public override IAstNode VisitFunctionDefinition(FunctionDefinitionContext context)
{
BeginFunctionDefinition( );
var sig = ( Prototype )context.Signature.Accept(this);
foreach (var param in sig.Parameters)
{
Push(param);
}
var body = ( IExpression )context.BodyExpression.Accept(this);
var retVal = new FunctionDefinition(context.GetSourceSpan( )
, sig
, body
, LocalVariables.ToImmutableArray( )
);
// only add valid definitions to the runtime state.
var errors = retVal.CollectErrors( );
if (errors.Count == 0)
{
RuntimeState.FunctionDefinitions.AddOrReplaceItem(retVal);
}
else
{
// remove the prototype implicitly added for this definition
// as the definition has errors
RuntimeState.FunctionDeclarations.Remove(sig);
}
return(retVal);
}
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 override IAstNode VisitFunctionDefinition([NotNull] FunctionDefinitionContext context)
{
BeginFunctionDefinition( );
var sig = ( Prototype )context.Signature.Accept(this);
foreach (var param in sig.Parameters)
{
Push(param);
}
var body = ( IExpression )context.BodyExpression.Accept(this);
var retVal = new FunctionDefinition(context.GetSourceSpan( )
, sig
, body
, LocalVariables.ToImmutableArray( )
);
RuntimeState.FunctionDefinitions.AddOrReplaceItem(retVal);
return(retVal);
}
public override Value VisitFunctionDefinition([NotNull] FunctionDefinitionContext context)
{
return(DefineFunction(( Function )context.Signature.Accept(this)
, context.BodyExpression
).Function);
}
