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"""
mwrap_mgen.py — MATLAB stub generator.
Copyright (c) 2007-2008 David Bindel
See the file COPYING for copying permissions
Converted to Python by Zydrunas Gimbutas (2026),
with assistance from Claude Code / Claude Opus 4.6 (Anthropic).
"""
from mwrap_ast import VT
def _output_arg_names(args):
"""Collect names of output/inout arguments."""
return [v.name for v in args if v.iospec in ('o', 'b')]
def _input_arg_strs(args):
"""Collect input argument strings (with leading ', ')."""
parts = []
for v in args:
if v.tinfo == VT.const:
parts.append(", 0")
elif v.iospec in ('i', 'b'):
parts.append(f", {v.name}")
return parts
def _dim_arg_strs(vars):
"""Collect dimension argument strings (with leading ', ')."""
parts = []
for v in vars:
if v.qual:
for e in v.qual.args:
parts.append(f", {e.value}")
return parts
def print_matlab_call(fp, f, mexfunc):
"""Emit MATLAB stub for function call f."""
fp.write(f"mex_id_ = {f.id};\n")
out_names = _output_arg_names(f.ret) + _output_arg_names(f.args)
if out_names:
fp.write(f"[{', '.join(out_names)}] = ")
rhs = [f"mex_id_"]
if f.thisv:
rhs.append(f", {f.thisv}")
rhs.extend(_input_arg_strs(f.args))
rhs.extend(_dim_arg_strs(f.ret))
rhs.extend(_dim_arg_strs(f.args))
fp.write(f"{mexfunc}({''.join(rhs)});\n")
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