public SymbolImplementation BuildMethod(SourceMethodDefinitionSymbol methodSymbol)
{
var methodBody = methodSymbol.Syntax.Body;
var symbolTable = (ISymbolTable) methodSymbol.Parent;
_rootScope = new SymbolScope(symbolTable);
_currentScope = _rootScope;
var symbolContext = methodSymbol;
var implementationNode = methodBody;
var statements = new List<BoundStatement>();
var statementBuilder = new StatementBinder(this, symbolContext, _diagnostics);
if (symbolContext.Parameters != null)
{
int parameterCount = symbolContext.Parameters.Length;
for (int paramIndex = 0; paramIndex < parameterCount; paramIndex++)
_currentScope.AddSymbol(symbolContext.Parameters[paramIndex]);
}
foreach (var statementNode in implementationNode.Statements)
{
var statement = statementBuilder.BuildStatement(statementNode);
if (statement != null)
statements.Add(statement);
}
return new SymbolImplementation(statements.ToImmutableArray(), _rootScope);
}
private MethodDefinitionSymbol BindMethodDefinition(FunctionDefinitionSyntax declaration, TypeSymbol parentType)
{
var returnType = _symbolSet.ResolveType(declaration.ReturnType, parentType, null);
Func<MethodSymbol, IEnumerable<ParameterSymbol>> lazyParameterSymbols = fd =>
{
var parameterSymbols = new List<ParameterSymbol>();
foreach (var parameterSyntax in declaration.ParameterList.Parameters)
{
var parameterValueType = _symbolSet.ResolveType(parameterSyntax.Type, null, null);
var parameterDirection = SyntaxFacts.GetParameterDirection(parameterSyntax.Modifiers);
parameterSymbols.Add(new SourceParameterSymbol(
parameterSyntax,
fd,
parameterValueType,
parameterDirection));
}
return parameterSymbols;
};
var symbol = new SourceMethodDefinitionSymbol(declaration, parentType, returnType, lazyParameterSymbols);
_bindingResult.AddSymbol(declaration, symbol);
return symbol;
}