2 * This file is part of cparser.
3 * Copyright (C) 2012 Matthias Braun <matze@braunis.de>
12 typedef struct expression_base_t expression_base_t;
13 typedef struct literal_expression_t literal_expression_t;
14 typedef struct string_literal_expression_t string_literal_expression_t;
15 typedef struct funcname_expression_t funcname_expression_t;
16 typedef struct compound_literal_expression_t compound_literal_expression_t;
17 typedef struct reference_expression_t reference_expression_t;
18 typedef struct call_argument_t call_argument_t;
19 typedef struct call_expression_t call_expression_t;
20 typedef struct binary_expression_t binary_expression_t;
21 typedef struct unary_expression_t unary_expression_t;
22 typedef struct select_expression_t select_expression_t;
23 typedef struct array_access_expression_t array_access_expression_t;
24 typedef struct typeprop_expression_t typeprop_expression_t;
25 typedef struct conditional_expression_t conditional_expression_t;
26 typedef struct statement_expression_t statement_expression_t;
27 typedef struct designator_t designator_t;
28 typedef struct offsetof_expression_t offsetof_expression_t;
29 typedef struct va_start_expression_t va_start_expression_t;
30 typedef struct va_arg_expression_t va_arg_expression_t;
31 typedef struct va_copy_expression_t va_copy_expression_t;
32 typedef struct builtin_constant_expression_t builtin_constant_expression_t;
33 typedef struct builtin_types_compatible_expression_t builtin_types_compatible_expression_t;
34 typedef struct classify_type_expression_t classify_type_expression_t;
35 typedef struct label_address_expression_t label_address_expression_t;
36 typedef union expression_t expression_t;
38 typedef struct initializer_base_t initializer_base_t;
39 typedef struct initializer_list_t initializer_list_t;
40 typedef struct initializer_value_t initializer_value_t;
41 typedef struct initializer_designator_t initializer_designator_t;
42 typedef union initializer_t initializer_t;
44 typedef struct statement_base_t statement_base_t;
45 typedef struct compound_statement_t compound_statement_t;
46 typedef struct return_statement_t return_statement_t;
47 typedef struct if_statement_t if_statement_t;
48 typedef struct switch_statement_t switch_statement_t;
49 typedef struct declaration_statement_t declaration_statement_t;
50 typedef struct expression_statement_t expression_statement_t;
51 typedef struct computed_goto_statement_t computed_goto_statement_t;
52 typedef struct goto_statement_t goto_statement_t;
53 typedef struct label_statement_t label_statement_t;
54 typedef struct case_label_statement_t case_label_statement_t;
55 typedef struct do_while_statement_t do_while_statement_t;
56 typedef struct for_statement_t for_statement_t;
57 typedef struct asm_argument_t asm_argument_t;
58 typedef struct asm_clobber_t asm_clobber_t;
59 typedef struct asm_label_t asm_label_t;
60 typedef struct asm_statement_t asm_statement_t;
61 typedef struct ms_try_statement_t ms_try_statement_t;
62 typedef struct leave_statement_t leave_statement_t;
63 typedef union statement_t statement_t;
65 typedef struct translation_unit_t translation_unit_t;
68 * Initialize the AST construction.
77 void print_expression(const expression_t *expression);
78 void print_initializer(const initializer_t *initializer);
79 void print_ast(const translation_unit_t *unit);
80 void print_indent(void);
81 void print_declaration(const entity_t *entity);
82 void print_entity(const entity_t *entity);
83 void change_indent(int delta);
85 typedef enum expression_classification_t {
89 } expression_classification_t;
92 * Returns true when an initializer contains only constants/linker_constant
95 expression_classification_t is_constant_initializer(const initializer_t *initializer);
98 * Returns true if a given expression is a compile time
101 * @param expression the expression to check
103 expression_classification_t is_constant_expression(const expression_t *expression);
106 * Checks if an expression is a constant/known value to the linker. Examples:
107 * - all constant/linker constant expression casted to a pointer type
108 * - "&x", with x being a global variable.
109 * - "array" or "a.array" in case array is an array and array and a,
110 * respectively is an object with link time constant address
112 expression_classification_t is_linker_constant(const expression_t *expression);
114 long fold_constant_to_int(const expression_t *expression);
115 bool fold_constant_to_bool(const expression_t *expression);
116 bool constant_is_negative(const expression_t *constant);
119 * the type of a literal is usually the biggest type that can hold the value.
120 * Since this is backend dependent the parses needs this call exposed.
121 * Works for EXPR_LITERAL_* expressions.
123 void determine_literal_type(literal_expression_t *literal);