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2 Commits

Author SHA1 Message Date
5988e75939 bun run repl 2025-10-25 10:21:00 -07:00
5234ad9a73 better stuff 2025-10-25 09:53:45 -07:00
7 changed files with 67 additions and 49 deletions

View File

@ -112,18 +112,18 @@ describe('compiler', () => {
end`).toEvaluateTo('white')
})
test('if elsif', () => {
test('if elseif', () => {
expect(`if false:
boromir
elsif true:
elseif true:
frodo
end`).toEvaluateTo('frodo')
})
test('if elsif else', () => {
test('if elseif else', () => {
expect(`if false:
destroyed
elsif true:
elseif true:
fire
else:
darkness
@ -131,9 +131,9 @@ describe('compiler', () => {
expect(`if false:
king
elsif false:
elseif false:
elf
elsif true:
elseif true:
dwarf
else:
scattered

View File

@ -140,11 +140,11 @@ export const getIfExprParts = (node: SyntaxNode, input: string) => {
throw new CompilerError(message, child.from, child.to)
}
elseThenBlock = parts.at(-1)
} else if (child.type.id === terms.ElsifExpr) {
} else if (child.type.id === terms.ElseIfExpr) {
const [_keyword, conditional, _colon, thenBlock] = parts
if (!conditional || !thenBlock) {
const names = parts.map((p) => p.type.name).join(', ')
const message = `ElsifExpr expected conditional and thenBlock, got ${names}`
const message = `ElseIfExpr expected conditional and thenBlock, got ${names}`
throw new CompilerError(message, child.from, child.to)
}

View File

@ -22,7 +22,6 @@
rightParen { ")" }
colon[closedBy="end", @name="colon"] { ":" }
Underscore { "_" }
Null { "null" }
Regex { "//" (![/\\\n[] | "\\" ![\n] | "[" (![\n\\\]] | "\\" ![\n])* "]")+ ("//" $[gimsuy]*)? } // Stolen from the lezer JavaScript grammar
"|"[@name=operator]
@ -109,11 +108,11 @@ singleLineIf {
}
multilineIf {
@specialize[@name=keyword]<Identifier, "if"> (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock ElsifExpr* ElseExpr? @specialize[@name=keyword]<Identifier, "end">
@specialize[@name=keyword]<Identifier, "if"> (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock ElseIfExpr* ElseExpr? @specialize[@name=keyword]<Identifier, "end">
}
ElsifExpr {
@specialize[@name=keyword]<Identifier, "elsif"> (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock
ElseIfExpr {
@specialize[@name=keyword]<Identifier, "elseif"> (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock
}
ElseExpr {
@ -196,7 +195,7 @@ EscapeSeq {
// to go through ambiguousFunctionCall (which is what we want semantically).
// Yes, it is annoying and I gave up trying to use GLR to fix it.
expressionWithoutIdentifier {
ParenExpr | Word | String | Number | Boolean | Regex | Null
ParenExpr | Word | String | Number | Boolean | Regex | @specialize[@name=Null]<Identifier, "null">
}
block {

View File

@ -1,6 +1,5 @@
// This file was generated by lezer-generator. You probably shouldn't edit it.
export const
Star = 1,
export const Star = 1,
Slash = 2,
Plus = 3,
Minus = 4,
@ -42,6 +41,6 @@ export const
NamedArgPrefix = 41,
IfExpr = 43,
ThenBlock = 46,
ElsifExpr = 47,
ElseIfExpr = 47,
ElseExpr = 49,
Assign = 51

View File

@ -1,27 +1,39 @@
// This file was generated by lezer-generator. You probably shouldn't edit it.
import {LRParser, LocalTokenGroup} from "@lezer/lr"
import {operatorTokenizer} from "./operatorTokenizer"
import {tokenizer} from "./tokenizer"
import {trackScope} from "./scopeTracker"
import {highlighting} from "./highlight"
const spec_Identifier = {__proto__:null,do:70, end:76, if:88, elsif:96, else:100}
import { LRParser, LocalTokenGroup } from '@lezer/lr'
import { operatorTokenizer } from './operatorTokenizer'
import { tokenizer } from './tokenizer'
import { trackScope } from './scopeTracker'
import { highlighting } from './highlight'
const spec_Identifier = {
__proto__: null,
null: 64,
do: 70,
end: 76,
if: 88,
elseif: 96,
else: 100,
}
export const parser = LRParser.deserialize({
version: 14,
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states:
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nodeNames:
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maxTerm: 84,
context: trackScope,
nodeProps: [
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],
nodeProps: [['closedBy', 37, 'end']],
propSources: [highlighting],
skippedNodes: [0],
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tokenizers: [operatorTokenizer, 1, 2, 3, tokenizer, new LocalTokenGroup("[~RP!O!PU~ZO!o~~", 11)],
topRules: {"Program":[0,17]},
specialized: [{term: 13, get: (value: keyof typeof spec_Identifier) => spec_Identifier[value] || -1}],
tokenPrec: 768
tokenData:
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tokenizers: [operatorTokenizer, 1, 2, 3, tokenizer, new LocalTokenGroup('[~RP!O!PU~ZO!o~~', 11)],
topRules: { Program: [0, 17] },
specialized: [
{ term: 13, get: (value: keyof typeof spec_Identifier) => spec_Identifier[value] || -1 },
],
tokenPrec: 768,
})

View File

@ -14,6 +14,14 @@ describe('null', () => {
Eq =
Null null`)
})
test('does not parse null in identifier', () => {
expect('null-jk = 5').toMatchTree(`
Assign
AssignableIdentifier null-jk
Eq =
Number 5`)
})
})
describe('Identifier', () => {

View File

@ -2,7 +2,7 @@ import { expect, describe, test } from 'bun:test'
import '../shrimp.grammar' // Importing this so changes cause it to retest!
describe('if/elsif/else', () => {
describe('if/elseif/else', () => {
test('parses single line if', () => {
expect(`if y = 1: 'cool'`).toMatchTree(`
IfExpr
@ -72,21 +72,21 @@ describe('if/elsif/else', () => {
`)
})
test('parses multiline if with elsif', () => {
expect(`if with-elsif:
test('parses multiline if with elseif', () => {
expect(`if with-elseif:
x
elsif another-condition:
elseif another-condition:
y
end`).toMatchTree(`
IfExpr
keyword if
Identifier with-elsif
Identifier with-elseif
colon :
ThenBlock
FunctionCallOrIdentifier
Identifier x
ElsifExpr
keyword elsif
ElseIfExpr
keyword elseif
Identifier another-condition
colon :
ThenBlock
@ -96,32 +96,32 @@ describe('if/elsif/else', () => {
`)
})
test('parses multiline if with multiple elsif and else', () => {
expect(`if with-elsif-else:
test('parses multiline if with multiple elseif and else', () => {
expect(`if with-elseif-else:
x
elsif another-condition:
elseif another-condition:
y
elsif yet-another-condition:
elseif yet-another-condition:
z
else:
oh-no
end`).toMatchTree(`
IfExpr
keyword if
Identifier with-elsif-else
Identifier with-elseif-else
colon :
ThenBlock
FunctionCallOrIdentifier
Identifier x
ElsifExpr
keyword elsif
ElseIfExpr
keyword elseif
Identifier another-condition
colon :
ThenBlock
FunctionCallOrIdentifier
Identifier y
ElsifExpr
keyword elsif
ElseIfExpr
keyword elseif
Identifier yet-another-condition
colon :
ThenBlock