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https://github.com/zekexiao/pocketlang.git
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2713aaba35
at this point only binary operators are implemented, unary are yet to do. getters and setters for native classes implemented with the names @getter, and @setter (however the names or arity aren't validated at the moment TODO:)
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* Copyright (c) 2020-2022 Thakee Nathees
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* Copyright (c) 2021-2022 Pocketlang Contributors
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* Distributed Under The MIT License
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*/
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#include "modules.h"
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// A DUMMY MODULE TO TEST NATIVE INTERFACE AND CLASSES.
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typedef struct {
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double val;
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} Dummy;
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void* _newDummy() {
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Dummy* dummy = NEW_OBJ(Dummy);
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ASSERT(dummy != NULL, "malloc failed.");
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dummy->val = 0;
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return dummy;
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}
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void _deleteDummy(void* ptr) {
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Dummy* dummy = (Dummy*)ptr;
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FREE_OBJ(dummy);
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}
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DEF(_dummyGetter, "") {
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const char* name = pkGetSlotString(vm, 1, NULL);
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Dummy* self = (Dummy*)pkGetSelf(vm);
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if (strcmp("val", name) == 0) {
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pkSetSlotNumber(vm, 0, self->val);
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return;
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}
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}
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DEF(_dummySetter, "") {
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const char* name = pkGetSlotString(vm, 1, NULL);
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Dummy* self = (Dummy*)pkGetSelf(vm);
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if (strcmp("val", name) == 0) {
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double val;
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if (!pkValidateSlotNumber(vm, 2, &val)) return;
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self->val = val;
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return;
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}
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}
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DEF(_dummyEq, "") {
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// TODO: Currently there is no way of getting another native instance
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// So, it's impossible to check self == other. So for now checking with
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// number.
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double value;
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if (!pkValidateSlotNumber(vm, 1, &value)) return;
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Dummy* self = (Dummy*)pkGetSelf(vm);
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pkSetSlotBool(vm, 0, value == self->val);
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}
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DEF(_dummyGt, "") {
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// TODO: Currently there is no way of getting another native instance
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// So, it's impossible to check self == other. So for now checking with
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// number.
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double value;
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if (!pkValidateSlotNumber(vm, 1, &value)) return;
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Dummy* self = (Dummy*)pkGetSelf(vm);
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pkSetSlotBool(vm, 0, self->val > value);
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}
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DEF(_dummyMethod,
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"Dummy.a_method(n1:num, n2:num) -> num\n"
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"A dummy method to check dummy method calls. Will take 2 number arguments "
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"and return the multiplication.") {
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double n1, n2;
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if (!pkValidateSlotNumber(vm, 1, &n1)) return;
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if (!pkValidateSlotNumber(vm, 2, &n2)) return;
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pkSetSlotNumber(vm, 0, n1 * n2);
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}
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void registerModuleDummy(PKVM* vm) {
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PkHandle* dummy = pkNewModule(vm, "dummy");
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PkHandle* cls_dummy = pkNewClass(vm, "Dummy", NULL, dummy,
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_newDummy, _deleteDummy);
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pkClassAddMethod(vm, cls_dummy, "@getter", _dummyGetter, 1);
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pkClassAddMethod(vm, cls_dummy, "@setter", _dummySetter, 2);
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pkClassAddMethod(vm, cls_dummy, "==", _dummyEq, 1);
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pkClassAddMethod(vm, cls_dummy, ">", _dummyGt, 1);
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pkClassAddMethod(vm, cls_dummy, "a_method", _dummyMethod, 2);
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pkReleaseHandle(vm, cls_dummy);
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pkRegisterModule(vm, dummy);
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pkReleaseHandle(vm, dummy);
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}
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