Examples with CommonTokenStream org.antlr.runtime.CommonTokenStream used on opensource projects

Example 91 with CommonTokenStream

use of org.antlr.runtime.CommonTokenStream in project smali by JesusFreke.

the class LexerTest method runTest.

public void runTest(String test, boolean discardHiddenTokens, int apiLevel) {
    String smaliFile = String.format("LexerTest%s%s.smali", File.separatorChar, test);
    String tokensFile = String.format("LexerTest%s%s.tokens", File.separatorChar, test);
    org.jf.smali.expectedTokensTestGrammarLexer expectedTokensLexer = null;
    try {
        expectedTokensLexer = new org.jf.smali.expectedTokensTestGrammarLexer(new ANTLRInputStream(LexerTest.class.getClassLoader().getResourceAsStream(tokensFile)));
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    }
    CommonTokenStream expectedTokensStream = new CommonTokenStream(expectedTokensLexer);
    org.jf.smali.expectedTokensTestGrammarParser expectedTokensParser = new org.jf.smali.expectedTokensTestGrammarParser(expectedTokensStream);
    try {
        expectedTokensParser.top();
    } catch (RecognitionException ex) {
        throw new RuntimeException(ex);
    }
    List<ExpectedToken> expectedTokens = expectedTokensParser.getExpectedTokens();
    InputStream smaliStream = LexerTest.class.getClassLoader().getResourceAsStream(smaliFile);
    if (smaliStream == null) {
        Assert.fail("Could not load " + smaliFile);
    }
    smaliFlexLexer lexer = new smaliFlexLexer(new InputStreamReader(smaliStream), apiLevel);
    lexer.setSourceFile(new File(test + ".smali"));
    lexer.setSuppressErrors(true);
    CommonTokenStream tokenStream = new CommonTokenStream(lexer);
    tokenStream.fill();
    List tokens = tokenStream.getTokens();
    int expectedTokenIndex = 0;
    CommonToken token;
    for (int i = 0; i < tokens.size() - 1; i++) {
        token = (CommonToken) tokens.get(i);
        if (discardHiddenTokens && token.getChannel() == smaliParser.HIDDEN) {
            continue;
        }
        if (expectedTokenIndex >= expectedTokens.size()) {
            Assert.fail("Too many tokens");
        }
        if (token.getType() == smaliParser.INVALID_TOKEN) {
            Assert.assertTrue("Encountered an INVALID_TOKEN not on the error channel", token.getChannel() == smaliParser.ERROR_CHANNEL);
        }
        ExpectedToken expectedToken = expectedTokens.get(expectedTokenIndex++);
        if (!tokenTypesByName.containsKey(expectedToken.tokenName)) {
            Assert.fail("Unknown token: " + expectedToken.tokenName);
        }
        int expectedTokenType = tokenTypesByName.get(expectedToken.tokenName);
        if (token.getType() != expectedTokenType) {
            Assert.fail(String.format("Invalid token at index %d. Expecting %s, got %s(%s)", expectedTokenIndex - 1, expectedToken.tokenName, getTokenName(token.getType()), token.getText()));
        }
        if (expectedToken.tokenText != null) {
            if (!expectedToken.tokenText.equals(token.getText())) {
                Assert.fail(String.format("Invalid token text at index %d. Expecting text \"%s\", got \"%s\"", expectedTokenIndex - 1, expectedToken.tokenText, token.getText()));
            }
        }
    }
    if (expectedTokenIndex < expectedTokens.size()) {
        Assert.fail(String.format("Not enough tokens. Expecting %d tokens, but got %d", expectedTokens.size(), expectedTokenIndex));
    }
}

Example 92 with CommonTokenStream

use of org.antlr.runtime.CommonTokenStream in project ceylon-compiler by ceylon.

the class IssuesTests_1500_1999 method benchmarkParse.

private void benchmarkParse(String file) throws Exception {
    String readSource = readFile(new File(getPackagePath(), file));
    String source = readSource.toString();
    char[] chars = source.toCharArray();
    LineMap map = Position.makeLineMap(chars, chars.length, false);
    System.err.println(map.hashCode());
    ANTLRStringStream input = new ANTLRStringStream(source);
    CeylonLexer lexer = new CeylonLexer(input);
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    CeylonParser parser = new CeylonParser(tokens);
// CompilationUnit cu = parser.compilationUnit();
// System.err.println(cu.hashCode());
}

Example 93 with CommonTokenStream

use of org.antlr.runtime.CommonTokenStream in project alfresco-remote-api by Alfresco.

the class WhereCompiler method compileWhereClause.

public static CommonTree compileWhereClause(String expression) throws RecognitionException {
    // lexer splits input into tokens
    ANTLRStringStream input = new ANTLRStringStream(expression);
    TokenStream tokens = new CommonTokenStream(new WhereClauseLexer(input));
    // parser generates abstract syntax tree
    WhereClauseParser parser = new WhereClauseParser(tokens);
    WhereClauseParser.whereclause_return ret = parser.whereclause();
    // acquire parse result
    CommonTree ast = (CommonTree) ret.getTree();
    if (logger.isDebugEnabled())
        print(ast, 0);
    return ast;
}