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fix(parser): prevent duplicate properties in complex types

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Louis Heredero
2026-05-29 10:41:54 +02:00
parent 5dc6903425
commit 022aebf55b
1 changed files with 6 additions and 1 deletions
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7
midas/parser/midas.py
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@@ -319,8 +319,13 @@ class MidasParser(Parser):
""" """
self.consume(TokenType.LEFT_BRACE, "Expected '{' to start type body") self.consume(TokenType.LEFT_BRACE, "Expected '{' to start type body")
properties: list[PropertyStmt] = [] properties: list[PropertyStmt] = []
names: set[str] = set()
while not self.check(TokenType.RIGHT_BRACE) and not self.is_at_end(): while not self.check(TokenType.RIGHT_BRACE) and not self.is_at_end():
properties.append(self.property_stmt()) prop: PropertyStmt = self.property_stmt()
if prop.name.lexeme in names:
raise self.error(prop.name, "Duplicate property")
names.add(prop.name.lexeme)
properties.append(prop)
self.consume(TokenType.RIGHT_BRACE, "Unclosed type body") self.consume(TokenType.RIGHT_BRACE, "Unclosed type body")
return properties return properties