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package com.oracle.truffle.js.nodes.access;

import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.*;
import com.oracle.truffle.api.instrumentation.Tag;
import com.oracle.truffle.api.object.*;
import com.oracle.truffle.js.nodes.*;
import com.oracle.truffle.js.runtime.*;
import com.oracle.truffle.js.runtime.objects.*;

import java.util.Set;

ES6 12.2.9.3 Runtime Semantics: GetTemplateObject(templateLiteral).
/** * ES6 12.2.9.3 Runtime Semantics: GetTemplateObject(templateLiteral). */
public abstract class GetTemplateObjectNode extends JavaScriptNode { protected final JSContext context; @Child private ArrayLiteralNode rawStrings; @Child private ArrayLiteralNode cookedStrings; private final Object identity; protected GetTemplateObjectNode(JSContext context, ArrayLiteralNode rawStrings, ArrayLiteralNode cookedStrings) { this.context = context; this.rawStrings = rawStrings; this.cookedStrings = cookedStrings; this.identity = this; } protected GetTemplateObjectNode(JSContext context, ArrayLiteralNode rawStrings, ArrayLiteralNode cookedStrings, Object identity) { this.context = context; this.rawStrings = rawStrings; this.cookedStrings = cookedStrings; this.identity = identity; } public static GetTemplateObjectNode create(JSContext context, ArrayLiteralNode rawStrings, ArrayLiteralNode cookedStrings) { return GetTemplateObjectNodeGen.create(context, rawStrings, cookedStrings); } @Specialization(guards = "!context.isMultiContext()", assumptions = "context.getSingleRealmAssumption()") protected DynamicObject doCached(@SuppressWarnings("unused") VirtualFrame frame, @Cached("doUncached(frame)") DynamicObject cachedTemplate) { return cachedTemplate; } @Specialization(replaces = "doCached") protected DynamicObject doUncached(VirtualFrame frame) { DynamicObject cached = Boundaries.mapGet(context.getRealm().getTemplateRegistry(), identity); if (cached != null) { return cached; } cached = buildTemplateObject(frame); Boundaries.mapPut(context.getRealm().getTemplateRegistry(), identity, cached); return cached; } private DynamicObject buildTemplateObject(VirtualFrame frame) { DynamicObject template = cookedStrings.execute(frame); DynamicObject rawObj = rawStrings.execute(frame); JSObject.setIntegrityLevel(rawObj, true); JSObjectUtil.putDataProperty(context, template, "raw", rawObj, JSAttributes.notConfigurableNotEnumerableNotWritable()); JSObject.setIntegrityLevel(template, true); return template; } @Override protected JavaScriptNode copyUninitialized(Set<Class<? extends Tag>> materializedTags) { return GetTemplateObjectNodeGen.create(context, cloneUninitialized(rawStrings, materializedTags), cloneUninitialized(cookedStrings, materializedTags), identity); } }