Examples with BlankActionSplitterListener org.antlr.v4.semantics.BlankActionSplitterListener used on opensource projects

Example 1 with BlankActionSplitterListener

use of org.antlr.v4.semantics.BlankActionSplitterListener in project antlr4 by antlr.

the class TestActionSplitter method getActionChunks.

public static List<String> getActionChunks(String a) {
    List<String> chunks = new ArrayList<String>();
    ActionSplitter splitter = new ActionSplitter(new ANTLRStringStream(a), new BlankActionSplitterListener());
    Token t = splitter.nextToken();
    while (t.getType() != Token.EOF) {
        chunks.add("'" + t.getText() + "'<" + t.getType() + ">");
        t = splitter.nextToken();
    }
    return chunks;
}

Example 2 with BlankActionSplitterListener

use of org.antlr.v4.semantics.BlankActionSplitterListener in project antlr4 by antlr.

the class UseDefAnalyzer method actionIsContextDependent.

public static boolean actionIsContextDependent(ActionAST actionAST) {
    ANTLRStringStream in = new ANTLRStringStream(actionAST.token.getText());
    in.setLine(actionAST.token.getLine());
    in.setCharPositionInLine(actionAST.token.getCharPositionInLine());
    // can't be simple bool with anon class
    final boolean[] dependent = new boolean[] { false };
    ActionSplitterListener listener = new BlankActionSplitterListener() {

        @Override
        public void nonLocalAttr(String expr, Token x, Token y) {
            dependent[0] = true;
        }

        @Override
        public void qualifiedAttr(String expr, Token x, Token y) {
            dependent[0] = true;
        }

        @Override
        public void setAttr(String expr, Token x, Token rhs) {
            dependent[0] = true;
        }

        @Override
        public void setExprAttribute(String expr) {
            dependent[0] = true;
        }

        @Override
        public void setNonLocalAttr(String expr, Token x, Token y, Token rhs) {
            dependent[0] = true;
        }

        @Override
        public void attr(String expr, Token x) {
            dependent[0] = true;
        }
    };
    ActionSplitter splitter = new ActionSplitter(in, listener);
    // forces eval, triggers listener methods
    splitter.getActionTokens();
    return dependent[0];
}