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Fixed: correctly resolve storable symbols

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This commit is contained in:
arookas 2016-02-01 14:03:56 -05:00
parent 6f1dec212b
commit dc223e5c26
1 changed files with 16 additions and 26 deletions
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42
ssc/context.cs
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@ -98,26 +98,14 @@ namespace arookas {
return DeclareVariable(node.Name, node.Modifiers);
}
sunVariableSymbol DeclareVariable(sunIdentifier node, sunSymbolModifiers modifiers) {
var name = MangleSymbolName(node.Value, false, (modifiers & sunSymbolModifiers.Local) != 0);
#if SSC_PACK_VARS
if (Scopes.Top.GetIsDeclared(name)) {
throw new sunRedeclaredVariableException(node);
}
#else
var local = (modifiers & sunSymbolModifiers.Local) != 0;
var name = MangleSymbolName(node.Value, false, local);
if (Scopes.Any(i => i.GetIsDeclared(name))) {
throw new sunRedeclaredVariableException(node);
}
#endif
var symbol = Scopes.DeclareVariable(name);
if (Scopes.Top.Type == sunScopeType.Script) { // global-scope variables are added to the symbol table
#if SSC_PACK_VARS
// only add the variable symbol if there isn't one with this index already
if (!SymbolTable.Variables.Any(i => i.Index == symbol.Index)) {
SymbolTable.Add(new sunVariableSymbol(String.Format("global{0}", symbol.Index), symbol.Display, symbol.Index));
}
#else
SymbolTable.Add(symbol);
#endif
}
return symbol;
}
@ -125,27 +113,29 @@ namespace arookas {
return DeclareConstant(node.Name, node.Expression, node.Modifiers);
}
sunConstantSymbol DeclareConstant(sunIdentifier node, sunExpression expression, sunSymbolModifiers modifiers) {
var name = MangleSymbolName(node.Value, false, (modifiers & sunSymbolModifiers.Local) != 0);
#if SSC_PACK_VARS
if (Scopes.Top.GetIsDeclared(name)) {
throw new sunRedeclaredVariableException(node);
}
#else
var local = (modifiers & sunSymbolModifiers.Local) != 0;
var name = MangleSymbolName(node.Value, false, local);
if (Scopes.Any(i => i.GetIsDeclared(name))) {
throw new sunRedeclaredVariableException(node);
}
#endif
return Scopes.DeclareConstant(name, expression);
}
public sunStorableSymbol ResolveStorable(sunIdentifier node) {
var global = node.Value;
var local = MangleSymbolName(global, false, true);
var symbol = ResolveStorable(local);
if (symbol != null) {
return symbol;
}
symbol = ResolveStorable(global);
if (symbol != null) {
return symbol;
}
return null;
}
sunStorableSymbol ResolveStorable(string name) {
for (int i = Scopes.Count - 1; i >= 0; --i) {
var symbol = Scopes[i].ResolveStorable(local);
if (symbol != null) {
return symbol;
}
symbol = Scopes[i].ResolveStorable(global);
var symbol = Scopes[i].ResolveStorable(name);
if (symbol != null) {
return symbol;
}