652 lines
17 KiB
C
652 lines
17 KiB
C
#include "lib_node.h"
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#include "engine.h"
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#include "engine_node.h"
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#include "repl_tools.h"
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#include "memory.h"
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#include "literal_array.h"
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#include <stdlib.h>
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static int nativeLoadNode(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 1) {
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interpreter->errorOutput("Incorrect number of arguments passed to loadNode\n");
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return -1;
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}
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//extract the arguments
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Literal fname = popLiteralArray(arguments);
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Literal fnameIdn = fname;
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if (IS_IDENTIFIER(fname) && parseIdentifierToValue(interpreter, &fname)) {
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freeLiteral(fnameIdn);
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}
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//check argument types
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if (!IS_STRING(fname)) {
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interpreter->errorOutput("Incorrect argument type passed to loadNode\n");
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freeLiteral(fname);
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return -1;
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}
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//load the new node
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size_t size = 0;
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char* source = readFile(AS_STRING(fname), &size);
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unsigned char* tb = compileString(source, &size);
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free((void*)source);
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EngineNode* node = ALLOCATE(EngineNode, 1);
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//BUGFIX: make an inner-interpreter
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Interpreter inner;
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//init the inner interpreter manually
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initLiteralArray(&inner.literalCache);
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inner.scope = pushScope(NULL);
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inner.bytecode = tb;
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inner.length = size;
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inner.count = 0;
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inner.codeStart = -1;
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inner.depth = interpreter->depth + 1;
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inner.panic = false;
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initLiteralArray(&inner.stack);
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inner.exports = interpreter->exports;
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inner.exportTypes = interpreter->exportTypes;
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inner.hooks = interpreter->hooks;
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setInterpreterPrint(&inner, interpreter->printOutput);
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setInterpreterAssert(&inner, interpreter->assertOutput);
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setInterpreterError(&inner, interpreter->errorOutput);
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initEngineNode(node, &inner, tb, size);
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// return the node
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Literal nodeLiteral = TO_OPAQUE_LITERAL(node, node->tag);
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pushLiteralArray(&interpreter->stack, nodeLiteral);
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//cleanup
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freeLiteralArray(&inner.stack);
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freeLiteralArray(&inner.literalCache);
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freeLiteral(fname);
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freeLiteral(nodeLiteral);
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return 1;
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}
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static int nativeInitNode(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 1) {
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interpreter->errorOutput("Incorrect number of arguments passed to initNode\n");
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return -1;
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}
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Literal node = popLiteralArray(arguments);
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Literal nodeIdn = node;
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if (IS_IDENTIFIER(node) && parseIdentifierToValue(interpreter, &node)) {
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freeLiteral(nodeIdn);
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}
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//check argument types
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if (!IS_OPAQUE(node)) {
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interpreter->errorOutput("Incorrect argument type passed to initNode\n");
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freeLiteral(node);
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return -1;
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}
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EngineNode* engineNode = AS_OPAQUE(node);
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//init the new node (and ONLY this node)
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callEngineNode(engineNode, &engine.interpreter, "onInit");
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//cleanup
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freeLiteral(node);
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return 0;
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}
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static int nativeFreeChildNode(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 2) {
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interpreter->errorOutput("Incorrect number of arguments passed to freeChildNode\n");
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return -1;
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}
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Literal index = popLiteralArray(arguments);
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Literal node = popLiteralArray(arguments);
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Literal nodeIdn = node; //annoying
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if (IS_IDENTIFIER(node) && parseIdentifierToValue(interpreter, &node)) {
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freeLiteral(nodeIdn);
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}
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//check argument types
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if (!IS_OPAQUE(node) || !IS_INTEGER(index)) {
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interpreter->errorOutput("Incorrect argument type passed to freeChildNode\n");
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freeLiteral(node);
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return -1;
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}
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EngineNode* parentNode = AS_OPAQUE(node);
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int idx = AS_INTEGER(index);
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//check bounds
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if (idx < 0 || idx >= parentNode->count) {
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interpreter->errorOutput("Node index out of bounds in freeChildNode\n");
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freeLiteral(node);
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freeLiteral(index);
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return -1;
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}
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//get the child node
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EngineNode* childNode = parentNode->children[idx];
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//free the node
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if (childNode != NULL) {
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callRecursiveEngineNode(childNode, &engine.interpreter, "onFree");
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freeEngineNode(childNode);
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}
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parentNode->children[idx] = NULL;
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//cleanup
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freeLiteral(node);
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freeLiteral(index);
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return 0;
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}
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static int nativePushNode(Interpreter* interpreter, LiteralArray* arguments) {
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//checks
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if (arguments->count != 2) {
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interpreter->errorOutput("Incorrect number of arguments passed to pushNode\n");
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return -1;
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}
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Literal child = popLiteralArray(arguments);
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Literal parent = popLiteralArray(arguments);
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Literal parentIdn = parent;
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if (IS_IDENTIFIER(parent) && parseIdentifierToValue(interpreter, &parent)) {
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freeLiteral(parentIdn);
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}
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Literal childIdn = child;
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if (IS_IDENTIFIER(child) && parseIdentifierToValue(interpreter, &child)) {
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freeLiteral(childIdn);
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}
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if (!IS_OPAQUE(parent) || !IS_OPAQUE(child)) {
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interpreter->errorOutput("Incorrect argument type passed to pushNode\n");
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freeLiteral(parent);
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freeLiteral(child);
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return -1;
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}
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//push the node
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EngineNode* parentNode = AS_OPAQUE(parent);
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EngineNode* childNode = AS_OPAQUE(child);
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pushEngineNode(parentNode, childNode);
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//no return value
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freeLiteral(parent);
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freeLiteral(child);
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return 0;
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}
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static int nativeGetNodeChild(Interpreter* interpreter, LiteralArray* arguments) {
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//checks
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if (arguments->count != 2) {
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interpreter->errorOutput("Incorrect number of arguments passed to getNode\n");
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return -1;
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}
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Literal index = popLiteralArray(arguments);
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Literal parent = popLiteralArray(arguments);
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Literal parentIdn = parent;
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if (IS_IDENTIFIER(parent) && parseIdentifierToValue(interpreter, &parent)) {
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freeLiteral(parentIdn);
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}
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if (!IS_OPAQUE(parent) || !IS_INTEGER(index)) {
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interpreter->errorOutput("Incorrect argument type passed to getNode\n");
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freeLiteral(parent);
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freeLiteral(index);
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return -1;
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}
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//push the node
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EngineNode* parentNode = AS_OPAQUE(parent);
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int intIndex = AS_INTEGER(index);
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if (intIndex < 0 || intIndex >= parentNode->count) {
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interpreter->errorOutput("index out of bounds in getNode\n");
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freeLiteral(parent);
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freeLiteral(index);
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return -1;
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}
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EngineNode* childNode = parentNode->children[intIndex];
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Literal child = TO_OPAQUE_LITERAL(childNode, childNode->tag);
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pushLiteralArray(&interpreter->stack, child);
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//no return value
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freeLiteral(parent);
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freeLiteral(child);
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freeLiteral(index);
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return 1;
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}
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static int nativeGetNodeParent(Interpreter* interpreter, LiteralArray* arguments) {
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//checks
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if (arguments->count != 1) {
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interpreter->errorOutput("Incorrect number of arguments passed to getNodeParent\n");
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return -1;
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}
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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if (!IS_OPAQUE(nodeLiteral)) {
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interpreter->errorOutput("Incorrect argument type passed to getNodeParent\n");
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freeLiteral(nodeLiteral);
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return -1;
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}
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//push the node
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EngineNode* node = AS_OPAQUE(nodeLiteral);
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EngineNode* parent = node->parent;
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Literal parentLiteral = TO_NULL_LITERAL;
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if (parent != NULL) {
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parentLiteral = TO_OPAQUE_LITERAL(parent, parent->tag);
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}
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pushLiteralArray(&interpreter->stack, parentLiteral);
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//cleanup
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freeLiteral(parentLiteral);
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freeLiteral(nodeLiteral);
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return 1;
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}
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static int nativeLoadTexture(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 2) {
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interpreter->errorOutput("Incorrect number of arguments passed to loadTextureEngineNode\n");
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return -1;
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}
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//extract the arguments
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Literal fname = popLiteralArray(arguments);
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal fnameIdn = fname;
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if (IS_IDENTIFIER(fname) && parseIdentifierToValue(interpreter, &fname)) {
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freeLiteral(fnameIdn);
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}
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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//check argument types
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if (!IS_STRING(fname) || !IS_OPAQUE(nodeLiteral)) {
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interpreter->errorOutput("Incorrect argument type passed to loadTextureEngineNode\n");
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freeLiteral(fname);
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freeLiteral(nodeLiteral);
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return -1;
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}
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//actually load TODO: number the opaques, and check the numbers
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EngineNode* node = (EngineNode*)AS_OPAQUE(nodeLiteral);
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if (node->texture != NULL) {
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freeTextureEngineNode(node);
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}
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if (loadTextureEngineNode(node, AS_STRING(fname)) != 0) {
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interpreter->errorOutput("Failed to load the texture into the EngineNode\n");
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freeLiteral(fname);
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freeLiteral(nodeLiteral);
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return -1;
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}
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//cleanup
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freeLiteral(fname);
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freeLiteral(nodeLiteral);
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return 0;
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}
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static int nativeFreeTexture(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 1) {
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interpreter->errorOutput("Incorrect number of arguments passed to freeTextureEngineNode\n");
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return -1;
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}
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//extract the arguments
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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//check argument types
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if (!IS_OPAQUE(nodeLiteral)) {
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interpreter->errorOutput("Incorrect argument type passed to freeTextureEngineNode\n");
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freeLiteral(nodeLiteral);
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return -1;
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}
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//actually load TODO: number the opaques, and check the numbers
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EngineNode* node = (EngineNode*)AS_OPAQUE(nodeLiteral);
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if (node->texture != NULL) {
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freeTextureEngineNode(node);
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}
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//cleanup
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freeLiteral(nodeLiteral);
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return 0;
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}
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static int nativeSetRect(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 5) {
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interpreter->errorOutput("Incorrect number of arguments passed to setRectEngineNode\n");
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return -1;
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}
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//extract the arguments
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Literal h = popLiteralArray(arguments);
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Literal w = popLiteralArray(arguments);
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Literal y = popLiteralArray(arguments);
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Literal x = popLiteralArray(arguments);
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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Literal xi = x;
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if (IS_IDENTIFIER(x) && parseIdentifierToValue(interpreter, &x)) {
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freeLiteral(xi);
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}
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Literal yi = y;
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if (IS_IDENTIFIER(y) && parseIdentifierToValue(interpreter, &y)) {
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freeLiteral(yi);
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}
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Literal wi = w;
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if (IS_IDENTIFIER(w) && parseIdentifierToValue(interpreter, &w)) {
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freeLiteral(wi);
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}
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Literal hi = h;
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if (IS_IDENTIFIER(h) && parseIdentifierToValue(interpreter, &h)) {
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freeLiteral(hi);
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}
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//check argument types
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if (!IS_OPAQUE(nodeLiteral) || !IS_INTEGER(x) || !IS_INTEGER(y) || !IS_INTEGER(w) || !IS_INTEGER(h)) {
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interpreter->errorOutput("Incorrect argument type passed to setRectEngineNode\n");
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freeLiteral(nodeLiteral);
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freeLiteral(x);
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freeLiteral(y);
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freeLiteral(w);
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freeLiteral(h);
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return -1;
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}
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//actually set
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EngineNode* node = (EngineNode*)AS_OPAQUE(nodeLiteral);
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SDL_Rect r = {AS_INTEGER(x), AS_INTEGER(y), AS_INTEGER(w), AS_INTEGER(h)};
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setRectEngineNode(node, r);
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//cleanup
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freeLiteral(nodeLiteral);
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freeLiteral(x);
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freeLiteral(y);
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freeLiteral(w);
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freeLiteral(h);
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return 0;
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}
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//TODO: get x, y, w, h
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static int nativeDrawNode(Interpreter* interpreter, LiteralArray* arguments) {
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if (arguments->count != 3 && arguments->count != 5) {
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interpreter->errorOutput("Incorrect number of arguments passed to drawEngineNode\n");
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return -1;
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}
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//extract the arguments
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Literal w = TO_NULL_LITERAL, h = TO_NULL_LITERAL;
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if (arguments->count == 5) {
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h = popLiteralArray(arguments);
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w = popLiteralArray(arguments);
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}
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Literal y = popLiteralArray(arguments);
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Literal x = popLiteralArray(arguments);
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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Literal xi = x;
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if (IS_IDENTIFIER(x) && parseIdentifierToValue(interpreter, &x)) {
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freeLiteral(xi);
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}
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Literal yi = y;
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if (IS_IDENTIFIER(y) && parseIdentifierToValue(interpreter, &y)) {
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freeLiteral(yi);
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}
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Literal wi = w;
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if (IS_IDENTIFIER(w) && parseIdentifierToValue(interpreter, &w)) {
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freeLiteral(wi);
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}
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Literal hi = h;
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if (IS_IDENTIFIER(h) && parseIdentifierToValue(interpreter, &h)) {
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freeLiteral(hi);
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}
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//check argument types
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if (!IS_OPAQUE(nodeLiteral) || !IS_INTEGER(x) || !IS_INTEGER(y) || (!IS_INTEGER(w) && !IS_NULL(w)) || (!IS_INTEGER(h) && !IS_NULL(h))) {
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interpreter->errorOutput("Incorrect argument type passed to drawEngineNode\n");
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freeLiteral(nodeLiteral);
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freeLiteral(x);
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freeLiteral(y);
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freeLiteral(w);
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freeLiteral(h);
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return -1;
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}
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//actually render
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EngineNode* node = (EngineNode*)AS_OPAQUE(nodeLiteral);
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SDL_Rect r = {AS_INTEGER(x), AS_INTEGER(y), 0, 0};
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if (IS_INTEGER(w) && IS_INTEGER(h)) {
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r.w = AS_INTEGER(w);
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r.h = AS_INTEGER(h);
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}
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else {
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r.w = node->rect.w;
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r.h = node->rect.h;
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}
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drawEngineNode(node, r);
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//cleanup
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freeLiteral(nodeLiteral);
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freeLiteral(x);
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freeLiteral(y);
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freeLiteral(w);
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freeLiteral(h);
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return 0;
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}
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static int nativeGetNodeTag(Interpreter* interpreter, LiteralArray* arguments) {
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//checks
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if (arguments->count != 1) {
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interpreter->errorOutput("Incorrect number of arguments passed to getNodeTag\n");
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return -1;
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}
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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if (!IS_OPAQUE(nodeLiteral)) {
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interpreter->errorOutput("Incorrect argument type passed to getNodeTag\n");
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freeLiteral(nodeLiteral);
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return -1;
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}
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//push the tag
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Literal tagLiteral = TO_INTEGER_LITERAL( ((EngineNode*)AS_OPAQUE(nodeLiteral))->tag );
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pushLiteralArray(&interpreter->stack, tagLiteral);
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//cleanup
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freeLiteral(nodeLiteral);
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freeLiteral(tagLiteral);
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return 1;
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}
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static int nativeCallNode(Interpreter* interpreter, LiteralArray* arguments) {
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//checks
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if (arguments->count != 2) {
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interpreter->errorOutput("Incorrect number of arguments passed to callEngineNode\n");
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return -1;
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}
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Literal fnName = popLiteralArray(arguments);
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Literal nodeLiteral = popLiteralArray(arguments);
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Literal nodeIdn = nodeLiteral;
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if (IS_IDENTIFIER(nodeLiteral) && parseIdentifierToValue(interpreter, &nodeLiteral)) {
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freeLiteral(nodeIdn);
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}
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Literal fnNameIdn = fnName;
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if (IS_IDENTIFIER(fnName) && parseIdentifierToValue(interpreter, &fnName)) {
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freeLiteral(fnNameIdn);
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}
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if (!IS_OPAQUE(nodeLiteral) || !IS_STRING(fnName)) {
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interpreter->errorOutput("Incorrect argument type passed to callEngineNode\n");
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freeLiteral(nodeLiteral);
|
|
freeLiteral(fnName);
|
|
return -1;
|
|
}
|
|
|
|
char* strptr = AS_STRING(fnName);
|
|
Literal fnNameIdentifier = TO_IDENTIFIER_LITERAL(copyString(strptr, strlen(strptr)), strlen(strptr));
|
|
|
|
//call the function
|
|
Literal result = callEngineNodeLiteral(AS_OPAQUE(nodeLiteral), interpreter, fnNameIdentifier);
|
|
|
|
pushLiteralArray(&interpreter->stack, result);
|
|
|
|
//cleanup
|
|
freeLiteral(nodeLiteral);
|
|
freeLiteral(fnName);
|
|
freeLiteral(result);
|
|
|
|
return 1;
|
|
}
|
|
|
|
//call the hook
|
|
typedef struct Natives {
|
|
char* name;
|
|
NativeFn fn;
|
|
} Natives;
|
|
|
|
int hookNode(Interpreter* interpreter, Literal identifier, Literal alias) {
|
|
//build the natives list
|
|
Natives natives[] = {
|
|
{"loadNode", nativeLoadNode},
|
|
{"_initNode", nativeInitNode},
|
|
{"_freeChildNode", nativeFreeChildNode},
|
|
{"_pushNode", nativePushNode},
|
|
{"_getNodeChild", nativeGetNodeChild},
|
|
{"_getNodeParent", nativeGetNodeParent},
|
|
{"_loadTexture", nativeLoadTexture},
|
|
{"_freeTexture", nativeFreeTexture},
|
|
{"_setRect", nativeSetRect},
|
|
{"_drawNode", nativeDrawNode},
|
|
{"_callNode", nativeCallNode},
|
|
// {"getNodeTag", nativeGetNodeTag}, //not needed if there's only one node type
|
|
{NULL, NULL},
|
|
};
|
|
|
|
//store the library in an aliased dictionary
|
|
if (!IS_NULL(alias)) {
|
|
//make sure the name isn't taken
|
|
if (isDelcaredScopeVariable(interpreter->scope, alias)) {
|
|
interpreter->errorOutput("Can't override an existing variable\n");
|
|
freeLiteral(alias);
|
|
return false;
|
|
}
|
|
|
|
//create the dictionary to load up with functions
|
|
LiteralDictionary* dictionary = ALLOCATE(LiteralDictionary, 1);
|
|
initLiteralDictionary(dictionary);
|
|
|
|
//load the dict with functions
|
|
for (int i = 0; natives[i].name; i++) {
|
|
Literal name = TO_STRING_LITERAL(copyString(natives[i].name, strlen(natives[i].name)), strlen(natives[i].name));
|
|
Literal func = TO_FUNCTION_LITERAL((void*)natives[i].fn, 0);
|
|
func.type = LITERAL_FUNCTION_NATIVE;
|
|
|
|
setLiteralDictionary(dictionary, name, func);
|
|
|
|
freeLiteral(name);
|
|
freeLiteral(func);
|
|
}
|
|
|
|
//build the type
|
|
Literal type = TO_TYPE_LITERAL(LITERAL_DICTIONARY, true);
|
|
Literal strType = TO_TYPE_LITERAL(LITERAL_STRING, true);
|
|
Literal fnType = TO_TYPE_LITERAL(LITERAL_FUNCTION_NATIVE, true);
|
|
TYPE_PUSH_SUBTYPE(&type, strType);
|
|
TYPE_PUSH_SUBTYPE(&type, fnType);
|
|
|
|
//set scope
|
|
Literal dict = TO_DICTIONARY_LITERAL(dictionary);
|
|
declareScopeVariable(interpreter->scope, alias, type);
|
|
setScopeVariable(interpreter->scope, alias, dict, false);
|
|
|
|
//cleanup
|
|
freeLiteral(dict);
|
|
freeLiteral(type);
|
|
return 0;
|
|
}
|
|
|
|
//default
|
|
for (int i = 0; natives[i].name; i++) {
|
|
injectNativeFn(interpreter, natives[i].name, natives[i].fn);
|
|
}
|
|
|
|
return 0;
|
|
}
|