Added support for typscript string enums.

This commit is contained in:
Sebastian Schneider 2020-07-22 12:28:35 +02:00
parent 7d42942707
commit 8bb9b89243
3 changed files with 76 additions and 17 deletions

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@ -0,0 +1,41 @@
/*
* JSweet - http://www.jsweet.org
* Copyright (C) 2015 CINCHEO SAS <renaud.pawlak@cincheo.fr>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jsweet.lang;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* This annotation is used to annotate enums to generate a TS string enum.
*
* @author Sebastian Schneider
*/
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.TYPE })
@Documented
public @interface StringEnum {
/**
* Defines the actual value of the string type, to be used in case the
* string is not a valid Java identifier.
*/
String value() default "";
}

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@ -1,12 +1,12 @@
/*
/*
* JSweet transpiler - http://www.jsweet.org
* Copyright (C) 2015 CINCHEO SAS <renaud.pawlak@cincheo.fr>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ -32,7 +32,7 @@ import org.apache.log4j.Logger;
/**
* This class contains static constants and utilities.
*
*
* @author Renaud Pawlak
*/
@SuppressWarnings("serial")
@ -73,7 +73,7 @@ public abstract class JSweetConfig {
/**
* Initialize the classpath to include tools.jar.
*
*
* @param jdkHome
* the jdkHome option value (if not set or not found, fall back
* to the JAVA_HOME environment variable)
@ -295,6 +295,10 @@ public abstract class JSweetConfig {
* Fully-qualified name for the JSweet <code>@StringType</code> annotation (see JSweet core API).
*/
public static final String ANNOTATION_STRING_TYPE = JSweetConfig.LANG_PACKAGE + ".StringType";
/**
* Fully-qualified name for the JSweet <code>@StringEnum</code> annotation (see JSweet core API).
*/
public static final String ANNOTATION_STRING_ENUM = JSweetConfig.LANG_PACKAGE + ".StringEnum";
/**
* Fully-qualified name for the JSweet <code>@Root</code> annotation (see JSweet core API).
*/

View File

@ -1,12 +1,12 @@
/*
/*
* JSweet transpiler - http://www.jsweet.org
* Copyright (C) 2015 CINCHEO SAS <renaud.pawlak@cincheo.fr>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ -20,6 +20,7 @@ package org.jsweet.transpiler;
import static org.apache.commons.lang3.StringUtils.isBlank;
import static org.jsweet.JSweetConfig.ANNOTATION_ERASED;
import static org.jsweet.JSweetConfig.ANNOTATION_STRING_ENUM;
import static org.jsweet.JSweetConfig.UTIL_CLASSNAME;
import static org.jsweet.JSweetConfig.ANNOTATION_FUNCTIONAL_INTERFACE;
import static org.jsweet.JSweetConfig.ANNOTATION_OBJECT_TYPE;
@ -162,7 +163,7 @@ import com.sun.tools.javac.util.Name;
/**
* This is a TypeScript printer for translating the Java AST to a TypeScript
* program.
*
*
* @author Renaud Pawlak
*/
public class Java2TypeScriptTranslator extends AbstractTreePrinter {
@ -248,7 +249,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* A state flag indicating the comparison mode to be used by this printer for
* printing comparison operators.
*
*
* @author Renaud Pawlak
*/
public static enum ComparisonMode {
@ -273,7 +274,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Selects a comparison mode for subsequently printed comparison operators.
*
*
* @see #exitComparisonMode()
*/
public void enterComparisonMode(ComparisonMode comparisonMode) {
@ -282,7 +283,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Exits a comparison mode and go back to the previous one.
*
*
* @see #enterComparisonMode(ComparisonMode)
*/
public void exitComparisonMode() {
@ -314,6 +315,8 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
private boolean enumWrapperClassScope = false;
private boolean enumString = false;
private boolean removedSuperclass = false;
private boolean declareClassScope;
@ -497,7 +500,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Enters a new class scope.
*
*
* @see #exitScope()
*/
public void enterScope() {
@ -506,7 +509,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Exits a class scope.
*
*
* @see #enterScope()
*/
public void exitScope() {
@ -515,7 +518,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Creates a new TypeScript translator.
*
*
* @param adapter an object that can tune various aspects of the
* TypeScript code generation
* @param logHandler the handler for logging and error reporting
@ -1501,6 +1504,11 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
} else {
print("enum ");
getScope().enumScope = true;
if (context.hasAnnotationType(classdecl.sym, ANNOTATION_STRING_ENUM)) {
getScope().enumString = true;
getScope().enumWrapperClassScope = false;
getScope().isComplexEnum = false;
}
}
} else {
if (getScope().declareClassScope && !(getIndent() != 0 && isDefinitionScope)) {
@ -1774,6 +1782,12 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
}
int pos = getCurrentPosition();
print(def);
if (getScope().enumScope && JCTree.Tag.VARDEF == def.getTag() && getScope().enumString) {
print(" = \"");
print(def);
print("\"");
}
if (getCurrentPosition() == pos) {
if (!getScope().enumScope) {
removeLastIndent();
@ -2695,7 +2709,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Print async keyword for given method if relevant. Prints nothing if method
* shouldn't be async
*
*
*/
protected void printAsyncKeyword(JCMethodDecl methodDecl) {
if (getScope().declareClassScope || getScope().interfaceScope) {
@ -5812,7 +5826,7 @@ public class Java2TypeScriptTranslator extends AbstractTreePrinter {
/**
* Prints either a string, or the tree if the the string is null.
*
*
* @param exprStr a string to be printed as is if not null
* @param expr a tree to be printed if exprStr is null
*/