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Subscript-based JSValue conversion
  • Loading branch information
j-f1 committed Aug 3, 2020
commit 4373e953e3ef72f71efbaf965c4caed41f7b754f
10 changes: 4 additions & 6 deletions Sources/JavaScriptKit/JSFunction.swift
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ public class JSFunctionRef: JSObjectRef {
return result
}
}
return result.jsValue()
return JSValue(from: result)
}

public func apply(this: JSObjectRef, arguments: JSValueConvertible...) -> JSValue {
Expand All @@ -35,7 +35,7 @@ public class JSFunctionRef: JSObjectRef {
return result
}
}
return result.jsValue()
return JSValue(from: result)
}

public func new(_ arguments: JSValueConvertible...) -> JSObjectRef {
Expand All @@ -58,7 +58,7 @@ public class JSFunctionRef: JSObjectRef {
fatalError("unavailable")
}

override public func jsValue() -> JSValue {
public override subscript(jsValue _: ()) -> JSValue {
.function(self)
}
}
Expand Down Expand Up @@ -106,9 +106,7 @@ public func _call_host_function(
guard let hostFunc = JSClosure.sharedFunctions[hostFuncRef] else {
fatalError("The function was already released")
}
let args = UnsafeBufferPointer(start: argv, count: Int(argc)).map {
$0.jsValue()
}
let args = UnsafeBufferPointer(start: argv, count: Int(argc)).map(JSValue.init(from:))
let result = hostFunc(args)
let callbackFuncRef = JSFunctionRef(id: callbackFuncRef)
_ = callbackFuncRef(result)
Expand Down
2 changes: 1 addition & 1 deletion Sources/JavaScriptKit/JSObject.swift
Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ public class JSObjectRef: Equatable {
return lhs.id == rhs.id
}

public func jsValue() -> JSValue {
public subscript(jsValue _: ()) -> JSValue {
.object(self)
}
}
4 changes: 2 additions & 2 deletions Sources/JavaScriptKit/JSValue.swift
Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ public func getJSValue(this: JSObjectRef, name: String) -> JSValue {
_get_prop(this.id, name, Int32(name.count),
&rawValue.kind,
&rawValue.payload1, &rawValue.payload2, &rawValue.payload3)
return rawValue.jsValue()
return JSValue(from: rawValue)
}

public func setJSValue(this: JSObjectRef, name: String, value: JSValue) {
Expand All @@ -88,7 +88,7 @@ public func getJSValue(this: JSObjectRef, index: Int32) -> JSValue {
_get_subscript(this.id, index,
&rawValue.kind,
&rawValue.payload1, &rawValue.payload2, &rawValue.payload3)
return rawValue.jsValue()
return JSValue(from: rawValue)
}

public func setJSValue(this: JSObjectRef, index: Int32, value: JSValue) {
Expand Down
49 changes: 26 additions & 23 deletions Sources/JavaScriptKit/JSValueConvertible.swift
Original file line number Diff line number Diff line change
@@ -1,55 +1,58 @@
import _CJavaScriptKit

public protocol JSValueConvertible {
func jsValue() -> JSValue
subscript(jsValue _: ()) -> JSValue { get }
}

extension JSValue: JSValueConvertible {
public func jsValue() -> JSValue { self }
public init(from convertible: JSValueConvertible) {
self = convertible[jsValue: ()]
}
public subscript(jsValue _: ()) -> JSValue { self }
}

extension Bool: JSValueConvertible {
public func jsValue() -> JSValue { .boolean(self) }
public subscript(jsValue _: ()) -> JSValue { .boolean(self) }
}

extension Int: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension Int8: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension Int16: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension Int32: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension UInt: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension UInt8: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension UInt16: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension Float: JSValueConvertible {
public func jsValue() -> JSValue { .number(Double(self)) }
public subscript(jsValue _: ()) -> JSValue { .number(Double(self)) }
}

extension Double: JSValueConvertible {
public func jsValue() -> JSValue { .number(self) }
public subscript(jsValue _: ()) -> JSValue { .number(self) }
}

extension String: JSValueConvertible {
public func jsValue() -> JSValue { .string(self) }
public subscript(jsValue _: ()) -> JSValue { .string(self) }
}

extension JSObjectRef: JSValueConvertible {
Expand All @@ -60,16 +63,16 @@ extension JSObjectRef: JSValueConvertible {
private let Object = JSObjectRef.global.Object.function!

extension Dictionary where Value: JSValueConvertible, Key == String {
public func jsValue() -> JSValue {
Swift.Dictionary<Key, JSValueConvertible>.jsValue(self)()
public subscript(jsValue _: ()) -> JSValue {
JSValue(from: self as Dictionary<Key, JSValueConvertible>)
}
}

extension Dictionary: JSValueConvertible where Value == JSValueConvertible, Key == String {
public func jsValue() -> JSValue {
public subscript(jsValue _: ()) -> JSValue {
let object = Object.new()
for (key, value) in self {
object[key] = value.jsValue()
object[key] = JSValue(from: value)
}
return .object(object)
}
Expand All @@ -78,23 +81,23 @@ extension Dictionary: JSValueConvertible where Value == JSValueConvertible, Key
private let Array = JSObjectRef.global.Array.function!

extension Array where Element: JSValueConvertible {
public func jsValue() -> JSValue {
Swift.Array<JSValueConvertible>.jsValue(self)()
public subscript(jsValue _: ()) -> JSValue {
JSValue(from: self as Swift.Array<JSValueConvertible>)
}
}

extension Array: JSValueConvertible where Element == JSValueConvertible {
public func jsValue() -> JSValue {
public subscript(jsValue _: ()) -> JSValue {
let array = Array.new(count)
for (index, element) in enumerated() {
array[index] = element.jsValue()
array[index] = JSValue(from: element)
}
return .object(array)
}
}

extension RawJSValue: JSValueConvertible {
public func jsValue() -> JSValue {
public subscript(jsValue _: ()) -> JSValue {
switch kind {
case .invalid:
fatalError()
Expand Down Expand Up @@ -176,7 +179,7 @@ extension Array where Element == JSValueConvertible {
_ results: inout [RawJSValue], _ body: ([RawJSValue]) -> T
) -> T {
if index == values.count { return body(results) }
return values[index].jsValue().withRawJSValue { (rawValue) -> T in
return JSValue(from: values[index]).withRawJSValue { (rawValue) -> T in
results.append(rawValue)
return _withRawJSValues(values, index + 1, &results, body)
}
Expand Down