net.covers1624.coffeegrinder.bytecode.matching

Class ComparisonMatching

java.lang.Object

net.covers1624.coffeegrinder.bytecode.matching.ComparisonMatching

public class ComparisonMatching
extends java.lang.Object

Created by covers1624 on 22/11/21.

Constructor Summary

Constructors

Constructor and Description
ComparisonMatching()

Method Summary

Modifier and Type	Method and Description
static @Nullable Comparison	matchComparison(@Nullable Instruction insn) Matches the given Instruction to a Comparison instruction.
static @Nullable Comparison	matchComparison(@Nullable Instruction insn, Comparison.ComparisonKind kind) Match the given Instruction to a Comparison of the given kind.
static @Nullable Comparison	matchComparison(@Nullable Instruction insn, Comparison.ComparisonKind kind, LocalVariable left, LocalVariable right) Match the given Instruction to a Comparison of the given kind which loads the given left and right variables.
static @Nullable Comparison	matchEqualNull(@Nullable Instruction insn, LocalVariable variable) Matches a Comparison which checks if the given variable equals LdcNull.
static @Nullable Comparison	matchNotEqualNull(@Nullable Instruction insn, LocalVariable variable) Matches a Comparison which checks if the given variable does not equal LdcNull.

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparisonMatching

public ComparisonMatching()

Method Detail

matchComparison

@Nullable
public static @Nullable Comparison matchComparison(@Nullable
                                                             @Nullable Instruction insn)

Matches the given Instruction to a Comparison instruction.

Parameters:

insn - The Instruction to match.

Returns:

The Comparison or null.

matchComparison

@Nullable
public static @Nullable Comparison matchComparison(@Nullable
                                                             @Nullable Instruction insn,
                                                             Comparison.ComparisonKind kind)

Match the given Instruction to a Comparison of the given kind.

Parameters:

insn - The Instruction to match.

kind - The Kind of comparison.

Returns:

The Comparison or null.

matchComparison

@Nullable
public static @Nullable Comparison matchComparison(@Nullable
                                                             @Nullable Instruction insn,
                                                             Comparison.ComparisonKind kind,
                                                             LocalVariable left,
                                                             LocalVariable right)

Match the given Instruction to a Comparison of the given kind which loads the given left and right variables.

Parameters:

insn - The Instruction to match.

kind - The Kind of comparison.

left - The Left LocalVariable.

right - The right LocalVariable.

Returns:

The Comparison or null.

matchNotEqualNull

@Nullable
public static @Nullable Comparison matchNotEqualNull(@Nullable
                                                               @Nullable Instruction insn,
                                                               LocalVariable variable)

Matches a Comparison which checks if the given variable does not equal LdcNull.

Parameters:

insn - The Instruction to match.

variable - The variable.

Returns:

The Comparison or null

matchEqualNull

@Nullable
public static @Nullable Comparison matchEqualNull(@Nullable
                                                            @Nullable Instruction insn,
                                                            LocalVariable variable)

Matches a Comparison which checks if the given variable equals LdcNull.

Parameters:

insn - The Instruction to match.

variable - The variable.

Returns:

The Comparison or null