Class JumpInstruction
java.lang.Object
de.inetsoftware.jwebassembly.module.WasmInstruction
de.inetsoftware.jwebassembly.module.JumpInstruction
Placeholder for a jump to inspect the stack. It is like a nop operation.
-
Nested Class Summary
Nested classes/interfaces inherited from class de.inetsoftware.jwebassembly.module.WasmInstruction
WasmInstruction.Type
-
Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionJumpInstruction
(int jumpPos, int popCount, AnyType pushValueType, int javaCodePos, int lineNumber) Create an instance of a nop instruction -
Method Summary
Modifier and TypeMethodDescription(package private) int
Get the jump position(package private) int
Get the count of values that are removed from the stack.(package private) AnyType[]
(package private) AnyType
Get the ValueType if this instruction push a value on the stack.(package private) WasmInstruction.Type
getType()
Get the type of instructionvoid
writeTo
(ModuleWriter writer) Write this instruction to the WASM module.Methods inherited from class de.inetsoftware.jwebassembly.module.WasmInstruction
getCodePosition, getLineNumber, setCodePosition
-
Field Details
-
jumpPos
private int jumpPos -
popCount
private int popCount -
pushValueType
-
-
Constructor Details
-
JumpInstruction
JumpInstruction(int jumpPos, int popCount, AnyType pushValueType, int javaCodePos, int lineNumber) Create an instance of a nop instruction- Parameters:
jumpPos
- the position of the jumppopCount
- the the count of values that are removed from the stack.pushValueType
- optional type of a push valuejavaCodePos
- the code position/offset in the Java methodlineNumber
- the line number in the Java source code
-
-
Method Details
-
getType
WasmInstruction.Type getType()Get the type of instruction- Specified by:
getType
in classWasmInstruction
- Returns:
- the type
-
writeTo
Write this instruction to the WASM module.- Specified by:
writeTo
in classWasmInstruction
- 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 classWasmInstruction
- 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 classWasmInstruction
- Returns:
- the count
-
getJumpPosition
int getJumpPosition()Get the jump position- Returns:
- the position
-
getPopValueTypes
AnyType[] getPopValueTypes()- Specified by:
getPopValueTypes
in classWasmInstruction
-