RecursionError when running meson configure in source directory (on today's meson master; commit d31db565e1405b303390)

[1ace]

Running meson configure in Mesa's source directory (at Mesa commit 8b3baa274406e9bcde42 in case the issue disappears later) crashes:

Traceback (most recent call last):
  File "/home/eric/dev/scm/meson/mesonbuild/mesonmain.py", line 127, in run
    return options.run_func(options)
  File "/home/eric/dev/scm/meson/mesonbuild/mconf.py", line 200, in run
    c = Conf(builddir)
  File "/home/eric/dev/scm/meson/mesonbuild/mconf.py", line 56, in __init__
    intr.analyze()
  File "/home/eric/dev/scm/meson/mesonbuild/ast/introspection.py", line 276, in analyze
    self.run()
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 407, in run
    self.evaluate_codeblock(self.ast, start=1)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 431, in evaluate_codeblock
    raise e
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 425, in evaluate_codeblock
    self.evaluate_statement(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 436, in evaluate_statement
    return self.function_call(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 773, in function_call
    return func(node, posargs, kwargs)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 162, in func_subdir
    self.evaluate_codeblock(codeblock)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 431, in evaluate_codeblock
    raise e
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 425, in evaluate_codeblock
    self.evaluate_statement(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 436, in evaluate_statement
    return self.function_call(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 773, in function_call
    return func(node, posargs, kwargs)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 162, in func_subdir
    self.evaluate_codeblock(codeblock)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 431, in evaluate_codeblock
    raise e
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 425, in evaluate_codeblock
    self.evaluate_statement(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 446, in evaluate_statement
    return self.evaluate_if(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 232, in evaluate_if
    self.evaluate_codeblock(i.block)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 431, in evaluate_codeblock
    raise e
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 425, in evaluate_codeblock
    self.evaluate_statement(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 436, in evaluate_statement
    return self.function_call(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 773, in function_call
    return func(node, posargs, kwargs)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 162, in func_subdir
    self.evaluate_codeblock(codeblock)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 431, in evaluate_codeblock
    raise e
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 425, in evaluate_codeblock
    self.evaluate_statement(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 438, in evaluate_statement
    return self.assignment(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 244, in assignment
    self.assign_vals[node.var_name] = [self.evaluate_statement(node.value)] # Evaluate the value just in case
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 436, in evaluate_statement
    return self.function_call(cur)
  File "/home/eric/dev/scm/meson/mesonbuild/interpreterbase.py", line 764, in function_call
    (posargs, kwargs) = self.reduce_arguments(node.args)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 203, in reduce_arguments
    return self.flatten_args(args.arguments), args.kwargs
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 305, in flatten_args
    flattend_args += self.flatten_args(quick_resolve(i), include_unknown_args, id_loop_detect + [i.value])
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 277, in flatten_args
    args = self.flatten_args(l, include_unknown_args, id_loop_detect) + self.flatten_args(r, include_unknown_args, id_loop_detect)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 277, in flatten_args
    args = self.flatten_args(l, include_unknown_args, id_loop_detect) + self.flatten_args(r, include_unknown_args, id_loop_detect)
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 277, in flatten_args
    args = self.flatten_args(l, include_unknown_args, id_loop_detect) + self.flatten_args(r, include_unknown_args, id_loop_detect)
  [Previous line repeated 962 more times]
  File "/home/eric/dev/scm/meson/mesonbuild/ast/interpreter.py", line 247, in flatten_args
    def quick_resolve(n: BaseNode, loop_detect: Optional[List[str]] = None) -> Any:
  File "/usr/lib/python3.7/typing.py", line 248, in inner
    return cached(*args, **kwds)
  File "/usr/lib/python3.7/typing.py", line 664, in __hash__
    return hash((self.__origin__, self.__args__))
RecursionError: maximum recursion depth exceeded while calling a Python object

[mensinda]

This is a bug in the ast interpreter. I will try to fix this. Also, #5375 might be related to #5286 but I will have to look into this.

[mensinda]

This should be fixed with #5387.