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Example 1 with SetNonLocalAttr

use of org.antlr.v4.codegen.model.chunk.SetNonLocalAttr 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];
}
Also used : ANTLRStringStream(org.antlr.runtime.ANTLRStringStream) ActionSplitter(org.antlr.v4.parse.ActionSplitter) ActionSplitterListener(org.antlr.v4.parse.ActionSplitterListener) Token(org.antlr.runtime.Token)

Example 2 with SetNonLocalAttr

use of org.antlr.v4.codegen.model.chunk.SetNonLocalAttr in project antlr4 by antlr.

the class ActionTranslator method setNonLocalAttr.

@Override
public void setNonLocalAttr(String expr, Token x, Token y, Token rhs) {
    gen.g.tool.log("action-translator", "setNonLocalAttr " + x + "::" + y + "=" + rhs);
    Rule r = factory.getGrammar().getRule(x.getText());
    List<ActionChunk> rhsChunks = translateActionChunk(factory, rf, rhs.getText(), node);
    SetNonLocalAttr s = new SetNonLocalAttr(nodeContext, x.getText(), y.getText(), r.index, rhsChunks);
    chunks.add(s);
}
Also used : ActionChunk(org.antlr.v4.codegen.model.chunk.ActionChunk) Rule(org.antlr.v4.tool.Rule) SetNonLocalAttr(org.antlr.v4.codegen.model.chunk.SetNonLocalAttr)

Aggregations

ANTLRStringStream (org.antlr.runtime.ANTLRStringStream)1 Token (org.antlr.runtime.Token)1 ActionChunk (org.antlr.v4.codegen.model.chunk.ActionChunk)1 SetNonLocalAttr (org.antlr.v4.codegen.model.chunk.SetNonLocalAttr)1 ActionSplitter (org.antlr.v4.parse.ActionSplitter)1 ActionSplitterListener (org.antlr.v4.parse.ActionSplitterListener)1 Rule (org.antlr.v4.tool.Rule)1