Examples with Expression com.googlecode.aviator.Expression used on opensource projects

Example 26 with Expression

use of com.googlecode.aviator.Expression in project aviatorscript by killme2008.

the class TestScripts method testLib.

public Object testLib(final String name, final Object... args) {
    try {
        System.out.println("Testing lib " + name + " with args: " + Arrays.toString(args));
        final String file = TestScripts.class.getResource("/lib/test_" + name + ".av").getFile();
        this.instance.validate(IoModule.slurp(file));
        Expression exp = this.instance.compileScript(file, true);
        return exp.execute(AviatorEvaluator.newEnv(args));
    } catch (Throwable t) {
        Reflector.sneakyThrow(t);
    }
    return null;
}

Example 27 with Expression

use of com.googlecode.aviator.Expression in project aviatorscript by killme2008.

the class FunctionTest method testGetVariableNamesComplex.

@Test
public void testGetVariableNamesComplex() {
    // lambda
    Expression exp = this.instance.compile("a = 1; add = lambda(x) -> x + a end; add(b)");
    List<String> vars = exp.getVariableNames();
    System.out.println(vars);
    assertEquals(1, vars.size());
    assertEquals("b", vars.get(0));
    // lambda closure over
    exp = this.instance.compile("add = lambda(x) -> x + a end; add(b)");
    vars = exp.getVariableNames();
    assertEquals(2, vars.size());
    assertEquals("a", vars.get(0));
    assertEquals("b", vars.get(1));
    // if.. else
    exp = this.instance.compile("b=2; if(a > 1) { a + b } elsif( a > 10) { return a + c; } else { return 10; }");
    vars = exp.getVariableNames();
    assertEquals(2, vars.size());
    assertEquals("a", vars.get(0));
    assertEquals("c", vars.get(1));
    // for..loop
    exp = this.instance.compile("let list = seq.list(1, 2, 3); for x in list { sum = sum + x }; return sum;");
    vars = exp.getVariableNames();
    assertEquals(1, vars.size());
    assertEquals("sum", vars.get(0));
    // let statement in block
    exp = this.instance.compile("{let a = 1; let b = b + 1; p(a+b);} c-a");
    vars = exp.getVariableNames();
    assertEquals(3, vars.size());
    assertEquals("b", vars.get(0));
    assertEquals("c", vars.get(1));
    assertEquals("a", vars.get(2));
    // redfine variable
    exp = this.instance.compile("{let a = 1; let b = 2; let b = b + 1; p(a+b);} c-a");
    vars = exp.getVariableNames();
    assertEquals(2, vars.size());
    assertEquals("c", vars.get(0));
    assertEquals("a", vars.get(1));
    // high-order function
    exp = this.instance.compile("map(list, lambda(v) -> v + u end)");
    vars = exp.getVariableNames();
    assertEquals(2, vars.size());
    assertEquals("list", vars.get(0));
    assertEquals("u", vars.get(1));
    // a complex script
    exp = this.instance.compile("let n = 0;  let index =0 ; " + "for i in a {" + "let t = string_to_date(i, 'yyyyMMdd'); " + "if t == nil { continue; } " + "let m = date.month(b, i); " + "if c[index] == '03' && m <= 12 {" + " n = n + 1; " + "}" + "index = index + 1;" + "  } return n;");
    vars = exp.getVariableNames();
    assertEquals(3, vars.size());
    assertEquals("a", vars.get(0));
    assertEquals("b", vars.get(1));
    assertEquals("c", vars.get(2));
    exp = this.instance.compile("a = seq.map(); add = lambda() -> a.b + a.c end; add()");
    vars = exp.getVariableNames();
    assertEquals(0, vars.size());
    vars = exp.getVariableFullNames();
    assertEquals(2, vars.size());
    assertEquals("a.b", vars.get(0));
    assertEquals("a.c", vars.get(1));
    exp = this.instance.compile("a = seq.map(); a.c = 2; add = lambda() -> a.b + a.c end; add()");
    vars = exp.getVariableNames();
    assertEquals(0, vars.size());
    vars = exp.getVariableFullNames();
    assertEquals(1, vars.size());
    assertEquals("a.b", vars.get(0));
}

Example 28 with Expression

use of com.googlecode.aviator.Expression in project aviatorscript by killme2008.

the class FunctionTest method testIssue431.

@Test
public void testIssue431() {
    Expression expr = this.instance.compile("{\n" + "    let itemv1 = seq.get(info.value,index);\n" + "    print( itemv1.name )\n" + "}");
    List<String> vars = expr.getVariableNames();
    assertEquals(2, vars.size());
    assertEquals("info", vars.get(0));
    assertEquals("index", vars.get(1));
}

Example 29 with Expression

use of com.googlecode.aviator.Expression in project aviatorscript by killme2008.

the class FunctionTest method testGetVariableNames.

@Test
public void testGetVariableNames() {
    Expression expression = this.instance.compile("b+a", true);
    assertNotNull(expression);
    List<String> vars = expression.getVariableNames();
    assertNotNull(vars);
    assertEquals(2, vars.size());
    assertTrue(vars.contains("a"));
    assertTrue(vars.contains("b"));
    assertEquals("b", vars.get(0));
    assertEquals("a", vars.get(1));
    expression = this.instance.compile("b==a || d>3 || e+c*d/2 <= 1000", true);
    assertNotNull(expression);
    vars = expression.getVariableNames();
    assertNotNull(vars);
    assertEquals(5, vars.size());
    assertTrue(vars.contains("a"));
    assertTrue(vars.contains("b"));
    assertTrue(vars.contains("c"));
    assertTrue(vars.contains("d"));
    assertTrue(vars.contains("e"));
    assertEquals("b", vars.get(0));
    assertEquals("a", vars.get(1));
    assertEquals("d", vars.get(2));
    assertEquals("e", vars.get(3));
    assertEquals("c", vars.get(4));
    // Test map or list as variable
    expression = this.instance.compile("map.a>10 && list[0][1]<3 && bean.c == bean.x || bean.d == y", true);
    assertNotNull(expression);
    vars = expression.getVariableNames();
    assertEquals(4, vars.size());
    assertTrue(vars.contains("map"));
    assertTrue(vars.contains("list"));
    assertTrue(vars.contains("bean"));
    assertTrue(vars.contains("y"));
    assertEquals("map", vars.get(0));
    assertEquals("list", vars.get(1));
    assertEquals("bean", vars.get(2));
    assertEquals("y", vars.get(3));
}

Example 30 with Expression

use of com.googlecode.aviator.Expression in project aviatorscript by killme2008.

the class GrammarUnitTest method testIssue186.

@Test
public void testIssue186() {
    Expression exp = this.instance.compile("1==1");
    assertTrue(exp.getVariableFullNames().isEmpty());
    assertTrue(exp.getVariableNames().isEmpty());
    exp = this.instance.compile("a!=nil");
    List<String> vars = exp.getVariableFullNames();
    assertEquals(1, vars.size());
    assertTrue(vars.contains("a"));
    vars = exp.getVariableNames();
    assertEquals(1, vars.size());
    assertTrue(vars.contains("a"));
}