use of org.antlr.v4.automata.ParserATNFactory in project antlr4 by tunnelvisionlabs.
the class BaseTest method createATN.
protected ATN createATN(Grammar g, boolean useSerializer) {
if (g.atn == null) {
semanticProcess(g);
assertEquals(0, g.tool.getNumErrors());
ParserATNFactory f;
if (g.isLexer()) {
f = new LexerATNFactory((LexerGrammar) g);
} else {
f = new ParserATNFactory(g);
}
g.atn = f.createATN();
assertEquals(0, g.tool.getNumErrors());
}
ATN atn = g.atn;
if (useSerializer) {
char[] serialized = ATNSerializer.getSerializedAsChars(atn, Arrays.asList(g.getRuleNames()));
return new ATNDeserializer().deserialize(serialized);
}
return atn;
}
use of org.antlr.v4.automata.ParserATNFactory in project antlr4 by tunnelvisionlabs.
the class Tool method processNonCombinedGrammar.
public void processNonCombinedGrammar(Grammar g, boolean gencode) {
if (g.ast == null || g.ast.hasErrors)
return;
if (internalOption_PrintGrammarTree)
System.out.println(g.ast.toStringTree());
boolean ruleFail = checkForRuleIssues(g);
if (ruleFail)
return;
int prevErrors = errMgr.getNumErrors();
// MAKE SURE GRAMMAR IS SEMANTICALLY CORRECT (FILL IN GRAMMAR OBJECT)
SemanticPipeline sem = new SemanticPipeline(g);
sem.process();
if (errMgr.getNumErrors() > prevErrors)
return;
// BUILD ATN FROM AST
ATNFactory factory;
if (g.isLexer())
factory = new LexerATNFactory((LexerGrammar) g);
else
factory = new ParserATNFactory(g);
g.atn = factory.createATN();
if (generate_ATN_dot)
generateATNs(g);
if (g.tool.getNumErrors() == 0)
generateInterpreterData(g);
// PERFORM GRAMMAR ANALYSIS ON ATN: BUILD DECISION DFAs
AnalysisPipeline anal = new AnalysisPipeline(g);
anal.process();
if (g.tool.getNumErrors() > prevErrors)
return;
// GENERATE CODE
if (gencode) {
CodeGenPipeline gen = new CodeGenPipeline(g);
gen.process();
}
}
use of org.antlr.v4.automata.ParserATNFactory in project antlr4 by antlr.
the class Tool method processNonCombinedGrammar.
public void processNonCombinedGrammar(Grammar g, boolean gencode) {
if (g.ast == null || g.ast.hasErrors)
return;
if (internalOption_PrintGrammarTree)
System.out.println(g.ast.toStringTree());
boolean ruleFail = checkForRuleIssues(g);
if (ruleFail)
return;
int prevErrors = errMgr.getNumErrors();
// MAKE SURE GRAMMAR IS SEMANTICALLY CORRECT (FILL IN GRAMMAR OBJECT)
SemanticPipeline sem = new SemanticPipeline(g);
sem.process();
String language = g.getOptionString("language");
if (!CodeGenerator.targetExists(language)) {
errMgr.toolError(ErrorType.CANNOT_CREATE_TARGET_GENERATOR, language);
return;
}
if (errMgr.getNumErrors() > prevErrors)
return;
// BUILD ATN FROM AST
ATNFactory factory;
if (g.isLexer())
factory = new LexerATNFactory((LexerGrammar) g);
else
factory = new ParserATNFactory(g);
g.atn = factory.createATN();
if (generate_ATN_dot)
generateATNs(g);
if (gencode && g.tool.getNumErrors() == 0)
generateInterpreterData(g);
// PERFORM GRAMMAR ANALYSIS ON ATN: BUILD DECISION DFAs
AnalysisPipeline anal = new AnalysisPipeline(g);
anal.process();
if (g.tool.getNumErrors() > prevErrors)
return;
// GENERATE CODE
if (gencode) {
CodeGenPipeline gen = new CodeGenPipeline(g);
gen.process();
}
}
use of org.antlr.v4.automata.ParserATNFactory in project antlr4 by antlr.
the class BaseJavaTest method testActions.
public void testActions(String templates, String actionName, String action, String expected) throws org.antlr.runtime.RecognitionException {
int lp = templates.indexOf('(');
String name = templates.substring(0, lp);
STGroup group = new STGroupString(templates);
ST st = group.getInstanceOf(name);
st.add(actionName, action);
String grammar = st.render();
ErrorQueue equeue = new ErrorQueue();
Grammar g = new Grammar(grammar, equeue);
if (g.ast != null && !g.ast.hasErrors) {
SemanticPipeline sem = new SemanticPipeline(g);
sem.process();
ATNFactory factory = new ParserATNFactory(g);
if (g.isLexer())
factory = new LexerATNFactory((LexerGrammar) g);
g.atn = factory.createATN();
AnalysisPipeline anal = new AnalysisPipeline(g);
anal.process();
CodeGenerator gen = new CodeGenerator(g);
ST outputFileST = gen.generateParser(false);
String output = outputFileST.render();
// System.out.println(output);
String b = "#" + actionName + "#";
int start = output.indexOf(b);
String e = "#end-" + actionName + "#";
int end = output.indexOf(e);
String snippet = output.substring(start + b.length(), end);
assertEquals(expected, snippet);
}
if (equeue.size() > 0) {
// System.err.println(equeue.toString());
}
}
use of org.antlr.v4.automata.ParserATNFactory in project antlr4 by antlr.
the class TestCodeGeneration method getEvalInfoForString.
public List<String> getEvalInfoForString(String grammarString, String pattern) throws RecognitionException {
ErrorQueue equeue = new ErrorQueue();
Grammar g = new Grammar(grammarString);
List<String> evals = new ArrayList<String>();
if (g.ast != null && !g.ast.hasErrors) {
SemanticPipeline sem = new SemanticPipeline(g);
sem.process();
ATNFactory factory = new ParserATNFactory(g);
if (g.isLexer())
factory = new LexerATNFactory((LexerGrammar) g);
g.atn = factory.createATN();
CodeGenerator gen = new CodeGenerator(g);
ST outputFileST = gen.generateParser();
// STViz viz = outputFileST.inspect();
// try {
// viz.waitForClose();
// }
// catch (Exception e) {
// e.printStackTrace();
// }
boolean debug = false;
DebugInterpreter interp = new DebugInterpreter(outputFileST.groupThatCreatedThisInstance, outputFileST.impl.nativeGroup.errMgr, debug);
InstanceScope scope = new InstanceScope(null, outputFileST);
StringWriter sw = new StringWriter();
AutoIndentWriter out = new AutoIndentWriter(sw);
interp.exec(out, scope);
for (String e : interp.evals) {
if (e.contains(pattern)) {
evals.add(e);
}
}
}
if (equeue.size() > 0) {
System.err.println(equeue.toString());
}
return evals;
}
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