1222 lines
53 KiB
Plaintext
1222 lines
53 KiB
Plaintext
%{
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package main
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import (
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"bytes"
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"fmt"
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"os"
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"io"
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)
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type node struct {
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name string
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children []node
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attributes map[string]string
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}
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func (n node) String() string {
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buf := new(bytes.Buffer)
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n.print(buf, " ")
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return buf.String()
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}
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func (n node) print(out io.Writer, indent string) {
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if (len(n.attributes) > 0) {
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fmt.Fprintf(out, "\n%v%v %s", indent, n.name, n.attributes)
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} else {
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fmt.Fprintf(out, "\n%v%v", indent, n.name)
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}
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for _, nn := range n.children {
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nn.print(out, indent + " ")
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}
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}
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func Node(name string) node {
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return node{name: name, attributes: make(map[string]string)}
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}
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func (n node) append(nn...node) node {
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n.children = append(n.children, nn...)
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return n
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}
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func (n node) attribute(key string, value string) node {
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n.attributes[key] = value
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return n
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}
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%}
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%union{
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node node
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token string
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value string
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}
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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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%right T_YIELD
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%right T_DOUBLE_ARROW
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%right T_YIELD_FROM
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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 T_POW_EQUAL
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%left '?' ':'
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%right T_COALESCE
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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 T_SPACESHIP
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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 T_POW
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%right '['
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%nonassoc T_NEW T_CLONE
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%left T_NOELSE
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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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%right T_STATIC T_ABSTRACT T_FINAL T_PRIVATE T_PROTECTED T_PUBLIC
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%type <token> $unk
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%token <token> T_INCLUDE
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%token <token> T_INCLUDE_ONCE
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%token <token> T_EXIT
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%token <token> T_IF
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%token <token> T_LNUMBER
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%token <token> T_DNUMBER
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%token <token> T_STRING
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%token <token> T_STRING_VARNAME
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%token <token> T_VARIABLE
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%token <token> T_NUM_STRING
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%token <token> T_INLINE_HTML
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%token <token> T_CHARACTER
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%token <token> T_BAD_CHARACTER
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%token <token> T_ENCAPSED_AND_WHITESPACE
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%token <token> T_CONSTANT_ENCAPSED_STRING
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%token <token> T_ECHO
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%token <token> T_DO
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%token <token> T_WHILE
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%token <token> T_ENDWHILE
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%token <token> T_FOR
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%token <token> T_ENDFOR
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%token <token> T_FOREACH
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%token <token> T_ENDFOREACH
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%token <token> T_DECLARE
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%token <token> T_ENDDECLARE
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%token <token> T_AS
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%token <token> T_SWITCH
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%token <token> T_ENDSWITCH
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%token <token> T_CASE
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%token <token> T_DEFAULT
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%token <token> T_BREAK
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%token <token> T_CONTINUE
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%token <token> T_GOTO
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%token <token> T_FUNCTION
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%token <token> T_CONST
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%token <token> T_RETURN
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%token <token> T_TRY
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%token <token> T_CATCH
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%token <token> T_FINALLY
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%token <token> T_THROW
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%token <token> T_USE
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%token <token> T_INSTEADOF
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%token <token> T_GLOBAL
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%token <token> T_VAR
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%token <token> T_UNSET
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%token <token> T_ISSET
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%token <token> T_EMPTY
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%token <token> T_HALT_COMPILER
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%token <token> T_CLASS
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%token <token> T_TRAIT
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%token <token> T_INTERFACE
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%token <token> T_EXTENDS
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%token <token> T_IMPLEMENTS
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%token <token> T_OBJECT_OPERATOR
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%token <token> T_DOUBLE_ARROW
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%token <token> T_LIST
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%token <token> T_ARRAY
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%token <token> T_CALLABLE
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%token <token> T_CLASS_C
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%token <token> T_TRAIT_C
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%token <token> T_METHOD_C
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%token <token> T_FUNC_C
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%token <token> T_LINE
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%token <token> T_FILE
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%token <token> T_COMMENT
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%token <token> T_DOC_COMMENT
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%token <token> T_OPEN_TAG
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%token <token> T_OPEN_TAG_WITH_ECHO
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%token <token> T_CLOSE_TAG
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%token <token> T_WHITESPACE
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%token <token> T_START_HEREDOC
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%token <token> T_END_HEREDOC
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%token <token> T_DOLLAR_OPEN_CURLY_BRACES
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%token <token> T_CURLY_OPEN
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%token <token> T_PAAMAYIM_NEKUDOTAYIM
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%token <token> T_NAMESPACE
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%token <token> T_NS_C
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%token <token> T_DIR
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%token <token> T_NS_SEPARATOR
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%token <token> T_ELLIPSIS
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%token <token> T_EVAL
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%token <token> T_REQUIRE
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%token <token> T_REQUIRE_ONCE
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%token <token> T_LOGICAL_OR
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%token <token> T_LOGICAL_XOR
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%token <token> T_LOGICAL_AND
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%token <token> T_INSTANCEOF
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%token <token> T_NEW
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%token <token> T_CLONE
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%token <token> T_ELSEIF
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%token <token> T_ELSE
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%token <token> T_ENDIF
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%token <token> T_PRINT
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%token <token> T_YIELD
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%token <token> T_STATIC
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%token <token> T_ABSTRACT
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%token <token> T_FINAL
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%token <token> T_PRIVATE
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%token <token> T_PROTECTED
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%token <token> T_PUBLIC
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%type <value> class_modifier
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%type <value> is_reference
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%type <value> is_variadic
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%type <value> returns_ref
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%type <value> reserved_non_modifiers
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%type <value> semi_reserved
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%type <node> top_statement namespace_name name statement function_declaration_statement
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%type <node> class_declaration_statement trait_declaration_statement
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%type <node> interface_declaration_statement interface_extends_list
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%type <node> group_use_declaration inline_use_declarations inline_use_declaration
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%type <node> mixed_group_use_declaration use_declaration unprefixed_use_declaration
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%type <node> unprefixed_use_declarations const_decl inner_statement
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%type <node> expr optional_expr while_statement for_statement foreach_variable
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%type <node> foreach_statement declare_statement finally_statement unset_variable variable
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%type <node> extends_from parameter optional_type argument expr_without_variable global_var
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%type <node> static_var class_statement trait_adaptation trait_precedence trait_alias
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%type <node> absolute_trait_method_reference trait_method_reference property echo_expr
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%type <node> new_expr anonymous_class class_name class_name_reference simple_variable
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%type <node> internal_functions_in_yacc
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%type <node> exit_expr scalar backticks_expr lexical_var function_call member_name property_name
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%type <node> variable_class_name dereferencable_scalar constant dereferencable
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%type <node> callable_expr callable_variable static_member new_variable
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%type <node> encaps_var encaps_var_offset isset_variables
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%type <node> top_statement_list use_declarations const_list inner_statement_list if_stmt
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%type <node> alt_if_stmt for_exprs switch_case_list global_var_list static_var_list
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%type <node> echo_expr_list unset_variables catch_name_list catch_list parameter_list class_statement_list
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%type <node> implements_list case_list if_stmt_without_else
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%type <node> non_empty_parameter_list argument_list non_empty_argument_list property_list
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%type <node> class_const_list class_const_decl name_list trait_adaptations method_body non_empty_for_exprs
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%type <node> ctor_arguments alt_if_stmt_without_else trait_adaptation_list lexical_vars
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%type <node> lexical_var_list encaps_list
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%type <node> array_pair non_empty_array_pair_list array_pair_list possible_array_pair
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%type <node> isset_variable type return_type type_expr
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%type <node> identifier
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%type <node> variable_modifiers
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%type <node> method_modifiers non_empty_member_modifiers member_modifier
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%type <node> class_modifiers use_type
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%%
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/////////////////////////////////////////////////////////////////////////
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start:
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top_statement_list { fmt.Println($1) }
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;
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reserved_non_modifiers:
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T_INCLUDE {$$=$1} | T_INCLUDE_ONCE {$$=$1} | T_EVAL {$$=$1} | T_REQUIRE {$$=$1} | T_REQUIRE_ONCE {$$=$1} | T_LOGICAL_OR {$$=$1} | T_LOGICAL_XOR {$$=$1} | T_LOGICAL_AND {$$=$1}
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| T_INSTANCEOF {$$=$1} | T_NEW {$$=$1} | T_CLONE {$$=$1} | T_EXIT {$$=$1} | T_IF {$$=$1} | T_ELSEIF {$$=$1} | T_ELSE {$$=$1} | T_ENDIF {$$=$1} | T_ECHO {$$=$1} | T_DO {$$=$1} | T_WHILE {$$=$1} | T_ENDWHILE {$$=$1}
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| T_FOR {$$=$1} | T_ENDFOR {$$=$1} | T_FOREACH {$$=$1} | T_ENDFOREACH {$$=$1} | T_DECLARE {$$=$1} | T_ENDDECLARE {$$=$1} | T_AS {$$=$1} | T_TRY {$$=$1} | T_CATCH {$$=$1} | T_FINALLY {$$=$1}
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| T_THROW {$$=$1} | T_USE {$$=$1} | T_INSTEADOF {$$=$1} | T_GLOBAL {$$=$1} | T_VAR {$$=$1} | T_UNSET {$$=$1} | T_ISSET {$$=$1} | T_EMPTY {$$=$1} | T_CONTINUE {$$=$1} | T_GOTO {$$=$1}
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| T_FUNCTION {$$=$1} | T_CONST {$$=$1} | T_RETURN {$$=$1} | T_PRINT {$$=$1} | T_YIELD {$$=$1} | T_LIST {$$=$1} | T_SWITCH {$$=$1} | T_ENDSWITCH {$$=$1} | T_CASE {$$=$1} | T_DEFAULT {$$=$1} | T_BREAK {$$=$1}
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| T_ARRAY {$$=$1} | T_CALLABLE {$$=$1} | T_EXTENDS {$$=$1} | T_IMPLEMENTS {$$=$1} | T_NAMESPACE {$$=$1} | T_TRAIT {$$=$1} | T_INTERFACE {$$=$1} | T_CLASS {$$=$1}
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| T_CLASS_C {$$=$1} | T_TRAIT_C {$$=$1} | T_FUNC_C {$$=$1} | T_METHOD_C {$$=$1} | T_LINE {$$=$1} | T_FILE {$$=$1} | T_DIR {$$=$1} | T_NS_C {$$=$1}
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;
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semi_reserved:
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reserved_non_modifiers {$$=$1}
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| T_STATIC {$$=$1} | T_ABSTRACT {$$=$1} | T_FINAL {$$=$1} | T_PRIVATE {$$=$1} | T_PROTECTED {$$=$1} | T_PUBLIC {$$=$1}
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;
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identifier:
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T_STRING { $$ = Node("identifier").attribute("value", $1) }
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| semi_reserved { $$ = Node("identifier").attribute("value", $1) }
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;
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top_statement_list:
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top_statement_list top_statement { $$ = $1.append($2); }
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| /* empty */ { $$ = Node("Statements") }
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;
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namespace_name:
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T_STRING { $$ = Node("NamespaceParts").append(Node($1)); }
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| namespace_name T_NS_SEPARATOR T_STRING { $$ = $1.append(Node($3)); }
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;
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name:
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namespace_name { $$ = Node("Name").append($1); }
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| T_NS_SEPARATOR namespace_name { $$ = Node("Name").append($2).attribute("FullyQualified", "true"); }
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| T_NAMESPACE T_NS_SEPARATOR namespace_name { $$ = Node("Name").append($3).attribute("Relative", "true"); }
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;
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top_statement:
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statement { $$ = $1 }
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| function_declaration_statement { $$ = $1 }
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| class_declaration_statement { $$ = $1; }
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| trait_declaration_statement { $$ = $1; }
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| interface_declaration_statement { $$ = $1; }
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| T_HALT_COMPILER '(' ')' ';' { $$ = Node("THaltCompiler") }
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| T_NAMESPACE namespace_name ';' { $$ = Node("Namespace").append($2); }
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| T_NAMESPACE namespace_name '{' top_statement_list '}'
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{ $$ = Node("Namespace").append($2).append($4) }
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| T_NAMESPACE '{' top_statement_list '}' { $$ = Node("Namespace").append($3) }
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| T_USE mixed_group_use_declaration ';' { $$ = $2; }
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| T_USE use_type group_use_declaration ';' { $$ = $3.append($2) }
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| T_USE use_declarations ';' { $$ = $2; }
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| T_USE use_type use_declarations ';' { $$ = $3.append($2) }
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| T_CONST const_list ';' { $$ = $2; }
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;
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use_type:
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T_FUNCTION { $$ = Node("FuncUseType"); }
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| T_CONST { $$ = Node("ConstUseType"); }
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;
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group_use_declaration:
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namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}'
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{ $$ = Node("GroupUse").append($1).append($4) }
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| T_NS_SEPARATOR namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}'
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{ $$ = Node("GroupUse").append($2).append($5) }
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;
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mixed_group_use_declaration:
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namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}'
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{ $$ = Node("MixedGroupUse").append($1).append($4); }
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| T_NS_SEPARATOR namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}'
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{ $$ = Node("MixedGroupUse").append($2).append($5); }
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;
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possible_comma:
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/* empty */
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| ','
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;
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inline_use_declarations:
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inline_use_declarations ',' inline_use_declaration
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{ $$ = $1.append($3) }
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| inline_use_declaration { $$ = Node("UseList").append($1) }
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;
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unprefixed_use_declarations:
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unprefixed_use_declarations ',' unprefixed_use_declaration
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{ $$ = $1.append($3) }
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| unprefixed_use_declaration { $$ = Node("UseList").append($1) }
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;
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use_declarations:
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use_declarations ',' use_declaration { $$ = $1.append($3) }
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| use_declaration { $$ = Node("UseList").append($1) }
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;
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inline_use_declaration:
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unprefixed_use_declaration { $$ = $1; }
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| use_type unprefixed_use_declaration { $$ = $2.append($1) }
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;
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unprefixed_use_declaration:
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namespace_name { $$ = Node("UseElem").append($1); }
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| namespace_name T_AS T_STRING { $$ = Node("UseElem").append($1).append(Node("as").attribute("value", $3)); }
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;
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use_declaration:
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unprefixed_use_declaration { $$ = $1; }
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| T_NS_SEPARATOR unprefixed_use_declaration { $$ = $2; }
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;
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const_list:
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const_list ',' const_decl { $$ = $1.append($3) }
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| const_decl { $$ = Node("ConstList").append($1) }
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;
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inner_statement_list:
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inner_statement_list inner_statement { $$ = $1.append($2); }
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| /* empty */ { $$ = Node("stmt") }
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;
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inner_statement:
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statement { $$ = $1; }
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| function_declaration_statement { $$ = $1; }
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| class_declaration_statement { $$ = $1; }
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| trait_declaration_statement { $$ = $1; }
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| interface_declaration_statement { $$ = $1; }
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| T_HALT_COMPILER '(' ')' ';' { $$ = Node("THaltCompiler") }
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statement:
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'{' inner_statement_list '}' { $$ = $2; }
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| if_stmt { $$ = $1; }
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| alt_if_stmt { $$ = $1; }
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| T_WHILE '(' expr ')' while_statement
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{
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$$ = Node("While").
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append(Node("expr").append($3)).
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append(Node("stmt").append($5));
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}
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| T_DO statement T_WHILE '(' expr ')' ';'
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{
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$$ = Node("DoWhile").
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append(Node("expr").append($5)).
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append(Node("stmt").append($2));
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}
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| T_FOR '(' for_exprs ';' for_exprs ';' for_exprs ')' for_statement
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{
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$$ = Node("For").
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append(Node("expr1").append($3)).
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append(Node("expr2").append($5)).
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append(Node("expr3").append($7)).
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append(Node("stmt").append($9))
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}
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| T_SWITCH '(' expr ')' switch_case_list { $$ = Node("Switch").append(Node("expr").append($3)).append($5); }
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| T_BREAK optional_expr ';' { $$ = Node("Break").append($2) }
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| T_CONTINUE optional_expr ';' { $$ = Node("Continue").append($2) }
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| T_RETURN optional_expr ';' { $$ = Node("Return").append($2) }
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| T_GLOBAL global_var_list ';' { $$ = $2; }
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| T_STATIC static_var_list ';' { $$ = $2; }
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| T_ECHO echo_expr_list ';' { $$ = $2; }
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| T_INLINE_HTML { $$ = Node("Echo").append(Node("InlineHtml").attribute("value", $1)) }
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| expr ';' { $$ = $1; }
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| T_UNSET '(' unset_variables possible_comma ')' ';'
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{ $$ = Node("Unset").append($3); }
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| T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement
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{
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$$ = Node("Foreach").
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append(Node("expr").append($3)).
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append(Node("ForeachVariable").append($5)).
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append($7);
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}
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| T_FOREACH '(' expr T_AS foreach_variable T_DOUBLE_ARROW foreach_variable ')' foreach_statement
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{
|
|
$$ = Node("Foreach").
|
|
append(Node("expr").append($3)).
|
|
append(Node("ForeachKey").append($5)).
|
|
append(Node("ForeachVariable").append($7)).
|
|
append($9);
|
|
}
|
|
| T_DECLARE '(' const_list ')' declare_statement { $$ = Node("Declare").append($3).append($5) }
|
|
| ';' /* empty statement */ { $$ = Node(""); }
|
|
| T_TRY '{' inner_statement_list '}' catch_list finally_statement
|
|
{
|
|
$$ = Node("Try").
|
|
append($3).
|
|
append($5).
|
|
append($6);
|
|
}
|
|
| T_THROW expr ';' { $$ = Node("Throw").append($2) }
|
|
| T_GOTO T_STRING ';' { $$ = Node("GoTo").attribute("Label", $2) }
|
|
| T_STRING ':' { $$ = Node("Label").attribute("name", $1) }
|
|
|
|
catch_list:
|
|
/* empty */ { $$ = Node("CatchList") }
|
|
| catch_list T_CATCH '(' catch_name_list T_VARIABLE ')' '{' inner_statement_list '}'
|
|
{ $$ = $1.append($4).append(Node("Variable").attribute("name", $5)).append($8) }
|
|
;
|
|
catch_name_list:
|
|
name { $$ = Node("CatchNameList").append($1) }
|
|
| catch_name_list '|' name { $$ = $1.append($3) }
|
|
;
|
|
|
|
finally_statement:
|
|
/* empty */ { $$ = Node(""); }
|
|
| T_FINALLY '{' inner_statement_list '}' { $$ = Node("Finnaly").append($3) }
|
|
;
|
|
|
|
unset_variables:
|
|
unset_variable { $$ = Node("UnsetVariablesList").append($1) }
|
|
| unset_variables ',' unset_variable { $$ = $1.append($3) }
|
|
;
|
|
|
|
unset_variable:
|
|
variable { $$ = $1 }
|
|
;
|
|
|
|
function_declaration_statement:
|
|
T_FUNCTION returns_ref T_STRING '(' parameter_list ')' return_type '{' inner_statement_list '}'
|
|
{
|
|
$$ = Node("Function").
|
|
attribute("name", $3).
|
|
attribute("returns_ref", $2).
|
|
append($5).
|
|
append($7).
|
|
append($9);
|
|
}
|
|
;
|
|
|
|
is_reference:
|
|
/* empty */ { $$ = "false"; }
|
|
| '&' { $$ = "true"; }
|
|
;
|
|
|
|
is_variadic:
|
|
/* empty */ { $$ = "false"; }
|
|
| T_ELLIPSIS { $$ = "true"; }
|
|
;
|
|
|
|
class_declaration_statement:
|
|
class_modifiers T_CLASS T_STRING extends_from implements_list '{' class_statement_list '}'
|
|
{
|
|
$$ = Node("Class").
|
|
attribute("name", $3).
|
|
append($1).
|
|
append(Node("Extends").append($4)).
|
|
append(Node("Implements").append($5)).
|
|
append($7);
|
|
}
|
|
| T_CLASS T_STRING extends_from implements_list '{' class_statement_list '}'
|
|
{
|
|
$$ = Node("Class").
|
|
attribute("name", $2).
|
|
append(Node("Extends").append($3)).
|
|
append(Node("Implements").append($4)).
|
|
append($6);
|
|
}
|
|
;
|
|
|
|
class_modifiers:
|
|
class_modifier { $$ = Node("Class").attribute($1, "true") }
|
|
| class_modifiers class_modifier { $$ = $1.attribute($2, "true") }
|
|
;
|
|
|
|
class_modifier:
|
|
T_ABSTRACT { $$ = "abstract" }
|
|
| T_FINAL { $$ = "final" }
|
|
;
|
|
|
|
trait_declaration_statement:
|
|
T_TRAIT T_STRING '{' class_statement_list '}' { $$ = Node("Trait").attribute("name", $2).append($4) }
|
|
;
|
|
|
|
interface_declaration_statement:
|
|
T_INTERFACE T_STRING interface_extends_list '{' class_statement_list '}'
|
|
{
|
|
$$ = Node("Interface").
|
|
attribute("name", $2).
|
|
append(Node("Extends").append($3)).
|
|
append($5);
|
|
}
|
|
;
|
|
|
|
extends_from:
|
|
/* empty */ { $$ = Node(""); }
|
|
| T_EXTENDS name { $$ = $2; }
|
|
;
|
|
|
|
interface_extends_list:
|
|
/* empty */ { $$ = Node("") }
|
|
| T_EXTENDS name_list { $$ = $2; }
|
|
;
|
|
|
|
implements_list:
|
|
/* empty */ { $$ = Node(""); }
|
|
| T_IMPLEMENTS name_list { $$ = $2; }
|
|
;
|
|
|
|
foreach_variable:
|
|
variable { $$ = $1; }
|
|
| '&' variable { $$ = Node("Ref").append($2); }
|
|
| T_LIST '(' array_pair_list ')' { $$ = Node("List").append($3) }
|
|
| '[' array_pair_list ']' { $$ = Node("ShortList").append($2) }
|
|
;
|
|
|
|
for_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDFOR ';' { $$ = $2; }
|
|
;
|
|
|
|
foreach_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; }
|
|
;
|
|
|
|
declare_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; }
|
|
;
|
|
|
|
switch_case_list:
|
|
'{' case_list '}' { $$ = $2; }
|
|
| '{' ';' case_list '}' { $$ = $3; }
|
|
| ':' case_list T_ENDSWITCH ';' { $$ = $2; }
|
|
| ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; }
|
|
;
|
|
|
|
case_list:
|
|
/* empty */ { $$ = Node("CaseList") }
|
|
| case_list T_CASE expr case_separator inner_statement_list
|
|
{
|
|
$$ = $1.append(Node("Case").append(Node("expr").append($3)).append($5))
|
|
}
|
|
| case_list T_DEFAULT case_separator inner_statement_list
|
|
{
|
|
$$ = $1.append(Node("Default").append($4))
|
|
}
|
|
;
|
|
|
|
case_separator:
|
|
':'
|
|
| ';'
|
|
;
|
|
|
|
while_statement:
|
|
statement { $$ = $1; }
|
|
| ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; }
|
|
;
|
|
|
|
if_stmt_without_else:
|
|
T_IF '(' expr ')' statement
|
|
{
|
|
$$ = Node("If").append(Node("expr").append($3)).append(Node("stmt").append($5))
|
|
}
|
|
| if_stmt_without_else T_ELSEIF '(' expr ')' statement
|
|
{
|
|
$$ = $1.append(Node("ElseIf").append(Node("expr").append($4)).append(Node("stmt").append($6)))
|
|
}
|
|
;
|
|
|
|
if_stmt:
|
|
if_stmt_without_else %prec T_NOELSE { $$ = $1; }
|
|
| if_stmt_without_else T_ELSE statement
|
|
{
|
|
$$ = $1.append(Node("Else").append(Node("stmt").append($3)))
|
|
}
|
|
;
|
|
|
|
alt_if_stmt_without_else:
|
|
T_IF '(' expr ')' ':' inner_statement_list
|
|
{
|
|
$$ = Node("AltIf").append(Node("expr").append($3)).append(Node("stmt").append($6))
|
|
}
|
|
| alt_if_stmt_without_else T_ELSEIF '(' expr ')' ':' inner_statement_list
|
|
{
|
|
$$ = $1.append(Node("AltElseIf").append(Node("expr").append($4)).append(Node("stmt").append($7)))
|
|
}
|
|
;
|
|
|
|
alt_if_stmt:
|
|
alt_if_stmt_without_else T_ENDIF ';' { $$ = $1; }
|
|
| alt_if_stmt_without_else T_ELSE ':' inner_statement_list T_ENDIF ';'
|
|
{
|
|
$$ = $1.append(Node("AltElse").append(Node("stmt").append($4)))
|
|
}
|
|
;
|
|
|
|
parameter_list:
|
|
non_empty_parameter_list { $$ = $1; }
|
|
| /* empty */ { $$ = Node("Parameter list"); }
|
|
;
|
|
|
|
non_empty_parameter_list:
|
|
parameter { $$ = Node("Parameter list").append($1) }
|
|
| non_empty_parameter_list ',' parameter { $$ = $1.append($3); }
|
|
;
|
|
|
|
parameter:
|
|
optional_type is_reference is_variadic T_VARIABLE
|
|
{
|
|
$$ = Node("Parameter").
|
|
append($1).
|
|
attribute("is_reference", $2).
|
|
attribute("is_variadic", $3).
|
|
attribute("var", $4);
|
|
}
|
|
| optional_type is_reference is_variadic T_VARIABLE '=' expr
|
|
{
|
|
$$ = Node("Parameter").
|
|
append($1).
|
|
attribute("is_reference", $2).
|
|
attribute("is_variadic", $3).
|
|
attribute("var", $4).
|
|
append($6);
|
|
}
|
|
;
|
|
|
|
optional_type:
|
|
/* empty */ { $$ = Node("No type") }
|
|
| type_expr { $$ = $1; }
|
|
;
|
|
|
|
type_expr:
|
|
type { $$ = $1; }
|
|
| '?' type { $$ = $2; $$.attribute("nullable", "true") }
|
|
;
|
|
|
|
type:
|
|
name { $$ = $1; }
|
|
| T_ARRAY { $$ = Node("array type"); }
|
|
| T_CALLABLE { $$ = Node("callable type"); }
|
|
;
|
|
|
|
return_type:
|
|
/* empty */ { $$ = Node("No return type"); }
|
|
| ':' type_expr { $$ = $2; }
|
|
;
|
|
|
|
argument_list:
|
|
'(' ')' { $$ = Node("ArgumentList") }
|
|
| '(' non_empty_argument_list possible_comma ')' { $$ = $2; }
|
|
;
|
|
|
|
non_empty_argument_list:
|
|
argument { $$ = Node("ArgumentList").append($1) }
|
|
| non_empty_argument_list ',' argument { $$ = $1.append($3) }
|
|
;
|
|
|
|
argument:
|
|
expr { $$ = $1; }
|
|
| T_ELLIPSIS expr { $$ = Node("Unpack").append($2) }
|
|
;
|
|
|
|
global_var_list:
|
|
global_var_list ',' global_var { $$ = $1.append($3); }
|
|
| global_var { $$ = Node("GlobalVarList").append($1); }
|
|
;
|
|
|
|
global_var:
|
|
simple_variable { $$ = $1 }
|
|
;
|
|
|
|
static_var_list:
|
|
static_var_list ',' static_var { $$ = $1.append($3); }
|
|
| static_var { $$ = Node("StaticVarList").append($1); }
|
|
;
|
|
|
|
static_var:
|
|
T_VARIABLE { $$ = Node("StaticVariable").attribute("Name", $1); }
|
|
| T_VARIABLE '=' expr { $$ = Node("StaticVariable").attribute("Name", $1).append(Node("expr").append($3)); }
|
|
;
|
|
|
|
class_statement_list:
|
|
class_statement_list class_statement { $$ = $1.append($2) }
|
|
| /* empty */ { $$ = Node("Stmt") }
|
|
;
|
|
|
|
class_statement:
|
|
variable_modifiers property_list ';' { $$ = $2.append($1) }
|
|
| method_modifiers T_CONST class_const_list ';' { $$ = $3.append($1); }
|
|
| T_USE name_list trait_adaptations { $$ = Node("Use").append($2).append($3); }
|
|
| method_modifiers T_FUNCTION returns_ref identifier '(' parameter_list ')'
|
|
return_type method_body
|
|
{
|
|
$$ = Node("Function").
|
|
append($1).
|
|
append(Node("name").append($4)).
|
|
attribute("returns_ref", $3).
|
|
append($6).
|
|
append($8).
|
|
append($9);
|
|
}
|
|
;
|
|
|
|
name_list:
|
|
name { $$ = Node("NameList").append($1) }
|
|
| name_list ',' name { $$ = $1.append($3) }
|
|
;
|
|
|
|
trait_adaptations:
|
|
';' { $$ = Node(""); }
|
|
| '{' '}' { $$ = Node(""); }
|
|
| '{' trait_adaptation_list '}' { $$ = $2; }
|
|
;
|
|
|
|
trait_adaptation_list:
|
|
trait_adaptation { $$ = Node("TraitAdaptionList").append($1) }
|
|
| trait_adaptation_list trait_adaptation { $$ = $1.append($2) }
|
|
;
|
|
|
|
trait_adaptation:
|
|
trait_precedence ';' { $$ = $1; }
|
|
| trait_alias ';' { $$ = $1; }
|
|
;
|
|
|
|
trait_precedence:
|
|
absolute_trait_method_reference T_INSTEADOF name_list
|
|
{ $$ = Node("TraitPrecedence").append($1).append($3) }
|
|
;
|
|
|
|
trait_alias:
|
|
trait_method_reference T_AS T_STRING { $$ = $1.append(Node("as").attribute("value", $3)); }
|
|
| trait_method_reference T_AS reserved_non_modifiers
|
|
{ $$ = $1.append(Node("as").append(Node("reservedNonModifiers"))); }
|
|
| trait_method_reference T_AS member_modifier identifier
|
|
{ $$ = $1.append($3).append($4); }
|
|
| trait_method_reference T_AS member_modifier { $$ = $1.append($3); }
|
|
;
|
|
|
|
trait_method_reference:
|
|
identifier { $$ = Node("TraitMethodRef").append($1); }
|
|
| absolute_trait_method_reference { $$ = $1; }
|
|
;
|
|
|
|
absolute_trait_method_reference:
|
|
name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = Node("TraitMethodRef").append($1).append($3) }
|
|
;
|
|
|
|
method_body:
|
|
';' /* abstract method */ { $$ = Node(""); }
|
|
| '{' inner_statement_list '}' { $$ = $2; }
|
|
;
|
|
|
|
variable_modifiers:
|
|
non_empty_member_modifiers { $$ = $1; }
|
|
| T_VAR { $$ = Node("VarMemberModifier") }
|
|
;
|
|
|
|
method_modifiers:
|
|
/* empty */ { $$ = Node("PublicMemberModifier"); }
|
|
| non_empty_member_modifiers { $$ = $1; }
|
|
;
|
|
|
|
non_empty_member_modifiers:
|
|
member_modifier { $$ = $1; }
|
|
| non_empty_member_modifiers member_modifier { $$ = $1.append($2) }
|
|
;
|
|
|
|
member_modifier:
|
|
T_PUBLIC { $$ = Node("PublicMemberModifier"); }
|
|
| T_PROTECTED { $$ = Node("ProtectedMemberModifier"); }
|
|
| T_PRIVATE { $$ = Node("PrivateMemberModifier"); }
|
|
| T_STATIC { $$ = Node("StaticMemberModifier"); }
|
|
| T_ABSTRACT { $$ = Node("AbstractMemberModifier"); }
|
|
| T_FINAL { $$ = Node("FinalMemberModifier"); }
|
|
;
|
|
|
|
property_list:
|
|
property_list ',' property { $$ = $1.append($3) }
|
|
| property { $$ = Node("PropertyList").append($1) }
|
|
;
|
|
|
|
property:
|
|
T_VARIABLE { $$ = Node("Property").attribute("name", $1) }
|
|
| T_VARIABLE '=' expr { $$ = Node("Property").attribute("name", $1).append(Node("Default").append($3)) }
|
|
;
|
|
|
|
class_const_list:
|
|
class_const_list ',' class_const_decl { $$ = $1.append($3) }
|
|
| class_const_decl { $$ = Node("ConstList").append($1) }
|
|
;
|
|
|
|
class_const_decl:
|
|
identifier '=' expr { $$ = Node("Const").append($3) }
|
|
;
|
|
|
|
const_decl:
|
|
T_STRING '=' expr { $$ = Node("Const").attribute("name", $1).append($3) }
|
|
;
|
|
|
|
echo_expr_list:
|
|
echo_expr_list ',' echo_expr { $$ = $1.append($3) }
|
|
| echo_expr { $$ = Node("EchoList").append($1) }
|
|
;
|
|
|
|
echo_expr:
|
|
expr { $$ = Node("Echo").append($1) }
|
|
;
|
|
|
|
for_exprs:
|
|
/* empty */ { $$ = Node(""); }
|
|
| non_empty_for_exprs { $$ = $1; }
|
|
;
|
|
non_empty_for_exprs:
|
|
non_empty_for_exprs ',' expr { $$ = $1.append($3) }
|
|
| expr { $$ = Node("ExpressionList").append($1) }
|
|
;
|
|
|
|
anonymous_class:
|
|
T_CLASS ctor_arguments extends_from implements_list '{' class_statement_list '}'
|
|
{
|
|
$$ = Node("AnonymousClass").
|
|
attribute("name", $1).
|
|
append($2).
|
|
append($3).
|
|
append($4).
|
|
append($6);
|
|
}
|
|
;
|
|
|
|
new_expr:
|
|
T_NEW class_name_reference ctor_arguments { $$ = Node("New").append($2).append($3) }
|
|
| T_NEW anonymous_class { $$ = Node("New").append($2) }
|
|
;
|
|
|
|
expr_without_variable:
|
|
variable '=' expr { $$ = Node("Assign").append($1).append($3); }
|
|
| variable '=' '&' expr { $$ = Node("AssignRef").append($1).append($4); }
|
|
| T_CLONE expr { $$ = Node("Clone").append($2); }
|
|
| variable T_PLUS_EQUAL expr { $$ = Node("AssignAdd").append($1).append($3); }
|
|
| variable T_MINUS_EQUAL expr { $$ = Node("AssignSub").append($1).append($3); }
|
|
| variable T_MUL_EQUAL expr { $$ = Node("AssignMul").append($1).append($3); }
|
|
| variable T_POW_EQUAL expr { $$ = Node("AssignPow").append($1).append($3); }
|
|
| variable T_DIV_EQUAL expr { $$ = Node("AssignDiv").append($1).append($3); }
|
|
| variable T_CONCAT_EQUAL expr { $$ = Node("AssignConcat").append($1).append($3); }
|
|
| variable T_MOD_EQUAL expr { $$ = Node("AssignMod").append($1).append($3); }
|
|
| variable T_AND_EQUAL expr { $$ = Node("AssignAnd").append($1).append($3); }
|
|
| variable T_OR_EQUAL expr { $$ = Node("AssignOr").append($1).append($3); }
|
|
| variable T_XOR_EQUAL expr { $$ = Node("AssignXor").append($1).append($3); }
|
|
| variable T_SL_EQUAL expr { $$ = Node("AssignShiftLeft").append($1).append($3); }
|
|
| variable T_SR_EQUAL expr { $$ = Node("AssignShiftRight").append($1).append($3); }
|
|
| variable T_INC { $$ = Node("PostIncrement").append($1) }
|
|
| T_INC variable { $$ = Node("PreIncrement").append($2) }
|
|
| variable T_DEC { $$ = Node("PostDecrement").append($1) }
|
|
| T_DEC variable { $$ = Node("PreDecrement").append($2) }
|
|
| expr T_BOOLEAN_OR expr { $$ = Node("Or").append($1).append($3) }
|
|
| expr T_BOOLEAN_AND expr { $$ = Node("And").append($1).append($3) }
|
|
| expr T_LOGICAL_OR expr { $$ = Node("Or").append($1).append($3) }
|
|
| expr T_LOGICAL_AND expr { $$ = Node("And").append($1).append($3) }
|
|
| expr T_LOGICAL_XOR expr { $$ = Node("Xor").append($1).append($3) }
|
|
| expr '|' expr { $$ = Node("BitwiseOr").append($1).append($3) }
|
|
| expr '&' expr { $$ = Node("BitwiseAnd").append($1).append($3) }
|
|
| expr '^' expr { $$ = Node("BitwiseXor").append($1).append($3) }
|
|
| expr '.' expr { $$ = Node("Concat").append($1).append($3) }
|
|
| expr '+' expr { $$ = Node("Add").append($1).append($3) }
|
|
| expr '-' expr { $$ = Node("Sub").append($1).append($3) }
|
|
| expr '*' expr { $$ = Node("Mul").append($1).append($3) }
|
|
| expr T_POW expr { $$ = Node("Pow").append($1).append($3) }
|
|
| expr '/' expr { $$ = Node("Div").append($1).append($3) }
|
|
| expr '%' expr { $$ = Node("Mod").append($1).append($3) }
|
|
| expr T_SL expr { $$ = Node("ShiftLeft").append($1).append($3) }
|
|
| expr T_SR expr { $$ = Node("ShiftRight").append($1).append($3) }
|
|
| '+' expr %prec T_INC { $$ = Node("UnaryPlus").append($2) }
|
|
| '-' expr %prec T_INC { $$ = Node("UnaryMinus").append($2) }
|
|
| '!' expr { $$ = Node("BooleanNot").append($2) }
|
|
| '~' expr { $$ = Node("BitwiseNot").append($2) }
|
|
| expr T_IS_IDENTICAL expr { $$ = Node("Identical").append($1).append($3) }
|
|
| expr T_IS_NOT_IDENTICAL expr { $$ = Node("NotIdentical").append($1).append($3) }
|
|
| expr T_IS_EQUAL expr { $$ = Node("Equal").append($1).append($3) }
|
|
| expr T_IS_NOT_EQUAL expr { $$ = Node("NotEqual").append($1).append($3) }
|
|
| expr T_SPACESHIP expr { $$ = Node("Spaceship").append($1).append($3); }
|
|
| expr '<' expr { $$ = Node("Smaller").append($1).append($3) }
|
|
| expr T_IS_SMALLER_OR_EQUAL expr { $$ = Node("SmallerOrEqual").append($1).append($3) }
|
|
| expr '>' expr { $$ = Node("Greater").append($1).append($3) }
|
|
| expr T_IS_GREATER_OR_EQUAL expr { $$ = Node("GreaterOrEqual").append($1).append($3) }
|
|
| expr T_INSTANCEOF class_name_reference { $$ = Node("InstanceOf").append($1).append($3) }
|
|
| '(' expr ')' { $$ = $2; }
|
|
| new_expr { $$ = $1; }
|
|
| expr '?' expr ':' expr { $$ = Node("Ternary").append($1).append($3).append($5); }
|
|
| expr '?' ':' expr { $$ = Node("Ternary").append($1).append($4); }
|
|
| expr T_COALESCE expr { $$ = Node("Coalesce").append($1).append($3); }
|
|
| internal_functions_in_yacc { $$ = $1}
|
|
| T_INT_CAST expr { $$ = Node("CastInt").append($2); }
|
|
| T_DOUBLE_CAST expr { $$ = Node("CastDouble").append($2); }
|
|
| T_STRING_CAST expr { $$ = Node("CastString").append($2); }
|
|
| T_ARRAY_CAST expr { $$ = Node("CastArray").append($2); }
|
|
| T_OBJECT_CAST expr { $$ = Node("CastObject").append($2); }
|
|
| T_BOOL_CAST expr { $$ = Node("CastBool").append($2); }
|
|
| T_UNSET_CAST expr { $$ = Node("CastUnset").append($2); }
|
|
| T_EXIT exit_expr { $$ = Node("Exit").append($2); }
|
|
| '@' expr { $$ = Node("Silence").append($2); }
|
|
| scalar { $$ = $1; }
|
|
| '`' backticks_expr '`' { $$ = Node("ShellExec").append($2) }
|
|
| T_PRINT expr { $$ = Node("Print").append($2); }
|
|
| T_YIELD { $$ = Node("Yield"); }
|
|
| T_YIELD expr { $$ = Node("Yield").append($2); }
|
|
| T_YIELD expr T_DOUBLE_ARROW expr { $$ = Node("Yield").append($2).append($4); }
|
|
| T_YIELD_FROM expr { $$ = Node("YieldFrom").append($2); }
|
|
| T_FUNCTION returns_ref '(' parameter_list ')' lexical_vars return_type '{' inner_statement_list '}'
|
|
{
|
|
$$ = Node("Closure").
|
|
attribute("returns_ref", $2).
|
|
append($4).
|
|
append($6).
|
|
append($7).
|
|
append($9);
|
|
}
|
|
| T_STATIC T_FUNCTION returns_ref '(' parameter_list ')' lexical_vars return_type '{' inner_statement_list '}'
|
|
{
|
|
$$ = Node("StaticClosure").
|
|
attribute("returns_ref", $3).
|
|
append($5).
|
|
append($7).
|
|
append($8).
|
|
append($10);
|
|
}
|
|
;
|
|
|
|
returns_ref:
|
|
/* empty */ { $$ = "false"; }
|
|
| '&' { $$ = "true"; }
|
|
;
|
|
|
|
lexical_vars:
|
|
/* empty */ { $$ = Node("") }
|
|
| T_USE '(' lexical_var_list ')' { $$ = $3; }
|
|
;
|
|
|
|
lexical_var_list:
|
|
lexical_var_list ',' lexical_var { $$ = $1.append($3) }
|
|
| lexical_var { $$ = Node("ClosureUses").append($1) }
|
|
;
|
|
|
|
lexical_var:
|
|
T_VARIABLE { $$ = Node("Variable").attribute("value", $1) }
|
|
| '&' T_VARIABLE { $$ = Node("Variable").attribute("value", $2).attribute("ref", "true") }
|
|
;
|
|
|
|
function_call:
|
|
name argument_list { $$ = Node("FunctionCall").append($1).append($2) }
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list
|
|
{ $$ = Node("StaticCall").append($1).append($3).append($4) }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list
|
|
{ $$ = Node("StaticCall").append($1).append($3).append($4) }
|
|
| callable_expr argument_list { $$ = Node("Call").append($1).append($2); }
|
|
;
|
|
|
|
class_name:
|
|
T_STATIC { $$ = Node("Static") }
|
|
| name { $$ = $1; }
|
|
;
|
|
|
|
class_name_reference:
|
|
class_name { $$ = $1; }
|
|
| new_variable { $$ = $1; }
|
|
;
|
|
|
|
exit_expr:
|
|
/* empty */ { $$ = Node("") }
|
|
| '(' optional_expr ')' { $$ = $2; }
|
|
;
|
|
|
|
backticks_expr:
|
|
/* empty */ { $$ = Node("EmptyBackticks") }
|
|
| T_ENCAPSED_AND_WHITESPACE { $$ = Node("String").attribute("value", $1) }
|
|
| encaps_list { $$ = $1; }
|
|
;
|
|
|
|
ctor_arguments:
|
|
/* empty */ { $$ = Node("ArgumentList") }
|
|
| argument_list { $$ = $1; }
|
|
;
|
|
|
|
dereferencable_scalar:
|
|
T_ARRAY '(' array_pair_list ')' { $$ = $3; }
|
|
| '[' array_pair_list ']' { $$ = $2; }
|
|
| T_CONSTANT_ENCAPSED_STRING { $$ = Node("String").attribute("value", $1) }
|
|
;
|
|
|
|
scalar:
|
|
T_LNUMBER { $$ = Node("Scalar").append(Node("Lnumber").attribute("value", $1)) }
|
|
| T_DNUMBER { $$ = Node("Scalar").append(Node("Dnumber").attribute("value", $1)) }
|
|
| T_LINE { $$ = Node("Scalar").append(Node("__LINE__")) }
|
|
| T_FILE { $$ = Node("Scalar").append(Node("__FILE__")) }
|
|
| T_DIR { $$ = Node("Scalar").append(Node("__DIR__")) }
|
|
| T_TRAIT_C { $$ = Node("Scalar").append(Node("__TRAIT__")) }
|
|
| T_METHOD_C { $$ = Node("Scalar").append(Node("__METHOD__")); }
|
|
| T_FUNC_C { $$ = Node("Scalar").append(Node("__FUNCTION__")); }
|
|
| T_NS_C { $$ = Node("Scalar").append(Node("__NAMESPACE__")); }
|
|
| T_CLASS_C { $$ = Node("Scalar").append(Node("__CLASS__")); }
|
|
| T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC
|
|
{ $$ = Node("Scalar").append(Node("Heredoc").attribute("value", $2)) }
|
|
| T_START_HEREDOC T_END_HEREDOC
|
|
{ $$ = Node("Scalar").append(Node("Heredoc")) }
|
|
| '"' encaps_list '"' { $$ = $2; }
|
|
| T_START_HEREDOC encaps_list T_END_HEREDOC { $$ = $2; }
|
|
| dereferencable_scalar { $$ = $1; }
|
|
| constant { $$ = $1; }
|
|
;
|
|
|
|
constant:
|
|
name { $$ = Node("Const").append($1) }
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = Node("Const").append($1).append($3) }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM identifier
|
|
{ $$ = Node("Const").append($1).append($3) }
|
|
;
|
|
|
|
expr:
|
|
variable { $$ = $1; }
|
|
| expr_without_variable { $$ = $1; }
|
|
;
|
|
|
|
optional_expr:
|
|
/* empty */ { $$ = Node("") }
|
|
| expr { $$ = $1; }
|
|
;
|
|
|
|
variable_class_name:
|
|
dereferencable { $$ = $1; }
|
|
;
|
|
|
|
dereferencable:
|
|
variable { $$ = $1; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
| dereferencable_scalar { $$ = $1; }
|
|
;
|
|
|
|
callable_expr:
|
|
callable_variable { $$ = $1; }
|
|
| '(' expr ')' { $$ = $2; }
|
|
| dereferencable_scalar { $$ = $1; }
|
|
;
|
|
|
|
callable_variable:
|
|
simple_variable { $$ = $1; }
|
|
| dereferencable '[' optional_expr ']' { $$ = Node("Dim").append($1).append($3)}
|
|
| constant '[' optional_expr ']' { $$ = Node("Dim").append($1).append($3)}
|
|
| dereferencable '{' expr '}' { $$ = Node("Dim").append($1).append($3)}
|
|
| dereferencable T_OBJECT_OPERATOR property_name argument_list
|
|
{ $$ = Node("MethodCall").append($1).append($3).append($4)}
|
|
| function_call { $$ = $1; }
|
|
;
|
|
|
|
variable:
|
|
callable_variable { $$ = $1; }
|
|
| static_member { $$ = $1; }
|
|
| dereferencable T_OBJECT_OPERATOR property_name { $$ = Node("Property").append($1).append($3) }
|
|
;
|
|
|
|
simple_variable:
|
|
T_VARIABLE { $$ = Node("Variable").attribute("name", $1); }
|
|
| '$' '{' expr '}' { $$ = Node("Variable").append($3); }
|
|
| '$' simple_variable { $$ = Node("Variable").append($2); }
|
|
;
|
|
|
|
static_member:
|
|
class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = Node("StaticProp").append($1).append($3) }
|
|
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = Node("StaticProp").append($1).append($3) }
|
|
;
|
|
|
|
new_variable:
|
|
simple_variable { $$ = $1 }
|
|
| new_variable '[' optional_expr ']' { $$ = Node("Dim").append($1).append($3) }
|
|
| new_variable '{' expr '}' { $$ = Node("Dim").append($1).append($3) }
|
|
| new_variable T_OBJECT_OPERATOR property_name { $$ = Node("Property").append($1).append($3) }
|
|
| class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = Node("StaticProperty").append($1).append($3) }
|
|
| new_variable T_PAAMAYIM_NEKUDOTAYIM simple_variable
|
|
{ $$ = Node("StaticProperty").append($1).append($3) }
|
|
;
|
|
|
|
member_name:
|
|
identifier { $$ = $1; }
|
|
| '{' expr '}' { $$ = $2; }
|
|
| simple_variable { $$ = $1 }
|
|
;
|
|
|
|
property_name:
|
|
T_STRING { $$ = Node("PropertyName").attribute("value", $1) }
|
|
| '{' expr '}' { $$ = $2; }
|
|
| simple_variable { $$ = $1 }
|
|
;
|
|
|
|
array_pair_list:
|
|
non_empty_array_pair_list { /* TODO: allow single trailing comma */ $$ = $1 }
|
|
;
|
|
|
|
possible_array_pair:
|
|
/* empty */ { $$ = Node(""); }
|
|
| array_pair { $$ = $1; }
|
|
;
|
|
|
|
non_empty_array_pair_list:
|
|
non_empty_array_pair_list ',' possible_array_pair
|
|
{ $$ = $1.append($3) }
|
|
| possible_array_pair { $$ = Node("ArrayPairList").append($1) }
|
|
;
|
|
|
|
array_pair:
|
|
expr T_DOUBLE_ARROW expr { $$ = Node("ArrayElement").append($1).append($3) }
|
|
| expr { $$ = Node("ArrayElement").append($1) }
|
|
| expr T_DOUBLE_ARROW '&' variable { $$ = Node("ArrayElement").append($1).append(Node("Ref").append($4)) }
|
|
| '&' variable { $$ = Node("ArrayElement").append(Node("Ref").append($2)) }
|
|
| expr T_DOUBLE_ARROW T_LIST '(' array_pair_list ')'
|
|
{
|
|
$$ = Node("ArrayElement").
|
|
append($1).
|
|
append(Node("ArrayList").append($5))
|
|
}
|
|
| T_LIST '(' array_pair_list ')'
|
|
{
|
|
$$ = Node("ArrayElement").
|
|
append(Node("ArrayList").append($3))
|
|
}
|
|
;
|
|
|
|
encaps_list:
|
|
encaps_list encaps_var { $$ = $1.append($2) }
|
|
| encaps_list T_ENCAPSED_AND_WHITESPACE { $$ = $1.append(Node("String").attribute("value", $2)) }
|
|
| encaps_var { $$ = Node("EncapsList").append($1) }
|
|
| T_ENCAPSED_AND_WHITESPACE encaps_var { $$ = Node("EncapsList").append(Node("String").attribute("value", $1)).append($2) }
|
|
;
|
|
|
|
encaps_var:
|
|
T_VARIABLE { $$ = Node("Variable").attribute("value", $1) }
|
|
| T_VARIABLE '[' encaps_var_offset ']' { $$ = Node("Variable").attribute("value", $1).append(Node("offset").append($3)) }
|
|
| T_VARIABLE T_OBJECT_OPERATOR T_STRING { $$ = Node("Variable").attribute("value", $1).append(Node("property").attribute("value", $3)) }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Node("Variable").append(Node("expr").append($2)) }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Node("Variable").attribute("value", $2) }
|
|
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
|
|
{ $$ = Node("Variable").attribute("value", $2).append(Node("offset").append($4)) }
|
|
| T_CURLY_OPEN variable '}' { $$ = $2; }
|
|
;
|
|
encaps_var_offset:
|
|
T_STRING { $$ = Node("OffsetString").attribute("value", $1) }
|
|
| T_NUM_STRING { $$ = Node("OffsetNumString").attribute("value", $1) }
|
|
| '-' T_NUM_STRING { $$ = Node("OffsetNegateNumString").attribute("value", $2) }
|
|
| T_VARIABLE { $$ = Node("OffsetVariable").attribute("value", $1) }
|
|
;
|
|
|
|
internal_functions_in_yacc:
|
|
T_ISSET '(' isset_variables possible_comma ')' { $$ = $3; }
|
|
| T_EMPTY '(' expr ')' { $$ = Node("Empty").append($3); }
|
|
| T_INCLUDE expr { $$ = Node("Include").append($2); }
|
|
| T_INCLUDE_ONCE expr { $$ = Node("IncludeOnce").append($2); }
|
|
| T_EVAL '(' expr ')' { $$ = Node("Eval").append($3); }
|
|
| T_REQUIRE expr { $$ = Node("Require").append($2); }
|
|
| T_REQUIRE_ONCE expr { $$ = Node("RequireOnce").append($2); }
|
|
;
|
|
|
|
isset_variables:
|
|
isset_variable { $$ = $1; }
|
|
| isset_variables ',' isset_variable { $$ = Node("AndIsset").append($1).append($3); }
|
|
;
|
|
|
|
isset_variable:
|
|
expr { $$ = Node("Isset").append($1) }
|
|
;
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
|
|
%%
|
|
|
|
const src = `
|
|
<?php
|
|
|
|
namespace Test;
|
|
|
|
/**
|
|
* Class foo
|
|
*/
|
|
class foo
|
|
{
|
|
|
|
}
|
|
`
|
|
|
|
func main() {
|
|
yyDebug = 0
|
|
yyErrorVerbose = true
|
|
l := newLexer(bytes.NewBufferString(src), os.Stdout, "file.name")
|
|
yyParse(l)
|
|
} |