public SyntaxNode BuildFor(EcmaScriptParser parser, SourceLocation location)
{
if (Expression != null)
{
IIdentifier identifier;
if (Initialization is IdentifierSyntax)
{
identifier = ((IdentifierSyntax)Initialization).Identifier;
}
else
{
var variableDeclaration = (VariableDeclarationSyntax)Initialization;
Debug.Assert(variableDeclaration.Declarations.Count == 1);
var declaration = variableDeclaration.Declarations[0];
identifier = declaration.Identifier;
Debug.Assert(declaration.Expression == null);
}
return _builder.BuildForEachIn(
identifier,
Expression,
Body,
location
);
}
return _builder.BuildFor(
Initialization,
Test,
Increment,
Body,
location
);
}
private static BodySyntax ParseBlockStatement(string source, ReadOnlyArray<string> parameters)
{
if (String.IsNullOrEmpty(source))
return null;
var lexer = new EcmaScriptLexer(new ANTLRStringStream(source));
var parser = new EcmaScriptParser(new CommonTokenStream(lexer), source);
var block = parser.ExecuteBlockStatements(parameters);
if (parser.Errors != null && parser.Errors.Count > 0)
throw new JintException(String.Join(Environment.NewLine, parser.Errors.ToArray()));
return block;
}
internal static ProgramSyntax ParseProgram(string source)
{
if (String.IsNullOrEmpty(source))
return null;
var lexer = new EcmaScriptLexer(new ANTLRStringStream(source));
var parser = new EcmaScriptParser(new CommonTokenStream(lexer), source);
var program = parser.Execute();
if (parser.Errors != null && parser.Errors.Count > 0)
throw new JintException(String.Join(Environment.NewLine, parser.Errors.ToArray()));
return program;
}
