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98131a9fa1
fixes #25751 This pull request improves the JavaScript backend code generation and expands test coverage, particularly around temporary and loop variables, as well as object destruction behavior. The main changes include updating the code generator to handle more symbol kinds and adding tests to ensure proper destruction and option handling. **JavaScript code generation improvements:** * Updated `genSymAddr` in `compiler/jsgen.nim` to support additional symbol kinds, specifically `skTemp` and `skForVar`, ensuring correct address generation for temporaries and loop variables. **Test suite enhancements:** * Added tests in `tests/js/test2.nim` to verify correct behavior of option types, object destruction (`=destroy`), and to check for backend-specific crashes. This includes printing results of option-returning functions and confirming destruction messages. * Updated expected output in `tests/js/test2.nim` to include results from new tests and destruction messages, ensuring the test suite reflects the latest code behavior.
76 lines
1.3 KiB
Nim
76 lines
1.3 KiB
Nim
discard """
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output: '''foo
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js 3.14
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7
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1
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-21550
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-21550
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none(TT)
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()
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destroyed
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destroyed
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'''
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"""
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# This file tests the JavaScript generator
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doAssert getCurrentException() == nil
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doAssert getCurrentExceptionMsg() == ""
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# #335
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proc foo() =
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var bar = "foo"
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proc baz() =
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echo bar
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baz()
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foo()
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# #376
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when not defined(js):
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proc foo(val: float): string = "no js " & $val
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else:
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proc foo(val: float): string = "js " & $val
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echo foo(3.14)
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# #2495
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type C = concept x
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proc test(x: C, T: typedesc): T =
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cast[T](x)
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echo 7.test(int8)
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# #4222
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const someConst = [ "1"]
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proc procThatRefersToConst() # Forward decl
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procThatRefersToConst() # Call bar before it is defined
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proc procThatRefersToConst() =
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var i = 0 # Use a var index, otherwise nim will constfold foo[0]
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echo someConst[i] # JS exception here: foo is still not initialized (undefined)
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# bug #6753
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let x = -1861876800
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const y = 86400
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echo (x - (y - 1)) div y # Now gives `-21550`
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proc foo09() =
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let x = -1861876800
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const y = 86400
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echo (x - (y - 1)) div y # Still gives `-21551`
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foo09()
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import std/options
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type TT = object
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proc `=destroy`(x: TT) = echo "destroyed"
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func test1: Option[TT] = discard
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func test2: TT = discard
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echo test1() # Crash in JS backend, not crash in C backend
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echo test2() # Not crash
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