From 621e2e71c86eb2fbc0155686959a67c2f6edc0b2 Mon Sep 17 00:00:00 2001
From: Asger F <asgerf@github.com>
Date: Tue, 4 Apr 2023 16:35:50 +0200
Subject: [PATCH] JS: Don't try to parse "get=" as a method prop

---
 .../src/com/semmle/jcorn/Parser.java          |   1 +
 .../tests/exprs/output/trap/patterns.js.trap  | 550 ++++++++++++++++--
 2 files changed, 516 insertions(+), 35 deletions(-)

diff --git a/javascript/extractor/src/com/semmle/jcorn/Parser.java b/javascript/extractor/src/com/semmle/jcorn/Parser.java
index a5a6dc4e0d1..aac1c425e77 100644
--- a/javascript/extractor/src/com/semmle/jcorn/Parser.java
+++ b/javascript/extractor/src/com/semmle/jcorn/Parser.java
@@ -2069,6 +2069,7 @@ public class Parser {
       pi.value = this.parseMethod(pi.isGenerator, pi.isAsync);
     } else if (this.options.ecmaVersion() >= 5
         && !pi.computed
+        && !pi.isPattern
         && pi.key instanceof Identifier
         && (((Identifier) pi.key).getName().equals("get")
             || ((Identifier) pi.key).getName().equals("set"))
diff --git a/javascript/extractor/tests/exprs/output/trap/patterns.js.trap b/javascript/extractor/tests/exprs/output/trap/patterns.js.trap
index b368d0e2d43..18c8b4851ed 100644
--- a/javascript/extractor/tests/exprs/output/trap/patterns.js.trap
+++ b/javascript/extractor/tests/exprs/output/trap/patterns.js.trap
@@ -9,40 +9,520 @@ hasLocation(#10000,#10002)
 #20000=@"global_scope"
 scopes(#20000,0)
 #20001=@"script;{#10000},1,1"
+#20002=*
+lines(#20002,#20001,"var { get, set } = x;","
+")
+#20003=@"loc,{#10000},1,1,1,21"
+locations_default(#20003,#10000,1,1,1,21)
+hasLocation(#20002,#20003)
+#20004=*
+lines(#20004,#20001,"var { get = 1 } = x;","
+")
+#20005=@"loc,{#10000},2,1,2,20"
+locations_default(#20005,#10000,2,1,2,20)
+hasLocation(#20004,#20005)
+#20006=*
+lines(#20006,#20001,"var { set = 1 } = x;","
+")
+#20007=@"loc,{#10000},3,1,3,20"
+locations_default(#20007,#10000,3,1,3,20)
+hasLocation(#20006,#20007)
+#20008=*
+lines(#20008,#20001,"var { get = 1, set = 1 } = x;","
+")
+#20009=@"loc,{#10000},4,1,4,29"
+locations_default(#20009,#10000,4,1,4,29)
+hasLocation(#20008,#20009)
+numlines(#20001,4,4,0)
+#20010=*
+tokeninfo(#20010,7,#20001,0,"var")
+#20011=@"loc,{#10000},1,1,1,3"
+locations_default(#20011,#10000,1,1,1,3)
+hasLocation(#20010,#20011)
+#20012=*
+tokeninfo(#20012,8,#20001,1,"{")
+#20013=@"loc,{#10000},1,5,1,5"
+locations_default(#20013,#10000,1,5,1,5)
+hasLocation(#20012,#20013)
+#20014=*
+tokeninfo(#20014,6,#20001,2,"get")
+#20015=@"loc,{#10000},1,7,1,9"
+locations_default(#20015,#10000,1,7,1,9)
+hasLocation(#20014,#20015)
+#20016=*
+tokeninfo(#20016,8,#20001,3,",")
+#20017=@"loc,{#10000},1,10,1,10"
+locations_default(#20017,#10000,1,10,1,10)
+hasLocation(#20016,#20017)
+#20018=*
+tokeninfo(#20018,6,#20001,4,"set")
+#20019=@"loc,{#10000},1,12,1,14"
+locations_default(#20019,#10000,1,12,1,14)
+hasLocation(#20018,#20019)
+#20020=*
+tokeninfo(#20020,8,#20001,5,"}")
+#20021=@"loc,{#10000},1,16,1,16"
+locations_default(#20021,#10000,1,16,1,16)
+hasLocation(#20020,#20021)
+#20022=*
+tokeninfo(#20022,8,#20001,6,"=")
+#20023=@"loc,{#10000},1,18,1,18"
+locations_default(#20023,#10000,1,18,1,18)
+hasLocation(#20022,#20023)
+#20024=*
+tokeninfo(#20024,6,#20001,7,"x")
+#20025=@"loc,{#10000},1,20,1,20"
+locations_default(#20025,#10000,1,20,1,20)
+hasLocation(#20024,#20025)
+#20026=*
+tokeninfo(#20026,8,#20001,8,";")
+#20027=@"loc,{#10000},1,21,1,21"
+locations_default(#20027,#10000,1,21,1,21)
+hasLocation(#20026,#20027)
+#20028=*
+tokeninfo(#20028,7,#20001,9,"var")
+#20029=@"loc,{#10000},2,1,2,3"
+locations_default(#20029,#10000,2,1,2,3)
+hasLocation(#20028,#20029)
+#20030=*
+tokeninfo(#20030,8,#20001,10,"{")
+#20031=@"loc,{#10000},2,5,2,5"
+locations_default(#20031,#10000,2,5,2,5)
+hasLocation(#20030,#20031)
+#20032=*
+tokeninfo(#20032,6,#20001,11,"get")
+#20033=@"loc,{#10000},2,7,2,9"
+locations_default(#20033,#10000,2,7,2,9)
+hasLocation(#20032,#20033)
+#20034=*
+tokeninfo(#20034,8,#20001,12,"=")
+#20035=@"loc,{#10000},2,11,2,11"
+locations_default(#20035,#10000,2,11,2,11)
+hasLocation(#20034,#20035)
+#20036=*
+tokeninfo(#20036,3,#20001,13,"1")
+#20037=@"loc,{#10000},2,13,2,13"
+locations_default(#20037,#10000,2,13,2,13)
+hasLocation(#20036,#20037)
+#20038=*
+tokeninfo(#20038,8,#20001,14,"}")
+#20039=@"loc,{#10000},2,15,2,15"
+locations_default(#20039,#10000,2,15,2,15)
+hasLocation(#20038,#20039)
+#20040=*
+tokeninfo(#20040,8,#20001,15,"=")
+#20041=@"loc,{#10000},2,17,2,17"
+locations_default(#20041,#10000,2,17,2,17)
+hasLocation(#20040,#20041)
+#20042=*
+tokeninfo(#20042,6,#20001,16,"x")
+#20043=@"loc,{#10000},2,19,2,19"
+locations_default(#20043,#10000,2,19,2,19)
+hasLocation(#20042,#20043)
+#20044=*
+tokeninfo(#20044,8,#20001,17,";")
+#20045=@"loc,{#10000},2,20,2,20"
+locations_default(#20045,#10000,2,20,2,20)
+hasLocation(#20044,#20045)
+#20046=*
+tokeninfo(#20046,7,#20001,18,"var")
+#20047=@"loc,{#10000},3,1,3,3"
+locations_default(#20047,#10000,3,1,3,3)
+hasLocation(#20046,#20047)
+#20048=*
+tokeninfo(#20048,8,#20001,19,"{")
+#20049=@"loc,{#10000},3,5,3,5"
+locations_default(#20049,#10000,3,5,3,5)
+hasLocation(#20048,#20049)
+#20050=*
+tokeninfo(#20050,6,#20001,20,"set")
+#20051=@"loc,{#10000},3,7,3,9"
+locations_default(#20051,#10000,3,7,3,9)
+hasLocation(#20050,#20051)
+#20052=*
+tokeninfo(#20052,8,#20001,21,"=")
+#20053=@"loc,{#10000},3,11,3,11"
+locations_default(#20053,#10000,3,11,3,11)
+hasLocation(#20052,#20053)
+#20054=*
+tokeninfo(#20054,3,#20001,22,"1")
+#20055=@"loc,{#10000},3,13,3,13"
+locations_default(#20055,#10000,3,13,3,13)
+hasLocation(#20054,#20055)
+#20056=*
+tokeninfo(#20056,8,#20001,23,"}")
+#20057=@"loc,{#10000},3,15,3,15"
+locations_default(#20057,#10000,3,15,3,15)
+hasLocation(#20056,#20057)
+#20058=*
+tokeninfo(#20058,8,#20001,24,"=")
+#20059=@"loc,{#10000},3,17,3,17"
+locations_default(#20059,#10000,3,17,3,17)
+hasLocation(#20058,#20059)
+#20060=*
+tokeninfo(#20060,6,#20001,25,"x")
+#20061=@"loc,{#10000},3,19,3,19"
+locations_default(#20061,#10000,3,19,3,19)
+hasLocation(#20060,#20061)
+#20062=*
+tokeninfo(#20062,8,#20001,26,";")
+#20063=@"loc,{#10000},3,20,3,20"
+locations_default(#20063,#10000,3,20,3,20)
+hasLocation(#20062,#20063)
+#20064=*
+tokeninfo(#20064,7,#20001,27,"var")
+#20065=@"loc,{#10000},4,1,4,3"
+locations_default(#20065,#10000,4,1,4,3)
+hasLocation(#20064,#20065)
+#20066=*
+tokeninfo(#20066,8,#20001,28,"{")
+#20067=@"loc,{#10000},4,5,4,5"
+locations_default(#20067,#10000,4,5,4,5)
+hasLocation(#20066,#20067)
+#20068=*
+tokeninfo(#20068,6,#20001,29,"get")
+#20069=@"loc,{#10000},4,7,4,9"
+locations_default(#20069,#10000,4,7,4,9)
+hasLocation(#20068,#20069)
+#20070=*
+tokeninfo(#20070,8,#20001,30,"=")
+#20071=@"loc,{#10000},4,11,4,11"
+locations_default(#20071,#10000,4,11,4,11)
+hasLocation(#20070,#20071)
+#20072=*
+tokeninfo(#20072,3,#20001,31,"1")
+#20073=@"loc,{#10000},4,13,4,13"
+locations_default(#20073,#10000,4,13,4,13)
+hasLocation(#20072,#20073)
+#20074=*
+tokeninfo(#20074,8,#20001,32,",")
+#20075=@"loc,{#10000},4,14,4,14"
+locations_default(#20075,#10000,4,14,4,14)
+hasLocation(#20074,#20075)
+#20076=*
+tokeninfo(#20076,6,#20001,33,"set")
+#20077=@"loc,{#10000},4,16,4,18"
+locations_default(#20077,#10000,4,16,4,18)
+hasLocation(#20076,#20077)
+#20078=*
+tokeninfo(#20078,8,#20001,34,"=")
+#20079=@"loc,{#10000},4,20,4,20"
+locations_default(#20079,#10000,4,20,4,20)
+hasLocation(#20078,#20079)
+#20080=*
+tokeninfo(#20080,3,#20001,35,"1")
+#20081=@"loc,{#10000},4,22,4,22"
+locations_default(#20081,#10000,4,22,4,22)
+hasLocation(#20080,#20081)
+#20082=*
+tokeninfo(#20082,8,#20001,36,"}")
+#20083=@"loc,{#10000},4,24,4,24"
+locations_default(#20083,#10000,4,24,4,24)
+hasLocation(#20082,#20083)
+#20084=*
+tokeninfo(#20084,8,#20001,37,"=")
+#20085=@"loc,{#10000},4,26,4,26"
+locations_default(#20085,#10000,4,26,4,26)
+hasLocation(#20084,#20085)
+#20086=*
+tokeninfo(#20086,6,#20001,38,"x")
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+locations_default(#20087,#10000,4,28,4,28)
+hasLocation(#20086,#20087)
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+tokeninfo(#20088,8,#20001,39,";")
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+locations_default(#20089,#10000,4,29,4,29)
+hasLocation(#20088,#20089)
+#20090=*
+tokeninfo(#20090,0,#20001,40,"")
+#20091=@"loc,{#10000},5,1,5,0"
+locations_default(#20091,#10000,5,1,5,0)
+hasLocation(#20090,#20091)
 toplevels(#20001,0)
-#20002=@"loc,{#10000},1,1,1,1"
-locations_default(#20002,#10000,1,1,1,1)
-hasLocation(#20001,#20002)
-#20003=*
-js_parse_errors(#20003,#20001,"Error: Unexpected token","var { get = 1 } = x;
-")
-#20004=@"loc,{#10000},2,11,2,11"
-locations_default(#20004,#10000,2,11,2,11)
-hasLocation(#20003,#20004)
-#20005=*
-lines(#20005,#20001,"var { get, set } = x;","
-")
-#20006=@"loc,{#10000},1,1,1,21"
-locations_default(#20006,#10000,1,1,1,21)
-hasLocation(#20005,#20006)
-#20007=*
-lines(#20007,#20001,"var { get = 1 } = x;","
-")
-#20008=@"loc,{#10000},2,1,2,20"
-locations_default(#20008,#10000,2,1,2,20)
-hasLocation(#20007,#20008)
-#20009=*
-lines(#20009,#20001,"var { set = 1 } = x;","
-")
-#20010=@"loc,{#10000},3,1,3,20"
-locations_default(#20010,#10000,3,1,3,20)
-hasLocation(#20009,#20010)
-#20011=*
-lines(#20011,#20001,"var { get = 1, set = 1 } = x;","
-")
-#20012=@"loc,{#10000},4,1,4,29"
-locations_default(#20012,#10000,4,1,4,29)
-hasLocation(#20011,#20012)
-numlines(#20001,4,0,0)
-numlines(#10000,4,0,0)
+#20092=@"loc,{#10000},1,1,5,0"
+locations_default(#20092,#10000,1,1,5,0)
+hasLocation(#20001,#20092)
+#20093=@"var;{get};{#20000}"
+variables(#20093,"get",#20000)
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+stmts(#20095,18,#20001,0,"var { g ...  } = x;")
+hasLocation(#20095,#20003)
+stmt_containers(#20095,#20001)
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+exprs(#20096,64,#20095,0,"{ get, set } = x")
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+locations_default(#20097,#10000,1,5,1,20)
+hasLocation(#20096,#20097)
+enclosing_stmt(#20096,#20095)
+expr_containers(#20096,#20001)
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+locations_default(#20099,#10000,1,5,1,16)
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+enclosing_stmt(#20098,#20095)
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+hasLocation(#20101,#20015)
+enclosing_stmt(#20101,#20095)
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+hasLocation(#20102,#20015)
+enclosing_stmt(#20102,#20095)
+expr_containers(#20102,#20001)
+literals("get","get",#20102)
+decl(#20102,#20093)
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+hasLocation(#20104,#20019)
+enclosing_stmt(#20104,#20095)
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+enclosing_stmt(#20105,#20095)
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+enclosing_stmt(#20106,#20095)
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+variables(#20107,"x",#20000)
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+locations_default(#20110,#10000,2,5,2,19)
+hasLocation(#20109,#20110)
+enclosing_stmt(#20109,#20108)
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+enclosing_stmt(#20111,#20108)
+expr_containers(#20111,#20001)
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+hasLocation(#20113,#20114)
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+exprs(#20115,0,#20113,0,"get")
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+enclosing_stmt(#20115,#20108)
+expr_containers(#20115,#20001)
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+enclosing_stmt(#20116,#20108)
+expr_containers(#20116,#20001)
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+enclosing_stmt(#20120,#20119)
+expr_containers(#20120,#20001)
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+hasLocation(#20122,#20123)
+enclosing_stmt(#20122,#20119)
+expr_containers(#20122,#20001)
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+locations_default(#20125,#10000,3,7,3,13)
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+exprs(#20126,0,#20124,0,"set")
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+enclosing_stmt(#20126,#20119)
+expr_containers(#20126,#20001)
+literals("set","set",#20126)
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+enclosing_stmt(#20127,#20119)
+expr_containers(#20127,#20001)
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+enclosing_stmt(#20128,#20119)
+expr_containers(#20128,#20001)
+literals("1","1",#20128)
+#20129=*
+exprs(#20129,79,#20120,1,"x")
+hasLocation(#20129,#20061)
+enclosing_stmt(#20129,#20119)
+expr_containers(#20129,#20001)
+literals("x","x",#20129)
+bind(#20129,#20107)
+#20130=*
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+locations_default(#20132,#10000,4,5,4,28)
+hasLocation(#20131,#20132)
+enclosing_stmt(#20131,#20130)
+expr_containers(#20131,#20001)
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+locations_default(#20134,#10000,4,5,4,24)
+hasLocation(#20133,#20134)
+enclosing_stmt(#20133,#20130)
+expr_containers(#20133,#20001)
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+properties(#20135,#20133,0,0,"get = 1")
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+locations_default(#20136,#10000,4,7,4,13)
+hasLocation(#20135,#20136)
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+exprs(#20137,0,#20135,0,"get")
+hasLocation(#20137,#20069)
+enclosing_stmt(#20137,#20130)
+expr_containers(#20137,#20001)
+literals("get","get",#20137)
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+exprs(#20138,78,#20135,1,"get")
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+enclosing_stmt(#20138,#20130)
+expr_containers(#20138,#20001)
+literals("get","get",#20138)
+decl(#20138,#20093)
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+exprs(#20139,3,#20135,2,"1")
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+enclosing_stmt(#20139,#20130)
+expr_containers(#20139,#20001)
+literals("1","1",#20139)
+#20140=*
+properties(#20140,#20133,1,0,"set = 1")
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+locations_default(#20141,#10000,4,16,4,22)
+hasLocation(#20140,#20141)
+#20142=*
+exprs(#20142,0,#20140,0,"set")
+hasLocation(#20142,#20077)
+enclosing_stmt(#20142,#20130)
+expr_containers(#20142,#20001)
+literals("set","set",#20142)
+#20143=*
+exprs(#20143,78,#20140,1,"set")
+hasLocation(#20143,#20077)
+enclosing_stmt(#20143,#20130)
+expr_containers(#20143,#20001)
+literals("set","set",#20143)
+decl(#20143,#20094)
+#20144=*
+exprs(#20144,3,#20140,2,"1")
+hasLocation(#20144,#20081)
+enclosing_stmt(#20144,#20130)
+expr_containers(#20144,#20001)
+literals("1","1",#20144)
+#20145=*
+exprs(#20145,79,#20131,1,"x")
+hasLocation(#20145,#20087)
+enclosing_stmt(#20145,#20130)
+expr_containers(#20145,#20001)
+literals("x","x",#20145)
+bind(#20145,#20107)
+#20146=*
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