// ExecuteFileInScope executes the file in the given module scope. This
// does NOT store the module scope on Globals. This function returns
// nothing.
//
public void ExecuteFileInScope(string filename, ExpandoObject moduleEO)
{
var f = new StreamReader(filename);
// Simple way to convey script rundir for RuntimeHelpes.SymplImport
// to load .sympl files.
DynamicObjectHelpers.SetMember(moduleEO, "__file__",
Path.GetFullPath(filename));
try {
var asts = new Parser().ParseFile(f);
var scope = new AnalysisScope(
null,
filename,
this,
Expression.Parameter(typeof(Sympl), "symplRuntime"),
Expression.Parameter(typeof(ExpandoObject), "fileModule")
);
List <Expression> body = new List <Expression>();
foreach (var e in asts)
{
body.Add(ETGen.AnalyzeExpr(e, scope));
}
var moduleFun = Expression.Lambda <Action <Sympl, ExpandoObject> >(
Expression.Block(body),
scope.RuntimeExpr,
scope.ModuleExpr
);
var d = moduleFun.Compile();
d(this, moduleEO);
} finally {
f.Close();
}
}
ParseFileToLambda(string filename, TextReader reader)
{
var asts = new Parser().ParseFile(reader);
var scope = new AnalysisScope(
null,
filename,
this,
Expression.Parameter(typeof(Sympl), "symplRuntime"),
Expression.Parameter(typeof(IDynamicMetaObjectProvider),
"fileModule"));
List <Expression> body = new List <Expression>();
foreach (var e in asts)
{
body.Add(ETGen.AnalyzeExpr(e, scope));
}
body.Add(Expression.Constant(null));
var moduleFun = Expression.Lambda <Func <Sympl, IDynamicMetaObjectProvider,
object> >(
Expression.Block(body),
scope.RuntimeExpr,
scope.ModuleExpr);
return(moduleFun);
}
ParseExprToLambda(TextReader reader)
{
var ast = new Parser().ParseExpr(reader);
var scope = new AnalysisScope(
null,
"__snippet__",
this,
Expression.Parameter(typeof(Sympl), "symplRuntime"),
Expression.Parameter(typeof(IDynamicMetaObjectProvider),
"fileModule"));
List <Expression> body = new List <Expression>();
body.Add(Expression.Convert(ETGen.AnalyzeExpr(ast, scope),
typeof(object)));
var moduleFun = Expression.Lambda <Func <Sympl, IDynamicMetaObjectProvider,
object> >(
Expression.Block(body),
scope.RuntimeExpr,
scope.ModuleExpr
);
return(moduleFun);
}
// Execute a single expression parsed from string in the provided module
// scope and returns the resulting value.
//
public object ExecuteExpr(string expr_str, ExpandoObject moduleEO)
{
var f = new StringReader(expr_str);
var ast = new Parser().ParseExpr(f);
var scope = new AnalysisScope(
null,
"__snippet__",
this,
Expression.Parameter(typeof(Sympl), "symplRuntime"),
Expression.Parameter(typeof(ExpandoObject), "fileModule")
);
List <Expression> body = new List <Expression>();
body.Add(Expression.Convert(ETGen.AnalyzeExpr(ast, scope),
typeof(object)));
var moduleFun = Expression.Lambda <Func <Sympl, ExpandoObject, object> >(
Expression.Block(body),
scope.RuntimeExpr,
scope.ModuleExpr
);
var d = moduleFun.Compile();
return(d(this, moduleEO));
}
