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#include "fasm_generator.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "compiler/tree_parser/tree_parser.h"
#include "utils/memory/memory.h"
FasmLines generateFasm(SourceCode *code) {
ParsedTree *root = treeParser(code);
if (root != NULL) {
FasmLines lines = _generateFasm(root, code);
deleteParsedTree(root);
return lines;
}
const FasmLines error = {
.lines = NULL,
/*.size = ERROR_SIZE,*/
};
return error;
}
FasmLines generateFasmWithPrint(SourceCode *code) {
ParsedTree *root = treeParser(code);
if (root != NULL) {
printf("----tree parsed:\n");
printParsedTreeNode(root);
FasmLines lines = _generateFasm(root, code);
deleteParsedTree(root);
return lines;
}
fprintf(stderr, "error in tree parser\n");
const FasmLines error = {
.lines = NULL,
/*.size = ERROR_SIZE,*/
};
return error;
}
FasmLines _generateFasm(const ParsedTree *root, SourceCode *code) {
const TreeScopeMetadata *metadata = root->metadata;
FasmVariables thisVariables = {
.variables = a404m_malloc(metadata->variables_size *
sizeof(*thisVariables.variables)),
.size = metadata->variables_size,
};
size_t size = 0;
for (size_t i = 0; i < metadata->variables_size; ++i) {
const TreeDefineVariableMetadata *variable = metadata->variables[i];
FasmVariable keyValue = {
.variable = variable,
.value = size,
};
thisVariables.variables[i] = keyValue;
size += 8;
}
const size_t variables_size = 1;
FasmVariables *variables[1] = {
&thisVariables,
};
FasmLines lines = {
.lines = a404m_malloc(0),
/*.size = 0,*/
};
for (size_t i = 0; i < metadata->lines_size; ++i) {
const ParsedTree *node = metadata->lines[i];
if (!nodeToFasmLine(node, &lines, variables, variables_size, code)) {
goto RETURN_ERROR;
}
}
return lines;
RETURN_ERROR:
free(lines.lines);
const FasmLines error = {
.lines = NULL,
/*.size = ERROR_SIZE,*/
};
return error;
}
bool nodeToFasmLine(const ParsedTree *node, FasmLines *lines,
FasmVariables *variables[], size_t variables_size,
SourceCode *code) {
switch (node->token) {
case TREE_TOKEN_NONE:
case TREE_TOKEN_ROOT:
printError("Is not allowed in compiler line %s:%d", code, node->strBegin,
node->strBegin, __FILE_NAME__, __LINE__);
exit(1);
case TREE_TOKEN_GLOBAL_SCOPE:
case TREE_TOKEN_LOCAL_SCOPE: {
const TreeScopeMetadata *metadata = node->metadata;
FasmVariables thisVariables = {
.variables = a404m_malloc(metadata->variables_size *
sizeof(*thisVariables.variables)),
.size = metadata->variables_size,
};
size_t size = 0;
for (size_t i = 0; i < metadata->variables_size; ++i) {
const TreeDefineVariableMetadata *variable = metadata->variables[i];
FasmVariable keyValue = {
.variable = variable,
.value = size,
.isGlobal = node->token == TREE_TOKEN_GLOBAL_SCOPE,
};
thisVariables.variables[i] = keyValue;
size += getSizeOfVariable(variable);
}
size_t newVariables_size = variables_size + 1;
FasmVariables *newVariables[newVariables_size];
for (size_t i = 0; i < variables_size; ++i) {
newVariables[i] = variables[i];
}
newVariables[variables_size] = &thisVariables;
for (size_t i = 0; i < metadata->lines_size; ++i) {
if (!nodeToFasmLine(metadata->lines[i], lines, newVariables,
newVariables_size, code)) {
return false;
}
}
return true;
}
case TREE_TOKEN_FUNCTION_CALL: {
const TreeFunctionCallMetadata *metadata = node->metadata;
return true;
}
case TREE_TOKEN_FUNCTION: {
const TreeFunctionMetadata *metadata = node->metadata;
return true;
}
case TREE_TOKEN_IDENTIFIER: {
const TreeIdentifierMetadata *metadata = node->metadata;
const FasmVariable fasmVariable = getVariableFasmKeyValue(
metadata->variable, variables, variables_size);
if (fasmVariable.variable == NULL) {
return false;
}
FasmLine line = {
/*.label = NULL,*/
// TODO: do it
};
pushFasmLine(lines, line);
return true;
}
case TREE_TOKEN_DEFINE_VARIABLE:
case TREE_TOKEN_DEFINE_CONSTANT:
case TREE_TOKEN_VALUE_STRING:
case TREE_TOKEN_STRUCT:
}
fprintf(stderr, "Bad parsed token '%d' %s:%d", node->token, __FILE_NAME__,
__LINE__);
exit(1);
}
void pushFasmLine(FasmLines *lines, FasmLine line) {
const size_t size =
a404m_malloc_usable_size(lines->lines) / sizeof(*lines->lines);
/*if (size == lines->size) {
lines->lines =
a404m_realloc(lines->lines, (size * 2 + 1) * sizeof(*lines->lines));
}
lines->lines[lines->size] = line;
lines->size += 1;*/
}
size_t getSizeOfVariable(const TreeDefineVariableMetadata *variable) {
return 8; // TODO: do it;
}
FasmVariable getVariableFasmKeyValue(const TreeDefineVariableMetadata *variable,
FasmVariables *variables[],
size_t variables_size) {
for (size_t i = 0; i < variables_size; ++i) {
for (size_t j = 0; j < variables[i]->size; ++j) {
if (variables[i]->variables[j].variable == variable) {
return variables[i]->variables[j];
}
}
}
const FasmVariable error = {
.variable = NULL,
.value = 0,
.isGlobal = false,
};
return error;
}
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