			},
  1487  			Tokens: tks,
  1488  		},
  1489  		LogicalORExpression{ // 36
  1490  			LogicalANDExpression: LogicalANDExpression{
  1491  				BitwiseORExpression: BitwiseORExpression{
  1492  					BitwiseXORExpression: BitwiseXORExpression{
  1493  						BitwiseANDExpression: BitwiseANDExpression{
  1494  							EqualityExpression: EqualityExpression{
  1495  								RelationalExpression: RelationalExpression{
  1496  									ShiftExpression: ShiftExpression{
  1497  										AdditiveExpression: AdditiveExpression{
  1498  											MultiplicativeExpression: MultiplicativeExpression{
  1499  												ExponentiationExpression: ExponentiationExpression{
  1500  													UnaryExpression: UnaryExpression{
  1501  														UpdateExpression: UpdateExpression{
  1502  															LeftHandSideExpression: &LeftHandSideExpression{
  1503  																NewExpression: &NewExpression{
  1504  																	MemberExpression: MemberExpression{
  1505  																		PrimaryExpression: &PrimaryExpression{
  1506  																			TemplateLiteral: template,
  1507  																			Tokens:          tks,
  1508  																		},
  1509  																		Tokens: tks,
  1510  																	},
  1511  																	Tokens: tks,
  1512  																},
  1513  																Tokens: tks,
  1514  															},
  1515  															Tokens: tks,
  1516  														},
  1517  														Tokens: tks,
  1518  													},
  1519  													Tokens: tks,
  1520  												},
  1521  												Tokens: tks,
  1522  											},
  1523  											Tokens: tks,
  1524  										},
  1525  										Tokens: tks,
  1526  									},
  1527  									Tokens: tks,
  1528  								},
  1529  								Tokens: tks,
  1530  							},
  1531  							Tokens: tks,
  1532  						},
  1533  						Tokens: tks,
  1534  					},
  1535  					Tokens: tks,
  1536  				},
  1537  				Tokens: tks,
  1538  			},
  1539  			Tokens: tks,
  1540  		},
  1541  		&ConditionalExpression{ // 37
  1542  			LogicalORExpression: &LogicalORExpression{
  1543  				LogicalANDExpression: LogicalANDExpression{
  1544  					BitwiseORExpression: BitwiseORExpression{
  1545  						BitwiseXORExpression: BitwiseXORExpression{
  1546  							BitwiseANDExpression: BitwiseANDExpression{
  1547  								EqualityExpression: EqualityExpression{
  1548  									RelationalExpression: RelationalExpression{
  1549  										ShiftExpression: ShiftExpression{
  1550  											AdditiveExpression: AdditiveExpression{
  1551  												MultiplicativeExpression: MultiplicativeExpression{
  1552  													ExponentiationExpression: ExponentiationExpression{
  1553  														UnaryExpression: UnaryExpression{
  1554  															UpdateExpression: UpdateExpression{
  1555  																LeftHandSideExpression: &LeftHandSideExpression{
  1556  																	NewExpression: &NewExpression{
  1557  																		MemberExpression: MemberExpression{
  1558  																			PrimaryExpression: &PrimaryExpression{
  1559  																				TemplateLiteral: template,
  1560  																				Tokens:          tks,
  1561  																			},
  1562  																			Tokens: tks,
  1563  																		},
  1564  																		Tokens: tks,
  1565  																	},
  1566  																	Tokens: tks,
  1567  																},
  1568  																Tokens: tks,
  1569  															},
  1570  															Tokens: tks,
  1571  														},
  1572  														Tokens: tks,
  1573  													},
  1574  													Tokens: tks,
  1575  												},
  1576  												Tokens: tks,
  1577  											},
  1578  											Tokens: tks,
  1579  										},
  1580  										Tokens: tks,
  1581  									},
  1582  									Tokens: tks,
  1583  								},
  1584  								Tokens: tks,
  1585  							},
  1586  							Tokens: tks,
  1587  						},
  1588  						Tokens: tks,
  1589  					},
  1590  					Tokens: tks,
  1591  				},
  1592  				Tokens: tks,
  1593  			},
  1594  			Tokens: tks,
  1595  		},
  1596  		ConditionalExpression{ // 38
  1597  			LogicalORExpression: &LogicalORExpression{
  1598  				LogicalANDExpression: LogicalANDExpression{
  1599  					BitwiseORExpression: BitwiseORExpression{
  1600  						BitwiseXORExpression: BitwiseXORExpression{
  1601  							BitwiseANDExpression: BitwiseANDExpression{
  1602  								EqualityExpression: EqualityExpression{
  1603  									RelationalExpression: RelationalExpression{
  1604  										ShiftExpression: ShiftExpression{
  1605  											AdditiveExpression: AdditiveExpression{
  1606  												MultiplicativeExpression: MultiplicativeExpression{
  1607  													ExponentiationExpression: ExponentiationExpression{
  1608  														UnaryExpression: UnaryExpression{
  1609  															UpdateExpression: UpdateExpression{
  1610  																LeftHandSideExpression: &LeftHandSideExpression{
  1611  																	NewExpression: &NewExpression{
  1612  																		MemberExpression: MemberExpression{
  1613  																			PrimaryExpression: &PrimaryExpression{
  1614  																				TemplateLiteral: template,
  1615  																				Tokens:          tks,
  1616  																			},
  1617  																			Tokens: tks,
  1618  																		},
  1619  																		Tokens: tks,
  1620  																	},
  1621  																	Tokens: tks,
  1622  																},
  1623  																Tokens: tks,
  1624  															},
  1625  															Tokens: tks,
  1626  														},
  1627  														Tokens: tks,
  1628  													},
  1629  													Tokens: tks,
  1630  												},
  1631  												Tokens: tks,
  1632  											},
  1633  											Tokens: tks,
  1634  										},
  1635  										Tokens: tks,
  1636  									},
  1637  									Tokens: tks,
  1638  								},
  1639  								Tokens: tks,
  1640  							},
  1641  							Tokens: tks,
  1642  						},
  1643  						Tokens: tks,
  1644  					},
  1645  					Tokens: tks,
  1646  				},
  1647  				Tokens: tks,
  1648  			},
  1649  			Tokens: tks,
  1650  		},
  1651  	} {
  1652  		if output := WrapConditional(test); !reflect.DeepEqual(output, &expectedOutput) {
  1653  			t.Errorf("test %d: expecting\n%v\n...got...\n%v", n+1, expectedOutput, output)
  1654  		}
  1655  	}
  1656  }
  1657  
  1658  func TestWrapConditionalExtra(t *testing.T) {
  1659  	arrayTokens := Tokens{
  1660  		{
  1661  			Token: parser.Token{
  1662  				Type: TokenPunctuator,
  1663  				Data: "[",
  1664  			},
  1665  		},
  1666  		{
  1667  			Token: parser.Token{
  1668  				Type: TokenIdentifier,
  1669  				Data: "a",
  1670  			},
  1671  		},
  1672  		{
  1673  			Token: parser.Token{
  1674  				Type: TokenPunctuator,
  1675  				Data: "]",
  1676  			},
  1677  		},
  1678  	}
  1679  	arrayLiteral := &ArrayLiteral{
  1680  		ElementList: []ArrayElement{
  1681  			{
  1682  				AssignmentExpression: AssignmentExpression{
  1683  					ConditionalExpression: WrapConditional(&PrimaryExpression{
  1684  						IdentifierReference: &arrayTokens[1],
  1685  						Tokens:              arrayTokens[1:2],
  1686  					}),
  1687  					Tokens: arrayTokens[1:2],
  1688  				},
  1689  				Tokens: arrayTokens[1:2],
  1690  			},
  1691  		},
  1692  		Tokens: arrayTokens,
  1693  	}
  1694  	objectTokens := Tokens{
  1695  		{
  1696  			Token: parser.Token{
  1697  				Type: TokenPunctuator,
  1698  				Data: "{",
  1699  			},
  1700  		},
  1701  		{
  1702  			Token: parser.Token{
  1703  				Type: TokenPunctuator,
  1704  				Data: "...",
  1705  			},
  1706  		},
  1707  		{
  1708  			Token: parser.Token{
  1709  				Type: TokenIdentifier,
  1710  				Data: "a",
  1711  			},
  1712  		},
  1713  		{
  1714  			Token: parser.Token{
  1715  				Type: TokenRightBracePunctuator,
  1716  				Data: "}",
  1717  			},
  1718  		},
  1719  	}
  1720  	objectLiteral := &ObjectLiteral{
  1721  		PropertyDefinitionList: []PropertyDefinition{
  1722  			{
  1723  				AssignmentExpression: &AssignmentExpression{
  1724  					ConditionalExpression: WrapConditional(&PrimaryExpression{
  1725  						IdentifierReference: &arrayTokens[2],
  1726  						Tokens:              arrayTokens[2:3],
  1727  					}),
  1728  					Tokens: arrayTokens[2:3],
  1729  				},
  1730  				Tokens: arrayTokens[2:3],
  1731  			},
  1732  		},
  1733  		Tokens: objectTokens,
  1734  	}
  1735  	functionTokens := Tokens{
  1736  		{
  1737  			Token: parser.Token{
  1738  				Type: TokenKeyword,
  1739  				Data: "function",
  1740  			},
  1741  		},
  1742  		{
  1743  			Token: parser.Token{
  1744  				Type: TokenPunctuator,
  1745  				Data: "(",
  1746  			},
  1747  		},
  1748  		{
  1749  			Token: parser.Token{
  1750  				Type: TokenPunctuator,
  1751  				Data: ")",
  1752  			},
  1753  		},
  1754  		{
  1755  			Token: parser.Token{
  1756  				Type: TokenPunctuator,
  1757  				Data: "{",
  1758  			},
  1759  		},
  1760  		{
  1761  			Token: parser.Token{
  1762  				Type: TokenRightBracePunctuator,
  1763  				Data: "}",
  1764  			},
  1765  		},
  1766  	}
  1767  	functionDeclaration := &FunctionDeclaration{
  1768  		FormalParameters: FormalParameters{
  1769  			Tokens: functionTokens[1:3],
  1770  		},
  1771  		FunctionBody: Block{
  1772  			Tokens: functionTokens[3:5],
  1773  		},
  1774  		Tokens: functionTokens,
  1775  	}
  1776  	classTokens := Tokens{
  1777  		{
  1778  			Token: parser.Token{
  1779  				Type: TokenKeyword,
  1780  				Data: "class",
  1781  			},
  1782  		},
  1783  		{
  1784  			Token: parser.Token{
  1785  				Type: TokenPunctuator,
  1786  				Data: "{",
  1787  			},
  1788  		},
  1789  		{
  1790  			Token: parser.Token{
  1791  				Type: TokenRightBracePunctuator,
  1792  				Data: "}",
  1793  			},
  1794  		},
  1795  	}
  1796  	classDeclaration := &ClassDeclaration{
  1797  		Tokens: classTokens,
  1798  	}
  1799  	parenthesizedTokens := Tokens{
  1800  		{
  1801  			Token: parser.Token{
  1802  				Type: TokenPunctuator,
  1803  				Data: "(",
  1804  			},
  1805  		},
  1806  		{
  1807  			Token: parser.Token{
  1808  				Type: TokenIdentifier,
  1809  				Data: "a",
  1810  			},
  1811  		},
  1812  		{
  1813  			Token: parser.Token{
  1814  				Type: TokenPunctuator,
  1815  				Data: ")",
  1816  			},
  1817  		},
  1818  	}
  1819  	parenthesizedExpression := &ParenthesizedExpression{
  1820  		Expressions: []AssignmentExpression{
  1821  			{
  1822  				ConditionalExpression: WrapConditional(&PrimaryExpression{
  1823  					IdentifierReference: &arrayTokens[1],
  1824  					Tokens:              parenthesizedTokens[1:2],
  1825  				}),
  1826  				Tokens: parenthesizedTokens[1:2],
  1827  			},
  1828  		},
  1829  		Tokens: parenthesizedTokens,
  1830  	}
  1831  	callTokens := Tokens{
  1832  		{
  1833  			Token: parser.Token{
  1834  				Type: TokenIdentifier,
  1835  				Data: "a",
  1836  			},
  1837  		},
  1838  		{
  1839  			Token: parser.Token{
  1840  				Type: TokenPunctuator,
  1841  				Data: "(",
  1842  			},
  1843  		},
  1844  		{
  1845  			Token: parser.Token{
  1846  				Type: TokenIdentifier,
  1847  				Data: "b",
  1848  			},
  1849  		},
  1850  		{
  1851  			Token: parser.Token{
  1852  				Type: TokenPunctuator,
  1853  				Data: ")",
  1854  			},
  1855  		},
  1856  	}
  1857  	callExpression := &CallExpression{
  1858  		CallExpression: &CallExpression{
  1859  			MemberExpression: &MemberExpression{
  1860  				PrimaryExpression: &PrimaryExpression{
  1861  					IdentifierReference: &callTokens[0],
  1862  					Tokens:              callTokens[:1],
  1863  				},
  1864  				Tokens: callTokens[:1],
  1865  			},
  1866  			Tokens: callTokens[:1],
  1867  		},
  1868  		Arguments: &Arguments{
  1869  			ArgumentList: []Argument{
  1870  				{
  1871  					AssignmentExpression: AssignmentExpression{
  1872  						ConditionalExpression: WrapConditional(&PrimaryExpression{
  1873  							IdentifierReference: &callTokens[2],
  1874  							Tokens:              callTokens[2:3],
  1875  						}),
  1876  						Tokens: callTokens[2:3],
  1877  					},
  1878  					Tokens: callTokens[2:3],
  1879  				},
  1880  			},
  1881  			Tokens: callTokens[1:4],
  1882  		},
  1883  		Tokens: callTokens[:4],
  1884  	}
  1885  	optionalTokens := Tokens{
  1886  		{
  1887  			Token: parser.Token{
  1888  				Type: TokenIdentifier,
  1889  				Data: "a",
  1890  			},
  1891  		},
  1892  		{
  1893  			Token: parser.Token{
  1894  				Type: TokenPunctuator,
  1895  				Data: "?.",
  1896  			},
  1897  		},
  1898  		{
  1899  			Token: parser.Token{
  1900  				Type: TokenIdentifier,
  1901  				Data: "b",
  1902  			},
  1903  		},
  1904  	}
  1905  	optionalExpression := &OptionalExpression{
  1906  		OptionalExpression: &OptionalExpression{
  1907  			MemberExpression: &MemberExpression{
  1908  				PrimaryExpression: &PrimaryExpression{
  1909  					IdentifierReference: &optionalTokens[0],
  1910  					Tokens:              optionalTokens[:1],
  1911  				},
  1912  				Tokens: optionalTokens[:1],
  1913  			},
  1914  			Tokens: optionalTokens[:1],
  1915  		},
  1916  		OptionalChain: OptionalChain{
  1917  			IdentifierName: &optionalTokens[2],
  1918  			Tokens:         optionalTokens[2:3],
  1919  		},
  1920  		Tokens: optionalTokens[:3],
  1921  	}
  1922  
  1923  	for n, test := range [...]struct {
  1924  		inner ConditionalWrappable
  1925  		outer ConditionalWrappable
  1926  	}{
  1927  		{ // 1
  1928  			arrayLiteral,
  1929  			&PrimaryExpression{
  1930  				ArrayLiteral: arrayLiteral,
  1931  				Tokens:       arrayTokens,
  1932  			},
  1933  		},
  1934  		{ // 2
  1935  			*arrayLiteral,
  1936  			&PrimaryExpression{
  1937  				ArrayLiteral: arrayLiteral,
  1938  				Tokens:       arrayTokens,
  1939  			},
  1940  		},
  1941  		{ // 3
  1942  			objectLiteral,
  1943  			&PrimaryExpression{
  1944  				ObjectLiteral: objectLiteral,
  1945  				Tokens:        objectTokens,
  1946  			},
  1947  		},
  1948  		{ // 4
  1949  			*objectLiteral,
  1950  			&PrimaryExpression{
  1951  				ObjectLiteral: objectLiteral,
  1952  				Tokens:        objectTokens,
  1953  			},
  1954  		},
  1955  		{ // 5
  1956  			functionDeclaration,
  1957  			&PrimaryExpression{
  1958  				FunctionExpression: functionDeclaration,
  1959  				Tokens:             functionTokens,
  1960  			},
  1961  		},
  1962  		{ // 6
  1963  			*functionDeclaration,
  1964  			&PrimaryExpression{
  1965  				FunctionExpression: functionDeclaration,
  1966  				Tokens:             functionTokens,
  1967  			},
  1968  		},
  1969  		{ // 7
  1970  			classDeclaration,
  1971  			&PrimaryExpression{
  1972  				ClassExpression: classDeclaration,
  1973  				Tokens:          classTokens,
  1974  			},
  1975  		},
  1976  		{ // 8
  1977  			*classDeclaration,
  1978  			&PrimaryExpression{
  1979  				ClassExpression: classDeclaration,
  1980  				Tokens:          classTokens,
  1981  			},
  1982  		},
  1983  		{ // 9
  1984  			parenthesizedExpression,
  1985  			&PrimaryExpression{
  1986  				ParenthesizedExpression: parenthesizedExpression,
  1987  				Tokens:                  parenthesizedTokens,
  1988  			},
  1989  		},
  1990  		{ // 10
  1991  			*parenthesizedExpression,
  1992  			&PrimaryExpression{
  1993  				ParenthesizedExpression: parenthesizedExpression,
  1994  				Tokens:                  parenthesizedTokens,
  1995  			},
  1996  		},
  1997  		{ // 11
  1998  			callExpression,
  1999  			&LeftHandSideExpression{
  2000  				CallExpression: callExpression,
  2001  				Tokens:         callTokens,
  2002  			},
  2003  		},
  2004  		{ // 12
  2005  			*callExpression,
  2006  			&LeftHandSideExpression{
  2007  				CallExpression: callExpression,
  2008  				Tokens:         callTokens,
  2009  			},
  2010  		},
  2011  		{ // 13
  2012  			optionalExpression,
  2013  			&LeftHandSideExpression{
  2014  				OptionalExpression: optionalExpression,
  2015  				Tokens:             optionalTokens,
  2016  			},
  2017  		},
  2018  		{ // 14
  2019  			*optionalExpression,
  2020  			&LeftHandSideExpression{
  2021  				OptionalExpression: optionalExpression,
  2022  				Tokens:             optionalTokens,
  2023  			},
  2024  		},
  2025  	} {
  2026  		if output, expectedOutput := WrapConditional(test.inner), WrapConditional(test.outer); !reflect.DeepEqual(output, expectedOutput) {
  2027  			t.Errorf("test %d: expecting\n%v\n...got...\n%v", n+1, expectedOutput, output)
  2028  		}
  2029  	}
  2030  }
  2031  
  2032  func TestUnwrapConditional(t *testing.T) {
  2033  	tks := Tokens{
  2034  		{
  2035  			Token: parser.Token{
  2036  				Type: TokenIdentifier,
  2037  				Data: "a",
  2038  			},
  2039  		},
  2040  		{
  2041  			Token: parser.Token{
  2042  				Type: TokenIdentifier,
  2043  				Data: "b",
  2044  			},
  2045  		},
  2046  	}
  2047  	identA := &tks[0]
  2048  	identB := &tks[1]
  2049  
  2050  	for n, test := range [...]ConditionalWrappable{
  2051  		&ParenthesizedExpression{ // 1
  2052  			Expressions: []AssignmentExpression{
  2053  				{
  2054  					ConditionalExpression: WrapConditional(&PrimaryExpression{
  2055  						IdentifierReference: identA,
  2056  						Tokens:              tks[:1],
  2057  					}),
  2058  					Tokens: tks[:1],
  2059  				},
  2060  			},
  2061  			Tokens: tks[:1],
  2062  		},
  2063  		&TemplateLiteral{ // 2
  2064  			NoSubstitutionTemplate: identA,
  2065  			Tokens:                 tks[:1],
  2066  		},
  2067  		&ClassDeclaration{ // 3
  2068  			BindingIdentifier: identA,
  2069  			Tokens:            tks[:1],
  2070  		},
  2071  		&FunctionDeclaration{ // 4
  2072  			BindingIdentifier: identA,
  2073  			Tokens:            tks[:1],
  2074  		},
  2075  		&ObjectLiteral{ // 5
  2076  			PropertyDefinitionList: []PropertyDefinition{
  2077  				{
  2078  					AssignmentExpression: &AssignmentExpression{
  2079  						ConditionalExpression: WrapConditional(&PrimaryExpression{
  2080  							IdentifierReference: identA,
  2081  							Tokens:              tks[:1],
  2082  						}),
  2083  						Tokens: tks[:1],
  2084  					},
  2085  					Tokens: tks[:1],
  2086  				},
  2087  			},
  2088  			Tokens: tks[:1],
  2089  		},
  2090  		&ArrayLiteral{ // 6
  2091  			ElementList: []ArrayElement{
  2092  				{
  2093  					AssignmentExpression: AssignmentExpression{
  2094  						ConditionalExpression: WrapConditional(&PrimaryExpression{
  2095  							IdentifierReference: identA,
  2096  							Tokens:              tks[:1],
  2097  						}),
  2098  						Tokens: tks[:1],
  2099  					},
  2100  					Tokens: tks[:1],
  2101  				},
  2102  			},
  2103  			Tokens: tks[:1],
  2104  		},
  2105  		&PrimaryExpression{ // 7
  2106  			IdentifierReference: identA,
  2107  			Tokens:              tks[:1],
  2108  		},
  2109  		&MemberExpression{ // 8
  2110  			MemberExpression: &MemberExpression{
  2111  				PrimaryExpression: &PrimaryExpression{
  2112  					IdentifierReference: identA,
  2113  					Tokens:              tks[:1],
  2114  				},
  2115  			},
  2116  			IdentifierName: identB,
  2117  			Tokens:         tks,
  2118  		},
  2119  		&NewExpression{ // 9
  2120  			News: []Comments{nil},
  2121  			MemberExpression: MemberExpression{
  2122  				PrimaryExpression: &PrimaryExpression{
  2123  					IdentifierReference: identA,
  2124  					Tokens:              tks[:1],
  2125  				},
  2126  				Tokens: tks[:1],
  2127  			},
  2128  			Tokens: tks[:1],
  2129  		},
  2130  		&CallExpression{ // 10
  2131  			CallExpression: &CallExpression{
  2132  				MemberExpression: &MemberExpression{
  2133  					PrimaryExpression: &PrimaryExpression{
  2134  						IdentifierReference: identA,
  2135  						Tokens:              tks[:1],
  2136  					},
  2137  				},
  2138  				Tokens: tks[:1],
  2139  			},
  2140  			Arguments: &Arguments{
  2141  				ArgumentList: []Argument{
  2142  					{
  2143  						AssignmentExpression: AssignmentExpression{
  2144  							ConditionalExpression: WrapConditional(&PrimaryExpression{
  2145  								IdentifierReference: identB,
  2146  								Tokens:              tks[1:2],
  2147  							}),
  2148  							Tokens: tks[1:2],
  2149  						},
  2150  						Tokens: tks[1:2],
  2151  					},
  2152  				},
  2153  				Tokens: tks[1:2],
  2154  			},
  2155  			Tokens: tks[:2],
  2156  		},
  2157  		&OptionalExpression{ // 11
  2158  			OptionalExpression: &OptionalExpression{
  2159  				MemberExpression: &MemberExpression{
  2160  					PrimaryExpression: &PrimaryExpression{
  2161  						IdentifierReference: identA,
  2162  						Tokens:              tks[:1],
  2163  					},
  2164  				},
  2165  				Tokens: tks[:1],
  2166  			},
  2167  			OptionalChain: OptionalChain{
  2168  				IdentifierName: identB,
  2169  				Tokens:         tks[1:2],
  2170  			},
  2171  			Tokens: tks[:2],
  2172  		},
  2173  		&UpdateExpression{ // 12
  2174  			UpdateOperator: UpdatePostIncrement,
  2175  			UnaryExpression: &UnaryExpression{
  2176  				UpdateExpression: UpdateExpression{
  2177  					LeftHandSideExpression: &LeftHandSideExpression{
  2178  						NewExpression: &NewExpression{
  2179  							MemberExpression: MemberExpression{
  2180  								PrimaryExpression: &PrimaryExpression{
  2181  									IdentifierReference: identA,
  2182  									Tokens:              tks[:1],
  2183  								},
  2184  								Tokens: tks[:1],
  2185  							},
  2186  							Tokens: tks[:1],
  2187  						},
  2188  						Tokens: tks[:1],
  2189  					},
  2190  					Tokens: tks[:1],
  2191  				},
  2192  				Tokens: tks[:1],
  2193  			},
  2194  			Tokens: tks[:1],
  2195  		},
  2196  		&UnaryExpression{ // 13
  2197  			UnaryOperators: []UnaryOperatorComments{{UnaryOperator: UnaryVoid}},
  2198  			UpdateExpression: UpdateExpression{
  2199  				LeftHandSideExpression: &LeftHandSideExpression{
  2200  					NewExpression: &NewExpression{
  2201  						MemberExpression: MemberExpression{
  2202  							PrimaryExpression: &PrimaryExpression{
  2203  								IdentifierReference: identA,
  2204  								Tokens:              tks[:1],
  2205  							},
  2206  							Tokens: tks[:1],
  2207  						},
  2208  						Tokens: tks[:1],
  2209  					},
  2210  					Tokens: tks[:1],
  2211  				},
  2212  				Tokens: tks[:1],
  2213  			},
  2214  			Tokens: tks[:1],
  2215  		},
  2216  		&ExponentiationExpression{ // 14
  2217  			ExponentiationExpression: &ExponentiationExpression{
  2218  				UnaryExpression: UnaryExpression{
  2219  					UpdateExpression: UpdateExpression{
  2220  						LeftHandSideExpression: &LeftHandSideExpression{
  2221  							NewExpression: &NewExpression{
  2222  								MemberExpression: MemberExpression{
  2223  									PrimaryExpression: &PrimaryExpression{
  2224  										IdentifierReference: identA,
  2225  										Tokens:              tks[:1],
  2226  									},
  2227  									Tokens: tks[:1],
  2228  								},
  2229  								Tokens: tks[:1],
  2230  							},
  2231  							Tokens: tks[:1],
  2232  						},
  2233  						Tokens: tks[:1],
  2234  					},
  2235  					Tokens: tks[:1],
  2236  				},
  2237  				Tokens: tks[:1],
  2238  			},
  2239  			UnaryExpression: UnaryExpression{
  2240  				UpdateExpression: UpdateExpression{
  2241  					LeftHandSideExpression: &LeftHandSideExpression{
  2242  						NewExpression: &NewExpression{
  2243  							MemberExpression: MemberExpression{
  2244  								PrimaryExpression: &PrimaryExpression{
  2245  									IdentifierReference: identB,
  2246  									Tokens:              tks[1:2],
  2247  								},
  2248  								Tokens: tks[1:2],
  2249  							},
  2250  							Tokens: tks[1:2],
  2251  						},
  2252  						Tokens: tks[1:2],
  2253  					},
  2254  					Tokens: tks[1:2],
  2255  				},
  2256  				Tokens: tks[1:2],
  2257  			},
  2258  			Tokens: tks[:2],
  2259  		},
  2260  		&MultiplicativeExpression{ // 15
  2261  			MultiplicativeExpression: &MultiplicativeExpression{
  2262  				ExponentiationExpression: ExponentiationExpression{
  2263  					UnaryExpression: UnaryExpression{
  2264  						UpdateExpression: UpdateExpression{
  2265  							LeftHandSideExpression: &LeftHandSideExpression{
  2266  								NewExpression: &NewExpression{
  2267  									MemberExpression: MemberExpression{
  2268  										PrimaryExpression: &PrimaryExpression{
  2269  											IdentifierReference: identA,
  2270  											Tokens:              tks[:1],
  2271  										},
  2272  										Tokens: tks[:1],
  2273  									},
  2274  									Tokens: tks[:1],
  2275  								},
  2276  								Tokens: tks[:1],
  2277  							},
  2278  							Tokens: tks[:1],
  2279  						},
  2280  						Tokens: tks[:1],
  2281  					},
  2282  					Tokens: tks[:1],
  2283  				},
  2284  				Tokens: tks[:1],
  2285  			},
  2286  			ExponentiationExpression: ExponentiationExpression{
  2287  				UnaryExpression: UnaryExpression{
  2288  					UpdateExpression: UpdateExpression{
  2289  						LeftHandSideExpression: &LeftHandSideExpression{
  2290  							NewExpression: &NewExpression{
  2291  								MemberExpression: MemberExpression{
  2292  									PrimaryExpression: &PrimaryExpression{
  2293  										IdentifierReference: identB,
  2294  										Tokens:              tks[1:2],
  2295  									},
  2296  									Tokens: tks[1:2],
  2297  								},
  2298  								Tokens: tks[1:2],
  2299  							},
  2300  							Tokens: tks[1:2],
  2301  						},
  2302  						Tokens: tks[1:2],
  2303  					},
  2304  					Tokens: tks[1:2],
  2305  				},
  2306  				Tokens: tks[1:2],
  2307  			},
  2308  			Tokens: tks[:2],
  2309  		},
  2310  		&AdditiveExpression{ // 16
  2311  			AdditiveExpression: &AdditiveExpression{
  2312  				MultiplicativeExpression: MultiplicativeExpression{
  2313  					ExponentiationExpression: ExponentiationExpression{
  2314  						UnaryExpression: UnaryExpression{
  2315  							UpdateExpression: UpdateExpression{
  2316  								LeftHandSideExpression: &LeftHandSideExpression{
  2317  									NewExpression: &NewExpression{
  2318  										MemberExpression: MemberExpression{
  2319  											PrimaryExpression: &PrimaryExpression{
  2320  												IdentifierReference: identA,
  2321  												Tokens:              tks[:1],
  2322  											},
  2323  											Tokens: tks[:1],
  2324  										},
  2325  										Tokens: tks[:1],
  2326  									},
  2327  									Tokens: tks[:1],
  2328  								},
  2329  								Tokens: tks[:1],
  2330  							},
  2331  							Tokens: tks[:1],
  2332  						},
  2333  						Tokens: tks[:1],
  2334  					},
  2335  					Tokens: tks[:1],
  2336  				},
  2337  				Tokens: tks[:1],
  2338  			},
  2339  			MultiplicativeExpression: MultiplicativeExpression{
  2340  				ExponentiationExpression: ExponentiationExpression{
  2341  					UnaryExpression: UnaryExpression{
  2342  						UpdateExpression: UpdateExpression{
  2343  							LeftHandSideExpression: &LeftHandSideExpression{
  2344  								NewExpression: &NewExpression{
  2345  									MemberExpression: MemberExpression{
  2346  										PrimaryExpression: &PrimaryExpression{
  2347  											IdentifierReference: identB,
  2348  											Tokens:              tks[1:2],
  2349  										},
  2350  										Tokens: tks[1:2],
  2351  									},
  2352  									Tokens: tks[1:2],
  2353  								},
  2354  								Tokens: tks[1:2],
  2355  							},
  2356  							Tokens: tks[1:2],
  2357  						},
  2358  						Tokens: tks[1:2],
  2359  					},
  2360  					Tokens: tks[1:2],
  2361  				},
  2362  				Tokens: tks[1:2],
  2363  			},
  2364  			Tokens: tks[:2],
  2365  		},
  2366  		&ShiftExpression{ // 17
  2367  			ShiftExpression: &ShiftExpression{
  2368  				AdditiveExpression: AdditiveExpression{
  2369  					MultiplicativeExpression: MultiplicativeExpression{
  2370  						ExponentiationExpression: ExponentiationExpression{
  2371  							UnaryExpression: UnaryExpression{
  2372  								UpdateExpression: UpdateExpression{
  2373  									LeftHandSideExpression: &LeftHandSideExpression{
  2374  										NewExpression: &NewExpression{
  2375  											MemberExpression: MemberExpression{
  2376  												PrimaryExpression: &PrimaryExpression{
  2377  													IdentifierReference: identA,
  2378  													Tokens:              tks[:1],
  2379  												},
  2380  												Tokens: tks[:1],
  2381  											},
  2382  											Tokens: tks[:1],
  2383  										},
  2384  										Tokens: tks[:1],
  2385  									},
  2386  									Tokens: tks[:1],
  2387  								},
  2388  								Tokens: tks[:1],
  2389  							},
  2390  							Tokens: tks[:1],
  2391  						},
  2392  						Tokens: tks[:1],
  2393  					},
  2394  					Tokens: tks[:1],
  2395  				},
  2396  				Tokens: tks[:1],
  2397  			},
  2398  			AdditiveExpression: AdditiveExpression{
  2399  				MultiplicativeExpression: MultiplicativeExpression{
  2400  					ExponentiationExpression: ExponentiationExpression{
  2401  						UnaryExpression: UnaryExpression{
  2402  							UpdateExpression: UpdateExpression{
  2403  								LeftHandSideExpression: &LeftHandSideExpression{
  2404  									NewExpression: &NewExpression{
  2405  										MemberExpression: MemberExpression{
  2406  											PrimaryExpression: &PrimaryExpression{
  2407  												IdentifierReference: identB,
  2408  												Tokens:              tks[1:2],
  2409  											},
  2410  											Tokens: tks[1:2],
  2411  										},
  2412  										Tokens: tks[1:2],
  2413  									},
  2414  									Tokens: tks[1:2],
  2415  								},
  2416  								Tokens: tks[1:2],
  2417  							},
  2418  							Tokens: tks[1:2],
  2419  						},
  2420  						Tokens: tks[1:2],
  2421  					},
  2422  					Tokens: tks[1:2],
  2423  				},
  2424  				Tokens: tks[1:2],
  2425  			},
  2426  			Tokens: tks[:2],
  2427  		},
  2428  		&RelationalExpression{ // 18
  2429  			RelationalExpression: &RelationalExpression{
  2430  				ShiftExpression: ShiftExpression{
  2431  					AdditiveExpression: AdditiveExpression{
  2432  						MultiplicativeExpression: MultiplicativeExpression{
  2433  							ExponentiationExpression: ExponentiationExpression{
  2434  								UnaryExpression: UnaryExpression{
  2435  									UpdateExpression: UpdateExpression{
  2436  										LeftHandSideExpression: &LeftHandSideExpression{
  2437  											NewExpression: &NewExpression{
  2438  												MemberExpression: MemberExpression{
  2439  													PrimaryExpression: &PrimaryExpression{
  2440  														IdentifierReference: identA,
  2441  														Tokens:              tks[:1],
  2442  													},
  2443  													Tokens: tks[:1],
  2444  												},
  2445  												Tokens: tks[:1],
  2446  											},
  2447  											Tokens: tks[:1],
  2448  										},
  2449  										Tokens: tks[:1],
  2450  									},
  2451  									Tokens: tks[:1],
  2452  								},
  2453  								Tokens: tks[:1],
  2454  							},
  2455  							Tokens: tks[:1],
  2456  						},
  2457  						Tokens: tks[:1],
  2458  					},
  2459  					Tokens: tks[:1],
  2460  				},
  2461  				Tokens: tks[:1],
  2462  			},
  2463  			ShiftExpression: ShiftExpression{
  2464  				AdditiveExpression: AdditiveExpression{
  2465  					MultiplicativeExpression: MultiplicativeExpression{
  2466  						ExponentiationExpression: ExponentiationExpression{
  2467  							UnaryExpression: UnaryExpression{
  2468  								UpdateExpression: UpdateExpression{
  2469  									LeftHandSideExpression: &LeftHandSideExpression{
  2470  										NewExpression: &NewExpression{
  2471  											MemberExpression: MemberExpression{
  2472  												PrimaryExpression: &PrimaryExpression{
  2473  													IdentifierReference: identB,
  2474  													Tokens:              tks[1:2],
  2475  												},
  2476  												Tokens: tks[1:2],
  2477  											},
  2478  											Tokens: tks[1:2],
  2479  										},
  2480  										Tokens: tks[1:2],
  2481  									},
  2482  									Tokens: tks[1:2],
  2483  								},
  2484  								Tokens: tks[1:2],
  2485  							},
  2486  							Tokens: tks[1:2],
  2487  						},
  2488  						Tokens: tks[1:2],
  2489  					},
  2490  					Tokens: tks[1:2],
  2491  				},
  2492  				Tokens: tks[1:2],
  2493  			},
  2494  			Tokens: tks[:2],
  2495  		},
  2496  		&EqualityExpression{ // 19
  2497  			EqualityExpression: &EqualityExpression{
  2498  				RelationalExpression: RelationalExpression{
  2499  					ShiftExpression: ShiftExpression{
  2500  						AdditiveExpression: AdditiveExpression{
  2501  							MultiplicativeExpression: MultiplicativeExpression{
  2502  								ExponentiationExpression: ExponentiationExpression{
  2503  									UnaryExpression: UnaryExpression{
  2504  										UpdateExpression: UpdateExpression{
  2505  											LeftHandSideExpression: &LeftHandSideExpression{
  2506  												NewExpression: &NewExpression{
  2507  													MemberExpression: MemberExpression{
  2508  														PrimaryExpression: &PrimaryExpression{
  2509  															IdentifierReference: identA,
  2510  															Tokens:              tks[:1],
  2511  														},
  2512  														Tokens: tks[:1],
  2513  													},
  2514  													Tokens: tks[:1],
  2515  												},
  2516  												Tokens: tks[:1],
  2517  											},
  2518  											Tokens: tks[:1],
  2519  										},
  2520  										Tokens: tks[:1],
  2521  									},
  2522  									Tokens: tks[:1],
  2523  								},
  2524  								Tokens: tks[:1],
  2525  							},
  2526  							Tokens: tks[:1],
  2527  						},
  2528  						Tokens: tks[:1],
  2529  					},
  2530  					Tokens: tks[:1],
  2531  				},
  2532  				Tokens: tks[:1],
  2533  			},
  2534  			RelationalExpression: RelationalExpression{
  2535  				ShiftExpression: ShiftExpression{
  2536  					AdditiveExpression: AdditiveExpression{
  2537  						MultiplicativeExpression: MultiplicativeExpression{
  2538  							ExponentiationExpression: ExponentiationExpression{
  2539  								UnaryExpression: UnaryExpression{
  2540  									UpdateExpression: UpdateExpression{
  2541  										LeftHandSideExpression: &LeftHandSideExpression{
  2542  											NewExpression: &NewExpression{
  2543  												MemberExpression: MemberExpression{
  2544  													PrimaryExpression: &PrimaryExpression{
  2545  														IdentifierReference: identB,
  2546  														Tokens:              tks[1:2],
  2547  													},
  2548  													Tokens: tks[1:2],
  2549  												},
  2550  												Tokens: tks[1:2],
  2551  											},
  2552  											Tokens: tks[1:2],
  2553  										},
  2554  										Tokens: tks[1:2],
  2555  									},
  2556  									Tokens: tks[1:2],
  2557  								},
  2558  								Tokens: tks[1:2],
  2559  							},
  2560  							Tokens: tks[1:2],
  2561  						},
  2562  						Tokens: tks[1:2],
  2563  					},
  2564  					Tokens: tks[1:2],
  2565  				},
  2566  				Tokens: tks[1:2],
  2567  			},
  2568  			Tokens: tks[:2],
  2569  		},
  2570  		&BitwiseANDExpression{ // 20
  2571  			BitwiseANDExpression: &BitwiseANDExpression{
  2572  				EqualityExpression: EqualityExpression{
  2573  					RelationalExpression: RelationalExpression{
  2574  						ShiftExpression: ShiftExpression{
  2575  							AdditiveExpression: AdditiveExpression{
  2576  								MultiplicativeExpression: MultiplicativeExpression{
  2577  									ExponentiationExpression: ExponentiationExpression{
  2578  										UnaryExpression: UnaryExpression{
  2579  											UpdateExpression: UpdateExpression{
  2580  												LeftHandSideExpression: &LeftHandSideExpression{
  2581  													NewExpression: &NewExpression{
  2582  														MemberExpression: MemberExpression{
  2583  															PrimaryExpression: &PrimaryExpression{
  2584  																IdentifierReference: identA,
  2585  																Tokens:              tks[:1],
  2586  															},
  2587  															Tokens: tks[:1],
  2588  														},
  2589  														Tokens: tks[:1],
  2590  													},
  2591  													Tokens: tks[:1],
  2592  												},
  2593  												Tokens: tks[:1],
  2594  											},
  2595  											Tokens: tks[:1],
  2596  										},
  2597  										Tokens: tks[:1],
  2598  									},
  2599  									Tokens: tks[:1],
  2600  								},
  2601  								Tokens: tks[:1],
  2602  							},
  2603  							Tokens: tks[:1],
  2604  						},
  2605  						Tokens: tks[:1],
  2606  					},
  2607  					Tokens: tks[:1],
  2608  				},
  2609  				Tokens: tks[:1],
  2610  			},
  2611  			EqualityExpression: EqualityExpression{
  2612  				RelationalExpression: RelationalExpression{
  2613  					ShiftExpression: ShiftExpression{
  2614  						AdditiveExpression: AdditiveExpression{
  2615  							MultiplicativeExpression: MultiplicativeExpression{
  2616  								ExponentiationExpression: ExponentiationExpression{
  2617  									UnaryExpression: UnaryExpression{
  2618  										UpdateExpression: UpdateExpression{
  2619  											LeftHandSideExpression: &LeftHandSideExpression{
  2620  												NewExpression: &NewExpression{
  2621  													MemberExpression: MemberExpression{
  2622  														PrimaryExpression: &PrimaryExpression{
  2623  															IdentifierReference: identB,
  2624  															Tokens:              tks[1:2],
  2625  														},
  2626  														Tokens: tks[1:2],
  2627  													},
  2628  													Tokens: tks[1:2],
  2629  												},
  2630  												Tokens: tks[1:2],
  2631  											},
  2632  											Tokens: tks[1:2],
  2633  										},
  2634  										Tokens: tks[1:2],
  2635  									},
  2636  									Tokens: tks[1:2],
  2637  								},
  2638  								Tokens: tks[1:2],
  2639  							},
  2640  							Tokens: tks[1:2],
  2641  						},
  2642  						Tokens: tks[1:2],
  2643  					},
  2644  					Tokens: tks[1:2],
  2645  				},
  2646  				Tokens: tks[1:2],
  2647  			},
  2648  			Tokens: tks[:2],
  2649  		},
  2650  		&BitwiseXORExpression{ // 21
  2651  			BitwiseXORExpression: &BitwiseXORExpression{
  2652  				BitwiseANDExpression: BitwiseANDExpression{
  2653  					EqualityExpression: EqualityExpression{
  2654  						RelationalExpression: RelationalExpression{
  2655  							ShiftExpression: ShiftExpression{
  2656  								AdditiveExpression: AdditiveExpression{
  2657  									MultiplicativeExpression: MultiplicativeExpression{
  2658  										ExponentiationExpression: ExponentiationExpression{
  2659  											UnaryExpression: UnaryExpression{
  2660  												UpdateExpression: UpdateExpression{
  2661  													LeftHandSideExpression: &LeftHandSideExpression{
  2662  														NewExpression: &NewExpression{
  2663  															MemberExpression: MemberExpression{
  2664  																PrimaryExpression: &PrimaryExpression{
  2665  																	IdentifierReference: identA,
  2666  																	Tokens:              tks[:1],
  2667  																},
  2668  																Tokens: tks[:1],
  2669  															},
  2670  															Tokens: tks[:1],
  2671  														},
  2672  														Tokens: tks[:1],
  2673  													},
  2674  													Tokens: tks[:1],
  2675  												},
  2676  												Tokens: tks[:1],
  2677  											},
  2678  											Tokens: tks[:1],
  2679  										},
  2680  										Tokens: tks[:1],
  2681  									},
  2682  									Tokens: tks[:1],
  2683  								},
  2684  								Tokens: tks[:1],
  2685  							},
  2686  							Tokens: tks[:1],
  2687  						},
  2688  						Tokens: tks[:1],
  2689  					},
  2690  					Tokens: tks[:1],
  2691  				},
  2692  				Tokens: tks[:1],
  2693  			},
  2694  			BitwiseANDExpression: BitwiseANDExpression{
  2695  				EqualityExpression: EqualityExpression{
  2696  					RelationalExpression: RelationalExpression{
  2697  						ShiftExpression: ShiftExpression{
  2698  							AdditiveExpression: AdditiveExpression{
  2699  								MultiplicativeExpression: MultiplicativeExpression{
  2700  									ExponentiationExpression: ExponentiationExpression{
  2701  										UnaryExpression: UnaryExpression{
  2702  											UpdateExpression: UpdateExpression{
  2703  												LeftHandSideExpression: &LeftHandSideExpression{
  2704  													NewExpression: &NewExpression{
  2705  														MemberExpression: MemberExpression{
  2706  															PrimaryExpression: &PrimaryExpression{
  2707  																IdentifierReference: identB,
  2708  																Tokens:              tks[1:2],
  2709  															},
  2710  															Tokens: tks[1:2],
  2711  														},
  2712  														Tokens: tks[1:2],
  2713  													},
  2714  													Tokens: tks[1:2],
  2715  												},
  2716  												Tokens: tks[1:2],
  2717  											},
  2718  											Tokens: tks[1:2],
  2719  										},
  2720  										Tokens: tks[1:2],
  2721  									},
  2722  									Tokens: tks[1:2],
  2723  								},
  2724  								Tokens: tks[1:2],
  2725  							},
  2726  							Tokens: tks[1:2],
  2727  						},
  2728  						Tokens: tks[1:2],
  2729  					},
  2730  					Tokens: tks[1:2],
  2731  				},
  2732  				Tokens: tks[1:2],
  2733  			},
  2734  			Tokens: tks[:2],
  2735  		},
  2736  		&BitwiseORExpression{ // 22
  2737  			BitwiseORExpression: &BitwiseORExpression{
  2738  				BitwiseXORExpression: BitwiseXORExpression{
  2739  					BitwiseANDExpression: BitwiseANDExpression{
  2740  						EqualityExpression: EqualityExpression{
  2741  							RelationalExpression: RelationalExpression{
  2742  								ShiftExpression: ShiftExpression{
  2743  									AdditiveExpression: AdditiveExpression{
  2744  										MultiplicativeExpression: MultiplicativeExpression{
  2745  											ExponentiationExpression: ExponentiationExpression{
  2746  												UnaryExpression: UnaryExpression{
  2747  													UpdateExpression: UpdateExpression{
  2748  														LeftHandSideExpression: &LeftHandSideExpression{
  2749  															NewExpression: &NewExpression{
  2750  																MemberExpression: MemberExpression{
  2751  																	PrimaryExpression: &PrimaryExpression{
  2752  																		IdentifierReference: identA,
  2753  																		Tokens:              tks[:1],
  2754  																	},
  2755  																	Tokens: tks[:1],
  2756  																},
  2757  																Tokens: tks[:1],
  2758  															},
  2759  															Tokens: tks[:1],
  2760  														},
  2761  														Tokens: tks[:1],
  2762  													},
  2763  													Tokens: tks[:1],
  2764  												},
  2765  												Tokens: tks[:1],
  2766  											},
  2767  											Tokens: tks[:1],
  2768  										},
  2769  										Tokens: tks[:1],
  2770  									},
  2771  									Tokens: tks[:1],
  2772  								},
  2773  								Tokens: tks[:1],
  2774  							},
  2775  							Tokens: tks[:1],
  2776  						},
  2777  						Tokens: tks[:1],
  2778  					},
  2779  					Tokens: tks[:1],
  2780  				},
  2781  				Tokens: tks[:1],
  2782  			},
  2783  			BitwiseXORExpression: BitwiseXORExpression{
  2784  				BitwiseANDExpression: BitwiseANDExpression{
  2785  					EqualityExpression: EqualityExpression{
  2786  						RelationalExpression: RelationalExpression{
  2787  							ShiftExpression: ShiftExpression{
  2788  								AdditiveExpression: AdditiveExpression{
  2789  									MultiplicativeExpression: MultiplicativeExpression{
  2790  										ExponentiationExpression: ExponentiationExpression{
  2791  											UnaryExpression: UnaryExpression{
  2792  												UpdateExpression: UpdateExpression{
  2793  													LeftHandSideExpression: &LeftHandSideExpression{
  2794  														NewExpression: &NewExpression{
  2795  															MemberExpression: MemberExpression{
  2796  																PrimaryExpression: &PrimaryExpression{
  2797  																	IdentifierReference: identB,
  2798  																	Tokens:              tks[1:2],
  2799  																},
  2800  																Tokens: tks[1:2],
  2801  															},
  2802  															Tokens: tks[1:2],
  2803  														},
  2804  														Tokens: tks[1:2],
  2805  													},
  2806  													Tokens: tks[1:2],
  2807  												},
  2808  												Tokens: tks[1:2],
  2809  											},
  2810  											Tokens: tks[1:2],
  2811  										},
  2812  										Tokens: tks[1:2],
  2813  									},
  2814  									Tokens: tks[1:2],
  2815  								},
  2816  								Tokens: tks[1:2],
  2817  							},
  2818  							Tokens: tks[1:2],
  2819  						},
  2820  						Tokens: tks[1:2],
  2821  					},
  2822  					Tokens: tks[1:2],
  2823  				},
  2824  				Tokens: tks[1:2],
  2825  			},
  2826  			Tokens: tks[:2],
  2827  		},
  2828  		&LogicalANDExpression{ // 23
  2829  			LogicalANDExpression: &LogicalANDExpression{
  2830  				BitwiseORExpression: BitwiseORExpression{
  2831  					BitwiseXORExpression: BitwiseXORExpression{
  2832  						BitwiseANDExpression: BitwiseANDExpression{
  2833  							EqualityExpression: EqualityExpression{
  2834  								RelationalExpression: RelationalExpression{
  2835  									ShiftExpression: ShiftExpression{
  2836  										AdditiveExpression: AdditiveExpression{
  2837  											MultiplicativeExpression: MultiplicativeExpression{
  2838  												ExponentiationExpression: ExponentiationExpression{
  2839  													UnaryExpression: UnaryExpression{
  2840  														UpdateExpression: UpdateExpression{
  2841  															LeftHandSideExpression: &LeftHandSideExpression{
  2842  																NewExpression: &NewExpression{
  2843  																	MemberExpression: MemberExpression{
  2844  																		PrimaryExpression: &PrimaryExpression{
  2845  																			IdentifierReference: identA,
  2846  																			Tokens:              tks[:1],
  2847  																		},
  2848  																		Tokens: tks[:1],
  2849  																	},
  2850  																	Tokens: tks[:1],
  2851  																},
  2852  																Tokens: tks[:1],
  2853  															},
  2854  															Tokens: tks[:1],
  2855  														},
  2856  														Tokens: tks[:1],
  2857  													},
  2858  													Tokens: tks[:1],
  2859  												},
  2860  												Tokens: tks[:1],
  2861  											},
  2862  											Tokens: tks[:1],
  2863  										},
  2864  										Tokens: tks[:1],
  2865  									},
  2866  									Tokens: tks[:1],
  2867  								},
  2868  								Tokens: tks[:1],
  2869  							},
  2870  							Tokens: tks[:1],
  2871  						},
  2872  						Tokens: tks[:1],
  2873  					},
  2874  					Tokens: tks[:1],
  2875  				},
  2876  				Tokens: tks[:1],
  2877  			},
  2878  			BitwiseORExpression: BitwiseORExpression{
  2879  				BitwiseXORExpression: BitwiseXORExpression{
  2880  					BitwiseANDExpression: BitwiseANDExpression{
  2881  						EqualityExpression: EqualityExpression{
  2882  							RelationalExpression: RelationalExpression{
  2883  								ShiftExpression: ShiftExpression{
  2884  									AdditiveExpression: AdditiveExpression{
  2885  										MultiplicativeExpression: MultiplicativeExpression{
  2886  											ExponentiationExpression: ExponentiationExpression{
  2887  												UnaryExpression: UnaryExpression{
  2888  													UpdateExpression: UpdateExpression{
  2889  														LeftHandSideExpression: &LeftHandSideExpression{
  2890  															NewExpression: &NewExpression{
  2891  																MemberExpression: MemberExpression{
  2892  																	PrimaryExpression: &PrimaryExpression{
  2893  																		IdentifierReference: identB,
  2894  																		Tokens:              tks[1:2],
  2895  																	},
  2896  																	Tokens: tks[1:2],
  2897  																},
  2898  																Tokens: tks[1:2],
  2899  															},
  2900  															Tokens: tks[1:2],
  2901  														},
  2902  														Tokens: tks[1:2],
  2903  													},
  2904  													Tokens: tks[1:2],
  2905  												},
  2906  												Tokens: tks[1:2],
  2907  											},
  2908  											Tokens: tks[1:2],
  2909  										},
  2910  										Tokens: tks[1:2],
  2911  									},
  2912  									Tokens: tks[1:2],
  2913  								},
  2914  								Tokens: tks[1:2],
  2915  							},
  2916  							Tokens: tks[1:2],
  2917  						},
  2918  						Tokens: tks[1:2],
  2919  					},
  2920  					Tokens: tks[1:2],
  2921  				},
  2922  				Tokens: tks[1:2],
  2923  			},
  2924  			Tokens: tks[:2],
  2925  		},
  2926  		&LogicalORExpression{ // 24
  2927  			LogicalORExpression: &LogicalORExpression{
  2928  				LogicalANDExpression: LogicalANDExpression{
  2929  					BitwiseORExpression: BitwiseORExpression{
  2930  						BitwiseXORExpression: BitwiseXORExpression{
  2931  							BitwiseANDExpression: BitwiseANDExpression{
  2932  								EqualityExpression: EqualityExpression{
  2933  									RelationalExpression: RelationalExpression{
  2934  										ShiftExpression: ShiftExpression{
  2935  											AdditiveExpression: AdditiveExpression{
  2936  												MultiplicativeExpression: MultiplicativeExpression{
  2937  													ExponentiationExpression: ExponentiationExpression{
  2938  														UnaryExpression: UnaryExpression{
  2939  															UpdateExpression: UpdateExpression{
  2940  																LeftHandSideExpression: &LeftHandSideExpression{
  2941  																	NewExpression: &NewExpression{
  2942  																		MemberExpression: MemberExpression{
  2943  																			PrimaryExpression: &PrimaryExpression{
  2944  																				IdentifierReference: identA,
  2945  																				Tokens:              tks[:1],
  2946  																			},
  2947  																			Tokens: tks[:1],
  2948  																		},
  2949  																		Tokens: tks[:1],
  2950  																	},
  2951  																	Tokens: tks[:1],
  2952  																},
  2953  																Tokens: tks[:1],
  2954  															},
  2955  															Tokens: tks[:1],
  2956  														},
  2957  														Tokens: tks[:1],
  2958  													},
  2959  													Tokens: tks[:1],
  2960  												},
  2961  												Tokens: tks[:1],
  2962  											},
  2963  											Tokens: tks[:1],
  2964  										},
  2965  										Tokens: tks[:1],
  2966  									},
  2967  									Tokens: tks[:1],
  2968  								},
  2969  								Tokens: tks[:1],
  2970  							},
  2971  							Tokens: tks[:1],
  2972  						},
  2973  						Tokens: tks[:1],
  2974  					},
  2975  					Tokens: tks[:1],
  2976  				},
  2977  				Tokens: tks[:1],
  2978  			},
  2979  			LogicalANDExpression: LogicalANDExpression{
  2980  				BitwiseORExpression: BitwiseORExpression{
  2981  					BitwiseXORExpression: BitwiseXORExpression{
  2982  						BitwiseANDExpression: BitwiseANDExpression{
  2983  							EqualityExpression: EqualityExpression{
  2984  								RelationalExpression: RelationalExpression{
  2985  									ShiftExpression: ShiftExpression{
  2986  										AdditiveExpression: AdditiveExpression{
  2987  											MultiplicativeExpression: MultiplicativeExpression{
  2988  												ExponentiationExpression: ExponentiationExpression{
  2989  													UnaryExpression: UnaryExpression{
  2990  														UpdateExpression: UpdateExpression{
  2991  															LeftHandSideExpression: &LeftHandSideExpression{
  2992  																NewExpression: &NewExpression{
  2993  																	MemberExpression: MemberExpression{
  2994  																		PrimaryExpression: &PrimaryExpression{
  2995  																			IdentifierReference: identB,
  2996  																			Tokens:              tks[1:2],
  2997  																		},
  2998  																		Tokens: tks[1:2],
  2999  																	},
  3000  																	Tokens: tks[1:2],
  3001  																},
  3002  																Tokens: tks[1:2],
  3003  															},
  3004  															Tokens: tks[1:2],
  3005  														},
  3006  														Tokens: tks[1:2],
  3007  													},
  3008  													Tokens: tks[1:2],
  3009  												},
  3010  												Tokens: tks[1:2],
  3011  											},
  3012  											Tokens: tks[1:2],
  3013  										},
  3014  										Tokens: tks[1:2],
  3015  									},
  3016  									Tokens: tks[1:2],
  3017  								},
  3018  								Tokens: tks[1:2],
  3019  							},
  3020  							Tokens: tks[1:2],
  3021  						},
  3022  						Tokens: tks[1:2],
  3023  					},
  3024  					Tokens: tks[1:2],
  3025  				},
  3026  				Tokens: tks[1:2],
  3027  			},
  3028  			Tokens: tks[:2],
  3029  		},
  3030  		&ConditionalExpression{ // 25
  3031  			CoalesceExpression: &CoalesceExpression{
  3032  				CoalesceExpressionHead: &CoalesceExpression{
  3033  					BitwiseORExpression: BitwiseORExpression{
  3034  						BitwiseXORExpression: BitwiseXORExpression{
  3035  							BitwiseANDExpression: BitwiseANDExpression{
  3036  								EqualityExpression: EqualityExpression{
  3037  									RelationalExpression: RelationalExpression{
  3038  										ShiftExpression: ShiftExpression{
  3039  											AdditiveExpression: AdditiveExpression{
  3040  												MultiplicativeExpression: MultiplicativeExpression{
  3041  													ExponentiationExpression: ExponentiationExpression{
  3042  														UnaryExpression: UnaryExpression{
  3043  															UpdateExpression: UpdateExpression{
  3044  																LeftHandSideExpression: &LeftHandSideExpression{
  3045  																	NewExpression: &NewExpression{
  3046  																		MemberExpression: MemberExpression{
  3047  																			PrimaryExpression: &PrimaryExpression{
  3048  																				IdentifierReference: identA,
  3049  																				Tokens:              tks[:1],
  3050  																			},
  3051  																			Tokens: tks[:1],
  3052  																		},
  3053  																		Tokens: tks[:1],
  3054  																	},
  3055  																	Tokens: tks[:1],
  3056  																},
  3057  																Tokens: tks[:1],
  3058  															},
  3059  															Tokens: tks[:1],
  3060  														},
  3061  														Tokens: tks[:1],
  3062  													},
  3063  													Tokens: tks[:1],
  3064  												},
  3065  												Tokens: tks[:1],
  3066  											},
  3067  											Tokens: tks[:1],
  3068  										},
  3069  										Tokens: tks[:1],
  3070  									},
  3071  									Tokens: tks[:1],
  3072  								},
  3073  								Tokens: tks[:1],
  3074  							},
  3075  							Tokens: tks[:1],
  3076  						},
  3077  						Tokens: tks[:1],
  3078  					},
  3079  					Tokens: tks[:1],
  3080  				},
  3081  				BitwiseORExpression: BitwiseORExpression{
  3082  					BitwiseXORExpression: BitwiseXORExpression{
  3083  						BitwiseANDExpression: BitwiseANDExpression{
  3084  							EqualityExpression: EqualityExpression{
  3085  								RelationalExpression: RelationalExpression{
  3086  									ShiftExpression: ShiftExpression{
  3087  										AdditiveExpression: AdditiveExpression{
  3088  											MultiplicativeExpression: MultiplicativeExpression{
  3089  												ExponentiationExpression: ExponentiationExpression{
  3090  													UnaryExpression: UnaryExpression{
  3091  														UpdateExpression: UpdateExpression{
  3092  															LeftHandSideExpression: &LeftHandSideExpression{
  3093  																NewExpression: &NewExpression{
  3094  																	MemberExpression: MemberExpression{
  3095  																		PrimaryExpression: &PrimaryExpression{
  3096  																			IdentifierReference: identB,
  3097  																			Tokens:              tks[1:2],
  3098  																		},
  3099  																		Tokens: tks[1:2],
  3100  																	},
  3101  																	Tokens: tks[1:2],
  3102  																},
  3103  																Tokens: tks[1:2],
  3104  															},
  3105  															Tokens: tks[1:2],
  3106  														},
  3107  														Tokens: tks[1:2],
  3108  													},
  3109  													Tokens: tks[1:2],
  3110  												},
  3111  												Tokens: tks[1:2],
  3112  											},
  3113  											Tokens: tks[1:2],
  3114  										},
  3115  										Tokens: tks[1:2],
  3116  									},
  3117  									Tokens: tks[1:2],
  3118  								},
  3119  								Tokens: tks[1:2],
  3120  							},
  3121  							Tokens: tks[1:2],
  3122  						},
  3123  						Tokens: tks[1:2],
  3124  					},
  3125  					Tokens: tks[1:2],
  3126  				},
  3127  				Tokens: tks[1:2],
  3128  			},
  3129  			Tokens: tks[:2],
  3130  		},
  3131  	} {
  3132  		if output := UnwrapConditional(WrapConditional(test)); !reflect.DeepEqual(output, test) {
  3133  			t.Errorf("test %d: expecting\n%v\n...got...\n%v", n+1, test, output)
  3134  		}
  3135  	}
  3136  }
  3137  
  3138  func TestUnwrapConditionalExtra(t *testing.T) {
  3139  	if output := UnwrapConditional(nil); output != nil {
  3140  		t.Errorf("expecting nil got: %v", output)
  3141  	}
  3142  }
  3143