53 lines
No EOL
1.5 KiB
JavaScript
53 lines
No EOL
1.5 KiB
JavaScript
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var Foreign = function() {
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var JavaScript = function() {
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function castJSBoolToBool(b) { return b; }
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function castBoolToJSBool(b) { return b; }
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function castJSNumberToFloat(n) { return n; }
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function castFloatToJSNumber(n) { return n; }
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function castJSNumberToInt(n) { return ~~n; }
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function castIntToJSNumber(n) { return n; }
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var castJSElementToElement = Element.jsElement;
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function castElementToJSElement(elem) { return elem; }
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function castJSArrayToList(arr) {
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var list = ["Nil"];
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for (var i = arr.length; i--; ) {
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list = [ "Cons", arr[i], list ];
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}
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return list;
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}
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function castListToJSArray(list) {
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var a = [];
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while (list[0] === "Cons") {
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a.push(list[1]);
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list = list[2];
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}
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return a;
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}
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var castJSStringToString = castJSArrayToList
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function castStringToJSString(str) {
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if (typeof str === "string") return str;
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return castListToJSArray(str).join('');
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}
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return {castJSBoolToBool:castJSBoolToBool,
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castBoolToJSBool:castBoolToJSBool,
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castJSNumberToFloat:castJSNumberToFloat,
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castFloatToJSNumber:castFloatToJSNumber,
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castJSNumberToInt:castJSNumberToInt,
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castIntToJSNumber:castIntToJSNumber,
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castJSElementToElement:castJSElementToElement,
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castElementToJSElement:castElementToJSElement,
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castJSArrayToList:castJSArrayToList,
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castListToJSArray:castListToJSArray,
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castJSStringToString:castJSStringToString,
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castStringToJSString:castStringToJSString
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};
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}();
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return {JavaScript:JavaScript};
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}(); |