Parker Lougheed
2a98f98098
Change-Id: Ief30fb79b2afcbb3f50d9127eb622fac362b07b1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/340141 Commit-Queue: Devon Carew <devoncarew@google.com> Auto-Submit: Parker Lougheed <parlough@gmail.com> Reviewed-by: Devon Carew <devoncarew@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com>
83 lines
2.9 KiB
Dart
83 lines
2.9 KiB
Dart
// Copyright (c) 2021, 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('Has argument list?')
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..addHistogram('Arguments', order: SortOrder.numeric)
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..addHistogram('Argument type')
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..addHistogram('Argument identifier')
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..addHistogram('Annotation')
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..addVisitor(AnnotationVisitor.new)
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..runCommandLine(arguments);
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}
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class AnnotationVisitor extends ScrapeVisitor {
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@override
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void visitAnnotation(Annotation node) {
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record('Annotation', node.name.name);
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var arguments = node.arguments;
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if (arguments != null) {
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record('Has argument list?', 'yes');
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record('Arguments', arguments.arguments.length);
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arguments.arguments.forEach(_recordArgument);
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} else {
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record('Has argument list?', 'no');
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}
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super.visitAnnotation(node);
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}
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void _recordArgument(AstNode? node) {
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if (node is NamedExpression) {
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_recordArgument(node.expression);
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} else if (node is IfElement) {
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_recordArgument(node.thenElement);
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_recordArgument(node.elseElement);
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} else if (node is ForElement) {
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_recordArgument(node.body);
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} else if (node is SpreadElement) {
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_recordArgument(node.expression);
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} else if (node is MapLiteralEntry) {
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_recordArgument(node.key);
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_recordArgument(node.value);
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} else if (node is SimpleIdentifier || node is PrefixedIdentifier) {
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record('Argument identifier', node.toString());
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record('Argument type', 'identifier');
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} else if (node is PrefixExpression) {
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record('Argument type', 'unary operator');
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} else if (node is BinaryExpression) {
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record('Argument type', 'binary operator');
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} else if (node is BooleanLiteral) {
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record('Argument type', 'bool');
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} else if (node is DoubleLiteral) {
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record('Argument type', 'double');
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} else if (node is IntegerLiteral) {
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record('Argument type', 'int');
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} else if (node is ListLiteral) {
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record('Argument type', 'list');
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node.elements.forEach(_recordArgument);
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} else if (node is MethodInvocation) {
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record('Argument type', 'method call');
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} else if (node is NullLiteral) {
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record('Argument type', 'null');
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} else if (node is SetOrMapLiteral) {
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record('Argument type', 'set or map');
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node.elements.forEach(_recordArgument);
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} else if (node is StringLiteral) {
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record('Argument type', 'string');
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} else if (node is SymbolLiteral) {
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record('Argument type', 'symbol');
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} else if (node == null) {
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// Do nothing. Only happens for null else elements.
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} else {
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record('Argument type', node.runtimeType.toString());
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}
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}
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}
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