Package ghidra.app.plugin.assembler.sleigh.expr.match

Class AbstractExpressionMatcher<T extends PatternExpression>

java.lang.Object

ghidra.app.plugin.assembler.sleigh.expr.match.AbstractExpressionMatcher<T>

Type Parameters:

T - the type of expression matched

All Implemented Interfaces:

ExpressionMatcher<T>

Direct Known Subclasses:

AnyMatcher, BinaryExpressionMatcher, ConstantValueMatcher, FieldSizeMatcher, OperandValueMatcher, UnaryExpressionMatcher

public abstract class AbstractExpressionMatcher<T extends PatternExpression>
extends Object
implements ExpressionMatcher<T>

Base implementation for expression matchers

Nested Class Summary

Nested classes/interfaces inherited from interface ghidra.app.plugin.assembler.sleigh.expr.match.ExpressionMatcher

ExpressionMatcher.Context

Field Summary

Fields

Modifier and Type	Field	Description
protected final Set<Class<? extends T>>	ops

Constructor Summary

Constructors

Constructor	Description
AbstractExpressionMatcher(Class<? extends T> cls)
AbstractExpressionMatcher(Set<Class<? extends T>> ops)

Method Summary

Modifier and Type	Method	Description
protected static boolean	expressionsIdenticallyDefined(PatternExpression a, PatternExpression b)
boolean	match(PatternExpression expression, Map<ExpressionMatcher<?>,PatternExpression> result)	Attempt to match the given expression, recording substitutions in the given map
protected abstract boolean	matchDetails(T expression, Map<ExpressionMatcher<?>,PatternExpression> result)
protected T	opMatches(PatternExpression expression)
protected boolean	recordResult(PatternExpression expression, Map<ExpressionMatcher<?>,PatternExpression> result)

Methods inherited from class java.lang.Object

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

Methods inherited from interface ghidra.app.plugin.assembler.sleigh.expr.match.ExpressionMatcher

get, match

Field Details

ops

protected final Set<Class<? extends T extends PatternExpression>> ops

Constructor Details

AbstractExpressionMatcher

public AbstractExpressionMatcher(Set<Class<? extends T>> ops)

AbstractExpressionMatcher

public AbstractExpressionMatcher(Class<? extends T> cls)

Method Details

opMatches

protected T opMatches(PatternExpression expression)

matchDetails

protected abstract boolean matchDetails(T expression,
 Map<ExpressionMatcher<?>,PatternExpression> result)

match

public boolean match(PatternExpression expression,
 Map<ExpressionMatcher<?>,PatternExpression> result)

Description copied from interface: ExpressionMatcher

Attempt to match the given expression, recording substitutions in the given map

Even if the match was unsuccessful, the result map may contain attempted substitutions. Thus, the map should be discarded if unsuccessful.

Specified by:

match in interface ExpressionMatcher<T extends PatternExpression>

Parameters:

expression - the expression to match

result - a map to store matchers to substituted expressions

Returns:

true if successful, false if not

recordResult

protected boolean recordResult(PatternExpression expression,
 Map<ExpressionMatcher<?>,PatternExpression> result)

expressionsIdenticallyDefined

protected static boolean expressionsIdenticallyDefined(PatternExpression a,
 PatternExpression b)