1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
#include "parser.ih"
// Add a hidden rule consisting of one action block.
void Parser::nestedBlock(Block &block)
{
string name = nextHiddenName();
// Since the inner block is a block, simply assume that its return value
// matches the type of the rule in which it is nested.
NonTerminal *np = NonTerminal::downcast(
defineNonTerminal(name, d_rules.sType())
);
d_rules.addElement(np); // add the block as a hidden rule
// process the block as a nested block
// preceded by nElements() -1
// production elements.
substituteBlock(-d_rules.nElements(), block);
d_rules.setHiddenAction(block); // define the action in the hidden
// terminal's production rule
}
|
