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BridgeJS: Gate @_extern/@expose usage behind arch(wasm32) 
1 parent c090528 commit 1f7a960

20 files changed

Lines changed: 530 additions & 51 deletions

‎Plugins/BridgeJS/Sources/BridgeJSTool/ExportSwift.swift‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -272,6 +272,7 @@ class ExportSwift {
272272
273273
@_spi(JSObject_id) import JavaScriptKit
274274
275+
#if arch(wasm32)
275276
@_extern(wasm, module: "bjs", name: "return_string")
276277
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
277278
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -281,6 +282,7 @@ class ExportSwift {
281282
private func _swift_js_retain(_ ptr: Int32) -> Int32
282283
@_extern(wasm, module: "bjs", name: "swift_js_throw")
283284
private func _swift_js_throw(_ id: Int32)
285+
#endif
284286
"""
285287

286288
func renderSwiftGlue() -> String? {
@@ -512,7 +514,11 @@ class ExportSwift {
512514
@_expose(wasm, "\(raw: abiName)")
513515
@_cdecl("\(raw: abiName)")
514516
public func _\(raw: abiName)(\(raw: parameterSignature())) -> \(raw: returnSignature()) {
517+
#if arch(wasm32)
515518
\(body)
519+
#else
520+
fatalError("Only available on WebAssembly")
521+
#endif
516522
}
517523
"""
518524
}

‎Plugins/BridgeJS/Sources/BridgeJSTool/ImportTS.swift‎

Lines changed: 47 additions & 22 deletions
Original file line numberDiff line numberDiff line change
@@ -241,29 +241,42 @@ struct ImportTS {
241241
}
242242

243243
func renderImportDecl() -> DeclSyntax {
244-
return DeclSyntax(
245-
FunctionDeclSyntax(
246-
attributes: AttributeListSyntax(itemsBuilder: {
247-
"@_extern(wasm, module: \"\(raw: moduleName)\", name: \"\(raw: abiName)\")"
248-
}).with(\.trailingTrivia, .newline),
249-
name: .identifier(abiName),
250-
signature: FunctionSignatureSyntax(
251-
parameterClause: FunctionParameterClauseSyntax(parametersBuilder: {
252-
for param in abiParameterSignatures {
253-
FunctionParameterSyntax(
254-
firstName: .wildcardToken(),
255-
secondName: .identifier(param.name),
256-
type: IdentifierTypeSyntax(name: .identifier(param.type.swiftType))
257-
)
258-
}
259-
}),
260-
returnClause: ReturnClauseSyntax(
261-
arrow: .arrowToken(),
262-
type: IdentifierTypeSyntax(name: .identifier(abiReturnType.map { $0.swiftType } ?? "Void"))
263-
)
244+
let baseDecl = FunctionDeclSyntax(
245+
funcKeyword: .keyword(.func).with(\.trailingTrivia, .space),
246+
name: .identifier(abiName),
247+
signature: FunctionSignatureSyntax(
248+
parameterClause: FunctionParameterClauseSyntax(parametersBuilder: {
249+
for param in abiParameterSignatures {
250+
FunctionParameterSyntax(
251+
firstName: .wildcardToken().with(\.trailingTrivia, .space),
252+
secondName: .identifier(param.name),
253+
type: IdentifierTypeSyntax(name: .identifier(param.type.swiftType))
254+
)
255+
}
256+
}),
257+
returnClause: ReturnClauseSyntax(
258+
arrow: .arrowToken(),
259+
type: IdentifierTypeSyntax(name: .identifier(abiReturnType.map { $0.swiftType } ?? "Void"))
264260
)
265261
)
266262
)
263+
var externDecl = baseDecl
264+
externDecl.attributes = AttributeListSyntax(itemsBuilder: {
265+
"@_extern(wasm, module: \"\(raw: moduleName)\", name: \"\(raw: abiName)\")"
266+
}).with(\.trailingTrivia, .newline)
267+
var stubDecl = baseDecl
268+
stubDecl.body = CodeBlockSyntax {
269+
"""
270+
fatalError("Only available on WebAssembly")
271+
"""
272+
}
273+
return """
274+
#if arch(wasm32)
275+
\(externDecl)
276+
#else
277+
\(stubDecl)
278+
#endif
279+
"""
267280
}
268281

269282
func renderThunkDecl(name: String, parameters: [Parameter], returnType: BridgeType) -> DeclSyntax {
@@ -328,11 +341,23 @@ struct ImportTS {
328341
329342
@_spi(JSObject_id) import JavaScriptKit
330343
344+
#if arch(wasm32)
331345
@_extern(wasm, module: "bjs", name: "make_jsstring")
332-
private func _make_jsstring(_ ptr: UnsafePointer<UInt8>?, _ len: Int32) -> Int32
346+
func _make_jsstring(_ ptr: UnsafePointer<UInt8>?, _ len: Int32) -> Int32
347+
#else
348+
func _make_jsstring(_ ptr: UnsafePointer<UInt8>?, _ len: Int32) -> Int32 {
349+
fatalError("Only available on WebAssembly")
350+
}
351+
#endif
333352
353+
#if arch(wasm32)
334354
@_extern(wasm, module: "bjs", name: "init_memory_with_result")
335-
private func _init_memory_with_result(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
355+
func _init_memory_with_result(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
356+
#else
357+
func _init_memory_with_result(_ ptr: UnsafePointer<UInt8>?, _ len: Int32) {
358+
fatalError("Only available on WebAssembly")
359+
}
360+
#endif
336361
"""
337362

338363
func renderSwiftThunk(

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/PrimitiveParameters.swift‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,9 +16,14 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_check")
2022
@_cdecl("bjs_check")
2123
public func _bjs_check(a: Int32, b: Float32, c: Float64, d: Int32) -> Void {
24+
#if arch(wasm32)
2225
check(a: Int(a), b: b, c: c, d: d == 1)
26+
#else
27+
fatalError("Only available on WebAssembly")
28+
#endif
2329
}

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/PrimitiveReturn.swift‎

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,31 +16,48 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_checkInt")
2022
@_cdecl("bjs_checkInt")
2123
public func _bjs_checkInt() -> Int32 {
24+
#if arch(wasm32)
2225
let ret = checkInt()
2326
return Int32(ret)
27+
#else
28+
fatalError("Only available on WebAssembly")
29+
#endif
2430
}
2531

2632
@_expose(wasm, "bjs_checkFloat")
2733
@_cdecl("bjs_checkFloat")
2834
public func _bjs_checkFloat() -> Float32 {
35+
#if arch(wasm32)
2936
let ret = checkFloat()
3037
return Float32(ret)
38+
#else
39+
fatalError("Only available on WebAssembly")
40+
#endif
3141
}
3242

3343
@_expose(wasm, "bjs_checkDouble")
3444
@_cdecl("bjs_checkDouble")
3545
public func _bjs_checkDouble() -> Float64 {
46+
#if arch(wasm32)
3647
let ret = checkDouble()
3748
return Float64(ret)
49+
#else
50+
fatalError("Only available on WebAssembly")
51+
#endif
3852
}
3953

4054
@_expose(wasm, "bjs_checkBool")
4155
@_cdecl("bjs_checkBool")
4256
public func _bjs_checkBool() -> Int32 {
57+
#if arch(wasm32)
4358
let ret = checkBool()
4459
return Int32(ret ? 1 : 0)
60+
#else
61+
fatalError("Only available on WebAssembly")
62+
#endif
4563
}

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/StringParameter.swift‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,13 +16,18 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_checkString")
2022
@_cdecl("bjs_checkString")
2123
public func _bjs_checkString(aBytes: Int32, aLen: Int32) -> Void {
24+
#if arch(wasm32)
2225
let a = String(unsafeUninitializedCapacity: Int(aLen)) { b in
2326
_init_memory(aBytes, b.baseAddress.unsafelyUnwrapped)
2427
return Int(aLen)
2528
}
2629
checkString(a: a)
30+
#else
31+
fatalError("Only available on WebAssembly")
32+
#endif
2733
}

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/StringReturn.swift‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,12 +16,17 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_checkString")
2022
@_cdecl("bjs_checkString")
2123
public func _bjs_checkString() -> Void {
24+
#if arch(wasm32)
2225
var ret = checkString()
2326
return ret.withUTF8 { ptr in
2427
_return_string(ptr.baseAddress, Int32(ptr.count))
2528
}
29+
#else
30+
fatalError("Only available on WebAssembly")
31+
#endif
2632
}

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/SwiftClass.swift‎

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,41 +16,58 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_takeGreeter")
2022
@_cdecl("bjs_takeGreeter")
2123
public func _bjs_takeGreeter(greeter: UnsafeMutableRawPointer) -> Void {
24+
#if arch(wasm32)
2225
takeGreeter(greeter: Unmanaged<Greeter>.fromOpaque(greeter).takeUnretainedValue())
26+
#else
27+
fatalError("Only available on WebAssembly")
28+
#endif
2329
}
2430

2531
@_expose(wasm, "bjs_Greeter_init")
2632
@_cdecl("bjs_Greeter_init")
2733
public func _bjs_Greeter_init(nameBytes: Int32, nameLen: Int32) -> UnsafeMutableRawPointer {
34+
#if arch(wasm32)
2835
let name = String(unsafeUninitializedCapacity: Int(nameLen)) { b in
2936
_init_memory(nameBytes, b.baseAddress.unsafelyUnwrapped)
3037
return Int(nameLen)
3138
}
3239
let ret = Greeter(name: name)
3340
return Unmanaged.passRetained(ret).toOpaque()
41+
#else
42+
fatalError("Only available on WebAssembly")
43+
#endif
3444
}
3545

3646
@_expose(wasm, "bjs_Greeter_greet")
3747
@_cdecl("bjs_Greeter_greet")
3848
public func _bjs_Greeter_greet(_self: UnsafeMutableRawPointer) -> Void {
49+
#if arch(wasm32)
3950
var ret = Unmanaged<Greeter>.fromOpaque(_self).takeUnretainedValue().greet()
4051
return ret.withUTF8 { ptr in
4152
_return_string(ptr.baseAddress, Int32(ptr.count))
4253
}
54+
#else
55+
fatalError("Only available on WebAssembly")
56+
#endif
4357
}
4458

4559
@_expose(wasm, "bjs_Greeter_changeName")
4660
@_cdecl("bjs_Greeter_changeName")
4761
public func _bjs_Greeter_changeName(_self: UnsafeMutableRawPointer, nameBytes: Int32, nameLen: Int32) -> Void {
62+
#if arch(wasm32)
4863
let name = String(unsafeUninitializedCapacity: Int(nameLen)) { b in
4964
_init_memory(nameBytes, b.baseAddress.unsafelyUnwrapped)
5065
return Int(nameLen)
5166
}
5267
Unmanaged<Greeter>.fromOpaque(_self).takeUnretainedValue().changeName(name: name)
68+
#else
69+
fatalError("Only available on WebAssembly")
70+
#endif
5371
}
5472

5573
@_expose(wasm, "bjs_Greeter_deinit")

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/Throws.swift‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,10 +16,12 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_throwsSomething")
2022
@_cdecl("bjs_throwsSomething")
2123
public func _bjs_throwsSomething() -> Void {
24+
#if arch(wasm32)
2225
do {
2326
try throwsSomething()
2427
} catch let error {
@@ -34,4 +37,7 @@ public func _bjs_throwsSomething() -> Void {
3437
}
3538
return
3639
}
40+
#else
41+
fatalError("Only available on WebAssembly")
42+
#endif
3743
}

‎Plugins/BridgeJS/Tests/BridgeJSToolTests/__Snapshots__/ExportSwiftTests/VoidParameterVoidReturn.swift‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66

77
@_spi(JSObject_id) import JavaScriptKit
88

9+
#if arch(wasm32)
910
@_extern(wasm, module: "bjs", name: "return_string")
1011
private func _return_string(_ ptr: UnsafePointer<UInt8>?, _ len: Int32)
1112
@_extern(wasm, module: "bjs", name: "init_memory")
@@ -15,9 +16,14 @@ private func _init_memory(_ sourceId: Int32, _ ptr: UnsafeMutablePointer<UInt8>?
1516
private func _swift_js_retain(_ ptr: Int32) -> Int32
1617
@_extern(wasm, module: "bjs", name: "swift_js_throw")
1718
private func _swift_js_throw(_ id: Int32)
19+
#endif
1820
1921
@_expose(wasm, "bjs_check")
2022
@_cdecl("bjs_check")
2123
public func _bjs_check() -> Void {
24+
#if arch(wasm32)
2225
check()
26+
#else
27+
fatalError("Only available on WebAssembly")
28+
#endif
2329
}

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