SharpMath 2.0: .NET 10, immutable geometry, cross-platform canvas renderers

.editorconfig

@@ -0,0 +1,52 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 4
+
+[*.{csproj,props,targets,slnx,xml,axaml,resx,json,yml,yaml}]
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.cs]
+# Namespaces and usings
+csharp_style_namespace_declarations = file_scoped:warning
+dotnet_diagnostic.IDE0161.severity = warning
+dotnet_sort_system_directives_first = true
+dotnet_diagnostic.IDE0005.severity = warning
+
+# Braces and layout (Allman; braces optional for single-line statements)
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_prefer_braces = when_multiline:suggestion
+
+# var and expression bodies
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+csharp_style_expression_bodied_methods = when_on_single_line:suggestion
+csharp_style_expression_bodied_properties = true:suggestion
+csharp_style_expression_bodied_operators = when_on_single_line:suggestion
+
+# Modern language features
+csharp_style_prefer_primary_constructors = true:suggestion
+dotnet_style_prefer_collection_expression = when_types_loosely_match:suggestion
+csharp_style_prefer_pattern_matching = true:suggestion
+csharp_style_prefer_switch_expression = true:suggestion
+
+# Naming: private fields are _camelCase
+dotnet_naming_rule.private_fields_underscore.symbols = private_fields
+dotnet_naming_rule.private_fields_underscore.style = underscore_camel
+dotnet_naming_rule.private_fields_underscore.severity = suggestion
+dotnet_naming_symbols.private_fields.applicable_kinds = field
+dotnet_naming_symbols.private_fields.applicable_accessibilities = private
+dotnet_naming_style.underscore_camel.required_prefix = _
+dotnet_naming_style.underscore_camel.capitalization = camel_case

.github/workflows/ci.yml

@@ -0,0 +1,57 @@
+name: CI
+
+on:
+  push:
+    branches: [master, "refactor/**"]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    name: Build and test (${{ matrix.os }})
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    env:
+      DOTNET_NOLOGO: true
+      DOTNET_CLI_TELEMETRY_OPTOUT: true
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - uses: actions/setup-dotnet@v6
+        with:
+          global-json-file: global.json
+
+      - name: Restore
+        run: dotnet restore SharpMath.slnx
+
+      # Builds everything, including the WinForms projects (EnableWindowsTargeting), samples and benchmarks.
+      - name: Build
+        run: dotnet build SharpMath.slnx --configuration Release --no-restore
+
+      # The WinForms tests only run on Windows; elsewhere their project is not a test project.
+      - name: Test
+        run: dotnet test --solution SharpMath.slnx --configuration Release --no-build
+
+      - name: Collect coverage
+        if: runner.os == 'Linux'
+        run: |
+          dotnet test --project tests/SharpMath.Tests --configuration Release --no-build --coverage --coverage-output-format cobertura --coverage-output core.cobertura.xml --results-directory coverage
+          dotnet test --project tests/SharpMath.Canvas.Tests --configuration Release --no-build --coverage --coverage-output-format cobertura --coverage-output canvas.cobertura.xml --results-directory coverage
+
+      - name: Check coverage (at least 90 % line coverage)
+        if: runner.os == 'Linux'
+        run: dotnet run eng/CheckCoverage.cs -- 90 coverage/core.cobertura.xml=SharpMath coverage/canvas.cobertura.xml=SharpMath.Canvas
+
+      - name: Upload coverage
+        if: runner.os == 'Linux' && always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: coverage
+          path: coverage/*.cobertura.xml
+          if-no-files-found: ignore