77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
#include <vslc.h>
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// Externally visible, for the generator
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extern tlhash_t *global_names;
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extern char **string_list;
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extern size_t n_string_list, stringc;
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// Implementation choices, only relevant internally
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static void find_globals ( void );
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/** @param function Function's symbol table entry
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* @param root Function's root node */
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static void bind_names ( symbol_t *function, node_t *root );
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void
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create_symbol_table ( void )
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{
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/* TODO: traverse the syntax tree and create the symbol table */
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// ! Example code solely to demonstrate usage of tlhash. Make sure to remove
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// ! or comment this out when implementing your solution.
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// Initialize table
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tlhash_t *my_table = (tlhash_t*)malloc(sizeof(tlhash_t));
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tlhash_init(my_table, 64);
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char *my_key0 = "key"; // Keep in mind that these are stack allocated for simplicity, yours should not
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char *my_val0 = "valuable"; // Also, I'm using strings as values, you will be using symbol_t pointers
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char *my_key1 = "another_key";
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char *my_val1 = "more valuable";
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// Insert some values to the table. Remember that the length of a string
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// interpreted as an array is the string length plus one '\0' character
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tlhash_insert(my_table, my_key0, strlen(my_key0)+1, my_val0);
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tlhash_insert(my_table, my_key1, strlen(my_key1)+1, my_val1);
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// Iterate keys and lookup their values
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size_t size = tlhash_size(my_table);
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char **keys = (char **)malloc(size);
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tlhash_keys(my_table, keys);
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char *val;
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for (int i = 0; i < size; i++) {
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tlhash_lookup(my_table, keys[i], strlen(keys[i])+1, &val);
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printf("my_table[%s] = \"%s\"\n", keys[i], val);
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}
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// Free allocated memory when done with the symbol table
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tlhash_finalize(my_table);
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free(my_table);
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free(keys);
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}
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void
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print_symbol_table ( void )
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{
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/* TODO: output its contents */
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}
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void
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destroy_symbol_table ( void )
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{
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/* TODO: release memory allocated to the symbol table */
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}
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void
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find_globals ( void )
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{
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/* TODO: Populate symbol table with global variables and functions */
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}
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void
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bind_names ( symbol_t *function, node_t *root )
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{
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/* TODO: Bind names and string literals in local symbol table */
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}
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