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/*
* Copyright 2014 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
typedef struct _source_elements_t source_elements_t;
typedef struct _expression_t expression_t;
typedef struct _statement_t statement_t;
typedef struct {
BOOL is_num;
union {
BOOL b;
double n;
} u;
} ccval_t;
typedef struct _parser_ctx_t {
const WCHAR *begin;
const WCHAR *end;
const WCHAR *ptr;
script_ctx_t *script;
source_elements_t *source;
BOOL nl;
BOOL implicit_nl_semicolon;
BOOL is_html;
BOOL lexer_error;
HRESULT hres;
ccval_t ccval;
unsigned cc_if_depth;
heap_pool_t heap;
} parser_ctx_t;
HRESULT script_parse(script_ctx_t*,const WCHAR*,const WCHAR*,BOOL,parser_ctx_t**) DECLSPEC_HIDDEN;
void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
static inline void *parser_alloc(parser_ctx_t *ctx, DWORD size)
{
return heap_pool_alloc(&ctx->heap, size);
}
static inline void *parser_alloc_tmp(parser_ctx_t *ctx, DWORD size)
{
return heap_pool_alloc(&ctx->script->tmp_heap, size);
}
BOOL is_identifier_char(WCHAR) DECLSPEC_HIDDEN;
BOOL unescape(WCHAR*) DECLSPEC_HIDDEN;
HRESULT parse_decimal(const WCHAR**,const WCHAR*,double*) DECLSPEC_HIDDEN;
typedef enum {
LT_DOUBLE,
LT_STRING,
LT_BOOL,
LT_NULL,
LT_REGEXP
}literal_type_t;
typedef struct {
literal_type_t type;
union {
double dval;
const WCHAR *wstr;
BOOL bval;
struct {
const WCHAR *str;
DWORD str_len;
DWORD flags;
} regexp;
} u;
} literal_t;
literal_t *parse_regexp(parser_ctx_t*) DECLSPEC_HIDDEN;
literal_t *new_boolean_literal(parser_ctx_t*,BOOL) DECLSPEC_HIDDEN;
typedef struct _variable_declaration_t {
const WCHAR *identifier;
expression_t *expr;
struct _variable_declaration_t *next;
struct _variable_declaration_t *global_next; /* for compiler */
} variable_declaration_t;
typedef enum {
STAT_BLOCK,
STAT_BREAK,
STAT_CONTINUE,
STAT_EMPTY,
STAT_EXPR,
STAT_FOR,
STAT_FORIN,
STAT_IF,
STAT_LABEL,
STAT_RETURN,
STAT_SWITCH,
STAT_THROW,
STAT_TRY,
STAT_VAR,
STAT_WHILE,
STAT_WITH
} statement_type_t;
struct _statement_t {
statement_type_t type;
statement_t *next;
};
typedef struct {
statement_t stat;
statement_t *stat_list;
} block_statement_t;
typedef struct {
statement_t stat;
variable_declaration_t *variable_list;
} var_statement_t;
typedef struct {
statement_t stat;
expression_t *expr;
} expression_statement_t;
typedef struct {
statement_t stat;
expression_t *expr;
statement_t *if_stat;
statement_t *else_stat;
} if_statement_t;
typedef struct {
statement_t stat;
BOOL do_while;
expression_t *expr;
statement_t *statement;
} while_statement_t;
typedef struct {
statement_t stat;
variable_declaration_t *variable_list;
expression_t *begin_expr;
expression_t *expr;
expression_t *end_expr;
statement_t *statement;
} for_statement_t;
typedef struct {
statement_t stat;
variable_declaration_t *variable;
expression_t *expr;
expression_t *in_expr;
statement_t *statement;
} forin_statement_t;
typedef struct {
statement_t stat;
const WCHAR *identifier;
} branch_statement_t;
typedef struct {
statement_t stat;
expression_t *expr;
statement_t *statement;
} with_statement_t;
typedef struct {
statement_t stat;
const WCHAR *identifier;
statement_t *statement;
} labelled_statement_t;
typedef struct _case_clausule_t {
expression_t *expr;
statement_t *stat;
struct _case_clausule_t *next;
} case_clausule_t;
typedef struct {
statement_t stat;
expression_t *expr;
case_clausule_t *case_list;
} switch_statement_t;
typedef struct {
const WCHAR *identifier;
statement_t *statement;
} catch_block_t;
typedef struct {
statement_t stat;
statement_t *try_statement;
catch_block_t *catch_block;
statement_t *finally_statement;
} try_statement_t;
typedef enum {
EXPR_COMMA,
EXPR_OR,
EXPR_AND,
EXPR_BOR,
EXPR_BXOR,
EXPR_BAND,
EXPR_INSTANCEOF,
EXPR_IN,
EXPR_ADD,
EXPR_SUB,
EXPR_MUL,
EXPR_DIV,
EXPR_MOD,
EXPR_DELETE,
EXPR_VOID,
EXPR_TYPEOF,
EXPR_MINUS,
EXPR_PLUS,
EXPR_POSTINC,
EXPR_POSTDEC,
EXPR_PREINC,
EXPR_PREDEC,
EXPR_EQ,
EXPR_EQEQ,
EXPR_NOTEQ,
EXPR_NOTEQEQ,
EXPR_LESS,
EXPR_LESSEQ,
EXPR_GREATER,
EXPR_GREATEREQ,
EXPR_BITNEG,
EXPR_LOGNEG,
EXPR_LSHIFT,
EXPR_RSHIFT,
EXPR_RRSHIFT,
EXPR_ASSIGN,
EXPR_ASSIGNLSHIFT,
EXPR_ASSIGNRSHIFT,
EXPR_ASSIGNRRSHIFT,
EXPR_ASSIGNADD,
EXPR_ASSIGNSUB,
EXPR_ASSIGNMUL,
EXPR_ASSIGNDIV,
EXPR_ASSIGNMOD,
EXPR_ASSIGNAND,
EXPR_ASSIGNOR,
EXPR_ASSIGNXOR,
EXPR_COND,
EXPR_ARRAY,
EXPR_MEMBER,
EXPR_NEW,
EXPR_CALL,
EXPR_THIS,
EXPR_FUNC,
EXPR_IDENT,
EXPR_ARRAYLIT,
EXPR_PROPVAL,
EXPR_LITERAL
} expression_type_t;
struct _expression_t {
expression_type_t type;
};
typedef struct _parameter_t {
const WCHAR *identifier;
struct _parameter_t *next;
} parameter_t;
struct _source_elements_t {
statement_t *statement;
statement_t *statement_tail;
};
typedef struct _function_expression_t {
expression_t expr;
const WCHAR *identifier;
const WCHAR *event_target;
parameter_t *parameter_list;
source_elements_t *source_elements;
const WCHAR *src_str;
DWORD src_len;
struct _function_expression_t *next; /* for compiler */
} function_expression_t;
typedef struct {
expression_t expr;
expression_t *expression1;
expression_t *expression2;
} binary_expression_t;
typedef struct {
expression_t expr;
expression_t *expression;
} unary_expression_t;
typedef struct {
expression_t expr;
expression_t *expression;
expression_t *true_expression;
expression_t *false_expression;
} conditional_expression_t;
typedef struct {
expression_t expr;
expression_t *expression;
const WCHAR *identifier;
} member_expression_t;
typedef struct _argument_t {
expression_t *expr;
struct _argument_t *next;
} argument_t;
typedef struct {
expression_t expr;
expression_t *expression;
argument_t *argument_list;
} call_expression_t;
typedef struct {
expression_t expr;
const WCHAR *identifier;
} identifier_expression_t;
typedef struct {
expression_t expr;
literal_t *literal;
} literal_expression_t;
typedef struct _array_element_t {
int elision;
expression_t *expr;
struct _array_element_t *next;
} array_element_t;
typedef struct {
expression_t expr;
array_element_t *element_list;
int length;
} array_literal_expression_t;
typedef struct _prop_val_t {
literal_t *name;
expression_t *value;
struct _prop_val_t *next;
} prop_val_t;
typedef struct {
expression_t expr;
prop_val_t *property_list;
} property_value_expression_t;
BOOL try_parse_ccval(parser_ctx_t*,ccval_t*) DECLSPEC_HIDDEN;
BOOL parse_cc_expr(parser_ctx_t*) DECLSPEC_HIDDEN;
static inline ccval_t ccval_num(double n)
{
ccval_t r;
r.is_num = TRUE;
r.u.n = n;
return r;
}
static inline ccval_t ccval_bool(BOOL b)
{
ccval_t r;
r.is_num = FALSE;
r.u.b = b;
return r;
}
static inline BOOL get_ccbool(ccval_t v)
{
return v.is_num ? v.u.n != 0 : v.u.b;
}
static inline double get_ccnum(ccval_t v)
{
return v.is_num ? v.u.n : v.u.b;
}