79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
typedef enum {
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ex_label,
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ex_block,
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ex_expr, // binary expression
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ex_uexpr, // unary expression
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ex_def,
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ex_string,
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ex_float,
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ex_vector,
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ex_entity,
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ex_field,
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ex_func,
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ex_pointer,
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ex_quaternion,
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ex_int,
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} expr_type;
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typedef struct {
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statref_t *refs;
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dstatement_t *statement;
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char *name;
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} label_t;
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typedef struct {
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struct expr_s *head;
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struct expr_s **tail;
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} block_t;
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typedef struct expr_s {
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struct expr_s *next;
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expr_type type;
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int line;
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string_t file;
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int paren;
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union {
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label_t label;
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block_t block;
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struct {
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int op;
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type_t *type;
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struct expr_s *e1;
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struct expr_s *e2;
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} expr;
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def_t *def;
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char *string_val;
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float float_val;
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float vector_val[3];
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int entity_val;
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int field_val;
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int func_val;
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int pointer_val;
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float quaternion_val[4];
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int int_val;
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} e;
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} expr_t;
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expr_t *new_expr (void);
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expr_t *new_label_expr (void);
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expr_t *new_block_expr (void);
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expr_t *new_binary_expr (int op, expr_t *e1, expr_t *e2);
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expr_t *new_unary_expr (int op, expr_t *e1);
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expr_t *append_expr (expr_t *block, expr_t *e);
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void print_expr (expr_t *e);
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expr_t *binary_expr (int op, expr_t *e1, expr_t *e2);
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expr_t *unary_expr (int op, expr_t *e);
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expr_t *function_expr (expr_t *e1, expr_t *e2);
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def_t *emit_statement (int line, opcode_t *op, def_t *var_a, def_t *var_b, def_t *var_c);
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void emit_expr (expr_t *e);
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expr_t *error (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
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void warning (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
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extern int lineno_base;
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