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Warn if PB_MAX_REQUIRED_FIELDS is not large enough.

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Petteri Aimonen
2012-06-30 18:23:18 +03:00
parent 95eb4a5499
commit 67add3259a
1 changed files with 10 additions and 0 deletions
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10
generator/nanopb_generator.py
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@@ -402,6 +402,16 @@ def generate_header(dependencies, headername, enums, messages):
for msg in messages:
yield msg.fields_declaration() + '\n'
count_required_fields = lambda m: len([f for f in msg.fields if f.htype == 'PB_HTYPE_REQUIRED'])
largest_msg = max(messages, key = count_required_fields)
largest_count = count_required_fields(largest_msg)
if largest_count > 64:
yield '\n/* Check that missing required fields will be properly detected */\n'
yield '#if PB_MAX_REQUIRED_FIELDS < %d\n' % largest_count
yield '#warning Properly detecting missing required fields in %s requires \\\n' % largest_msg.name
yield ' setting PB_MAX_REQUIRED_FIELDS to %d or more.\n' % largest_count
yield '#endif\n'
yield '\n#endif\n'
def generate_source(headername, enums, messages):