mirror of
https://github.com/plexusorg/Plex-FAWE.git
synced 2024-11-18 01:46:11 +00:00
Expression changes
This commit is contained in:
MattBDev
parent
2b29266db2
commit
de1bd22f85
@ -38,7 +38,13 @@ import java.lang.invoke.MethodHandle;
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import java.util.List;
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import java.util.Objects;
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import java.util.Stack;
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import java.util.concurrent.*;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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/**
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* Compiles and evaluates expressions.
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@ -80,8 +86,12 @@ public class Expression {
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private final List<String> providedSlots;
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private final ExpressionParser.AllStatementsContext root;
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private final SetMultimap<String, MethodHandle> functions = Functions.getFunctionMap();
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private final CompiledExpression compiledExpression;
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private ExpressionEnvironment environment;
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private final CompiledExpression compiledExpression;
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public static Expression compile(String expression, String... variableNames) throws ExpressionException {
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return new Expression(expression, variableNames);
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}
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private Expression(String expression, String... variableNames) throws ExpressionException {
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slots.putSlot("e", new LocalSlot.Constant(Math.E));
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@ -114,14 +124,6 @@ public class Expression {
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this.compiledExpression = new ExpressionCompiler().compileExpression(root, functions);
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}
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public static Expression compile(String expression, String... variableNames) throws ExpressionException {
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return new Expression(expression, variableNames);
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}
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public static Expression getInstance() {
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return instance.get().peek();
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}
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public double evaluate(double... values) throws EvaluationException {
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return evaluate(values, WorldEdit.getInstance().getConfiguration().calculationTimeout);
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}
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@ -197,6 +199,10 @@ public class Expression {
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return slots;
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}
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public static Expression getInstance() {
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return instance.get().peek();
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}
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private void pushInstance() {
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Stack<Expression> threadLocalExprStack = instance.get();
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if (threadLocalExprStack == null) {
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@ -25,7 +25,6 @@ import com.sk89q.worldedit.antlr.ExpressionParser;
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import com.sk89q.worldedit.internal.expression.BreakException;
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import com.sk89q.worldedit.internal.expression.EvaluationException;
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import com.sk89q.worldedit.internal.expression.ExecutionData;
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import com.sk89q.worldedit.internal.expression.ExpressionHelper;
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import com.sk89q.worldedit.internal.expression.LocalSlot;
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import it.unimi.dsi.fastutil.doubles.Double2ObjectLinkedOpenHashMap;
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import it.unimi.dsi.fastutil.doubles.Double2ObjectMap;
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@ -68,11 +67,39 @@ import static com.sk89q.worldedit.antlr.ExpressionLexer.RIGHT_SHIFT;
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import static com.sk89q.worldedit.antlr.ExpressionLexer.TIMES;
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import static com.sk89q.worldedit.antlr.ExpressionLexer.TIMES_ASSIGN;
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import static com.sk89q.worldedit.internal.expression.ExpressionHelper.WRAPPED_CONSTANT;
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import static com.sk89q.worldedit.internal.expression.ExpressionHelper.check;
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import static com.sk89q.worldedit.internal.expression.ExpressionHelper.evalException;
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import static com.sk89q.worldedit.internal.expression.ExpressionHelper.getArgumentHandleName;
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import static com.sk89q.worldedit.internal.expression.ExpressionHelper.resolveFunction;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.CALL_BINARY_OP;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.DOUBLE_TO_BOOL;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.IS_NULL;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.NEW_LS_CONSTANT;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.NULL_DOUBLE;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.boolToDouble;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.call;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.constantInvoke;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.dedupData;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.doWhileLoop;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.dropData;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.forLoop;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.getSlotValue;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.getVariable;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.initVariable;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.mhGetVariable;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.simpleForLoop;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.standardInvoke;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.switchStatement;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.throwEvalException;
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import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.whileLoop;
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import static java.lang.invoke.MethodHandles.collectArguments;
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import static java.lang.invoke.MethodHandles.constant;
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import static java.lang.invoke.MethodHandles.dropArguments;
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import static java.lang.invoke.MethodHandles.filterArguments;
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import static java.lang.invoke.MethodHandles.guardWithTest;
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import static java.lang.invoke.MethodHandles.identity;
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import static java.lang.invoke.MethodHandles.permuteArguments;
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import static java.lang.invoke.MethodHandles.throwException;
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import static java.lang.invoke.MethodType.methodType;
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/**
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@ -97,7 +124,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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.filter(TerminalNode.class::isInstance)
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.map(TerminalNode.class::cast)
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.collect(Collectors.toList());
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ExpressionHelper.check(children.size() == 1, ctx, "Expected exactly one token, got " + children.size());
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check(children.size() == 1, ctx, "Expected exactly one token, got " + children.size());
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return children.get(0).getSymbol();
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}
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@ -110,7 +137,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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}
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private void checkHandle(MethodHandle mh, ParserRuleContext ctx) {
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ExpressionHelper.check(mh.type().equals(ExpressionHandles.COMPILED_EXPRESSION_SIG), ctx,
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check(mh.type().equals(ExpressionHandles.COMPILED_EXPRESSION_SIG), ctx,
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"Incorrect type returned from handler for " + ctx.getClass());
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}
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@ -119,15 +146,15 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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// if result is null
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IS_NULL.asType(methodType(boolean.class, Double.class)),
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// throw appropriate exception, dropping `result` argument
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MethodHandles.dropArguments(
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ExpressionHandles.throwEvalException(ctx, "Invalid expression for " + name), 0, Double.class
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dropArguments(
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throwEvalException(ctx, "Invalid expression for " + name), 0, Double.class
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),
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// else return the argument we were passed
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MethodHandles.identity(Double.class)
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identity(Double.class)
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);
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// now pass `result` into `guard`
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MethodHandle result = evaluate(ctx).handle;
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return MethodHandles.collectArguments(guard, 0, result);
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return collectArguments(guard, 0, result);
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}
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private MethodHandle evaluateForValue(ParserRuleContext ctx) {
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@ -138,7 +165,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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MethodHandle value = evaluateForNamedValue(boolExpression, "a boolean");
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value = value.asType(value.type().unwrap());
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// Pass `value` into converter, returns (ExecutionData)boolean;
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return MethodHandles.collectArguments(
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return collectArguments(
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DOUBLE_TO_BOOL, 0, value
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);
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}
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@ -147,7 +174,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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ParserRuleContext trueBranch,
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ParserRuleContext falseBranch) {
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// easiest one of the bunch
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return MethodHandles.guardWithTest(
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return guardWithTest(
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evaluateBoolean(condition),
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trueBranch == null ? NULL_DOUBLE : evaluate(trueBranch).handle,
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falseBranch == null ? NULL_DOUBLE : evaluate(falseBranch).handle
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@ -166,7 +193,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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@Override
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public MethodHandle visitWhileStatement(ExpressionParser.WhileStatementContext ctx) {
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return ExpressionHandles.whileLoop(
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return whileLoop(
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evaluateBoolean(ctx.condition),
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evaluate(ctx.body)
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);
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@ -174,7 +201,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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@Override
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public MethodHandle visitDoStatement(ExpressionParser.DoStatementContext ctx) {
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return ExpressionHandles.doWhileLoop(
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return doWhileLoop(
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evaluateBoolean(ctx.condition),
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evaluate(ctx.body)
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);
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@ -182,7 +209,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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@Override
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public MethodHandle visitForStatement(ExpressionParser.ForStatementContext ctx) {
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return ExpressionHandles.forLoop(
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return forLoop(
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evaluate(ctx.init).handle,
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evaluateBoolean(ctx.condition),
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evaluate(ctx.body),
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@ -192,7 +219,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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@Override
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public MethodHandle visitSimpleForStatement(ExpressionParser.SimpleForStatementContext ctx) {
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return ExpressionHandles.simpleForLoop(
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return simpleForLoop(
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evaluateForValue(ctx.first),
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evaluateForValue(ctx.last),
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ctx.counter,
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@ -201,11 +228,9 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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}
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private static final MethodHandle BREAK_STATEMENT =
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ExpressionHandles.dropData(MethodHandles.throwException(Double.class, BreakException.class)
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.bindTo(BreakException.BREAK));
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dropData(throwException(Double.class, BreakException.class).bindTo(BreakException.BREAK));
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private static final MethodHandle CONTINUE_STATEMENT =
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ExpressionHandles.dropData(MethodHandles.throwException(Double.class, BreakException.class)
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.bindTo(BreakException.CONTINUE));
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dropData(throwException(Double.class, BreakException.class).bindTo(BreakException.CONTINUE));
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@Override
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public MethodHandle visitBreakStatement(ExpressionParser.BreakStatementContext ctx) {
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@ -235,15 +260,15 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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ExecNode node = evaluate(body);
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if (label instanceof ExpressionParser.CaseContext) {
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ExpressionParser.CaseContext caseContext = (ExpressionParser.CaseContext) label;
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double key = (double) ExpressionHandles.constantInvoke(evaluateForValue(caseContext.constant));
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ExpressionHelper.check(!cases.containsKey(key), body, "Duplicate cases detected.");
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double key = (double) constantInvoke(evaluateForValue(caseContext.constant));
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check(!cases.containsKey(key), body, "Duplicate cases detected.");
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cases.put(key, node);
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} else {
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ExpressionHelper.check(defaultCase == null, body, "Duplicate default cases detected.");
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check(defaultCase == null, body, "Duplicate default cases detected.");
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defaultCase = node;
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}
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}
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return ExpressionHandles.switchStatement(cases, evaluateForValue(ctx.target), defaultCase);
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return switchStatement(cases, evaluateForValue(ctx.target), defaultCase);
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}
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@Override
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@ -255,8 +280,8 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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public MethodHandle visitPostCrementExpr(ExpressionParser.PostCrementExprContext ctx) {
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Token target = ctx.target;
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int opType = ctx.op.getType();
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return ExpressionHandles.call(data -> {
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LocalSlot.Variable variable = ExpressionHandles.getVariable(data, target);
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return call(data -> {
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LocalSlot.Variable variable = getVariable(data, target);
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double value = variable.getValue();
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if (opType == INCREMENT) {
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value++;
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@ -272,8 +297,8 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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public MethodHandle visitPreCrementExpr(ExpressionParser.PreCrementExprContext ctx) {
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Token target = ctx.target;
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int opType = ctx.op.getType();
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return ExpressionHandles.call(data -> {
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LocalSlot.Variable variable = ExpressionHandles.getVariable(data, target);
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return call(data -> {
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LocalSlot.Variable variable = getVariable(data, target);
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double value = variable.getValue();
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double result = value;
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if (opType == INCREMENT) {
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@ -293,19 +318,15 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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case PLUS:
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return value;
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case MINUS:
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return ExpressionHandles.call(data ->
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-(double) ExpressionHandles.standardInvoke(value, data)
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);
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return call(data -> -(double) standardInvoke(value, data));
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}
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throw ExpressionHelper.evalException(ctx, "Invalid text for plus/minus expr: " + ctx.op.getText());
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throw evalException(ctx, "Invalid text for plus/minus expr: " + ctx.op.getText());
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}
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@Override
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public MethodHandle visitNotExpr(ExpressionParser.NotExprContext ctx) {
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MethodHandle expr = evaluateBoolean(ctx.expr);
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return ExpressionHandles.call(data ->
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ExpressionHandles.boolToDouble(!(boolean) ExpressionHandles.standardInvoke(expr, data))
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);
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return call(data -> boolToDouble(!(boolean) standardInvoke(expr, data)));
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}
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@Override
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@ -315,21 +336,17 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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// - Convert back to double from following long
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// - Convert to long from double value
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// - Convert from Object to Double to double.
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return ExpressionHandles.call(data ->
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(double) ~(long) (double) ExpressionHandles.standardInvoke(expr, data)
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);
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return call(data -> (double) ~(long) (double) standardInvoke(expr, data));
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}
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@Override
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public MethodHandle visitConditionalAndExpr(ExpressionParser.ConditionalAndExprContext ctx) {
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MethodHandle left = evaluateBoolean(ctx.left);
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MethodHandle right = evaluateForValue(ctx.right);
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return MethodHandles.guardWithTest(
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return guardWithTest(
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left,
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right,
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ExpressionHandles.dropData(
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MethodHandles.constant(Double.class, ExpressionHandles.boolToDouble(false))
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)
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dropData(constant(Double.class, boolToDouble(false)))
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);
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}
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@ -339,24 +356,24 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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MethodHandle right = evaluateForValue(ctx.right);
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// Inject left as primary condition, on failure take right with data parameter
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// logic = (Double,ExecutionData)Double
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MethodHandle logic = MethodHandles.guardWithTest(
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MethodHandle logic = guardWithTest(
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// data arg dropped implicitly
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DOUBLE_TO_BOOL,
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// drop data arg
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MethodHandles.dropArguments(
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MethodHandles.identity(Double.class), 1, ExecutionData.class
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dropArguments(
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identity(Double.class), 1, ExecutionData.class
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),
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// drop left arg, call right
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MethodHandles.dropArguments(
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dropArguments(
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right, 0, Double.class
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)
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);
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// mixed = (ExecutionData,ExecutionData)Double
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MethodHandle mixed = MethodHandles.collectArguments(
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MethodHandle mixed = collectArguments(
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logic, 0, left
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);
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// Deduplicate ExecutionData
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return ExpressionHandles.dedupData(mixed);
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return dedupData(mixed);
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}
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private MethodHandle evaluateBinary(ParserRuleContext left,
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@ -365,12 +382,12 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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MethodHandle mhLeft = evaluateForValue(left);
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MethodHandle mhRight = evaluateForValue(right);
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// Map two data args to two double args, then evaluate op
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MethodHandle doubleData = MethodHandles.filterArguments(
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MethodHandle doubleData = filterArguments(
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CALL_BINARY_OP.bindTo(op), 0,
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mhLeft.asType(mhLeft.type().unwrap()), mhRight.asType(mhRight.type().unwrap())
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);
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doubleData = doubleData.asType(doubleData.type().wrap());
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return ExpressionHandles.dedupData(doubleData);
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return dedupData(doubleData);
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}
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private MethodHandle evaluateBinary(ParserRuleContext left,
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@ -395,7 +412,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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case MODULO:
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return (l, r) -> l % r;
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}
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throw ExpressionHelper.evalException(ctx, "Invalid text for multiplicative expr: " + ctx.op.getText());
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throw evalException(ctx, "Invalid text for multiplicative expr: " + ctx.op.getText());
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});
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}
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@ -408,7 +425,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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case MINUS:
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return (l, r) -> l - r;
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}
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throw ExpressionHelper.evalException(ctx, "Invalid text for additive expr: " + ctx.op.getText());
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throw evalException(ctx, "Invalid text for additive expr: " + ctx.op.getText());
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});
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}
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@ -421,7 +438,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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case RIGHT_SHIFT:
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return (l, r) -> (double) ((long) l >> (long) r);
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}
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throw ExpressionHelper.evalException(ctx, "Invalid text for shift expr: " + ctx.op.getText());
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throw evalException(ctx, "Invalid text for shift expr: " + ctx.op.getText());
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});
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}
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@ -430,15 +447,15 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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return evaluateBinary(ctx.left, ctx.right, () -> {
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switch (ctx.op.getType()) {
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case LESS_THAN:
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return (l, r) -> ExpressionHandles.boolToDouble(l < r);
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return (l, r) -> boolToDouble(l < r);
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case LESS_THAN_OR_EQUAL:
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return (l, r) -> ExpressionHandles.boolToDouble(l <= r);
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return (l, r) -> boolToDouble(l <= r);
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case GREATER_THAN:
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return (l, r) -> ExpressionHandles.boolToDouble(l > r);
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return (l, r) -> boolToDouble(l > r);
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case GREATER_THAN_OR_EQUAL:
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return (l, r) -> ExpressionHandles.boolToDouble(l >= r);
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return (l, r) -> boolToDouble(l >= r);
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}
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throw ExpressionHelper.evalException(ctx, "Invalid text for relational expr: " + ctx.op.getText());
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throw evalException(ctx, "Invalid text for relational expr: " + ctx.op.getText());
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});
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}
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@ -447,15 +464,15 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
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return evaluateBinary(ctx.left, ctx.right, () -> {
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switch (ctx.op.getType()) {
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case EQUAL:
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return (l, r) -> ExpressionHandles.boolToDouble(l == r);
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return (l, r) -> boolToDouble(l == r);
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case NOT_EQUAL:
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return (l, r) -> ExpressionHandles.boolToDouble(l != r);
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return (l, r) -> boolToDouble(l != r);
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case NEAR:
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return (l, r) -> ExpressionHandles.boolToDouble(almostEqual2sComplement(l, r, 450359963L));
|
||||
return (l, r) -> boolToDouble(almostEqual2sComplement(l, r, 450359963L));
|
||||
case GREATER_THAN_OR_EQUAL:
|
||||
return (l, r) -> ExpressionHandles.boolToDouble(l >= r);
|
||||
return (l, r) -> boolToDouble(l >= r);
|
||||
}
|
||||
throw ExpressionHelper.evalException(ctx, "Invalid text for equality expr: " + ctx.op.getText());
|
||||
throw evalException(ctx, "Invalid text for equality expr: " + ctx.op.getText());
|
||||
});
|
||||
}
|
||||
|
||||
@ -481,11 +498,9 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
public MethodHandle visitPostfixExpr(ExpressionParser.PostfixExprContext ctx) {
|
||||
MethodHandle value = evaluateForValue(ctx.expr);
|
||||
if (ctx.op.getType() == EXCLAMATION_MARK) {
|
||||
return ExpressionHandles.call(data ->
|
||||
factorial((double) ExpressionHandles.standardInvoke(value, data))
|
||||
);
|
||||
return call(data -> factorial((double) standardInvoke(value, data)));
|
||||
}
|
||||
throw ExpressionHelper.evalException(ctx,
|
||||
throw evalException(ctx,
|
||||
"Invalid text for post-unary expr: " + ctx.op.getText());
|
||||
}
|
||||
|
||||
@ -517,15 +532,15 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
int type = extractToken(ctx.assignmentOperator()).getType();
|
||||
Token target = ctx.target;
|
||||
MethodHandle getArg = evaluateForValue(ctx.expression());
|
||||
return ExpressionHandles.call(data -> {
|
||||
return call(data -> {
|
||||
double value;
|
||||
double arg = (double) ExpressionHandles.standardInvoke(getArg, data);
|
||||
double arg = (double) standardInvoke(getArg, data);
|
||||
LocalSlot.Variable variable;
|
||||
if (type == ASSIGN) {
|
||||
variable = ExpressionHandles.initVariable(data, target);
|
||||
variable = initVariable(data, target);
|
||||
value = arg;
|
||||
} else {
|
||||
variable = ExpressionHandles.getVariable(data, target);
|
||||
variable = getVariable(data, target);
|
||||
value = variable.getValue();
|
||||
switch (type) {
|
||||
case POWER_ASSIGN:
|
||||
@ -547,7 +562,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
value -= arg;
|
||||
break;
|
||||
default:
|
||||
throw ExpressionHelper.evalException(ctx, "Invalid text for assign expr: " +
|
||||
throw evalException(ctx, "Invalid text for assign expr: " +
|
||||
ctx.assignmentOperator().getText());
|
||||
}
|
||||
}
|
||||
@ -558,7 +573,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
|
||||
@Override
|
||||
public MethodHandle visitFunctionCall(ExpressionParser.FunctionCallContext ctx) {
|
||||
MethodHandle handle = ExpressionHelper.resolveFunction(functions, ctx);
|
||||
MethodHandle handle = resolveFunction(functions, ctx);
|
||||
String fnName = ctx.name.getText();
|
||||
MethodHandle[] arguments = new MethodHandle[ctx.args.size()];
|
||||
for (int i = 0; i < arguments.length; i++) {
|
||||
@ -573,10 +588,10 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
arguments[i] = transformed;
|
||||
}
|
||||
// Take each of our data accepting arguments, apply them over the source method
|
||||
MethodHandle manyData = MethodHandles.filterArguments(handle, 0, arguments);
|
||||
MethodHandle manyData = filterArguments(handle, 0, arguments);
|
||||
// Collapse every data into one argument
|
||||
int[] permutation = new int[arguments.length];
|
||||
return MethodHandles.permuteArguments(
|
||||
return permuteArguments(
|
||||
manyData, ExpressionHandles.COMPILED_EXPRESSION_SIG, permutation
|
||||
);
|
||||
}
|
||||
@ -584,7 +599,7 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
// MH: (ExecutionData)T; (depends on target)
|
||||
private MethodHandle getArgument(String fnName, MethodType type, int i, ParserRuleContext arg) {
|
||||
// Pass variable handle in for modification?
|
||||
String handleName = ExpressionHelper.getArgumentHandleName(fnName, type, i, arg);
|
||||
String handleName = getArgumentHandleName(fnName, type, i, arg);
|
||||
if (handleName == null) {
|
||||
return evaluateForValue(arg);
|
||||
}
|
||||
@ -592,39 +607,37 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
// pass arg into new LocalSlot.Constant
|
||||
MethodHandle filter = evaluateForValue(arg);
|
||||
filter = filter.asType(filter.type().unwrap());
|
||||
return MethodHandles.collectArguments(
|
||||
return collectArguments(
|
||||
NEW_LS_CONSTANT, 0, filter
|
||||
);
|
||||
}
|
||||
// small hack
|
||||
CommonToken fake = new CommonToken(arg.start);
|
||||
fake.setText(handleName);
|
||||
return ExpressionHandles.mhGetVariable(fake);
|
||||
return mhGetVariable(fake);
|
||||
}
|
||||
|
||||
@Override
|
||||
public MethodHandle visitConstantExpression(ExpressionParser.ConstantExpressionContext ctx) {
|
||||
try {
|
||||
return ExpressionHandles.dropData(
|
||||
MethodHandles.constant(Double.class, Double.parseDouble(ctx.getText()))
|
||||
);
|
||||
return dropData(constant(Double.class, Double.parseDouble(ctx.getText())));
|
||||
} catch (NumberFormatException e) {
|
||||
// Rare, but might happen, e.g. if too many digits
|
||||
throw ExpressionHelper.evalException(ctx, "Invalid constant: " + e.getMessage());
|
||||
throw evalException(ctx, "Invalid constant: " + e.getMessage());
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public MethodHandle visitIdExpr(ExpressionParser.IdExprContext ctx) {
|
||||
Token source = ctx.source;
|
||||
return ExpressionHandles.call(data -> ExpressionHandles.getSlotValue(data, source));
|
||||
return call(data -> getSlotValue(data, source));
|
||||
}
|
||||
|
||||
/**
|
||||
* Method handle (ExecutionData)Double, returns null.
|
||||
*/
|
||||
private static final MethodHandle DEFAULT_RESULT =
|
||||
ExpressionHandles.dropData(MethodHandles.constant(Double.class, null));
|
||||
dropData(constant(Double.class, null));
|
||||
|
||||
@Override
|
||||
protected MethodHandle defaultResult() {
|
||||
@ -672,14 +685,14 @@ class CompilingVisitor extends ExpressionBaseVisitor<MethodHandle> {
|
||||
return oldResult;
|
||||
}
|
||||
// Add a dummy Double parameter to the end
|
||||
MethodHandle dummyDouble = MethodHandles.dropArguments(
|
||||
MethodHandle dummyDouble = dropArguments(
|
||||
result, 1, Double.class
|
||||
);
|
||||
// Have oldResult turn it from data->Double
|
||||
MethodHandle doubledData = MethodHandles.collectArguments(
|
||||
MethodHandle doubledData = collectArguments(
|
||||
dummyDouble, 1, oldResult
|
||||
);
|
||||
// Deduplicate the `data` parameter
|
||||
return ExpressionHandles.dedupData(doubledData);
|
||||
return dedupData(doubledData);
|
||||
}
|
||||
}
|
||||
|
||||
@ -29,6 +29,8 @@ import java.lang.invoke.MethodHandle;
|
||||
import java.lang.invoke.MethodHandles;
|
||||
import java.lang.invoke.MethodType;
|
||||
|
||||
import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.COMPILED_EXPRESSION_SIG;
|
||||
import static com.sk89q.worldedit.internal.expression.invoke.ExpressionHandles.safeInvoke;
|
||||
import static java.lang.invoke.MethodType.methodType;
|
||||
|
||||
/**
|
||||
@ -43,7 +45,7 @@ public class ExpressionCompiler {
|
||||
private static final MethodHandle HANDLE_TO_CE_CONVERTER;
|
||||
|
||||
static {
|
||||
MethodHandle handleInvoker = MethodHandles.invoker(ExpressionHandles.COMPILED_EXPRESSION_SIG);
|
||||
MethodHandle handleInvoker = MethodHandles.invoker(COMPILED_EXPRESSION_SIG);
|
||||
try {
|
||||
HANDLE_TO_CE_CONVERTER = LambdaMetafactory.metafactory(
|
||||
MethodHandles.lookup(),
|
||||
@ -52,11 +54,11 @@ public class ExpressionCompiler {
|
||||
// Take a handle, to be converted to CompiledExpression
|
||||
HANDLE_TO_CE,
|
||||
// Raw signature for SAM type
|
||||
ExpressionHandles.COMPILED_EXPRESSION_SIG,
|
||||
COMPILED_EXPRESSION_SIG,
|
||||
// Handle to call the captured handle.
|
||||
handleInvoker,
|
||||
// Actual signature at invoke time
|
||||
ExpressionHandles.COMPILED_EXPRESSION_SIG
|
||||
COMPILED_EXPRESSION_SIG
|
||||
).dynamicInvoker().asType(HANDLE_TO_CE);
|
||||
} catch (LambdaConversionException e) {
|
||||
throw new IllegalStateException("Failed to load ExpressionCompiler MetaFactory", e);
|
||||
@ -66,7 +68,7 @@ public class ExpressionCompiler {
|
||||
public CompiledExpression compileExpression(ExpressionParser.AllStatementsContext root,
|
||||
SetMultimap<String, MethodHandle> functions) {
|
||||
MethodHandle invokable = root.accept(new CompilingVisitor(functions));
|
||||
return (CompiledExpression) ExpressionHandles.safeInvoke(
|
||||
return (CompiledExpression) safeInvoke(
|
||||
HANDLE_TO_CE_CONVERTER, h -> h.invoke(invokable)
|
||||
);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user