Examples with Expression com.github.javaparser.ast.expr.Expression used on opensource projects

Example 16 with Expression

use of com.github.javaparser.ast.expr.Expression in project javaparser by javaparser.

the class Issue144 method issue144WithReflectionTypeSolver.

@Test
public void issue144WithReflectionTypeSolver() {
    CompilationUnit cu = parseSampleWithStandardExtension("issue144/HelloWorld");
    ClassOrInterfaceDeclaration clazz = Navigator.demandClass(cu, "HelloWorld");
    ExpressionStmt expressionStmt = (ExpressionStmt) clazz.getMethodsByName("main").get(0).getBody().get().getStatement(0);
    MethodCallExpr methodCallExpr = (MethodCallExpr) expressionStmt.getExpression();
    Expression firstParameter = methodCallExpr.getArgument(0);
    JavaParserFacade javaParserFacade = JavaParserFacade.get(new ReflectionTypeSolver(true));
    assertEquals(true, javaParserFacade.solve(firstParameter).isSolved());
}

Example 17 with Expression

use of com.github.javaparser.ast.expr.Expression in project javaparser by javaparser.

the class JavaParser method parseExpression.

/**
 * Parses the Java expression contained in a {@link String} and returns a
 * {@link Expression} that represents it.
 *
 * @param expression
 *            {@link String} containing Java expression
 * @return Expression representing the Java expression
 * @throws ParseException
 *             if the source code has parser errors
 */
public static Expression parseExpression(final String expression) {
    StringReader sr = new StringReader(expression);
    Expression e = new ASTParser(sr).Expression();
    sr.close();
    return e;
}

Example 18 with Expression

use of com.github.javaparser.ast.expr.Expression in project javaparser by javaparser.

the class NodeTest method typeOnlyFindAllMatchesSubclasses.

@Test
public void typeOnlyFindAllMatchesSubclasses() {
    Expression e = parseExpression("1+2+3");
    List<Node> ints = e.findAll(Node.class);
    assertEquals("[1 + 2 + 3, 1 + 2, 1, 2, 3]", ints.toString());
}

Example 19 with Expression

use of com.github.javaparser.ast.expr.Expression in project javaparser by javaparser.

the class NodeTest method stream.

@Test
public void stream() {
    Expression e = parseExpression("1+2+3");
    List<IntegerLiteralExpr> ints = e.stream().filter(n -> n instanceof IntegerLiteralExpr).map(IntegerLiteralExpr.class::cast).filter(i -> i.asInt() > 1).collect(Collectors.toList());
    assertEquals("[2, 3]", ints.toString());
}

Example 20 with Expression

use of com.github.javaparser.ast.expr.Expression in project javaparser by javaparser.

the class NodeTest method classSpecificWalk.

@Test
public void classSpecificWalk() {
    Expression e = parseExpression("1+1");
    StringBuilder b = new StringBuilder();
    e.walk(IntegerLiteralExpr.class, n -> b.append(n.toString()));
    assertEquals("11", b.toString());
}