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Generate IR for while and calls

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This commit is contained in:
Eugen Wissner 2024-08-18 20:13:59 +02:00
parent 6a54b66421
commit 2bd965bd5c
Signed by: belka
GPG Key ID: A27FDC1E8EE902C0
1 changed files with 21 additions and 1 deletions
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22
lib/Language/Elna/Intermediate.hs
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@ -6,6 +6,7 @@ module Language.Elna.Intermediate
, intermediate , intermediate
) where ) where
import Data.Bifunctor (Bifunctor(..))
import Data.Int (Int32) import Data.Int (Int32)
import Data.HashMap.Strict (HashMap) import Data.HashMap.Strict (HashMap)
import qualified Data.HashMap.Strict as HashMap import qualified Data.HashMap.Strict as HashMap
@ -17,7 +18,6 @@ import qualified Language.Elna.AST as AST
import Language.Elna.Types (Type(..)) import Language.Elna.Types (Type(..))
import Language.Elna.SymbolTable (SymbolTable, Info(..)) import Language.Elna.SymbolTable (SymbolTable, Info(..))
import qualified Language.Elna.SymbolTable as SymbolTable import qualified Language.Elna.SymbolTable as SymbolTable
import Data.Maybe (fromMaybe)
data Operand data Operand
= VariableOperand Variable = VariableOperand Variable
@ -91,6 +91,26 @@ statement localTable (AST.IfStatement ifCondition ifStatement elseStatement) =
<> Vector.snoc ifStatements (LabelQuadruple endLabel) <> Vector.snoc ifStatements (LabelQuadruple endLabel)
Nothing -> Vector.fromList [jumpConstructor ifLabel, GoToQuadruple endLabel, LabelQuadruple ifLabel] Nothing -> Vector.fromList [jumpConstructor ifLabel, GoToQuadruple endLabel, LabelQuadruple ifLabel]
<> Vector.snoc ifStatements (LabelQuadruple endLabel) <> Vector.snoc ifStatements (LabelQuadruple endLabel)
statement localTable (AST.WhileStatement whileCondition whileStatement) =
let (conditionStatements, jumpConstructor) = condition localTable whileCondition
whileStatements = statement localTable whileStatement
startLabel = Label "L3"
endLabel = Label "L4"
conditionLabel = Label "L5"
in Vector.fromList [LabelQuadruple conditionLabel]
<> conditionStatements
<> Vector.fromList [jumpConstructor startLabel, GoToQuadruple endLabel, LabelQuadruple startLabel]
<> whileStatements
<> Vector.fromList [GoToQuadruple conditionLabel, LabelQuadruple endLabel]
statement localTable (AST.CallStatement (AST.Identifier callName) arguments) =
let (parameterStatements, argumentStatements)
= bimap (Vector.fromList . fmap ParameterQuadruple) Vector.concat
$ unzip
$ expression localTable <$> arguments
in Vector.snoc (argumentStatements <> parameterStatements)
$ CallQuadruple (Variable callName)
$ fromIntegral
$ Vector.length argumentStatements
statement localTable (AST.CompoundStatement statements) = statement localTable (AST.CompoundStatement statements) =
foldMap (statement localTable) statements foldMap (statement localTable) statements