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Added some node functionality to scripts

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This commit is contained in:
Kayne Ruse
2022-10-07 10:25:09 +01:00
parent ecaf554b9a
commit 6b5cd7f580
5 changed files with 306 additions and 19 deletions
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268
core/lib_engine.c
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@@ -74,6 +74,7 @@ static int nativeInitWindow(Interpreter* interpreter, LiteralArray* arguments) {
return 0;
}
//TODO: perhaps a returns argument would be better?
static int nativeLoadRootNode(Interpreter* interpreter, LiteralArray* arguments) {
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments passed to loadRootNode\n");
@@ -83,6 +84,11 @@ static int nativeLoadRootNode(Interpreter* interpreter, LiteralArray* arguments)
//extract the arguments
Literal fname = popLiteralArray(arguments);
Literal fnameIdn = fname;
if (IS_IDENTIFIER(fname) && parseIdentifierToValue(interpreter, &fname)) {
freeLiteral(fnameIdn);
}
//check argument types
if (!IS_STRING(fname)) {
interpreter->errorOutput("Incorrect argument type passed to loadRootNode\n");
@@ -108,28 +114,265 @@ static int nativeLoadRootNode(Interpreter* interpreter, LiteralArray* arguments)
engine.rootNode = ALLOCATE(EngineNode, 1);
//BUGFIX
unsigned char* originalTb = engine.interpreter.bytecode;
size_t originalSize = engine.interpreter.length;
int originalCount = engine.interpreter.count;
int originalCodeStart = engine.interpreter.codeStart;
//BUGFIX: make an inner-interpreter
Interpreter inner;
initEngineNode(engine.rootNode, &engine.interpreter, tb, size);
//init the inner interpreter manually
initLiteralArray(&inner.literalCache);
inner.scope = pushScope(NULL);
inner.bytecode = tb;
inner.length = size;
inner.count = 0;
inner.codeStart = -1;
inner.depth = interpreter->depth + 1;
inner.panic = false;
initLiteralArray(&inner.stack);
inner.exports = interpreter->exports;
inner.exportTypes = interpreter->exportTypes;
inner.hooks = interpreter->hooks;
setInterpreterPrint(&inner, interpreter->printOutput);
setInterpreterAssert(&inner, interpreter->assertOutput);
setInterpreterError(&inner, interpreter->errorOutput);
engine.interpreter.bytecode = originalTb;
engine.interpreter.length = originalSize;
engine.interpreter.count = originalCount;
engine.interpreter.codeStart = originalCodeStart;
initEngineNode(engine.rootNode, &inner, tb, size);
//init the new node
callEngineNode(engine.rootNode, &engine.interpreter, "onInit");
//cleanup
freeLiteralArray(&inner.stack);
freeLiteralArray(&inner.literalCache);
freeLiteral(fname);
return 0;
}
static int nativeLoadNode(Interpreter* interpreter, LiteralArray* arguments) {
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments passed to loadNode\n");
return -1;
}
//extract the arguments
Literal fname = popLiteralArray(arguments);
Literal fnameIdn = fname;
if (IS_IDENTIFIER(fname) && parseIdentifierToValue(interpreter, &fname)) {
freeLiteral(fnameIdn);
}
//check argument types
if (!IS_STRING(fname)) {
interpreter->errorOutput("Incorrect argument type passed to loadNode\n");
freeLiteral(fname);
return -1;
}
//load the new node
size_t size = 0;
char* source = readFile(AS_STRING(fname), &size);
unsigned char* tb = compileString(source, &size);
free((void*)source);
EngineNode* node = ALLOCATE(EngineNode, 1);
//BUGFIX: make an inner-interpreter
Interpreter inner;
//init the inner interpreter manually
initLiteralArray(&inner.literalCache);
inner.scope = pushScope(NULL);
inner.bytecode = tb;
inner.length = size;
inner.count = 0;
inner.codeStart = -1;
inner.depth = interpreter->depth + 1;
inner.panic = false;
initLiteralArray(&inner.stack);
inner.exports = interpreter->exports;
inner.exportTypes = interpreter->exportTypes;
inner.hooks = interpreter->hooks;
setInterpreterPrint(&inner, interpreter->printOutput);
setInterpreterAssert(&inner, interpreter->assertOutput);
setInterpreterError(&inner, interpreter->errorOutput);
initEngineNode(node, &inner, tb, size);
//NOTE: initNode() must be called manually
// return the node
Literal nodeLiteral = TO_OPAQUE_LITERAL(node, -1);
pushLiteralArray(&interpreter->stack, nodeLiteral);
//cleanup
freeLiteralArray(&inner.stack);
freeLiteralArray(&inner.literalCache);
freeLiteral(fname);
freeLiteral(nodeLiteral);
return 1;
}
static int nativeInitNode(Interpreter* interpreter, LiteralArray* arguments) {
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments passed to initNode\n");
return -1;
}
Literal node = popLiteralArray(arguments);
Literal nodeIdn = node; //annoying
if (!parseIdentifierToValue(interpreter, &node)) {
interpreter->errorOutput("Failed to parse node identifier to value\n");
freeLiteral(node);
return -1;
}
freeLiteral(nodeIdn);
EngineNode* engineNode = AS_OPAQUE(node);
//init the new node
callEngineNode(engineNode, &engine.interpreter, "onInit");
//cleanup
freeLiteral(node);
return 0;
}
static int nativeFreeNode(Interpreter* interpreter, LiteralArray* arguments) {
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments passed to freeNode\n");
return -1;
}
Literal node = popLiteralArray(arguments);
Literal nodeIdn = node; //annoying
if (!parseIdentifierToValue(interpreter, &node)) {
interpreter->errorOutput("Failed to parse node identifier to value\n");
freeLiteral(node);
return -1;
}
freeLiteral(nodeIdn);
EngineNode* engineNode = AS_OPAQUE(node);
//free the node
callEngineNode(engineNode, &engine.interpreter, "onFree");
freeEngineNode(engineNode); //tombstones this node
//cleanup
freeLiteral(node);
return 0;
}
static int nativePushNode(Interpreter* interpreter, LiteralArray* arguments) {
//checks
if (arguments->count != 2) {
interpreter->errorOutput("Incorrect number of arguments passed to pushNode\n");
return -1;
}
Literal child = popLiteralArray(arguments);
Literal parent = popLiteralArray(arguments);
Literal parentIdn = parent; //annoying
Literal childIdn = child;
if (!parseIdentifierToValue(interpreter, &parent)) {
interpreter->errorOutput("Failed to parse parent identifier to value\n");
freeLiteral(parent);
freeLiteral(child);
return -1;
}
if (!parseIdentifierToValue(interpreter, &child)) {
interpreter->errorOutput("Failed to parse child identifier to value\n");
freeLiteral(parent);
freeLiteral(child);
return -1;
}
freeLiteral(parentIdn);
freeLiteral(childIdn);
if (!IS_OPAQUE(parent) || !IS_OPAQUE(child)) {
interpreter->errorOutput("Incorrect argument type passed to pushNode\n");
freeLiteral(parent);
freeLiteral(child);
return -1;
}
//push the node
EngineNode* parentNode = AS_OPAQUE(parent);
EngineNode* childNode = AS_OPAQUE(child);
pushEngineNode(parentNode, childNode);
//no return value
freeLiteral(parent);
freeLiteral(child);
return 0;
}
static int nativeGetNode(Interpreter* interpreter, LiteralArray* arguments) {
//checks
if (arguments->count != 2) {
interpreter->errorOutput("Incorrect number of arguments passed to getNode\n");
return -1;
}
Literal index = popLiteralArray(arguments);
Literal parent = popLiteralArray(arguments);
Literal parentIdn = parent; //annoying
if (!parseIdentifierToValue(interpreter, &parent)) {
interpreter->errorOutput("Failed to parse parent identifier to value\n");
freeLiteral(parent);
freeLiteral(index);
return -1;
}
freeLiteral(parentIdn);
if (!IS_OPAQUE(parent) || !IS_INTEGER(index)) {
interpreter->errorOutput("Incorrect argument type passed to getNode\n");
freeLiteral(parent);
freeLiteral(index);
return -1;
}
//push the node
EngineNode* parentNode = AS_OPAQUE(parent);
int intIndex = AS_INTEGER(index);
if (intIndex < 0 || intIndex >= parentNode->count) {
interpreter->errorOutput("index out of bounds in getNode\n");
freeLiteral(parent);
freeLiteral(index);
return -1;
}
EngineNode* childNode = &parentNode->children[intIndex];
Literal child = TO_OPAQUE_LITERAL(childNode, -1);
pushLiteralArray(&interpreter->stack, child);
//no return value
freeLiteral(parent);
freeLiteral(child);
freeLiteral(index);
return 1;
}
//call the hook
typedef struct Natives {
char* name;
@@ -141,6 +384,11 @@ int hookEngine(Interpreter* interpreter, Literal identifier, Literal alias) {
Natives natives[] = {
{"initWindow", nativeInitWindow},
{"loadRootNode", nativeLoadRootNode},
{"loadNode", nativeLoadNode},
{"initNode", nativeInitNode},
{"freeNode", nativeFreeNode},
{"pushNode", nativePushNode},
{"getNode", nativeGetNode},
{NULL, NULL}
};