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ILLink: extra warning for generic parameter with new constraint and annotation #119290

Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
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sbomercopilot-swe-agent
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area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0

Description

@sbomer
sbomer
opened on Sep 2, 2025

Repro:

// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;

This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:

  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
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btn.onmouseout = function() { this.style.opacity = '0.7'; };
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btn.textContent = 'Copied!';
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observer.observe(document.body, { childList: true, subtree: true });
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
Parent Item
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area-Tools-ILLink.NET linker development as well as trimming analyzers
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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var ref = document.referrer;
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if (terms.length === 0) return;
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style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
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Array.from(node.childNodes).forEach(highlight);
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highlight(document.body);
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mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
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observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
Parent Item
Metadata
Metadata
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area-Tools-ILLink.NET linker development as well as trimming analyzers
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
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mutations.forEach(function(m) {
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if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
Parent Item
Metadata
Metadata
Assignees
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area-Tools-ILLink.NET linker development as well as trimming analyzers
Type
No type
Projects
  • AppModel
    Status
    No status
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Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
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btn.click();
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lastUrl = location.href;
setTimeout(tryTheater, 500);
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var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
Parent Item
Metadata
Metadata
Assignees
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Type
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  • AppModel
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Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
Parent Item
Metadata
Metadata
Assignees
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
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    No status
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Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
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if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
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applyDarkMode();
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removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
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applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
ILLink: extra warning for generic parameter with new constraint and annotation · Issue #119290 · dotnet/runtime · GitHub
Skip to content
ILLink: extra warning for generic parameter with new constraint and annotation #119290
Closed
#119419
Closed
ILLink: extra warning for generic parameter with new constraint and annotation#119290
#119419
Assignees
sbomercopilot-swe-agent
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Milestone
11.0.0
Description
@sbomer
sbomer
opened on Sep 2, 2025
Repro:
// IL2026 for type (ILLink produces this twice)classClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation:RequiresNewAndConstructors<ClassWithRequires>{// IL2026 (ILLink produces this twice)publicClassWithWarningOnGenericArgumentConstructor_NewAndAnnotation(){}}classRequiresNewAndConstructors<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]T>whereT:new();[RequiresUnreferencedCode("Message for --ClassWithRequires--")]classClassWithRequires;
This produces a warning on the type and on the implicit call to the base constructor (ILLink and ILC both do this). But ILLink produces two of each. That's because:
  • ILC handles the new constraint by treating it like PublicParameterlessConstructor annotations
  • ILLink handles the new constraint separately, while marking generic argument types
Parent Item
Metadata
Metadata
Assignees
Labels
area-Tools-ILLink.NET linker development as well as trimming analyzers
Type
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