public void SimpleTest()
{
var syntaxTree = GetSimpleSyntaxTree();
var methodDeclaration = syntaxTree.GetRoot()
.DescendantNodes()
.OfType <MethodDeclarationSyntax>()
.Single();
string expression = null;
if (
P.SingleStatement(
P.ExpressionStatement(
P.InvocationExpression(
P.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
P.IdentifierName("WriteLine"),
P.IdentifierName("Console")
),
P.ArgumentList(
P.Argument(
expression: P.LiteralExpression(
action: p => expression = p.Token.ValueText
)
)
)
)
)
).IsMatch(methodDeclaration.Body)
)
{
Assert.AreEqual("Hello world!", expression);
}
}
public void MatchAllStringInvocations()
{
var syntaxTree = GetSimpleSyntaxTree();
var methodDeclaration = syntaxTree.GetRoot()
.DescendantNodes()
.OfType <MethodDeclarationSyntax>()
.Single();
var strings = new List <string>();
int matches =
P.InvocationExpression(
P.MemberAccessExpression(),
P.ArgumentList(
P.Argument(
expression: P.LiteralExpression(
action: p => strings.Add(p.Token.ValueText)
)
)
)
)
.MatchDescendantNodes(methodDeclaration.Body)
.Count;
Assert.AreEqual(2, matches);
Assert.AreEqual(new List <string> {
"Hello ", "world!"
}, strings);
}
