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implementation module Sil.Error
import StdFile
import StdString
import Text
import Sil.Syntax
import Sil.Types
import Sil.Util.Parser
:: ErrorPosition =
{ ep_line :: Int
}
instance toString ErrorPosition
where
toString ep = ep.ep_line <+ ":\t"
instance toString Error
where
toString (P_Invalid w tk) = "Invalid token '" <+ tk <+ "' while parsing a " <+ w <+ "."
toString (P_Expected s) = "Expected " <+ s <+ "."
toString (T_IllegalApplication ft et) = "Cannot apply a " <+ et <+ " to a " <+ ft <+ "."
toString (T_IllegalField f t) = "Illegal field '" <+ f <+ "' on type " <+ t <+ "."
toString (T_TooHighTupleArity i) = "Too high tuple arity " <+ i <+ " (maximum is 32)."
toString Ck_NoMainFunction = "Error: no main function."
toString (Ck_MainFunctionInvalidType p t) = p <+ "Error: function 'main' should not have arguments has type " <+ t <+ "."
toString (Ck_DuplicateFunctionName p n) = p <+ "Error: multiply defined: '" <+ n <+ "'."
toString (Ck_DuplicateLocalName p f arg) = p <+ "Error: multiply defined: '" <+ arg <+ "' in '" <+ f <+ "'."
toString (Ck_ReturnExpressionFromVoid p f) = p <+ "Type error: an expression was returned from void function '" <+ f <+ "'."
toString (Ck_NoReturnFromNonVoid p f) = p <+ "Type error: no return from non-void function '" <+ f <+ "'."
toString (Ck_LocalVoid f l) = "Type error: local variable '" <+ l <+ "' in '" <+ f <+ "' cannot have type Void."
toString (Ck_BasicGlobal p g) = p <+ "Error: global variable '" <+ g <+ "' cannot have a basic type."
toString (C_UndefinedName n) = "Undefined name '" <+ n <+ "'."
toString (C_UndefinedField f) = "Undefined field '" <+ f <+ "'."
toString C_VariableLabel = "Variable stored at label."
toString C_FunctionOnStack = "Function stored on the stack."
toString (C_CouldNotDeduceType e) = "Could not deduce type of '" <+ e <+ "'."
toString (C_TypeMisMatch t e u) = "Type mismatch: expected " <+ t <+ " for '" <+ e <+ "'; had " <+ u <+ "."
toString (C_BasicInitWithoutValue n) = "Basic value '" <+ n <+ "' must have an initial value."
toString (UnknownError e) = "Unknown error: " <+ e <+ "."
instance <<< Error where <<< f e = f <<< toString e <<< "\r\n"
errpos :: (Positioned a) -> ErrorPosition
errpos p = {ep_line=p.pos_line}
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