Package org.eolang.jeo.representation.bytecode

Interface BytecodeEntry

All Known Implementing Classes:

BytecodeFrame, BytecodeInstruction, BytecodeLabel, BytecodeLine, BytecodeTryCatchBlock

public interface BytecodeEntry

Bytecode instruction or a label. Might be a label, a jump, a method call, etc.

Since:

0.1

Method Summary

Modifier and Type	Method	Description
Iterable<org.xembly.Directive>	directives(boolean counting)	Convert entry to directives.
int	impact()	Impact of the instruction on the stack.
boolean	isIf()	Is this instruction a conditional branch?
boolean	isJump()	Is this instruction a goto? Is it a goto or jsr?
boolean	isLabel()	Is this instruction a label?
boolean	isOpcode()	Is this instruction a regular opcode?
boolean	isReturn()	Is this instruction a return statement?
boolean	isSwitch()	Is this instruction a switch?
boolean	isThrow()	Is this instruction a throw statement?
List<BytecodeLabel>	jumps()	Jump to a label.
String	view()	Human-readable representation.
void	writeTo(org.objectweb.asm.MethodVisitor visitor, AsmLabels labels)	Write instruction to the method visitor.

Method Detail

writeTo

void writeTo(org.objectweb.asm.MethodVisitor visitor,
             AsmLabels labels)

Write instruction to the method visitor.

Parameters:

visitor - Method visitor.

labels - Method labels.

directives

Iterable<org.xembly.Directive> directives(boolean counting)

Convert entry to directives.

Parameters:

counting - Do we need to add numbers to entry names?

Returns:

Directives.

isLabel

boolean isLabel()

Is this instruction a label?

Returns:

True if it is.

isSwitch

boolean isSwitch()

Is this instruction a switch?

Returns:

True if it is.

isJump

boolean isJump()

Is this instruction a goto? Is it a goto or jsr?

Returns:

True if it is.

isIf

boolean isIf()

Is this instruction a conditional branch?

Returns:

True if it is.

isReturn

boolean isReturn()

Is this instruction a return statement?

Returns:

True if it is.

isThrow

boolean isThrow()

Is this instruction a throw statement?

Returns:

True if it is.

isOpcode

boolean isOpcode()

Is this instruction a regular opcode?

Returns:

True if it is.

impact

int impact()

Impact of the instruction on the stack.

Returns:

Stack impact.

jumps

List<BytecodeLabel> jumps()

Jump to a label. Where to jump.

Returns:

Jumps.

view

String view()

Human-readable representation.

Returns:

Text.