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arf/parser/accessors.go

245 lines
6.4 KiB
Go

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) {
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
}
// ResolveRequire returns the full path, from the filesystem root, of an import.
// This method will return false for exists if the module has not been
// imported.
func (tree SyntaxTree) ResolveRequire (name string) (path string, exists bool) {
path, exists = tree.requires[name]
return
}
// Length returns the amount of names in the identifier.
func (identifier Identifier) Length () (length int) {
length = len(identifier.trail)
return
}
// Item returns the name at the specified index.
func (identifier Identifier) Item (index int) (item string) {
item = identifier.trail[index]
return
}
// Bite returns the first item of an identifier, and a copy of that identifier
// with that item removed. If there is nothing left to bite off, this method
// panics.
func (identifier Identifier) Bite () (item string, bitten Identifier) {
if len(identifier.trail) < 1 {
panic ("trying to bite an empty identifier")
}
bitten = identifier
item = bitten.trail[0]
bitten.trail = bitten.trail[1:]
return
}
// Kind returns the type's kind.
func (what Type) Kind () (kind TypeKind) {
kind = what.kind
return
}
// Nil returns true if the type is nil, and false if it isn't.
func (what Type) Nil () (isNil bool) {
isNil = what.kind == TypeKindNil
return
}
// Mutable returns whether or not the type's data is mutable.
func (what Type) Mutable () (mutable bool) {
mutable = what.mutable
return
}
// Length returns the length of the type. If it is greater than 1, that means
// the type is a fixed length array.
func (what Type) Length () (length uint64) {
length = 1
if what.length > 1 {
length = what.length
}
return
}
// Name returns the name of the type, if it is a basic type. Otherwise, it
// returns a zero value identifier.
func (what Type) Name () (name Identifier) {
if what.kind == TypeKindBasic {
name = what.name
}
return
}
// Points returns the type that this type points to, or is an array of. If the
// type is a basic type, this returns a zero value type.
func (what Type) Points () (points Type) {
if what.kind != TypeKindBasic {
points = *what.points
}
return
}
// MembersLength returns the amount of new members the type section defines.
// If it defines no new members, it returns zero.
func (section TypeSection) MembersLength () (length int) {
length = len(section.members)
return
}
// Member returns the member at index.
func (section TypeSection) Member (index int) (member TypeSectionMember) {
member = section.members[index]
return
}
// BitWidth returns the bit width of the type member. If it is zero, it should
// be treated as unspecified.
func (member TypeSectionMember) BitWidth () (width uint64) {
width = member.bitWidth
return
}
// Kind returns what kind of argument it is.
func (argument Argument) Kind () (kind ArgumentKind) {
kind = argument.kind
return
}
// Nil returns true if the argument is nil, and false if it isn't.
func (argument Argument) Nil () (isNil bool) {
isNil = argument.kind == ArgumentKindNil
return
}
// Value returns the underlying value of the argument. You can use Kind() to
// find out what to cast this to.
func (argument Argument) Value () (value any) {
value = argument.value
return
}
// Length returns the amount of members in the section.
func (section EnumSection) Length () (length int) {
length = len(section.members)
return
}
// Item returns the member at index.
func (section EnumSection) Item (index int) (member EnumMember) {
member = section.members[index]
return
}
// InputsLength returns the amount of inputs in the behavior.
func (behavior FaceBehavior) IntputsLength () (length int) {
length = len(behavior.inputs)
return
}
// Input returns the input at index.
func (behavior FaceBehavior) Input (index int) (input Declaration) {
input = behavior.inputs[index]
return
}
// OutputsLength returns the amount of outputs in the behavior.
func (behavior FaceBehavior) OutputsLength () (length int) {
length = len(behavior.outputs)
return
}
// Output returns the output at index.
func (behavior FaceBehavior) Output (index int) (output Declaration) {
output = behavior.outputs[index]
return
}
// Behaviors returns an iterator for the interface's behaviors.
func (section FaceSection) Behaviors () (iterator types.Iterator[FaceBehavior]) {
iterator = types.NewIterator(section.behaviors)
return
}
// External returns whether or not the data section is external.
func (section DataSection) External () (external bool) {
external = section.external
return
}
// Kind returns what kind of phrase it is.
func (phrase Phrase) Kind () (kind PhraseKind) {
kind = phrase.kind
return
}
// ReturneesLength returns the amount of things the phrase returns to.
func (phrase Phrase) ReturneesLength () (length int) {
length = len(phrase.returnees)
return
}
// Returnee returns the returnee at index.
func (phrase Phrase) Returnee (index int) (returnee Argument) {
returnee = phrase.returnees[index]
return
}
// Block returns the block under the phrase, if it is a control flow statement.
func (phrase Phrase) Block () (block Block) {
block = phrase.block
return
}
// Receiver returns the method receiver, if there is one. Otherwise, it returns
// nil.
func (section FuncSection) Receiver () (receiver *Declaration) {
receiver = section.receiver
return
}
// InputsLength returns the number of inputs in the function.
func (section FuncSection) InputsLength () (length int) {
length = len(section.inputs)
return
}
// Input returns the input at index.
func (section FuncSection) Input (index int) (input Declaration) {
input = section.inputs[index]
return
}
// OutputsLength returns the number of outputs in the function.
func (section FuncSection) OutputsLength () (length int) {
length = len(section.outputs)
return
}
// Root returns the root block of the section.
func (section FuncSection) Root () (root Block) {
root = section.root
return
}
// External returns whether or not the function is an external function or not.
func (section FuncSection) External () (external bool) {
external = section.external
return
}