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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
class BaseArgumentsProcessor {
constructor(args) {
this.args_ = args;
this.result_ = this.getDefaultResults();
console.assert(this.result_ !== undefined)
console.assert(this.result_.logFileName !== undefined);
this.argsDispatch_ = this.getArgsDispatch();
console.assert(this.argsDispatch_ !== undefined);
}
getDefaultResults() {
throw "Implement in getDefaultResults in subclass";
}
getArgsDispatch() {
throw "Implement getArgsDispatch in subclass";
}
result() { return this.result_ }
printUsageAndExit() {
print('Cmdline args: [options] [log-file-name]\n' +
'Default log file name is "' +
this.result_.logFileName + '".\n');
print('Options:');
for (var arg in this.argsDispatch_) {
var synonyms = [arg];
var dispatch = this.argsDispatch_[arg];
for (var synArg in this.argsDispatch_) {
if (arg !== synArg && dispatch === this.argsDispatch_[synArg]) {
synonyms.push(synArg);
delete this.argsDispatch_[synArg];
}
}
print(' ' + synonyms.join(', ').padEnd(20) + " " + dispatch[2]);
}
quit(2);
}
parse() {
while (this.args_.length) {
var arg = this.args_.shift();
if (arg.charAt(0) != '-') {
this.result_.logFileName = arg;
continue;
}
var userValue = null;
var eqPos = arg.indexOf('=');
if (eqPos != -1) {
userValue = arg.substr(eqPos + 1);
arg = arg.substr(0, eqPos);
}
if (arg in this.argsDispatch_) {
var dispatch = this.argsDispatch_[arg];
var property = dispatch[0];
var defaultValue = dispatch[1];
if (typeof defaultValue == "function") {
userValue = defaultValue(userValue);
} else if (userValue == null) {
userValue = defaultValue;
}
this.result_[property] = userValue;
} else {
return false;
}
}
return true;
}
}
function parseBool(str) {
if (str == "true" || str == "1") return true;
return false;
}