ruby/builtin.c at master · ruby/ruby

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	#include "internal.h"
	#include "vm_core.h"
	#include "iseq.h"
	#include "builtin.h"

	#ifdef CROSS_COMPILING

	#define INCLUDED_BY_BUILTIN_C 1
	#include "mini_builtin.c"

	#else

	#include "builtin_binary.inc"

	static const unsigned char *
	bin4feature(const struct builtin_binary bb, const char feature, size_t *psize)
	{
	*psize = bb->bin_size;
	return strcmp(bb->feature, feature) ? NULL : bb->bin;
	}

	static const unsigned char*
	builtin_lookup(const char feature, size_t psize)
	{
	static int index = 0;
	const unsigned char *bin = bin4feature(&builtin_binary[index++], feature, psize);

	// usually, `builtin_binary` order is loading order at miniruby.
	for (const struct builtin_binary *bb = &builtin_binary[0]; bb->feature &&! bin; bb++) {
	bin = bin4feature(bb++, feature, psize);
	}
	return bin;
	}

	void
	rb_load_with_builtin_functions(const char feature_name, const struct rb_builtin_function table)
	{
	// search binary
	size_t size;
	const unsigned char *bin = builtin_lookup(feature_name, &size);
	if (! bin) {
	rb_bug("builtin_lookup: can not find %s\n", feature_name);
	}

	// load binary
	rb_vm_t *vm = GET_VM();
	if (vm->builtin_function_table != NULL) rb_bug("vm->builtin_function_table should be NULL.");
	vm->builtin_function_table = table;
	vm->builtin_inline_index = 0;
	const rb_iseq_t iseq = rb_iseq_ibf_load_bytes((const char )bin, size);
	vm->builtin_function_table = NULL;

	// exec
	rb_iseq_eval(rb_iseq_check(iseq));
	}

	#endif

	void
	Init_builtin(void)
	{
	// nothing
	}

	void
	Init_builtin_features(void)
	{
	rb_load_with_builtin_functions("gem_prelude", NULL);
	}

ruby / ruby Public