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Bug 1204028: Evaluate LHS reference before RHS in destructuring

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Issue #73
[Depends on] Bug 1147371: Implement IteratorClose
This commit is contained in:
janekptacijarabaci 2018-03-20 12:40:00 +01:00 • committed by Roy Tam
commit 2f27d8433c
11 changed files with 1743 additions and 97 deletions
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11
js/src/vm/Interpreter.cpp
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@ -1860,7 +1860,6 @@ CASE(EnableInterruptsPseudoOpcode)
/* Various 1-byte no-ops. */
CASE(JSOP_NOP)
CASE(JSOP_NOP_DESTRUCTURING)
CASE(JSOP_UNUSED183)
CASE(JSOP_UNUSED187)
CASE(JSOP_UNUSED192)
CASE(JSOP_UNUSED209)
@ -2193,6 +2192,16 @@ CASE(JSOP_PICK)
}
END_CASE(JSOP_PICK)
CASE(JSOP_UNPICK)
{
int i = GET_UINT8(REGS.pc);
MOZ_ASSERT(REGS.stackDepth() >= unsigned(i) + 1);
Value lval = REGS.sp[-1];
memmove(REGS.sp - i, REGS.sp - (i + 1), sizeof(Value) * i);
REGS.sp[-(i + 1)] = lval;
}
END_CASE(JSOP_UNPICK)
CASE(JSOP_BINDGNAME)
CASE(JSOP_BINDNAME)
{