James Cullimore LethalMaus
LethalMaus
/ dejavu-cleaner-fix-runtime.kt
Created
May 7, 2026 19:50
Dejavu cleaner runtime fix for article
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| package dejavu.internal | |
| import android.app.Activity | |
| import android.app.Application | |
| import android.os.Bundle | |
| import androidx.compose.runtime.tooling.CompositionData | |
| import java.lang.ref.WeakReference | |
| import java.lang.reflect.Field | |
| import java.util.Collections | |
| import java.util.IdentityHashMap |
LethalMaus
/ dejavu-minimal-fix-rule.kt
Created
May 7, 2026 19:50
Dejavu minimal rule fix for article
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| package dejavu | |
| import androidx.activity.ComponentActivity | |
| import androidx.compose.ui.test.junit4.ComposeContentTestRule | |
| import androidx.compose.ui.test.junit4.ComposeTestRule | |
| import androidx.compose.ui.test.junit4.AndroidComposeTestRule | |
| import androidx.compose.ui.test.junit4.createAndroidComposeRule | |
| import androidx.test.ext.junit.rules.ActivityScenarioRule | |
| import org.junit.runner.Description | |
| import org.junit.runners.model.Statement |
LethalMaus
/ dejavu-mapping-repro-test.kt
Created
May 7, 2026 19:50
Dejavu mapping repro test for article
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| package dev.repro.dejavu | |
| import androidx.activity.ComponentActivity | |
| import androidx.compose.runtime.getValue | |
| import androidx.compose.runtime.mutableStateOf | |
| import androidx.compose.runtime.setValue | |
| import androidx.compose.ui.test.junit4.ComposeTestRule | |
| import androidx.compose.ui.test.onNodeWithTag | |
| import androidx.test.ext.junit.runners.AndroidJUnit4 | |
| import dejavu.assertRecompositions |
LethalMaus
/ dejavu-mapping-repro-screen.kt
Created
May 7, 2026 19:50
Dejavu mapping repro screen for article
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| package dev.repro.dejavu | |
| import androidx.compose.foundation.layout.Box | |
| import androidx.compose.foundation.layout.Column | |
| import androidx.compose.foundation.layout.Spacer | |
| import androidx.compose.foundation.layout.fillMaxSize | |
| import androidx.compose.foundation.layout.fillMaxWidth | |
| import androidx.compose.foundation.layout.height | |
| import androidx.compose.foundation.layout.padding | |
| import androidx.compose.material3.Card |
LethalMaus
/ deferred-runtime-startup-code.kt
Last active
April 9, 2026 19:31
Deferred runtime startup code
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| onStartupRouteReady { | |
| postToNextUiTurn { | |
| waitBrieflyForFirstFrameToSettle() | |
| trace("DeferredRuntimeStartup") { | |
| startBackgroundService() | |
| requestMissingStorageAccessIfNeeded() | |
| initializeFileWatcher() | |
| connectRuntimeClient() | |
| } |
LethalMaus
/ post-draw-startup-deferral-pseudocode.kt
Created
April 9, 2026 19:15
Post-draw startup deferral pseudocode for article
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| var postDrawWorkEnabled by remember { mutableStateOf(false) } | |
| onFirstFrameRendered { | |
| markStartupComplete() | |
| postDrawWorkEnabled = true | |
| } | |
| onScreenVisible(postDrawWorkEnabled) { | |
| updateConnectivityFlags() | |
| if (postDrawWorkEnabled) { |
LethalMaus
/ perfetto-trace-slices-pseudocode.kt
Last active
April 9, 2026 19:31
Perfetto trace slice naming code
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| trace("AppStartup") { | |
| registerEarlyListeners() | |
| resolveInitialState() | |
| renderRootUi() | |
| } | |
| trace("RuntimeConnect") { | |
| startLocalWatchers() | |
| createRuntimeClient() | |
| openRuntimeConnection() |
LethalMaus
/ host_test_script_inspect.sh
Created
April 1, 2026 20:55
TrustKeyService: adb host inspect script snippet
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| adb shell am broadcast \ | |
| -n "$RECEIVER" \ | |
| -a "$PACKAGE.action.EXECUTE_COMMAND" \ | |
| --es request_id "$request_id" \ | |
| --es operation inspect \ | |
| --es alias "$alias" >/dev/null | |
| adb logcat -d -s "$TAG:I" |
LethalMaus
/ keystore_security_verdict.kt
Created
April 1, 2026 20:55
TrustKeyService: Android Keystore security verdict helper
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| @Suppress("DEPRECATION") | |
| private fun KeyInfo.toSecurityVerdict(): String { | |
| if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) { | |
| return if (isInsideSecureHardware) "HARDWARE_BACKED" else "SOFTWARE_BACKED" | |
| } | |
| return when (securityLevel) { | |
| KeyProperties.SECURITY_LEVEL_SOFTWARE -> "SOFTWARE_BACKED" | |
| KeyProperties.SECURITY_LEVEL_TRUSTED_ENVIRONMENT -> "HARDWARE_BACKED_TEE" | |
| KeyProperties.SECURITY_LEVEL_STRONGBOX -> "HARDWARE_BACKED_STRONGBOX" |
LethalMaus
/ keystore_key_generation.kt
Created
April 1, 2026 20:55
TrustKeyService: Android Keystore AES key generation snippet
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| val builder = KeyGenParameterSpec.Builder( | |
| alias, | |
| KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT, | |
| ).setBlockModes(KeyProperties.BLOCK_MODE_GCM) | |
| .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE) | |
| .setRandomizedEncryptionRequired(true) | |
| .setKeySize(256) | |
| if (requestStrongBox && Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) { | |
| builder.setIsStrongBoxBacked(true) |
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