Class WasmGlobalInstruction

java.lang.Object

de.inetsoftware.jwebassembly.module.WasmInstruction

de.inetsoftware.jwebassembly.module.WasmGlobalInstruction

class WasmGlobalInstruction
extends WasmInstruction

WasmInstruction for set and get global variables.

Nested Class Summary

Nested classes/interfaces inherited from class WasmInstruction

WasmInstruction.Type

Field Summary

Fields

Modifier and Type	Field	Description
private FunctionName	clinit
private boolean	load
private FunctionName	name
private AnyType	type

Constructor Summary

Constructors

Constructor	Description
WasmGlobalInstruction(boolean load, FunctionName name, AnyType type, FunctionName clinit, int javaCodePos, int lineNumber)	Create an instance of a load/store instruction

Method Summary

Modifier and Type	Method	Description
(package private) FunctionName	getFieldName()	The name of the field
(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
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

load

private boolean load

name

private FunctionName name

type

private AnyType type

clinit

private FunctionName clinit

Constructor Details

WasmGlobalInstruction

WasmGlobalInstruction(boolean load,
 @Nonnull
 FunctionName name,
 AnyType type,
 @Nullable
 FunctionName clinit,
 int javaCodePos,
 int lineNumber)

Create an instance of a load/store instruction

Parameters:

load - true: if load or GET

name - the name of the static field

type - the type of the static field

clinit - a reference to the class/static constructor which should executed before access a static field

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

getFieldName

@Nonnull
FunctionName getFieldName()

The name of the field

Returns:

the field

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