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Support code hot reloading for JavaScript projects (#7362)

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* Support code hot reloading for JavaScript projects

* Add some missing JavaScript symbols and APIs

* fix the Travis build

* (review changes) remove the js type from the standard library as it doesn't follow NEP-1

* more additions to the DOM module

* Follow NEP-1 in jsffi; spell 'hot code reloading' correctly

* introduce a jscore module

* Document jscore module.

* readded js type

* Remove the '$' operator that doesn't behave
This commit is contained in:
zah 2018-04-13 20:08:43 +03:00 • committed by Andreas Rumpf
commit e3037a2f33
14 changed files with 285 additions and 68 deletions
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24
lib/js/jsffi.nim
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@ -70,22 +70,31 @@ template mangleJsName(name: cstring): cstring =
"mangledName" & $nameCounter
type
JsRoot* = ref object of RootObj
## Root type of both JsObject and JsAssoc
JsObject* = ref object of JsRoot
## Dynamically typed wrapper around a JavaScript object.
JsAssoc*[K, V] = ref object of JsRoot
## Statically typed wrapper around a JavaScript object.
NotString = concept c
c isnot string
js* = JsObject
var jsarguments* {.importc: "arguments", nodecl}: JsObject
## JavaScript's arguments pseudo-variable
var
jsArguments* {.importc: "arguments", nodecl}: JsObject
## JavaScript's arguments pseudo-variable
jsNull* {.importc: "null", nodecl.}: JsObject
## JavaScript's null literal
jsUndefined* {.importc: "undefined", nodecl.}: JsObject
## JavaScript's undefined literal
jsDirname* {.importc: "__dirname", nodecl.}: cstring
## JavaScript's __dirname pseudo-variable
jsFilename* {.importc: "__filename", nodecl.}: cstring
## JavaScript's __filename pseudo-variable
# New
proc newJsObject*: JsObject {. importcpp: "{@}" .}
## Creates a new empty JsObject
proc newJsAssoc*[K, V]: JsAssoc[K, V] {. importcpp: "{@}" .}
## Creates a new empty JsAssoc with key type `K` and value type `V`.
@ -97,13 +106,16 @@ proc hasOwnProperty*(x: JsObject, prop: cstring): bool
proc jsTypeOf*(x: JsObject): cstring {. importcpp: "typeof(#)" .}
## Returns the name of the JsObject's JavaScript type as a cstring.
proc jsnew*(x: auto): JsObject {.importcpp: "(new #)".}
proc jsNew*(x: auto): JsObject {.importcpp: "(new #)".}
## Turns a regular function call into an invocation of the
## JavaScript's `new` operator
proc jsdelete*(x: auto): JsObject {.importcpp: "(delete #)".}
proc jsDelete*(x: auto): JsObject {.importcpp: "(delete #)".}
## JavaScript's `delete` operator
proc require*(module: cstring): JsObject {.importc.}
## JavaScript's `require` function
# Conversion to and from JsObject
proc to*(x: JsObject, T: typedesc): T {. importcpp: "(#)" .}
## Converts a JsObject `x` to type `T`.