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Call Method

SWF Action
Action Category: 
Action Details: 
Action Identifier: 
Action Structure: 
Action Length: 
0 byte(s)
Action Stack: 
pop 1 (s), pop 1 (o), pop 1 (i), pop i3 (a)
Action Operation: 
s1 := pop();
o2 := pop();
i3 := pop();
for(idx := 4; idx < i3 + 4; ++idx) {
  aidx := pop();
if(s1.length) {
  // call method s1
  r := o2.s1(a4, a5, a6...a(i3+3));
else {
  // call constructor o2
  r := o2(a4, a5, a6...a(i3+3));
Action Flash Version: 

Pop the name of a method (can be the empty string), pop an object, pop the number of arguments, pop each argument, call the method (function) of the object, push the returned value on the stack.

When the string is empty, the constructor is called. This is used by the system right after a new operator was called and most of the time the return value is simply discarded.


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