slicc: fixed error message when the type has no inheritance
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1 changed files with 4 additions and 3 deletions
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@ -58,9 +58,10 @@ class MemberExprAST(ExprAST):
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else:
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if "interface" in return_type:
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interface_type = self.symtab.find(return_type["interface"]);
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if self.field in interface_type.data_members:
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# Return the type of the field
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return interface_type.data_members[self.field].type
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if interface_type != None:
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if self.field in interface_type.data_members:
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# Return the type of the field
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return interface_type.data_members[self.field].type
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self.error("Invalid object field: " +
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"Type '%s' does not have data member %s" % \
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(return_type, self.field))
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