gitignore was dropping all my target generators. ugh.

This commit is contained in:
parrt 2015-06-25 16:00:49 -07:00
parent 8e361ef401
commit b3133abb21
6 changed files with 821 additions and 7 deletions

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@ -24,13 +24,6 @@
<component name="EntryPointsManager">
<entry_points version="2.0" />
</component>
<component name="MavenImportPreferences">
<option name="generalSettings">
<MavenGeneralSettings>
<option name="mavenHome" value="Bundled (Maven 3)" />
</MavenGeneralSettings>
</option>
</component>
<component name="Palette2">
<group name="Swing">
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">

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@ -0,0 +1,177 @@
/*
* [The "BSD license"]
* Copyright (c) 2013 Terence Parr
* Copyright (c) 2013 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.target;
import org.antlr.v4.codegen.CodeGenerator;
import org.antlr.v4.codegen.Target;
import org.antlr.v4.tool.ErrorType;
import org.antlr.v4.tool.ast.GrammarAST;
import org.stringtemplate.v4.NumberRenderer;
import org.stringtemplate.v4.STErrorListener;
import org.stringtemplate.v4.STGroup;
import org.stringtemplate.v4.STGroupFile;
import org.stringtemplate.v4.StringRenderer;
import org.stringtemplate.v4.misc.STMessage;
public class CSharpTarget extends Target {
public CSharpTarget(CodeGenerator gen) {
super(gen, "CSharp");
targetCharValueEscape[0] = "\\0";
targetCharValueEscape[0x0007] = "\\a";
targetCharValueEscape[0x000B] = "\\v";
}
@Override
public String getVersion() {
return "4.5.1"; // crossing fingers that it's close enough.
}
@Override
public String encodeIntAsCharEscape(int v) {
if (v < Character.MIN_VALUE || v > Character.MAX_VALUE) {
throw new IllegalArgumentException(String.format("Cannot encode the specified value: %d", v));
}
if (v >= 0 && v < targetCharValueEscape.length && targetCharValueEscape[v] != null) {
return targetCharValueEscape[v];
}
if (v >= 0x20 && v < 127 && (v < '0' || v > '9') && (v < 'a' || v > 'f') && (v < 'A' || v > 'F')) {
return String.valueOf((char)v);
}
return String.format("\\x%X", v & 0xFFFF);
}
@Override
public String getTargetStringLiteralFromANTLRStringLiteral(
CodeGenerator generator,
String literal, boolean addQuotes)
{
StringBuilder sb = new StringBuilder();
String is = literal;
if ( addQuotes ) sb.append('"');
for (int i = 1; i < is.length() -1; i++) {
if (is.charAt(i) == '\\') {
// Anything escaped is what it is! We assume that
// people know how to escape characters correctly. However
// we catch anything that does not need an escape in Java (which
// is what the default implementation is dealing with and remove
// the escape. The C target does this for instance.
//
switch (is.charAt(i+1)) {
// Pass through any escapes that Java also needs
//
case '"':
case 'n':
case 'r':
case 't':
case 'b':
case 'f':
case '\\':
// Pass the escape through
sb.append('\\');
break;
case 'u': // Assume unnnn
// Pass the escape through as double \\
// so that Java leaves as \u0000 string not char
sb.append('\\');
sb.append('\\');
break;
default:
// Remove the escape by virtue of not adding it here
// Thus \' becomes ' and so on
break;
}
// Go past the \ character
i++;
} else {
// Characters that don't need \ in ANTLR 'strings' but do in Java
if (is.charAt(i) == '"') {
// We need to escape " in Java
sb.append('\\');
}
}
// Add in the next character, which may have been escaped
sb.append(is.charAt(i));
}
if ( addQuotes ) sb.append('"');
return sb.toString();
}
@Override
protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode) {
return false;
}
@Override
protected STGroup loadTemplates() {
// override the superclass behavior to put all C# templates in the same folder
STGroup result = new STGroupFile(CodeGenerator.TEMPLATE_ROOT+"/CSharp/"+getLanguage()+STGroup.GROUP_FILE_EXTENSION);
result.registerRenderer(Integer.class, new NumberRenderer());
result.registerRenderer(String.class, new StringRenderer());
result.setListener(new STErrorListener() {
@Override
public void compileTimeError(STMessage msg) {
reportError(msg);
}
@Override
public void runTimeError(STMessage msg) {
reportError(msg);
}
@Override
public void IOError(STMessage msg) {
reportError(msg);
}
@Override
public void internalError(STMessage msg) {
reportError(msg);
}
private void reportError(STMessage msg) {
getCodeGenerator().tool.errMgr.toolError(ErrorType.STRING_TEMPLATE_WARNING, msg.cause, msg.toString());
}
});
return result;
}
}

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@ -0,0 +1,239 @@
/*
* [The "BSD license"]
* Copyright (c) 2012 Terence Parr
* Copyright (c) 2012 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.target;
import org.antlr.v4.codegen.CodeGenerator;
import org.antlr.v4.codegen.Target;
import org.antlr.v4.tool.ast.GrammarAST;
import org.stringtemplate.v4.STGroup;
import org.stringtemplate.v4.StringRenderer;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
/**
*
* @author Eric Vergnaud
*/
public class JavaScriptTarget extends Target {
/** Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar */
protected static final String[] javaScriptKeywords = {
"break", "case", "class", "catch", "const", "continue", "debugger",
"default", "delete", "do", "else", "export", "extends", "finally", "for",
"function", "if", "import", "in", "instanceof", "let", "new", "return",
"super", "switch", "this", "throw", "try", "typeof", "var", "void",
"while", "with", "yield",
//future reserved
"enum", "await", "implements", "package", "protected", "static",
"interface", "private", "public",
//future reserved in older standards
"abstract", "boolean", "byte", "char", "double", "final", "float",
"goto", "int", "long", "native", "short", "synchronized", "transient",
"volatile",
//literals
"null", "true", "false"
};
/** Avoid grammar symbols in this set to prevent conflicts in gen'd code. */
protected final Set<String> badWords = new HashSet<String>();
public JavaScriptTarget(CodeGenerator gen) {
super(gen, "JavaScript");
}
@Override
public String getVersion() {
return "4.5.1";
}
public Set<String> getBadWords() {
if (badWords.isEmpty()) {
addBadWords();
}
return badWords;
}
protected void addBadWords() {
badWords.addAll(Arrays.asList(javaScriptKeywords));
badWords.add("rule");
badWords.add("parserRule");
}
/**
* {@inheritDoc}
* <p/>
* For Java, this is the translation {@code 'a\n"'} &rarr; {@code "a\n\""}.
* Expect single quotes around the incoming literal. Just flip the quotes
* and replace double quotes with {@code \"}.
* <p/>
* Note that we have decided to allow people to use '\"' without penalty, so
* we must build the target string in a loop as {@link String#replace}
* cannot handle both {@code \"} and {@code "} without a lot of messing
* around.
*/
@Override
public String getTargetStringLiteralFromANTLRStringLiteral(
CodeGenerator generator,
String literal, boolean addQuotes)
{
StringBuilder sb = new StringBuilder();
String is = literal;
if ( addQuotes ) sb.append('"');
for (int i = 1; i < is.length() -1; i++) {
if (is.charAt(i) == '\\') {
// Anything escaped is what it is! We assume that
// people know how to escape characters correctly. However
// we catch anything that does not need an escape in Java (which
// is what the default implementation is dealing with and remove
// the escape. The C target does this for instance.
//
switch (is.charAt(i+1)) {
// Pass through any escapes that Java also needs
//
case '"':
case 'n':
case 'r':
case 't':
case 'b':
case 'f':
case '\\':
// Pass the escape through
sb.append('\\');
break;
case 'u': // Assume unnnn
// Pass the escape through as double \\
// so that Java leaves as \u0000 string not char
sb.append('\\');
sb.append('\\');
break;
default:
// Remove the escape by virtue of not adding it here
// Thus \' becomes ' and so on
break;
}
// Go past the \ character
i++;
} else {
// Characters that don't need \ in ANTLR 'strings' but do in Java
if (is.charAt(i) == '"') {
// We need to escape " in Java
sb.append('\\');
}
}
// Add in the next character, which may have been escaped
sb.append(is.charAt(i));
}
if ( addQuotes ) sb.append('"');
return sb.toString();
}
@Override
public String encodeIntAsCharEscape(int v) {
if (v < Character.MIN_VALUE || v > Character.MAX_VALUE) {
throw new IllegalArgumentException(String.format("Cannot encode the specified value: %d", v));
}
if (v >= 0 && v < targetCharValueEscape.length && targetCharValueEscape[v] != null) {
return targetCharValueEscape[v];
}
if (v >= 0x20 && v < 127 && (!Character.isDigit(v) || v == '8' || v == '9')) {
return String.valueOf((char)v);
}
if ( v>=0 && v<=127 ) {
String oct = Integer.toOctalString(v);
return "\\"+ oct;
}
String hex = Integer.toHexString(v|0x10000).substring(1,5);
return "\\u"+hex;
}
@Override
public int getSerializedATNSegmentLimit() {
return 2 ^ 31;
}
@Override
public int getInlineTestSetWordSize() {
return 32;
}
@Override
protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode) {
return getBadWords().contains(idNode.getText());
}
@Override
protected STGroup loadTemplates() {
STGroup result = super.loadTemplates();
result.registerRenderer(String.class, new JavaStringRenderer(), true);
return result;
}
protected static class JavaStringRenderer extends StringRenderer {
@Override
public String toString(Object o, String formatString, Locale locale) {
if ("java-escape".equals(formatString)) {
// 5C is the hex code for the \ itself
return ((String)o).replace("\\u", "\\u005Cu");
}
return super.toString(o, formatString, locale);
}
}
public boolean wantsBaseListener() {
return false;
}
public boolean wantsBaseVisitor() {
return false;
}
public boolean supportsOverloadedMethods() {
return false;
}
}

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@ -0,0 +1,126 @@
/*
* [The "BSD license"]
* Copyright (c) 2012 Terence Parr
* Copyright (c) 2012 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.target;
import org.antlr.v4.Tool;
import org.antlr.v4.codegen.CodeGenerator;
import org.antlr.v4.codegen.Target;
import org.antlr.v4.tool.ast.GrammarAST;
import org.stringtemplate.v4.STGroup;
import org.stringtemplate.v4.StringRenderer;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
public class JavaTarget extends Target {
/**
* The Java target can cache the code generation templates.
*/
private static final ThreadLocal<STGroup> targetTemplates = new ThreadLocal<STGroup>();
protected static final String[] javaKeywords = {
"abstract", "assert", "boolean", "break", "byte", "case", "catch",
"char", "class", "const", "continue", "default", "do", "double", "else",
"enum", "extends", "false", "final", "finally", "float", "for", "goto",
"if", "implements", "import", "instanceof", "int", "interface",
"long", "native", "new", "null", "package", "private", "protected",
"public", "return", "short", "static", "strictfp", "super", "switch",
"synchronized", "this", "throw", "throws", "transient", "true", "try",
"void", "volatile", "while"
};
/** Avoid grammar symbols in this set to prevent conflicts in gen'd code. */
protected final Set<String> badWords = new HashSet<String>();
public JavaTarget(CodeGenerator gen) {
super(gen, "Java");
}
@Override
public String getVersion() {
return Tool.VERSION; // Java and tool versions move in lock step
}
public Set<String> getBadWords() {
if (badWords.isEmpty()) {
addBadWords();
}
return badWords;
}
protected void addBadWords() {
badWords.addAll(Arrays.asList(javaKeywords));
badWords.add("rule");
badWords.add("parserRule");
}
@Override
public int getSerializedATNSegmentLimit() {
// 65535 is the class file format byte limit for a UTF-8 encoded string literal
// 3 is the maximum number of bytes it takes to encode a value in the range 0-0xFFFF
return 65535 / 3;
}
@Override
protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode) {
return getBadWords().contains(idNode.getText());
}
@Override
protected STGroup loadTemplates() {
STGroup result = targetTemplates.get();
if (result == null) {
result = super.loadTemplates();
result.registerRenderer(String.class, new JavaStringRenderer(), true);
targetTemplates.set(result);
}
return result;
}
protected static class JavaStringRenderer extends StringRenderer {
@Override
public String toString(Object o, String formatString, Locale locale) {
if ("java-escape".equals(formatString)) {
// 5C is the hex code for the \ itself
return ((String)o).replace("\\u", "\\u005Cu");
}
return super.toString(o, formatString, locale);
}
}
}

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@ -0,0 +1,136 @@
/*
* [The "BSD license"]
* Copyright (c) 2012 Terence Parr
* Copyright (c) 2012 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.target;
import org.antlr.v4.codegen.CodeGenerator;
import org.antlr.v4.codegen.Target;
import org.antlr.v4.tool.ast.GrammarAST;
import org.stringtemplate.v4.STGroup;
import org.stringtemplate.v4.StringRenderer;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
/**
*
* @author Eric Vergnaud
*/
public class Python2Target extends Target {
protected static final String[] python2Keywords = {
"abs", "all", "any", "apply", "as",
"bin", "bool", "buffer", "bytearray",
"callable", "chr", "classmethod", "coerce", "compile", "complex",
"delattr", "dict", "dir", "divmod",
"enumerate", "eval", "execfile",
"file", "filter", "float", "format", "frozenset",
"getattr", "globals",
"hasattr", "hash", "help", "hex",
"id", "input", "int", "intern", "isinstance", "issubclass", "iter",
"len", "list", "locals",
"map", "max", "min", "next",
"memoryview",
"object", "oct", "open", "ord",
"pow", "print", "property",
"range", "raw_input", "reduce", "reload", "repr", "reversed", "round",
"set", "setattr", "slice", "sorted", "staticmethod", "str", "sum", "super",
"tuple", "type",
"unichr", "unicode",
"vars",
"with",
"xrange",
"zip",
"__import__",
"True", "False", "None"
};
/** Avoid grammar symbols in this set to prevent conflicts in gen'd code. */
protected final Set<String> badWords = new HashSet<String>();
public Python2Target(CodeGenerator gen) {
super(gen, "Python2");
}
@Override
protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode) {
return getBadWords().contains(idNode.getText());
}
@Override
protected STGroup loadTemplates() {
STGroup result = super.loadTemplates();
result.registerRenderer(String.class, new PythonStringRenderer(), true);
return result;
}
protected static class PythonStringRenderer extends StringRenderer {
@Override
public String toString(Object o, String formatString, Locale locale) {
return super.toString(o, formatString, locale);
}
}
@Override
public boolean wantsBaseListener() {
return false;
}
@Override
public boolean wantsBaseVisitor() {
return false;
}
@Override
public boolean supportsOverloadedMethods() {
return false;
}
@Override
public String getVersion() {
return "4.5.2";
}
public Set<String> getBadWords() {
if (badWords.isEmpty()) {
addBadWords();
}
return badWords;
}
protected void addBadWords() {
badWords.addAll(Arrays.asList(python2Keywords));
badWords.add("rule");
badWords.add("parserRule");
}
}

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@ -0,0 +1,143 @@
/*
* [The "BSD license"]
* Copyright (c) 2012 Terence Parr
* Copyright (c) 2012 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.codegen.target;
import org.antlr.v4.codegen.CodeGenerator;
import org.antlr.v4.codegen.Target;
import org.antlr.v4.tool.ast.GrammarAST;
import org.stringtemplate.v4.STGroup;
import org.stringtemplate.v4.StringRenderer;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
/**
*
* @author Eric Vergnaud
*/
public class Python3Target extends Target {
protected static final String[] python3Keywords = {
"abs", "all", "any", "apply", "as",
"bin", "bool", "buffer", "bytearray",
"callable", "chr", "classmethod", "coerce", "compile", "complex",
"delattr", "dict", "dir", "divmod",
"enumerate", "eval", "execfile",
"file", "filter", "float", "format", "frozenset",
"getattr", "globals",
"hasattr", "hash", "help", "hex",
"id", "input", "int", "intern", "isinstance", "issubclass", "iter",
"len", "list", "locals",
"map", "max", "min", "next",
"memoryview",
"object", "oct", "open", "ord",
"pow", "print", "property",
"range", "raw_input", "reduce", "reload", "repr", "reversed", "round",
"set", "setattr", "slice", "sorted", "staticmethod", "str", "sum", "super",
"tuple", "type",
"unichr", "unicode",
"vars",
"with",
"zip",
"__import__",
"True", "False", "None"
};
public Python3Target(CodeGenerator gen) {
super(gen, "Python3");
}
@Override
public int getSerializedATNSegmentLimit() {
// set to something stupid to avoid segmentation
return 2 ^ 31;
}
@Override
protected boolean visibleGrammarSymbolCausesIssueInGeneratedCode(GrammarAST idNode) {
return getBadWords().contains(idNode.getText());
}
@Override
protected STGroup loadTemplates() {
STGroup result = super.loadTemplates();
result.registerRenderer(String.class, new PythonStringRenderer(), true);
return result;
}
protected static class PythonStringRenderer extends StringRenderer {
@Override
public String toString(Object o, String formatString, Locale locale) {
return super.toString(o, formatString, locale);
}
}
@Override
public boolean wantsBaseListener() {
return false;
}
@Override
public boolean wantsBaseVisitor() {
return false;
}
@Override
public boolean supportsOverloadedMethods() {
return false;
}
@Override
public String getVersion() {
return "4.5.2";
}
/** Avoid grammar symbols in this set to prevent conflicts in gen'd code. */
protected final Set<String> badWords = new HashSet<String>();
public Set<String> getBadWords() {
if (badWords.isEmpty()) {
addBadWords();
}
return badWords;
}
protected void addBadWords() {
badWords.addAll(Arrays.asList(python3Keywords));
badWords.add("rule");
badWords.add("parserRule");
}
}