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Test that we can still parse the old annotated form as well.
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We were checking that nominal modules only had a single element in their type
sections, but that's not correct for the prototype nominal binary format we
still want to support. The test for this missed catching the bug because it
wasn't actually parsing in nominal mode.
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In f124a11ca3 we removed support for the prototype nominal binary format
entirely, but that means that we can no longer parse older binary modules that
used that format. Fix this regression by restoring the ability to parse the
prototype binary format.
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#4555 fixed validation for such tuples, but we also did not handle
them in "stacky" code using pops etc., due to a logic bug in the
binary reading code.
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Fixes the crash in #4418
Also replace the .at() there with better logic to handle imported functions.
See WebAssembly/wabt#1799 for details on why wabt sometimes emits this.
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Apparently it is not a binary test?
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When reading stacky code in the binary reader, we create `block`s to
make it fit into Binaryen AST, within which `pop`s can be nested, making
the resulting AST invalid. This PR runs the fixup function after reading
each `Try` to fix this.
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If that type is not valid then we cannot even create and finalize the node,
which means we'd hit an assertion inside finalize(), before we reach the
validator.
Fixes #4383
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Without this roundtripping may not work in nominal mode, as
we might not assign the expected heap types in the right places.
Specifically, when the signature matches but the nominal types are
distinct then we need to keep them that way (and the sugar in the
text format parsing will merge them).
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Switch from "extends" to M4 nominal syntax
Change all test inputs from using the old (extends $super) syntax to using the
new *_subtype syntax for their inputs and also update the printer to emit the
new syntax. Add a new test explicitly testing the old notation to make sure it
keeps working until we remove support for it.
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See #4149
This modifies the test added in #4163 which used static casts on
dynamically-created structs and arrays. That was technically not
valid (as we won't want users to "mix" the two forms). This makes that
test 100% static, which both fixes the test and gives test coverage
to the new instructions added here.
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See also:
spec change: https://github.com/WebAssembly/tool-conventions/pull/170
llvm change: https://reviews.llvm.org/D109595
wabt change: https://github.com/WebAssembly/wabt/pull/1707
emscripten change: https://github.com/emscripten-core/emscripten/pull/15019
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If extra data is found in this section simply propagate it.
Also, remove some dead code from wasm-binary.cpp.
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