Package de.inetsoftware.jwebassembly.module

Class WasmInstruction

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      (package private) static class  WasmInstruction.Type
      Type of instruction to faster differ as with instanceof.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int javaCodePos  
      private int lineNumber  

    • Constructor Summary

      Constructors 
      Constructor Description
      WasmInstruction​(int javaCodePos, int lineNumber)
      Create a new instance of an instruction

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      (package private) int getCodePosition()
      Get current code position in Java method.
      (package private) int getLineNumber()
      Get the line number in the Java source file
      (package private) abstract int getPopCount()
      Get the count of values that are removed from the stack.
      (package private) abstract AnyType[] getPopValueTypes()  
      (package private) abstract AnyType getPushValueType()
      Get the ValueType if this instruction push a value on the stack.
      (package private) abstract WasmInstruction.Type getType()
      Get the type of instruction
      (package private) void setCodePosition​(int newPos)
      Set a new code position after reorganize the order
      (package private) abstract void writeTo​(ModuleWriter writer)
      Write this instruction to the WASM module.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • javaCodePos

        private int javaCodePos

      • lineNumber

        private final int lineNumber

    • Constructor Detail

      • WasmInstruction

        WasmInstruction​(int javaCodePos,
                int lineNumber)
        Create a new instance of an instruction
        Parameters:
        javaCodePos - the code position/offset in the Java method
        lineNumber - the line number in the Java source code

    • Method Detail

      • getType

        @Nonnull
abstract WasmInstruction.Type getType()
        Get the type of instruction
        Returns:
        the type

      • writeTo

        abstract void writeTo​(@Nonnull
                      ModuleWriter writer)
               throws java.io.IOException
        Write this instruction to the WASM module.
        Parameters:
        writer - the target writer
        Throws:
        java.io.IOException - if any I/O error occur

      • getCodePosition

        int getCodePosition()
        Get current code position in Java method.
        Returns:
        the position

      • getLineNumber

        int getLineNumber()
        Get the line number in the Java source file
        Returns:
        the line number

      • setCodePosition

        void setCodePosition​(int newPos)
        Set a new code position after reorganize the order
        Parameters:
        newPos - new position

      • getPushValueType

        @Nullable
abstract AnyType getPushValueType()
        Get the ValueType if this instruction push a value on the stack.
        Returns:
        the ValueType or null if no value is push

      • getPopCount

        abstract int getPopCount()
        Get the count of values that are removed from the stack.
        Returns:
        the count

      • getPopValueTypes

        abstract AnyType[] getPopValueTypes()