44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
#include "string.h"
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#include "native_types_allocate.h"
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#include "vm_instance.h"
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#include "class_resolver.h"
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struct objectref * vm_instance_create(struct vm * vm, const char * class_name)
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{
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struct class_entry * class_entry = class_resolver_lookup_class(vm->class_hash_table.length,
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vm->class_hash_table.entry,
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(const uint8_t *)class_name,
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string_length(class_name));
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assert(class_entry != nullptr);
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struct objectref * objectref = obj_allocate(vm, class_entry->instance_fields_count);
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if (objectref != nullptr) {
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objectref->class_entry = class_entry;
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for (int i = 0; i < class_entry->instance_fields_count; i++) {
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objectref->oref[i] = nullptr;
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}
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}
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return objectref;
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}
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struct objectref * vm_instance_string_from_constant(struct vm * vm, struct constant * constant)
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{
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int32_t count = constant->utf8.length;
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struct arrayref * arrayref = prim_array_allocate(vm, 2, count);
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assert(arrayref != nullptr);
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arrayref->class_entry = nullptr; // byte[]
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arrayref->length = constant->utf8.length;
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for (int i = 0; i < constant->utf8.length; i++) {
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arrayref->u16[i] = constant->utf8.bytes[i];
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}
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struct objectref * objectref = vm_instance_create(vm, "java/lang/String");
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assert(objectref != nullptr);
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assert(objectref->class_entry->instance_fields_count >= 1);
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objectref->aref[0] = arrayref;
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return objectref;
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}
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