Merge branch 'master' into master

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Sönke Schau 2018-11-11 13:21:57 +01:00 committed by GitHub
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82 changed files with 2709 additions and 1334 deletions

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@ -151,32 +151,32 @@ matrix:
- os: linux
jdk: openjdk7
env: TARGET=csharp
stage: extended-test
stage: main-test
- os: linux
jdk: oraclejdk8
dist: trusty
env:
- TARGET=dotnet
- GROUP=LEXER
stage: main-test
stage: extended-test
- os: linux
jdk: openjdk8
dist: trusty
env:
- TARGET=dotnet
- GROUP=PARSER
stage: main-test
stage: extended-test
- os: linux
jdk: oraclejdk8
dist: trusty
env:
- TARGET=dotnet
- GROUP=RECURSION
stage: main-test
stage: extended-test
- os: linux
jdk: openjdk7
env: TARGET=python2
stage: extended-test
stage: main-test
- os: linux
jdk: openjdk7
env: TARGET=python3
@ -185,7 +185,7 @@ matrix:
sources:
- deadsnakes # source required so it finds the package definition below
packages:
- python3.5
- python3.6
stage: main-test
- os: linux
dist: trusty

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@ -1,6 +1,6 @@
# ANTLR v4
[![Build Travis-CI Status](https://travis-ci.org/antlr/antlr4.png?branch=master)](https://travis-ci.org/antlr/antlr4) [![Build AppVeyor Status](https://ci.appveyor.com/api/projects/status/5acpbx1pg7bhgh8v/branch/master?svg=true)](https://ci.appveyor.com/project/parrt/antlr4) [![Java 7+](https://img.shields.io/badge/java-7+-4c7e9f.svg)](http://java.oracle.com) [![License](https://img.shields.io/badge/license-BSD-blue.svg)](https://raw.githubusercontent.com/antlr/antlr4/master/LICENSE.txt)
[![Build Travis-CI Status](https://travis-ci.org/antlr/antlr4.svg?branch=master)](https://travis-ci.org/antlr/antlr4) [![Build AppVeyor Status](https://ci.appveyor.com/api/projects/status/5acpbx1pg7bhgh8v/branch/master?svg=true)](https://ci.appveyor.com/project/parrt/antlr4) [![Java 7+](https://img.shields.io/badge/java-7+-4c7e9f.svg)](http://java.oracle.com) [![License](https://img.shields.io/badge/license-BSD-blue.svg)](https://raw.githubusercontent.com/antlr/antlr4/master/LICENSE.txt)
**ANTLR** (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files. It's widely used to build languages, tools, and frameworks. From a grammar, ANTLR generates a parser that can build parse trees and also generates a listener interface (or visitor) that makes it easy to respond to the recognition of phrases of interest.

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@ -178,5 +178,27 @@ YYYY/MM/DD, github id, Full name, email
2017/12/01, DavidMoraisFerreira, David Morais Ferreira, david.moraisferreira@gmail.com
2017/12/01, SebastianLng, Sebastian Lang, sebastian.lang@outlook.com
2017/12/03, oranoran, Oran Epelbaum, oran / epelbaum me
2017/12/12, janlinde, Jan Lindemann, jan@janware.com
2017/12/13, enessoylu, Enes Soylu, enessoylutr@gmail.com
2017/12/20, kbsletten, Kyle Sletten, kbsletten@gmail.com
2017/12/27, jkmar, Jakub Marciniszyn, marciniszyn.jk@gmail.com
2018/01/06, kasbah, Kaspar Emanuel, kaspar@monostable.co.uk
2018/01/15, xgcssch, Sönke Schau, xgcssch@users.noreply.github.com
2018/02/08, razfriman, Raz Friman, raz@razfriman.com
2018/02/11, io7m, Mark Raynsford, code@io7m.com
2018/15/05, johnvanderholt, jan dillingh johnvanderholte@gmail.com
2018/06/16, EternalPhane, Zongyuan Zuo, eternalphane@gmail.com
2018/06/27, wu-sheng, Wu Sheng, wu.sheng@foxmail.com
2018/02/25, chaseoxide, Marcus Ong, taccs97[at]gmail[dot]com
2018/05/15, johnvanderholt, jan dillingh johnvanderholte@gmail.com
2018/06/16, EternalPhane, Zongyuan Zuo, eternalphane@gmail.com
2018/05/15, johnvanderholt, jan dillingh johnvanderholte@gmail.com
2018/05/17, sinopsysHK, Eric Bardes, sinofwd@gmail.com
2018/05/23, srvance, Stephen Vance, steve@vance.com
2018/06/14, alecont, Alessandro Contenti, alecontenti@hotmail.com
2018/06/16, EternalPhane, Zongyuan Zuo, eternalphane@gmail.com
2018/07/03, jgoppert, James Goppert, james.goppert@gmail.com
2018/07/27, Maksim Novikov, mnovikov.work@gmail.com
2018/07/31 Lucas Henrqiue, lucashenrique580@gmail.com
2018/08/03, ENDOH takanao, djmchl@gmail.com
2018/10/29, chrisaycock, Christopher Aycock, chris[at]chrisaycock[dot]com

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@ -42,9 +42,9 @@ In order to perform the tests on all target languages, you need to have the foll
* `mono` (e.g., `brew install mono`) on non-Windows boxes (on Windows it uses the Microsoft .net stack). Also must [`xbuild` the runtime](https://github.com/antlr/antlr4/blob/master/doc/releasing-antlr.md) before tests will run; see below
* `nodejs`
* Python 2.7
* Python 3.5
* Python 3.6
* Go
* Swift 3 (via XCode 8.x) tested currently only osx
* Swift 4 (via XCode 10.x) tested currently only osx
* clang (for C++ target)
*
To **install into local repository** `~/.m2/repository/org/antlr`, do this:

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@ -28,16 +28,7 @@ Checking out files: 100% (1427/1427), done.
# Compile
```bash
$ cd /tmp
$ git clone git@github.com:antlr/antlr4.git
Cloning into 'antlr4'...
remote: Counting objects: 59858, done.
remote: Compressing objects: 100% (57/57), done.
remote: Total 59858 (delta 28), reused 9 (delta 9), pack-reused 59786
Receiving objects: 100% (59858/59858), 31.10 MiB | 819.00 KiB/s, done.
Resolving deltas: 100% (31898/31898), done.
Checking connectivity... done.
$ cd antlr4
$ cd /tmp/antlr4
$ export MAVEN_OPTS="-Xmx1G" # don't forget this on linux
$ mvn clean # must be separate, not part of install/compile
$ mvn -DskipTests install

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@ -32,6 +32,7 @@ Now a fully functioning code might look like the following for start rule `Start
```
using Antlr4.Runtime;
using Antlr4.Runtime.Tree;
public void MyParseMethod() {
String input = "your text to parse here";
@ -39,7 +40,7 @@ public void MyParseMethod() {
ITokenSource lexer = new MyGrammarLexer(stream);
ITokenStream tokens = new CommonTokenStream(lexer);
MyGrammarParser parser = new MyGrammarParser(tokens);
parser.buildParseTrees = true;
parser.BuildParseTree = true;
IParseTree tree = parser.StartRule();
}
```

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@ -31,7 +31,7 @@ It's also a good idea to put this in your `.bash_profile` or whatever your start
3. Create aliases for the ANTLR Tool, and `TestRig`.
```
$ alias antlr4='java -Xmx500M -cp "/usr/local/lib/antlr-4.7.1-complete.jar:$CLASSPATH" org.antlr.v4.Tool'
$ alias grun='java org.antlr.v4.gui.TestRig'
$ alias grun='java -Xmx500M -cp "/usr/local/lib/antlr-4.7.1-complete.jar:$CLASSPATH" org.antlr.v4.gui.TestRig'
```
### WINDOWS

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@ -16,7 +16,7 @@ Also, I have prepared a [video](https://youtu.be/eW4WFgRtFeY) that will help you
### Eclipse
Edgar Espina has created an [eclipse plugin for ANTLR v4](https://youtu.be/eW4WFgRtFeY). Features: Advanced Syntax Highlighting, Automatic Code Generation (on save), Manual Code Generation (through External Tools menu), Code Formatter (Ctrl+Shift+F), Syntax Diagrams, Advanced Rule Navigation between files (F3), Quick fixes.
Edgar Espina has created an [eclipse plugin for ANTLR v4](https://marketplace.eclipse.org/content/antlr-ide). Features: Advanced Syntax Highlighting, Automatic Code Generation (on save), Manual Code Generation (through External Tools menu), Code Formatter (Ctrl+Shift+F), Syntax Diagrams, Advanced Rule Navigation between files (F3), Quick fixes.
### NetBeans

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@ -62,7 +62,7 @@ The steps to create your parsing code are the following:
You are now ready to bundle your parsing code as follows:
- following webpack specs, create a webpack.config file
- in the webpack.config file, exclude node.js only modules using: node: { module: "empty", net: "empty", fs: "empty" }
- from the cmd line, nag-vigate to the directory containing webpack.config and type: webpack
- from the cmd line, navigate to the directory containing webpack.config and type: webpack
This will produce a single js file containing all your parsing code. Easy to include in your web pages!
@ -95,11 +95,16 @@ Let's suppose that your grammar is named, as above, "MyGrammar". Let's suppose t
Now a fully functioning script might look like the following:
```javascript
var antlr4 = require('antlr4');
var MyGrammarLexer = require('./MyGrammarLexer').MyGrammarLexer;
var MyGrammarParser = require('./MyGrammarParser').MyGrammarParser;
var MyGrammarListener = require('./MyGrammarListener').MyGrammarListener;
var input = "your text to parse here"
var chars = new antlr4.InputStream(input);
var lexer = new MyGrammarLexer.MyGrammarLexer(chars);
var lexer = new MyGrammarLexer(chars);
var tokens = new antlr4.CommonTokenStream(lexer);
var parser = new MyGrammarParser.MyGrammarParser(tokens);
var parser = new MyGrammarParser(tokens);
parser.buildParseTrees = true;
var tree = parser.MyStartRule();
```
@ -130,12 +135,12 @@ Let's suppose your MyGrammar grammar comprises 2 rules: "key" and "value". The a
In order to provide custom behavior, you might want to create the following class:
```javascript
KeyPrinter = function() {
var KeyPrinter = function() {
MyGrammarListener.call(this); // inherit default listener
return this;
};
// inherit default listener
// continue inheriting default listener
KeyPrinter.prototype = Object.create(MyGrammarListener.prototype);
KeyPrinter.prototype.constructor = KeyPrinter;
@ -149,7 +154,7 @@ In order to execute this listener, you would simply add the following lines to t
```javascript
...
tree = parser.StartRule() - only repeated here for reference
tree = parser.StartRule() // only repeated here for reference
var printer = new KeyPrinter();
antlr4.tree.ParseTreeWalker.DEFAULT.walk(printer, tree);
```

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@ -150,13 +150,13 @@ Uploaded: https://oss.sonatype.org/content/repositories/snapshots/org/antlr/antl
The maven deploy lifecycle phased deploys the artifacts and the poms for the ANTLR project to the [sonatype remote staging server](https://oss.sonatype.org/content/repositories/snapshots/).
```bash
mvn deploy -DskipTests
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`; mvn deploy -DskipTests
```
With JDK 1.7 (not 6 or 8), do this:
```bash
mvn release:prepare -Darguments="-DskipTests"
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`; mvn release:prepare -Darguments="-DskipTests"
```
Hm...per https://github.com/keybase/keybase-issues/issues/1712 we need this to make gpg work:
@ -172,6 +172,13 @@ alias java='/Library/Java/JavaVirtualMachines/jdk1.7.0_21.jdk/Contents/Home/bin/
alias javac='/Library/Java/JavaVirtualMachines/jdk1.7.0_21.jdk/Contents/Home/bin/javac'
alias javadoc='/Library/Java/JavaVirtualMachines/jdk1.7.0_21.jdk/Contents/Home/bin/javadoc'
alias jar='/Library/Java/JavaVirtualMachines/jdk1.7.0_21.jdk/Contents/Home/bin/jar'
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`
```
But I think just this on front of mvn works:
```
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`; mvn ...
```
You should see 0x33 in generated .class files after 0xCAFEBABE; see [Java SE 7 = 51 (0x33 hex)](https://en.wikipedia.org/wiki/Java_class_file):

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@ -26,7 +26,7 @@
<dependency>
<groupId>org.antlr</groupId>
<artifactId>ST4</artifactId>
<version>4.0.8</version>
<version>4.1-SNAPSHOT</version>
<scope>test</scope>
</dependency>
<dependency>
@ -68,7 +68,7 @@
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>8.1.16.v20140903</version>
<version>[9.3.24.v20180605,)</version>
<scope>test</scope>
</dependency>
<dependency>

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@ -854,4 +854,39 @@ public class ParserExecDescriptors {
@CommentHasStringValue
public String grammar;
}
/**
* This is a regression test for antlr/antlr4#2301.
*/
public static class OrderingPredicates extends BaseParserTestDescriptor {
public String input = "POINT AT X";
public String output = null;
public String errors = null;
public String startRule = "expr";
public String grammarName = "Issue2301";
/**
grammar Issue2301;
SPACES: [ \t\r\n]+ -> skip;
AT: 'AT';
X : 'X';
Y : 'Y';
ID: [A-Z]+;
constant
: 'DUMMY'
;
expr
: ID constant?
| expr AT X
| expr AT Y
;
*/
@CommentHasStringValue
public String grammar;
}
}

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@ -514,7 +514,10 @@ public abstract class BasePythonTest implements RuntimeTestSupport {
}
private String locateTool(String tool) {
String[] roots = { "/opt/local/bin", "/usr/bin/", "/usr/local/bin/" };
String[] roots = {
"/opt/local/bin", "/usr/bin/", "/usr/local/bin/",
"/Users/"+System.getProperty("user.name")+"/anaconda3/bin/"
};
for(String root : roots) {
if(new File(root + tool).exists()) {
return root+tool;

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@ -19,8 +19,8 @@ public class BasePython3Test extends BasePythonTest {
@Override
protected String getPythonExecutable() {
return "python3.5";
} // force 3.5
return "python3.6";
} // force 3.6
@Override
protected void writeLexerTestFile(String lexerName, boolean showDFA) {

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@ -51,7 +51,13 @@ This is just a quick start. The tool has many useful options to control generati
The Antlr 4 standard runtime for C# is now available from NuGet.
We trust that you know how to do add NuGet references to your project :-).
The package id is Antlr4.Runtime.Standard. We do not support other packages.
The package id is [Antlr4.Runtime.Standard](https://www.nuget.org/packages/Antlr4.Runtime.Standard/). We do not support other packages.
Use the GUI or the following command in the Package Manager Console:
```
Install-Package Antlr4.Runtime.Standard
```
### Step 6: You're done!

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@ -20,6 +20,8 @@ if(NOT WITH_DEMO)
endif(NOT WITH_DEMO)
option(WITH_LIBCXX "Building with clang++ and libc++(in Linux). To enable with: -DWITH_LIBCXX=On" On)
option(WITH_STATIC_CRT "(Visual C++) Enable to statically link CRT, which avoids requiring users to install the redistribution package.
To disable with: -DWITH_STATIC_CRT=Off" On)
project(LIBANTLR4)
@ -103,7 +105,7 @@ if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCH
message(FATAL_ERROR "${PROJECT_NAME} requires g++ 5.0 or greater.")
endif ()
elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" AND APPLE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++")
elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" AND ( CMAKE_SYSTEM_NAME MATCHES "Linux" OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD") )
execute_process(
COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE CLANG_VERSION)
@ -190,3 +192,6 @@ endif()
install(FILES README.md VERSION
DESTINATION "share/doc/libantlr4")
set(CPACK_PACKAGE_CONTACT "antlr-discussion@googlegroups.com")
set(CPACK_PACKAGE_VERSION ${ANTLR_VERSION})
include(CPack)

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@ -1,223 +1,148 @@
# -*- mode:cmake -*-
#
# This Cmake file is for those using a superbuild Cmake Pattern, it
# will download the tools and build locally
#
# use 2the antlr4cpp_process_grammar to support multiple grammars in the
# same project
#
# - Getting quicky started with Antlr4cpp
#
# Here is how you can use this external project to create the antlr4cpp
# demo to start your project off.
#
# create your project source folder somewhere. e.g. ~/srcfolder/
# + make a subfolder cmake
# + Copy this file to srcfolder/cmake
# + cut below and use it to create srcfolder/CMakeLists.txt,
# + from https://github.com/DanMcLaughlin/antlr4/tree/master/runtime/Cpp/demo Copy main.cpp, TLexer.g4 and TParser.g4 to ./srcfolder/
#
# next make a build folder e.g. ~/buildfolder/
# from the buildfolder, run cmake ~/srcfolder; make
#
###############################################################
# # minimum required CMAKE version
# CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12.2 FATAL_ERROR)
#
# LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake )
#
# # compiler must be 11 or 14
# SET (CMAKE_CXX_STANDARD 11)
#
# # set variable pointing to the antlr tool that supports C++
# set(ANTLR4CPP_JAR_LOCATION /home/user/antlr4-4.5.4-SNAPSHOT.jar)
# # add external build for antlrcpp
# include( ExternalAntlr4Cpp )
# # add antrl4cpp artifacts to project environment
# include_directories( ${ANTLR4CPP_INCLUDE_DIRS} )
# link_directories( ${ANTLR4CPP_LIBS} )
# message(STATUS "Found antlr4cpp libs: ${ANTLR4CPP_LIBS} and includes: ${ANTLR4CPP_INCLUDE_DIRS} ")
#
# # Call macro to add lexer and grammar to your build dependencies.
# antlr4cpp_process_grammar(demo antlrcpptest
# ${CMAKE_CURRENT_SOURCE_DIR}/TLexer.g4
# ${CMAKE_CURRENT_SOURCE_DIR}/TParser.g4)
# # include generated files in project environment
# include_directories(${antlr4cpp_include_dirs_antlrcpptest})
#
# # add generated grammar to demo binary target
# add_executable(demo main.cpp ${antlr4cpp_src_files_antlrcpptest})
# add_dependencies(demo antlr4cpp antlr4cpp_generation_antlrcpptest)
# target_link_libraries(demo antlr4-runtime)
#
###############################################################
cmake_minimum_required(VERSION 3.7)
CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12.2)
PROJECT(antlr4cpp_fetcher CXX)
INCLUDE(ExternalProject)
FIND_PACKAGE(Git REQUIRED)
include(ExternalProject)
# only JRE required
FIND_PACKAGE(Java COMPONENTS Runtime REQUIRED)
############ Download and Generate runtime #################
set(ANTLR4CPP_EXTERNAL_ROOT ${CMAKE_BINARY_DIR}/externals/antlr4cpp)
# external repository
# GIT_REPOSITORY https://github.com/antlr/antlr4.git
set(ANTLR4CPP_EXTERNAL_REPO "https://github.com/antlr/antlr4.git")
set(ANTLR4CPP_EXTERNAL_TAG "4.7.1")
if(NOT EXISTS "${ANTLR4CPP_JAR_LOCATION}")
message(FATAL_ERROR "Unable to find antlr tool. ANTLR4CPP_JAR_LOCATION:${ANTLR4CPP_JAR_LOCATION}")
set(ANTLR4_ROOT ${CMAKE_CURRENT_BINARY_DIR}/antlr4_runtime/src/antlr4_runtime)
set(ANTLR4_INCLUDE_DIRS ${ANTLR4_ROOT}/runtime/Cpp/runtime/src)
set(ANTLR4_GIT_REPOSITORY https://github.com/antlr/antlr4.git)
if(NOT DEFINED ANTLR4_TAG)
# Set to branch name to keep library updated at the cost of needing to rebuild after 'clean'
# Set to commit hash to keep the build stable and does not need to rebuild after 'clean'
set(ANTLR4_TAG master)
endif()
# default path for source files
if (NOT ANTLR4CPP_GENERATED_SRC_DIR)
set(ANTLR4CPP_GENERATED_SRC_DIR ${CMAKE_BINARY_DIR}/antlr4cpp_generated_src)
endif()
# !TODO! This should probably check with Cmake Find first?
# set(ANTLR4CPP_JAR_LOCATION ${ANTLR4CPP_EXTERNAL_ROOT}/${ANTLR4CPP_JAR_NAME})
#
# !TODO! Ensure Antlr tool available - copy from internet
#
# # !TODO! this shold be calculated based on the tags
# if (NOT ANTLR4CPP_JAR_NAME)
# # default location to find antlr Java binary
# set(ANTLR4CPP_JAR_NAME antlr4-4.5.4-SNAPSHOT.jar)
# endif()
#
# if(NOT EXISTS "${ANTLR4CPP_JAR_LOCATION}")
# # download Java tool if not installed
# ExternalProject_ADD(
# #--External-project-name------
# antlrtool
# #--Core-directories-----------
# PREFIX ${ANTLR4CPP_EXTERNAL_ROOT}
# #--Download step--------------
# DOWNLOAD_DIR ${ANTLR4CPP_EXTERNAL_ROOT}
# DOWNLOAD_COMMAND ""
# # URL http://www.antlr.org/download/${ANTLR4CPP_JAR_NAME}
# # antlr4-4.5.4-SNAPSHOT.jar
# # GIT_TAG v4.5.4
# TIMEOUT 10
# LOG_DOWNLOAD ON
# #--Update step----------
# # UPDATE_COMMAND ${GIT_EXECUTABLE} pull
# #--Patch step----------
# # PATCH_COMMAND sh -c "cp <SOURCE_DIR>/scripts/CMakeLists.txt <SOURCE_DIR>"
# #--Configure step-------------
# CMAKE_ARGS ""
# CONFIGURE_COMMAND ""
# LOG_CONFIGURE ON
# #--Build step-----------------
# BUILD_COMMAND ""
# LOG_BUILD ON
# #--Install step---------------
# INSTALL_COMMAND ""
# )
# # Verify Antlr Available
# if(NOT EXISTS "${ANTLR4CPP_JAR_LOCATION}")
# message(FATAL_ERROR "Unable to find ANTLR4CPP_JAR_LOCATION:${ANTLR4CPP_JAR_LOCATION} -> ${ANTLR4CPP_JAR_NAME} not in ${ANTLR4CPP_DIR} ")
# endif()
# endif()
# download runtime environment
ExternalProject_ADD(
#--External-project-name------
antlr4cpp
#--Depend-on-antrl-tool-----------
# DEPENDS antlrtool
#--Core-directories-----------
PREFIX ${ANTLR4CPP_EXTERNAL_ROOT}
#--Download step--------------
GIT_REPOSITORY ${ANTLR4CPP_EXTERNAL_REPO}
# GIT_TAG ${ANTLR4CPP_EXTERNAL_TAG}
TIMEOUT 10
LOG_DOWNLOAD ON
#--Update step----------
UPDATE_COMMAND ${GIT_EXECUTABLE} pull
#--Patch step----------
# PATCH_COMMAND sh -c "cp <SOURCE_DIR>/scripts/CMakeLists.txt <SOURCE_DIR>"
#--Configure step-------------
CONFIGURE_COMMAND ${CMAKE_COMMAND} -DCMAKE_BUILD_TYPE=Release -DANTLR4CPP_JAR_LOCATION=${ANTLR4CPP_JAR_LOCATION} -DBUILD_SHARED_LIBS=ON -BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR> -DCMAKE_SOURCE_DIR:PATH=<SOURCE_DIR>/runtime/Cpp <SOURCE_DIR>/runtime/Cpp
LOG_CONFIGURE ON
#--Build step-----------------
# BUILD_COMMAND ${CMAKE_MAKE_PROGRAM}
LOG_BUILD ON
#--Install step---------------
# INSTALL_COMMAND ""
# INSTALL_DIR ${CMAKE_BINARY_DIR}/
#--Install step---------------
# INSTALL_COMMAND ""
)
ExternalProject_Get_Property(antlr4cpp INSTALL_DIR)
list(APPEND ANTLR4CPP_INCLUDE_DIRS ${INSTALL_DIR}/include/antlr4-runtime)
foreach(src_path misc atn dfa tree support)
list(APPEND ANTLR4CPP_INCLUDE_DIRS ${INSTALL_DIR}/include/antlr4-runtime/${src_path})
endforeach(src_path)
set(ANTLR4CPP_LIBS "${INSTALL_DIR}/lib")
# antlr4_shared ${INSTALL_DIR}/lib/libantlr4-runtime.so
# antlr4_static ${INSTALL_DIR}/lib/libantlr4-runtime.a
############ Generate runtime #################
# macro to add dependencies to target
#
# Param 1 project name
# Param 1 namespace (postfix for dependencies)
# Param 2 Lexer file (full path)
# Param 3 Parser File (full path)
#
# output
#
# antlr4cpp_src_files_{namespace} - src files for add_executable
# antlr4cpp_include_dirs_{namespace} - include dir for generated headers
# antlr4cpp_generation_{namespace} - for add_dependencies tracking
macro(antlr4cpp_process_grammar
antlr4cpp_project
antlr4cpp_project_namespace
antlr4cpp_grammar_lexer
antlr4cpp_grammar_parser)
if(EXISTS "${ANTLR4CPP_JAR_LOCATION}")
message(STATUS "Found antlr tool: ${ANTLR4CPP_JAR_LOCATION}")
if(${CMAKE_GENERATOR} MATCHES "Visual Studio.*")
set(ANTLR4_OUTPUT_DIR ${ANTLR4_ROOT}/runtime/Cpp/dist/$(Configuration))
elseif(${CMAKE_GENERATOR} MATCHES "Xcode.*")
set(ANTLR4_OUTPUT_DIR ${ANTLR4_ROOT}/runtime/Cpp/dist/$(CONFIGURATION))
else()
message(FATAL_ERROR "Unable to find antlr tool. ANTLR4CPP_JAR_LOCATION:${ANTLR4CPP_JAR_LOCATION}")
set(ANTLR4_OUTPUT_DIR ${ANTLR4_ROOT}/runtime/Cpp/dist)
endif()
add_custom_target("antlr4cpp_generation_${antlr4cpp_project_namespace}"
COMMAND
${CMAKE_COMMAND} -E make_directory ${ANTLR4CPP_GENERATED_SRC_DIR}
COMMAND
"${Java_JAVA_EXECUTABLE}" -jar "${ANTLR4CPP_JAR_LOCATION}" -Werror -Dlanguage=Cpp -listener -visitor -o "${ANTLR4CPP_GENERATED_SRC_DIR}/${antlr4cpp_project_namespace}" -package ${antlr4cpp_project_namespace} "${antlr4cpp_grammar_lexer}" "${antlr4cpp_grammar_parser}"
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
DEPENDS "${antlr4cpp_grammar_lexer}" "${antlr4cpp_grammar_parser}"
)
# Find all the input files
FILE(GLOB generated_files ${ANTLR4CPP_GENERATED_SRC_DIR}/${antlr4cpp_project_namespace}/*.cpp)
# export generated cpp files into list
foreach(generated_file ${generated_files})
list(APPEND antlr4cpp_src_files_${antlr4cpp_project_namespace} ${generated_file})
if (NOT CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
set_source_files_properties(
${generated_file}
PROPERTIES
COMPILE_FLAGS -Wno-overloaded-virtual
)
if(MSVC)
set(ANTLR4_STATIC_LIBRARIES
${ANTLR4_OUTPUT_DIR}/antlr4-runtime-static.lib)
set(ANTLR4_SHARED_LIBRARIES
${ANTLR4_OUTPUT_DIR}/antlr4-runtime.lib)
set(ANTLR4_RUNTIME_LIBRARIES
${ANTLR4_OUTPUT_DIR}/antlr4-runtime.dll)
else()
set(ANTLR4_STATIC_LIBRARIES
${ANTLR4_OUTPUT_DIR}/libantlr4-runtime.a)
if(MINGW)
set(ANTLR4_SHARED_LIBRARIES
${ANTLR4_OUTPUT_DIR}/libantlr4-runtime.dll.a)
set(ANTLR4_RUNTIME_LIBRARIES
${ANTLR4_OUTPUT_DIR}/libantlr4-runtime.dll)
elseif(CYGWIN)
set(ANTLR4_SHARED_LIBRARIES
${ANTLR4_OUTPUT_DIR}/libantlr4-runtime.dll.a)
set(ANTLR4_RUNTIME_LIBRARIES
${ANTLR4_OUTPUT_DIR}/cygantlr4-runtime-4.7.1.dll)
elseif(APPLE)
set(ANTLR4_RUNTIME_LIBRARIES
${ANTLR4_OUTPUT_DIR}/libantlr4-runtime.dylib)
else()
set(ANTLR4_RUNTIME_LIBRARIES
${ANTLR4_OUTPUT_DIR}/libantlr4-runtime.so)
endif()
endif()
endforeach(generated_file)
message(STATUS "Antlr4Cpp ${antlr4cpp_project_namespace} Generated: ${generated_files}")
# export generated include directory
set(antlr4cpp_include_dirs_${antlr4cpp_project_namespace} ${ANTLR4CPP_GENERATED_SRC_DIR}/${antlr4cpp_project_namespace})
message(STATUS "Antlr4Cpp ${antlr4cpp_project_namespace} include: ${ANTLR4CPP_GENERATED_SRC_DIR}/${antlr4cpp_project_namespace}")
if(${CMAKE_GENERATOR} MATCHES ".* Makefiles")
# This avoids
# 'warning: jobserver unavailable: using -j1. Add '+' to parent make rule.'
set(ANTLR4_BUILD_COMMAND $(MAKE))
elseif(${CMAKE_GENERATOR} MATCHES "Visual Studio.*")
set(ANTLR4_BUILD_COMMAND
${CMAKE_COMMAND}
--build .
--config $(Configuration)
--target)
elseif(${CMAKE_GENERATOR} MATCHES "Xcode.*")
set(ANTLR4_BUILD_COMMAND
${CMAKE_COMMAND}
--build .
--config $(CONFIGURATION)
--target)
else()
set(ANTLR4_BUILD_COMMAND
${CMAKE_COMMAND}
--build .
--target)
endif()
endmacro()
if(NOT DEFINED ANTLR4_WITH_STATIC_CRT)
set(ANTLR4_WITH_STATIC_CRT ON)
endif()
if(ANTLR4_ZIP_REPOSITORY)
ExternalProject_Add(
antlr4_runtime
PREFIX antlr4_runtime
URL ${ANTLR4_ZIP_REPOSITORY}
DOWNLOAD_DIR ${CMAKE_CURRENT_BINARY_DIR}
BUILD_COMMAND ""
BUILD_IN_SOURCE 1
SOURCE_DIR ${ANTLR4_ROOT}
SOURCE_SUBDIR runtime/Cpp
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
-DWITH_STATIC_CRT:BOOL=${ANTLR4_WITH_STATIC_CRT}
INSTALL_COMMAND ""
EXCLUDE_FROM_ALL 1)
else()
ExternalProject_Add(
antlr4_runtime
PREFIX antlr4_runtime
GIT_REPOSITORY ${ANTLR4_GIT_REPOSITORY}
GIT_TAG ${ANTLR4_TAG}
DOWNLOAD_DIR ${CMAKE_CURRENT_BINARY_DIR}
BUILD_COMMAND ""
BUILD_IN_SOURCE 1
SOURCE_DIR ${ANTLR4_ROOT}
SOURCE_SUBDIR runtime/Cpp
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
-DWITH_STATIC_CRT:BOOL=${ANTLR4_WITH_STATIC_CRT}
INSTALL_COMMAND ""
EXCLUDE_FROM_ALL 1)
endif()
# Seperate build step as rarely people want both
ExternalProject_Add_Step(
antlr4_runtime
build_static
COMMAND ${ANTLR4_BUILD_COMMAND} antlr4_static
# Depend on target instead of step (a custom command)
# to avoid running dependent steps concurrently
DEPENDS antlr4_runtime
BYPRODUCTS ${ANTLR4_STATIC_LIBRARIES}
EXCLUDE_FROM_MAIN 1
WORKING_DIRECTORY ${ANTLR4_ROOT})
ExternalProject_Add_StepTargets(antlr4_runtime build_static)
add_library(antlr4_static STATIC IMPORTED)
add_dependencies(antlr4_static antlr4_runtime-build_static)
set_target_properties(antlr4_static PROPERTIES
IMPORTED_LOCATION ${ANTLR4_STATIC_LIBRARIES})
ExternalProject_Add_Step(
antlr4_runtime
build_shared
COMMAND ${ANTLR4_BUILD_COMMAND} antlr4_shared
# Depend on target instead of step (a custom command)
# to avoid running dependent steps concurrently
DEPENDS antlr4_runtime
BYPRODUCTS ${ANTLR4_SHARED_LIBRARIES} ${ANTLR4_RUNTIME_LIBRARIES}
EXCLUDE_FROM_MAIN 1
WORKING_DIRECTORY ${ANTLR4_ROOT})
ExternalProject_Add_StepTargets(antlr4_runtime build_shared)
add_library(antlr4_shared SHARED IMPORTED)
add_dependencies(antlr4_shared antlr4_runtime-build_shared)
set_target_properties(antlr4_shared PROPERTIES
IMPORTED_LOCATION ${ANTLR4_RUNTIME_LIBRARIES})
if(ANTLR4_SHARED_LIBRARIES)
set_target_properties(antlr4_shared PROPERTIES
IMPORTED_IMPLIB ${ANTLR4_SHARED_LIBRARIES})
endif()

View File

@ -0,0 +1,124 @@
find_package(Java QUIET COMPONENTS Runtime)
if(NOT ANTLR_EXECUTABLE)
find_program(ANTLR_EXECUTABLE
NAMES antlr.jar antlr4.jar antlr-4.jar antlr-4.7.1-complete.jar)
endif()
if(ANTLR_EXECUTABLE AND Java_JAVA_EXECUTABLE)
execute_process(
COMMAND ${Java_JAVA_EXECUTABLE} -jar ${ANTLR_EXECUTABLE}
OUTPUT_VARIABLE ANTLR_COMMAND_OUTPUT
ERROR_VARIABLE ANTLR_COMMAND_ERROR
RESULT_VARIABLE ANTLR_COMMAND_RESULT
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(ANTLR_COMMAND_RESULT EQUAL 0)
string(REGEX MATCH "Version [0-9]+(\\.[0-9])*" ANTLR_VERSION ${ANTLR_COMMAND_OUTPUT})
string(REPLACE "Version " "" ANTLR_VERSION ${ANTLR_VERSION})
else()
message(
SEND_ERROR
"Command '${Java_JAVA_EXECUTABLE} -jar ${ANTLR_EXECUTABLE}' "
"failed with the output '${ANTLR_COMMAND_ERROR}'")
endif()
macro(ANTLR_TARGET Name InputFile)
set(ANTLR_OPTIONS LEXER PARSER LISTENER VISITOR)
set(ANTLR_ONE_VALUE_ARGS PACKAGE OUTPUT_DIRECTORY DEPENDS_ANTLR)
set(ANTLR_MULTI_VALUE_ARGS COMPILE_FLAGS DEPENDS)
cmake_parse_arguments(ANTLR_TARGET
"${ANTLR_OPTIONS}"
"${ANTLR_ONE_VALUE_ARGS}"
"${ANTLR_MULTI_VALUE_ARGS}"
${ARGN})
set(ANTLR_${Name}_INPUT ${InputFile})
get_filename_component(ANTLR_INPUT ${InputFile} NAME_WE)
if(ANTLR_TARGET_OUTPUT_DIRECTORY)
set(ANTLR_${Name}_OUTPUT_DIR ${ANTLR_TARGET_OUTPUT_DIRECTORY})
else()
set(ANTLR_${Name}_OUTPUT_DIR
${CMAKE_CURRENT_BINARY_DIR}/antlr4cpp_generated_src/${ANTLR_INPUT})
endif()
unset(ANTLR_${Name}_CXX_OUTPUTS)
if((ANTLR_TARGET_LEXER AND NOT ANTLR_TARGET_PARSER) OR
(ANTLR_TARGET_PARSER AND NOT ANTLR_TARGET_LEXER))
list(APPEND ANTLR_${Name}_CXX_OUTPUTS
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}.cpp)
set(ANTLR_${Name}_OUTPUTS
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}.interp
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}.tokens)
else()
list(APPEND ANTLR_${Name}_CXX_OUTPUTS
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Lexer.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Lexer.cpp
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Parser.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Parser.cpp)
list(APPEND ANTLR_${Name}_OUTPUTS
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Lexer.interp
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Lexer.tokens)
endif()
if(ANTLR_TARGET_LISTENER)
list(APPEND ANTLR_${Name}_CXX_OUTPUTS
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}BaseListener.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}BaseListener.cpp
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Listener.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Listener.cpp)
list(APPEND ANTLR_TARGET_COMPILE_FLAGS -listener)
endif()
if(ANTLR_TARGET_VISITOR)
list(APPEND ANTLR_${Name}_CXX_OUTPUTS
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}BaseVisitor.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}BaseVisitor.cpp
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Visitor.h
${ANTLR_${Name}_OUTPUT_DIR}/${ANTLR_INPUT}Visitor.cpp)
list(APPEND ANTLR_TARGET_COMPILE_FLAGS -visitor)
endif()
if(ANTLR_TARGET_PACKAGE)
list(APPEND ANTLR_TARGET_COMPILE_FLAGS -package ${ANTLR_TARGET_PACKAGE})
endif()
list(APPEND ANTLR_${Name}_OUTPUTS ${ANTLR_${Name}_CXX_OUTPUTS})
if(ANTLR_TARGET_DEPENDS_ANTLR)
if(ANTLR_${ANTLR_TARGET_DEPENDS_ANTLR}_INPUT)
list(APPEND ANTLR_TARGET_DEPENDS
${ANTLR_${ANTLR_TARGET_DEPENDS_ANTLR}_INPUT})
list(APPEND ANTLR_TARGET_DEPENDS
${ANTLR_${ANTLR_TARGET_DEPENDS_ANTLR}_OUTPUTS})
else()
message(SEND_ERROR
"ANTLR target '${ANTLR_TARGET_DEPENDS_ANTLR}' not found")
endif()
endif()
add_custom_command(
OUTPUT ${ANTLR_${Name}_OUTPUTS}
COMMAND ${Java_JAVA_EXECUTABLE} -jar ${ANTLR_EXECUTABLE}
${InputFile}
-o ${ANTLR_${Name}_OUTPUT_DIR}
-no-listener
-Dlanguage=Cpp
${ANTLR_TARGET_COMPILE_FLAGS}
DEPENDS ${InputFile}
${ANTLR_TARGET_DEPENDS}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Building ${Name} with ANTLR ${ANTLR_VERSION}")
endmacro(ANTLR_TARGET)
endif(ANTLR_EXECUTABLE AND Java_JAVA_EXECUTABLE)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
ANTLR
REQUIRED_VARS ANTLR_EXECUTABLE Java_JAVA_EXECUTABLE
VERSION_VAR ANTLR_VERSION)

154
runtime/Cpp/cmake/README.md Normal file
View File

@ -0,0 +1,154 @@
## Getting started with Antlr4Cpp
Here is how you can use this external project to create the antlr4cpp demo to start your project off.
1. Create your project source folder somewhere. e.g. ~/srcfolder/
1. Make a subfolder cmake
2. Copy the files in this folder to srcfolder/cmake
3. Cut below and use it to create srcfolder/CMakeLists.txt
4. Copy main.cpp, TLexer.g4 and TParser.g4 to ./srcfolder/ from [here](https://github.com/antlr/antlr4/tree/master/runtime/Cpp/demo)
2. Make a build folder e.g. ~/buildfolder/
3. From the buildfolder, run `cmake ~/srcfolder; make`
```cmake
# minimum required CMAKE version
CMAKE_MINIMUM_REQUIRED(VERSION 3.7 FATAL_ERROR)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
# compiler must be 11 or 14
set(CMAKE_CXX_STANDARD 11)
# required if linking to static library
add_definitions(-DANTLR4CPP_STATIC)
# using /MD flag for antlr4_runtime (for Visual C++ compilers only)
set(ANTLR4_WITH_STATIC_CRT OFF)
# add external build for antlrcpp
include(ExternalAntlr4Cpp)
# add antrl4cpp artifacts to project environment
include_directories(${ANTLR4_INCLUDE_DIRS})
# set variable pointing to the antlr tool that supports C++
# this is not required if the jar file can be found under PATH environment
set(ANTLR_EXECUTABLE /home/user/antlr-4.7.1-complete.jar)
# add macros to generate ANTLR Cpp code from grammar
find_package(ANTLR REQUIRED)
# Call macro to add lexer and grammar to your build dependencies.
antlr_target(SampleGrammarLexer TLexer.g4 LEXER
PACKAGE antlrcpptest)
antlr_target(SampleGrammarParser TParser.g4 PARSER
PACKAGE antlrcpptest
DEPENDS_ANTLR SampleGrammarLexer)
# include generated files in project environment
include_directories(${ANTLR_SampleGrammarLexer_OUTPUT_DIR})
include_directories(${ANTLR_SampleGrammarParser_OUTPUT_DIR})
# add generated grammar to demo binary target
add_executable(demo main.cpp
${ANTLR_SampleGrammarLexer_CXX_OUTPUTS}
${ANTLR_SampleGrammarParser_CXX_OUTPUTS})
target_link_libraries(demo antlr4_static)
```
## Documentation for FindANTLR
The module defines the following variables:
```
ANTLR_FOUND - true is ANTLR jar executable is found
ANTLR_EXECUTABLE - the path to the ANTLR jar executable
ANTLR_VERSION - the version of ANTLR
```
If ANTLR is found, the module will provide the macros:
```
ANTLR_TARGET(<name> <input>
[PACKAGE namespace]
[OUTPUT_DIRECTORY dir]
[DEPENDS_ANTLR <target>]
[COMPILE_FLAGS [args...]]
[DEPENDS [depends...]]
[LEXER]
[PARSER]
[LISTENER]
[VISITOR])
```
which creates a custom command to generate C++ files from `<input>`. Running the macro defines the following variables:
```
ANTLR_${name}_INPUT - the ANTLR input used for the macro
ANTLR_${name}_OUTPUTS - the outputs generated by ANTLR
ANTLR_${name}_CXX_OUTPUTS - the C++ outputs generated by ANTLR
ANTLR_${name}_OUTPUT_DIR - the output directory for ANTLR
```
The options are:
* `PACKAGE` - defines a namespace for the generated C++ files
* `OUTPUT_DIRECTORY` - the output directory for the generated files. By default it uses `${CMAKE_CURRENT_BINARY_DIR}`
* `DEPENDS_ANTLR` - the dependent target generated from antlr_target for the current call
* `COMPILE_FLAGS` - additional compile flags for ANTLR tool
* `DEPENDS` - specify the files on which the command depends. It works the same way `DEPENDS` in [`add_custom_command()`](https://cmake.org/cmake/help/v3.11/command/add_custom_command.html)
* `LEXER` - specify that the input file is a lexer grammar
* `PARSER` - specify that the input file is a parser grammar
* `LISTENER` - tell ANTLR tool to generate a parse tree listener
* `VISITOR` - tell ANTLR tool to generate a parse tree visitor
### Examples
To generate C++ files from an ANTLR input file T.g4, which defines both lexer and parser grammar one may call:
```cmake
find_package(ANTLR REQUIRED)
antlr_target(Sample T.g4)
```
Note that this command will do nothing unless the outputs of `Sample`, i.e. `ANTLR_Sample_CXX_OUTPUTS` gets used by some target.
## Documentation for ExternalAntlr4Cpp
Including ExternalAntlr4Cpp will add `antlr4_static` and `antlr4_shared` as an optional target. It will also define the following variables:
```
ANTLR4_INCLUDE_DIRS - the include directory that should be included when compiling C++ source file
ANTLR4_STATIC_LIBRARIES - path to antlr4 static library
ANTLR4_SHARED_LIBRARIES - path to antlr4 shared library
ANTLR4_RUNTIME_LIBRARIES - path to antlr4 shared runtime library (such as DLL, DYLIB and SO file)
ANTLR4_TAG - branch/tag used for building antlr4 library
```
`ANTLR4_TAG` is set to master branch by default to keep antlr4 updated. However, it will be required to rebuild after every `clean` is called. Set `ANTLR4_TAG` to a desired commit hash value to avoid rebuilding after every `clean` and keep the build stable, at the cost of not automatically update to latest commit.
The ANTLR C++ runtime source is downloaded from GitHub by default. However, users may specify `ANTLR4_ZIP_REPOSITORY` to list the zip file from [ANTLR downloads](http://www.antlr.org/download.html) (under *C++ Target*). This variable can list a zip file included in the project directory; this is useful for maintaining a canonical source for each new build.
Visual C++ compiler users may want to additionally define `ANTLR4_WITH_STATIC_CRT` before including the file. Set `ANTLR4_WITH_STATIC_CRT` to true if ANTLR4 C++ runtime library should be compiled with `/MT` flag, otherwise will be compiled with `/MD` flag. This variable has a default value of `OFF`. Changing `ANTLR4_WITH_STATIC_CRT` after building the library may require reinitialization of CMake or `clean` for the library to get rebuilt.
### Examples
To build and link ANTLR4 static library to a target one may call:
```cmake
include(ExternalAntlr4Cpp)
include_directories(${ANTLR4_INCLUDE_DIRS})
add_executable(output main.cpp)
target_link_libraries(output antlr4_static)
```
It may also be a good idea to copy the runtime libraries (DLL, DYLIB or SO file) to the executable for it to run properly after build. i.e. To build and link antlr4 shared library to a target one may call:
```cmake
include(ExternalAntlr4Cpp)
include_directories(${ANTLR4_INCLUDE_DIRS})
add_executable(output main.cpp)
target_link_libraries(output antlr4_shared)
add_custom_command(TARGET output
POST_BUILD
COMMAND ${CMAKE_COMMAND}
-E copy ${ANTLR4_RUNTIME_LIBRARIES} .
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
```

View File

@ -250,8 +250,8 @@
37D727A21867AF1E007B6D10 /* Project object */ = {
isa = PBXProject;
attributes = {
LastUpgradeCheck = 0800;
ORGANIZATIONNAME = "Dan McLaughlin";
LastUpgradeCheck = 1010;
ORGANIZATIONNAME = "ANTLR4 Project";
TargetAttributes = {
27C66A661C9591280021E494 = {
CreatedOnToolsVersion = 7.2.1;
@ -415,14 +415,22 @@
CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
CLANG_CXX_LIBRARY = "libc++";
CLANG_ENABLE_OBJC_ARC = YES;
CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
CLANG_WARN_BOOL_CONVERSION = YES;
CLANG_WARN_COMMA = YES;
CLANG_WARN_CONSTANT_CONVERSION = YES;
CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
CLANG_WARN_EMPTY_BODY = YES;
CLANG_WARN_ENUM_CONVERSION = YES;
CLANG_WARN_INFINITE_RECURSION = YES;
CLANG_WARN_INT_CONVERSION = YES;
CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
CLANG_WARN_STRICT_PROTOTYPES = YES;
CLANG_WARN_SUSPICIOUS_MOVE = YES;
CLANG_WARN_UNREACHABLE_CODE = YES;
CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@ -469,14 +477,22 @@
CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
CLANG_CXX_LIBRARY = "libc++";
CLANG_ENABLE_OBJC_ARC = YES;
CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
CLANG_WARN_BOOL_CONVERSION = YES;
CLANG_WARN_COMMA = YES;
CLANG_WARN_CONSTANT_CONVERSION = YES;
CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
CLANG_WARN_EMPTY_BODY = YES;
CLANG_WARN_ENUM_CONVERSION = YES;
CLANG_WARN_INFINITE_RECURSION = YES;
CLANG_WARN_INT_CONVERSION = YES;
CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
CLANG_WARN_STRICT_PROTOTYPES = YES;
CLANG_WARN_SUSPICIOUS_MOVE = YES;
CLANG_WARN_UNREACHABLE_CODE = YES;
CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;

View File

@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>IDEDidComputeMac32BitWarning</key>
<true/>
</dict>
</plist>

View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<Scheme
LastUpgradeVersion = "0800"
LastUpgradeVersion = "1010"
version = "1.3">
<BuildAction
parallelizeBuildables = "YES"
@ -26,8 +26,8 @@
buildConfiguration = "Debug"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
shouldUseLaunchSchemeArgsEnv = "YES"
codeCoverageEnabled = "YES">
codeCoverageEnabled = "YES"
shouldUseLaunchSchemeArgsEnv = "YES">
<Testables>
<TestableReference
skipped = "NO">

View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<Scheme
LastUpgradeVersion = "0800"
LastUpgradeVersion = "1010"
version = "1.3">
<BuildAction
parallelizeBuildables = "YES"

View File

@ -64,8 +64,13 @@ if (WIN32)
set(extra_static_compile_flags "-DANTLR4CPP_STATIC")
endif(WIN32)
if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
target_compile_options(antlr4_shared PRIVATE "/MD$<$<CONFIG:Debug>:d>")
if(WITH_STATIC_CRT)
target_compile_options(antlr4_shared PRIVATE "/MT$<$<CONFIG:Debug>:d>")
target_compile_options(antlr4_static PRIVATE "/MT$<$<CONFIG:Debug>:d>")
else()
target_compile_options(antlr4_shared PRIVATE "/MD$<$<CONFIG:Debug>:d>")
target_compile_options(antlr4_static PRIVATE "/MD$<$<CONFIG:Debug>:d>")
endif()
endif()
set(static_lib_suffix "")

View File

@ -35,7 +35,7 @@
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{A9762991-1B57-4DCE-90C0-EE42B96947BE}</ProjectGuid>
<ProjectGuid>{229A61DC-1207-4E4E-88B0-F4CB7205672D}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>antlr4cpp</RootNamespace>
</PropertyGroup>
@ -223,7 +223,7 @@
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>ANTLR4CPP_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions>ANTLR4CPP_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>src/tree;src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PrecompiledHeaderFile>
</PrecompiledHeaderFile>
@ -305,7 +305,7 @@
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>ANTLR4CPP_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions>ANTLR4CPP_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>src/tree;src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PrecompiledHeaderFile>
</PrecompiledHeaderFile>

View File

@ -230,7 +230,7 @@
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>ANTLR4CPP_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions>ANTLR4CPP_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PrecompiledHeaderFile>
</PrecompiledHeaderFile>
@ -317,7 +317,7 @@
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>ANTLR4CPP_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions>ANTLR4CPP_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PrecompiledHeaderFile>
</PrecompiledHeaderFile>

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@ -0,0 +1,652 @@
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@ -2855,14 +2843,20 @@
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CLANG_WARN_SUSPICIOUS_IMPLICIT_CONVERSION = YES;
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@ -2908,14 +2902,20 @@
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View File

@ -0,0 +1,8 @@
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View File

@ -1,6 +1,6 @@
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View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
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version = "1.3">
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View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
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version = "1.3">
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View File

@ -272,7 +272,7 @@ namespace antlr4 {
/// <seealso cref="#_ctx"/> get the current context.
virtual void enterRule(ParserRuleContext *localctx, size_t state, size_t ruleIndex);
virtual void exitRule();
void exitRule();
virtual void enterOuterAlt(ParserRuleContext *localctx, size_t altNum);

View File

@ -78,7 +78,12 @@
#endif
#endif
class ANTLR4CPP_PUBLIC std::exception; // Needed for VS 2015.
#if defined(_MSC_VER) && !defined(__clang__)
// clang-cl should escape this to prevent [ignored-attributes].
namespace std {
class ANTLR4CPP_PUBLIC exception; // Prevents warning C4275 from MSVC.
} // namespace std
#endif
#elif defined(__APPLE__)
typedef std::u32string UTF32String;

View File

@ -66,6 +66,7 @@ void ATNState::addTransition(size_t index, Transition *e) {
}
Transition *ATNState::removeTransition(size_t index) {
Transition *result = transitions[index];
transitions.erase(transitions.begin() + index);
return nullptr;
return result;
}

View File

@ -1,4 +1,4 @@
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
@ -99,7 +99,7 @@ void LexerATNSimulator::clearDFA() {
size_t size = _decisionToDFA.size();
_decisionToDFA.clear();
for (size_t d = 0; d < size; ++d) {
_decisionToDFA.push_back(dfa::DFA(atn.getDecisionState(d), d));
_decisionToDFA.emplace_back(atn.getDecisionState(d), d);
}
}

View File

@ -1,4 +1,4 @@
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
@ -127,8 +127,10 @@ size_t ParserATNSimulator::adaptivePredict(TokenStream *input, size_t decision,
dfa::DFAState *newState = new dfa::DFAState(std::move(s0_closure)); /* mem-check: managed by the DFA or deleted below */
s0 = addDFAState(dfa, newState);
if (dfa.s0 != s0) {
delete dfa.s0; // Delete existing s0 DFA state, if there's any.
dfa.s0 = s0;
}
if (s0 != newState) {
delete newState; // If there was already a state with this config set we don't need the new one.
}
@ -891,15 +893,6 @@ void ParserATNSimulator::closure_(Ref<ATNConfig> const& config, ATNConfigSet *co
bool continueCollecting = !is<ActionTransition*>(t) && collectPredicates;
Ref<ATNConfig> c = getEpsilonTarget(config, t, continueCollecting, depth == 0, fullCtx, treatEofAsEpsilon);
if (c != nullptr) {
if (!t->isEpsilon()) {
// avoid infinite recursion for EOF* and EOF+
if (closureBusy.count(c) == 0) {
closureBusy.insert(c);
} else {
continue;
}
}
int newDepth = depth;
if (is<RuleStopState*>(config->state)) {
assert(!fullCtx);
@ -924,6 +917,16 @@ void ParserATNSimulator::closure_(Ref<ATNConfig> const& config, ATNConfigSet *co
}
c->reachesIntoOuterContext++;
if (!t->isEpsilon()) {
// avoid infinite recursion for EOF* and EOF+
if (closureBusy.count(c) == 0) {
closureBusy.insert(c);
} else {
continue;
}
}
configs->dipsIntoOuterContext = true; // TO_DO: can remove? only care when we add to set per middle of this method
assert(newDepth > INT_MIN);
@ -932,7 +935,16 @@ void ParserATNSimulator::closure_(Ref<ATNConfig> const& config, ATNConfigSet *co
std::cout << "dips into outer ctx: " << c << std::endl;
#endif
} else if (is<RuleTransition*>(t)) {
} else if (!t->isEpsilon()) {
// avoid infinite recursion for EOF* and EOF+
if (closureBusy.count(c) == 0) {
closureBusy.insert(c);
} else {
continue;
}
}
if (is<RuleTransition*>(t)) {
// latch when newDepth goes negative - once we step out of the entry context we can't return
if (newDepth >= 0) {
newDepth++;

View File

@ -35,7 +35,7 @@ size_t ProfilingATNSimulator::adaptivePredict(TokenStream *input, size_t decisio
_sllStopIndex = -1;
_llStopIndex = -1;
_currentDecision = decision;
high_resolution_clock::time_point start = high_resolution_clock::now(); // expensive but useful info
high_resolution_clock::time_point start = high_resolution_clock::now();
size_t alt = ParserATNSimulator::adaptivePredict(input, decision, outerContext);
high_resolution_clock::time_point stop = high_resolution_clock::now();
_decisions[decision].timeInPrediction += duration_cast<nanoseconds>(stop - start).count();

View File

@ -14,7 +14,7 @@ namespace atn {
class ANTLR4CPP_PUBLIC TokensStartState final : public DecisionState {
public:
virtual size_t getStateType();
virtual size_t getStateType() override;
};
} // namespace atn

View File

@ -1,4 +1,4 @@
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
@ -40,8 +40,7 @@ namespace misc {
IntervalSet(IntervalSet&& set);
template<typename T1, typename... T_NEXT>
IntervalSet(int, T1 t1, T_NEXT&&... next) : IntervalSet()
{
IntervalSet(int, T1 t1, T_NEXT&&... next) : IntervalSet() {
// The first int argument is an ignored count for compatibility
// with the previous varargs based interface.
addItems(t1, std::forward<T_NEXT>(next)...);
@ -78,8 +77,7 @@ namespace misc {
IntervalSet& addAll(const IntervalSet &set);
template<typename T1, typename... T_NEXT>
void addItems(T1 t1, T_NEXT&&... next)
{
void addItems(T1 t1, T_NEXT&&... next) {
add(t1);
addItems(std::forward<T_NEXT>(next)...);
}

View File

@ -11,6 +11,3 @@ Any::~Any()
{
delete _ptr;
}
Any::Base::~Base() {
}

View File

@ -100,7 +100,7 @@ struct ANTLR4CPP_PUBLIC Any
private:
struct Base {
virtual ~Base();
virtual ~Base() {};
virtual Base* clone() const = 0;
};
@ -112,10 +112,21 @@ private:
T value;
Base* clone() const {
return clone<>();
}
private:
template<int N = 0, typename std::enable_if<N == N && std::is_nothrow_copy_constructible<T>::value, int>::type = 0>
Base* clone() const {
return new Derived<T>(value);
}
template<int N = 0, typename std::enable_if<N == N && !std::is_nothrow_copy_constructible<T>::value, int>::type = 0>
Base* clone() const {
return nullptr;
}
};
Base* clone() const

View File

@ -70,7 +70,7 @@ namespace pattern {
/// are returned in the form {@code label:tag}, and unlabeled tags are
/// returned as just the tag name.
/// </summary>
virtual std::string toString();
virtual std::string toString() override;
private:
/// This is the backing field for <seealso cref="#getTag"/>.

View File

@ -43,7 +43,7 @@ namespace pattern {
/// The implementation for <seealso cref="TextChunk"/> returns the result of
/// <seealso cref="#getText()"/> in single quotes.
/// </summary>
virtual std::string toString();
virtual std::string toString() override;
};
} // namespace pattern

View File

@ -96,6 +96,7 @@
<phase>process-classes</phase>
<configuration>
<instructions>
<Automatic-Module-Name>org.antlr.antlr4.runtime</Automatic-Module-Name>
<Bundle-SymbolicName>org.antlr.antlr4-runtime</Bundle-SymbolicName>
</instructions>
</configuration>

View File

@ -11,7 +11,7 @@ require('./polyfills/fromcodepoint');
// Vacuum all input from a string and then treat it like a buffer.
function _loadString(stream, decodeToUnicodeCodePoints) {
function _loadString(stream) {
stream._index = 0;
stream.data = [];
if (stream.decodeToUnicodeCodePoints) {

View File

@ -11,7 +11,7 @@
"antlr4",
"grammar"
],
"license": "BSD",
"license": "BSD-3-Clause",
"bugs": {
"url": "https://github.com/antlr/antlr4/issues"
},

View File

@ -73,7 +73,11 @@ ParseTreeVisitor.prototype.visit = function(ctx) {
};
ParseTreeVisitor.prototype.visitChildren = function(ctx) {
if (ctx.children) {
return this.visit(ctx.children);
} else {
return null;
}
}
ParseTreeVisitor.prototype.visitTerminal = function(node) {

View File

@ -0,0 +1,11 @@
import codecs
import sys
from antlr4.InputStream import InputStream
class StdinStream(InputStream):
def __init__(self, encoding:str='ascii', errors:str='strict') -> None:
bytes = sys.stdin.buffer.read()
data = codecs.decode(bytes, encoding, errors)
super().__init__(data)

View File

@ -1,6 +1,7 @@
from antlr4.Token import Token
from antlr4.InputStream import InputStream
from antlr4.FileStream import FileStream
from antlr4.StdinStream import StdinStream
from antlr4.BufferedTokenStream import TokenStream
from antlr4.CommonTokenStream import CommonTokenStream
from antlr4.Lexer import Lexer

View File

@ -1608,7 +1608,7 @@ class ParserATNSimulator(ATNSimulator):
def reportAttemptingFullContext(self, dfa:DFA, conflictingAlts:set, configs:ATNConfigSet, startIndex:int, stopIndex:int):
if ParserATNSimulator.debug or ParserATNSimulator.retry_debug:
interval = range(startIndex, stopIndex + 1)
interval = (startIndex, stopIndex + 1)
print("reportAttemptingFullContext decision=" + str(dfa.decision) + ":" + str(configs) +
", input=" + self.parser.getTokenStream().getText(interval))
if self.parser is not None:
@ -1616,7 +1616,7 @@ class ParserATNSimulator(ATNSimulator):
def reportContextSensitivity(self, dfa:DFA, prediction:int, configs:ATNConfigSet, startIndex:int, stopIndex:int):
if ParserATNSimulator.debug or ParserATNSimulator.retry_debug:
interval = range(startIndex, stopIndex + 1)
interval = (startIndex, stopIndex + 1)
print("reportContextSensitivity decision=" + str(dfa.decision) + ":" + str(configs) +
", input=" + self.parser.getTokenStream().getText(interval))
if self.parser is not None:
@ -1642,7 +1642,7 @@ class ParserATNSimulator(ATNSimulator):
# }
# i++;
# }
interval = range(startIndex, stopIndex + 1)
interval = (startIndex, stopIndex + 1)
print("reportAmbiguity " + str(ambigAlts) + ":" + str(configs) +
", input=" + self.parser.getTokenStream().getText(interval))
if self.parser is not None:

View File

@ -135,8 +135,8 @@ class PrecedencePredicate(SemanticContext):
else:
return None
def __cmp__(self, other):
return self.precedence - other.precedence
def __lt__(self, other):
return self.precedence < other.precedence
def __hash__(self):
return 31

View File

@ -2,17 +2,16 @@
/// Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
/// Use of this file is governed by the BSD 3-clause license that
/// can be found in the LICENSE.txt file in the project root.
///
///
/// Vacuum all input from a _java.io.Reader_/_java.io.InputStream_ and then treat it
/// like a `char[]` buffer. Can also pass in a _String_ or
/// `char[]` to use.
///
/// If you need encoding, pass in stream/reader with correct encoding.
///
public class ANTLRInputStream: CharStream {
public static let READ_BUFFER_SIZE: Int = 1024
public static let INITIAL_BUFFER_SIZE: Int = 1024
///
/// The data being scanned
///
@ -24,9 +23,9 @@ public class ANTLRInputStream: CharStream {
internal var n: Int
///
/// 0..n-1 index into string of next char
/// 0...n-1 index into string of next char
///
internal var p: Int = 0
internal var p = 0
///
/// What is name or source of this char stream?
@ -62,7 +61,7 @@ public class ANTLRInputStream: CharStream {
if p >= n {
assert(LA(1) == ANTLRInputStream.EOF, "Expected: LA(1)==IntStream.EOF")
throw ANTLRError.illegalState(msg: "annot consume EOF")
throw ANTLRError.illegalState(msg: "cannot consume EOF")
}
@ -99,7 +98,7 @@ public class ANTLRInputStream: CharStream {
}
///
/// Return the current input symbol index 0..n where n indicates the
/// Return the current input symbol index 0...n where n indicates the
/// last symbol has been read. The index is the index of char to
/// be returned from LA(1).
///
@ -141,24 +140,16 @@ public class ANTLRInputStream: CharStream {
}
public func getText(_ interval: Interval) -> String {
let start: Int = interval.a
var stop: Int = interval.b
if stop >= n {
stop = n - 1
}
let count = stop - start + 1;
let start = interval.a
if start >= n {
return ""
}
return String(data[start ..< (start + count)])
let stop = min(n, interval.b + 1)
return String(data[start ..< stop])
}
public func getSourceName() -> String {
guard let name = name , !name.isEmpty else {
return ANTLRInputStream.UNKNOWN_SOURCE_NAME
}
return name
return name ?? ANTLRInputStream.UNKNOWN_SOURCE_NAME
}
public func toString() -> String {

View File

@ -30,8 +30,7 @@ public class BufferedTokenStream: TokenStream {
/// considered a complete view of the input once _#fetchedEOF_ is set
/// to `true`.
///
internal var tokens: Array<Token> = Array<Token>()
// Array<Token>(100
internal var tokens = [Token]()
///
/// The index into _#tokens_ of the current token (next token to
@ -44,7 +43,7 @@ public class BufferedTokenStream: TokenStream {
/// see the documentation of _org.antlr.v4.runtime.IntStream_ for a description of
/// Initializing Methods.
///
internal var p: Int = -1
internal var p = -1
///
/// Indicates whether the _org.antlr.v4.runtime.Token#EOF_ token has been fetched from
@ -58,10 +57,10 @@ public class BufferedTokenStream: TokenStream {
/// * _#fetch_: The check to prevent adding multiple EOF symbols into
/// _#tokens_ is trivial with this field.
///
internal var fetchedEOF: Bool = false
internal var fetchedEOF = false
public init(_ tokenSource: TokenSource) {
self.tokenSource = tokenSource
}
@ -135,10 +134,10 @@ public class BufferedTokenStream: TokenStream {
@discardableResult
internal func sync(_ i: Int) throws -> Bool {
assert(i >= 0, "Expected: i>=0")
let n: Int = i - tokens.count + 1 // how many more elements we need?
let n = i - tokens.count + 1 // how many more elements we need?
//print("sync("+i+") needs "+n);
if n > 0 {
let fetched: Int = try fetch(n)
let fetched = try fetch(n)
return fetched >= n
}
@ -156,12 +155,12 @@ public class BufferedTokenStream: TokenStream {
}
for i in 0..<n {
let t: Token = try tokenSource.nextToken()
if t is WritableToken {
(t as! WritableToken).setTokenIndex(tokens.count)
let t = try tokenSource.nextToken()
if let wt = t as? WritableToken {
wt.setTokenIndex(tokens.count)
}
tokens.append(t) //add
tokens.append(t)
if t.getType() == BufferedTokenStream.EOF {
fetchedEOF = true
return i + 1
@ -173,14 +172,13 @@ public class BufferedTokenStream: TokenStream {
public func get(_ i: Int) throws -> Token {
if i < 0 || i >= tokens.count {
let index = tokens.count - 1
throw ANTLRError.indexOutOfBounds(msg: "token index \(i) out of range 0..\(index)")
throw ANTLRError.indexOutOfBounds(msg: "token index \(i) out of range 0 ..< \(tokens.count)")
}
return tokens[i]
}
///
/// Get all tokens from start..stop inclusively
/// Get all tokens from start...stop inclusively
///
public func get(_ start: Int,_ stop: Int) throws -> Array<Token>? {
var stop = stop
@ -188,12 +186,12 @@ public class BufferedTokenStream: TokenStream {
return nil
}
try lazyInit()
var subset: Array<Token> = Array<Token>()
var subset = [Token]()
if stop >= tokens.count {
stop = tokens.count - 1
}
for i in start...stop {
let t: Token = tokens[i]
let t = tokens[i]
if t.getType() == BufferedTokenStream.EOF {
break
}
@ -223,14 +221,13 @@ public class BufferedTokenStream: TokenStream {
return try LB(-k)
}
let i: Int = p + k - 1
let i = p + k - 1
try sync(i)
if i >= tokens.count {
// return EOF token
// EOF must be last token
return tokens[tokens.count - 1]
return tokens.last!
}
// if ( i>range ) range = i;
return tokens[i]
}
@ -289,7 +286,7 @@ public class BufferedTokenStream: TokenStream {
try lazyInit()
if start < 0 || start >= tokens.count ||
stop < 0 || stop >= tokens.count {
throw ANTLRError.indexOutOfBounds(msg: "start \(start) or stop \(stop) not in 0...\(tokens.count - 1)")
throw ANTLRError.indexOutOfBounds(msg: "start \(start) or stop \(stop) not in 0 ..< \(tokens.count)")
}
if start > stop {
@ -330,7 +327,7 @@ public class BufferedTokenStream: TokenStream {
return size() - 1
}
var token: Token = tokens[i]
var token = tokens[i]
while token.getChannel() != channel {
if token.getType() == BufferedTokenStream.EOF {
return i
@ -363,7 +360,7 @@ public class BufferedTokenStream: TokenStream {
}
while i >= 0 {
let token: Token = tokens[i]
let token = tokens[i]
if token.getType() == BufferedTokenStream.EOF || token.getChannel() == channel {
return i
}
@ -379,45 +376,35 @@ public class BufferedTokenStream: TokenStream {
/// the current token up until we see a token on DEFAULT_TOKEN_CHANNEL or
/// EOF. If channel is -1, find any non default channel token.
///
public func getHiddenTokensToRight(_ tokenIndex: Int, _ channel: Int) throws -> Array<Token>? {
public func getHiddenTokensToRight(_ tokenIndex: Int, _ channel: Int = -1) throws -> [Token]? {
try lazyInit()
if tokenIndex < 0 || tokenIndex >= tokens.count {
throw ANTLRError.indexOutOfBounds(msg: "\(tokenIndex) not in 0..\(tokens.count - 1)")
throw ANTLRError.indexOutOfBounds(msg: "\(tokenIndex) not in 0 ..< \(tokens.count)")
}
let nextOnChannel: Int =
try nextTokenOnChannel(tokenIndex + 1, Lexer.DEFAULT_TOKEN_CHANNEL)
var to: Int
let from: Int = tokenIndex + 1
let nextOnChannel = try nextTokenOnChannel(tokenIndex + 1, Lexer.DEFAULT_TOKEN_CHANNEL)
let from = tokenIndex + 1
let to: Int
// if none onchannel to right, nextOnChannel=-1 so set to = last token
if nextOnChannel == -1 {
to = size() - 1
} else {
}
else {
to = nextOnChannel
}
return filterForChannel(from, to, channel)
}
///
/// Collect all hidden tokens (any off-default channel) to the right of
/// the current token up until we see a token on DEFAULT_TOKEN_CHANNEL
/// or EOF.
///
public func getHiddenTokensToRight(_ tokenIndex: Int) throws -> Array<Token>? {
return try getHiddenTokensToRight(tokenIndex, -1)
}
///
/// Collect all tokens on specified channel to the left of
/// the current token up until we see a token on DEFAULT_TOKEN_CHANNEL.
/// If channel is -1, find any non default channel token.
///
public func getHiddenTokensToLeft(_ tokenIndex: Int, _ channel: Int) throws -> Array<Token>? {
public func getHiddenTokensToLeft(_ tokenIndex: Int, _ channel: Int = -1) throws -> [Token]? {
try lazyInit()
if tokenIndex < 0 || tokenIndex >= tokens.count {
throw ANTLRError.indexOutOfBounds(msg: "\(tokenIndex) not in 0..\(tokens.count - 1)")
throw ANTLRError.indexOutOfBounds(msg: "\(tokenIndex) not in 0 ..< \(tokens.count)")
}
if tokenIndex == 0 {
@ -425,26 +412,16 @@ public class BufferedTokenStream: TokenStream {
return nil
}
let prevOnChannel: Int =
try previousTokenOnChannel(tokenIndex - 1, Lexer.DEFAULT_TOKEN_CHANNEL)
let prevOnChannel = try previousTokenOnChannel(tokenIndex - 1, Lexer.DEFAULT_TOKEN_CHANNEL)
if prevOnChannel == tokenIndex - 1 {
return nil
}
// if none onchannel to left, prevOnChannel=-1 then from=0
let from: Int = prevOnChannel + 1
let to: Int = tokenIndex - 1
let from = prevOnChannel + 1
let to = tokenIndex - 1
return filterForChannel(from, to, channel)
}
///
/// Collect all hidden tokens (any off-default channel) to the left of
/// the current token up until we see a token on DEFAULT_TOKEN_CHANNEL.
///
public func getHiddenTokensToLeft(_ tokenIndex: Int) throws -> [Token]? {
return try getHiddenTokensToLeft(tokenIndex, -1)
}
internal func filterForChannel(_ from: Int, _ to: Int, _ channel: Int) -> [Token]? {
var hidden = [Token]()
for t in tokens[from...to] {
@ -478,17 +455,13 @@ public class BufferedTokenStream: TokenStream {
public func getText(_ interval: Interval) throws -> String {
let start = interval.a
var stop = interval.b
if start < 0 || stop < 0 {
if start < 0 {
return ""
}
try fill()
if stop >= tokens.count {
stop = tokens.count - 1
}
let stop = min(tokens.count, interval.b + 1)
var buf = ""
for t in tokens[start...stop] {
for t in tokens[start ..< stop] {
if t.getType() == BufferedTokenStream.EOF {
break
}

View File

@ -79,10 +79,10 @@ public class ListTokenSource: TokenSource {
else if let eofToken = eofToken {
return eofToken.getCharPositionInLine()
}
else if tokens.count > 0 {
else if !tokens.isEmpty {
// have to calculate the result from the line/column of the previous
// token, along with the text of the token.
let lastToken = tokens[tokens.count - 1]
let lastToken = tokens.last!
if let tokenText = lastToken.getText() {
if let lastNewLine = tokenText.lastIndex(of: "\n") {
@ -93,11 +93,12 @@ public class ListTokenSource: TokenSource {
lastToken.getStopIndex() -
lastToken.getStartIndex() + 1)
}
else {
// only reach this if tokens is empty, meaning EOF occurs at the first
// position in the input
return 0
}
}
public func nextToken() -> Token {
if i >= tokens.count {
@ -130,14 +131,14 @@ public class ListTokenSource: TokenSource {
public func getLine() -> Int {
if i < tokens.count {
return tokens[i].getLine()
} else {
if let eofToken = eofToken {
}
else if let eofToken = eofToken {
return eofToken.getLine()
} else {
if tokens.count > 0 {
}
else if !tokens.isEmpty {
// have to calculate the result from the line/column of the previous
// token, along with the text of the token.
let lastToken = tokens[tokens.count - 1]
let lastToken = tokens.last!
var line = lastToken.getLine()
if let tokenText = lastToken.getText() {
@ -151,13 +152,12 @@ public class ListTokenSource: TokenSource {
// if no text is available, assume the token did not contain any newline characters.
return line
}
}
}
else {
// only reach this if tokens is empty, meaning EOF occurs at the first
// position in the input
return 1
}
}
public func getInputStream() -> CharStream? {
if i < tokens.count {
@ -166,8 +166,8 @@ public class ListTokenSource: TokenSource {
else if let eofToken = eofToken {
return eofToken.getInputStream()
}
else if tokens.count > 0 {
return tokens[tokens.count - 1].getInputStream()
else if !tokens.isEmpty {
return tokens.last!.getInputStream()
}
// no input stream information is available

View File

@ -8,6 +8,20 @@
import Foundation
///
/// This field maps from the serialized ATN string to the deserialized _org.antlr.v4.runtime.atn.ATN_ with
/// bypass alternatives.
///
/// - SeeAlso: `ATNDeserializationOptions.generateRuleBypassTransitions`
///
private var bypassAltsAtnCache = [String: ATN]()
///
/// mutex for bypassAltsAtnCache updates
///
private let bypassAltsAtnCacheMutex = Mutex()
///
/// This is all the parsing support code essentially; most of it is error recovery stuff.
///
@ -58,25 +72,6 @@ open class Parser: Recognizer<ParserATNSimulator> {
}
}
///
/// mutex for bypassAltsAtnCache updates
///
private let bypassAltsAtnCacheMutex = Mutex()
///
/// mutex for decisionToDFA updates
///
private let decisionToDFAMutex = Mutex()
///
/// This field maps from the serialized ATN string to the deserialized _org.antlr.v4.runtime.atn.ATN_ with
/// bypass alternatives.
///
/// - SeeAlso: org.antlr.v4.runtime.atn.ATNDeserializationOptions#isGenerateRuleBypassTransitions()
///
private let bypassAltsAtnCache: HashMap<String, ATN> = HashMap<String, ATN>()
///
/// The error handling strategy for the parser. The default value is a new
/// instance of _org.antlr.v4.runtime.DefaultErrorStrategy_.
@ -418,22 +413,20 @@ open class Parser: Recognizer<ParserATNSimulator> {
/// The ATN with bypass alternatives is expensive to create so we create it
/// lazily.
///
/// - Throws: _ANTLRError.unsupportedOperation_ if the current parser does not
/// implement the _#getSerializedATN()_ method.
///
public func getATNWithBypassAlts() -> ATN {
let serializedAtn = getSerializedATN()
var result = bypassAltsAtnCache[serializedAtn]
bypassAltsAtnCacheMutex.synchronized { [unowned self] in
if result == nil {
let deserializationOptions = ATNDeserializationOptions()
try! deserializationOptions.setGenerateRuleBypassTransitions(true)
result = try! ATNDeserializer(deserializationOptions).deserialize(Array(serializedAtn))
self.bypassAltsAtnCache[serializedAtn] = result!
return bypassAltsAtnCacheMutex.synchronized {
if let cachedResult = bypassAltsAtnCache[serializedAtn] {
return cachedResult
}
var opts = ATNDeserializationOptions()
opts.generateRuleBypassTransitions = true
let result = try! ATNDeserializer(opts).deserialize(Array(serializedAtn))
bypassAltsAtnCache[serializedAtn] = result
return result
}
return result!
}
///
@ -965,18 +958,13 @@ open class Parser: Recognizer<ParserATNSimulator> {
/// For debugging and other purposes.
public func getDFAStrings() -> [String] {
var s = [String]()
guard let _interp = _interp else {
return s
return []
}
decisionToDFAMutex.synchronized { [unowned self] in
for d in 0..<_interp.decisionToDFA.count {
let dfa = _interp.decisionToDFA[d]
s.append(dfa.toString(self.getVocabulary()))
let vocab = getVocabulary()
return _interp.decisionToDFA.map {
$0.toString(vocab)
}
}
return s
}
/// For debugging and other purposes.
@ -984,22 +972,19 @@ open class Parser: Recognizer<ParserATNSimulator> {
guard let _interp = _interp else {
return
}
decisionToDFAMutex.synchronized { [unowned self] in
var seenOne = false
let vocab = getVocabulary()
for dfa in _interp.decisionToDFA {
if !dfa.states.isEmpty {
if seenOne {
print("")
}
print("Decision \(dfa.decision):")
print(dfa.toString(self.getVocabulary()), terminator: "")
print(dfa.toString(vocab), terminator: "")
seenOne = true
}
}
}
}
public func getSourceName() -> String {
return _input.getSourceName()

View File

@ -12,22 +12,22 @@ public class UnbufferedTokenStream: TokenStream {
/// we keep adding to buffer. Otherwise, _#consume consume()_ resets so
/// we start filling at index 0 again.
///
internal var tokens: [Token]
internal var tokens = [Token]()
///
/// The number of tokens currently in _#tokens tokens_.
/// The number of tokens currently in `self.tokens`.
///
/// This is not the buffer capacity, that's `tokens.length`.
/// This is not the buffer capacity, that's `self.tokens.count`.
///
internal var n: Int
internal var n = 0
///
/// 0..n-1 index into _#tokens tokens_ of next token.
/// `0...n-1` index into `self.tokens` of next token.
///
/// The `LT(1)` token is `tokens[p]`. If `p == n`, we are
/// out of buffered tokens.
///
internal var p: Int = 0
internal var p = 0
///
/// Count up with _#mark mark()_ and down with
@ -35,7 +35,7 @@ public class UnbufferedTokenStream: TokenStream {
/// `numMarkers` reaches 0 and we reset the buffer. Copy
/// `tokens[p]..tokens[n-1]` to `tokens[0]..tokens[(n-1)-p]`.
///
internal var numMarkers: Int = 0
internal var numMarkers = 0
///
/// This is the `LT(-1)` token for the current position.
@ -56,24 +56,18 @@ public class UnbufferedTokenStream: TokenStream {
/// This value is used to set the token indexes if the stream provides tokens
/// that implement _org.antlr.v4.runtime.WritableToken_.
///
internal var currentTokenIndex: Int = 0
internal var currentTokenIndex = 0
public convenience init(_ tokenSource: TokenSource) throws {
try self.init(tokenSource, 256)
}
//TODO: bufferSize don't be use
public init(_ tokenSource: TokenSource, _ bufferSize: Int) throws {
public init(_ tokenSource: TokenSource) throws {
self.tokenSource = tokenSource
//tokens = [Token](count: bufferSize, repeatedValue: Token) ;
tokens = [Token]()
n = 0
try fill(1) // prime the pump
}
public func get(_ i: Int) throws -> Token {
// get absolute index
let bufferStartIndex: Int = getBufferStartIndex()
let bufferStartIndex = getBufferStartIndex()
if i < bufferStartIndex || i >= bufferStartIndex + n {
throw ANTLRError.indexOutOfBounds(msg: "get(\(i)) outside buffer: \(bufferStartIndex)..\(bufferStartIndex + n)")
}
@ -184,8 +178,8 @@ public class UnbufferedTokenStream: TokenStream {
//tokens = Arrays.copyOf(tokens, tokens.length * 2);
}
if t is WritableToken {
(t as! WritableToken).setTokenIndex(getBufferStartIndex() + n)
if let wt = t as? WritableToken {
wt.setTokenIndex(getBufferStartIndex() + n)
}
tokens[n] = t
@ -205,14 +199,14 @@ public class UnbufferedTokenStream: TokenStream {
lastTokenBufferStart = lastToken
}
let mark: Int = -numMarkers - 1
let mark = -numMarkers - 1
numMarkers += 1
return mark
}
public func release(_ marker: Int) throws {
let expectedMark: Int = -numMarkers
let expectedMark = -numMarkers
if marker != expectedMark {
throw ANTLRError.illegalState(msg: "release() called with an invalid marker.")
}
@ -224,7 +218,6 @@ public class UnbufferedTokenStream: TokenStream {
// Copy tokens[p]..tokens[n-1] to tokens[0]..tokens[(n-1)-p], reset ptrs
// p is last valid token; move nothing if p==n as we have no valid char
tokens = Array(tokens[p ... n - 1])
//System.arraycopy(tokens, p, tokens, 0, n - p); // shift n-p tokens from p to 0
n = n - p
p = 0
}
@ -251,16 +244,14 @@ public class UnbufferedTokenStream: TokenStream {
index = min(index, getBufferStartIndex() + n - 1)
}
let bufferStartIndex: Int = getBufferStartIndex()
let i: Int = index - bufferStartIndex
let bufferStartIndex = getBufferStartIndex()
let i = index - bufferStartIndex
if i < 0 {
throw ANTLRError.illegalState(msg: "cannot seek to negative index \(index)")
} else {
if i >= n {
throw ANTLRError.unsupportedOperation(msg: "seek to index outside buffer: \(index) not in \(bufferStartIndex)..\(bufferStartIndex + n)")
}
else if i >= n {
throw ANTLRError.unsupportedOperation(msg: "seek to index outside buffer: \(index) not in \(bufferStartIndex)..<\(bufferStartIndex + n)")
}
p = i
@ -290,7 +281,7 @@ public class UnbufferedTokenStream: TokenStream {
let start = interval.a
let stop = interval.b
if start < bufferStartIndex || stop > bufferStopIndex {
throw ANTLRError.unsupportedOperation(msg: "interval \(interval) not in token buffer window: \(bufferStartIndex)..bufferStopIndex)")
throw ANTLRError.unsupportedOperation(msg: "interval \(interval) not in token buffer window: \(bufferStartIndex)...\(bufferStopIndex)")
}
let a = start - bufferStartIndex

View File

@ -40,8 +40,7 @@ public class ATN {
///
/// For lexer ATNs, this maps the rule index to the resulting token type.
/// For parser ATNs, this maps the rule index to the generated bypass token
/// type if the
/// _org.antlr.v4.runtime.atn.ATNDeserializationOptions#isGenerateRuleBypassTransitions_
/// type if the `ATNDeserializationOptions.generateRuleBypassTransitions`
/// deserialization option was specified; otherwise, this is `null`.
///
public final var ruleToTokenType: [Int]!

View File

@ -303,7 +303,7 @@ public class ATNConfigSet: Hashable, CustomStringConvertible {
public final func getConflictingAltSubsets() -> [BitSet] {
let length = configs.count
let configToAlts = HashMap<Int, BitSet>(count: length)
var configToAlts = [Int: BitSet]()
for i in 0..<length {
let hash = configHash(configs[i].state.stateNumber, configs[i].context)
@ -318,12 +318,12 @@ public class ATNConfigSet: Hashable, CustomStringConvertible {
try! alts.set(configs[i].alt)
}
return configToAlts.values
return Array(configToAlts.values)
}
public final func getStateToAltMap() -> HashMap<ATNState, BitSet> {
public final func getStateToAltMap() -> [ATNState: BitSet] {
let length = configs.count
let m = HashMap<ATNState, BitSet>(count: length)
var m = [ATNState: BitSet]()
for i in 0..<length {
var alts: BitSet
@ -412,7 +412,7 @@ public class ATNConfigSet: Hashable, CustomStringConvertible {
public final func applyPrecedenceFilter(_ mergeCache: inout DoubleKeyMap<PredictionContext, PredictionContext, PredictionContext>?,_ parser: Parser,_ _outerContext: ParserRuleContext!) throws -> ATNConfigSet {
let configSet = ATNConfigSet(fullCtx)
let statesFromAlt1 = HashMap<Int, PredictionContext>(count: configs.count)
var statesFromAlt1 = [Int: PredictionContext]()
for config in configs {
// handle alt 1 first
if config.alt != 1 {

View File

@ -4,73 +4,7 @@
/// can be found in the LICENSE.txt file in the project root.
///
///
///
/// - Sam Harwell
///
public class ATNDeserializationOptions {
static let defaultOptions: ATNDeserializationOptions = {
let defaultOptions = ATNDeserializationOptions()
defaultOptions.makeReadOnly()
return defaultOptions
}()
private var readOnly: Bool = false
private var verifyATN: Bool
private var generateRuleBypassTransitions: Bool
public init() {
self.verifyATN = true
self.generateRuleBypassTransitions = false
}
public init(_ options: ATNDeserializationOptions) {
self.verifyATN = options.verifyATN
self.generateRuleBypassTransitions = options.generateRuleBypassTransitions
}
public static func getDefaultOptions() -> ATNDeserializationOptions {
return defaultOptions
}
public final func isReadOnly() -> Bool {
return readOnly
}
public final func makeReadOnly() {
readOnly = true
}
public final func isVerifyATN() -> Bool {
return verifyATN
}
public final func setVerifyATN(_ verifyATN: Bool) throws {
try throwIfReadOnly()
self.verifyATN = verifyATN
}
public final func isGenerateRuleBypassTransitions() -> Bool {
return generateRuleBypassTransitions
}
public final func setGenerateRuleBypassTransitions(_ generateRuleBypassTransitions: Bool) throws {
try throwIfReadOnly()
self.generateRuleBypassTransitions = generateRuleBypassTransitions
}
internal func throwIfReadOnly() throws {
if isReadOnly() {
throw ANTLRError.illegalState(msg: "This object is readonly")
}
}
public struct ATNDeserializationOptions {
public var verifyATN = true
public var generateRuleBypassTransitions = false
}

View File

@ -60,7 +60,7 @@ public class ATNDeserializer {
private let deserializationOptions: ATNDeserializationOptions
public init(_ deserializationOptions: ATNDeserializationOptions? = nil) {
self.deserializationOptions = deserializationOptions ?? ATNDeserializationOptions.getDefaultOptions()
self.deserializationOptions = deserializationOptions ?? ATNDeserializationOptions()
}
///
@ -667,13 +667,13 @@ public class ATNDeserializer {
private func finalizeATN(_ atn: ATN) throws {
markPrecedenceDecisions(atn)
if deserializationOptions.isVerifyATN() {
if deserializationOptions.verifyATN {
try verifyATN(atn)
}
if deserializationOptions.isGenerateRuleBypassTransitions() && atn.grammarType == ATNType.parser {
if deserializationOptions.generateRuleBypassTransitions && atn.grammarType == ATNType.parser {
try generateRuleBypassTransitions(atn)
if deserializationOptions.isVerifyATN() {
if deserializationOptions.verifyATN {
// reverify after modification
try verifyATN(atn)
}

View File

@ -75,11 +75,10 @@ open class ATNSimulator {
open func getCachedContext(_ context: PredictionContext) -> PredictionContext {
//TODO: synced (sharedContextCache!)
//synced (sharedContextCache!) {
let visited = HashMap<PredictionContext, PredictionContext>()
var visited = [PredictionContext: PredictionContext]()
return PredictionContext.getCachedContext(context,
sharedContextCache,
visited)
&visited)
}
public static func edgeFactory(_ atn: ATN,

View File

@ -711,7 +711,7 @@ open class LexerATNSimulator: ATNSimulator {
return dfaStatesMutex.synchronized {
if let existing = dfa.states[proposed] {
return existing!
return existing
}
let newState = proposed

View File

@ -19,10 +19,9 @@ public enum LookupDictionaryType: Int {
}
public struct LookupDictionary {
private var type: LookupDictionaryType
// private var cache: HashMap<Int, [ATNConfig]> = HashMap<Int, [ATNConfig]>()
//
private var cache: HashMap<Int, ATNConfig> = HashMap<Int, ATNConfig>()
private let type: LookupDictionaryType
private var cache = [Int: ATNConfig]()
public init(type: LookupDictionaryType = LookupDictionaryType.lookup) {
self.type = type
}
@ -48,82 +47,41 @@ public struct LookupDictionary {
return true
}
let same: Bool =
return
lhs.state.stateNumber == rhs.state.stateNumber &&
lhs.alt == rhs.alt &&
lhs.semanticContext == rhs.semanticContext
return same
} else {
}
else {
//Ordered
return lhs == rhs
}
}
// public mutating func getOrAdd(config: ATNConfig) -> ATNConfig {
//
// let h = hash(config)
//
// if let configList = cache[h] {
// let length = configList.count
// for i in 0..<length {
// if equal(configList[i], config) {
// return configList[i]
// }
// }
// cache[h]!.append(config)
// } else {
// cache[h] = [config]
// }
//
// return config
//
// }
public mutating func getOrAdd(_ config: ATNConfig) -> ATNConfig {
let h = hash(config)
if let configList = cache[h] {
return configList
} else {
}
else {
cache[h] = config
}
return config
}
public var isEmpty: Bool {
return cache.isEmpty
}
// public func contains(config: ATNConfig) -> Bool {
//
// let h = hash(config)
// if let configList = cache[h] {
// for c in configList {
// if equal(c, config) {
// return true
// }
// }
// }
//
// return false
//
// }
public func contains(_ config: ATNConfig) -> Bool {
let h = hash(config)
if let _ = cache[h] {
return true
return cache[h] != nil
}
return false
}
public mutating func removeAll() {
cache.clear()
cache.removeAll()
}
}

View File

@ -2013,7 +2013,7 @@ open class ParserATNSimulator: ATNSimulator {
return dfaStatesMutex.synchronized {
if let existing = dfa.states[D] {
return existing!
return existing
}
D.stateNumber = dfa.states.count

View File

@ -580,33 +580,29 @@ public class PredictionContext: Hashable, CustomStringConvertible {
public static func getCachedContext(
_ context: PredictionContext,
_ contextCache: PredictionContextCache,
_ visited: HashMap<PredictionContext, PredictionContext>) -> PredictionContext {
_ visited: inout [PredictionContext: PredictionContext]) -> PredictionContext {
if context.isEmpty() {
return context
}
var existing = visited[context]
if existing != nil {
return existing!
if let visitedContext = visited[context] {
return visitedContext
}
existing = contextCache.get(context)
if existing != nil {
visited[context] = existing!
return existing!
if let cachedContext = contextCache.get(context) {
visited[context] = cachedContext
return cachedContext
}
var changed = false
var parents = [PredictionContext?](repeating: nil, count: context.size())
let length = parents.count
for i in 0..<length {
//added by janyou
if context.getParent(i) == nil {
return context
}
let parent = getCachedContext(context.getParent(i)!, contextCache, visited)
//modified by janyou != !==
let parent = getCachedContext(context.getParent(i)!, contextCache, &visited)
if changed || parent !== context.getParent(i) {
if !changed {
parents = [PredictionContext?](repeating: nil, count: context.size())
@ -652,14 +648,14 @@ public class PredictionContext: Hashable, CustomStringConvertible {
// ter's recursive version of Sam's getAllNodes()
public static func getAllContextNodes(_ context: PredictionContext) -> [PredictionContext] {
var nodes = [PredictionContext]()
let visited = HashMap<PredictionContext, PredictionContext>()
getAllContextNodes_(context, &nodes, visited)
var visited = [PredictionContext: PredictionContext]()
getAllContextNodes_(context, &nodes, &visited)
return nodes
}
public static func getAllContextNodes_(_ context: PredictionContext?,
private static func getAllContextNodes_(_ context: PredictionContext?,
_ nodes: inout [PredictionContext],
_ visited: HashMap<PredictionContext, PredictionContext>) {
_ visited: inout [PredictionContext: PredictionContext]) {
guard let context = context, visited[context] == nil else {
return
}
@ -667,7 +663,7 @@ public class PredictionContext: Hashable, CustomStringConvertible {
nodes.append(context)
let length = context.size()
for i in 0..<length {
getAllContextNodes_(context.getParent(i), &nodes, visited)
getAllContextNodes_(context.getParent(i), &nodes, &visited)
}
}

View File

@ -12,11 +12,11 @@
///
public final class PredictionContextCache {
//internal final var
var cache: HashMap<PredictionContext, PredictionContext> =
HashMap<PredictionContext, PredictionContext>()
private var cache = [PredictionContext: PredictionContext]()
public init() {
}
///
/// Add a context to the cache and return it. If the context already exists,
/// return that one instead and do not add a new context to the cache.
@ -27,10 +27,9 @@ public final class PredictionContextCache {
if ctx === PredictionContext.EMPTY {
return PredictionContext.EMPTY
}
let existing: PredictionContext? = cache[ctx]
if existing != nil {
if let existing = cache[ctx] {
// print(name+" reuses "+existing);
return existing!
return existing
}
cache[ctx] = ctx
return ctx

View File

@ -493,7 +493,7 @@ public enum PredictionMode {
/// map[c._org.antlr.v4.runtime.atn.ATNConfig#state state_] U= c._org.antlr.v4.runtime.atn.ATNConfig#alt alt_
///
///
public static func getStateToAltMap(_ configs: ATNConfigSet) -> HashMap<ATNState, BitSet> {
public static func getStateToAltMap(_ configs: ATNConfigSet) -> [ATNState: BitSet] {
return configs.getStateToAltMap()
}

View File

@ -7,20 +7,17 @@
public class DFA: CustomStringConvertible {
///
/// A set of all DFA states. Use _java.util.Map_ so we can get old state back
/// (_java.util.Set_ only allows you to see if it's there).
/// A set of all DFA states.
///
public var states = [DFAState: DFAState]()
public final var states: HashMap<DFAState, DFAState?> = HashMap<DFAState, DFAState?>()
public /*volatile*/ var s0: DFAState?
public var s0: DFAState?
public final var decision: Int
///
/// From which ATN state did we create this DFA?
///
public let atnStartState: DecisionState
///

View File

@ -12,33 +12,35 @@
/// map; avoids mem creation.
///
public struct DoubleKeyMap<Key1: Hashable, Key2: Hashable, Value> {
private var data: HashMap<Key1, HashMap<Key2, Value>> = HashMap<Key1, HashMap<Key2, Value>>()
private var data = [Key1: [Key2: Value]]()
@discardableResult
public mutating func put(_ k1: Key1, _ k2: Key2, _ v: Value) -> Value? {
var data2 = data[k1]
var prev: Value? = nil
if data2 == nil {
data2 = HashMap<Key2, Value>()
} else {
prev = data2![k2]
}
data2![k2] = v
let prev: Value?
if var data2 = data[k1] {
prev = data2[k2]
data2[k2] = v
data[k1] = data2
}
else {
prev = nil
let data2 = [
k2: v
]
data[k1] = data2
}
return prev
}
public func get(_ k1: Key1, _ k2: Key2) -> Value? {
if let data2 = data[k1] {
return data2[k2]
}
return nil
}
public func get(_ k1: Key1) -> HashMap<Key2, Value>? {
public func get(_ k1: Key1) -> [Key2: Value]? {
return data[k1]
}
}

View File

@ -1,475 +0,0 @@
///
/// Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
/// Use of this file is governed by the BSD 3-clause license that
/// can be found in the LICENSE.txt file in the project root.
///
final class Entry<K: Hashable,V>: CustomStringConvertible {
final var key: K
final var value: V
final var next: Entry<K,V>!
final var hash: Int
///
/// Creates new entry.
///
init(_ h: Int, _ k: K, _ v: V, _ n: Entry<K,V>!) {
value = v
next = n
key = k
hash = h
}
final func getKey() -> K {
return key
}
final func getValue() -> V {
return value
}
final func setValue(_ newValue: V) -> V {
let oldValue: V = value
value = newValue
return oldValue
}
final var hashValue: Int {
return key.hashValue
}
var description: String { return "\(getKey())=\(getValue())" }
}
func == <K, V: Equatable>(lhs: Entry<K,V>, rhs: Entry<K,V>) -> Bool {
if lhs === rhs {
return true
}
if lhs.key == rhs.key {
if lhs.value == rhs.value {
return true
}
}
return false
}
func == <K, V: Equatable>(lhs: Entry<K,V?>, rhs: Entry<K,V?>) -> Bool {
if lhs === rhs {
return true
}
if lhs.key == rhs.key {
if lhs.value == nil && rhs.value == nil {
return true
} else if lhs.value != nil && rhs.value != nil && lhs.value! == rhs.value! {
return true
}
}
return false
}
public final class HashMap<K: Hashable,V>: Sequence
{
///
/// The default initial capacity - MUST be a power of two.
///
private let DEFAULT_INITIAL_CAPACITY: Int = 16
///
/// The maximum capacity, used if a higher value is implicitly specified
/// by either of the constructors with arguments.
/// MUST be a power of two <= 1<<30.
///
private let MAXIMUM_CAPACITY: Int = 1 << 30
///
/// The load factor used when none specified in constructor.
///
private let DEFAULT_LOAD_FACTOR: Float = 0.75
///
/// The table, resized as necessary. Length MUST Always be a power of two.
///
var table: [Entry<K,V>?]
///
/// The number of key-value mappings contained in this map.
///
var size: Int = 0
///
/// The next size value at which to resize (capacity * load factor).
/// -
///
var threshold: Int = 0
///
/// The load factor for the hash table.
///
/// -
///
var loadFactor: Float = 0
///
/// The number of times this HashMap has been structurally modified
/// Structural modifications are those that change the number of mappings in
/// the HashMap or otherwise modify its internal structure (e.g.,
/// rehash). This field is used to make iterators on Collection-views of
/// the HashMap fail-fast. (See ConcurrentModificationException).
///
var modCount: Int = 0
public init(count: Int) {
var initialCapacity = count
if (count < 0)
{
initialCapacity = DEFAULT_INITIAL_CAPACITY
}
else if (count > MAXIMUM_CAPACITY)
{
initialCapacity = MAXIMUM_CAPACITY
} else {
// Find a power of 2 >= initialCapacity
initialCapacity = 1
while initialCapacity < count
{
initialCapacity <<= 1
}
}
self.loadFactor = DEFAULT_LOAD_FACTOR
threshold = Int(Float(initialCapacity) * loadFactor)
table = [Entry<K,V>?](repeating: nil, count: initialCapacity)
}
public init() {
self.loadFactor = DEFAULT_LOAD_FACTOR
threshold = Int(Float(DEFAULT_INITIAL_CAPACITY) * DEFAULT_LOAD_FACTOR)
table = [Entry<K,V>?](repeating: nil, count: DEFAULT_INITIAL_CAPACITY)
}
static func hash(_ h: Int) -> Int {
var h = h
// This function ensures that hashCodes that differ only by
// constant multiples at each bit position have a bounded
// number of collisions (approximately 8 at default load factor).
h ^= (h >>> 20) ^ (h >>> 12)
return h ^ (h >>> 7) ^ (h >>> 4)
}
///
/// Returns index for hash code h.
///
static func indexFor(_ h: Int, _ length: Int) -> Int {
return h & (length-1)
}
///
/// Returns <tt>true</tt> if this map contains no key-value mappings.
///
/// - returns: <tt>true</tt> if this map contains no key-value mappings
///
public final var isEmpty: Bool {
return size == 0
}
public final subscript(key: K) -> V? {
get {
return get(key)
}
set {
if newValue == nil {
remove(key)
}else{
put(key,newValue!)
}
}
}
public final var count: Int {
return size
}
///
/// Returns the value to which the specified key is mapped,
/// or `null` if this map contains no mapping for the key.
///
/// More formally, if this map contains a mapping from a key
/// `k` to a value `v` such that `(key==null ? k==null :
/// key.equals(k))`, then this method returns `v`; otherwise
/// it returns `null`. (There can be at most one such mapping.)
///
/// A return value of `null` does not necessarily
/// indicate that the map contains no mapping for the key; it's also
/// possible that the map explicitly maps the key to `null`.
/// The _#containsKey containsKey_ operation may be used to
/// distinguish these two cases.
///
/// - seealso: #put(Object, Object)
///
public final func get(_ key: K) -> V? {
let hash: Int = HashMap.hash(key.hashValue)
var e = table[HashMap.indexFor(hash, table.count)]
while let eWrap = e {
if eWrap.hash == hash && eWrap.key == key
{
return eWrap.value
}
e = eWrap.next
}
return nil
}
///
/// Returns <tt>true</tt> if this map contains a mapping for the
/// specified key.
///
/// - parameter key: The key whose presence in this map is to be tested
/// - returns: <tt>true</tt> if this map contains a mapping for the specified
/// key.
///
public final func containsKey(_ key: K) -> Bool {
return getEntry(key) != nil
}
///
/// Returns the entry associated with the specified key in the
/// HashMap. Returns null if the HashMap contains no mapping
/// for the key.
///
final func getEntry(_ key: K) -> Entry<K,V>! {
let hash: Int = HashMap.hash(key.hashValue)
var e = table[HashMap.indexFor(hash, table.count)]
while let eWrap = e {
if eWrap.hash == hash && eWrap.key == key
{
return eWrap
}
e = eWrap.next
}
return nil
}
///
/// Associates the specified value with the specified key in this map.
/// If the map previously contained a mapping for the key, the old
/// value is replaced.
///
/// - parameter key: key with which the specified value is to be associated
/// - parameter value: value to be associated with the specified key
/// - returns: the previous value associated with <tt>key</tt>, or
/// <tt>null</tt> if there was no mapping for <tt>key</tt>.
/// (A <tt>null</tt> return can also indicate that the map
/// previously associated <tt>null</tt> with <tt>key</tt>.)
///
@discardableResult
public final func put(_ key: K, _ value: V) -> V? {
let hash: Int = HashMap.hash(key.hashValue)
let i: Int = HashMap.indexFor(hash, table.count)
var e = table[i]
while let eWrap = e {
if eWrap.hash == hash && eWrap.key == key {
let oldValue = eWrap.value
eWrap.value = value
return oldValue
}
e = eWrap.next
}
modCount += 1
addEntry(hash, key, value, i)
return nil
}
///
/// Adds a new entry with the specified key, value and hash code to
/// the specified bucket. It is the responsibility of this
/// method to resize the table if appropriate.
///
/// Subclass overrides this to alter the behavior of put method.
///
final func addEntry(_ hash: Int, _ key: K, _ value: V, _ bucketIndex: Int) {
let e = table[bucketIndex]
table[bucketIndex] = Entry<K,V>(hash, key, value, e)
let oldSize = size
size += 1
if oldSize >= threshold {
resize(2 * table.count)
}
}
///
/// Rehashes the contents of this map into a new array with a
/// larger capacity. This method is called automatically when the
/// number of keys in this map reaches its threshold.
///
/// If current capacity is MAXIMUM_CAPACITY, this method does not
/// resize the map, but sets threshold to Integer.MAX_VALUE.
/// This has the effect of preventing future calls.
///
/// - parameter newCapacity: the new capacity, MUST be a power of two;
/// must be greater than current capacity unless current
/// capacity is MAXIMUM_CAPACITY (in which case value
/// is irrelevant).
///
final func resize(_ newCapacity: Int) {
let oldCapacity: Int = table.count
if oldCapacity == MAXIMUM_CAPACITY {
threshold = Int.max
return
}
var newTable = [Entry<K,V>?](repeating: nil, count: newCapacity)
transfer(&newTable)
table = newTable
threshold = Int(Float(newCapacity) * loadFactor)
}
///
/// Transfers all entries from current table to newTable.
///
final func transfer(_ newTable: inout [Entry<K,V>?]) {
let newCapacity: Int = newTable.count
let length = table.count
for j in 0..<length {
if let e = table[j] {
table[j] = nil
var eOption: Entry<K,V>? = e
while let e = eOption {
let next = e.next
let i: Int = HashMap.indexFor(e.hash, newCapacity)
e.next = newTable[i]
newTable[i] = e
eOption = next
}
}
}
}
///
/// Removes all of the mappings from this map.
/// The map will be empty after this call returns.
///
public final func clear() {
modCount += 1
let length = table.count
for i in 0..<length {
table[i] = nil
}
size = 0
}
@discardableResult
public func remove(_ key: K) -> V? {
if let e = removeEntryForKey(key) {
return e.value
}
return nil
}
final func removeEntryForKey(_ key: K) -> Entry<K,V>? {
let hash: Int = HashMap.hash(Int(key.hashValue))
let i = Int(HashMap.indexFor(hash, Int(table.count)))
var prev = table[i]
var e = prev
while let eWrap = e {
let next = eWrap.next
var _: AnyObject
if eWrap.hash == hash && eWrap.key == key{
modCount += 1
size -= 1
if prev === eWrap
{table[i] = next}
else
{prev?.next = next}
return eWrap
}
prev = eWrap
e = next
}
return e
}
public final var values: [V]{
var valueList: [V] = [V]()
let length = table.count
for j in 0..<length {
if let e = table[j] {
valueList.append(e.value)
var eOption: Entry<K,V>? = e
while let e = eOption {
let next = e.next
eOption = next
if let eOption = eOption {
valueList.append(eOption.value)
}
}
}
}
return valueList
}
public final var keys: [K]{
var keyList: [K] = [K]()
let length = table.count
for j in 0..<length {
if let e = table[j] {
keyList.append(e.key)
var eOption: Entry<K,V>? = e
while let e = eOption {
let next = e.next
eOption = next
if let eOption = eOption {
keyList.append(eOption.key )
}
}
}
}
return keyList
}
public func makeIterator() -> AnyIterator<(K,V)> {
var _next: Entry<K,V>? // next entry to return
let expectedModCount: Int = modCount // For fast-fail
var index: Int = 0 // current slot
//var current: HashMapEntry<K,V> // current entry
if size > 0{ // advance to first entry
while index < table.count && _next == nil
{
_next = table[index]
index += 1
}
}
return AnyIterator {
if self.modCount != expectedModCount
{
fatalError("\(#function) ConcurrentModificationException")
}
if let e = _next {
_next = e.next
if _next == nil{
while index < self.table.count && _next == nil
{
_next = self.table[index]
index += 1
}
}
//current = e
return (e.getKey(),e.getValue())
} else {
return nil
}
}
}
}

View File

@ -26,7 +26,7 @@
<dependency>
<groupId>org.antlr</groupId>
<artifactId>ST4</artifactId>
<version>4.0.8</version>
<version>4.1-SNAPSHOT</version>
<scope>test</scope>
</dependency>
<dependency>

View File

@ -29,7 +29,7 @@
<dependency>
<groupId>org.antlr</groupId>
<artifactId>ST4</artifactId>
<version>4.0.8</version>
<version>4.1</version>
</dependency>
<dependency>
<groupId>org.abego.treelayout</groupId>
@ -44,7 +44,7 @@
<dependency>
<groupId>com.ibm.icu</groupId>
<artifactId>icu4j</artifactId>
<version>58.2</version>
<version>61.1</version>
</dependency>
</dependencies>
<build>

View File

@ -510,6 +510,7 @@ LeftRecursiveRuleFunction(currentRule, args, code, locals, ruleCtx, altLabelCtxs
size_t parentState = getState();
<parser.name>::<currentRule.ctxType> *_localctx = _tracker.createInstance\<<currentRule.ctxType>\>(_ctx, parentState<currentRule.args: {a | , <a.name>}>);
<parser.name>::<currentRule.ctxType> *previousContext = _localctx;
(void)previousContext; // Silence compiler, in case the context is not used by generated code.
size_t startState = <currentRule.startState>;
enterRecursionRule(_localctx, <currentRule.startState>, <parser.name>::Rule<currentRule.name; format = "cap">, precedence);
@ -542,7 +543,7 @@ public:
<if (ctorAttrs)><struct.name>(antlr4::ParserRuleContext *parent, size_t invokingState);<endif>
<struct.name>(antlr4::ParserRuleContext *parent, size_t invokingState<ctorAttrs: {a | , <a>}>);
<if (struct.provideCopyFrom)> <! don't need copy unless we have subclasses !>
<struct.name>() : antlr4::ParserRuleContext() { }
<struct.name>() = default;
void copyFrom(<struct.name> *context);
using antlr4::ParserRuleContext::copyFrom;
<endif>

View File

@ -236,9 +236,12 @@ public class <parser.name> extends <superClass; null="Parser"> {
<endif>
public static final int
<parser.rules:{r | RULE_<r.name> = <r.index>}; separator=", ", wrap, anchor>;
public static final String[] ruleNames = {
private static String[] makeRuleNames() {
return new String[] {
<parser.ruleNames:{r | "<r>"}; separator=", ", wrap, anchor>
};
}
public static final String[] ruleNames = makeRuleNames();
<vocabulary(parser.literalNames, parser.symbolicNames)>
@ -275,12 +278,18 @@ case <f.ruleIndex>:
>>
vocabulary(literalNames, symbolicNames) ::= <<
private static final String[] _LITERAL_NAMES = {
private static String[] makeLiteralNames() {
return new String[] {
<literalNames:{t | <t>}; null="null", separator=", ", wrap, anchor>
};
private static final String[] _SYMBOLIC_NAMES = {
}
private static final String[] _LITERAL_NAMES = makeLiteralNames();
private static String[] makeSymbolicNames() {
return new String[] {
<symbolicNames:{t | <t>}; null="null", separator=", ", wrap, anchor>
};
}
private static final String[] _SYMBOLIC_NAMES = makeSymbolicNames();
public static final Vocabulary VOCABULARY = new VocabularyImpl(_LITERAL_NAMES, _SYMBOLIC_NAMES);
/**
@ -914,9 +923,12 @@ public class <lexer.name> extends <superClass; null="Lexer"> {
<lexer.modes:{m| "<m>"}; separator=", ", wrap, anchor>
};
public static final String[] ruleNames = {
private static String[] makeRuleNames() {
return new String[] {
<lexer.ruleNames:{r | "<r>"}; separator=", ", wrap, anchor>
};
}
public static final String[] ruleNames = makeRuleNames();
<vocabulary(lexer.literalNames, lexer.symbolicNames)>

View File

@ -749,6 +749,10 @@ import sys
>>
Lexer(lexer, atn, actionFuncs, sempredFuncs, superClass) ::= <<
<if(superClass)>
from .<superClass> import <superClass>
<endif>
<atn>

View File

@ -119,7 +119,10 @@ Parser(parser, funcs, atn, sempredFuncs, superClass) ::= <<
Parser_(parser, funcs, atn, sempredFuncs, ctor, superClass) ::= <<
<if(superClass)>
if __name__ is not None and "." in __name__:
from .<superClass> import <superClass>
else:
from <superClass> import <superClass>
<endif>
<atn>
@ -756,7 +759,13 @@ import sys
>>
Lexer(lexer, atn, actionFuncs, sempredFuncs, superClass) ::= <<
<if(superClass)>
if __name__ is not None and "." in __name__:
from .<superClass> import <superClass>
else:
from <superClass> import <superClass>
<endif>
<atn>
class <lexer.name>(<if(superClass)><superClass><else>Lexer<endif>):

View File

@ -24,27 +24,28 @@ import java.util.Set;
*/
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",
"del", "delattr", "dict", "dir", "divmod",
"enumerate", "eval", "execfile",
"file", "filter", "float", "format", "frozenset",
"getattr", "globals",
"abs", "all", "and", "any", "apply", "as", "assert",
"bin", "bool", "break", "buffer", "bytearray",
"callable", "chr", "class", "classmethod", "coerce", "compile", "complex", "continue",
"def", "del", "delattr", "dict", "dir", "divmod",
"elif", "else", "enumerate", "eval", "except", "exec", "execfile",
"file", "filter", "finally", "float", "for", "format", "from", "frozenset",
"getattr", "global", "globals",
"hasattr", "hash", "help", "hex",
"id", "input", "int", "intern", "isinstance", "issubclass", "iter",
"len", "list", "locals",
"map", "max", "min", "next",
"id", "if", "import", "in", "input", "int", "intern", "is", "isinstance", "issubclass", "iter",
"lambda", "len", "list", "locals",
"map", "max", "min", "next", "not",
"memoryview",
"object", "oct", "open", "ord",
"pow", "print", "property",
"range", "raw_input", "reduce", "reload", "repr", "return", "reversed", "round",
"object", "oct", "open", "or", "ord",
"pass", "pow", "print", "property",
"raise", "range", "raw_input", "reduce", "reload", "repr", "return", "reversed", "round",
"set", "setattr", "slice", "sorted", "staticmethod", "str", "sum", "super",
"tuple", "type",
"try", "tuple", "type",
"unichr", "unicode",
"vars",
"with",
"while", "with",
"xrange",
"yield",
"zip",
"__import__",
"True", "False", "None"

View File

@ -24,26 +24,27 @@ import java.util.Set;
*/
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",
"del", "delattr", "dict", "dir", "divmod",
"enumerate", "eval", "execfile",
"file", "filter", "float", "format", "frozenset",
"getattr", "globals",
"abs", "all", "and", "any", "apply", "as", "assert",
"bin", "bool", "break", "buffer", "bytearray",
"callable", "chr", "class", "classmethod", "coerce", "compile", "complex", "continue",
"def", "del", "delattr", "dict", "dir", "divmod",
"elif", "else", "enumerate", "eval", "execfile", "except",
"file", "filter", "finally", "float", "for", "format", "from", "frozenset",
"getattr", "global", "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", "return", "reversed", "round",
"id", "if", "import", "in", "input", "int", "intern", "is", "isinstance", "issubclass", "iter",
"lambda", "len", "list", "locals",
"map", "max", "min", "memoryview",
"next", "nonlocal", "not",
"object", "oct", "open", "or", "ord",
"pass", "pow", "print", "property",
"raise", "range", "raw_input", "reduce", "reload", "repr", "return", "reversed", "round",
"set", "setattr", "slice", "sorted", "staticmethod", "str", "sum", "super",
"tuple", "type",
"try", "tuple", "type",
"unichr", "unicode",
"vars",
"with",
"with", "while",
"yield",
"zip",
"__import__",
"True", "False", "None"