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Add 3rd argument to getattr #727

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Add 3rd argument to getattr #727

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24 changes: 22 additions & 2 deletions transcrypt/modules/org/transcrypt/__builtin__.js
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Original file line number Diff line number Diff line change
Expand Up @@ -140,8 +140,28 @@ export function setattr (obj, name, value) {
obj [name] = value; // Will not work in combination with static retrieval of aliased attributes, too expensive
};

export function getattr (obj, name) {
return name in obj ? obj [name] : obj ['py_' + name];
export var getattr = function (obj, name, failsafe) {
if (obj[name] !== undefined) {
return obj [name];
} else if (obj['py_' + name] !== undefined) {
return obj ['py_' + name];
} else if (failsafe !== undefined) {
return failsafe;
} else {
let message = "has no attribute '{}'";
if (obj.__class__ !== undefined) {
message = ("'{}' object " + message).format(obj.__class__.__name__, name);
} else if (obj.__name__ !== undefined) {
message = ("type object '{}' " + message).format(obj.__name__, name);
} else if (obj.prototype !== undefined) {
message = ("type object '{}' " + message).format(obj.name || py_typeof(obj), name);
} else {
message = ("'{}' object " + message).format(obj.name || py_typeof(obj), name);
}
var __except0__ = AttributeError (message, new Error());
__except0__.__cause__ = null;
throw __except0__;
}
};

export function hasattr (obj, name) {
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