static void Main(string[] args)
{
//
// Get the syntax tree.
//
var code = @"
using System;
class Foo
{
void Bar(int x)
{
Console.WriteLine(3.14);
Console.WriteLine(""qux"");
Console.WriteLine('c');
Console.WriteLine(null);
Console.WriteLine(x * 2 + 1);
}
}
";
var tree = CSharpSyntaxTree.ParseText(code);
var root = tree.GetRoot();
//
// Get the semantic model from the compilation.
//
var mscorlib = new MetadataFileReference(typeof(object).Assembly.Location);
var comp = CSharpCompilation.Create("Demo").AddSyntaxTrees(tree).AddReferences(mscorlib);
var model = comp.GetSemanticModel(tree);
//
// Traverse the tree.
//
var walker = new ConsoleWriteLineWalker();
walker.Visit(root);
//
// Analyze the constant argument (if any).
//
foreach (var arg in walker.Arguments)
{
// TODO: Insert semantic analysis of constant values here.
}
}
static void Main(string[] args)
{
//
// Get the syntax tree.
//
var code = @"
using System;
class Foo
{
void Bar(int x)
{
Console.WriteLine(3.14);
Console.WriteLine(""qux"");
Console.WriteLine('c');
Console.WriteLine(null);
Console.WriteLine(x * 2 + 1);
}
}
";
var tree = CSharpSyntaxTree.ParseText(code);
var root = tree.GetRoot();
//
// Get the semantic model from the compilation.
//
var mscorlib = new MetadataFileReference(typeof(object).Assembly.Location);
var comp = CSharpCompilation.Create("Demo").AddSyntaxTrees(tree).AddReferences(mscorlib);
var model = comp.GetSemanticModel(tree);
//
// Traverse the tree.
//
var walker = new ConsoleWriteLineWalker();
walker.Visit(root);
//
// Analyze the constant argument (if any).
//
foreach (var arg in walker.Arguments)
{
var val = model.GetConstantValue(arg);
if (val.HasValue)
{
Console.WriteLine(arg + " has constant value " + (val.Value ?? "null") + " of type " + (val.Value?.GetType() ?? typeof(object)));
}
else
{
Console.WriteLine(arg + " has no constant value");
}
}
}
