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Added dictionaries {}

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Objects are now separate from {} dictionaries

the . operator now only indexes fields on objects, the [] operator can only be used on objects if the __index or __newindex functions are defined

Additionally 4 new instructions have been added to the VM: OP_NEWDICT, OP_INDEX, OP_INCINDEX, and OP_NEWINDEX.

The syntax to create a dictionary is as follows { <key> : <value>, <otherkey> : <othervalue> } eg. { "hello" : "world", "foo" : 1337 }

The Lexer & Parser was extended to add the TOKEN_COLON ':' token.
This commit is contained in:
CPunch
2020-12-09 20:32:42 -06:00
parent 6445dae04c
commit 181ef8a18c
11 changed files with 290 additions and 90 deletions
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9
src/cobj.h
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@@ -13,6 +13,7 @@ typedef uint32_t cosmo_Flag;
typedef enum {
COBJ_STRING,
COBJ_OBJECT,
COBJ_DICT, // dictionary
COBJ_FUNCTION,
COBJ_CFUNCTION,
// internal use
@@ -49,6 +50,11 @@ typedef struct CObjObject {
struct CObjObject *proto; // protoobject, describes the behavior of the object
} CObjObject;
typedef struct CObjDict { // dictionary, a wrapper for CTable
CommonHeader; // "is a" CObj
CTable tbl;
} CObjDict;
typedef struct CObjFunction {
CommonHeader; // "is a" CObj
CChunk chunk;
@@ -109,6 +115,7 @@ void cosmoO_free(CState *state, CObj* obj);
bool cosmoO_equal(CObj* obj1, CObj* obj2);
CObjObject *cosmoO_newObject(CState *state);
CObjDict *cosmoO_newDictionary(CState *state);
CObjFunction *cosmoO_newFunction(CState *state);
CObjCFunction *cosmoO_newCFunction(CState *state, CosmoCFunction func);
CObjMethod *cosmoO_newMethod(CState *state, CObjClosure *func, CObjObject *obj);
@@ -119,6 +126,8 @@ CObjUpval *cosmoO_newUpvalue(CState *state, CValue *val);
bool cosmoO_getObject(CState *state, CObjObject *object, CValue key, CValue *val);
void cosmoO_setObject(CState *state, CObjObject *object, CValue key, CValue val);
bool cosmoO_indexObject(CState *state, CObjObject *object, CValue key, CValue *val);
bool cosmoO_newIndexObject(CState *state, CObjObject *object, CValue key, CValue val);
void cosmoO_setUserData(CState *state, CObjObject *object, void *p);
void *cosmoO_getUserData(CState *state, CObjObject *object);