mgaudet

Summary:
In iOS6 I could select text, and then open a bookmarklet (like this one for example: https://bitbucket.org/mgaudet/dayonebookmarklet/src/1062388c8320f72ca099f4e684a9d9822d7e905c/dayone.html?at=master) which grabbed the text using window.getSelection().

However, it seems in iOS7, any action to invoke a bookmarklet deselects the text.

Steps to Reproduce:
1. Have a bookmarklet which uses window.getSelection()
2. Select Text
3. Try to invoke bookmarlet

mgaudet

Errors: 321
Error code : Number of errors : Summary of error : Additional info

V730 : 111 : Not all members of a class are initialized inside the constructor                     : Mostly in compiler and gc
V595 : 48  : Pointer was utilized before it was verified against nullptr
V614 : 13  : Potentially uninitialized variable used                                               : Mostly in compiler/ilgen
V542 : 13  : odd type cast: 'short' to 'unsigned char *'                                           : compiler/x/codegen
V522 : 13  : Dereferencing of the null pointer might take place                                    : Mostly in compiler/optimizer
V575 : 12  : Null pointer passed into function                                                     : port and /thread (unix)
V501 : 12  : Identical sub-expressions to the left and right of an operator

mgaudet

From 595dfc0c2b55e5b5da418c4f80d4922817822b74 Mon Sep 17 00:00:00 2001
From: Matthew Gaudet <magaudet@ca.ibm.com>
Date: Mon, 5 Dec 2016 09:38:57 -0500
Subject: [PATCH] Revert "Register a handler for sigabrt."

---
 signal.c | 23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/signal.c b/signal.c

mgaudet

<?xml version="1.0" standalone="no"?>
<jitlog>
<!--
MULTIPLE LOG FILES MAY EXIST
Please check for ADDITIONAL log files named:  logFile.1  logFile.2  logFile.3  logFile.4  logFile.5  logFile.6
-->
<compile
	method="java/lang/String.hashCode()I"
	hotness="warm"
	isProfilingCompile=0>

mgaudet

$ java -Xjit:traceIlGen,log=logFile,verbose -version

#INFO:  _______________________________________
#INFO:  Version Information:
#INFO:       JIT Level  - 292f272
#INFO:       JVM Level  - 20171027_36
#INFO:       GC Level   - 292f272
#INFO:  
#INFO:  Processor Information:
#INFO:       Platform Info:X86 Intel P6

mgaudet

$ java -Xjit:traceIlGen,log=logFile,verbose -version

#INFO:  _______________________________________
#INFO:  Version Information:
#INFO:       JIT Level  - 292f272
#INFO:       JVM Level  - 20171027_36
#INFO:       GC Level   - 292f272
#INFO:  
#INFO:  Processor Information:
#INFO:       Platform Info:X86 Intel P6

mgaudet

        0x2b872bbb5456: testl  %edx, %edx                 ; branchTest32 (the test)
        0x2b872bbb5458: jne    0x2b872bbb546d             ; branchTest32 (the jump to true)
        0x2b872bbb545e: movabsq $0x37c1c9d258a0, %rax     ; movPtr 
        0x2b872bbb5468: jmp    0x2b872bbb5477             ; jump done
true:   0x2b872bbb546d: movabsq $0x37c1c9d27480, %rax     ; movPtr
done:   0x2b872bbb5477: <unrelated instruction>

mgaudet

FunctionNode* Parser<FullParseHandler, Unit>::standaloneFunction

• Has a Function argument, Called from
• FunctionNode* frontend::StandaloneFunctionCompiler<Unit>::parse which has a function argument, called from
• static bool CompileStandaloneFunction which has a function argument. Called from
  • bool frontend::CompileStandaloneGenerator
  • bool frontend::CompileStandaloneAsyncFunction
  • bool frontend::CompileStandaloneAsyncGenerator
    • All of the above CompileStandAlones, plus the below CompileStandAloneFunction are called from CreateDynamicFunction: the function is allocated there. The above three are -only- called from CreateDynamicFunction.
• bool frontend::CompileStandaloneFunction which has a function argument. Called from

mgaudet

Example 2: Shadowing and closing over.

Remember: Pairs are (ScriptNum, ScopeNum)

// Script 1
// Scope 1
var x = 1;                              // Declared(1) = [x];
function f() // Script 2
{ // Scope 2

mgaudet

$ ../../../mach run run.js                                              # Interpreter, CacheIR, Baseline, Ion:  34252	(3.5x)
$ ../../../mach run --no-ion run.js                                     # Interpreter, CacheIR, Baseline:       9887 	(2.0x) 
$ ../../../mach run --no-ion --no-baseline --cache-ir-stubs=on run.js   # Interpreter, CacheIR:                 4890 	(6.6x)
$ ../../../mach run --no-ion --no-baseline --cache-ir-stubs=off run.js  # Interpreter:                          739			

MOZCONFIG: 

ac_add_options --enable-application=js

ac_add_options --enable-optimize