Class ControlFlowChainInstr

java.lang.Object
org.ek9lang.compiler.ir.IRInstr
org.ek9lang.compiler.ir.ControlFlowChainInstr
All Implemented Interfaces:
INode
public final class ControlFlowChainInstr extends IRInstr
Unified IR instruction for all EK9 control flow constructs.

This instruction replaces and unifies the following specialized IR opcodes: - QUESTION_BLOCK (Question operator ?) - GUARDED_ASSIGNMENT_BLOCK (Guarded assignment :=?) - Future: IF_BLOCK, SWITCH_BLOCK constructs

Key architectural benefits: - Single source of truth for all control flow logic - Consistent memory management across all constructs - Enhanced backend optimization opportunities - Reduced IR complexity and maintenance burden

Backends can optimize based on chainType hints and optimization metadata: - QUESTION_OPERATOR: Null check + method call optimization - IF_ELSE/IF_ELSE_IF: Standard conditional branching - SWITCH/SWITCH_ENUM: Jump tables, binary search, or sequential evaluation

  • Method Details

    • controlFlowChain

      public static ControlFlowChainInstr controlFlowChain(ControlFlowChainDetails details)
      Create a unified switch chain block instruction.

    • getChainType

      public String getChainType()
      Get the type of control flow construct.

    • getEvaluationVariable

      public String getEvaluationVariable()
      Get the variable being evaluated (for switch statements).

    • getEvaluationVariableType

      public String getEvaluationVariableType()
      Get the type of the evaluation variable.

    • getEvaluationVariableSetup

      public List<IRInstr> getEvaluationVariableSetup()
      Get instructions to setup the evaluation variable.

    • getReturnVariable

      public String getReturnVariable()
      Get the explicit return variable.

    • getReturnVariableType

      public String getReturnVariableType()
      Get the type of the return variable.

    • getReturnVariableSetup

      public List<IRInstr> getReturnVariableSetup()
      Get instructions to setup the return variable.

    • getConditionChain

      public List<ConditionCase> getConditionChain()
      Get the sequential condition chain.

    • getDefaultBodyEvaluation

      public List<IRInstr> getDefaultBodyEvaluation()
      Get the default/else case evaluation instructions.

    • getDefaultResult

      public String getDefaultResult()
      Get the default case result variable.

    • getEnumOptimizationInfo

      public EnumOptimizationInfo getEnumOptimizationInfo()
      Get enum optimization information.

    • getScopeId

      public String getScopeId()
      Get the scope ID for memory management.

    • hasEvaluationVariable

      public boolean hasEvaluationVariable()
      Check if this construct has an evaluation variable.

    • hasReturnVariable

      public boolean hasReturnVariable()
      Check if this construct has a return variable.

    • hasDefaultCase

      public boolean hasDefaultCase()
      Check if this construct has a default case.

    • hasEnumOptimization

      public boolean hasEnumOptimization()
      Check if this construct has enum optimization information.

    • isQuestionOperator

      public boolean isQuestionOperator()
      Check if this is a Question operator.

    • isIfElse

      public boolean isIfElse()
      Check if this is an if/else construct.

    • isSwitch

      public boolean isSwitch()
      Check if this is a switch construct.

    • toString

      public String toString()
      Overrides:
      toString in class IRInstr