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NumberParser
#351
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NumberParser
#351
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46 changes: 46 additions & 0 deletions
46
...cess/src/main/scala/org/alephium/ralph/lsp/access/compiler/parser/soft/NumberParser.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package org.alephium.ralph.lsp.access.compiler.parser.soft | ||
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| import fastparse._ | ||
| import fastparse.NoWhitespace.noWhitespaceImplicit | ||
| import org.alephium.ralph.lsp.access.compiler.message.SourceIndexExtra._ | ||
| import org.alephium.ralph.lsp.access.compiler.parser.soft.ast.{SoftAST, Token} | ||
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| object NumberParser { | ||
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| def parseOrFail[Unknown: P]: P[SoftAST.Number] = | ||
| P { | ||
| Index ~ | ||
| CommentParser.parseOrFail.? ~ | ||
| number ~ | ||
| SpaceParser.parseOrFail.? ~ | ||
| TokenParser.parseOrFail(Token.AlphLowercase).? ~ | ||
| Index | ||
| } map { | ||
| case (from, documentation, digits, postDigitSpace, unit, to) => | ||
| SoftAST.Number( | ||
| index = range(from, to), | ||
| documentation = documentation, | ||
| number = digits, | ||
| space = postDigitSpace, | ||
| unit = unit | ||
| ) | ||
| } | ||
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| private def number[Unknown: P]: P[SoftAST.CodeString] = | ||
| P { | ||
| Index ~ | ||
| isNumber ~ | ||
| (!Token.AlphLowercase.lexeme ~ CharIn("[0-9a-zA-Z]._+\\-")).rep(1).! ~ | ||
| Index | ||
| } map { | ||
| case (from, number, to) => | ||
| SoftAST.CodeString( | ||
| index = range(from, to), | ||
| text = number | ||
| ) | ||
| } | ||
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| private def isNumber[Unknown: P]: P[Unit] = | ||
| P(&(CharIn("+\\-").? ~ CharIn("[0-9]"))) | ||
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| } |
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216 changes: 216 additions & 0 deletions
216
.../src/test/scala/org/alephium/ralph/lsp/access/compiler/parser/soft/NumberParserSpec.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,216 @@ | ||
| package org.alephium.ralph.lsp.access.compiler.parser.soft | ||
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| import org.alephium.ralph.lsp.access.compiler.parser.soft.TestParser._ | ||
| import org.alephium.ralph.lsp.access.compiler.parser.soft.ast.SoftAST | ||
| import org.alephium.ralph.lsp.access.compiler.parser.soft.ast.TestSoftAST._ | ||
| import org.alephium.ralph.lsp.access.util.TestCodeUtil._ | ||
| import org.scalatest.matchers.should.Matchers | ||
| import org.scalatest.wordspec.AnyWordSpec | ||
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| class NumberParserSpec extends AnyWordSpec with Matchers { | ||
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| def assertSimpleNumber(number: String) = | ||
| parseNumber(number) shouldBe | ||
| Number( | ||
| index = indexOf(s">>$number<<"), | ||
| text = number | ||
| ) | ||
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| "integer" in { | ||
| assertSimpleNumber("10") | ||
| assertSimpleNumber("-10") | ||
| assertSimpleNumber("+10") | ||
| } | ||
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| "typed" in { | ||
| assertSimpleNumber("10u") | ||
| assertSimpleNumber("10i") | ||
| assertSimpleNumber("-10u") | ||
| assertSimpleNumber("-10i") | ||
| assertSimpleNumber("+10u") | ||
| assertSimpleNumber("+10i") | ||
| } | ||
|
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| "scientific" in { | ||
| assertSimpleNumber("1e18") | ||
| assertSimpleNumber("-1e18") | ||
| assertSimpleNumber("+1e18") | ||
| assertSimpleNumber("5.12e18") | ||
| assertSimpleNumber("-5.12e18") | ||
| assertSimpleNumber("+5.12e18") | ||
| } | ||
|
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| "underscored" in { | ||
| assertSimpleNumber("1_000_000_000") | ||
| assertSimpleNumber("-1_000_000_000") | ||
| assertSimpleNumber("+1_000_000_000") | ||
| } | ||
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| "hex" in { | ||
| assertSimpleNumber("0x12") | ||
| assertSimpleNumber("-0x12") | ||
| assertSimpleNumber("+0x12") | ||
| } | ||
|
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| "unit" when { | ||
| "invalid" in { | ||
| assertSimpleNumber("1alp") | ||
| assertSimpleNumber("-1alp") | ||
| assertSimpleNumber("+1alp") | ||
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| assertSimpleNumber("1lph") | ||
| assertSimpleNumber("-1lph") | ||
| assertSimpleNumber("+1lph") | ||
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| assertSimpleNumber("1hpla") | ||
| assertSimpleNumber("-1hpla") | ||
| assertSimpleNumber("+1hpla") | ||
| } | ||
|
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| "valid" when { | ||
| "no spaces" when { | ||
| def testWithUnit(numberOnly: String) = | ||
| parseNumber(s"${numberOnly}alph") shouldBe | ||
| SoftAST.Number( | ||
| index = indexOf(s">>${numberOnly}alph<<"), | ||
| documentation = None, | ||
| number = SoftAST.CodeString( | ||
| index = indexOf(s">>$numberOnly<<alph"), | ||
| text = numberOnly | ||
| ), | ||
| space = None, | ||
| unit = Some(AlphLowercase(indexOf(s"$numberOnly>>alph<<"))) | ||
| ) | ||
|
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| "no sign" in { | ||
| testWithUnit("1") | ||
| testWithUnit("5.12e18") | ||
| testWithUnit("0x12") | ||
| } | ||
|
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| "positive" in { | ||
| testWithUnit("+1") | ||
| testWithUnit("+5.12e18") | ||
| testWithUnit("+0x12") | ||
| } | ||
|
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| "negative" in { | ||
| testWithUnit("-1") | ||
| testWithUnit("-5.12e18") | ||
| testWithUnit("-0x12") | ||
| } | ||
| } | ||
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| "with space" when { | ||
| def testWithUnit(numberOnly: String) = | ||
| parseNumber(s"$numberOnly alph") shouldBe | ||
| SoftAST.Number( | ||
| index = indexOf(s">>$numberOnly alph<<"), | ||
| documentation = None, | ||
| number = SoftAST.CodeString( | ||
| index = indexOf(s">>$numberOnly<< alph"), | ||
| text = numberOnly | ||
| ), | ||
| space = Some(SpaceOne(indexOf(s"$numberOnly>> <<alph"))), | ||
| unit = Some(AlphLowercase(indexOf(s"$numberOnly >>alph<<"))) | ||
| ) | ||
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| "no sign" in { | ||
| testWithUnit("1") | ||
| testWithUnit("5.12e18") | ||
| testWithUnit("0x12") | ||
| } | ||
|
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| "positive" in { | ||
| testWithUnit("+1") | ||
| testWithUnit("+5.12e18") | ||
| testWithUnit("+0x12") | ||
| } | ||
|
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| "negative" in { | ||
| testWithUnit("-1") | ||
| testWithUnit("-5.12e18") | ||
| testWithUnit("-0x12") | ||
| } | ||
| } | ||
|
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| "scientific number" when { | ||
| "without space" when { | ||
| "valid unit" in { | ||
| parseNumber("1e-18alph") shouldBe | ||
| SoftAST.Number( | ||
| index = indexOf(s">>1e-18alph<<"), | ||
| documentation = None, | ||
| number = SoftAST.CodeString( | ||
| index = indexOf(s">>1e-18<<alph"), | ||
| text = "1e-18" | ||
| ), | ||
| space = None, | ||
| unit = Some(AlphLowercase(indexOf("1e-18>>alph<<"))) | ||
| ) | ||
| } | ||
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| "invalid unit - 'alp' is typo" in { | ||
| parseNumber("1e-18alp") shouldBe | ||
| SoftAST.Number( | ||
| index = indexOf(s">>1e-18alp<<"), | ||
| documentation = None, | ||
| number = SoftAST.CodeString( | ||
| index = indexOf(s">>1e-18alp<<"), | ||
| text = "1e-18alp" | ||
| ), | ||
| space = None, | ||
| unit = None | ||
| ) | ||
| } | ||
| } | ||
|
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| "with space" when { | ||
| "valid unit" in { | ||
| parseNumber("1e-18 alph") shouldBe | ||
| SoftAST.Number( | ||
| index = indexOf(s">>1e-18 alph<<"), | ||
| documentation = None, | ||
| number = SoftAST.CodeString( | ||
| index = indexOf(s">>1e-18<< alph"), | ||
| text = "1e-18" | ||
| ), | ||
| space = Some(SpaceOne(indexOf("1e-18>> <<alph"))), | ||
| unit = Some(AlphLowercase(indexOf("1e-18 >>alph<<"))) | ||
| ) | ||
| } | ||
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| "invalid unit - 'alp' is typo" in { | ||
| val body = parseSoft("1e-18 alp") | ||
| body.parts should have size 2 | ||
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| val number = body.parts.head.part | ||
| val alp = body.parts.last.part | ||
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| // Note: alp is not a unit. So it's not parsed as part of the number. | ||
| number shouldBe | ||
| SoftAST.Number( | ||
| index = indexOf(s">>1e-18 << alp"), | ||
| documentation = None, | ||
| number = SoftAST.CodeString( | ||
| index = indexOf(s">>1e-18<< alp"), | ||
| text = "1e-18" | ||
| ), | ||
| space = Some(SpaceOne(indexOf("1e-18>> <<alp"))), | ||
| unit = None | ||
| ) | ||
|
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| // alp is stored as an identifier | ||
| alp shouldBe | ||
| Identifier( | ||
| index = indexOf(s"1e-18 >>alp<<"), | ||
| text = "alp" | ||
| ) | ||
| } | ||
| } | ||
|
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| } | ||
| } | ||
| } | ||
|
|
||
| } | ||
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nice tests as always