symbol.h

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#ifndef __ANALYSIS_H
#define __ANALYSIS_H
 
#include "ast.h"
#include "visitor.h"
 
void type_attr_print(void* value, FILE* output);
 
void symtable_attr_print(void* value, FILE* output);
 
typedef struct Symbol
{
    enum {
        SCALAR_SYMBOL,
        ARRAY_SYMBOL,
        FUNCTION_SYMBOL
    } symbol_type;
 
    char name[MAX_ID_LEN];
    
    DecafType type;
 
    int length;
 
    ParameterList* parameters;
 
    enum {
        UNKNOWN_LOC,
        STATIC_VAR,
        STACK_PARAM,
        STACK_LOCAL
    } location;
 
    int offset;
 
    struct Symbol* next;
 
} Symbol;
 
Symbol* Symbol_new (const char* name, DecafType type);
 
Symbol* Symbol_new_array (const char* name, DecafType type, int length);
 
Symbol* Symbol_new_function (const char* name, DecafType return_type, ParameterList* parameters);
 
void Symbol_print (Symbol* symbol, FILE* output);
 
void Symbol_free (Symbol* symbol);
 
DECL_LIST_TYPE(Symbol, struct Symbol*)
 
 
typedef struct SymbolTable
{
    SymbolList* local_symbols;
 
    struct SymbolTable* parent;
 
} SymbolTable;
 
SymbolTable* SymbolTable_new ();
 
SymbolTable* SymbolTable_new_child (SymbolTable* parent);
 
void SymbolTable_insert (SymbolTable* table, Symbol* symbol);
 
Symbol* SymbolTable_lookup (SymbolTable* table, const char* name);
 
void SymbolTable_free (SymbolTable* table);
 
Symbol* lookup_symbol(ASTNode* node, const char* name);
 
NodeVisitor* BuildSymbolTablesVisitor_new ();
 
NodeVisitor* PrintSymbolsVisitor_new (FILE* output);
 
typedef struct AnalysisError
{
    char message[MAX_ERROR_LEN];    
    struct AnalysisError* next;     
} AnalysisError;
 
DECL_LIST_TYPE(Error, AnalysisError*)
 
 
void ErrorList_printf (ErrorList* list, const char* format, ...);
 
#endif