nielsbross/Ink-Shader-Language
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Add array parsing. Missing rest of pipeline.

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Niels Bross
2024-07-13 11:45:44 +02:00
parent ae54f1374e
commit c5758bd023
5 changed files with 116 additions and 2 deletions
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47
Parsing.jai
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@@ -84,6 +84,8 @@ parse_rules :: #run -> [(cast(int)Token_Kind.TOKEN_ERROR) + 1]Parse_Rule {
rules[Token_Kind.TOKEN_RIGHTPAREN] = .{null, null, .PREC_NONE};
rules[Token_Kind.TOKEN_LEFTBRACE] = .{null, null, .PREC_NONE};
rules[Token_Kind.TOKEN_RIGHTBRACE] = .{null, null, .PREC_NONE};
rules[Token_Kind.TOKEN_LEFTBRACKET] = .{null, array_access, .PREC_CALL};
rules[Token_Kind.TOKEN_RIGHTBRACKET] = .{null, null, .PREC_NONE};
rules[Token_Kind.TOKEN_COMMA] = .{null, null, .PREC_NONE};
rules[Token_Kind.TOKEN_DOT] = .{null, dot, .PREC_CALL};
rules[Token_Kind.TOKEN_PROPERTIES] = .{named_variable, null, .PREC_CALL};
@@ -429,6 +431,36 @@ binary :: (parse_state : *Parse_State, left : *AST_Node) -> *AST_Node {
return binary_expression;
}
array_access :: (parse_state : *Parse_State, left : *AST_Node) -> *AST_Node {
identifier := parse_state.tokens[parse_state.current_token_index - 3];
left_bracket := parse_state.tokens[parse_state.current_token_index - 2];
array_access := make_node(parse_state, .Unary);
array_access.token = left_bracket;
array_index := expression(parse_state);
add_child(array_access, array_index);
add_child(left, array_access);
consume(parse_state, .TOKEN_RIGHTBRACKET, "Expected ']' after array index.");
source_location : Source_Range;
source_location.begin = left.source_location.begin;
if check(parse_state, .TOKEN_ASSIGN) {
advance(parse_state);
node := make_node(parse_state, .Binary);
node.token = parse_state.previous;
add_child(node, left);
add_child(node, expression(parse_state));
return node;
}
source_location.end = parse_state.previous;
return left;
}
unary :: (parse_state : *Parse_State, left : *AST_Node) -> *AST_Node {
op := parse_state.previous.*;
rule := get_rule(op.kind);
@@ -441,6 +473,10 @@ unary :: (parse_state : *Parse_State, left : *AST_Node) -> *AST_Node {
case .TOKEN_MINUS; {
unary_expression.token = op;
}
case .TOKEN_LEFTBRACKET; {
unary_expression.token = op;
consume(parse_state, .TOKEN_RIGHTBRACKET, "Expect ']' after array access.");
}
}
return unary_expression;
@@ -588,6 +624,17 @@ field_declaration :: (parse_state : *Parse_State, identifier_token : *Token) ->
type_identifier := parse_state.current;
node.token = type_identifier;
advance(parse_state);
} else if check(parse_state, .TOKEN_LEFTBRACKET) {
advance(parse_state);
array_size_expression := expression(parse_state);
add_child(node, array_size_expression);
consume(parse_state, .TOKEN_RIGHTBRACKET, "Expected closing ']' in array declaration.");
consume(parse_state, .TOKEN_DOT, "Expected '.' before array type.");
type_identifier := parse_state.current;
node.token = type_identifier;
advance(parse_state);
node.array_field = true;
} else {
missing_type_specifier(parse_state, identifier_token, "Expected type specifier after field name.");
return node;