runtime.hpp File Reference

Provides values, program builders, and reusable execution for C++20 runtime clients. Include this header and link to cel::runtime to build and evaluate programs. This library does not parse CEL source or register built-in operations. More...

#include <cel/runtime/callable.hpp>
#include <cel/runtime/dyn_segment.hpp>
#include <cel/runtime/layout.hpp>
#include <cel/runtime/raw_stack.hpp>
#include <cel/runtime/value.hpp>
#include <cel/runtime/value_type.hpp>

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Detailed Description

Provides values, program builders, and reusable execution for C++20 runtime clients. Include this header and link to cel::runtime to build and evaluate programs. This library does not parse CEL source or register built-in operations.

See also

cel::dyn_segment and cel::raw_stack for cached execution and reusable storage.

Build a checked program and reuse its typed binding:

#include <cel/runtime.hpp>
 
cel::dyn_segment builder;
builder.push_argument(0, cel::native_type<double>());
builder.op1<double, double>([](double n) { return n * 2.0; });
auto program = std::move(builder).finish();
auto bound = program.prepare<double, double>();
cel::raw_stack stack;
const auto needed =
    bound.requirements().for_prefix(stack.cursor(), stack.depth());
stack.reserve(needed.bytes.size, needed.bytes.alignment);
stack.reserve_depth(needed.slots);
auto result = bound.call(stack, 3.0); // 6.0; stack is empty again.