Class WasmLocalInstruction
java.lang.Object
de.inetsoftware.jwebassembly.module.WasmInstruction
de.inetsoftware.jwebassembly.module.WasmLocalInstruction
- Direct Known Subclasses:
WasmLoadStoreInstruction
WasmInstruction for load and store local variables.
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Nested Class Summary
Nested classes/interfaces inherited from class de.inetsoftware.jwebassembly.module.WasmInstruction
WasmInstruction.Type
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate int
The variable slot (Java) for WasmLoadStoreInstruction and the WebAssembly variable index for a WasmLocalInstruction instance.(package private) final LocaleVariableManager
private VariableOperator
private AnyType
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Constructor Summary
ConstructorsConstructorDescriptionWasmLocalInstruction
(VariableOperator op, int idx, LocaleVariableManager localVariables, int javaCodePos, int lineNumber) Create an instance of a load/store instruction for a local variable. -
Method Summary
Modifier and TypeMethodDescription(package private) int
getIndex()
Get the number of the locals(package private) VariableOperator
Get the operator(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) int
getSlot()
Get the slot of the locals(package private) WasmInstruction.Type
getType()
Get the type of instruction(package private) void
Set the operatorvoid
writeTo
(ModuleWriter writer) Write this instruction to the WASM module.Methods inherited from class de.inetsoftware.jwebassembly.module.WasmInstruction
getCodePosition, getLineNumber, setCodePosition
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Field Details
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op
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idx
private int idxThe variable slot (Java) for WasmLoadStoreInstruction and the WebAssembly variable index for a WasmLocalInstruction instance. -
localVariables
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pushValueType
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Constructor Details
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WasmLocalInstruction
WasmLocalInstruction(@Nonnull VariableOperator op, @Nonnegative int idx, LocaleVariableManager localVariables, int javaCodePos, int lineNumber) Create an instance of a load/store instruction for a local variable.- Parameters:
op
- the operationidx
- the memory/slot idx of the variablelocalVariables
- the manager for local variablesjavaCodePos
- the code position/offset in the Java methodlineNumber
- the line number in the Java source code
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Method Details
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getType
WasmInstruction.Type getType()Get the type of instruction- Specified by:
getType
in classWasmInstruction
- Returns:
- the type
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getOperator
Get the operator- Returns:
- the operator
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setOperator
Set the operator- Parameters:
op
- the operator
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getSlot
Get the slot of the locals- Returns:
- the Java slot for the variable
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getIndex
Get the number of the locals- Returns:
- the index, mostly the Wasm Index
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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
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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
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getPopCount
int getPopCount()Get the count of values that are removed from the stack.- Specified by:
getPopCount
in classWasmInstruction
- Returns:
- the count
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getPopValueTypes
AnyType[] getPopValueTypes()- Specified by:
getPopValueTypes
in classWasmInstruction
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