Segmentation Fault - Invalid SyntaxKind Value

[zigzagtx2778]

While extracting information in a Python 3.12.3 script about the RTL structure, using Pyslang 10.0.0 from PyPi, I run into a segmentation fault. The traceback portion I can copy here is:

│ ❱ 1618 │ │ if expr.dimensions.kind != SyntaxKind.SyntaxList: │
│ 1619 │ │ │ self.logger.warning(f"Need to Handle Dimensions Kind: {expr.dimensions.kind} │
│ 1620 │ │ │ self.logger.warning(f" {'.'.join(cur_path)}") │
│ 1621 │ │ │ result = False │
│ │
│ ╭─────────────────────────────────────────────────────────────────── locals ────────────────────────────────────────────────────────────────────╮ │
│ │ cur_path = ['tree[0]', 'root', 'members[1]', 'parameter', 'declarators[0]', 'initializer', 'expr', 'arguments[1]', '[0]', 'expr', ... +3] │ │
│ │ expr = SyntaxNode(SyntaxKind.IntType) │ │
│ │ result = True │ │
│ │ s_expression = ['int'] │ │
│ │ self = <cSlang_ParseExpressions.cSlang_ParseExpressions object at 0x7fa3ce16b350> │ │
│ ╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ │
│ │
│ /home/noncad/python/3.12.3/lib/python3.12/enum.py:757 in call │
│ │
│ 754 │ │ │ # simple value lookup if members exist ╭──────── locals ────────╮ │
│ 755 │ │ │ if names is not _not_given: │ boundary = None │ │
│ 756 │ │ │ │ value = (value, names) + values │ module = None │ │
│ ❱ 757 │ │ │ return cls.new(cls, value) │ names = │ │
│ 758 │ │ # otherwise, functional API: we're creating a new Enum type │ qualname = None │ │
│ 759 │ │ if names is _not_given and type is None: │ start = 1 │ │
│ 760 │ │ │ # no body? no data-type? possibly wrong usage │ type = None │ │
│ │ value = -616226896 │ │
│ │ values = () │ │
│ ╰────────────────────────╯ │
│ │
│ /home/noncad/python/3.12.3/lib/python3.12/enum.py:1171 in new │
│ │
│ 1168 │ │ │ else: ╭────── locals ───────╮ │
│ 1169 │ │ │ │ ve_exc = ValueError("%r is not a valid %s" % (value, cls.qualname)) │ exc = None │ │
│ 1170 │ │ │ │ if result is None and exc is None: │ result = None │ │
│ ❱ 1171 │ │ │ │ │ raise ve_exc │ value = -616226896 │ │
│ 1172 │ │ │ │ elif exc is None: │ ve_exc = None │ │
│ 1173 │ │ │ │ │ exc = TypeError( ╰─────────────────────╯ │
│ 1174 │ │ │ │ │ │ │ 'error in %s.missing: returned %r instead of None or a val │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
ValueError: -616226896 is not a valid SyntaxKind

I can also create a Segmentation Fault using the following command sequence. Not sure if they're linked or not. The source file is attached but had to change the extension to txt from svh in order to upload.

from pyslang import *
driver = Driver()
driver.addStandardArgs()
clo = CommandLineOptions()
clo.ignoreProgramName = True
cmd_line = "localparam_seg_fault.svh --ignore-unknown-modules"
driver.parseCommandLine(cmd_line, clo)
True
driver.processOptions()
True
driver.parseAllSources()
True
tree = driver.syntaxTrees[0]
tree.root.members[1].parameter.declarators[0].initializer.expr.arguments[1][0].expr.expr.expr.left.dimensions.to_json()
Segmentation fault (core dumped)

localparam_seg_fault.txt

[MikePopoloski]

I believe this issue has been fixed already. You can wait for an official release or build one locally to confirm.

[zigzagtx2778]

Updated local copy of slang to point to the release/11.0 branch. Recompiled and running over the file list, I don't get this crash anymore. Hopefully the official release on PyPi is soon.

Thanks!