Open-source multiplayer game server compatible with the RuneScape client
https://www.openrs2.org/
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44 lines
1.7 KiB
44 lines
1.7 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.expr.BinaryExpr
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import dev.openrs2.deob.ast.util.isString
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import dev.openrs2.deob.ast.util.walk
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class BinaryExprOrderTransformer : Transformer() {
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override fun transformUnit(
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units: Map<String, CompilationUnit>,
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unit: CompilationUnit
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) {
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unit.walk { expr: BinaryExpr ->
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val op = expr.operator.flip() ?: return@walk
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val type = expr.calculateResolvedType()
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if (op == BinaryExpr.Operator.PLUS && type.isString()) {
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return@walk
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}
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val left = expr.left
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val right = expr.right
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if (left.isLiteralExpr && !right.isLiteralExpr) {
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expr.operator = op
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expr.left = right.clone()
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expr.right = left.clone()
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}
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}
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}
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private fun BinaryExpr.Operator.flip(): BinaryExpr.Operator? {
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return when (this) {
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BinaryExpr.Operator.PLUS, BinaryExpr.Operator.MULTIPLY -> this
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BinaryExpr.Operator.EQUALS, BinaryExpr.Operator.NOT_EQUALS -> this
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BinaryExpr.Operator.BINARY_AND, BinaryExpr.Operator.BINARY_OR -> this
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BinaryExpr.Operator.XOR, BinaryExpr.Operator.OR, BinaryExpr.Operator.AND -> this
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BinaryExpr.Operator.GREATER -> BinaryExpr.Operator.LESS
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BinaryExpr.Operator.GREATER_EQUALS -> BinaryExpr.Operator.LESS_EQUALS
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BinaryExpr.Operator.LESS -> BinaryExpr.Operator.GREATER
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BinaryExpr.Operator.LESS_EQUALS -> BinaryExpr.Operator.GREATER_EQUALS
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else -> null
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}
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}
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}
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