remove example.hs because its deprecated
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Maybe Fabian Noll aber vielleicht auch nicht. Ist ein bisschen ne Glaubenssache :)
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src/Example.hs
267
src/Example.hs
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module Example where
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import Ast
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import Typecheck
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import Control.Exception (catch, evaluate, SomeException, displayException)
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import Control.Exception.Base
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import System.IO (stderr, hPutStrLn)
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import Data.Maybe
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import Data.List
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green, red, yellow, blue, magenta, cyan, white :: String -> String
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green str = "\x1b[32m" ++ str ++ "\x1b[0m"
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red str = "\x1b[31m" ++ str ++ "\x1b[0m"
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yellow str = "\x1b[33m" ++ str ++ "\x1b[0m"
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blue str = "\x1b[34m" ++ str ++ "\x1b[0m"
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magenta str = "\x1b[35m" ++ str ++ "\x1b[0m"
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cyan str = "\x1b[36m" ++ str ++ "\x1b[0m"
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white str = "\x1b[37m" ++ str ++ "\x1b[0m"
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printSuccess :: String -> IO ()
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printSuccess msg = putStrLn $ green "Success:" ++ white msg
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handleError :: SomeException -> IO ()
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handleError e = hPutStrLn stderr $ red ("Error: " ++ displayException e)
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printResult :: Show a => String -> a -> IO ()
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printResult title result = do
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putStrLn $ green title
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print result
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sampleClasses :: [Class]
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sampleClasses = [
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Class "Person" [
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MethodDeclaration "void" "setAge" [ParameterDeclaration "int" "newAge"]
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(Block [
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LocalVariableDeclaration (VariableDeclaration "int" "age" (Just (Reference "newAge")))
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]),
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MethodDeclaration "int" "getAge" [] (Return (Just (Reference "age"))),
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MethodDeclaration "Person" "Person" [ParameterDeclaration "int" "initialAge"] (Block [])
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] [
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VariableDeclaration "int" "age" (Just (IntegerLiteral 25))
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]
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]
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initialSymtab :: [(DataType, Identifier)]
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initialSymtab = []
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exampleExpression :: Expression
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exampleExpression = BinaryOperation NameResolution (Reference "bob") (Reference "age")
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exampleAssignment :: Expression
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exampleAssignment = StatementExpressionExpression (Assignment (Reference "a") (IntegerLiteral 30))
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exampleMethodCall :: Statement
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exampleMethodCall = StatementExpressionStatement (MethodCall (Reference "this") "setAge" [IntegerLiteral 30])
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exampleConstructorCall :: Statement
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exampleConstructorCall = LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 30]))))
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exampleNameResolution :: Expression
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exampleNameResolution = BinaryOperation NameResolution (Reference "bob2") (Reference "age")
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exampleBlockResolution :: Statement
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exampleBlockResolution = Block [
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LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 30])))),
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LocalVariableDeclaration (VariableDeclaration "int" "age" (Just (StatementExpressionExpression (MethodCall (Reference "bob") "getAge" [])))),
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StatementExpressionStatement (MethodCall (Reference "bob") "setAge" [IntegerLiteral 30])
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]
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exampleBlockResolutionFail :: Statement
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exampleBlockResolutionFail = Block [
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LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 30])))),
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LocalVariableDeclaration (VariableDeclaration "bool" "age" (Just (StatementExpressionExpression (MethodCall (Reference "bob") "getAge" [])))),
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StatementExpressionStatement (MethodCall (Reference "bob") "setAge" [IntegerLiteral 30])
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]
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exampleMethodCallAndAssignment :: Statement
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exampleMethodCallAndAssignment = Block [
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LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 30])))),
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LocalVariableDeclaration (VariableDeclaration "int" "age" (Just (StatementExpressionExpression (MethodCall (Reference "bob") "getAge" [])))),
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StatementExpressionStatement (MethodCall (Reference "bob") "setAge" [IntegerLiteral 30]),
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LocalVariableDeclaration (VariableDeclaration "int" "a" Nothing),
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StatementExpressionStatement (Assignment (Reference "a") (Reference "age"))
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]
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exampleMethodCallAndAssignmentFail :: Statement
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exampleMethodCallAndAssignmentFail = Block [
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LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 30])))),
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LocalVariableDeclaration (VariableDeclaration "int" "age" (Just (StatementExpressionExpression (MethodCall (Reference "bob") "getAge" [])))),
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StatementExpressionStatement (MethodCall (Reference "bob") "setAge" [IntegerLiteral 30]),
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StatementExpressionStatement (Assignment (Reference "a") (Reference "age"))
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]
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exampleNameResolutionAssignment :: Statement
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exampleNameResolutionAssignment = Block [
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LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 30])))),
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StatementExpressionStatement (Assignment (BinaryOperation NameResolution (Reference "bob") (Reference "age")) (IntegerLiteral 30))
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]
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exampleCharIntOperation :: Expression
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exampleCharIntOperation = BinaryOperation Addition (CharacterLiteral 'a') (IntegerLiteral 1)
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exampleNullDeclaration :: Statement
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exampleNullDeclaration = LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just NullLiteral))
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exampleNullDeclarationFail :: Statement
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exampleNullDeclarationFail = LocalVariableDeclaration (VariableDeclaration "int" "a" (Just NullLiteral))
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exampleNullAssignment :: Statement
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exampleNullAssignment = StatementExpressionStatement (Assignment (Reference "a") NullLiteral)
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exampleIncrement :: Statement
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exampleIncrement = StatementExpressionStatement (PostIncrement (Reference "a"))
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testClasses :: [Class]
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testClasses = [
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Class "Person" [
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MethodDeclaration "Person" "Person" [ParameterDeclaration "int" "initialAge"]
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(Block [
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Return (Just (Reference "this"))
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]),
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MethodDeclaration "void" "setAge" [ParameterDeclaration "int" "newAge"]
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(Block [
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LocalVariableDeclaration (VariableDeclaration "int" "age" (Just (Reference "newAge")))
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]),
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MethodDeclaration "int" "getAge" []
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(Return (Just (Reference "age")))
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] [
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VariableDeclaration "int" "age" Nothing -- initially unassigned
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],
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Class "Main" [
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MethodDeclaration "int" "main" []
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(Block [
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LocalVariableDeclaration (VariableDeclaration "Person" "bob" (Just (StatementExpressionExpression (ConstructorCall "Person" [IntegerLiteral 25])))),
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StatementExpressionStatement (MethodCall (Reference "bob") "setAge" [IntegerLiteral 30]),
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LocalVariableDeclaration (VariableDeclaration "int" "bobAge" (Just (StatementExpressionExpression (MethodCall (Reference "bob2") "getAge" [])))),
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Return (Just (Reference "bobAge"))
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])
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] [
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VariableDeclaration "Person" "bob2" Nothing
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]
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]
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runTypeCheck :: IO ()
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runTypeCheck = do
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catch (do
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print "====================================================================================="
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evaluatedExpression <- evaluate (typeCheckExpression exampleExpression [("bob", "Person")] sampleClasses)
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printSuccess "Type checking of expression completed successfully"
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printResult "Result Expression:" evaluatedExpression
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedAssignment <- evaluate (typeCheckExpression exampleAssignment [("a", "int")] sampleClasses)
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printSuccess "Type checking of assignment completed successfully"
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printResult "Result Assignment:" evaluatedAssignment
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedMethodCall <- evaluate (typeCheckStatement exampleMethodCall [("this", "Person"), ("setAge", "Person"), ("getAge", "Person")] sampleClasses)
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printSuccess "Type checking of method call this completed successfully"
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printResult "Result MethodCall:" evaluatedMethodCall
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedConstructorCall <- evaluate (typeCheckStatement exampleConstructorCall [] sampleClasses)
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printSuccess "Type checking of constructor call completed successfully"
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printResult "Result Constructor Call:" evaluatedConstructorCall
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedNameResolution <- evaluate (typeCheckExpression exampleNameResolution [("this", "Main")] testClasses)
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printSuccess "Type checking of name resolution completed successfully"
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printResult "Result Name Resolution:" evaluatedNameResolution
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedBlockResolution <- evaluate (typeCheckStatement exampleBlockResolution [] sampleClasses)
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printSuccess "Type checking of block resolution completed successfully"
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printResult "Result Block Resolution:" evaluatedBlockResolution
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedBlockResolutionFail <- evaluate (typeCheckStatement exampleBlockResolutionFail [] sampleClasses)
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printSuccess "Type checking of block resolution failed"
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printResult "Result Block Resolution:" evaluatedBlockResolutionFail
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedMethodCallAndAssignment <- evaluate (typeCheckStatement exampleMethodCallAndAssignment [] sampleClasses)
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printSuccess "Type checking of method call and assignment completed successfully"
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printResult "Result Method Call and Assignment:" evaluatedMethodCallAndAssignment
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedMethodCallAndAssignmentFail <- evaluate (typeCheckStatement exampleMethodCallAndAssignmentFail [] sampleClasses)
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printSuccess "Type checking of method call and assignment failed"
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printResult "Result Method Call and Assignment:" evaluatedMethodCallAndAssignmentFail
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) handleError
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catch (do
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print "====================================================================================="
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let mainClass = fromJust $ find (\(Class className _ _) -> className == "Main") testClasses
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case mainClass of
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Class _ [mainMethod] _ -> do
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let result = typeCheckMethodDeclaration mainMethod [("this", "Main")] testClasses
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printSuccess "Full program type checking completed successfully."
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printResult "Main method result:" result
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) handleError
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catch (do
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print "====================================================================================="
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let typedProgram = typeCheckCompilationUnit testClasses
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printSuccess "Type checking of Program completed successfully"
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printResult "Typed Program:" typedProgram
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) handleError
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catch (do
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print "====================================================================================="
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typedAssignment <- evaluate (typeCheckStatement exampleNameResolutionAssignment [] sampleClasses)
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printSuccess "Type checking of name resolution assignment completed successfully"
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printResult "Result Name Resolution Assignment:" typedAssignment
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedCharIntOperation <- evaluate (typeCheckExpression exampleCharIntOperation [] sampleClasses)
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printSuccess "Type checking of char int operation completed successfully"
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printResult "Result Char Int Operation:" evaluatedCharIntOperation
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedNullDeclaration <- evaluate (typeCheckStatement exampleNullDeclaration [] sampleClasses)
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printSuccess "Type checking of null declaration completed successfully"
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printResult "Result Null Declaration:" evaluatedNullDeclaration
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedNullDeclarationFail <- evaluate (typeCheckStatement exampleNullDeclarationFail [] sampleClasses)
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printSuccess "Type checking of null declaration failed"
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printResult "Result Null Declaration:" evaluatedNullDeclarationFail
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedNullAssignment <- evaluate (typeCheckStatement exampleNullAssignment [("a", "Person")] sampleClasses)
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printSuccess "Type checking of null assignment completed successfully"
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printResult "Result Null Assignment:" evaluatedNullAssignment
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) handleError
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catch (do
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print "====================================================================================="
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evaluatedIncrement <- evaluate (typeCheckStatement exampleIncrement [("a", "int")] sampleClasses)
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printSuccess "Type checking of increment completed successfully"
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printResult "Result Increment:" evaluatedIncrement
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) handleError
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