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JS backend: refactoring 'is' operator translation.

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This commit is contained in:
develar
2013-08-23 14:47:25 +04:00
committed by Zalim Bashorov
parent df0a218015
commit 8789a0d648
1 changed files with 17 additions and 8 deletions
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js/js.translator/src/org/jetbrains/k2js/translate/expression/PatternTranslator.java
+17 -8
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@@ -18,7 +18,6 @@ package org.jetbrains.k2js.translate.expression;
import com.google.dart.compiler.backend.js.ast.JsExpression;
import com.google.dart.compiler.backend.js.ast.JsInvocation;
import com.google.dart.compiler.backend.js.ast.JsName;
import com.google.dart.compiler.backend.js.ast.JsNameRef;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@@ -26,14 +25,17 @@ import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
import org.jetbrains.jet.lang.psi.JetExpression;
import org.jetbrains.jet.lang.psi.JetIsExpression;
import org.jetbrains.jet.lang.psi.JetTypeReference;
import org.jetbrains.jet.lang.resolve.name.Name;
import org.jetbrains.k2js.translate.context.TranslationContext;
import org.jetbrains.k2js.translate.general.AbstractTranslator;
import org.jetbrains.k2js.translate.general.Translation;
import org.jetbrains.k2js.translate.intrinsic.functions.patterns.NamePredicate;
import org.jetbrains.k2js.translate.utils.BindingUtils;
import org.jetbrains.k2js.translate.utils.TranslationUtils;
import static org.jetbrains.k2js.translate.utils.BindingUtils.getTypeByReference;
import static org.jetbrains.k2js.translate.utils.JsAstUtils.*;
import static org.jetbrains.k2js.translate.utils.JsDescriptorUtils.getNameIfStandardType;
public final class PatternTranslator extends AbstractTranslator {
@@ -81,15 +83,22 @@ public final class PatternTranslator extends AbstractTranslator {
@Nullable
private JsExpression translateAsIntrinsicTypeCheck(@NotNull JsExpression expressionToMatch,
@NotNull JetTypeReference typeReference) {
JsExpression result = null;
JsName className = getClassNameReference(typeReference).getName();
if (className.getIdent().equals("String")) {
result = typeof(expressionToMatch, program().getStringLiteral("string"));
Name typeName = getNameIfStandardType(getTypeByReference(bindingContext(), typeReference));
if (typeName == null) {
return null;
}
if (className.getIdent().equals("Int")) {
result = typeof(expressionToMatch, program().getStringLiteral("number"));
String jsSTypeName;
if (NamePredicate.STRING.apply(typeName)) {
jsSTypeName = "string";
}
return result;
else if (NamePredicate.PRIMITIVE_NUMBERS.apply(typeName)) {
jsSTypeName = "number";
}
else {
return null;
}
return typeof(expressionToMatch, program().getStringLiteral(jsSTypeName));
}
@NotNull