public void Analyze(GlobalCode /*!*/ ast, Analyzer /*!*/ analyzer)
{
analyzer.LeaveUnreachableCode();
ExInfoFromParent info = new ExInfoFromParent(ast);
// analyze auto-prepended inclusion (no code reachability checks):
if (PrependedInclusion != null)
{
info.Access = AccessType.None;
PrependedInclusion.Analyze(analyzer, info);
}
for (int i = 0; i < ast.Statements.Length; i++) // NOTE: ast.Statements may change during analysis, iterate in this way!
{
if (analyzer.IsThisCodeUnreachable() && ast.Statements[i].IsDeclaration)
{
//unreachable declarations in global code are valid
analyzer.LeaveUnreachableCode();
ast.Statements[i] = ast.Statements[i].Analyze(analyzer);
analyzer.EnterUnreachableCode();
}
else
{
ast.Statements[i] = ast.Statements[i].Analyze(analyzer);
}
}
if (!ast.SourceUnit.IsPure)
{
Analyzer.ValidateLabels(analyzer.ErrorSink, ast.SourceUnit, labels);
}
// analyze auto-prepended inclusion (no code reachability checks):
if (AppendedInclusion != null)
{
info.Access = AccessType.Read;
AppendedInclusion.Analyze(analyzer, info);
}
analyzer.LeaveUnreachableCode();
}
/// <include file='Doc/Nodes.xml' path='doc/method[@name="Emit"]/*'/>
/// <param name="ast">Instance.</param>
public void Emit(GlobalCode /*!*/ ast, CodeGenerator /*!*/ codeGenerator)
{
// TODO: improve
codeGenerator.EnterGlobalCodeDeclaration(this.varTable, labels, (CompilationSourceUnit)ast.SourceUnit);
//
if (codeGenerator.CompilationUnit.IsTransient)
{
codeGenerator.DefineLabels(labels);
codeGenerator.ChainBuilder.Create();
foreach (Statement statement in ast.Statements)
{
statement.Emit(codeGenerator);
}
codeGenerator.ChainBuilder.End();
// return + appended file emission:
codeGenerator.EmitRoutineEpilogue(ast, true);
}
#if !SILVERLIGHT
else if (codeGenerator.CompilationUnit.IsPure)
{
codeGenerator.ChainBuilder.Create();
foreach (Statement statement in ast.Statements)
{
// skip empty statements in global code (they emit sequence points, which is undesirable):
if (!(statement is EmptyStmt))
{
statement.Emit(codeGenerator);
}
}
codeGenerator.ChainBuilder.End();
}
else
{
ScriptCompilationUnit unit = (ScriptCompilationUnit)codeGenerator.CompilationUnit;
ILEmitter il = codeGenerator.IL;
if (codeGenerator.Context.Config.Compiler.Debug)
{
codeGenerator.MarkSequencePoint(0);
il.Emit(OpCodes.Nop);
}
codeGenerator.DefineLabels(labels);
// CALL <self>.<Declare>(context);
codeGenerator.EmitLoadScriptContext();
il.Emit(OpCodes.Call, unit.ScriptBuilder.DeclareHelperBuilder);
// IF (<is main script>) CALL <prepended script>.Main()
if (PrependedInclusion != null)
{
PrependedInclusion.Emit(codeGenerator);
}
codeGenerator.ChainBuilder.Create();
foreach (Statement statement in ast.Statements)
{
statement.Emit(codeGenerator);
}
codeGenerator.ChainBuilder.End();
// return + appended file emission:
codeGenerator.EmitRoutineEpilogue(ast, false);
}
#endif
codeGenerator.LeaveGlobalCodeDeclaration();
}
