mirror of
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678 lines
24 KiB
Kotlin
678 lines
24 KiB
Kotlin
package prog8tests.ast
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import org.junit.jupiter.api.Nested
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import org.junit.jupiter.api.Test
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import org.junit.jupiter.api.TestInstance
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import prog8.ast.IFunctionCall
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import prog8.ast.Module
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import prog8.ast.Node
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import prog8.ast.Program
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import prog8.ast.base.DataType
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import prog8.ast.base.Position
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import prog8.ast.expressions.CharLiteral
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import prog8.ast.expressions.NumericLiteralValue
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import prog8.ast.expressions.RangeExpr
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import prog8.ast.expressions.StringLiteralValue
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import prog8.ast.statements.*
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import prog8.parser.ParseError
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import prog8.parser.Prog8Parser.parseModule
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import prog8.parser.SourceCode
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import prog8tests.ast.helpers.*
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import prog8tests.ast.helpers.DummyFunctions
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import prog8tests.ast.helpers.DummyMemsizer
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import kotlin.io.path.Path
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import kotlin.io.path.isRegularFile
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import kotlin.io.path.name
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import kotlin.io.path.nameWithoutExtension
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import kotlin.test.*
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@TestInstance(TestInstance.Lifecycle.PER_CLASS)
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class TestProg8Parser {
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@Nested
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inner class Newline {
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@Nested
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inner class AtEnd {
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@Test
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fun `is not required - #40, fixed by #45`() {
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val nl = "\n" // say, Unix-style (different flavours tested elsewhere)
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val src = SourceCode.Text("foo {" + nl + "}") // source ends with '}' (= NO newline, issue #40)
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// #40: Prog8ANTLRParser would report (throw) "missing <EOL> at '<EOF>'"
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val module = parseModule(src)
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assertEquals(1, module.statements.size)
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}
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@Test
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fun `is still accepted - #40, fixed by #45`() {
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val nl = "\n" // say, Unix-style (different flavours tested elsewhere)
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val srcText = "foo {" + nl + "}" + nl // source does end with a newline (issue #40)
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val module = parseModule(SourceCode.Text(srcText))
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assertEquals(1, module.statements.size)
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}
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}
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@Test
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fun `is required after each block except the last`() {
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val nl = "\n" // say, Unix-style (different flavours tested elsewhere)
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// BAD: 2nd block `bar` does NOT start on new line; however, there's is a nl at the very end
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val srcBad = "foo {" + nl + "}" + " bar {" + nl + "}" + nl
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// GOOD: 2nd block `bar` does start on a new line; however, a nl at the very end ain't needed
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val srcGood = "foo {" + nl + "}" + nl + "bar {" + nl + "}"
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assertFailsWith<ParseError> { parseModule(SourceCode.Text(srcBad)) }
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val module = parseModule(SourceCode.Text(srcGood))
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assertEquals(2, module.statements.size)
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}
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@Test
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fun `is required between two Blocks or Directives - #47`() {
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// block and block
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assertFailsWith<ParseError>{ parseModule(SourceCode.Text("""
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blockA {
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} blockB {
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}
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""")) }
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// block and directive
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assertFailsWith<ParseError>{ parseModule(SourceCode.Text("""
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blockB {
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} %import textio
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""")) }
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// The following two are bogus due to directive *args* expected to follow the directive name.
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// Leaving them in anyways.
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// dir and block
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assertFailsWith<ParseError>{ parseModule(SourceCode.Text("""
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%import textio blockB {
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}
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""")) }
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assertFailsWith<ParseError>{ parseModule(SourceCode.Text("""
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%import textio %import syslib
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""")) }
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}
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@Test
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fun `can be Win, Unix or mixed, even mixed`() {
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val nlWin = "\r\n"
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val nlUnix = "\n"
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val nlMac = "\r"
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//parseModule(Paths.get("test", "fixtures", "mac_newlines.p8").toAbsolutePath())
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// a good mix of all kinds of newlines:
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val srcText =
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"foo {" +
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nlMac +
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nlWin +
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"}" +
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nlMac + // <-- do test a single \r (!) where an EOL is expected
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"bar {" +
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nlUnix +
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"}" +
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nlUnix + nlMac // both should be "eaten up" by just one EOL token
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"combi {" +
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nlMac + nlWin + nlUnix // all three should be "eaten up" by just one EOL token
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"}" +
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nlUnix // end with newline (see testModuleSourceNeedNotEndWithNewline)
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val module = parseModule(SourceCode.Text(srcText))
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assertEquals(2, module.statements.size)
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}
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}
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@Nested
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inner class EOLsInterleavedWithComments {
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@Test
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fun `are ok before first block - #47`() {
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// issue: #47
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val srcText = """
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; comment
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; comment
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blockA {
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}
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"""
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val module = parseModule(SourceCode.Text(srcText))
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assertEquals(1, module.statements.size)
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}
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@Test
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fun `are ok between blocks - #47`() {
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// issue: #47
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val srcText = """
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blockA {
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}
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; comment
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; comment
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blockB {
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}
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"""
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val module = parseModule(SourceCode.Text(srcText))
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assertEquals(2, module.statements.size)
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}
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@Test
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fun `are ok after last block - #47`() {
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// issue: #47
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val srcText = """
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blockA {
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}
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; comment
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; comment
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"""
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val module = parseModule(SourceCode.Text(srcText))
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assertEquals(1, module.statements.size)
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}
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}
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@Nested
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inner class ImportDirectives {
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@Test
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fun `should not be looked into by the parser`() {
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val importedNoExt = assumeNotExists(fixturesDir, "i_do_not_exist")
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assumeNotExists(fixturesDir, "i_do_not_exist.p8")
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val text = "%import ${importedNoExt.name}"
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val module = parseModule(SourceCode.Text(text))
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assertEquals(1, module.statements.size)
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}
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}
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@Nested
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inner class EmptySourcecode {
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@Test
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fun `from an empty string should result in empty Module`() {
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val module = parseModule(SourceCode.Text(""))
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assertEquals(0, module.statements.size)
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}
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@Test
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fun `from an empty file should result in empty Module`() {
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val path = assumeReadableFile(fixturesDir, "empty.p8")
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val module = parseModule(SourceCode.File(path))
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assertEquals(0, module.statements.size)
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}
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}
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@Nested
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inner class NameOfModule {
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@Test
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fun `parsed from a string`() {
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val srcText = """
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main {
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}
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""".trimIndent()
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val module = parseModule(SourceCode.Text(srcText))
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// Note: assertContains has *actual* as first param
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assertContains(module.name, Regex("^<String@[0-9a-f\\-]+>$"))
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}
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@Test
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fun `parsed from a file`() {
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val path = assumeReadableFile(fixturesDir, "simple_main.p8")
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val module = parseModule(SourceCode.File(path))
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assertEquals(path.nameWithoutExtension, module.name)
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}
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}
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@Nested
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inner class PositionOfAstNodesAndParseErrors {
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private fun assertPosition(
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actual: Position,
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expFile: String? = null,
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expLine: Int? = null,
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expStartCol: Int? = null,
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expEndCol: Int? = null
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) {
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require(!listOf(expLine, expStartCol, expEndCol).all { it == null })
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if (expLine != null) assertEquals(expLine, actual.line, ".position.line (1-based)")
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if (expStartCol != null) assertEquals(expStartCol, actual.startCol, ".position.startCol (0-based)")
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if (expEndCol != null) assertEquals(expEndCol, actual.endCol, ".position.endCol (0-based)")
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if (expFile != null) assertEquals(expFile, actual.file, ".position.file")
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}
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private fun assertPosition(
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actual: Position,
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expFile: Regex? = null,
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expLine: Int? = null,
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expStartCol: Int? = null,
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expEndCol: Int? = null
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) {
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require(!listOf(expLine, expStartCol, expEndCol).all { it == null })
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if (expLine != null) assertEquals(expLine, actual.line, ".position.line (1-based)")
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if (expStartCol != null) assertEquals(expStartCol, actual.startCol, ".position.startCol (0-based)")
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if (expEndCol != null) assertEquals(expEndCol, actual.endCol, ".position.endCol (0-based)")
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// Note: assertContains expects *actual* value first
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if (expFile != null) assertContains(actual.file, expFile, ".position.file")
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}
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private fun assertPositionOf(
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actual: Node,
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expFile: String? = null,
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expLine: Int? = null,
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expStartCol: Int? = null,
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expEndCol: Int? = null
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) =
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assertPosition(actual.position, expFile, expLine, expStartCol, expEndCol)
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private fun assertPositionOf(
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actual: Node,
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expFile: Regex? = null,
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expLine: Int? = null,
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expStartCol: Int? = null,
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expEndCol: Int? = null
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) =
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assertPosition(actual.position, expFile, expLine, expStartCol, expEndCol)
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@Test
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fun `in ParseError from bad string source code`() {
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val srcText = "bad * { }\n"
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assertFailsWith<ParseError> { parseModule(SourceCode.Text(srcText)) }
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try {
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parseModule(SourceCode.Text(srcText))
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} catch (e: ParseError) {
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assertPosition(e.position, Regex("^<String@[0-9a-f\\-]+>$"), 1, 4, 4)
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}
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}
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@Test
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fun `in ParseError from bad file source code`() {
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val path = assumeReadableFile(fixturesDir, "file_with_syntax_error.p8")
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assertFailsWith<ParseError> { parseModule(SourceCode.File(path)) }
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try {
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parseModule(SourceCode.File(path))
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} catch (e: ParseError) {
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assertPosition(e.position, SourceCode.relative(path).toString(), 2, 6) // TODO: endCol wrong
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}
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}
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@Test
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fun `of Module parsed from a string`() {
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val srcText = """
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main {
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}
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""".trimIndent()
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val module = parseModule(SourceCode.Text(srcText))
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assertPositionOf(module, Regex("^<String@[0-9a-f\\-]+>$"), 1, 0) // TODO: endCol wrong
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}
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@Test
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fun `of Module parsed from a file`() {
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val path = assumeReadableFile(fixturesDir, "simple_main.p8")
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val module = parseModule(SourceCode.File(path))
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assertPositionOf(module, SourceCode.relative(path).toString(), 1, 0) // TODO: endCol wrong
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}
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@Test
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fun `of non-root Nodes parsed from file`() {
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val path = assumeReadableFile(fixturesDir, "simple_main.p8")
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val module = parseModule(SourceCode.File(path))
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val mpf = module.position.file
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assertPositionOf(module, SourceCode.relative(path).toString(), 1, 0) // TODO: endCol wrong
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val mainBlock = module.statements.filterIsInstance<Block>()[0]
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assertPositionOf(mainBlock, mpf, 2, 0) // TODO: endCol wrong!
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val startSub = mainBlock.statements.filterIsInstance<Subroutine>()[0]
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assertPositionOf(startSub, mpf, 3, 4) // TODO: endCol wrong!
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}
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/**
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* TODO: this test is testing way too much at once
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*/
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@Test
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fun `of non-root Nodes parsed from a string`() {
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val srcText = """
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%zeropage basicsafe ; DirectiveArg directly inherits from Node - neither an Expression nor a Statement..?
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main {
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sub start() {
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ubyte foo = 42
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ubyte bar
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when (foo) {
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23 -> bar = 'x' ; WhenChoice, also directly inheriting Node
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42 -> bar = 'y'
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else -> bar = 'z'
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}
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}
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}
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""".trimIndent()
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val module = parseModule(SourceCode.Text(srcText))
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val mpf = module.position.file
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val targetDirective = module.statements.filterIsInstance<Directive>()[0]
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assertPositionOf(targetDirective, mpf, 1, 0) // TODO: endCol wrong!
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val mainBlock = module.statements.filterIsInstance<Block>()[0]
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assertPositionOf(mainBlock, mpf, 2, 0) // TODO: endCol wrong!
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val startSub = mainBlock.statements.filterIsInstance<Subroutine>()[0]
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assertPositionOf(startSub, mpf, 3, 4) // TODO: endCol wrong!
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val declFoo = startSub.statements.filterIsInstance<VarDecl>()[0]
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assertPositionOf(declFoo, mpf, 4, 8) // TODO: endCol wrong!
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val rhsFoo = declFoo.value!!
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assertPositionOf(rhsFoo, mpf, 4, 20) // TODO: endCol wrong!
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val declBar = startSub.statements.filterIsInstance<VarDecl>()[1]
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assertPositionOf(declBar, mpf, 5, 8) // TODO: endCol wrong!
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val whenStmt = startSub.statements.filterIsInstance<WhenStatement>()[0]
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assertPositionOf(whenStmt, mpf, 6, 8) // TODO: endCol wrong!
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assertPositionOf(whenStmt.choices[0], mpf, 7, 12) // TODO: endCol wrong!
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assertPositionOf(whenStmt.choices[1], mpf, 8, 12) // TODO: endCol wrong!
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assertPositionOf(whenStmt.choices[2], mpf, 9, 12) // TODO: endCol wrong!
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}
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}
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@Nested
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inner class PositionFile {
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@Test
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fun `isn't absolute for filesystem paths`() {
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val path = assumeReadableFile(fixturesDir, "simple_main.p8")
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val module = parseModule(SourceCode.File(path))
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assertSomethingForAllNodes(module) {
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assertFalse(Path(it.position.file).isAbsolute)
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assertTrue(Path(it.position.file).isRegularFile())
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}
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}
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@Test
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fun `is mangled string id for string sources`()
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{
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val srcText="""
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%zeropage basicsafe
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main {
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sub start() {
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ubyte aa=99
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aa++
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}
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}
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""".trimIndent()
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val module = parseModule(SourceCode.Text(srcText))
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assertSomethingForAllNodes(module) {
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assertTrue(it.position.file.startsWith(SourceCode.stringSourcePrefix))
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}
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}
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@Test
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fun `is library prefixed path for resources`()
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{
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val resource = SourceCode.Resource("prog8lib/math.p8")
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val module = parseModule(resource)
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assertSomethingForAllNodes(module) {
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assertTrue(it.position.file.startsWith(SourceCode.libraryFilePrefix))
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}
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}
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private fun assertSomethingForAllNodes(module: Module, asserter: (Node) -> Unit) {
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asserter(module)
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module.statements.forEach(asserter)
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module.statements.filterIsInstance<Block>().forEach { b ->
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asserter(b)
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b.statements.forEach(asserter)
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b.statements.filterIsInstance<Subroutine>().forEach { s ->
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asserter(s)
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s.statements.forEach(asserter)
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}
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}
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} }
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@Nested
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inner class CharLiterals {
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@Test
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fun `in argument position, no altEnc`() {
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val src = SourceCode.Text("""
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main {
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sub start() {
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chrout('\n')
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}
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}
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""")
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val module = parseModule(src)
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val startSub = module
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.statements.filterIsInstance<Block>()[0]
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.statements.filterIsInstance<Subroutine>()[0]
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val funCall = startSub.statements.filterIsInstance<IFunctionCall>().first()
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assertIs<CharLiteral>(funCall.args[0])
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val char = funCall.args[0] as CharLiteral
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assertEquals('\n', char.value)
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}
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@Test
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fun `on rhs of block-level var decl, no AltEnc`() {
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val src = SourceCode.Text("""
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main {
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ubyte c = 'x'
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}
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""")
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val module = parseModule(src)
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val decl = module
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.statements.filterIsInstance<Block>()[0]
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.statements.filterIsInstance<VarDecl>()[0]
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val rhs = decl.value as CharLiteral
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assertEquals('x', rhs.value, "char literal's .value")
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assertEquals(false, rhs.altEncoding, "char literal's .altEncoding")
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}
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@Test
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fun `on rhs of block-level const decl, with AltEnc`() {
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val src = SourceCode.Text("""
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main {
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const ubyte c = @'x'
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}
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""")
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val module = parseModule(src)
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val decl = module
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.statements.filterIsInstance<Block>()[0]
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.statements.filterIsInstance<VarDecl>()[0]
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val rhs = decl.value as CharLiteral
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assertEquals('x', rhs.value, "char literal's .value")
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assertEquals(true, rhs.altEncoding, "char literal's .altEncoding")
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}
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@Test
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fun `on rhs of subroutine-level var decl, no AltEnc`() {
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val src = SourceCode.Text("""
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main {
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sub start() {
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ubyte c = 'x'
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}
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}
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""")
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val module = parseModule(src)
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val decl = module
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.statements.filterIsInstance<Block>()[0]
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.statements.filterIsInstance<Subroutine>()[0]
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.statements.filterIsInstance<VarDecl>()[0]
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val rhs = decl.value as CharLiteral
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assertEquals('x', rhs.value, "char literal's .value")
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assertEquals(false, rhs.altEncoding, "char literal's .altEncoding")
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}
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@Test
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fun `on rhs of subroutine-level const decl, with AltEnc`() {
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val src = SourceCode.Text("""
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main {
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sub start() {
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const ubyte c = @'x'
|
|
}
|
|
}
|
|
""")
|
|
val module = parseModule(src)
|
|
val decl = module
|
|
.statements.filterIsInstance<Block>()[0]
|
|
.statements.filterIsInstance<Subroutine>()[0]
|
|
.statements.filterIsInstance<VarDecl>()[0]
|
|
|
|
val rhs = decl.value as CharLiteral
|
|
assertEquals('x', rhs.value, "char literal's .value")
|
|
assertEquals(true, rhs.altEncoding, "char literal's .altEncoding")
|
|
}
|
|
}
|
|
|
|
@Nested
|
|
inner class Ranges {
|
|
|
|
@Test
|
|
fun `in for-loops`() {
|
|
val module = parseModule(SourceCode.Text("""
|
|
main {
|
|
sub start() {
|
|
ubyte ub
|
|
for ub in "start" downto "end" { ; #0
|
|
}
|
|
for ub in "something" { ; #1
|
|
}
|
|
for ub in @'a' to 'f' { ; #2
|
|
}
|
|
for ub in false to true { ; #3
|
|
}
|
|
for ub in 9 to 1 { ; #4 - yes, *parser* should NOT check!
|
|
}
|
|
}
|
|
}
|
|
"""))
|
|
val iterables = module
|
|
.statements.filterIsInstance<Block>()[0]
|
|
.statements.filterIsInstance<Subroutine>()[0]
|
|
.statements.filterIsInstance<ForLoop>()
|
|
.map { it.iterable }
|
|
|
|
assertEquals(5, iterables.size)
|
|
|
|
val it0 = iterables[0] as RangeExpr
|
|
assertIs<StringLiteralValue>(it0.from, "parser should leave it as is")
|
|
assertIs<StringLiteralValue>(it0.to, "parser should leave it as is")
|
|
|
|
val it1 = iterables[1] as StringLiteralValue
|
|
assertEquals("something", it1.value, "parser should leave it as is")
|
|
|
|
val it2 = iterables[2] as RangeExpr
|
|
assertIs<CharLiteral>(it2.from, "parser should leave it as is")
|
|
assertIs<CharLiteral>(it2.to, "parser should leave it as is")
|
|
|
|
val it3 = iterables[3] as RangeExpr
|
|
assertIs<NumericLiteralValue>(it3.from, "parser should leave it as is")
|
|
assertIs<NumericLiteralValue>(it3.to, "parser should leave it as is")
|
|
|
|
val it4 = iterables[4] as RangeExpr
|
|
assertIs<NumericLiteralValue>(it4.from, "parser should leave it as is")
|
|
assertIs<NumericLiteralValue>(it4.to, "parser should leave it as is")
|
|
}
|
|
}
|
|
|
|
@Test
|
|
fun testCharLiteralConstValue() {
|
|
val char1 = CharLiteral('A', false, Position.DUMMY)
|
|
val char2 = CharLiteral('z', true, Position.DUMMY)
|
|
|
|
val program = Program("test", DummyFunctions, DummyMemsizer, AsciiStringEncoder)
|
|
assertEquals(65, char1.constValue(program).number.toInt())
|
|
assertEquals(122, char2.constValue(program).number.toInt())
|
|
}
|
|
|
|
@Test
|
|
fun testLiteralValueComparisons() {
|
|
val ten = NumericLiteralValue(DataType.UWORD, 10, Position.DUMMY)
|
|
val nine = NumericLiteralValue(DataType.UBYTE, 9, Position.DUMMY)
|
|
assertEquals(ten, ten)
|
|
assertNotEquals(ten, nine)
|
|
assertFalse(ten != ten)
|
|
assertTrue(ten != nine)
|
|
|
|
assertTrue(ten > nine)
|
|
assertTrue(ten >= nine)
|
|
assertTrue(ten >= ten)
|
|
assertFalse(ten > ten)
|
|
|
|
assertFalse(ten < nine)
|
|
assertFalse(ten <= nine)
|
|
assertTrue(ten <= ten)
|
|
assertFalse(ten < ten)
|
|
|
|
val abc = StringLiteralValue("abc", false, Position.DUMMY)
|
|
val abd = StringLiteralValue("abd", false, Position.DUMMY)
|
|
assertEquals(abc, abc)
|
|
assertTrue(abc!=abd)
|
|
assertFalse(abc!=abc)
|
|
}
|
|
|
|
@Test
|
|
fun testAnonScopeStillContainsVarsDirectlyAfterParse() {
|
|
val src = SourceCode.Text("""
|
|
main {
|
|
sub start() {
|
|
repeat {
|
|
ubyte xx = 99
|
|
xx++
|
|
}
|
|
}
|
|
}
|
|
""")
|
|
val module = parseModule(src)
|
|
val mainBlock = module.statements.single() as Block
|
|
val start = mainBlock.statements.single() as Subroutine
|
|
val repeatbody = (start.statements.single() as RepeatLoop).body
|
|
assertFalse(mainBlock.statements.any { it is VarDecl }, "no vars moved to main block")
|
|
assertFalse(start.statements.any { it is VarDecl }, "no vars moved to start sub")
|
|
assertTrue(repeatbody.statements[0] is VarDecl, "var is still in repeat block (anonymousscope)")
|
|
val initvalue = (repeatbody.statements[0] as VarDecl).value as? NumericLiteralValue
|
|
assertEquals(99, initvalue?.number?.toInt())
|
|
assertTrue(repeatbody.statements[1] is PostIncrDecr)
|
|
// the ast processing steps used in the compiler, will eventually move the var up to the containing scope (subroutine).
|
|
}
|
|
|
|
@Test
|
|
fun testLabelsWithAnonScopesParsesFine() {
|
|
val src = SourceCode.Text("""
|
|
main {
|
|
sub start() {
|
|
goto mylabeloutside
|
|
|
|
if true {
|
|
if true {
|
|
goto labeloutside
|
|
goto iflabel
|
|
}
|
|
iflabel:
|
|
}
|
|
|
|
repeat {
|
|
goto labelinside
|
|
labelinside:
|
|
}
|
|
|
|
labeloutside:
|
|
}
|
|
}
|
|
""")
|
|
val module = parseModule(src)
|
|
val mainBlock = module.statements.single() as Block
|
|
val start = mainBlock.statements.single() as Subroutine
|
|
val labels = start.statements.filterIsInstance<Label>()
|
|
assertEquals(1, labels.size, "only one label in subroutine scope")
|
|
}
|
|
}
|