mirror of
https://github.com/phabelio/PHP-Parser.git
synced 2024-11-27 04:24:43 +01:00
e16513a0eb
The new dereferencing syntaxes (new Foo)->bar and (new Foo)['bar'] were
causing a shift/reduce conflict with the '(' expr ')' rule. When
(new Foo) was encountered (without dereference operators following) the
parser thus threw a parse error.
The fix simply adds a special '(' new_expr ')' rule to expr. This does not
remove the shift/reduce conflict itself, but makes it irrelevant.
This fixes issue #20.
858 lines
38 KiB
Plaintext
858 lines
38 KiB
Plaintext
%pure_parser
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%expect 2
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%left T_INCLUDE T_INCLUDE_ONCE T_EVAL T_REQUIRE T_REQUIRE_ONCE
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%left ','
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%left T_LOGICAL_OR
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%left T_LOGICAL_XOR
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%left T_LOGICAL_AND
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%right T_PRINT
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%left '=' T_PLUS_EQUAL T_MINUS_EQUAL T_MUL_EQUAL T_DIV_EQUAL T_CONCAT_EQUAL T_MOD_EQUAL T_AND_EQUAL T_OR_EQUAL T_XOR_EQUAL T_SL_EQUAL T_SR_EQUAL
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%left '?' ':'
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%left T_BOOLEAN_OR
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%left T_BOOLEAN_AND
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%left '|'
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%left '^'
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%left '&'
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%nonassoc T_IS_EQUAL T_IS_NOT_EQUAL T_IS_IDENTICAL T_IS_NOT_IDENTICAL
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%nonassoc '<' T_IS_SMALLER_OR_EQUAL '>' T_IS_GREATER_OR_EQUAL
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%left T_SL T_SR
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%left '+' '-' '.'
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%left '*' '/' '%'
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%right '!'
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%nonassoc T_INSTANCEOF
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%right '~' T_INC T_DEC T_INT_CAST T_DOUBLE_CAST T_STRING_CAST T_ARRAY_CAST T_OBJECT_CAST T_BOOL_CAST T_UNSET_CAST '@'
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%right '['
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%nonassoc T_NEW T_CLONE
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%token T_EXIT
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%token T_IF
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%left T_ELSEIF
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%left T_ELSE
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%left T_ENDIF
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%token T_LNUMBER
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%token T_DNUMBER
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%token T_STRING
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%token T_STRING_VARNAME
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%token T_VARIABLE
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%token T_NUM_STRING
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%token T_INLINE_HTML
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%token T_CHARACTER
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%token T_BAD_CHARACTER
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%token T_ENCAPSED_AND_WHITESPACE
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%token T_CONSTANT_ENCAPSED_STRING
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%token T_ECHO
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%token T_DO
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%token T_WHILE
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%token T_ENDWHILE
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%token T_FOR
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%token T_ENDFOR
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%token T_FOREACH
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%token T_ENDFOREACH
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%token T_DECLARE
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%token T_ENDDECLARE
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%token T_AS
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%token T_SWITCH
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%token T_ENDSWITCH
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%token T_CASE
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%token T_DEFAULT
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%token T_BREAK
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%token T_CONTINUE
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%token T_GOTO
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%token T_FUNCTION
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%token T_CONST
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%token T_RETURN
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%token T_TRY
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%token T_CATCH
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%token T_THROW
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%token T_USE
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%token T_INSTEADOF
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%token T_GLOBAL
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%right T_STATIC T_ABSTRACT T_FINAL T_PRIVATE T_PROTECTED T_PUBLIC
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%token T_VAR
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%token T_UNSET
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%token T_ISSET
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%token T_EMPTY
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%token T_HALT_COMPILER
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%token T_CLASS
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%token T_TRAIT
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%token T_INTERFACE
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%token T_EXTENDS
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%token T_IMPLEMENTS
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%token T_OBJECT_OPERATOR
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%token T_DOUBLE_ARROW
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%token T_LIST
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%token T_ARRAY
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%token T_CALLABLE
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%token T_CLASS_C
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%token T_TRAIT_C
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%token T_METHOD_C
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%token T_FUNC_C
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%token T_LINE
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%token T_FILE
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%token T_COMMENT
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%token T_DOC_COMMENT
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%token T_OPEN_TAG
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%token T_OPEN_TAG_WITH_ECHO
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%token T_CLOSE_TAG
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%token T_WHITESPACE
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%token T_START_HEREDOC
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%token T_END_HEREDOC
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%token T_DOLLAR_OPEN_CURLY_BRACES
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%token T_CURLY_OPEN
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%token T_PAAMAYIM_NEKUDOTAYIM
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%token T_NAMESPACE
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%token T_NS_C
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%token T_DIR
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%token T_NS_SEPARATOR
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%%
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start:
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top_statement_list { $$ = Stmt_Namespace::postprocess($1); }
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;
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top_statement_list:
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top_statement_list top_statement { pushNormalizing($1, $2); }
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| /* empty */ { init(); }
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;
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namespace_name:
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T_STRING { init($1); }
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| namespace_name T_NS_SEPARATOR T_STRING { push($1, $3); }
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;
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top_statement:
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statement { $$ = $1; }
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| function_declaration_statement { $$ = $1; }
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| class_declaration_statement { $$ = $1; }
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| T_HALT_COMPILER
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{ $$ = Stmt_HaltCompiler[$this->lexer->handleHaltCompiler()]; }
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| T_NAMESPACE namespace_name ';' { $$ = Stmt_Namespace[Name[$2], null]; }
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| T_NAMESPACE namespace_name '{' top_statement_list '}' { $$ = Stmt_Namespace[Name[$2], $4]; }
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| T_NAMESPACE '{' top_statement_list '}' { $$ = Stmt_Namespace[null, $3]; }
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| T_USE use_declarations ';' { $$ = Stmt_Use[$2]; }
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| T_CONST constant_declaration_list ';' { $$ = Stmt_Const[$2]; }
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;
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use_declarations:
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use_declarations ',' use_declaration { push($1, $3); }
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| use_declaration { init($1); }
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;
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use_declaration:
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namespace_name { $$ = Stmt_UseUse[Name[$1], null]; }
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| namespace_name T_AS T_STRING { $$ = Stmt_UseUse[Name[$1], $3]; }
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| T_NS_SEPARATOR namespace_name { $$ = Stmt_UseUse[Name[$2], null]; }
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| T_NS_SEPARATOR namespace_name T_AS T_STRING { $$ = Stmt_UseUse[Name[$2], $4]; }
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;
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constant_declaration_list:
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constant_declaration_list ',' constant_declaration { push($1, $3); }
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| constant_declaration { init($1); }
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;
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constant_declaration:
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T_STRING '=' static_scalar { $$ = Const[$1, $3]; }
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;
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inner_statement_list:
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inner_statement_list inner_statement { pushNormalizing($1, $2); }
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| /* empty */ { init(); }
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;
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inner_statement:
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statement { $$ = $1; }
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| function_declaration_statement { $$ = $1; }
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| class_declaration_statement { $$ = $1; }
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| T_HALT_COMPILER { error('__halt_compiler() can only be used from the outermost scope'); }
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;
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statement:
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'{' inner_statement_list '}' { $$ = $2; }
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| T_IF '(' expr ')' statement elseif_list else_single { $$ = Stmt_If[$3, [stmts: toArray($5), elseifs: $6, else: $7]]; }
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| T_IF '(' expr ')' ':' inner_statement_list new_elseif_list new_else_single T_ENDIF ';'
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{ $$ = Stmt_If[$3, [stmts: $6, elseifs: $7, else: $8]]; }
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| T_WHILE '(' expr ')' while_statement { $$ = Stmt_While[$3, $5]; }
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| T_DO statement T_WHILE '(' expr ')' ';' { $$ = Stmt_Do [$5, toArray($2)]; }
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| T_FOR '(' for_expr ';' for_expr ';' for_expr ')' for_statement
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{ $$ = Stmt_For[[init: $3, cond: $5, loop: $7, stmts: $9]]; }
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| T_SWITCH '(' expr ')' switch_case_list { $$ = Stmt_Switch[$3, $5]; }
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| T_BREAK ';' { $$ = Stmt_Break[null]; }
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| T_BREAK expr ';' { $$ = Stmt_Break[$2]; }
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| T_CONTINUE ';' { $$ = Stmt_Continue[null]; }
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| T_CONTINUE expr ';' { $$ = Stmt_Continue[$2]; }
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| T_RETURN ';' { $$ = Stmt_Return[null]; }
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| T_RETURN expr ';' { $$ = Stmt_Return[$2]; }
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| T_GLOBAL global_var_list ';' { $$ = Stmt_Global[$2]; }
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| T_STATIC static_var_list ';' { $$ = Stmt_Static[$2]; }
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| T_ECHO expr_list ';' { $$ = Stmt_Echo[$2]; }
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| T_INLINE_HTML { $$ = Stmt_InlineHTML[$1]; }
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| expr ';' { $$ = $1; }
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| T_UNSET '(' variables_list ')' ';' { $$ = Stmt_Unset[$3]; }
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| T_FOREACH '(' expr T_AS variable ')' foreach_statement
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{ $$ = Stmt_Foreach[$3, $5, [keyVar: null, byRef: false, stmts: $7]]; }
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| T_FOREACH '(' expr T_AS '&' variable ')' foreach_statement
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{ $$ = Stmt_Foreach[$3, $6, [keyVar: null, byRef: true, stmts: $8]]; }
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| T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW optional_ref variable ')' foreach_statement
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{ $$ = Stmt_Foreach[$3, $8, [keyVar: $5, byRef: $7, stmts: $10]]; }
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| T_DECLARE '(' declare_list ')' declare_statement { $$ = Stmt_Declare[$3, $5]; }
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| ';' { $$ = array(); /* means: no statement */ }
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| T_TRY '{' inner_statement_list '}' catches { $$ = Stmt_TryCatch[$3, $5]; }
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| T_THROW expr ';' { $$ = Stmt_Throw[$2]; }
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| T_GOTO T_STRING ';' { $$ = Stmt_Goto[$2]; }
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| T_STRING ':' { $$ = Stmt_Label[$1]; }
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;
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catches:
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catch { init($1); }
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| catches catch { push($1, $2); }
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;
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catch:
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T_CATCH '(' name T_VARIABLE ')' '{' inner_statement_list '}'
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{ $$ = Stmt_Catch[$3, parseVar($4), $7]; }
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;
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variables_list:
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variable { init($1); }
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| variables_list ',' variable { push($1, $3); }
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;
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optional_ref:
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/* empty */ { $$ = false; }
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| '&' { $$ = true; }
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;
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function_declaration_statement:
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T_FUNCTION optional_ref T_STRING '(' parameter_list ')' '{' inner_statement_list '}'
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{ $$ = Stmt_Function[$3, [byRef: $2, params: $5, stmts: $8]]; }
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;
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class_declaration_statement:
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class_entry_type T_STRING extends_from implements_list '{' class_statement_list '}'
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{ $$ = Stmt_Class[$2, [type: $1, extends: $3, implements: $4, stmts: $6]]; }
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| T_INTERFACE T_STRING interface_extends_list '{' class_statement_list '}'
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{ $$ = Stmt_Interface[$2, [extends: $3, stmts: $5]]; }
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| T_TRAIT T_STRING '{' class_statement_list '}'
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{ $$ = Stmt_Trait[$2, $4]; }
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;
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class_entry_type:
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T_CLASS { $$ = 0; }
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| T_ABSTRACT T_CLASS { $$ = Stmt_Class::MODIFIER_ABSTRACT; }
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| T_FINAL T_CLASS { $$ = Stmt_Class::MODIFIER_FINAL; }
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;
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extends_from:
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/* empty */ { $$ = null; }
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| T_EXTENDS name { $$ = $2; }
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;
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interface_extends_list:
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/* empty */ { $$ = array(); }
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| T_EXTENDS name_list { $$ = $2; }
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;
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implements_list:
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/* empty */ { $$ = array(); }
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| T_IMPLEMENTS name_list { $$ = $2; }
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;
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name_list:
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name { init($1); }
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| name_list ',' name { push($1, $3); }
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;
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for_statement:
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statement { $$ = toArray($1); }
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| ':' inner_statement_list T_ENDFOR ';' { $$ = $2; }
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;
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foreach_statement:
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statement { $$ = toArray($1); }
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| ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; }
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;
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declare_statement:
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statement { $$ = toArray($1); }
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| ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; }
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;
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declare_list:
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declare_list_element { init($1); }
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| declare_list ',' declare_list_element { push($1, $3); }
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;
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declare_list_element:
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T_STRING '=' static_scalar { $$ = Stmt_DeclareDeclare[$1, $3]; }
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;
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switch_case_list:
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'{' case_list '}' { $$ = $2; }
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| '{' ';' case_list '}' { $$ = $3; }
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| ':' case_list T_ENDSWITCH ';' { $$ = $2; }
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| ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; }
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;
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case_list:
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/* empty */ { init(); }
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| case_list case { push($1, $2); }
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;
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case:
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T_CASE expr case_separator inner_statement_list { $$ = Stmt_Case[$2, $4]; }
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| T_DEFAULT case_separator inner_statement_list { $$ = Stmt_Case[null, $3]; }
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;
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case_separator:
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':'
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| ';'
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;
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while_statement:
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statement { $$ = toArray($1); }
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| ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; }
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;
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elseif_list:
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/* empty */ { init(); }
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| elseif_list elseif { push($1, $2); }
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;
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elseif:
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T_ELSEIF '(' expr ')' statement { $$ = Stmt_ElseIf[$3, toArray($5)]; }
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;
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new_elseif_list:
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/* empty */ { init(); }
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| new_elseif_list new_elseif { push($1, $2); }
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;
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new_elseif:
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T_ELSEIF '(' expr ')' ':' inner_statement_list { $$ = Stmt_ElseIf[$3, $6]; }
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;
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else_single:
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/* empty */ { $$ = null; }
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| T_ELSE statement { $$ = Stmt_Else[toArray($2)]; }
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;
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new_else_single:
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/* empty */ { $$ = null; }
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| T_ELSE ':' inner_statement_list { $$ = Stmt_Else[$3]; }
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;
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parameter_list:
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non_empty_parameter_list { $$ = $1; }
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| /* empty */ { $$ = array(); }
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;
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non_empty_parameter_list:
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parameter { init($1); }
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| non_empty_parameter_list ',' parameter { push($1, $3); }
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;
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parameter:
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optional_class_type optional_ref T_VARIABLE
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{ $$ = Param[parseVar($3), null, $1, $2]; }
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| optional_class_type optional_ref T_VARIABLE '=' static_scalar
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{ $$ = Param[parseVar($3), $5, $1, $2]; }
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;
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optional_class_type:
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/* empty */ { $$ = null; }
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| name { $$ = $1; }
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| T_ARRAY { $$ = 'array'; }
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| T_CALLABLE { $$ = 'callable'; }
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;
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argument_list:
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non_empty_argument_list { $$ = $1; }
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| /* empty */ { $$ = array(); }
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;
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non_empty_argument_list:
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argument { init($1); }
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| non_empty_argument_list ',' argument { push($1, $3); }
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;
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argument:
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expr { $$ = Arg[$1, false]; }
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| '&' variable { $$ = Arg[$2, true]; }
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;
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|
global_var_list:
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global_var_list ',' global_var { push($1, $3); }
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| global_var { init($1); }
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;
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global_var:
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T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
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| '$' variable { $$ = Expr_Variable[$2]; }
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| '$' '{' expr '}' { $$ = Expr_Variable[$3]; }
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;
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static_var_list:
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static_var_list ',' static_var { push($1, $3); }
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| static_var { init($1); }
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;
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|
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|
static_var:
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T_VARIABLE { $$ = Stmt_StaticVar[parseVar($1), null]; }
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| T_VARIABLE '=' static_scalar { $$ = Stmt_StaticVar[parseVar($1), $3]; }
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;
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|
class_statement_list:
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class_statement_list class_statement { push($1, $2); }
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| /* empty */ { init(); }
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;
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|
class_statement:
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variable_modifiers property_declaration_list ';' { $$ = Stmt_Property[$1, $2]; }
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| T_CONST constant_declaration_list ';' { $$ = Stmt_ClassConst[$2]; }
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| method_modifiers T_FUNCTION optional_ref T_STRING '(' parameter_list ')' method_body
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{ $$ = Stmt_ClassMethod[$4, [type: $1, byRef: $3, params: $6, stmts: $8]]; }
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| T_USE name_list trait_adaptations { $$ = Stmt_TraitUse[$2, $3]; }
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;
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trait_adaptations:
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';' { $$ = array(); }
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|
| '{' trait_adaptation_list '}' { $$ = $2; }
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|
;
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|
trait_adaptation_list:
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|
/* empty */ { init(); }
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|
| trait_adaptation_list trait_adaptation { push($1, $2); }
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|
;
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|
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trait_adaptation:
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trait_method_reference_fully_qualified T_INSTEADOF name_list ';'
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{ $$ = Stmt_TraitUseAdaptation_Precedence[$1[0], $1[1], $3]; }
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| trait_method_reference T_AS member_modifier T_STRING ';'
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{ $$ = Stmt_TraitUseAdaptation_Alias[$1[0], $1[1], $3, $4]; }
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| trait_method_reference T_AS member_modifier ';'
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{ $$ = Stmt_TraitUseAdaptation_Alias[$1[0], $1[1], $3, null]; }
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| trait_method_reference T_AS T_STRING ';'
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{ $$ = Stmt_TraitUseAdaptation_Alias[$1[0], $1[1], null, $3]; }
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;
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trait_method_reference_fully_qualified:
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name T_PAAMAYIM_NEKUDOTAYIM T_STRING { $$ = array($1, $3); }
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;
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trait_method_reference:
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trait_method_reference_fully_qualified { $$ = $1; }
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| T_STRING { $$ = array(null, $1); }
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;
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method_body:
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';' /* abstract method */ { $$ = null; }
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| '{' inner_statement_list '}' { $$ = $2; }
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;
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|
variable_modifiers:
|
|
non_empty_member_modifiers { $$ = $1; }
|
|
| T_VAR { $$ = Stmt_Class::MODIFIER_PUBLIC; }
|
|
;
|
|
|
|
method_modifiers:
|
|
/* empty */ { $$ = Stmt_Class::MODIFIER_PUBLIC; }
|
|
| non_empty_member_modifiers { $$ = $1; }
|
|
;
|
|
|
|
non_empty_member_modifiers:
|
|
member_modifier { $$ = $1; }
|
|
| non_empty_member_modifiers member_modifier { Stmt_Class::verifyModifier($1, $2); $$ = $1 | $2; }
|
|
;
|
|
|
|
member_modifier:
|
|
T_PUBLIC { $$ = Stmt_Class::MODIFIER_PUBLIC; }
|
|
| T_PROTECTED { $$ = Stmt_Class::MODIFIER_PROTECTED; }
|
|
| T_PRIVATE { $$ = Stmt_Class::MODIFIER_PRIVATE; }
|
|
| T_STATIC { $$ = Stmt_Class::MODIFIER_STATIC; }
|
|
| T_ABSTRACT { $$ = Stmt_Class::MODIFIER_ABSTRACT; }
|
|
| T_FINAL { $$ = Stmt_Class::MODIFIER_FINAL; }
|
|
;
|
|
|
|
property_declaration_list:
|
|
property_declaration { init($1); }
|
|
| property_declaration_list ',' property_declaration { push($1, $3); }
|
|
;
|
|
|
|
property_declaration:
|
|
T_VARIABLE { $$ = Stmt_PropertyProperty[parseVar($1), null]; }
|
|
| T_VARIABLE '=' static_scalar { $$ = Stmt_PropertyProperty[parseVar($1), $3]; }
|
|
;
|
|
|
|
expr_list:
|
|
expr_list ',' expr { push($1, $3); }
|
|
| expr { init($1); }
|
|
;
|
|
|
|
for_expr:
|
|
/* empty */ { $$ = array(); }
|
|
| expr_list { $$ = $1; }
|
|
;
|
|
|
|
expr:
|
|
variable { $$ = $1; }
|
|
| T_LIST '(' assignment_list ')' '=' expr { $$ = Expr_AssignList[$3, $6]; }
|
|
| variable '=' expr { $$ = Expr_Assign[$1, $3]; }
|
|
| variable '=' '&' variable { $$ = Expr_AssignRef[$1, $4]; }
|
|
| variable '=' '&' new_expr { $$ = Expr_Assign[$1, $4]; } /* reference dropped intentially */
|
|
| new_expr { $$ = $1; }
|
|
| T_CLONE expr { $$ = Expr_Clone[$2]; }
|
|
| variable T_PLUS_EQUAL expr { $$ = Expr_AssignPlus [$1, $3]; }
|
|
| variable T_MINUS_EQUAL expr { $$ = Expr_AssignMinus [$1, $3]; }
|
|
| variable T_MUL_EQUAL expr { $$ = Expr_AssignMul [$1, $3]; }
|
|
| variable T_DIV_EQUAL expr { $$ = Expr_AssignDiv [$1, $3]; }
|
|
| variable T_CONCAT_EQUAL expr { $$ = Expr_AssignConcat [$1, $3]; }
|
|
| variable T_MOD_EQUAL expr { $$ = Expr_AssignMod [$1, $3]; }
|
|
| variable T_AND_EQUAL expr { $$ = Expr_AssignBitwiseAnd[$1, $3]; }
|
|
| variable T_OR_EQUAL expr { $$ = Expr_AssignBitwiseOr [$1, $3]; }
|
|
| variable T_XOR_EQUAL expr { $$ = Expr_AssignBitwiseXor[$1, $3]; }
|
|
| variable T_SL_EQUAL expr { $$ = Expr_AssignShiftLeft [$1, $3]; }
|
|
| variable T_SR_EQUAL expr { $$ = Expr_AssignShiftRight[$1, $3]; }
|
|
| variable T_INC { $$ = Expr_PostInc[$1]; }
|
|
| T_INC variable { $$ = Expr_PreInc [$2]; }
|
|
| variable T_DEC { $$ = Expr_PostDec[$1]; }
|
|
| T_DEC variable { $$ = Expr_PreDec [$2]; }
|
|
| expr T_BOOLEAN_OR expr { $$ = Expr_BooleanOr [$1, $3]; }
|
|
| expr T_BOOLEAN_AND expr { $$ = Expr_BooleanAnd[$1, $3]; }
|
|
| expr T_LOGICAL_OR expr { $$ = Expr_LogicalOr [$1, $3]; }
|
|
| expr T_LOGICAL_AND expr { $$ = Expr_LogicalAnd[$1, $3]; }
|
|
| expr T_LOGICAL_XOR expr { $$ = Expr_LogicalXor[$1, $3]; }
|
|
| expr '|' expr { $$ = Expr_BitwiseOr [$1, $3]; }
|
|
| expr '&' expr { $$ = Expr_BitwiseAnd[$1, $3]; }
|
|
| expr '^' expr { $$ = Expr_BitwiseXor[$1, $3]; }
|
|
| expr '.' expr { $$ = Expr_Concat [$1, $3]; }
|
|
| expr '+' expr { $$ = Expr_Plus [$1, $3]; }
|
|
| expr '-' expr { $$ = Expr_Minus [$1, $3]; }
|
|
| expr '*' expr { $$ = Expr_Mul [$1, $3]; }
|
|
| expr '/' expr { $$ = Expr_Div [$1, $3]; }
|
|
| expr '%' expr { $$ = Expr_Mod [$1, $3]; }
|
|
| expr T_SL expr { $$ = Expr_ShiftLeft [$1, $3]; }
|
|
| expr T_SR expr { $$ = Expr_ShiftRight[$1, $3]; }
|
|
| '+' expr %prec T_INC { $$ = Expr_UnaryPlus [$2]; }
|
|
| '-' expr %prec T_INC { $$ = Expr_UnaryMinus[$2]; }
|
|
| '!' expr { $$ = Expr_BooleanNot[$2]; }
|
|
| '~' expr { $$ = Expr_BitwiseNot[$2]; }
|
|
| expr T_IS_IDENTICAL expr { $$ = Expr_Identical [$1, $3]; }
|
|
| expr T_IS_NOT_IDENTICAL expr { $$ = Expr_NotIdentical [$1, $3]; }
|
|
| expr T_IS_EQUAL expr { $$ = Expr_Equal [$1, $3]; }
|
|
| expr T_IS_NOT_EQUAL expr { $$ = Expr_NotEqual [$1, $3]; }
|
|
| expr '<' expr { $$ = Expr_Smaller [$1, $3]; }
|
|
| expr T_IS_SMALLER_OR_EQUAL expr { $$ = Expr_SmallerOrEqual[$1, $3]; }
|
|
| expr '>' expr { $$ = Expr_Greater [$1, $3]; }
|
|
| expr T_IS_GREATER_OR_EQUAL expr { $$ = Expr_GreaterOrEqual[$1, $3]; }
|
|
| expr T_INSTANCEOF class_name_reference { $$ = Expr_Instanceof [$1, $3]; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
/* we need a separate '(' new_expr ')' rule to avoid problems caused by a s/r conflict */
|
|
| '(' new_expr ')' { $$ = $2; }
|
|
| expr '?' expr ':' expr { $$ = Expr_Ternary[$1, $3, $5]; }
|
|
| expr '?' ':' expr { $$ = Expr_Ternary[$1, null, $4]; }
|
|
| T_ISSET '(' variables_list ')' { $$ = Expr_Isset[$3]; }
|
|
| T_EMPTY '(' variable ')' { $$ = Expr_Empty[$3]; }
|
|
| T_INCLUDE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_INCLUDE]; }
|
|
| T_INCLUDE_ONCE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_INCLUDE_ONCE]; }
|
|
| T_EVAL '(' expr ')' { $$ = Expr_Eval[$3]; }
|
|
| T_REQUIRE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_REQUIRE]; }
|
|
| T_REQUIRE_ONCE expr { $$ = Expr_Include[$2, Expr_Include::TYPE_REQUIRE_ONCE]; }
|
|
| T_INT_CAST expr { $$ = Expr_Cast_Int [$2]; }
|
|
| T_DOUBLE_CAST expr { $$ = Expr_Cast_Double [$2]; }
|
|
| T_STRING_CAST expr { $$ = Expr_Cast_String [$2]; }
|
|
| T_ARRAY_CAST expr { $$ = Expr_Cast_Array [$2]; }
|
|
| T_OBJECT_CAST expr { $$ = Expr_Cast_Object [$2]; }
|
|
| T_BOOL_CAST expr { $$ = Expr_Cast_Bool [$2]; }
|
|
| T_UNSET_CAST expr { $$ = Expr_Cast_Unset [$2]; }
|
|
| T_EXIT exit_expr { $$ = Expr_Exit [$2]; }
|
|
| '@' expr { $$ = Expr_ErrorSuppress[$2]; }
|
|
| scalar { $$ = $1; }
|
|
| T_ARRAY '(' array_pair_list ')' { $$ = Expr_Array[$3]; }
|
|
| '[' array_pair_list ']' { $$ = Expr_Array[$2]; }
|
|
| '`' backticks_expr '`' { $$ = Expr_ShellExec[$2]; }
|
|
| T_PRINT expr { $$ = Expr_Print[$2]; }
|
|
| T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars '{' inner_statement_list '}'
|
|
{ $$ = Expr_Closure[[static: false, byRef: $2, params: $4, uses: $6, stmts: $8]]; }
|
|
| T_STATIC T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars '{' inner_statement_list '}'
|
|
{ $$ = Expr_Closure[[static: true, byRef: $3, params: $5, uses: $7, stmts: $9]]; }
|
|
;
|
|
|
|
new_expr:
|
|
T_NEW class_name_reference ctor_arguments { $$ = Expr_New[$2, $3]; }
|
|
;
|
|
|
|
lexical_vars:
|
|
/* empty */ { $$ = array(); }
|
|
| T_USE '(' lexical_var_list ')' { $$ = $3; }
|
|
;
|
|
|
|
lexical_var_list:
|
|
lexical_var { init($1); }
|
|
| lexical_var_list ',' lexical_var { push($1, $3); }
|
|
;
|
|
|
|
lexical_var:
|
|
optional_ref T_VARIABLE { $$ = Expr_ClosureUse[parseVar($2), $1]; }
|
|
;
|
|
|
|
function_call:
|
|
name '(' argument_list ')' { $$ = Expr_FuncCall[$1, $3]; }
|
|
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM T_STRING '(' argument_list ')'
|
|
{ $$ = Expr_StaticCall[$1, $3, $5]; }
|
|
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '{' expr '}' '(' argument_list ')'
|
|
{ $$ = Expr_StaticCall[$1, $4, $7]; }
|
|
| static_property '(' argument_list ')' {
|
|
if ($1 instanceof PHPParser_Node_Expr_StaticPropertyFetch) {
|
|
$$ = Expr_StaticCall[$1->class, Expr_Variable[$1->name], $3];
|
|
} elseif ($1 instanceof PHPParser_Node_Expr_ArrayDimFetch) {
|
|
$tmp = $1;
|
|
while ($tmp->var instanceof PHPParser_Node_Expr_ArrayDimFetch) {
|
|
$tmp = $tmp->var;
|
|
}
|
|
|
|
$$ = Expr_StaticCall[$tmp->var->class, $1, $3];
|
|
$tmp->var = Expr_Variable[$tmp->var->name];
|
|
} else {
|
|
throw new Exception;
|
|
}
|
|
}
|
|
| variable_without_objects '(' argument_list ')'
|
|
{ $$ = Expr_FuncCall[$1, $3]; }
|
|
| function_call '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
/* alternative array syntax missing intentionally */
|
|
;
|
|
|
|
class_name:
|
|
T_STATIC { $$ = Name['static']; }
|
|
| name { $$ = $1; }
|
|
;
|
|
|
|
name:
|
|
namespace_name { $$ = Name[$1]; }
|
|
| T_NS_SEPARATOR namespace_name { $$ = Name_FullyQualified[$2]; }
|
|
| T_NAMESPACE T_NS_SEPARATOR namespace_name { $$ = Name_Relative[$3]; }
|
|
;
|
|
|
|
class_name_reference:
|
|
class_name { $$ = $1; }
|
|
| dynamic_class_name_reference { $$ = $1; }
|
|
;
|
|
|
|
dynamic_class_name_reference:
|
|
object_access_for_dcnr { $$ = $1; }
|
|
| base_variable { $$ = $1; }
|
|
;
|
|
|
|
class_name_or_var:
|
|
class_name { $$ = $1; }
|
|
| reference_variable { $$ = $1; }
|
|
;
|
|
|
|
object_access_for_dcnr:
|
|
| base_variable T_OBJECT_OPERATOR object_property
|
|
{ $$ = Expr_PropertyFetch[$1, $3]; }
|
|
| object_access_for_dcnr T_OBJECT_OPERATOR object_property
|
|
{ $$ = Expr_PropertyFetch[$1, $3]; }
|
|
| object_access_for_dcnr '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
| object_access_for_dcnr '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
;
|
|
|
|
exit_expr:
|
|
/* empty */ { $$ = null; }
|
|
| '(' ')' { $$ = null; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
;
|
|
|
|
backticks_expr:
|
|
/* empty */ { $$ = array(); }
|
|
| T_ENCAPSED_AND_WHITESPACE { $$ = array(Scalar_String::parseEscapeSequences($1, '`')); }
|
|
| encaps_list { parseEncapsed($1, '`'); $$ = $1; }
|
|
;
|
|
|
|
ctor_arguments:
|
|
/* empty */ { $$ = array(); }
|
|
| '(' argument_list ')' { $$ = $2; }
|
|
;
|
|
|
|
common_scalar:
|
|
T_LNUMBER { $$ = Scalar_LNumber[Scalar_LNumber::parse($1)]; }
|
|
| T_DNUMBER { $$ = Scalar_DNumber[Scalar_DNumber::parse($1)]; }
|
|
| T_CONSTANT_ENCAPSED_STRING { $$ = Scalar_String::create($1, $attributes); }
|
|
| T_LINE { $$ = Scalar_LineConst[]; }
|
|
| T_FILE { $$ = Scalar_FileConst[]; }
|
|
| T_DIR { $$ = Scalar_DirConst[]; }
|
|
| T_CLASS_C { $$ = Scalar_ClassConst[]; }
|
|
| T_TRAIT_C { $$ = Scalar_TraitConst[]; }
|
|
| T_METHOD_C { $$ = Scalar_MethodConst[]; }
|
|
| T_FUNC_C { $$ = Scalar_FuncConst[]; }
|
|
| T_NS_C { $$ = Scalar_NSConst[]; }
|
|
| T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC
|
|
{ $$ = Scalar_String[Scalar_String::parseDocString($1, $2)]; }
|
|
| T_START_HEREDOC T_END_HEREDOC
|
|
{ $$ = Scalar_String['']; }
|
|
| name { $$ = Expr_ConstFetch[$1]; }
|
|
;
|
|
|
|
static_scalar: /* compile-time evaluated scalars */
|
|
common_scalar { $$ = $1; }
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM T_STRING { $$ = Expr_ClassConstFetch[$1, $3]; }
|
|
| '+' static_scalar { $$ = Expr_UnaryPlus[$2]; }
|
|
| '-' static_scalar { $$ = Expr_UnaryMinus[$2]; }
|
|
| T_ARRAY '(' static_array_pair_list ')' { $$ = Expr_Array[$3]; }
|
|
| '[' static_array_pair_list ']' { $$ = Expr_Array[$2]; }
|
|
;
|
|
|
|
scalar:
|
|
common_scalar { $$ = $1; }
|
|
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM T_STRING { $$ = Expr_ClassConstFetch[$1, $3]; }
|
|
| '"' encaps_list '"'
|
|
{ parseEncapsed($2, '"'); $$ = Scalar_Encapsed[$2]; }
|
|
| T_START_HEREDOC encaps_list T_END_HEREDOC
|
|
{ parseEncapsedDoc($2); $$ = Scalar_Encapsed[$2]; }
|
|
;
|
|
|
|
static_array_pair_list:
|
|
/* empty */ { $$ = array(); }
|
|
| non_empty_static_array_pair_list optional_comma { $$ = $1; }
|
|
;
|
|
|
|
optional_comma:
|
|
/* empty */
|
|
| ','
|
|
;
|
|
|
|
non_empty_static_array_pair_list:
|
|
non_empty_static_array_pair_list ',' static_array_pair { push($1, $3); }
|
|
| static_array_pair { init($1); }
|
|
;
|
|
|
|
static_array_pair:
|
|
static_scalar T_DOUBLE_ARROW static_scalar { $$ = Expr_ArrayItem[$3, $1, false]; }
|
|
| static_scalar { $$ = Expr_ArrayItem[$1, null, false]; }
|
|
;
|
|
|
|
variable:
|
|
object_access { $$ = $1; }
|
|
| base_variable { $$ = $1; }
|
|
| function_call { $$ = $1; }
|
|
| new_expr_array_deref { $$ = $1; }
|
|
;
|
|
|
|
new_expr_array_deref:
|
|
'(' new_expr ')' '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$2, $5]; }
|
|
| new_expr_array_deref '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
/* alternative array syntax missing intentionally */
|
|
;
|
|
|
|
object_access:
|
|
variable_or_new_expr T_OBJECT_OPERATOR object_property
|
|
{ $$ = Expr_PropertyFetch[$1, $3]; }
|
|
| variable_or_new_expr T_OBJECT_OPERATOR object_property '(' argument_list ')'
|
|
{ $$ = Expr_MethodCall[$1, $3, $5]; }
|
|
| object_access '(' argument_list ')' { $$ = Expr_FuncCall[$1, $3]; }
|
|
| object_access '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
| object_access '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
;
|
|
|
|
variable_or_new_expr:
|
|
variable { $$ = $1; }
|
|
| '(' new_expr ')' { $$ = $2; }
|
|
;
|
|
|
|
variable_without_objects:
|
|
reference_variable { $$ = $1; }
|
|
| '$' variable_without_objects { $$ = Expr_Variable[$2]; }
|
|
;
|
|
|
|
base_variable:
|
|
variable_without_objects { $$ = $1; }
|
|
| static_property { $$ = $1; }
|
|
;
|
|
|
|
static_property:
|
|
class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' reference_variable
|
|
{ $$ = Expr_StaticPropertyFetch[$1, $4]; }
|
|
| static_property_with_arrays { $$ = $1; }
|
|
;
|
|
|
|
static_property_with_arrays:
|
|
class_name_or_var T_PAAMAYIM_NEKUDOTAYIM T_VARIABLE
|
|
{ $$ = Expr_StaticPropertyFetch[$1, parseVar($3)]; }
|
|
| class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' '{' expr '}'
|
|
{ $$ = Expr_StaticPropertyFetch[$1, $5]; }
|
|
| static_property_with_arrays '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
| static_property_with_arrays '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
;
|
|
|
|
reference_variable:
|
|
reference_variable '[' dim_offset ']' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
| reference_variable '{' expr '}' { $$ = Expr_ArrayDimFetch[$1, $3]; }
|
|
| T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
|
|
| '$' '{' expr '}' { $$ = Expr_Variable[$3]; }
|
|
;
|
|
|
|
dim_offset:
|
|
/* empty */ { $$ = null; }
|
|
| expr { $$ = $1; }
|
|
;
|
|
|
|
object_property:
|
|
T_STRING { $$ = $1; }
|
|
| '{' expr '}' { $$ = $2; }
|
|
| variable_without_objects { $$ = $1; }
|
|
;
|
|
|
|
assignment_list:
|
|
assignment_list ',' assignment_list_element { push($1, $3); }
|
|
| assignment_list_element { init($1); }
|
|
;
|
|
|
|
assignment_list_element:
|
|
variable { $$ = $1; }
|
|
| T_LIST '(' assignment_list ')' { $$ = $3; }
|
|
| /* empty */ { $$ = null; }
|
|
;
|
|
|
|
array_pair_list:
|
|
/* empty */ { $$ = array(); }
|
|
| non_empty_array_pair_list optional_comma { $$ = $1; }
|
|
;
|
|
|
|
non_empty_array_pair_list:
|
|
non_empty_array_pair_list ',' array_pair { push($1, $3); }
|
|
| array_pair { init($1); }
|
|
;
|
|
|
|
array_pair:
|
|
expr T_DOUBLE_ARROW expr { $$ = Expr_ArrayItem[$3, $1, false]; }
|
|
| expr { $$ = Expr_ArrayItem[$1, null, false]; }
|
|
| expr T_DOUBLE_ARROW '&' variable { $$ = Expr_ArrayItem[$4, $1, true]; }
|
|
| '&' variable { $$ = Expr_ArrayItem[$2, null, true]; }
|
|
;
|
|
|
|
encaps_list:
|
|
encaps_list encaps_var { push($1, $2); }
|
|
| encaps_list T_ENCAPSED_AND_WHITESPACE { push($1, $2); }
|
|
| encaps_var { init($1); }
|
|
| T_ENCAPSED_AND_WHITESPACE encaps_var { init($1, $2); }
|
|
;
|
|
|
|
encaps_var:
|
|
T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
|
|
| T_VARIABLE '[' encaps_var_offset ']' { $$ = Expr_ArrayDimFetch[Expr_Variable[parseVar($1)], $3]; }
|
|
| T_VARIABLE T_OBJECT_OPERATOR T_STRING { $$ = Expr_PropertyFetch[Expr_Variable[parseVar($1)], $3]; }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Expr_Variable[$2]; }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Expr_Variable[$2]; }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
|
|
{ $$ = Expr_ArrayDimFetch[Expr_Variable[$2], $4]; }
|
|
| T_CURLY_OPEN variable '}' { $$ = $2; }
|
|
;
|
|
|
|
encaps_var_offset:
|
|
T_STRING { $$ = Scalar_String[$1]; }
|
|
| T_NUM_STRING { $$ = Scalar_String[$1]; }
|
|
| T_VARIABLE { $$ = Expr_Variable[parseVar($1)]; }
|
|
;
|
|
|
|
%%
|