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#pragma once
#include <string>
namespace cps::detail {
// Single source of truth for the built-in functions: name, arity and return
// type. emitExpr checks arity against this table before dispatching, and
// getExprTypeInfo reads the return type from it.
struct BuiltinInfo {
const char *Name;
unsigned Arity;
const char *ReturnTypeName;
};
inline constexpr BuiltinInfo Builtins[] = {
{"LENGTH", 1, "INTEGER"},
{"MID", 3, "STRING"},
{"RIGHT", 2, "STRING"},
{"LEFT", 2, "STRING"},
{"LCASE", 1, "STRING"},
{"UCASE", 1, "STRING"},
{"ASC", 1, "INTEGER"},
{"CHR", 1, "STRING"},
{"IS_NUM", 1, "BOOLEAN"},
{"NUM_TO_STR", 1, "STRING"},
{"STR_TO_NUM", 1, "REAL"},
{"EOF", 1, "BOOLEAN"},
};
inline const BuiltinInfo *findBuiltin(const std::string &Name) {
for (const auto &B : Builtins) {
if (Name == B.Name) return &B;
}
return nullptr;
}
} // namespace cps::detail
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