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- added a compiler-side workaround for the formerly static methods of FLevelLocals.

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LevelLocals on the left side of.a function call will now always be remapped to 'Level', which will either remap to the same-named instance variable or the global deprecated one.

In a few degenerate cases where there is a conflicting local variable named 'level' it may error out but that is unavoidable here but this is very unlikely.
This commit is contained in:
Christoph Oelckers 2019-01-29 02:04:31 +01:00
commit f9239f6e0f
8 changed files with 132 additions and 117 deletions
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11
src/scripting/zscript/zcc_compile.cpp
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@ -3290,12 +3290,10 @@ static FxExpression *ModifyAssign(FxBinary *operation, FxExpression *left)
//
//==========================================================================
FxExpression *ZCCCompiler::ConvertNode(ZCC_TreeNode *ast)
FxExpression *ZCCCompiler::ConvertNode(ZCC_TreeNode *ast, bool substitute)
{
if (ast == nullptr) return nullptr;
// Note: Do not call 'Simplify' here because that function tends to destroy identifiers due to lack of context in which to resolve them.
// The Fx nodes created here will be better suited for that.
switch (ast->NodeType)
{
case AST_ExprFuncCall:
@ -3317,7 +3315,7 @@ FxExpression *ZCCCompiler::ConvertNode(ZCC_TreeNode *ast)
case AST_ExprMemberAccess:
{
auto ema = static_cast<ZCC_ExprMemberAccess *>(fcall->Function);
return new FxMemberFunctionCall(ConvertNode(ema->Left), ema->Right, ConvertNodeList(args, fcall->Parameters), *ast);
return new FxMemberFunctionCall(ConvertNode(ema->Left, true), ema->Right, ConvertNodeList(args, fcall->Parameters), *ast);
}
case AST_ExprBinary:
@ -3382,8 +3380,9 @@ FxExpression *ZCCCompiler::ConvertNode(ZCC_TreeNode *ast)
case AST_ExprID:
{
auto id = static_cast<ZCC_ExprID *>(ast);
return new FxIdentifier(id->Identifier, *ast);
auto id = static_cast<ZCC_ExprID *>(ast)->Identifier;
if (id == NAME_LevelLocals && substitute) id = NAME_Level; // All static methods of FLevelLocals are now non-static so remap the name right here before passing it to the backend.
return new FxIdentifier(id, *ast);
}
case AST_ExprConstant: