protected BlockStatNode AssertBlock(string src, bool empty = false)
{
BlockStatNode block = this.GenerateAST(src).As <BlockStatNode>();
Assert.That(block, Is.Not.Null);
Assert.That(block.Children, empty ? Is.Empty : Is.Not.Empty);
this.AssertChildrenParentProperties(block);
return(block);
}
public void SimpleBlockTest()
{
BlockStatNode block = this.AssertBlock(@"
{ // line 2
// line 3
int x; // line 4, block begins
}
");
Assert.That(block.Line, Is.EqualTo(4));
Assert.That(block.Children.Single(), Is.InstanceOf <DeclStatNode>());
}
public override ASTNode VisitFunctionDefinition([NotNull] FunctionDefinitionContext ctx)
{
DeclSpecsNode declSpecs = this.Visit(ctx.declarationSpecifiers()).As <DeclSpecsNode>();
ASTNode decl = this.Visit(ctx.declarator());
if (decl is IdNode fname)
{
decl = new FuncDeclNode(fname.Line, fname);
}
FuncDeclNode fdecl = decl.As <FuncDeclNode>();
BlockStatNode body = this.Visit(ctx.compoundStatement()).As <BlockStatNode>();
return(new FuncDefNode(ctx.Start.Line, declSpecs, fdecl, body));
}
public void ComplexBlockTest()
{
BlockStatNode block = this.AssertBlock(@"
{ // line 2
int x; // line 3, block begins
if (x) {
int z = y + 4;
;
} else {
float x, y = x + 3;
;
;
}
float w, h;
}
");
Assert.That(block.Line, Is.EqualTo(3));
Assert.That(block.Children, Has.Exactly(3).Items);
Assert.That(block.Children.ElementAt(0), Is.InstanceOf <DeclStatNode>());
Assert.That(block.Children.ElementAt(1), Is.InstanceOf <IfStatNode>());
Assert.That(block.Children.ElementAt(2), Is.InstanceOf <DeclStatNode>());
}
public virtual TResult Visit(BlockStatNode node) => this.VisitChildren(node);
public override ASTNode VisitChunk([NotNull] ChunkContext ctx)
{
BlockStatNode block = this.Visit(ctx.block()).As <BlockStatNode>();
return(new SourceNode(this.AddDeclarations(block.Children)));
}
public override MatchIssues Compare(SourceNode n1, SourceNode n2)
{
BlockStatNode b1 = FormBlock(n1);
BlockStatNode b2 = FormBlock(n2);
return(new BlockStatNodeComparer().Compare(b1, b2));