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Added attributes syntax to pattern language

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This comes with two experimental attributes for variables called `name` and `color`
This commit is contained in:
WerWolv
2021-01-21 17:49:30 +01:00
parent 3e3a5273c0
commit ff566aa51f
5 changed files with 165 additions and 46 deletions
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29
plugins/libimhex/source/lang/parser.cpp
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@@ -262,6 +262,29 @@ namespace hex::lang {
return this->parseTernaryConditional();
}
// [[ <Identifier[( (parseStringLiteral) )], ...> ]]
void Parser::parseAttribute(Attributable *currNode) {
if (currNode == nullptr)
throwParseError("tried to apply attribute to invalid statement");
do {
if (!MATCHES(sequence(IDENTIFIER)))
throwParseError("expected attribute expression");
auto attribute = this->getValue<std::string>(-1);
if (MATCHES(sequence(SEPARATOR_ROUNDBRACKETOPEN, STRING, SEPARATOR_ROUNDBRACKETCLOSE))) {
auto value = this->getValue<std::string>(-2);
currNode->addAttribute(new ASTNodeAttribute(attribute, value));
}
else
currNode->addAttribute(new ASTNodeAttribute(attribute));
} while (MATCHES(sequence(SEPARATOR_COMMA)));
if (!MATCHES(sequence(SEPARATOR_SQUAREBRACKETCLOSE, SEPARATOR_SQUAREBRACKETCLOSE)))
throwParseError("unfinished attribute. Expected ']]'");
}
/* Control flow */
@@ -410,6 +433,9 @@ namespace hex::lang {
else
throwParseError("invalid struct member", 0);
if (MATCHES(sequence(SEPARATOR_SQUAREBRACKETOPEN, SEPARATOR_SQUAREBRACKETOPEN)))
parseAttribute(dynamic_cast<Attributable *>(member));
if (!MATCHES(sequence(SEPARATOR_ENDOFEXPRESSION)))
throwParseError("missing ';' at end of expression", -1);
@@ -605,6 +631,9 @@ namespace hex::lang {
statement = parseFunctionCall();
else throwParseError("invalid sequence", 0);
if (MATCHES(sequence(SEPARATOR_SQUAREBRACKETOPEN, SEPARATOR_SQUAREBRACKETOPEN)))
parseAttribute(dynamic_cast<Attributable *>(statement));
if (!MATCHES(sequence(SEPARATOR_ENDOFEXPRESSION)))
throwParseError("missing ';' at end of expression", -1);