Robert Nystrom
891a8a1aa3
The README explains, it but, in short, this is a little library I harvested from the scripts I wrote during ui-as-code. It makes it easier to write scripts to gather bits of statistical data from Dart syntax. Change-Id: Ia33797f582c4d4f9f966b7f6dc7b58ca2414601e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166788 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Phil Quitslund <pquitslund@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
53 lines
1.4 KiB
Dart
53 lines
1.4 KiB
Dart
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:analyzer/dart/ast/ast.dart';
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import 'package:scrape/scrape.dart';
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void main(List<String> arguments) {
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Scrape()
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..addHistogram('Statements')
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..addVisitor(() => ControlFlowVisitor())
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..runCommandLine(arguments);
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}
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class ControlFlowVisitor extends ScrapeVisitor {
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@override
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void visitDoStatement(DoStatement node) {
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record('Statements', 'do while');
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super.visitDoStatement(node);
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}
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@override
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void visitForStatement(ForStatement node) {
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if (node.forLoopParts is ForEachParts) {
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record('Statements', 'for in');
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} else {
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record('Statements', 'for ;;');
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}
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super.visitForStatement(node);
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}
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@override
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void visitIfStatement(IfStatement node) {
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if (node.elseStatement != null) {
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record('Statements', 'if else');
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} else {
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record('Statements', 'if');
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}
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super.visitIfStatement(node);
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}
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@override
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void visitSwitchStatement(SwitchStatement node) {
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record('Statements', 'switch');
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super.visitSwitchStatement(node);
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}
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@override
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void visitWhileStatement(WhileStatement node) {
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record('Statements', 'while');
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super.visitWhileStatement(node);
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}
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}
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