/// <summary>
/// Creates a parser that can read the body of a function.
/// </summary>
/// <param name="parser"> The parser for the parent context. </param>
/// <param name="scope"> The function scope. </param>
/// <returns> A new parser. </returns>
private static Parser CreateFunctionBodyParser(Parser parser, Scope scope)
{
var result = (Parser)parser.MemberwiseClone();
result.currentScope = result.initialScope = scope;
result.methodOptimizationHints = new MethodOptimizationHints();
result.context = CodeContext.Function;
result.endToken = PunctuatorToken.RightBrace;
result.DirectivePrologueProcessedCallback = null;
return result;
}
/// <summary>
/// Parses the source text into an abstract syntax tree.
/// </summary>
public override void Parse()
{
using (var lexer = new Lexer(this.Engine, this.Source))
{
var parser = new Parser(this.Engine, lexer, this.InitialScope, this.Options, CodeContext.Global);
this.AbstractSyntaxTree = parser.Parse();
this.StrictMode = parser.StrictMode;
this.MethodOptimizationHints = parser.MethodOptimizationHints;
}
}
/// <summary>
/// Parses the source text into an abstract syntax tree.
/// </summary>
public override void Parse()
{
var lexer = new Lexer(this.Engine, this.Source);
var parser = new Parser(this.Engine, lexer, this.InitialScope, this.Options, CodeContext.Eval);
// If the eval() is running strict mode, create a new scope.
parser.DirectivePrologueProcessedCallback = parser2 =>
{
if (parser2.StrictMode == true)
parser2.InitialScope = parser2.Scope = DeclarativeScope.CreateEvalScope(parser2.Scope);
};
this.AbstractSyntaxTree = parser.Parse();
this.StrictMode = parser.StrictMode;
this.InitialScope = parser.Scope;
this.MethodOptimizationHints = parser.MethodOptimizationHints;
}
/// <summary>
/// Parses the source text into an abstract syntax tree.
/// </summary>
/// <returns> The root node of the abstract syntax tree. </returns>
public override void Parse()
{
if (this.BodyRoot != null)
{
this.AbstractSyntaxTree = this.BodyRoot;
}
else
{
using (var lexer = new Lexer(this.Engine, this.Source))
{
var parser = new Parser(this.Engine, lexer, this.InitialScope, this.Options, CodeContext.Function);
this.AbstractSyntaxTree = parser.Parse();
this.StrictMode = parser.StrictMode;
this.MethodOptimizationHints = parser.MethodOptimizationHints;
}
Validate();
}
}
/// <summary>
/// Creates a parser that can read the body of a function.
/// </summary>
/// <param name="parser"> The parser for the parent context. </param>
/// <param name="scope"> The function scope. </param>
/// <param name="optimizationHints"> Hints about whether optimization is possible. </param>
/// <returns> A new parser. </returns>
private static Parser CreateFunctionBodyParser(Parser parser, Scope scope, MethodOptimizationHints optimizationHints)
{
var result = (Parser)parser.MemberwiseClone();
result.SetInitialScope(scope);
result.methodOptimizationHints = optimizationHints;
result.context = CodeContext.Function;
result.endToken = PunctuatorToken.RightBrace;
return result;
}
public ScopeContext(Parser parser)
{
this.parser = parser;
previousLetScope = parser.currentLetScope;
previousVarScope = parser.currentVarScope;
}
