37809b8aa7
Adds src/main/grammar/Jai.bnf, the generated parser/PSI in src/main/gen, a
JaiParserDefinition, and the Tier 3 corpus parse gate (406/714 files clean).
Two things were not obvious:
- Grammar-Kit mints its own token instances from the .bnf 'tokens' block, which
are different objects from the ones JaiLexer emits, so every rule silently
failed to match. Fixed with tokenTypeFactory -> JaiTokenTypes.byName.
- A backslash inside an identifier is a continuation in the compiler's lexer
(Jai_Lexer/module.jai:444): 'left\_margin' is one identifier. JaiLexer now
does the same; the Tier 0 round-trip still holds because the token span
covers the backslash and the skipped spaces.
Constructs that BNF alone cannot express live in JaiParserUtil: directive-name
tests (#ident is one token), '==' before '{' for the switch form, procedure
header vs parenthesised expression, and the declaration lookahead.
37 lines
1.2 KiB
Kotlin
37 lines
1.2 KiB
Kotlin
package dev.hgh.jai.psi
|
|
|
|
import com.intellij.lang.ASTNode
|
|
import com.intellij.lang.ParserDefinition
|
|
import com.intellij.lang.PsiParser
|
|
import com.intellij.lexer.Lexer
|
|
import com.intellij.openapi.project.Project
|
|
import com.intellij.psi.FileViewProvider
|
|
import com.intellij.psi.PsiElement
|
|
import com.intellij.psi.PsiFile
|
|
import com.intellij.psi.tree.IFileElementType
|
|
import com.intellij.psi.tree.TokenSet
|
|
import dev.hgh.jai.JaiLanguage
|
|
import dev.hgh.jai.lexer.JaiLexer
|
|
import dev.hgh.jai.lexer.JaiTokenTypes
|
|
import dev.hgh.jai.parser.JaiParser
|
|
|
|
class JaiParserDefinition : ParserDefinition {
|
|
override fun createLexer(project: Project?): Lexer = JaiLexer()
|
|
|
|
override fun createParser(project: Project?): PsiParser = JaiParser()
|
|
|
|
override fun getFileNodeType(): IFileElementType = FILE
|
|
|
|
override fun getCommentTokens(): TokenSet = JaiTokenTypes.COMMENTS
|
|
|
|
override fun getStringLiteralElements(): TokenSet = JaiTokenTypes.STRINGS
|
|
|
|
override fun createElement(node: ASTNode?): PsiElement = JaiTypes.Factory.createElement(node)
|
|
|
|
override fun createFile(viewProvider: FileViewProvider): PsiFile = JaiFile(viewProvider)
|
|
|
|
companion object {
|
|
val FILE = IFileElementType(JaiLanguage)
|
|
}
|
|
}
|