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Allow assigning comment info to all variables

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Deukhoofd 2018-11-26 15:05:20 +01:00
parent 963245c9e7
commit 15ce180b8c
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GPG Key ID: B4C087AC81641654
3 changed files with 18 additions and 4 deletions
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8
Upsilon/Binder/Binder.cs
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@ -249,7 +249,7 @@ namespace Upsilon.Binder
return new BoundExpressionStatement(exp, s.Span);
}
private VariableSymbol TryBindVariable(string name, bool isLocal, BoundExpression assignment)
private VariableSymbol TryBindVariable(string name, bool isLocal, BoundExpression assignment, string[] commentData)
{
if (name == "_")
return null;
@ -265,6 +265,8 @@ namespace Upsilon.Binder
variable = new VariableSymbol(name, assignment.Type, isLocal);
}
variable.CommentValue = commentData;
if (isLocal)
Scope.DefineLocalVariable(variable);
else
@ -309,7 +311,7 @@ namespace Upsilon.Binder
var boundExpression = BindExpression(e.Expression);
var isLocal = e.LocalToken != null;
var boundVariable = TryBindVariable(name, isLocal, boundExpression);
var boundVariable = TryBindVariable(name, isLocal, boundExpression, e.CommentData);
if (boundVariable != null)
{
var variable = new BoundVariableSymbol(boundVariable, variableExpression.Span);
@ -329,7 +331,7 @@ namespace Upsilon.Binder
foreach (var identifierToken in s.Identifiers)
{
var boundVariable = TryBindVariable(identifierToken.Name, isLocal, assignment);
var boundVariable = TryBindVariable(identifierToken.Name, isLocal, assignment, null);
ls.Add(boundVariable);
}
return new BoundMultiAssignmentStatement(ls.ToImmutableArray(), assignment, s.Span);

13
Upsilon/Parser/Parser.cs
View File

@ -324,13 +324,21 @@ namespace Upsilon.Parser
private StatementSyntax ParseAssignmentExpression()
{
string[] commentData = null;
SyntaxToken localKeyword = null;
if (Current.Kind == SyntaxKind.LocalKeyword)
{
localKeyword = MatchToken(SyntaxKind.LocalKeyword);
commentData = localKeyword.CommentData;
}
var identifier = ParseExpression();
if (commentData == null && identifier.Kind == SyntaxKind.VariableExpression)
{
var variable = (VariableExpressionSyntax)identifier;
commentData = variable.Identifier.CommentData;
}
if (Current.Kind == SyntaxKind.Comma)
{
if (identifier.Kind != SyntaxKind.VariableExpression)
@ -352,7 +360,10 @@ namespace Upsilon.Parser
var assignmentToken = MatchToken(SyntaxKind.Equals);
var expression = ParseExpression();
return new AssignmentStatementSyntax(localKeyword, identifier, assignmentToken, expression);
return new AssignmentStatementSyntax(localKeyword, identifier, assignmentToken, expression)
{
CommentData = commentData
};
}
private StatementSyntax ParseTableAssignmentExpression(ExpressionSyntax tableExpression)

1
Upsilon/Parser/StatementSyntax/AssignmentStatementSyntax.cs
View File

@ -22,6 +22,7 @@ namespace Upsilon.Parser
public ExpressionSyntax Identifier { get; }
public SyntaxToken EqualsToken { get; }
public ExpressionSyntax Expression { get; }
public string[] CommentData { get; set; }
public override IEnumerable<SyntaxNode> ChildNodes()
{