Open-source multiplayer game server compatible with the RuneScape client
https://www.openrs2.org/
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40 lines
1.4 KiB
40 lines
1.4 KiB
package dev.openrs2.deob.ast.transform
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import com.github.javaparser.ast.CompilationUnit
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import com.github.javaparser.ast.Node
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import com.github.javaparser.ast.expr.UnaryExpr
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import com.github.javaparser.ast.stmt.ExpressionStmt
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import com.github.javaparser.ast.stmt.ForStmt
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import dev.openrs2.deob.ast.util.walk
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class IncrementTransformer : Transformer() {
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override fun transform(unit: CompilationUnit) {
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unit.walk(Node.TreeTraversal.POSTORDER) { stmt: ExpressionStmt ->
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if (!stmt.expression.isUnaryExpr) {
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return@walk
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}
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val unaryExpr = stmt.expression.asUnaryExpr()
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unaryExpr.operator = prefixToPostfix(unaryExpr.operator)
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}
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unit.walk(Node.TreeTraversal.POSTORDER) { stmt: ForStmt ->
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for (expr in stmt.update) {
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if (!expr.isUnaryExpr) {
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continue
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}
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val unaryExpr = expr.asUnaryExpr()
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unaryExpr.operator = prefixToPostfix(unaryExpr.operator)
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}
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}
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}
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companion object {
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private fun prefixToPostfix(operator: UnaryExpr.Operator) = when (operator) {
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UnaryExpr.Operator.PREFIX_INCREMENT -> UnaryExpr.Operator.POSTFIX_INCREMENT
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UnaryExpr.Operator.PREFIX_DECREMENT -> UnaryExpr.Operator.POSTFIX_DECREMENT
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else -> operator
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}
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}
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}
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