Use smart casts in hasSideEffects()

Signed-off-by: Graham <gpe@openrs2.dev>
Graham 4 years ago
parent 8f0dfd2725
commit bde818230b
  1. 29
      deob-ast/src/main/java/dev/openrs2/deob/ast/util/ExprUtils.kt

@ -1,10 +1,15 @@
package dev.openrs2.deob.ast.util
import com.github.javaparser.ast.expr.ArrayAccessExpr
import com.github.javaparser.ast.expr.BinaryExpr
import com.github.javaparser.ast.expr.BooleanLiteralExpr
import com.github.javaparser.ast.expr.Expression
import com.github.javaparser.ast.expr.FieldAccessExpr
import com.github.javaparser.ast.expr.IntegerLiteralExpr
import com.github.javaparser.ast.expr.LiteralExpr
import com.github.javaparser.ast.expr.LongLiteralExpr
import com.github.javaparser.ast.expr.NameExpr
import com.github.javaparser.ast.expr.ThisExpr
import com.github.javaparser.ast.expr.UnaryExpr
fun IntegerLiteralExpr.checkedAsInt(): Int {
@ -116,23 +121,15 @@ fun Expression.countNots(): Int {
}
fun Expression.hasSideEffects(): Boolean {
if (isLiteralExpr || isNameExpr || isThisExpr) {
return false
} else if (isUnaryExpr) {
return asUnaryExpr().expression.hasSideEffects()
} else if (isBinaryExpr) {
val binary = asBinaryExpr()
return binary.left.hasSideEffects() || binary.right.hasSideEffects()
} else if (isArrayAccessExpr) {
val access = asArrayAccessExpr()
return access.name.hasSideEffects() || access.index.hasSideEffects()
} else if (isFieldAccessExpr) {
val access = asFieldAccessExpr()
return access.scope.hasSideEffects()
}
return when (this) {
is LiteralExpr, is NameExpr, is ThisExpr -> false
is UnaryExpr -> expression.hasSideEffects()
is BinaryExpr -> left.hasSideEffects() || right.hasSideEffects()
is ArrayAccessExpr -> name.hasSideEffects() || index.hasSideEffects()
is FieldAccessExpr -> scope.hasSideEffects()
// TODO(gpe): more cases
return true
else -> true
}
}
fun BinaryExpr.Operator.flip(): BinaryExpr.Operator? {

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