forked from Mirror/wren
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
#include <string.h>
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#include "lists.h"
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static void newList(WrenVM* vm)
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{
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wrenSetSlotNewList(vm, 0);
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}
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// Helper function to store a double in a slot then insert it into the list at
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// slot zero.
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static void insertNumber(WrenVM* vm, int index, double value)
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{
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wrenSetSlotDouble(vm, 1, value);
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wrenInsertInList(vm, 0, index, 1);
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}
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// Helper function to append a double in a slot then insert it into the list at
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// slot zero.
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static void appendNumber(WrenVM* vm, double value)
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{
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wrenSetSlotDouble(vm, 1, value);
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wrenInsertInList(vm, 0, -1, 1);
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}
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static void insert(WrenVM* vm)
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{
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wrenSetSlotNewList(vm, 0);
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wrenEnsureSlots(vm, 2);
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// Appending.
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insertNumber(vm, 0, 1.0);
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insertNumber(vm, 1, 2.0);
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insertNumber(vm, 2, 3.0);
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// Inserting.
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insertNumber(vm, 0, 4.0);
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insertNumber(vm, 1, 5.0);
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insertNumber(vm, 2, 6.0);
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// Negative indexes.
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insertNumber(vm, -1, 7.0);
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insertNumber(vm, -2, 8.0);
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insertNumber(vm, -3, 9.0);
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}
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static void get(WrenVM* vm)
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{
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int listSlot = 1;
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int index = (int)wrenGetSlotDouble(vm, 2);
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wrenGetListElement(vm, listSlot, index, 0);
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}
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static void set(WrenVM* vm)
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{
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wrenSetSlotNewList(vm, 0);
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wrenEnsureSlots(vm, 2);
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appendNumber(vm, 1.0);
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appendNumber(vm, 2.0);
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appendNumber(vm, 3.0);
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appendNumber(vm, 4.0);
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//list[2] = 33
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wrenSetSlotDouble(vm, 1, 33);
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wrenSetListElement(vm, 0, 2, 1);
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//list[-1] = 44
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wrenSetSlotDouble(vm, 1, 44);
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wrenSetListElement(vm, 0, -1, 1);
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}
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WrenForeignMethodFn listsBindMethod(const char* signature)
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{
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if (strcmp(signature, "static Lists.newList()") == 0) return newList;
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if (strcmp(signature, "static Lists.insert()") == 0) return insert;
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if (strcmp(signature, "static Lists.set()") == 0) return set;
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if (strcmp(signature, "static Lists.get(_,_)") == 0) return get;
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return NULL;
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}
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