Examples with ExpressionCompiler org.mvel2.compiler.ExpressionCompiler used on opensource projects

Example 76 with ExpressionCompiler

use of org.mvel2.compiler.ExpressionCompiler in project mvel by mikebrock.

the class DebuggerTests method testBreakpoints.

public void testBreakpoints() {
    ExpressionCompiler compiler = new ExpressionCompiler("a = 5;\nb = 5;\n\nif (a == b) {\n\nSystem.out.println('Good');\nreturn a + b;\n}\n");
    System.out.println("-------\n" + compiler.getExpression() + "\n-------\n");
    ParserContext ctx = new ParserContext();
    ctx.setSourceFile("test.mv");
    ctx.setDebugSymbols(true);
    CompiledExpression compiled = compiler.compile(ctx);
    MVELRuntime.registerBreakpoint("test.mv", 7);
    final Set<Integer> breaked = new HashSet<Integer>();
    Debugger testDebugger = new Debugger() {

        public int onBreak(Frame frame) {
            System.out.println("Breakpoint [source:" + frame.getSourceName() + "; line:" + frame.getLineNumber() + "]");
            breaked.add(frame.getLineNumber());
            return 0;
        }
    };
    MVELRuntime.setThreadDebugger(testDebugger);
    assertEquals(10, MVEL.executeDebugger(compiled, null, new MapVariableResolverFactory(createTestMap())));
    assertTrue("did not break at line 7", breaked.contains(7));
}

Example 77 with ExpressionCompiler

use of org.mvel2.compiler.ExpressionCompiler in project mvel by mikebrock.

the class DebuggerTests method testDebugSymbolsWithUnixLinedEndings.

public void testDebugSymbolsWithUnixLinedEndings() throws Exception {
    String expr = "   System.out.println( \"a1\" );\n" + "   System.out.println( \"a2\" );\n" + "   System.out.println( \"a3\" );\n" + "   System.out.println( \"a4\" );\n";
    ExpressionCompiler compiler = new ExpressionCompiler(expr);
    ParserContext ctx = new ParserContext();
    ctx.setStrictTypeEnforcement(true);
    ctx.setDebugSymbols(true);
    ctx.setSourceFile("mysource");
    String s = org.mvel2.debug.DebugTools.decompile(compiler.compile(ctx));
    int fromIndex = 0;
    int count = 0;
    while ((fromIndex = s.indexOf("DEBUG_SYMBOL", fromIndex + 1)) > -1) {
        count++;
    }
    assertEquals(4, count);
}

Example 78 with ExpressionCompiler

use of org.mvel2.compiler.ExpressionCompiler in project mvel by mikebrock.

the class DebuggerTests method testDebuggerInvoke2.

public void testDebuggerInvoke2() {
    count = 0;
    MVELRuntime.resetDebugger();
    MVELRuntime.setThreadDebugger(new Debugger() {

        public int onBreak(Frame frame) {
            count++;
            return 0;
        }
    });
    String src = "a1=7;\na2=8;\nSystem.out.println(\"h\");\nac=23;\nde=23;\nge=23;\ngef=34;";
    ExpressionCompiler c = new ExpressionCompiler(src);
    ParserContext ctx = new ParserContext();
    ctx.setSourceFile("mysource");
    ctx.setDebugSymbols(true);
    CompiledExpression compexpr = c.compile(ctx);
    System.out.println(decompile(compexpr));
    MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 1);
    MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 2);
    MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 3);
    MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 4);
    MVELRuntime.registerBreakpoint(ctx.getSourceFile(), 5);
    VariableResolverFactory factory = new DefaultLocalVariableResolverFactory();
    MVEL.executeDebugger(compexpr, null, factory);
    System.out.println(count);
    assertEquals(5, count);
}

Example 79 with ExpressionCompiler

use of org.mvel2.compiler.ExpressionCompiler in project mvel by mikebrock.

the class DebuggerTests method testDebugSymbolsSingleStatement.

public void testDebugSymbolsSingleStatement() {
    String ex = "System.out.println( Cheese.STILTON );";
    ParserContext ctx = new ParserContext();
    ctx.setStrongTyping(true);
    ctx.addImport(Cheese.class);
    try {
        ExpressionCompiler compiler = new ExpressionCompiler(ex);
        CompiledExpression expr = compiler.compile(ctx);
        // executing the following line with a MVEL.executeExpression() works fine
        // but executeDebugger() fails
        MVEL.executeDebugger(expr, null, (VariableResolverFactory) null);
    } catch (Throwable e) {
        e.printStackTrace();
        fail("Should not raise exception: " + e.getMessage());
    }
}

Example 80 with ExpressionCompiler

use of org.mvel2.compiler.ExpressionCompiler in project mvel by mikebrock.

the class DebuggerTests method testBreakpointsAcrossWith.

public void testBreakpointsAcrossWith() {
    String line1 = "System.out.println( \"a1\" );\n";
    String line2 = "c = new Cheese();\n";
    String line3 = "with ( c ) { type = 'cheddar',\n" + "             price = 10 };\n";
    String line4 = "System.out.println( \"a1\" );\n";
    String expr = line1 + line2 + line3 + line4;
    System.out.println(expr);
    ExpressionCompiler compiler = new ExpressionCompiler(expr);
    ParserContext context = new ParserContext();
    context.addImport("System", System.class);
    context.addImport("Cheese", Cheese.class);
    context.setStrictTypeEnforcement(true);
    context.setDebugSymbols(true);
    context.setSourceFile("mysource");
    String s = org.mvel2.debug.DebugTools.decompile(compiler.compile(context));
    System.out.println("output: " + s);
    int fromIndex = 0;
    int count = 0;
    while ((fromIndex = s.indexOf("DEBUG_SYMBOL", fromIndex + 1)) > -1) {
        count++;
    }
    assertEquals(5, count);
}