Uses of Class
org.ek9lang.antlr.EK9Parser.PreFlowStatementContext

Packages that use EK9Parser.PreFlowStatementContext

Package	Description
org.ek9lang.antlr
org.ek9lang.compiler.common	Common parts of processing that can be reused across various phases.
org.ek9lang.compiler.phase1	E - Initial Symbol definition by traversing the 'ANTLR' - 'AST'.
org.ek9lang.compiler.phase3	G - Full Symbol Resolution can now take place.
org.ek9lang.compiler.phase5	I - PRE Intermediate Representation generation checks.
org.ek9lang.compiler.phase7.generator
org.ek9lang.compiler.support	Contains critical general components used in the Ek9Compiler listeners.

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.antlr

Methods in org.ek9lang.antlr that return EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
EK9Parser.PreFlowStatementContext	EK9Parser.ForLoopContext.preFlowStatement()
EK9Parser.PreFlowStatementContext	EK9Parser.ForRangeContext.preFlowStatement()
EK9Parser.PreFlowStatementContext	EK9Parser.PreFlowAndControlContext.preFlowStatement()
final EK9Parser.PreFlowStatementContext	EK9Parser.preFlowStatement()
EK9Parser.PreFlowStatementContext	EK9Parser.TryStatementExpressionContext.preFlowStatement()
EK9Parser.PreFlowStatementContext	EK9Parser.WhileStatementExpressionContext.preFlowStatement()

Methods in org.ek9lang.antlr with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
void	EK9BaseListener.enterPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	Enter a parse tree produced by EK9Parser.preFlowStatement().
void	EK9Listener.enterPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	Enter a parse tree produced by EK9Parser.preFlowStatement().
void	EK9BaseListener.exitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	Exit a parse tree produced by EK9Parser.preFlowStatement().
void	EK9Listener.exitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	Exit a parse tree produced by EK9Parser.preFlowStatement().
T	EK9BaseVisitor.visitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	Visit a parse tree produced by EK9Parser.preFlowStatement().
T	EK9Visitor.visitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	Visit a parse tree produced by EK9Parser.preFlowStatement().

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.compiler.common

Classes in org.ek9lang.compiler.common that implement interfaces with type arguments of type EK9Parser.PreFlowStatementContext

Modifier and Type	Class	Description
final class	LhsFromPreFlowOrError	Access the Symbol for the lhs of the preflow statement.

Methods in org.ek9lang.compiler.common with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
ISymbol	LhsFromPreFlowOrError.apply(EK9Parser.PreFlowStatementContext ctx)

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.compiler.phase1

Methods in org.ek9lang.compiler.phase1 with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
void	DefinitionListener.exitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)	preFlowStatement : (variableDeclaration | assignmentStatement) (WITH|THEN) ;

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.compiler.phase3

Classes in org.ek9lang.compiler.phase3 that implement interfaces with type arguments of type EK9Parser.PreFlowStatementContext

Modifier and Type	Class	Description
(package private) final class	PreFlowStatementOrError	Checks that the pre-flow expressions are valid.

Methods in org.ek9lang.compiler.phase3 with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
(package private) void	InjectedSetCheckOrError.accept(EK9Parser.PreFlowStatementContext ctx)	A declaration or assignment pre-flow whose value is the injected variable: if svc <- injected, if svc := injected then svc?.
void	PreFlowStatementOrError.accept(EK9Parser.PreFlowStatementContext ctx)
void	ExpressionsListener.exitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.compiler.phase5

Classes in org.ek9lang.compiler.phase5 that implement interfaces with type arguments of type EK9Parser.PreFlowStatementContext

Modifier and Type	Class	Description
(package private) final class	GetGuardVariable	Extracts the EXISTING variable a pre-flow assigns: the target of a blind assignment (v := e()) or an assign-if-unset (v :=? e()).

Methods in org.ek9lang.compiler.phase5 with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
(package private) void	SafeAccessRepointOrError.accept(EK9Parser.PreFlowStatementContext ctx)	A construct's pre-flow, judged by its marker before the marker makes the construct safe.
(package private) void	RedundantIsSetCheckOrError.acceptGate(EK9Parser.PreFlowStatementContext preFlow, ConditionResult targetBefore, boolean storesUnset)	The implicit gate of a guard head (<- or :=?), judged once the pre-flow's store has been tracked (D7.1).
List<ISymbol>	GetGuardVariable.apply(EK9Parser.PreFlowStatementContext ctx)
void	PreIRListener.enterPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)
void	LockAnalysisListener.exitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)
void	PreIRListener.exitPreFlowStatement(EK9Parser.PreFlowStatementContext ctx)
protected List<ISymbol>	PossibleExpressionConstruct.getPreFlowAssignedVariables(EK9Parser.PreFlowStatementContext ctx)	The EXISTING variables the pre-flow assigns, which are initialised after the construct whether or not its body runs - see GetGuardVariable.

Constructor parameters in org.ek9lang.compiler.phase5 with type arguments of type EK9Parser.PreFlowStatementContext

Modifier	Constructor	Description
(package private)	ConstructSafeAccessMarker(SymbolsAndScopes symbolsAndScopes, ErrorListener errorListener, Function<C, EK9Parser.PreFlowStatementContext> preFlowOf, Function<C, EK9Parser.ExpressionContext> controlOf, Function<C,IScope> safeScopeOf, Function<C, org.antlr.v4.runtime.ParserRuleContext> conditionEndOf, ContainerChangedBetween containerChangedBetween)

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.compiler.phase7.generator

Methods in org.ek9lang.compiler.phase7.generator with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
GuardedConditionEvaluator.ConditionEvaluation	GuardedConditionEvaluator.evaluate(EK9Parser.ExpressionContext conditionExpr, EK9Parser.PreFlowStatementContext preFlowStmt, VariableDetails conditionResult, String scopeId, DebugInfo debugInfo)	Evaluates a condition expression that may have guard variables.
GuardVariableDetails	LoopGuardHelper.evaluateGuardVariable(EK9Parser.PreFlowStatementContext preFlowStmt, String guardScopeId)	Evaluate guard variable for control flow constructs.
List<IRInstr>	LoopGuardHelper.evaluatePreFlowSetupOnly(EK9Parser.PreFlowStatementContext preFlowStmt)	Emit ONLY the preflow variable setup (declaration/assignment) with NO guard entry check.
List<IRInstr>	GuardedScopeOrchestrator.orchestrate(org.antlr.v4.runtime.tree.ParseTree ctx, EK9Parser.PreFlowStatementContext preFlowStmt, EK9Parser.ReturningParamContext returningParam, Function<GuardedScopeOrchestrator.OrchestratorContext, List<IRInstr>> coreGenerator)	Orchestrate for constructs whose core produces List<IRInstr>.
List<IRInstr>	GuardedScopeOrchestrator.orchestrate(org.antlr.v4.runtime.tree.ParseTree ctx, EK9Parser.PreFlowStatementContext preFlowStmt, EK9Parser.ReturningParamContext returningParam, Function<GuardedScopeOrchestrator.OrchestratorContext, List<IRInstr>> coreGenerator, boolean coreManagesReturnSetup)	Orchestrate with control over return-variable setup placement.
List<IRInstr>	GuardedScopeOrchestrator.orchestrateChain(org.antlr.v4.runtime.tree.ParseTree ctx, EK9Parser.PreFlowStatementContext preFlowStmt, EK9Parser.ReturningParamContext returningParam, Function<GuardedScopeOrchestrator.OrchestratorContext, ControlFlowChainDetails> coreGenerator)	Orchestrate for constructs whose core produces ControlFlowChainDetails.
(package private) List<IRInstr>	GuardedConditionEvaluator.preFlowSetup(EK9Parser.PreFlowStatementContext preFlowStmt)	THE emission of a pre-flow's setup (FLOW-1): the declaration of v <- e() or the assignment of v := e() / v :=? e(), registered in the CURRENT stack scope.
(package private) ISymbol	GuardedConditionEvaluator.preFlowTargetSymbol(EK9Parser.PreFlowStatementContext preFlowStmt)	THE recorded symbol of the variable a pre-flow declares or assigns (FLOW-1).
ISymbol	LoopGuardHelper.preFlowTargetSymbol(EK9Parser.PreFlowStatementContext preFlowStmt)	THE recorded symbol of the variable a pre-flow declares or assigns (FLOW-1), for the constructs that read it themselves (a switch's discriminant).

Uses of EK9Parser.PreFlowStatementContext in org.ek9lang.compiler.support

Classes in org.ek9lang.compiler.support that implement interfaces with type arguments of type EK9Parser.PreFlowStatementContext

Modifier and Type	Class	Description
final class	BooleanTruthGuard	THE Boolean truth guard rule (Steve, 2026-10-07, decision D9.2) - use this, do not re-derive it.
final class	GuardSkipsWholeSwitchOrTry	THE test of a guard (PreFlowCanSkipBody) whose skipping skips a WHOLE switch or try - its other cases, default, catch and finally too (D40) - so an analysis records the state there as a skip path and joins it back after the construct.
final class	GuardTargetNode	THE node whose recorded symbol is a guard's TARGET - the variable its implicit gate set-checks: the variableDeclaration of v <- e(), or the identifier of v :=? e().
final class	PreFlowCanSkipBody	THE single definition of "can this control-flow pre-flow skip the construct body?".
final class	PreFlowOperatorToken	THE operator token of a pre-flow (<-, :=?, := ...): what PreFlowCanSkipBody classifies, and the error location of a check on the guard itself.

Methods in org.ek9lang.compiler.support with parameters of type EK9Parser.PreFlowStatementContext

Modifier and Type	Method	Description
Optional<ISymbol>	BooleanTruthGuard.apply(EK9Parser.PreFlowStatementContext preFlow, ISymbol ek9Boolean)	The target of a Boolean truth guard, if this pre-flow is one.
Optional<org.antlr.v4.runtime.tree.ParseTree>	GuardTargetNode.apply(EK9Parser.PreFlowStatementContext preFlow)	The node to read the guard's target from.
Optional<org.antlr.v4.runtime.Token>	PreFlowOperatorToken.apply(EK9Parser.PreFlowStatementContext preFlow)	The operator token of the pre-flow, if there is one.
boolean	GuardSkipsWholeSwitchOrTry.test(EK9Parser.PreFlowStatementContext preFlow)	True if the guard's skip path bypasses the whole construct.
boolean	PreFlowCanSkipBody.test(EK9Parser.PreFlowStatementContext preFlow)	True iff this pre-flow is a body-skipping guard (<-, :=?).