4 /* NOTE: it's a test - I'll abort() on epic-failure */
9 /* (note: 'do {} while(0)' forces the need for a semicolon after assert() */
10 #define assert(x) do { if ( !(x) ) { printf("Assertion failed: %s\n", #x); abort(); } } while(0)
12 VECTOR_MAKE(ast_value*, globals);
13 VECTOR_MAKE(ast_function*, functions);
19 ast_value *gfoo = NULL;
20 ast_value *gbar = NULL;
21 ast_value *const_3 = NULL;
22 ast_value *const_4 = NULL;
23 ast_value *vmain = NULL;
24 ast_function *fmain = NULL;
29 ir_builder *ir = NULL;
39 gfoo = ast_value_new(ctx, "foo", TYPE_FLOAT);
41 assert(globals_add(gfoo) >= 0);
43 gbar = ast_value_new(ctx, "bar", TYPE_FLOAT);
45 assert(globals_add(gbar) >= 0);
47 const_3 = ast_value_new(ctx, "3", TYPE_FLOAT);
49 assert(globals_add(const_3) >= 0);
50 const_3->isconst = true;
51 const_3->constval.vfloat = 3.0;
53 const_4 = ast_value_new(ctx, "4", TYPE_FLOAT);
55 assert(globals_add(const_4) >= 0);
56 const_4->isconst = true;
57 const_4->constval.vfloat = 4.0;
59 /* defining a function */
60 vmain = ast_value_new(ctx, "main", TYPE_FUNCTION);
62 assert(globals_add(vmain) >= 0);
63 /* This happens in ast_function_new:
64 vmain->isconst = true;
65 vmain->constval.vfunc = fmain;
66 Creating a function node connects the global to the function.
67 You still have to delete *BOTH*, deleting one will NOT delete the other,
68 it will only unlink them.
71 /* creating a function body */
72 fmain = ast_function_new(ctx, "main", vmain);
74 assert(functions_add(fmain) >= 0);
77 ba = ast_block_new(ctx);
79 assert(ast_function_blocks_add(fmain, ba));
81 /* local variable i */
82 li = ast_value_new(ctx, "i", TYPE_FLOAT);
84 assert(ast_block_locals_add(ba, li));
86 /* I realize having to provide the opcode isn't the best way to go, but,
89 exp = (ast_expression*)ast_store_new(ctx, INSTR_STORE_F, gfoo, (ast_expression*)const_3);
91 assert(ast_block_exprs_add(ba, exp));
93 exp = (ast_expression*)ast_store_new(ctx, INSTR_STORE_F, gbar, (ast_expression*)const_4);
95 assert(ast_block_exprs_add(ba, exp));
98 exp = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)gbar, (ast_expression*)gfoo);
100 exp = (ast_expression*)ast_store_new(ctx, INSTR_STORE_F, li, exp);
102 assert(ast_block_exprs_add(ba, exp));
106 /* Next up: Having the AST generate IR */
108 ir = ir_builder_new("ast_test");
112 for (i = 0; i < globals_elements; ++i) {
113 if (!ast_global_codegen(globals_data[i], ir)) {
114 assert(!"failed to generate global");
119 for (i = 0; i < functions_elements; ++i) {
120 if (!ast_function_codegen(functions_data[i], ir)) {
121 assert(!"failed to generate function");
123 if (!ir_function_finalize(functions_data[i]->ir_func))
124 assert(!"finalize on function failed...");
128 ir_builder_dump(ir, printf);
131 ir_builder_delete(ir);
134 /* Functions must be deleted FIRST since their expressions
135 * reference global variables.
137 for (i = 0; i < functions_elements; ++i) {
138 ast_function_delete(functions_data[i]);
141 mem_d(functions_data);
143 /* We must delete not only globals, but also the functions'
144 * ast_values (their type and name), that's why we added them to the globals vector.
146 for (i = 0; i < globals_elements; ++i) {
147 ast_value_delete(globals_data[i]);