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[Compile Time Constant Extraction] Extraction support for force unwrapped optionals #85047

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Merged
merged 1 commit into from
Oct 23, 2025
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[Compile Time Constant Extraction] Extraction support for force unwrapped optionals #85047

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5 changes: 5 additions & 0 deletions lib/ConstExtract/ConstExtract.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -519,6 +519,11 @@ extractCompileTimeValue(Expr *expr, const DeclContext *declContext) {
return extractCompileTimeValue(openExistentialExpr->getExistentialValue(), declContext);
}

case ExprKind::ForceValue: {
auto forceValueExpr = cast<ForceValueExpr>(expr);
return extractCompileTimeValue(forceValueExpr->getSubExpr(), declContext);
}

default: {
break;
}
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48 changes: 48 additions & 0 deletions test/ConstExtraction/ExtractForceValue.swift
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@@ -0,0 +1,48 @@
// RUN: %empty-directory(%t)
// RUN: echo "[MyProto]" > %t/protocols.json

// RUN: %target-swift-frontend -typecheck -emit-const-values-path %t/ExtractForceValue.swiftconstvalues -const-gather-protocols-file %t/protocols.json -primary-file %s
// RUN: cat %t/ExtractForceValue.swiftconstvalues 2>&1 | %FileCheck %s

protocol MyProto {}

class CustomKey {
init?() {

}
}
struct MyStruct: MyProto {
let prop1: CustomKey = CustomKey()!
let prop2: CustomKey! = CustomKey()
}

// CHECK: "properties": [
// CHECK-NEXT: {
// CHECK-NEXT: "label": "prop1",
// CHECK-NEXT: "type": "ExtractForceValue.CustomKey",
// CHECK-NEXT: "mangledTypeName": "n/a - deprecated",
// CHECK-NEXT: "isStatic": "false",
// CHECK-NEXT: "isComputed": "false",
// CHECK-NEXT: "file": "{{.*}}test{{/|\\\\}}ConstExtraction{{/|\\\\}}ExtractForceValue.swift",
// CHECK-NEXT: "line": 15,
// CHECK-NEXT: "valueKind": "InitCall",
// CHECK-NEXT: "value": {
// CHECK-NEXT: "type": "Swift.Optional<ExtractForceValue.CustomKey>",
// CHECK-NEXT: "arguments": []
// CHECK-NEXT: }
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "label": "prop2",
// CHECK-NEXT: "type": "Swift.Optional<ExtractForceValue.CustomKey>",
// CHECK-NEXT: "mangledTypeName": "n/a - deprecated",
// CHECK-NEXT: "isStatic": "false",
// CHECK-NEXT: "isComputed": "false",
// CHECK-NEXT: "file": "{{.*}}test{{/|\\\\}}ConstExtraction{{/|\\\\}}ExtractForceValue.swift",
// CHECK-NEXT: "line": 16,
// CHECK-NEXT: "valueKind": "InitCall",
// CHECK-NEXT: "value": {
// CHECK-NEXT: "type": "Swift.Optional<ExtractForceValue.CustomKey>",
// CHECK-NEXT: "arguments": []
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: ]