SpigletTranslator

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piglet.translate
Class SpigletTranslator

java.lang.Object
  piglet.visitor.GJDepthFirst<SpigletResult,SpigletContext>
      piglet.translate.SpigletTranslator

All Implemented Interfaces:: GJVisitor<SpigletResult,SpigletContext>

public final class SpigletTranslator
extends GJDepthFirst<SpigletResult,SpigletContext>
extends GJDepthFirst<SpigletResult,SpigletContext>

Translates a Piglet AST to a Spiglet AST. The grammar for the Spiglet language can be found here, and its specification here.

Author:: Santoso Wijaya

Constructor Summary
`SpigletTranslator()` Creates a translator visitor.

Method Summary
`Goal`	`translate(Goal p)` Visits a Piglet AST, constructing a Spiglet AST along the way, and then returns the root of the latter tree.
`SpigletResult`	`visit(BinOp n, SpigletContext argu)` operator -> Operator() exp -> Exp() exp1 -> Exp()
`SpigletResult`	`visit(Call n, SpigletContext argu)` nodeToken -> "CALL" exp -> Exp() nodeToken1 -> "(" nodeListOptional -> ( Exp() )* nodeToken2 -> ")"
`SpigletResult`	`visit(CJumpStmt n, SpigletContext argu)` nodeToken -> "CJUMP" exp -> Exp() label -> Label()
`SpigletResult`	`visit(ErrorStmt n, SpigletContext argu)` nodeToken -> "ERROR"
`SpigletResult`	`visit(Exp n, SpigletContext argu)` nodeChoice -> StmtExp() \| Call() \| HAllocate() \| BinOp() \| Temp() \| IntegerLiteral() \| Label()
`SpigletResult`	`visit(HAllocate n, SpigletContext argu)` nodeToken -> "HALLOCATE" exp -> Exp()
`SpigletResult`	`visit(HLoadStmt n, SpigletContext argu)` nodeToken -> "HLOAD" temp -> Temp() exp -> Exp() integerLiteral -> IntegerLiteral()
`SpigletResult`	`visit(HStoreStmt n, SpigletContext argu)` nodeToken -> "HSTORE" exp -> Exp() integerLiteral -> IntegerLiteral() exp1 -> Exp()
`SpigletResult`	`visit(IntegerLiteral n, SpigletContext argu)` nodeToken -> <INTEGER_LITERAL>
`SpigletResult`	`visit(JumpStmt n, SpigletContext argu)` nodeToken -> "JUMP" label -> Label()
`SpigletResult`	`visit(Label n, SpigletContext argu)` nodeToken -> <IDENTIFIER>
`SpigletResult`	`visit(MoveStmt n, SpigletContext argu)` nodeToken -> "MOVE" temp -> Temp() exp -> Exp()
`SpigletResult`	`visit(NoOpStmt n, SpigletContext argu)` nodeToken -> "NOOP"
`SpigletResult`	`visit(PrintStmt n, SpigletContext argu)` nodeToken -> "PRINT" exp -> Exp()
`SpigletResult`	`visit(Procedure n, SpigletContext argu)` label -> Label() nodeToken -> "[" integerLiteral -> IntegerLiteral() nodeToken1 -> "]" stmtExp -> StmtExp()
`SpigletResult`	`visit(StmtExp n, SpigletContext argu)` nodeToken -> "BEGIN" stmtList -> StmtList() nodeToken1 -> "RETURN" exp -> Exp() nodeToken2 -> "END"
`SpigletResult`	`visit(StmtList n, SpigletContext argu)` nodeListOptional -> ( ( Label() )? Stmt() )*
`SpigletResult`	`visit(Temp n, SpigletContext argu)` nodeToken -> "TEMP" integerLiteral -> IntegerLiteral()

Methods inherited from class piglet.visitor.GJDepthFirst
`visit, visit, visit, visit, visit, visit, visit, visit`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

SpigletTranslator

public SpigletTranslator()

Creates a translator visitor. Call translate(piglet.syntaxtree.Goal) to produce a Spiglet AST from a given Piglet AST.

Method Detail

translate

public Goal translate(Goal p)

Visits a Piglet AST, constructing a Spiglet AST along the way, and then returns the root of the latter tree.

Parameters:: p - the Piglet AST's root node (Goal)
Returns:: the root of the translated Spiglet AST (Goal)