public static void Generate(
this NeuCodeGenerator generator,
NeuKeyword keyword)
{
switch (keyword.KeywordType)
{
case NeuKeywordType.Func:
generator.Append($"{keyword.Source} ");
return;
///
case NeuKeywordType.Return:
generator.Append($"\n {keyword.Source} ");
return;
///
case NeuKeywordType.True:
generator.Append($"{keyword.Source}");
return;
///
default:
throw new Exception();
}
}
public static NeuBoolLiteralExpression ParseBoolLiteralExpression(
this NeuParser parser,
ISourceLocation start,
NeuKeyword boolKeyword)
{
return(new NeuBoolLiteralExpression(
children: new Node[] { boolKeyword },
start: start,
end: parser.Tokenizer.GetLocation()));
}
///
public static NeuOperation Execute(
this NeuInterpreter interpreter,
bool inGlobalScope,
NeuKeyword kindKeyword,
NeuPatternBinding patternBinding)
{
var pattern = patternBinding.GetPattern();
if (pattern == null)
{
throw new Exception();
}
///
var binding = patternBinding.GetBinding();
if (binding == null)
{
throw new Exception();
}
///
switch (true)
{
case var _
when
pattern is NeuIdentifierPattern idPattern &&
binding is NeuInitClause initClause:
return(interpreter.Execute(inGlobalScope, kindKeyword, idPattern, initClause));
///
default:
throw new Exception();
}
}
///
public static NeuOperation Execute(
this NeuInterpreter interpreter,
bool inGlobalScope,
NeuKeyword kindKeyword,
NeuIdentifierPattern idPattern,
NeuInitClause initClause)
{
var id = idPattern.GetIdentifier();
if (id == null)
{
throw new Exception();
}
///
var name = id.Source;
if (IsNullOrWhiteSpace(name))
{
throw new Exception();
}
///
var initializer = initClause.GetInitializer();
if (initializer == null)
{
throw new Exception();
}
///
var initValue = interpreter.Execute(initializer);
///
switch (true)
{
case var _
when
inGlobalScope &&
kindKeyword.KeywordType == NeuKeywordType.Let:
var globalScopedLet = interpreter.CreateVar(name, null, null, null, initValue);
if (globalScopedLet == null)
{
throw new Exception();
}
return(globalScopedLet);
///
case var _
when
inGlobalScope &&
kindKeyword.KeywordType == NeuKeywordType.Var:
var globalScopedVar = interpreter.CreateVar(name, null, null, null, initValue);
if (globalScopedVar == null)
{
throw new Exception();
}
return(globalScopedVar);
///
case var _
when
kindKeyword.KeywordType == NeuKeywordType.Let:
var hoistedLet = interpreter.HoistVar(kindKeyword.KeywordType, name, initValue);
if (hoistedLet == null)
{
throw new Exception();
}
return(hoistedLet);
///
case var _
when
kindKeyword.KeywordType == NeuKeywordType.Var:
var hoistedVar = interpreter.HoistVar(kindKeyword.KeywordType, name, initValue);
if (hoistedVar == null)
{
throw new Exception();
}
return(hoistedVar);
///
default:
throw new Exception();
}
}
///
public NeuBoolLiteralExpression(
NeuKeyword keyword)
: base(new Node[] { keyword }, new UnknownLocation(), new UnknownLocation())
{
}