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https://github.com/Eaglercraft-TeaVM-Fork/eagler-teavm.git
synced 2024-12-22 08:14:09 -08:00
Prevent JSBody from inlining if its argumet get used more than once
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parent
0369d100c6
commit
03538071c4
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@ -16,7 +16,9 @@
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package org.teavm.jso.impl;
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package org.teavm.jso.impl;
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import java.io.IOException;
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import java.io.IOException;
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import org.mozilla.javascript.Node;
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import org.mozilla.javascript.ast.AstNode;
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import org.mozilla.javascript.ast.AstNode;
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import org.mozilla.javascript.ast.Block;
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import org.teavm.codegen.SourceWriter;
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import org.teavm.codegen.SourceWriter;
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import org.teavm.javascript.Precedence;
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import org.teavm.javascript.Precedence;
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import org.teavm.javascript.spi.GeneratorContext;
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import org.teavm.javascript.spi.GeneratorContext;
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@ -151,7 +153,14 @@ class JSBodyAstEmitter implements JSBodyEmitter {
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astWriter.declareNameEmitter(parameterNames[i], prec -> writer.append(context.getParameterName(index)));
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astWriter.declareNameEmitter(parameterNames[i], prec -> writer.append(context.getParameterName(index)));
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}
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}
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astWriter.hoist(ast);
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astWriter.hoist(ast);
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astWriter.print(ast);
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if (ast instanceof Block) {
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writer.softNewLine();
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for (Node child = ast.getFirstChild(); child != null; child = child.getNext()) {
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astWriter.print((AstNode) child);
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writer.softNewLine();
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}
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} else {
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astWriter.print(ast);
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writer.softNewLine();
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}
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}
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}
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}
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}
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@ -115,7 +115,7 @@ final class JSBodyInlineUtil {
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Name name = (Name) node;
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Name name = (Name) node;
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if (!name.isLocalName()) {
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if (!name.isLocalName()) {
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String id = name.getIdentifier();
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String id = name.getIdentifier();
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usages.put(id, getUsage(id));
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usages.put(id, getUsage(id) + 1);
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}
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}
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}
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}
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return true;
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return true;
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@ -15,9 +15,10 @@
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*/
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*/
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package org.teavm.jso.test;
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package org.teavm.jso.test;
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import static org.junit.Assert.*;
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import static org.junit.Assert.assertEquals;
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import org.junit.Test;
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import org.junit.Test;
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import org.teavm.jso.JSBody;
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import org.teavm.jso.JSBody;
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import org.teavm.jso.JSObject;
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/**
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/**
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*
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*
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@ -35,4 +36,27 @@ public class ImplementationTest {
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@JSBody(params = { "a", "b" }, script = "return a * b;")
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@JSBody(params = { "a", "b" }, script = "return a * b;")
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static final native int mul(int a, int b);
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static final native int mul(int a, int b);
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@Test
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public void inliningUsageCounterWorksProperly() {
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ForInliningTest instance = ForInliningTest.create();
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wrongInlineCandidate(instance.foo());
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assertEquals(1, instance.counter);
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}
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@JSBody(params = { "a" }, script = "console.log(a, a);")
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private static native void wrongInlineCandidate(JSObject a);
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static class ForInliningTest implements JSObject {
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public int counter = 0;
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public ForInliningTest foo() {
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++counter;
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return this;
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}
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public static ForInliningTest create() {
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return new ForInliningTest();
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}
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}
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}
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}
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