Added accessors to ArrayInitializationValues

This commit is contained in:
Sasha Koshka 2022-09-04 23:47:56 -04:00
parent 0cb6b2bf66
commit 319ed789bf
3 changed files with 54 additions and 3 deletions

View File

@ -1,12 +1,20 @@
package parser
import "git.tebibyte.media/arf/arf/types"
// LookupSection looks returns the section under the give name. If the section
// does not exist, nil is returned.
func (tree *SyntaxTree) LookupSection (name string) (section Section) {
func (tree SyntaxTree) LookupSection (name string) (section Section) {
section = tree.sections[name]
return
}
// Sections returns an iterator for the tree's sections
func (tree SyntaxTree) Sections () (iterator types.Iterator[Section]) {
iterator = types.NewIterator(tree.sections)
return
}
// Kind returns the section's kind (SectionKindType).
func (section TypeSection) Kind () (kind SectionKind) {
kind = SectionKindType
@ -93,3 +101,23 @@ func (what Type) Points () (points Type) {
}
return
}
// Values returns an iterator for the initialization values
func (values ObjectInitializationValues) Sections () (
iterator types.Iterator[Argument],
) {
iterator = types.NewIterator(values.attributes)
return
}
// Length returns the amount of values
func (values ArrayInitializationValues) Length () (length int) {
length = len(values.values)
return
}
// Item returns the value at index
func (values ArrayInitializationValues) Value (index int) (value Argument) {
value = values.values[index]
return
}

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@ -3,6 +3,29 @@ package parser
import "git.tebibyte.media/arf/arf/lexer"
import "git.tebibyte.media/arf/arf/infoerr"
// TODO: need to come up with another syntax for bitfields, and use that syntax
// for fixed-length arrays. the problem is, we cant use {} for those kinds of
// arrays because they aren't pointers under the hood and that goes against the
// arf design goals in a nasty ugly way, and not only that. but the :mut type
// qualifier is meaningless on fixed length arrays now. the bit field syntax
// solves both of these problems very gracefully. but now, the problem is coming
// up with new bit field syntax. implementing this change is extremely
// necessary, for it will supercharge the coherency of the language and make it
// way more awesome.
//
// this new syntax cannot conflict with arguments, so it cannot have any
// tokens that begin those. basically all symbol tokens are on the table here.
// some ideas:
//
// ro member:Type ~ 4
// ro member:Type & 4 <- i like this one because binary &. so intuitive.
// ro member:Type % 4
// ro member:Type | 4
// ro member:Type ! 4
// ro member:Type (4) <- this looks phenomenal, but it needs new tokens not
// used anywhere else, and it would be mildly annoying
// to parse.
// parseType parses a type notation of the form Name, {Name}, etc.
func (parser *ParsingOperation) parseType () (what Type, err error) {
err = parser.expect(lexer.TokenKindName, lexer.TokenKindLBrace)

View File

@ -43,8 +43,8 @@ func (iterator Iterator[VALUE_TYPE]) Next () {
iterator.index ++
}
// AtEnd returns whether the iterator has reached the end of the map.
func (iterator Iterator[VALUE_TYPE]) AtEnd () (atEnd bool) {
// End returns whether the iterator has reached the end of the map.
func (iterator Iterator[VALUE_TYPE]) End () (atEnd bool) {
atEnd = iterator.index >= len(iterator.keys) || iterator.index < 0
return
}