parse For stmt
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parent
6a15c6990a
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28
parser.y
28
parser.y
@ -203,6 +203,9 @@ func (n node) attribute(key string, value string) node {
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%type <node> alt_if_stmt_without_else
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%type <node> alt_if_stmt
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%type <node> while_statement
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%type <node> for_exprs
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%type <node> non_empty_for_exprs
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%type <node> for_statement
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%%
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@ -276,6 +279,14 @@ statement:
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| alt_if_stmt { $$ = $1; }
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| T_WHILE '(' expr ')' while_statement { $$ = Node("While").append(Node("expr").append($3)).append(Node("stmt").append($5)) }
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| T_DO statement T_WHILE '(' expr ')' ';' { $$ = Node("DoWhile").append(Node("expr").append($5)).append(Node("stmt").append($2))}
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| T_FOR '(' for_exprs ';' for_exprs ';' for_exprs ')' for_statement
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{
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$$ = 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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| expr ';' { $$ = $1; }
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if_stmt_without_else:
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@ -321,6 +332,19 @@ while_statement:
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| ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; }
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;
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for_exprs:
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/* empty */ { $$ = Node("null"); }
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| non_empty_for_exprs { $$ = $1; }
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;
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non_empty_for_exprs:
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non_empty_for_exprs ',' expr { $$ = $1.append($3) }
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| expr { $$ = Node("ExpressionList").append($1) }
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;
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for_statement:
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statement { $$ = $1; }
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| ':' inner_statement_list T_ENDFOR ';' { $$ = $2; }
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;
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class_declaration_statement:
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class_modifiers T_CLASS T_STRING '{' '}' { $$ = $1.attribute("name", $3) }
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@ -515,9 +539,9 @@ simple_variable:
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const src = `<?
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do {
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for ($a = $b;;) :
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} while ($a >= $b || $a < $c);
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endfor;
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`
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