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Complete filename/naming remediation with PascalCase convention

This commit is contained in:
Brendan Szymanski 2026-07-17 22:48:16 -04:00
parent b61512c4eb
commit 321b42f9af
7 changed files with 429 additions and 17 deletions

View file

@ -230,4 +230,34 @@ struct RealGIRParsingTests {
}
#expect(!nonIntrospectable.isEmpty, "GTK has non-introspectable methods that must be recognized")
}
/// Every filename rendered from the real tier-1 GIRs must follow the
/// PascalCase convention the end-to-end lock that keeps future codegen
/// from reintroducing symbol-named files (`boxedFree.swift`,
/// `PARAM_MASK.swift`, `cclosureMarshalBOOLEANFLAGS.swift`).
@Test(.enabled(if: hasGIR("GLib-2.0.gir") && hasGIR("GObject-2.0.gir")))
func generatedFilenamesArePascalCase() throws {
let repositories = [
"GLib": try Self.parse("GLib-2.0.gir"),
"GObject": try Self.parse("GObject-2.0.gir"),
]
let analysis = MultiPackageAnalysis(
repositories: repositories,
directDependencies: [:], transitiveDependencies: [:],
implicitImports: [:], packageConfigs: [:]
)
let registry = TypeRegistry(repositories: repositories)
let plans = planModules(analysis: analysis, registry: registry)
#expect(plans.count == 2)
for (module, plan) in plans {
let files = renderModule(plan)
let violations = files.keys.filter { !isValidGeneratedFileName($0) }
#expect(violations.isEmpty,
"\(module) emitted non-PascalCase filenames: \(violations.sorted())")
// The merge targets must actually exist an empty module would
// vacuously pass the check above.
#expect(files["Functions.swift"] != nil)
#expect(files["Constants.swift"] != nil)
}
}
}

View file

@ -29,7 +29,7 @@ struct FunctionGenerationTests {
}
/// Renders a single planned callable to Swift source via the public module
/// renderer, returning the callable's file body.
/// renderer, returning the merged `Functions.swift` body it lands in.
func render(_ plan: CallablePlan) -> String {
let module = ModulePlan(
module: "GLib",
@ -38,7 +38,7 @@ struct FunctionGenerationTests {
coverage: CoverageStats()
)
let files = renderModule(module)
return files["\(plan.name).swift"] ?? ""
return files["Functions.swift"] ?? ""
}
// MARK: - Plannable callables

View file

@ -0,0 +1,160 @@
// NamingTests.swift
// Locks in the generated naming conventions: symbol case conversion
// (uppercase GIR segments fold to words, constants become lowerCamelCase),
// the PascalCase filename rule with merged Functions.swift/Constants.swift
// files, and collision handling when case conversion merges distinct GIR
// names. A regression here means generated packages stop following Swift
// naming conventions.
import Testing
@testable import SwiftGtkGenCore
@Suite("Naming conventions")
struct NamingTests {
// MARK: - Symbol case conversion
@Test("Uppercase GIR segments fold to single words")
func uppercaseSegmentsNormalize() {
// The marshal symbols are the canonical offenders: uppercase segments
// and a double underscore that must not glue words together.
#expect(camelCased("cclosure_marshal_BOOLEAN__BOXED_BOXED") == "cclosureMarshalBooleanBoxedBoxed")
#expect(camelCased("cclosure_marshal_VOID__UINT_POINTER") == "cclosureMarshalVoidUintPointer")
// Ordinary snake_case is unaffected.
#expect(camelCased("set_application_name") == "setApplicationName")
// Mixed-case segments pass through untouched.
#expect(camelCased("show") == "show")
}
@Test("Constants convert to lowerCamelCase")
func constantNames() {
#expect(swiftConstantName("PARAM_MASK") == "paramMask")
#expect(swiftConstantName("TYPE_FLAG_RESERVED_ID_BIT") == "typeFlagReservedIdBit")
#expect(swiftConstantName("PI_2") == "pi2")
#expect(swiftConstantName("E") == "e")
}
// MARK: - Filename convention
@Test("Filename validator accepts PascalCase and infra names only")
func filenameValidation() {
#expect(isValidGeneratedFileName("Align.swift"))
#expect(isValidGeneratedFileName("IOChannel.swift")) // 3-cap acronym run
#expect(isValidGeneratedFileName("FileIOStream.swift"))
#expect(isValidGeneratedFileName("_Support.swift")) // infra prefix
#expect(isValidGeneratedFileName("ParamSpecInt64.swift")) // digits
#expect(!isValidGeneratedFileName("boxedFree.swift")) // lowerCamelCase
#expect(!isValidGeneratedFileName("PARAM_MASK.swift")) // SCREAMING_SNAKE
#expect(!isValidGeneratedFileName("CSET_a_2_z.swift")) // underscores
#expect(!isValidGeneratedFileName("cclosureMarshalBOOLEANFLAGS.swift")) // uppercase run
#expect(!isValidGeneratedFileName("MarshalBOOLEAN.swift")) // run > 3 caps
#expect(!isValidGeneratedFileName("Align.txt")) // wrong extension
}
// MARK: - File merging
/// A context whose registry contains only the GLib namespace under test.
func makeContext(_ ns: Namespace) -> MapContext {
let repo = Repository(namespaces: [ns])
let registry = TypeRegistry(repositories: ["GLib": repo])
return MapContext(registry: registry, currentModule: "GLib", currentNamespace: "GLib")
}
/// Plans a synthetic namespace through the public `planModules` entry
/// point and returns its module plan.
func plan(_ ns: Namespace) -> ModulePlan {
let repo = Repository(namespaces: [ns])
let analysis = MultiPackageAnalysis(
repositories: ["GLib": repo],
directDependencies: [:], transitiveDependencies: [:],
implicitImports: [:], packageConfigs: [:]
)
let registry = TypeRegistry(repositories: ["GLib": repo])
return planModules(analysis: analysis, registry: registry)["GLib"]!
}
@Test("Free functions merge into Functions.swift with MARK sections")
func functionsMerge() {
let ns = Namespace(
name: "GLib", version: "2.0",
functions: [
GlobalFunction(name: "ascii_strup", cIdentifier: "g_ascii_strup",
parameters: [Parameter(name: "str", type: .string, cType: "const gchar*")],
returnValue: ReturnValue(type: .string, transferOwnership: .full)),
GlobalFunction(name: "unichar_istitle", cIdentifier: "g_unichar_istitle",
parameters: [Parameter(name: "c", type: .unichar, cType: "gunichar")],
returnValue: ReturnValue(type: .boolean)),
]
)
let files = renderModule(plan(ns))
let source = files["Functions.swift"] ?? ""
#expect(files["asciiStrup.swift"] == nil)
#expect(source.contains("public func asciiStrup"))
#expect(source.contains("public func unicharIstitle"))
#expect(source.contains("// MARK: - Ascii"))
#expect(source.contains("// MARK: - Unichar"))
}
@Test("Constants merge into Constants.swift as lowerCamelCase with C name in docs")
func constantsMerge() {
let ns = Namespace(
name: "GLib", version: "2.0",
constants: [Constant(name: "PARAM_MASK", value: "255", type: .int32)]
)
let files = renderModule(plan(ns))
let source = files["Constants.swift"] ?? ""
#expect(files["PARAM_MASK.swift"] == nil)
#expect(source.contains("public nonisolated let paramMask: Int32 = 255"))
#expect(source.contains("/// Binds the GIR constant `PARAM_MASK`."))
}
@Test("Case-conversion collisions keep the first constant and skip the rest")
func constantCollision() {
// GLib really has this pair: both convert to `csetA2Z`.
let ns = Namespace(
name: "GLib", version: "2.0",
constants: [
Constant(name: "CSET_A_2_Z", value: "ABC", type: .string),
Constant(name: "CSET_a_2_z", value: "abc", type: .string),
]
)
let modulePlan = plan(ns)
let constants = modulePlan.types.compactMap { plan -> ConstantPlan? in
if case .constant(let c) = plan { return c } else { return nil }
}
#expect(constants.map(\.name) == ["csetA2Z"])
#expect(constants.first?.girName == "CSET_A_2_Z")
let collisions = modulePlan.skips.filter { $0.reason == .nameCollision }
#expect(collisions.map(\.cIdentifier) == ["CSET_a_2_z"])
}
@Test("Cross-category collision: constant and function folding to same Swift name")
func constantFunctionCollision() {
// GLib has ATOMIC_REF_COUNT_INIT (constant) and
// atomic_ref_count_init (function) both map to atomicRefCountInit.
// Functions win over constants, so the constant is skipped.
let ns = Namespace(
name: "GLib", version: "2.0",
functions: [
GlobalFunction(name: "atomic_ref_count_init", cIdentifier: "g_atomic_ref_count_init",
parameters: [], returnValue: ReturnValue(type: .void)),
],
constants: [
Constant(name: "ATOMIC_REF_COUNT_INIT", value: "1", type: .int32),
]
)
let modulePlan = plan(ns)
let constants = modulePlan.types.compactMap { plan -> ConstantPlan? in
if case .constant(let c) = plan { return c } else { return nil }
}
let callables = modulePlan.types.compactMap { plan -> CallablePlan? in
if case .callable(let fn) = plan { return fn } else { return nil }
}
#expect(callables.map(\.name) == ["atomicRefCountInit"])
#expect(callables.first?.cIdentifier == "g_atomic_ref_count_init")
#expect(constants.isEmpty)
let collisions = modulePlan.skips.filter { $0.reason == .nameCollision }
#expect(collisions.map(\.cIdentifier) == ["ATOMIC_REF_COUNT_INIT"])
}
}