diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/SMAPI.ModBuildConfig.Analyzer.Tests/Mock/StardewValley/Farmer.cs | 11 | ||||
| -rw-r--r-- | src/SMAPI.ModBuildConfig.Analyzer.Tests/NetFieldAnalyzerTests.cs (renamed from src/SMAPI.ModBuildConfig.Analyzer.Tests/UnitTests.cs) | 14 | ||||
| -rw-r--r-- | src/SMAPI.ModBuildConfig.Analyzer.Tests/ObsoleteFieldAnalyzerTests.cs | 88 | ||||
| -rw-r--r-- | src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs | 98 |
4 files changed, 204 insertions, 7 deletions
diff --git a/src/SMAPI.ModBuildConfig.Analyzer.Tests/Mock/StardewValley/Farmer.cs b/src/SMAPI.ModBuildConfig.Analyzer.Tests/Mock/StardewValley/Farmer.cs new file mode 100644 index 00000000..e0f0e30c --- /dev/null +++ b/src/SMAPI.ModBuildConfig.Analyzer.Tests/Mock/StardewValley/Farmer.cs @@ -0,0 +1,11 @@ +// ReSharper disable CheckNamespace, InconsistentNaming -- matches Stardew Valley's code +using System.Collections.Generic; + +namespace StardewValley +{ + /// <summary>A simplified version of Stardew Valley's <c>StardewValley.Farmer</c> class for unit testing.</summary> + internal class Farmer + { + public IDictionary<string, int[]> friendships; + } +} diff --git a/src/SMAPI.ModBuildConfig.Analyzer.Tests/UnitTests.cs b/src/SMAPI.ModBuildConfig.Analyzer.Tests/NetFieldAnalyzerTests.cs index 8ca27847..101f4c21 100644 --- a/src/SMAPI.ModBuildConfig.Analyzer.Tests/UnitTests.cs +++ b/src/SMAPI.ModBuildConfig.Analyzer.Tests/NetFieldAnalyzerTests.cs @@ -6,14 +6,14 @@ using StardewModdingAPI.ModBuildConfig.Analyzer; namespace SMAPI.ModBuildConfig.Analyzer.Tests { - /// <summary>Unit tests for the C# analyzers.</summary> + /// <summary>Unit tests for <see cref="NetFieldAnalyzer"/>.</summary> [TestFixture] - public class UnitTests : DiagnosticVerifier + public class NetFieldAnalyzerTests : DiagnosticVerifier { /********* ** Properties *********/ - /// <summary>Sample C# code which contains a simplified representation of Stardew Valley's <c>Netcode</c> types, and sample mod code with a {{test-code}} placeholder for the code being tested.</summary> + /// <summary>Sample C# mod code, with a {{test-code}} placeholder for the code in the Entry method to test.</summary> const string SampleProgram = @" using System; using StardewValley; @@ -88,13 +88,13 @@ namespace SMAPI.ModBuildConfig.Analyzer.Tests public void AvoidImplicitNetFieldComparisons_RaisesDiagnostic(string codeText, int column, string expression, string fromType, string toType) { // arrange - string code = UnitTests.SampleProgram.Replace("{{test-code}}", codeText); + string code = NetFieldAnalyzerTests.SampleProgram.Replace("{{test-code}}", codeText); DiagnosticResult expected = new DiagnosticResult { Id = "SMAPI001", Message = $"This implicitly converts '{expression}' from {fromType} to {toType}, but {fromType} has unintuitive implicit conversion rules. Consider comparing against the actual value instead to avoid bugs. See https://smapi.io/buildmsg/smapi001 for details.", Severity = DiagnosticSeverity.Warning, - Locations = new[] { new DiagnosticResultLocation("Test0.cs", UnitTests.SampleCodeLine, UnitTests.SampleCodeColumn + column) } + Locations = new[] { new DiagnosticResultLocation("Test0.cs", NetFieldAnalyzerTests.SampleCodeLine, NetFieldAnalyzerTests.SampleCodeColumn + column) } }; // assert @@ -114,13 +114,13 @@ namespace SMAPI.ModBuildConfig.Analyzer.Tests public void AvoidNetFields_RaisesDiagnostic(string codeText, int column, string expression, string netType, string suggestedProperty) { // arrange - string code = UnitTests.SampleProgram.Replace("{{test-code}}", codeText); + string code = NetFieldAnalyzerTests.SampleProgram.Replace("{{test-code}}", codeText); DiagnosticResult expected = new DiagnosticResult { Id = "SMAPI002", Message = $"'{expression}' is a {netType} field; consider using the {suggestedProperty} property instead. See https://smapi.io/buildmsg/smapi002 for details.", Severity = DiagnosticSeverity.Warning, - Locations = new[] { new DiagnosticResultLocation("Test0.cs", UnitTests.SampleCodeLine, UnitTests.SampleCodeColumn + column) } + Locations = new[] { new DiagnosticResultLocation("Test0.cs", NetFieldAnalyzerTests.SampleCodeLine, NetFieldAnalyzerTests.SampleCodeColumn + column) } }; // assert diff --git a/src/SMAPI.ModBuildConfig.Analyzer.Tests/ObsoleteFieldAnalyzerTests.cs b/src/SMAPI.ModBuildConfig.Analyzer.Tests/ObsoleteFieldAnalyzerTests.cs new file mode 100644 index 00000000..dc7476ef --- /dev/null +++ b/src/SMAPI.ModBuildConfig.Analyzer.Tests/ObsoleteFieldAnalyzerTests.cs @@ -0,0 +1,88 @@ +using Microsoft.CodeAnalysis; +using Microsoft.CodeAnalysis.Diagnostics; +using NUnit.Framework; +using SMAPI.ModBuildConfig.Analyzer.Tests.Framework; +using StardewModdingAPI.ModBuildConfig.Analyzer; + +namespace SMAPI.ModBuildConfig.Analyzer.Tests +{ + /// <summary>Unit tests for <see cref="ObsoleteFieldAnalyzer"/>.</summary> + [TestFixture] + public class ObsoleteFieldAnalyzerTests : DiagnosticVerifier + { + /********* + ** Properties + *********/ + /// <summary>Sample C# mod code, with a {{test-code}} placeholder for the code in the Entry method to test.</summary> + const string SampleProgram = @" + using System; + using StardewValley; + using Netcode; + using SObject = StardewValley.Object; + + namespace SampleMod + { + class ModEntry + { + public void Entry() + { + {{test-code}} + } + } + } + "; + + /// <summary>The line number where the unit tested code is injected into <see cref="SampleProgram"/>.</summary> + private const int SampleCodeLine = 13; + + /// <summary>The column number where the unit tested code is injected into <see cref="SampleProgram"/>.</summary> + private const int SampleCodeColumn = 25; + + + /********* + ** Unit tests + *********/ + /// <summary>Test that no diagnostics are raised for an empty code block.</summary> + [TestCase] + public void EmptyCode_HasNoDiagnostics() + { + // arrange + string test = @""; + + // assert + this.VerifyCSharpDiagnostic(test); + } + + /// <summary>Test that the expected diagnostic message is raised for an obsolete field reference.</summary> + /// <param name="codeText">The code line to test.</param> + /// <param name="column">The column within the code line where the diagnostic message should be reported.</param> + /// <param name="oldName">The old field name which should be reported.</param> + /// <param name="newName">The new field name which should be reported.</param> + [TestCase("var x = new Farmer().friendships;", 8, "StardewValley.Farmer.friendships", "friendshipData")] + public void AvoidObsoleteField_RaisesDiagnostic(string codeText, int column, string oldName, string newName) + { + // arrange + string code = ObsoleteFieldAnalyzerTests.SampleProgram.Replace("{{test-code}}", codeText); + DiagnosticResult expected = new DiagnosticResult + { + Id = "SMAPI003", + Message = $"The '{oldName}' field is obsolete and should be replaced with '{newName}'. See https://smapi.io/buildmsg/smapi003 for details.", + Severity = DiagnosticSeverity.Warning, + Locations = new[] { new DiagnosticResultLocation("Test0.cs", ObsoleteFieldAnalyzerTests.SampleCodeLine, ObsoleteFieldAnalyzerTests.SampleCodeColumn + column) } + }; + + // assert + this.VerifyCSharpDiagnostic(code, expected); + } + + + /********* + ** Helpers + *********/ + /// <summary>Get the analyzer being tested.</summary> + protected override DiagnosticAnalyzer GetCSharpDiagnosticAnalyzer() + { + return new ObsoleteFieldAnalyzer(); + } + } +} diff --git a/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs b/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs new file mode 100644 index 00000000..00565329 --- /dev/null +++ b/src/SMAPI.ModBuildConfig.Analyzer/ObsoleteFieldAnalyzer.cs @@ -0,0 +1,98 @@ +using System; +using System.Collections.Generic; +using System.Collections.Immutable; +using Microsoft.CodeAnalysis; +using Microsoft.CodeAnalysis.CSharp; +using Microsoft.CodeAnalysis.CSharp.Syntax; +using Microsoft.CodeAnalysis.Diagnostics; + +namespace StardewModdingAPI.ModBuildConfig.Analyzer +{ + /// <summary>Detects references to a field which has been replaced.</summary> + [DiagnosticAnalyzer(LanguageNames.CSharp)] + public class ObsoleteFieldAnalyzer : DiagnosticAnalyzer + { + /********* + ** Properties + *********/ + /// <summary>Maps obsolete fields/properties to their non-obsolete equivalent.</summary> + private readonly IDictionary<string, string> ReplacedFields = new Dictionary<string, string> + { + // Farmer + ["StardewValley.Farmer::friendships"] = "friendshipData" + }; + + /// <summary>Describes the diagnostic rule covered by the analyzer.</summary> + private readonly IDictionary<string, DiagnosticDescriptor> Rules = new Dictionary<string, DiagnosticDescriptor> + { + ["SMAPI003"] = new DiagnosticDescriptor( + id: "SMAPI003", + title: "Reference to obsolete field", + messageFormat: "The '{0}' field is obsolete and should be replaced with '{1}'. See https://smapi.io/buildmsg/smapi003 for details.", + category: "SMAPI.CommonErrors", + defaultSeverity: DiagnosticSeverity.Warning, + isEnabledByDefault: true, + helpLinkUri: "https://smapi.io/buildmsg/smapi003" + ) + }; + + + /********* + ** Accessors + *********/ + /// <summary>The descriptors for the diagnostics that this analyzer is capable of producing.</summary> + public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics { get; } + + + /********* + ** Public methods + *********/ + /// <summary>Construct an instance.</summary> + public ObsoleteFieldAnalyzer() + { + this.SupportedDiagnostics = ImmutableArray.CreateRange(this.Rules.Values); + } + + /// <summary>Called once at session start to register actions in the analysis context.</summary> + /// <param name="context">The analysis context.</param> + public override void Initialize(AnalysisContext context) + { + // SMAPI003: avoid obsolete fields + context.RegisterSyntaxNodeAction( + this.AnalyzeObsoleteFields, + SyntaxKind.SimpleMemberAccessExpression + ); + } + + + /********* + ** Private methods + *********/ + /// <summary>Analyse a syntax node and add a diagnostic message if it references an obsolete field.</summary> + /// <param name="context">The analysis context.</param> + private void AnalyzeObsoleteFields(SyntaxNodeAnalysisContext context) + { + try + { + // get reference info + MemberAccessExpressionSyntax node = (MemberAccessExpressionSyntax)context.Node; + ITypeSymbol declaringType = context.SemanticModel.GetTypeInfo(node.Expression).Type; + string propertyName = node.Name.Identifier.Text; + + // suggest replacement + for (ITypeSymbol type = declaringType; type != null; type = type.BaseType) + { + if (this.ReplacedFields.TryGetValue($"{type}::{propertyName}", out string replacement)) + { + context.ReportDiagnostic(Diagnostic.Create(this.Rules["SMAPI003"], context.Node.GetLocation(), $"{type}.{propertyName}", replacement)); + break; + } + } + } + catch (Exception ex) + { + throw new InvalidOperationException($"Failed processing expression: '{context.Node}'. Exception details: {ex.ToString().Replace('\r', ' ').Replace('\n', ' ')}"); + } + } + } +} |