Full Test Failure Report - 2026-03-27

Prioritized fail list: docs/diagnostics/full_test_failures_prioritized_2026-03-27.md

Run Summary

• Primary command: .\morphc.bat build --test
• Primary result: build passed, test phase collapsed to unit all
• Primary log: full_test_run_2026-03-27.log
• Diagnostic follow-up: ran morph_unit_tests.exe with PATH=<build-bin>;C:\msys64\mingw64\bin;%PATH%
• Diagnostic result: the unit binary started correctly, exposed 41 explicit [ FAIL ] tests, then terminated without a clean suite summary
• Diagnostic log: full_unit_tests_with_path_2026-03-27.log

Infrastructure Findings

ID	Symptom	Observed evidence	Likely cause	Confidence
RC-0	morphc build --test reports only unit all	morph_unit_tests.exe exits with -1073741515; the same binary starts once PATH includes build bin and C:\msys64\mingw64\bin	Test-runner environment is missing runtime DLL search paths, so the loader fails before main()	High
RC-10	PATH-fixed unit run still does not end cleanly	Late in the run the process throws morphlang::codegen::CodegenDiagnosticError: backend route could not cast LLVM value from 'ptr' to 'i64'	Unhandled codegen exception aborts the tail of the suite and may hide additional failures after the last printed test	High

Probable Cause Legend

Cause ID	Area	Working hypothesis	Representative files
RC-1	LSP localization / diagnostic metadata	Localized diagnostic catalog entries or metadata propagation are missing after recent diagnostic pipeline changes	tests/lsp/test_diagnostic_fixes.cpp, tests/lsp/test_diagnostic_localization.cpp
RC-2	Expression parser disambiguation	The new grouped-expression / lambda / statement-form parser path regressed existing if-expression and arrow-lambda behavior	tests/sema/test_semantic.cpp
RC-3	Semantic symbol descriptors	Field/member descriptors exposed to navigation APIs no longer match expected fieldStorage shape	tests/sema/test_semantic.cpp
RC-4	Plugin-owned graphics / test feature registration	Morph-owned or plugin-owned graphics/test features are no longer registered into semantic facts consistently	tests/sema/test_semantic.cpp, tests/nir/test_nir_builder.cpp
RC-5	Type system / Input enum semantics	Enum, Input<T>, cast, or return-type validation changed unexpectedly	tests/sema/test_semantic.cpp, tests/nir/test_nir_builder.cpp
RC-6	VCON / domain routing	Source-to-domain routing and project entry resolution are no longer stable	tests/vcon/test_domain_routing.cpp, tests/nir/test_morph_optimizer.cpp
RC-7	VCON VM runtime semantics	VM execution or cast semantics regressed for basic and nullable cast flows	tests/vcon/test_vm.cpp
RC-8	NIR lowering / type propagation	Lowering is missing semantic feature facts, preserving wrong types, or emitting changed IR	tests/nir/test_nir_builder.cpp, tests/nir/test_optimizer_part02.inc
RC-9	Morph workspace / manifest validation	Package discovery, manifest validation, domain registration, or package graph filtering changed unexpectedly	tests/nir/test_morph_optimizer.cpp, tests/nir/test_morph_package_enablement.cpp

Explicit Failing Tests

Failing test	Short symptom	Probable cause IDs
DiagnosticFixRegistryProvidesUnusedBindingFixFromMetadataFixId	Diagnostic metadata is missing where the fix registry expects it	RC-1
DiagnosticLocalizerLoadsLocalizedCatalogEntries	Localized catalog lookup does not return the expected entry	RC-1
DocumentManagerLocalizesDiagnosticsUsingResolvedLanguage	Resolved document language is not producing localized diagnostics	RC-1
DiagnosticLocalizerRendersTemplateArgumentsFromCatalog	Localized template substitution no longer matches expected rendered text	RC-1
DiagnosticLocalizerRendersUnknownIdentifierTemplateArguments	Unknown-identifier localization output changed unexpectedly	RC-1
DiagnosticLocalizerAttachesCatalogMetadataToRenderedDiagnostics	Localized diagnostics are missing expected catalog metadata	RC-1
ParserKeepsIfExpressionAvailableWhenStatementFormDoesNotMatch	Parser now yields semantic errors where if expression fallback should still be available	RC-2
ParserParsesArrowLambdaAndValueOfViaExpressionForms	Arrow-lambda or valueOf expression parsing regressed	RC-2
SemanticResolvedSymbolsExposeKindsForDefinitionsAndReferences	Definition/reference symbol kind no longer matches expected field descriptor	RC-3
SemanticProgramViewResolvesImportedSymbolsAcrossFiles	Imported symbol descriptors differ from expected field descriptor shape	RC-3
SemanticDocumentSymbolsIncludeMorphOwnedShaderDeclarations	Document symbol tree shape for morph-owned shader declarations changed	RC-3
SemanticTypeMemberLookupExposesClassMembers	Member lookup does not expose the expected class field symbol	RC-3
SemanticAcceptsEnumInterfaceStructAndDictionaryType	Type acceptance for enum/interface/struct/dictionary path regressed	RC-5
SemanticAllowsPluginOwnedGraphicsGoldenSnapshotsInsideTestBlock	Plugin-owned graphics golden snapshot API is rejected semantically	RC-4
SemanticInputGenericAcceptsEnumUsage	Input<T> enum usage is no longer accepted	RC-5
SemanticInputGenericRejectsSecretForEnumType	Expected enum-secret diagnostic is missing or changed	RC-5
SemanticCanvasOnFrameAcceptsTypedGraphicsV2Commands	Typed graphics V2 commands are no longer accepted in semantic analysis	RC-4
SemanticRejectsFloatLiteralReturnedFromIntMethod	Return-type mismatch detection for float -> int changed	RC-5
VconDomainRoutingResolvesNativeSourceFile	Native source file no longer resolves to a VCON build domain	RC-6
VconDomainRoutingResolvesProjectByRegisteredMainFile	Project root no longer resolves through registered main-file routing	RC-6
VconDomainRoutingRejectsAmbiguousProjectMainFiles	Ambiguous main-file routing no longer emits the expected error	RC-6
VconVmRunsSimpleProgram	Basic VM program execution fails	RC-7
VconVmRunsSuccessfulNullableCastProgram	VM nullable-cast success path fails	RC-7
VconVmRejectsInvalidRequiredCastProgram	Required-cast failure no longer emits the expected VM error	RC-7
VconVmAllowsInvalidNullableCastProgram	Nullable-cast permissive behavior regressed	RC-7
NirLowersPluginOwnedGraphicsGoldenSnapshotsInsideTestBlock	NIR lowering reports missing Morph-owned assert feature facts	RC-4, RC-8
NirLowersInputEnumChainIntoBuiltinCall	NIR lowering reports missing Morph-owned input feature facts	RC-5, RC-8
NirPreservesExplicitDynamicStorageType	NIR alloca/storage type is no longer preserved as Dynamic	RC-8
NirEmitsCastInstructionForCastPipeline	NIR cast result type no longer matches expected nullable float shape	RC-8
NirLowersDescriptorFieldAssignmentsToMaterialSetCalls	Graphics descriptor assignments no longer map to graphics.material.set_vec4 family	RC-4, RC-8
OptimizerPropagatesConstantsToReturn	Optimizer output diverges from the direct/reference pipeline	RC-8
MorphPackageManifestParsesRequiredFields	Manifest ABI/version expectations no longer match parser output	RC-9
MorphFrameworkVNextUsesCanonicalMorphTomlAndGeneratedBuildDiscovery	Expected canonical morph.toml discovery fixture is not found	RC-9
MorphWorkspaceLoadsLibrariesInDeterministicOrder	Loaded library set/order differs from the deterministic expectation	RC-9
MorphWorkspaceRejectsMissingDll	Missing plugin/DLL validation path no longer fails as expected	RC-9
DomainManifestRejectsMissingPlugins	Missing-plugin manifest validation path changed unexpectedly	RC-9
DomainManifestRejectsDuplicateSourceExtensions	Duplicate source-extension validation path changed unexpectedly	RC-9
DomainManifestResolvesSourcePathsToDomain	Source-path to domain resolution no longer matches manifest expectations	RC-6, RC-9
MorphLoweringOwnedSliceFailsWhenComponentIsMissing	Missing-component failure changed into a required-service / ABI mismatch error	RC-8, RC-9
MorphCoreRemovesWindowsPolicyOutsideMorphPackages	Repository invariant still detects Windows policy outside morph packages	RC-9
package_enablement_disables_domain_in_graph	Enabled-package graph filtering fails when a domain is disabled	RC-9

Prioritization

1. Fix RC-0 first so morphc build --test can surface real failures without manual PATH surgery.
2. Fix RC-10 next because the uncaught codegen exception can mask additional failing tests.
3. Then work top-down by blast radius: RC-9 package/workspace loading, RC-8 lowering/type propagation, RC-2 parser regressions, and finally RC-1 localization-only issues.