Class WasmBlockInstruction

java.lang.Object

de.inetsoftware.jwebassembly.module.WasmInstruction

de.inetsoftware.jwebassembly.module.WasmBlockInstruction

class WasmBlockInstruction
extends WasmInstruction

WasmInstruction for block operation.

Nested Class Summary

Nested classes/interfaces inherited from class WasmInstruction

WasmInstruction.Type

Field Summary

Fields

Modifier and Type	Field	Description
private Object	data
private final WasmBlockOperator	op

Constructor Summary

Constructors

Constructor	Description
WasmBlockInstruction(WasmBlockOperator op, Object data, int javaCodePos, int lineNumber)	Create an instance of block operation.

Method Summary

Modifier and Type	Method	Description
(package private) Object	getData()	Get the current data vale of the instruction
(package private) WasmBlockOperator	getOperation()	Get the operation
(package private) int	getPopCount()	Get the count of values that are removed from the stack.
(package private) AnyType[]	getPopValueTypes()
(package private) AnyType	getPushValueType()	Get the ValueType if this instruction push a value on the stack.
(package private) WasmInstruction.Type	getType()	Get the type of instruction
(package private) void	setData(Object data)	Set a new value for the data
void	writeTo(ModuleWriter writer)	Write this instruction to the WASM module.

Methods inherited from class WasmInstruction

getCodePosition, getLineNumber, setCodePosition

Methods inherited from class Object

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

Field Details

op

private final WasmBlockOperator op

data

private Object data

Constructor Details

WasmBlockInstruction

WasmBlockInstruction(@Nonnull
 WasmBlockOperator op,
 @Nullable
 Object data,
 int javaCodePos,
 int lineNumber)

Create an instance of block operation.

Parameters:

op - the operation

data - extra data depending of the operator

javaCodePos - the code position/offset in the Java method

lineNumber - the line number in the Java source code

Method Details

getType

WasmInstruction.Type getType()

Get the type of instruction

Specified by:

getType in class WasmInstruction

Returns:

the type

getOperation

WasmBlockOperator getOperation()

Get the operation

Returns:

the op

getData

Object getData()

Get the current data vale of the instruction

Returns:

the value

setData

void setData(Object data)

Set a new value for the data

Parameters:

data - the new value

writeTo

public void writeTo(@Nonnull
 ModuleWriter writer)
             throws IOException

Write this instruction to the WASM module.

Specified by:

writeTo in class WasmInstruction

Parameters:

writer - the target writer

Throws:

IOException - if any I/O error occur

getPushValueType

AnyType getPushValueType()

Get the ValueType if this instruction push a value on the stack.

Specified by:

getPushValueType in class WasmInstruction

Returns:

the ValueType or null if no value is push

getPopCount

int getPopCount()

Get the count of values that are removed from the stack.

Specified by:

getPopCount in class WasmInstruction

Returns:

the count

getPopValueTypes

AnyType[] getPopValueTypes()

Specified by:

getPopValueTypes in class WasmInstruction