forked from paulirwin/JavaToCSharp
-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathSwitchStatementVisitor.cs
More file actions
73 lines (62 loc) · 2.59 KB
/
Copy pathSwitchStatementVisitor.cs
File metadata and controls
73 lines (62 loc) · 2.59 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
using System.Collections.Generic;
using System.Linq;
using com.github.javaparser.ast.expr;
using com.github.javaparser.ast.stmt;
using JavaToCSharp.Expressions;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
namespace JavaToCSharp.Statements;
public class SwitchStatementVisitor : StatementVisitor<SwitchStmt>
{
public override StatementSyntax? Visit(ConversionContext context, SwitchStmt switchStmt)
{
var selector = switchStmt.getSelector();
var selectorSyntax = ExpressionVisitor.VisitExpression(context, selector);
if (selectorSyntax is null)
{
return null;
}
var cases = switchStmt.getEntries().ToList<SwitchEntry>();
if (cases == null)
return SyntaxFactory.SwitchStatement(selectorSyntax, SyntaxFactory.List<SwitchSectionSyntax>());
var caseSyntaxes = new List<SwitchSectionSyntax>();
foreach (var cs in cases)
{
var labels = cs.getLabels().ToList<Expression>();
var statements = cs.getStatements().ToList<Statement>();
var syntaxes = VisitStatements(context, statements);
if (labels is not { Count: > 0 })
{
// default case
var hasBreakStmt = false;
foreach (var syntax in syntaxes)
{
if (syntax.Kind() == SyntaxKind.BreakStatement)
{
hasBreakStmt = true;
}
}
if (!hasBreakStmt)
{
syntaxes.Add(SyntaxFactory.BreakStatement());
}
var defaultSyntax = SyntaxFactory.SwitchSection(
SyntaxFactory.List(new List<SwitchLabelSyntax> { SyntaxFactory.DefaultSwitchLabel() }),
SyntaxFactory.List(syntaxes.AsEnumerable()));
caseSyntaxes.Add(defaultSyntax);
}
else
{
var labelSyntaxes = labels
.Select(i => ExpressionVisitor.VisitExpression(context, i))
.Where(i => i != null)
.Select(i => (SwitchLabelSyntax)SyntaxFactory.CaseSwitchLabel(i!));
var caseSyntax = SyntaxFactory.SwitchSection(
SyntaxFactory.List(labelSyntaxes.ToList()),
SyntaxFactory.List(syntaxes.AsEnumerable()));
caseSyntaxes.Add(caseSyntax);
}
}
return SyntaxFactory.SwitchStatement(selectorSyntax, SyntaxFactory.List(caseSyntaxes));
}
}