Examples with CompilationUnit japa.parser.ast.CompilationUnit used on opensource projects

Example 16 with CompilationUnit

use of japa.parser.ast.CompilationUnit in project gwt-test-utils by gwt-test-utils.

the class JavaFileParanamer method visitJavaFile.

private void visitJavaFile(Class<?> declaringClass) throws ParseException, IOException {
    InputStream is = getJavaFile(declaringClass);
    if (is == null) {
        return;
    }
    CompilationUnit cu;
    try {
        // parse the file
        cu = JavaParser.parse(is);
    } finally {
        is.close();
    }
    MethodParametersVisitor visitor = new MethodParametersVisitor();
    cu.accept(visitor, cache);
}

Example 17 with CompilationUnit

use of japa.parser.ast.CompilationUnit in project gwt-test-utils by gwt-test-utils.

the class JavaFileParanamer method visitJavaFileToPopulateCache.

private void visitJavaFileToPopulateCache(AccessibleObject methodOrConstructor) {
    InputStream is = null;
    try {
        is = javaFileFinder.openJavaFile(methodOrConstructor);
        if (is != null) {
            // visit .java file using our custom GenericVisitorAdapter
            CompilationUnit cu = JavaParser.parse(is);
            MethodParametersVisitor visitor = new MethodParametersVisitor();
            cu.accept(visitor, cache);
        }
    } catch (Exception e) {
        throw new ParameterNamesNotFoundException("Error while trying to read parameter names from the Java file which contains the declaration of " + methodOrConstructor.toString(), e);
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
            // should never happen
            }
        }
    }
}

Example 18 with CompilationUnit

use of japa.parser.ast.CompilationUnit in project japid42 by branaway.

the class JavaSyntaxTool method isValidMethDecl.

/**
	 * verify that line is a valid method declaration part, excluding method body and the {} 
	 * @param line: something like foo(int a, String b)
	 */
public static void isValidMethDecl(String line) {
    final String classTempForMeth = "class T {  %s{} }";
    String classString = String.format(classTempForMeth, line);
    try {
        CompilationUnit cu = parse(classString);
        VoidVisitorAdapter visitor = new VoidVisitorAdapter() {
        };
        cu.accept(visitor, null);
    } catch (ParseException e) {
        throw new RuntimeException("the line does not seem to be a valid method declaration: " + line + ". Was expecting something like foo(int a, String b).");
    }
}

Example 19 with CompilationUnit

use of japa.parser.ast.CompilationUnit in project japid42 by branaway.

the class JavaSyntaxTool method parseNamedArgs.

/**
	 * 
	 * @param line
	 * @return list of named args if all the args are named; empty list if none
	 *         is named; or an exception is thrown if the arg list is not valid
	 *         or named and un-named are mixed
	 * 
	 */
public static List<NamedArg> parseNamedArgs(String line) {
    final List<NamedArg> ret = new ArrayList<NamedArg>();
    if (line == null || line.trim().length() == 0)
        return ret;
    line = line.trim();
    //		if (line.startsWith("(")) {
    //			if (line.endsWith(")"))
    //				line = line.substring(1, line.length() - 1);
    //			else
    //				throw new RuntimeException("no closing ')' in arg expression: "
    //						+ line);
    //		}
    String cl = String.format(classTempForArgs, line);
    final String finalLine = line;
    try {
        CompilationUnit cu = parse(cl);
        VoidVisitorAdapter visitor = new VoidVisitorAdapter() {

            boolean hasNamed = false;

            boolean hasUnNamed = false;

            @Override
            public void visit(MethodCallExpr n, Object arg) {
                List<Expression> args = n.getArgs();
                // api issue: args can be null in case of empty arg list
                if (args != null)
                    for (Expression expr : args) {
                        if (expr instanceof AssignExpr) {
                            if (hasUnNamed)
                                throw new RuntimeException("the line has mixed named and un-named arg list. It's not valid in Japid tag invocation. It must be all-or-none.: " + finalLine);
                            hasNamed = true;
                            AssignExpr ae = (AssignExpr) expr;
                            NamedArg na = new NamedArg(ae.getTarget(), ae.getValue());
                            ret.add(na);
                        } else {
                            if (hasNamed)
                                throw new RuntimeException("the line has mixed named and un-named arg list. It's not valid in Japid tag invocation. It must be all-or-none.: " + finalLine);
                            hasUnNamed = true;
                        }
                    }
            }
        };
        cu.accept(visitor, null);
    } catch (ParseException e) {
        throw new RuntimeException("the line does not seem to be a valid arg list: " + line + ". ");
    }
    return ret;
}

Example 20 with CompilationUnit

use of japa.parser.ast.CompilationUnit in project japid42 by branaway.

the class JavaSyntaxTool method isOpenIf.

public static boolean isOpenIf(String part) {
    part = part.trim();
    if (part.endsWith("{"))
        part = part.substring(0, part.length() - 1);
    String classString = String.format(IF_PREDICATE_OPEN, part);
    try {
        CompilationUnit cu = parse(classString);
        return true;
    } catch (ParseException e) {
        return false;
    }
}