Examples with PredictionContext org.antlr.v4.runtime.atn.PredictionContext used on opensource projects

Example 26 with PredictionContext

use of org.antlr.v4.runtime.atn.PredictionContext in project antlr4 by antlr.

the class TestGraphNodes method test_ax$_a$_fullctx.

@Test
public void test_ax$_a$_fullctx() {
    PredictionContext x = x();
    PredictionContext a1 = createSingleton(x, 1);
    PredictionContext a2 = a();
    PredictionContext r = PredictionContext.merge(a1, a2, fullCtx(), null);
    //		System.out.println(toDOTString(r, fullCtx()));
    String expecting = "digraph G {\n" + "rankdir=LR;\n" + "  s0[label=\"0\"];\n" + "  s1[shape=record, label=\"<p0>|<p1>$\"];\n" + "  s2[label=\"$\"];\n" + "  s0->s1[label=\"1\"];\n" + "  s1:p0->s2[label=\"9\"];\n" + "}\n";
    assertEquals(expecting, toDOTString(r, fullCtx()));
}

Example 27 with PredictionContext

use of org.antlr.v4.runtime.atn.PredictionContext in project antlr4 by antlr.

the class TestGraphNodes method test_Aa_Abc.

@Test
public void test_Aa_Abc() {
    // a + b,c
    SingletonPredictionContext a = a();
    SingletonPredictionContext b = b();
    SingletonPredictionContext c = c();
    ArrayPredictionContext A1 = array(a);
    ArrayPredictionContext A2 = array(b, c);
    PredictionContext r = PredictionContext.merge(A1, A2, rootIsWildcard(), null);
    //		System.out.println(toDOTString(r, rootIsWildcard()));
    String expecting = "digraph G {\n" + "rankdir=LR;\n" + "  s0[shape=record, label=\"<p0>|<p1>|<p2>\"];\n" + "  s1[label=\"*\"];\n" + "  s0:p0->s1[label=\"1\"];\n" + "  s0:p1->s1[label=\"2\"];\n" + "  s0:p2->s1[label=\"3\"];\n" + "}\n";
    assertEquals(expecting, toDOTString(r, rootIsWildcard()));
}

Example 28 with PredictionContext

use of org.antlr.v4.runtime.atn.PredictionContext in project antlr4 by antlr.

the class TestGraphNodes method test_aa$_a$_$_fullCtx.

@Test
public void test_aa$_a$_$_fullCtx() {
    PredictionContext empty = PredictionContext.EMPTY;
    PredictionContext child1 = createSingleton(empty, 8);
    PredictionContext right = PredictionContext.merge(empty, child1, false, null);
    PredictionContext left = createSingleton(right, 8);
    PredictionContext merged = PredictionContext.merge(left, right, false, null);
    String actual = toDOTString(merged, false);
    //		System.out.println(actual);
    String expecting = "digraph G {\n" + "rankdir=LR;\n" + "  s0[shape=record, label=\"<p0>|<p1>$\"];\n" + "  s1[shape=record, label=\"<p0>|<p1>$\"];\n" + "  s2[label=\"$\"];\n" + "  s0:p0->s1[label=\"8\"];\n" + "  s1:p0->s2[label=\"8\"];\n" + "}\n";
    assertEquals(expecting, actual);
}

Example 29 with PredictionContext

use of org.antlr.v4.runtime.atn.PredictionContext in project antlr4 by antlr.

the class TestGraphNodes method test_Aaubv_Abvdx.

@Test
public void test_Aaubv_Abvdx() {
    // au,bv + bv,dx -> [a,b,d]->[u,v,x]
    SingletonPredictionContext a = createSingleton(u(), 1);
    SingletonPredictionContext b1 = createSingleton(v(), 2);
    SingletonPredictionContext b2 = createSingleton(v(), 2);
    SingletonPredictionContext d = createSingleton(x(), 4);
    ArrayPredictionContext A1 = array(a, b1);
    ArrayPredictionContext A2 = array(b2, d);
    PredictionContext r = PredictionContext.merge(A1, A2, rootIsWildcard(), null);
    //		System.out.println(toDOTString(r, rootIsWildcard()));
    String expecting = "digraph G {\n" + "rankdir=LR;\n" + "  s0[shape=record, label=\"<p0>|<p1>|<p2>\"];\n" + "  s3[label=\"3\"];\n" + "  s4[label=\"*\"];\n" + "  s2[label=\"2\"];\n" + "  s1[label=\"1\"];\n" + "  s0:p0->s1[label=\"1\"];\n" + "  s0:p1->s2[label=\"2\"];\n" + "  s0:p2->s3[label=\"4\"];\n" + "  s3->s4[label=\"9\"];\n" + "  s2->s4[label=\"7\"];\n" + "  s1->s4[label=\"6\"];\n" + "}\n";
    assertEquals(expecting, toDOTString(r, rootIsWildcard()));
}

Example 30 with PredictionContext

use of org.antlr.v4.runtime.atn.PredictionContext in project antlr4 by antlr.

the class TestGraphNodes method test_Aab_Aa.

@Test
public void test_Aab_Aa() {
    // a,b + a
    ArrayPredictionContext A1 = array(a(), b());
    ArrayPredictionContext A2 = array(a());
    PredictionContext r = PredictionContext.merge(A1, A2, rootIsWildcard(), null);
    //		System.out.println(toDOTString(r, rootIsWildcard()));
    String expecting = "digraph G {\n" + "rankdir=LR;\n" + "  s0[shape=record, label=\"<p0>|<p1>\"];\n" + "  s1[label=\"*\"];\n" + "  s0:p0->s1[label=\"1\"];\n" + "  s0:p1->s1[label=\"2\"];\n" + "}\n";
    assertEquals(expecting, toDOTString(r, rootIsWildcard()));
}