ScriptContext::ScriptContext() : m_VariableIndex(0) , m_DataIndex(0) {
m_Functions.push_back(Function("+",OP_ADD,12,2,scriptAddOperation));
m_Functions.push_back(Function("*",OP_MUL,16,2,scriptMul));
//m_Functions.push_back(Function("/",OP_DIV,16,2));
//m_Functions.push_back(Function("-",OP_SUB,12,2));
//m_Functions.push_back(Function("sin",OP_SIN,17,1));
//m_Functions.push_back(Function("cos",OP_COS,17,1));
m_Functions.push_back(Function("=",OP_ASSIGN,1,1,scriptAssign));
m_Functions.push_back(Function("random",OP_RND,20,2,scriptRandom));
m_Functions.push_back(Function("print",OP_RND,19,1,scriptPrint));
m_Functions.push_back(Function("vector2",OP_NEW_VEC2,20,2,scriptNewVec2));
m_Constants.push_back(ConstantValue("PI",3.14159265359f));
m_Declarations.push_back(TypeDeclaration("int",DT_INT));
m_Declarations.push_back(TypeDeclaration("float",DT_FLOAT));
m_Declarations.push_back(TypeDeclaration("vec2",DT_VEC2));
m_Declarations.push_back(TypeDeclaration("vec3",DT_VEC3));
m_Declarations.push_back(TypeDeclaration("color",DT_COLOR));
}
void AstCompilationUnit::Unparse(Ostream& os, LexStream* lex_stream)
{
unsigned i;
if (debug_unparse)
os << "/*AstCompilationUnit:#" << id << "*/";
os << "// " << lex_stream -> FileName() << endl;
if (package_declaration_opt)
package_declaration_opt -> Unparse(os, lex_stream);
for (i = 0; i < NumImportDeclarations(); i++)
ImportDeclaration(i) -> Unparse(os, lex_stream);
for (i = 0; i < NumTypeDeclarations(); i++)
TypeDeclaration(i) -> Unparse(os, lex_stream);
if (debug_unparse)
os << "/*:AstCompilationUnit#" << id << "*/";
}
TypeDeclaration consumeType(TokenVector::const_iterator &token, TokenVector::const_iterator end, bool allowIdentifier, const TokenKindSet &stopTokens)
{
IndirectionVector indirections;
BaseType baseType = consumeBaseType(token, end, allowIdentifier, stopTokens);
if (!baseType.isValid())
{
return TypeDeclaration();
}
// Keep going until we run out of tokens or hit a stop token
while(token != end && (stopTokens.count(token->getKind()) == 0))
{
if (token->is(clang::tok::raw_identifier))
{
const std::string identifier(identifierString(*token));
if (identifier == "const")
{
// Is this applying to a *
if (!indirections.empty() && (indirections.back() == Indirection::Pointer))
{
// Convert to a const *
indirections.back() = Indirection::ConstPointer;
}
else
{
// Unexpected
return TypeDeclaration();
}
}
else if (allowIdentifier && (++token == end))
{
// Trailing identifier
break;
}
else
{
// Unexpected
return TypeDeclaration();
}
}
else if (token->is(clang::tok::amp))
{
indirections.push_back(Indirection::Reference);
}
else if (token->is(clang::tok::star))
{
// Assume non-const, following "const" may modify it
indirections.push_back(Indirection::Pointer);
}
else
{
// Something we don't know about
return TypeDeclaration();
}
token++;
}
return TypeDeclaration(baseType.isConst, baseType.typeName, indirections);
}