/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
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/**
* SWITCH - Branch depending on int value, generates either LOOKUPSWITCH or
* TABLESWITCH instruction, depending on whether the match values (int[]) can be
* sorted with no gaps between the numbers.
*
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
*/
private int[] match;
private int match_length;
/**
* Template for switch() constructs. If the match array can be
* sorted in ascending order with gaps no larger than max_gap
* between the numbers, a TABLESWITCH instruction is generated, and
* a LOOKUPSWITCH otherwise. The former may be more efficient, but
* needs more space.
*
* Note, that the key array always will be sorted, though we leave
* the original arrays unaltered.
*
* @param match array of match values (case 2: ... case 7: ..., etc.)
* @param targets the instructions to be branched to for each case
* @param target the default target
* @param max_gap maximum gap that may between case branches
*/
else {
if(matchIsOrdered(max_gap)) {
}
else
}
}
}
int count = 1;
for(int i=1; i < match_length; i++) {
for(int j=1; j < gap; j++) {
count++;
}
count++;
}
}
/**
* Sort match and targets array with QuickSort.
*/
private final void sort(int l, int r) {
int i = l, j = r;
int h, m = match[(l + r) / 2];
do {
while(match[i] < m) i++;
while(m < match[j]) j--;
if(i <= j) {
i++; j--;
}
} while(i <= j);
if(l < j) sort(l, j);
if(i < r) sort(i, r);
}
/**
* @return match is sorted in ascending order with no gap bigger than max_gap?
*/
for(int i=1; i < match_length; i++)
return false;
return true;
}
return new InstructionList(instruction);
}
return instruction;
}
}