/// <summary>
/// 実際に実行する部分。
/// </summary>
protected virtual object ExecuteCore(TextReader stream, string filename)
{
Contract.Requires <ArgumentNullException>(stream != null);
Contract.Requires <ArgumentNullException>(filename != null);
Initialize();
Func <Scope, object> program;
{
// Compile
var sw = Stopwatch.StartNew();
var token = Tokenizer.Tokenize(stream, filename);
var ast = Parser.Parse(token, filename);
var expr = ExpressionGenerator.Generate(ast, this.Factory, filename);
expr = ExpressionOptimizer.Analyze(expr);
program = CompilerHelpers.Compile(expr, true);
//program = expr.Compile();
sw.Stop();
var ev = OnCompiled;
if (ev != null)
{
ev(this, new EngineEventArgs(sw.ElapsedMilliseconds));
}
}
{
// Execute
var sw = Stopwatch.StartNew();
var result = program(this.Global);
sw.Stop();
var ev = OnExecuted;
if (ev != null)
{
ev(this, new EngineEventArgs(sw.ElapsedMilliseconds));
}
return(result);
}
}
public DynamicGenerator(int seed, ModuleDefinition mod, bool useMath = false)
{
rand = new Random(seed);
Module = mod;
injection = AssemblyDefinition.ReadAssembly(typeof(Iid).Assembly.Location);
injection.MainModule.ReadSymbols();
ExpGen = new ExpressionGenerator(rand.Next(500000), Module);
MathGen = new MathGenerator(rand.Next(500000), Module);
emit = Instruction.Create(OpCodes.Call, Module.Import(typeof(System.Reflection.Emit.ILGenerator).GetMethod("Emit", new Type[] {
typeof(System.Reflection.Emit.OpCode)
})));
int expNum = rand.Next(5, 50);
for (int i = 0; i < expNum; i++)
{
ExpGen = new ExpressionGenerator(rand.Next(50000), Module);
Expression ex = ExpGen.Generate(rand.Next(5, 14));
int evald = ExpressionEvaluator.Evaluate(ex, 5);
Expression exR = ExpressionInverser.InverseExpression(ex);
CreateDynamic(ex, exR, 5, evald, useMath);
}
}
public void GeneratorDoesNotExposeStaticFunctionsWithUnsupportedTypeParameters()
{
var generator = new ExpressionGenerator();
generator.AddFunctions(typeof(InvalidFunctions));
Assert.Throws <UnknownFunctionException>(() => generator.Generate("RegexToString(\".*\")"));
}
public void WhenTooFewParametersAreSupplied_ThrowsIncorrectParameterCountException()
{
var generator = new ExpressionGenerator();
generator.AddFunctions(typeof(MockFormulae));
Assert.Throws <IncorrectParameterCountException>(() => generator.Generate("Not()"));
}
public void GeneratorDoesNotExposeStaticFunctionsWithUnsupportedReturnTypes()
{
var generator = new ExpressionGenerator();
generator.AddFunctions(typeof(InvalidFunctions));
Assert.Throws <UnknownFunctionException>(() => generator.Generate("ReturnRegex()"));
}
private TwoCoordinateToValue2D CreatePerpendicularDotProduct2D()
{
var x0 = typeof(TValue).CreateParameterExpression();
var y0 = typeof(TValue).CreateParameterExpression();
var x1 = typeof(TValue).CreateParameterExpression();
var y1 = typeof(TValue).CreateParameterExpression();
var mula = ExpressionGenerator.Generate("Multiply", x0, y1);
var mulb = ExpressionGenerator.Generate("Multiply", y0, x1);
if (mula == null || mulb == null)
{
return(null);
}
var expression = ExpressionGenerator.Generate("Subtract", mula, mulb);
if (expression == null)
{
return(null);
}
return(Expression.Lambda <TwoCoordinateToValue2D>(
expression, x0, y0, x1, y1
).Compile());
}
public void FunctionsNamesAreCaseInsensitive()
{
var generator = new ExpressionGenerator();
generator.AddFunctions(typeof(MockFormulae));
generator.Generate("ONE()");
}
public void IfReturnsSecondResultWhenConditionIsFalse()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("If(2 = 1, 8, 9)");
var result = func(null);
Assert.Equal(9m, (decimal)result);
}
public void DateIsAValidExpression()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("'2010-12-31'");
var result = func(new Dictionary <string, string>());
Assert.Equal(new DateTime(2010, 12, 31), (DateTime)result);
}
public void CanAddTwoNumbersTogether()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("5 + 4");
var result = func(null);
Assert.Equal(9m, (decimal)result);
}
public void TrueReturnsTrue()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("true");
var result = func(null);
Assert.True((bool)result);
}
public void UnaryNegationOperatorReversesTheSignOfANumber()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("-(1)");
var result = func(null);
Assert.Equal(-1m, (decimal)result);
}
public void AndExpressionPerformsLogicalAnd()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("(1 = 0) & (1 = 1)");
var result = func(null);
Assert.False((bool)result);
}
public void OrExpressionThrowsExceptionIfRhsIsNotBoolean()
{
var generator = new ExpressionGenerator();
var ex = Assert.Throws <TypeMismatchException>(() => generator.Generate("(1 = 0) | 1)"));
Assert.Equal(typeof(bool), ex.Expected);
Assert.Equal(typeof(decimal), ex.Actual);
}
public void IfReturnsFirstResultWhenConditionIsTrue()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("If(1 = 1, 8, 9)");
var result = func(null);
Assert.Equal(8m, (decimal)result);
}
public void NumberIsAValidExpression()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("5");
var result = func(new Dictionary <string, string>());
Assert.Equal(5, (decimal)result);
}
public void CanDoLessEqualOfTwoNumbers()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("5.3 <= 8.4");
var result = func(null);
Assert.True((bool)result);
}
public void CanDoGreaterEqualOfTwoNumbers()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("5.3 >= 8.4");
var result = func(null);
Assert.False((bool)result);
}
public void CanDoLessEqualOfTwoDates()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("'2010-12-30' <= '2010-12-31'");
var result = func(null);
Assert.True((bool)result);
}
public void OrExpressionPerformsLogicalOr()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("(1 = 0) | (1 = 1)");
var result = func(null);
Assert.True((bool)result);
}
public void IfThrowsExceptionIfConditionisNotABooleanExpression()
{
var generator = new ExpressionGenerator();
var ex = Assert.Throws <TypeMismatchException>(() => generator.Generate("If(1, 8, 9)"));
Assert.Equal(typeof(bool), ex.Expected);
Assert.Equal(typeof(decimal), ex.Actual);
}
public void BracketExpressionsEvaluateTheContentsOfTheBracket()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("(5)");
var result = func(null);
Assert.Equal(5m, (decimal)result);
}
public void StringIsAValidExpression()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("\"hello\"");
var result = func(new Dictionary <string, string>());
Assert.Equal("hello", (string)result);
}
public void FalseReturnsFalse()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("false");
var result = func(null);
Assert.False((bool)result);
}
public void CanDoNotEqualOnTwoNumbers()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("2 != 1");
var result = func(null);
Assert.True((bool)result);
}
public void UnaryNegationExpressionThrowsExceptionWhenExpressionIsNotANumber()
{
var generator = new ExpressionGenerator();
var ex = Assert.Throws <TypeMismatchException>(() => generator.Generate("-\"String\""));
Assert.Equal(typeof(decimal), ex.Expected);
Assert.Equal(typeof(string), ex.Actual);
}
public void CanDoNotEqualOnTwoStrings()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("\"Hello\" != \"World\"");
var result = func(null);
Assert.True((bool)result);
}
public void CanDoNotEqualOnTwoDates()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("'2012-12-31' != '2010-06-05'");
var result = func(null);
Assert.True((bool)result);
}
public void NotOperatorInvertsABooleanExpression()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("!(1 = 0)");
var result = func(null);
Assert.True((bool)result);
}
public void CanSubtractTwoNumbers()
{
var generator = new ExpressionGenerator();
var func = generator.Generate("5 - 4");
var result = func(null);
Assert.Equal(1m, (decimal)result);
}
public Func<double> Compile(Block block)
{
ParameterExpression result = Expression.Parameter(typeof(int), "result");
var compiler = new ExpressionGenerator();
compiler.SetReturnType<double>();
foreach (var varDef in block.Variables.Values)
{
//var v = Expression.Variable(ExpressionCompiler.GetCsType(varDef.ValueType), varDef.Name.Name);
//expressions.Add(v);
compiler.AddVariable(varDef);
}
foreach (var statement in block.Statements)
{
compiler.AddExpression(statement);
}
BlockExpression blockExpression = compiler.Generate();
var lambda = Expression.Lambda<Func<double>>(blockExpression);
var compiled = lambda.Compile();
return compiled;
}