maride/php-parser
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parse Break Continue Return stmt

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z7zmey 2017-11-28 22:47:44 +02:00
parent 3e5af9828a
commit 01087d8da3
2 changed files with 878 additions and 827 deletions
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1682
parser.go
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23
parser.y
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@ -208,6 +208,7 @@ func (n node) attribute(key string, value string) node {
%type <node> for_statement
%type <node> switch_case_list
%type <node> case_list
%type <node> optional_expr
%%
@ -267,7 +268,7 @@ top_statement:
inner_statement_list:
inner_statement_list inner_statement { $$ = $1.append($2); }
| /* empty */ { $$ = Node("statement_list") }
| /* empty */ { $$ = Node("stmt") }
;
inner_statement:
@ -290,6 +291,9 @@ statement:
append(Node("stmt").append($9))
}
| T_SWITCH '(' expr ')' switch_case_list { $$ = Node("Switch").append(Node("expr").append($3)).append($5); }
| T_BREAK optional_expr ';' { $$ = Node("Break").append($2) }
| T_CONTINUE optional_expr ';' { $$ = Node("Continue").append($2) }
| T_RETURN optional_expr ';' { $$ = Node("Return").append($2) }
| expr ';' { $$ = $1; }
if_stmt_without_else:
@ -355,11 +359,11 @@ 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(Node("stmt").append($5)))
$$ = $1.append(Node("Case").append(Node("expr").append($3)).append($5))
}
| case_list T_DEFAULT case_separator inner_statement_list
{
$$ = $1.append(Node("Default").append(Node("stmt").append($4)))
$$ = $1.append(Node("Default").append($4))
}
;
@ -546,6 +550,11 @@ expr:
| expr_without_variable { $$ = $1; }
;
optional_expr:
/* empty */ { $$ = Node("null") }
| expr { $$ = $1; }
;
callable_variable:
simple_variable { $$ = $1; }
;
@ -567,10 +576,14 @@ simple_variable:
const src = `<?
switch($a) :;
case $b; $b = $a;
default; $a;
case $b;
$b = $a;
break;
default; break;
endswitch;
return $a;
`
func main() {