Mason Payne
9b209dfe63
I don't think I like the SDK way, and langV2 seems to be so simialr to V1 that I'm probably going to stick with V1 for now and see if i can get it to do what I need.
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package langV2
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import (
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participle "github.com/alecthomas/participle/v2"
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)
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// Root AST node containing all definitions
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type AST struct {
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Definitions []Definition `parser:"@@*"`
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}
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type Definition struct {
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Entity *EntityDef `parser:"@@"`
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Server *ServerDef `parser:"| @@"`
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Page *PageDef `parser:"| @@"`
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Component *ComponentDef `parser:"| @@"`
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}
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type EntityDef struct {
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Name string `parser:"'entity' @Ident"`
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Fields []Field `parser:"'{' @@* '}'"`
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}
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type Field struct {
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Name string `parser:"@Ident ':'"`
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Type string `parser:"@Ident"`
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Required bool `parser:"@'required'?"`
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Unique bool `parser:"@'unique'?"`
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Index bool `parser:"@'indexed'?"`
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Default *string `parser:"('default' @String)?"`
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Validations []Validation `parser:"@@*"`
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Relationship *Relationship `parser:"@@?"`
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}
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type Validation struct {
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Type string `parser:"'validate' @Ident"`
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Value *string `parser:"@String?"`
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}
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type Relationship struct {
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Type string `parser:"'relates' 'to' @Ident"`
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Cardinality string `parser:"'as' @('one' | 'many')"`
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ForeignKey *string `parser:"('via' @String)?"`
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}
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type ServerDef struct {
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Name string `parser:"'server' @Ident"`
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Endpoints []EndpointDef `parser:"'{' @@* '}'"`
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}
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type EndpointDef struct {
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Method string `parser:"@('GET'|'POST'|'PUT'|'DELETE')"`
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Path string `parser:"@String"`
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EntityRef string `parser:"'entity' @Ident"`
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}
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type ComponentDef struct {
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EntityRef string `parser:"@Ident"`
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ServerRef string `parser:"('from' @Ident)?"`
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}
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type PageDef struct {
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Name string `parser:"'page' @Ident"`
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Components []ComponentDef `parser:"'{' @@* '}'"`
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}
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func ParseInput(input string) (AST, error) {
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parser, err := participle.Build[AST](
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participle.Unquote("String"),
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)
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if err != nil {
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return AST{}, err
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}
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ast, err := parser.ParseString("", input)
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if err != nil {
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return AST{}, err
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}
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return *ast, nil
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}
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