Examples with ParserContext org.mvel2.ParserContext used on opensource projects

Example 46 with ParserContext

use of org.mvel2.ParserContext in project mvel by mikebrock.

the class CoreConfidenceTests method testStringConcatenation.

public void testStringConcatenation() {
    // debugging MVEL code, it seems that MVEL 'thinks' that the result of the expression:
    // "Drop +5%: "+$sb+" avg: $"+$av+" price: $"+$pr
    // is a double, and as so, he looks for a method:
    // Services.log( double );
    // but finds only:
    // Services.log( String );
    // raising the error.
    String ex = "services.log((String) \"Drop +5%: \"+$sb+\" avg: $\"+$av+\" price: $\"+$pr );";
    ParserContext ctx = new ParserContext();
    ctx.setStrongTyping(true);
    ctx.addInput("$sb", String.class);
    ctx.addInput("$av", double.class);
    ctx.addInput("$pr", double.class);
    ctx.addInput("services", Services.class);
    try {
        ExpressionCompiler compiler = new ExpressionCompiler(ex);
        compiler.compile(ctx);
    } catch (Throwable e) {
        e.printStackTrace();
        fail("Should not raise exception: " + e.getMessage());
    }
}

Example 47 with ParserContext

use of org.mvel2.ParserContext in project mvel by mikebrock.

the class ArithmeticTests method testJIRA161.

public void testJIRA161() {
    Serializable s = MVEL.compileExpression("1==-(-1)", ParserContext.create().stronglyTyped());
    assertEquals(1 == -(-1), MVEL.executeExpression(s));
    ParserContext ctx = new ParserContext();
    ctx.setStrongTyping(true);
    CompiledExpression compiledExpression = new ExpressionCompiler("1==-(-1)").compile(ctx);
    assertEquals(1 == -(-1), MVEL.executeExpression(compiledExpression));
}

Example 48 with ParserContext

use of org.mvel2.ParserContext in project mvel by mikebrock.

the class ArithmeticTests method testStrongTypingModeComparison.

public void testStrongTypingModeComparison() {
    ParserContext parserContext = new ParserContext();
    parserContext.setStrongTyping(true);
    parserContext.addInput("a", Long.class);
    CompiledExpression compiledExpression = new ExpressionCompiler("a==0").compile(parserContext);
    HashMap<String, Object> variables = new HashMap<String, Object>();
    variables.put("a", 0l);
    MVEL.executeExpression(compiledExpression, variables);
}

Example 49 with ParserContext

use of org.mvel2.ParserContext in project mvel by mikebrock.

the class MacroProcessorTest method testMacroSupport.

public void testMacroSupport() {
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("foo", new Foo());
    Map<String, Interceptor> interceptors = new HashMap<String, Interceptor>();
    Map<String, Macro> macros = new HashMap<String, Macro>();
    interceptors.put("Modify", new Interceptor() {

        public int doBefore(ASTNode node, VariableResolverFactory factory) {
            ((WithNode) node).getNestedStatement().getValue(null, factory);
            factory.createVariable("mod", "FOOBAR!");
            return 0;
        }

        public int doAfter(Object val, ASTNode node, VariableResolverFactory factory) {
            return 0;
        }
    });
    macros.put("modify", new Macro() {

        public String doMacro() {
            return "@Modify with";
        }
    });
    ExpressionCompiler compiler = new ExpressionCompiler(parseMacros("modify (foo) { aValue = 'poo = poo', bValue = 'poo, poo' }; mod", macros));
    ParserContext ctx = new ParserContext(null, interceptors, null);
    ctx.setSourceFile("test.mv");
    ctx.setDebugSymbols(true);
    assertEquals("FOOBAR!", executeExpression(compiler.compile(ctx), null, vars));
}

Example 50 with ParserContext

use of org.mvel2.ParserContext in project mvel by mikebrock.

the class MacroProcessorTest method testMacroSupportWithStrings.

public void testMacroSupportWithStrings() {
    Map<String, Object> vars = new HashMap<String, Object>();
    Foo foo = new Foo();
    vars.put("foo", foo);
    Map<String, Macro> macros = new HashMap<String, Macro>();
    macros.put("modify", new Macro() {

        public String doMacro() {
            return "drools.modify";
        }
    });
    assertEquals("", foo.aValue);
    ExpressionCompiler compiler = new ExpressionCompiler(parseMacros("\"This is an modify()\"", macros));
    ParserContext ctx = new ParserContext(null, null, null);
    ctx.setSourceFile("test.mv");
    ctx.setDebugSymbols(true);
    assertEquals("This is an modify()", executeExpression(compiler.compile(ctx), null, vars));
}