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Merge branch 'master' of github.com:neo-project/neo-devpack-dotnet in…
…to optimize-nef # Conflicts: # src/Neo.Compiler.CSharp/CompilationEngine/CompilationContext.cs
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48 changes: 48 additions & 0 deletions
48
src/Neo.SmartContract.Analyzer/MultipleCatchBlockAnalyzer.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| using Microsoft.CodeAnalysis; | ||
| using Microsoft.CodeAnalysis.CSharp; | ||
| using Microsoft.CodeAnalysis.CSharp.Syntax; | ||
| using Microsoft.CodeAnalysis.Diagnostics; | ||
| using System.Collections.Immutable; | ||
|
|
||
| namespace Neo.SmartContract.Analyzer | ||
| { | ||
| [DiagnosticAnalyzer(LanguageNames.CSharp)] | ||
| public class MultipleCatchBlockAnalyzer : DiagnosticAnalyzer | ||
| { | ||
| public const string DiagnosticId = "NC4024"; | ||
|
|
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| private static readonly LocalizableString Title = "Multiple catch blocks are not allowed in Neo smart contracts"; | ||
| private static readonly LocalizableString MessageFormat = "Neo smart contracts only support a single catch block: {0}"; | ||
| private static readonly LocalizableString Description = "Neo smart contracts are limited to one catch block per try statement."; | ||
| private const string Category = "Usage"; | ||
|
|
||
| private static readonly DiagnosticDescriptor Rule = new DiagnosticDescriptor( | ||
| DiagnosticId, | ||
| Title, | ||
| MessageFormat, | ||
| Category, | ||
| DiagnosticSeverity.Error, | ||
| isEnabledByDefault: true, | ||
| description: Description); | ||
|
|
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| public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule); | ||
|
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| public override void Initialize(AnalysisContext context) | ||
| { | ||
| context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None); | ||
| context.EnableConcurrentExecution(); | ||
| context.RegisterSyntaxNodeAction(AnalyzeTryStatement, SyntaxKind.TryStatement); | ||
| } | ||
|
|
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| private static void AnalyzeTryStatement(SyntaxNodeAnalysisContext context) | ||
| { | ||
| var tryStatement = (TryStatementSyntax)context.Node; | ||
|
|
||
| if (tryStatement.Catches.Count > 1) | ||
| { | ||
| var diagnostic = Diagnostic.Create(Rule, tryStatement.GetLocation(), tryStatement.Catches.Count); | ||
| context.ReportDiagnostic(diagnostic); | ||
| } | ||
| } | ||
| } | ||
| } |
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