public override void CodeGen(OutputContext output)
{
output.Print("switch");
output.Space();
Expression.Print(output, true);
output.Space();
if (Body.Count == 0)
{
output.Print("{}");
}
else
{
output.Print("{");
output.Newline();
output.Indentation += output.Options.IndentLevel;
for (var i = 0u; i < Body.Count; i++)
{
var branch = (AstSwitchBranch)Body[i];
output.Indent(true);
branch.Print(output);
if (i < Body.Count - 1 && branch.Body.Count > 0)
{
output.Newline();
}
}
output.Indentation -= output.Options.IndentLevel;
output.Indent();
output.Print("}");
};
}
public override void CodeGen(OutputContext output)
{
output.Print("[");
var len = Elements.Count;
if (len > 0)
{
output.Space();
}
for (var i = 0u; i < Elements.Count; i++)
{
if (i > 0)
{
output.Comma();
}
var exp = Elements[i];
exp.Print(output);
// If the final element is a hole, we need to make sure it
// doesn't look like a trailing comma, by inserting an actual
// trailing comma.
if (i == len - 1 && exp is AstHole)
{
output.Comma();
}
}
if (len > 0)
{
output.Space();
}
output.Print("]");
}
public override void CodeGen(OutputContext output)
{
if (Properties.Count > 0)
{
output.Print("{");
output.Newline();
output.Indentation += output.Options.IndentLevel;
for (var i = 0u; i < Properties.Count; i++)
{
if (i > 0)
{
output.Print(",");
output.Newline();
}
output.Indent();
Properties[i].Print(output);
}
output.Newline();
output.Indentation -= output.Options.IndentLevel;
output.Indent();
output.Print("}");
}
else
{
output.Print("{}");
}
}
public override void CodeGen(OutputContext output)
{
Expression.Print(output);
if (this is AstNew && !output.NeedConstructorParens(this))
{
return;
}
if (Expression is AstCall or AstLambda)
{
output.AddMapping(Expression.Source, Start, false);
}
if (Optional)
{
output.Print("?.");
}
output.Print("(");
for (var i = 0u; i < Args.Count; i++)
{
if (i > 0)
{
output.Comma();
}
Args[i].Print(output);
}
output.Print(")");
}
protected void PrintGetterSetter(OutputContext output, string type, bool @static)
{
if (@static)
{
output.Print("static");
output.Space();
}
if (type != null)
{
output.Print(type);
output.Space();
}
if (Key is AstSymbolMethod symbolMethod)
{
output.PrintPropertyName(symbolMethod.Name);
}
else
{
output.Print("[");
((AstNode)Key).Print(output);
output.Print("]");
}
((AstLambda)Value).DoPrint(output, true);
}
public void Print(OutputContext output, bool forceParens = false)
{
output.PushNode(this);
if (this is AstToplevel)
{
output.AddMapping(null, new Position(), true);
}
else
{
output.AddMapping(Source, Start, true);
}
if (forceParens || NeedParens(output))
{
output.Print("(");
CodeGen(output);
output.Print(")");
}
else
{
CodeGen(output);
}
output.PopNode();
}
public override void CodeGen(OutputContext output)
{
Expression.Print(output);
output.Print("[");
((AstNode)Property).Print(output);
output.Print("]");
}
public override void CodeGen(OutputContext output)
{
output.Print("class");
output.Space();
if (Name != null)
{
Name.Print(output);
output.Space();
}
if (Extends != null)
{
var parens = !(Extends is AstSymbolRef) &&
!(Extends is AstPropAccess) &&
!(Extends is AstClassExpression) &&
!(Extends is AstFunction);
output.Print("extends");
if (!parens)
{
output.Space();
}
Extends.Print(output, parens);
if (!parens)
{
output.Space();
}
}
if (Properties.Count > 0)
{
output.Print("{");
output.Newline();
output.Indentation += output.Options.IndentLevel;
output.Indent();
for (var i = 0u; i < Properties.Count; i++)
{
if (i > 0)
{
output.Newline();
}
output.Indent();
Properties[i].Print(output);
}
output.Newline();
output.Indentation -= output.Options.IndentLevel;
output.Indent();
output.Print("}");
}
else
{
output.Print("{}");
}
}
public override void CodeGen(OutputContext output)
{
output.Print("with");
output.Space();
output.Print("(");
Expression.Print(output);
output.Print(")");
output.Space();
output.PrintBody(Body);
}
public override void CodeGen(OutputContext output)
{
output.Print("while");
output.Space();
output.Print("(");
Condition.Print(output);
output.Print(")");
output.Space();
output.PrintBody(Body);
}
public override void CodeGen(OutputContext output)
{
output.Print("/");
output.Print(Value.Pattern);
output.Print("/");
var f = Value.Flags;
if (f.HasFlag(RegExpFlags.GlobalMatch))
{
output.Print("g");
}
if (f.HasFlag(RegExpFlags.IgnoreCase))
{
output.Print("i");
}
if (f.HasFlag(RegExpFlags.Multiline))
{
output.Print("m");
}
if (f.HasFlag(RegExpFlags.Sticky))
{
output.Print("y");
}
if (f.HasFlag(RegExpFlags.Unicode))
{
output.Print("u");
}
if (f.HasFlag(RegExpFlags.DotAll))
{
output.Print("s");
}
}
public override void CodeGen(OutputContext output)
{
Expression.Print(output, Expression is AstBinary && output.NeedNodeParens(Expression));
if (output.NeedDotAfterNumber())
{
output.Print(".");
}
output.AddMapping(Expression.Source, Expression.End, false);
output.Print(".");
output.Print((string)Property);
}
public override void CodeGen(OutputContext output)
{
if (!output.Options.ShortenBooleans)
{
output.Print("true");
}
else
{
output.Print("!0");
output.SetNeedDotAfterNumber();
}
}
public override void CodeGen(OutputContext output)
{
output.Print("do");
output.Space();
output.MakeBlock(Body);
output.Space();
output.Print("while");
output.Space();
output.Print("(");
Condition.Print(output);
output.Print(")");
output.Semicolon();
}
public override void CodeGen(OutputContext output)
{
var isTagged = output.Parent() is AstPrefixedTemplateString;
output.Print("`");
for (var i = 0u; i < Segments.Count; i++)
{
if (!(Segments[i] is AstTemplateSegment seg))
{
output.Print("${");
Segments[i].Print(output);
output.Print("}");
}
public override void CodeGen(OutputContext output)
{
Expression.Print(output);
if (output.NeedDotAfterNumber())
{
output.Print(".");
}
output.Print(".");
// the name after dot would be mapped about here.
output.AddMapping(End);
output.Print((string)Property);
}
public override void CodeGen(OutputContext output)
{
output.Print("case");
output.Space();
Expression.Print(output);
output.Print(":");
output.Newline();
for (var i = 0u; i < Body.Count; i++)
{
output.Indent();
Body[i].Print(output);
output.Newline();
}
}
public override void CodeGen(OutputContext output)
{
output.Print("import");
output.Space();
ImportedName?.Print(output);
if (ImportedName != null && ImportedNames.Count > 0)
{
output.Print(",");
output.Space();
}
if (ImportedNames.Count > 0)
{
if (ImportedNames.Count == 1 && ImportedNames[0].ForeignName.Name == "*")
{
ImportedNames[0].Print(output);
}
else
{
output.Print("{");
for (var i = 0u; i < ImportedNames.Count; i++)
{
if (i > 0)
{
output.Comma();
}
else
{
output.Space();
}
ImportedNames[i].Print(output);
}
output.Space();
output.Print("}");
}
}
if (ImportedName != null || ImportedNames.Count > 0)
{
output.Space();
output.Print("from");
output.Space();
}
ModuleName.Print(output);
output.Semicolon();
}
public void Print(OutputContext output, bool forceParens = false)
{
output.PushNode(this);
if (forceParens || !output.HasParens() && NeedParens(output))
{
output.Print("(");
CodeGen(output);
output.Print(")");
}
else
{
CodeGen(output);
}
output.PopNode();
}
protected void DoPrint(OutputContext output, string kind)
{
output.Print(kind);
output.Space();
for (var i = 0u; i < Definitions.Count; i++)
{
if (i > 0)
{
output.Comma();
}
Definitions[i].Print(output);
}
var p = output.Parent();
if (p is AstFor astFor && astFor.Init == this)
{
return;
}
if (p is AstForIn astForIn && astForIn.Init == this)
{
return;
}
if (p == null)
{
return;
}
output.Semicolon();
}
public override void CodeGen(OutputContext output)
{
output.Print(IsStar ? "yield*" : "yield");
if (Expression != null)
{
output.Space();
Expression.Print(output);
}
}
public override void CodeGen(OutputContext output)
{
var parenthesizeTag = Prefix is AstArrow ||
Prefix is AstBinary ||
Prefix is AstConditional ||
Prefix is AstSequence ||
Prefix is AstUnary;
if (parenthesizeTag)
{
output.Print("(");
}
Prefix.Print(output);
if (parenthesizeTag)
{
output.Print(")");
}
TemplateString.Print(output);
}
public override void CodeGen(OutputContext output)
{
output.Print("default:");
output.Newline();
for (var i = 0u; i < Body.Count; i++)
{
output.Indent();
Body[i].Print(output);
output.Newline();
}
}
public override void CodeGen(OutputContext output)
{
output.Print(this is AstReturn ? "return" : "throw");
if (Value != null)
{
output.Space();
Value.Print(output);
}
output.Semicolon();
}
public override void CodeGen(OutputContext output)
{
Condition.Print(output);
output.Space();
output.Print("?");
output.Space();
Consequent.Print(output);
output.Space();
output.Colon();
Alternative.Print(output);
}
public override void CodeGen(OutputContext output)
{
output.Print("for");
if (Await)
{
output.Space();
output.Print("await");
}
output.Space();
output.Print("(");
Init.Print(output);
output.Space();
output.Print(this is AstForOf ? "of" : "in");
output.Space();
Object.Print(output);
output.Print(")");
output.Space();
output.PrintBody(Body);
}
public override void CodeGen(OutputContext output)
{
var op = Operator;
Left.Print(output, Left is AstBinary && output.NeedNodeParens(Left));
if (OutputContext.OperatorToString(op)[0] == '>' && /* ">>" ">>>" ">" ">=" */
Left is AstUnaryPostfix leftPostfix &&
leftPostfix.Operator == Operator.DecrementPostfix)
{
// space is mandatory to avoid outputting -->
output.Print(" ");
}
public override void CodeGen(OutputContext output)
{
output.Print("catch");
if (Argname != null)
{
output.Space();
Argname.Print(output, true);
}
output.Space();
output.PrintBraced(this, false);
}
public override void CodeGen(OutputContext output)
{
output.Print(this is AstBreak ? "break" : "continue");
if (Label != null)
{
output.Space();
var name = Label.Thedef?.MangledName ?? Label.Thedef?.Name ?? Label.Name;
output.PrintName(name);
}
output.Semicolon();
}
public override void CodeGen(OutputContext output)
{
output.Print(Operator);
if (OutputContext.OperatorStartsWithLetter(Operator) ||
OutputContext.OperatorEndsWithPlusOrMinus(Operator) &&
Expression is AstUnaryPrefix nestedUnary &&
OutputContext.OperatorStartsWithPlusOrMinus(nestedUnary.Operator))
{
output.Space();
}
Expression.Print(output);
}
