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Helper scripts from "Exploring Java Hidden Costs" presentation.
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| #!/bin/bash | |
| set -e | |
| METHODS=$(dex-method-list $1 | \grep 'access\$') | |
| ACCESSORS=$(echo "$METHODS" | wc -l | xargs) | |
| METHOD_AND_READ=$(echo "$METHODS" | egrep 'access\$\d+00\(' | wc -l | xargs) | |
| WRITE=$(echo "$METHODS" | egrep 'access\$\d+02\(' | wc -l | xargs) | |
| PREINC=$(echo "$METHODS" | egrep 'access\$\d+04\(' | wc -l | xargs) | |
| PREDEC=$(echo "$METHODS" | egrep 'access\$\d+06\(' | wc -l | xargs) | |
| POSTINC=$(echo "$METHODS" | egrep 'access\$\d+08\(' | wc -l | xargs) | |
| POSTDEC=$(echo "$METHODS" | egrep 'access\$\d+10\(' | wc -l | xargs) | |
| OTHER=$(( $ACCESSORS - $METHOD_AND_READ - $WRITE - $PREINC - $PREDEC - $POSTINC - $POSTDEC )) | |
| NAME=$(basename $1) | |
| echo -e "$NAME\t$ACCESSORS\t$METHOD_AND_READ\t$WRITE\t$PREINC\t$PREDEC\t$POSTINC\t$POSTDEC\t$OTHER" |
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| #!/usr/bin/python | |
| import os | |
| import subprocess | |
| import sys | |
| list = subprocess.check_output(["dex-method-list", sys.argv[1]]) | |
| class_info_by_name = {} | |
| for item in list.split('\n'): | |
| first_space = item.find(' ') | |
| open_paren = item.find('(') | |
| close_paren = item.find(')') | |
| last_space = item.rfind(' ') | |
| class_name = item[0:first_space] | |
| method_name = item[first_space + 1:open_paren] | |
| params = [param for param in item[open_paren + 1:close_paren].split(', ') if len(param) > 0] | |
| return_type = item[last_space + 1:] | |
| if last_space < close_paren: | |
| return_type = 'void' | |
| # print class_name, method_name, params, return_type | |
| if class_name not in class_info_by_name: | |
| class_info_by_name[class_name] = {} | |
| class_info = class_info_by_name[class_name] | |
| if method_name not in class_info: | |
| class_info[method_name] = [] | |
| method_info_by_name = class_info[method_name] | |
| method_info_by_name.append({ | |
| 'params': params, | |
| 'return': return_type | |
| }) | |
| count = 0 | |
| for class_name, class_info in class_info_by_name.items(): | |
| for method_name, method_info_by_name in class_info.items(): | |
| for method_info in method_info_by_name: | |
| for other_method_info in method_info_by_name: | |
| if method_info == other_method_info: | |
| continue # Do not compare against self. | |
| params = method_info['params'] | |
| other_params = other_method_info['params'] | |
| if len(params) != len(other_params): | |
| continue # Do not compare different numbered parameter lists. | |
| match = True | |
| erased = False | |
| for idx, param in enumerate(params): | |
| other_param = other_params[idx] | |
| if param != 'Object' and not param[0].islower() and other_param == 'Object': | |
| erased = True | |
| elif param != other_param: | |
| match = False | |
| return_type = method_info['return'] | |
| other_return_type = other_method_info['return'] | |
| if return_type != 'Object' and other_return_type == 'Object': | |
| erased = True | |
| elif return_type != other_return_type: | |
| match = False | |
| if match and erased: | |
| count += 1 | |
| # print "FOUND! %s %s %s %s" % (class_name, method_name, params, return_type) | |
| # print " %s %s %s %s" % (class_name, method_name, other_params, other_return_type) | |
| print os.path.basename(sys.argv[1]) + '\t' + str(count) |
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| #!/bin/bash | |
| set -e | |
| ALL=$(dex-method-list $1) | |
| RL=$(echo "$ALL" | \grep ' lambda\$' | wc -l | xargs) | |
| JACK=$(echo "$ALL" | \grep '_lambda\$' | wc -l | xargs) | |
| NAME=$(basename $1) | |
| echo -e "$NAME\t$RL\t$JACK" |
I am pretty sure he was talking about Intellij's Inspector.
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Hello JakeWharton!
I had watched your speech about the hidden cost of Java, it helps me a lot, and you mentioned a tool called "IntelliGate", it can help us to check out the incorrectly private variables ? but I can find any info about this tools, could you give me a relative link? Thank for your great talk !