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45aa65b67d
Fixes a bug in the binding of self/this to JavaScript methods. The new semantics match Pyodide's behaviour, at least for the included tests. Signed-off-by: Damien George <damien@micropython.org>
44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
// Test how JavaScript binds self/this when methods are called from Python.
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const mp = await (await import(process.argv[2])).loadMicroPython();
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// Test accessing and calling JavaScript methods from Python.
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mp.runPython(`
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import js
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# Get the push method to call later on.
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push = js.Array.prototype.push
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# Create initial array.
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ar = js.Array(1, 2)
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js.console.log(ar)
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# Add an element using a method (should implicitly supply "ar" as context).
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print(ar.push(3))
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js.console.log(ar)
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# Add an element using prototype function, need to explicitly provide "ar" as context.
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print(push.call(ar, 4))
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js.console.log(ar)
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# Add an element using a method with call and explicit context.
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print(ar.push.call(ar, 5))
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js.console.log(ar)
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# Add an element using a different instances method with call and explicit context.
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print(js.Array().push.call(ar, 6))
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js.console.log(ar)
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`);
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// Test assigning Python functions to JavaScript objects, and using them like a method.
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mp.runPython(`
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import js
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a = js.Object()
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a.meth1 = lambda *x: print("meth1", x)
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a.meth1(1, 2)
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js.Object.prototype.meth2 = lambda *x: print("meth2", x)
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a.meth2(3, 4)
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`);
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