Bob Nystrom
a5c4918a75
Update the VM interpreter to treat null as falsey alongside false in if, while, for, and logical AND/OR operations. Remove the TODO comment and adjust short-circuit logic in OP_JUMP_IF and OP_JUMP_IF_NOT branches. Refactor existing test files into subdirectories (if/, logical_operator/, while/) and add dedicated truthiness tests for each construct. Remove old test/if.wren and update and/or tests to exclude null/0/"" truthiness checks now that null is falsey.
21 lines
644 B
Plaintext
21 lines
644 B
Plaintext
// Note: These tests implicitly depend on ints being truthy.
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// Also rely on IO.print() returning its argument.
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// Return the first true argument.
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IO.print(1 || true) // expect: 1
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IO.print(false || 1) // expect: 1
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IO.print(false || false || true) // expect: true
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// Return the last argument if all are false.
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IO.print(false || false) // expect: false
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IO.print(false || false || false) // expect: false
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// Short-circuit at the first true argument.
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IO.print(false) || // expect: false
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IO.print(true) || // expect: true
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IO.print(true) // should not print
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// Swallow a trailing newline.
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IO.print(true ||
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true) // expect: true
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