src/as_analyzer.c


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#include "as_analyzer.h"

#include <stddef.h>
#include <string.h>

struct symTableEntry {
    const char * name;
    size_t offset;
};

const char * composeSectionLabel(Allocator alct, const char * section, const char * name) {
    size_t sectionLen = strlen(section);
    size_t nameLen = strlen(name);
    size_t sz = sectionLen + nameLen;
    char * buf = allocate(alct, sz + 1);
    memcpy(buf, section, sectionLen);
    memcpy(buf + sectionLen, name, nameLen);
    buf[sz] = '\0';
    return buf;
}

void processSectionLabel(Allocator alct, Prog prog) {
    const char * section = "";
    Stmt* stmts = prog->stmts->stmts;
    for (size_t i = 0; ; i++) {
        if (stmts[i] == NULL) break;
        if (stmts[i]->label == NULL) continue;
        const char* name = stmts[i]->label->name;
        if (name[0] == '.') {
            stmts[i]->label->name = composeSectionLabel(alct, section, name);
        } else {
            section = name;
            continue;
        }
    }
}

size_t instrSize(Instr instr) {
    // TODO
    return 0;
}

SymTableEntry* analyzeProg(Allocator alct, Prog prog) {
    processSectionLabel(alct, prog);
    // TODO
    return NULL;
}