private void Render(DeclareTagHelperFields source, CSharpRenderingContext context)
{
foreach (var tagHelperTypeName in source.UsedTagHelperTypeNames)
{
var tagHelperVariableName = GetTagHelperVariableName(tagHelperTypeName);
context.Writer
.Write("private global::")
.WriteVariableDeclaration(
tagHelperTypeName,
tagHelperVariableName,
value: null);
}
}
private static void Render(DeclareTagHelperFields source, CSharpRenderingContext context)
{
var tagHelperCodeLiterals = context.CodeLiterals.GeneratedTagHelperContext;
context.Writer.WriteLineHiddenDirective();
// Need to disable the warning "X is assigned to but never used." for the value buffer since
// whether it's used depends on how a TagHelper is used.
context.Writer
.WritePragma("warning disable 0414")
.Write("private ")
.WriteVariableDeclaration("string", StringValueBufferVariableName, value: null)
.WritePragma("warning restore 0414");
context.Writer
.Write("private global::")
.WriteVariableDeclaration(
tagHelperCodeLiterals.ExecutionContextTypeName,
ExecutionContextVariableName,
value: null);
context.Writer
.Write("private global::")
.Write(tagHelperCodeLiterals.RunnerTypeName)
.Write(" ")
.Write(RunnerVariableName)
.Write(" = new global::")
.Write(tagHelperCodeLiterals.RunnerTypeName)
.WriteLine("();");
const string backedScopeManageVariableName = "__backed" + ScopeManagerVariableName;
context.Writer
.Write("private global::")
.WriteVariableDeclaration(
tagHelperCodeLiterals.ScopeManagerTypeName,
backedScopeManageVariableName,
value: null);
context.Writer
.Write("private global::")
.Write(tagHelperCodeLiterals.ScopeManagerTypeName)
.Write(" ")
.WriteLine(ScopeManagerVariableName);
using (context.Writer.BuildScope())
{
context.Writer.WriteLine("get");
using (context.Writer.BuildScope())
{
context.Writer
.Write("if (")
.Write(backedScopeManageVariableName)
.WriteLine(" == null)");
using (context.Writer.BuildScope())
{
context.Writer
.WriteStartAssignment(backedScopeManageVariableName)
.WriteStartNewObject(tagHelperCodeLiterals.ScopeManagerTypeName)
.Write(tagHelperCodeLiterals.StartTagHelperWritingScopeMethodName)
.WriteParameterSeparator()
.Write(tagHelperCodeLiterals.EndTagHelperWritingScopeMethodName)
.WriteEndMethodInvocation();
}
context.Writer.WriteReturn(backedScopeManageVariableName);
}
}
foreach (var tagHelperTypeName in source.UsedTagHelperTypeNames)
{
var tagHelperVariableName = GetTagHelperVariableName(tagHelperTypeName);
context.Writer
.Write("private global::")
.WriteVariableDeclaration(
tagHelperTypeName,
tagHelperVariableName,
value: null);
}
}
