TorqueGameEngines/Torque3D
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tscript change

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Adds the ability to declare defaults for function arguments

eg
function testFunc(%x = 1, %y = 1)
{
    return %x + %y;
}

can now be called as
testFunc(10) and it will return the value of 11.
This commit is contained in:
marauder2k7 2025-11-15 17:34:33 +00:00
parent 7e64493dbf
commit b0f8a5f9bd
8 changed files with 1375 additions and 1206 deletions
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24
Engine/source/console/torquescript/astNodes.cpp
View file

@ -1529,6 +1529,19 @@ U32 FunctionDeclStmtNode::compileStmt(CodeStream& codeStream, U32 ip)
CodeBlock::smInFunction = false;
// check for argument setup
for (VarNode* walk = args; walk; walk = (VarNode*)((StmtNode*)walk)->getNext())
{
if (walk->defaultValue)
{
TypeReq walkType = walk->defaultValue->getPreferredType();
if (walkType == TypeReqNone)
walkType = TypeReqString;
ip = walk->defaultValue->compile(codeStream, ip, walkType);
}
}
codeStream.emit(OP_FUNC_DECL);
codeStream.emitSTE(fnName);
codeStream.emitSTE(nameSpace);
@ -1538,11 +1551,22 @@ U32 FunctionDeclStmtNode::compileStmt(CodeStream& codeStream, U32 ip)
const U32 endIp = codeStream.emit(0);
codeStream.emit(argc);
const U32 localNumVarsIP = codeStream.emit(0);
for (VarNode* walk = args; walk; walk = (VarNode*)((StmtNode*)walk)->getNext())
{
StringTableEntry name = walk->varName;
codeStream.emit(getFuncVars(dbgLineNumber)->lookup(name, dbgLineNumber));
}
// check for argument setup
for (VarNode* walk = args; walk; walk = (VarNode*)((StmtNode*)walk)->getNext())
{
U32 flags = 0;
if (walk->defaultValue) flags |= 0x1;
codeStream.emit(flags);
}
CodeBlock::smInFunction = true;
ip = compileBlock(stmts, codeStream, ip);