Module com.dylibso.chicory.runtime

Package com.dylibso.chicory.runtime

Class InterpreterMachine

java.lang.Object

com.dylibso.chicory.runtime.InterpreterMachine

All Implemented Interfaces:

Machine

Direct Known Subclasses:

CompilerInterpreterMachine

public class InterpreterMachine
extends Object
implements Machine

This is responsible for holding and interpreting the Wasm code.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	InterpreterMachine.Operands

Field Summary

Fields

Modifier and Type	Field	Description
protected final Deque<StackFrame>	callStack

Constructor Summary

Constructors

Constructor	Description
InterpreterMachine(Instance instance)

Method Summary

Modifier and Type	Method	Description
long[]	call(int funcId, long[] args)
protected long[]	call(MStack stack, Instance instance, Deque<StackFrame> callStack, int funcId, long[] args, com.dylibso.chicory.wasm.types.FunctionType callType, boolean popResults)
protected void	CALL(InterpreterMachine.Operands operands)
protected void	eval(MStack stack, Instance instance, Deque<StackFrame> callStack)
protected void	evalDefault(MStack stack, Instance instance, Deque<StackFrame> callStack, com.dylibso.chicory.wasm.types.Instruction instruction, InterpreterMachine.Operands operands)
protected static long[]	extractArgsForParams(MStack stack, List<com.dylibso.chicory.wasm.types.ValType> params)
protected Instance	instance()
protected static int	readMemPtr(MStack stack, InterpreterMachine.Operands operands)
protected MStack	stack()
protected static StackFrame	THROW_REF(Instance instance, int exceptionIdx, MStack stack, StackFrame frame, Deque<StackFrame> callStack)
protected boolean	useCurrentInstanceInterpreter(Instance instance, Instance refInstance, int funcId)
protected static void	verifyIndirectCall(com.dylibso.chicory.wasm.types.FunctionType actual, com.dylibso.chicory.wasm.types.FunctionType expected)

Methods inherited from class java.lang.Object

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

Field Details

callStack

protected final Deque<StackFrame> callStack

Constructor Details

InterpreterMachine

public InterpreterMachine(Instance instance)

Method Details

evalDefault

protected void evalDefault(MStack stack,
 Instance instance,
 Deque<StackFrame> callStack,
 com.dylibso.chicory.wasm.types.Instruction instruction,
 InterpreterMachine.Operands operands)
                    throws com.dylibso.chicory.wasm.ChicoryException

Throws:

com.dylibso.chicory.wasm.ChicoryException

call

public long[] call(int funcId,
 long[] args)
            throws com.dylibso.chicory.wasm.ChicoryException

Specified by:

call in interface Machine

Throws:

com.dylibso.chicory.wasm.ChicoryException

call

protected long[] call(MStack stack,
 Instance instance,
 Deque<StackFrame> callStack,
 int funcId,
 long[] args,
 com.dylibso.chicory.wasm.types.FunctionType callType,
 boolean popResults)
               throws com.dylibso.chicory.wasm.ChicoryException

Throws:

com.dylibso.chicory.wasm.ChicoryException

instance

protected Instance instance()

stack

protected MStack stack()

eval

protected void eval(MStack stack,
 Instance instance,
 Deque<StackFrame> callStack)
             throws com.dylibso.chicory.wasm.ChicoryException

Throws:

com.dylibso.chicory.wasm.ChicoryException

CALL

protected void CALL(InterpreterMachine.Operands operands)

readMemPtr

protected static int readMemPtr(MStack stack,
 InterpreterMachine.Operands operands)

useCurrentInstanceInterpreter

protected boolean useCurrentInstanceInterpreter(Instance instance,
 Instance refInstance,
 int funcId)

THROW_REF

protected static StackFrame THROW_REF(Instance instance,
 int exceptionIdx,
 MStack stack,
 StackFrame frame,
 Deque<StackFrame> callStack)

extractArgsForParams

protected static long[] extractArgsForParams(MStack stack,
 List<com.dylibso.chicory.wasm.types.ValType> params)

verifyIndirectCall

protected static void verifyIndirectCall(com.dylibso.chicory.wasm.types.FunctionType actual,
 com.dylibso.chicory.wasm.types.FunctionType expected)
                                  throws com.dylibso.chicory.wasm.ChicoryException

Throws:

com.dylibso.chicory.wasm.ChicoryException