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

Example 6 with SingletonPredictionContext

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

the class TestGraphNodes method test_Aax_Aay.

@Test
public void test_Aax_Aay() {
    // ax + ay -> merged singleton a, array parent
    SingletonPredictionContext a1 = createSingleton(x(), 1);
    SingletonPredictionContext a2 = createSingleton(y(), 1);
    ArrayPredictionContext A1 = array(a1);
    ArrayPredictionContext A2 = array(a2);
    PredictionContext r = PredictionContext.merge(A1, A2, rootIsWildcard(), null);
    //		System.out.println(toDOTString(r, rootIsWildcard()));
    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" + "  s1:p1->s2[label=\"10\"];\n" + "}\n";
    assertEquals(expecting, toDOTString(r, rootIsWildcard()));
}

Example 7 with SingletonPredictionContext

use of org.antlr.v4.runtime.atn.SingletonPredictionContext 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 8 with SingletonPredictionContext

use of org.antlr.v4.runtime.atn.SingletonPredictionContext 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 9 with SingletonPredictionContext

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

the class TestGraphNodes method test_Aaubv_Abvdu.

@Test
public void test_Aaubv_Abvdu() {
    // au,bv + bv,du -> [a,b,d]->[u,v,u]; u,v shared
    SingletonPredictionContext a = createSingleton(u(), 1);
    SingletonPredictionContext b1 = createSingleton(v(), 2);
    SingletonPredictionContext b2 = createSingleton(v(), 2);
    SingletonPredictionContext d = createSingleton(u(), 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" + "  s2[label=\"2\"];\n" + "  s3[label=\"*\"];\n" + "  s1[label=\"1\"];\n" + "  s0:p0->s1[label=\"1\"];\n" + "  s0:p1->s2[label=\"2\"];\n" + "  s0:p2->s1[label=\"4\"];\n" + "  s2->s3[label=\"7\"];\n" + "  s1->s3[label=\"6\"];\n" + "}\n";
    assertEquals(expecting, toDOTString(r, rootIsWildcard()));
}

Example 10 with SingletonPredictionContext

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

the class TestGraphNodes method test_Aac_Ab.

@Test
public void test_Aac_Ab() {
    // a,c + b
    SingletonPredictionContext a = a();
    SingletonPredictionContext b = b();
    SingletonPredictionContext c = c();
    ArrayPredictionContext A1 = array(a, c);
    ArrayPredictionContext A2 = array(b);
    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()));
}