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move parsing class and function

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This commit is contained in:
Fabrice Lecomte
2023-06-01 01:48:57 +02:00
parent 691fd888f5
commit aa1435bb4e
11 changed files with 412 additions and 393 deletions
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3
src/main/kotlin/fr/postgresjson/connexion/Requester.kt
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@@ -1,5 +1,6 @@
package fr.postgresjson.connexion
import fr.postgresjson.definition.parse.parseFunction
import fr.postgresjson.utils.searchSqlFiles
import java.net.URI
import fr.postgresjson.definition.Function as DefinitionFunction
@@ -48,7 +49,7 @@ class Requester(
}
fun addFunction(sql: String) {
DefinitionFunction(sql)
parseFunction(sql)
.run { toRunnable(connection) }
.run { functions[name] = this }
}

393
src/main/kotlin/fr/postgresjson/definition/Function.kt
View File

@@ -1,345 +1,36 @@
package fr.postgresjson.definition
import fr.postgresjson.definition.Parameter.Direction
import fr.postgresjson.definition.Parameter.Direction.IN
import fr.postgresjson.definition.parse.ScriptPart
import fr.postgresjson.definition.parse.trimSpace
import java.nio.file.Path
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.InvocationKind.EXACTLY_ONCE
import kotlin.contracts.contract
import kotlin.text.RegexOption.IGNORE_CASE
class Function(
override val name: String,
override val parameters: List<Parameter>,
val returns: Returns,
override val script: String,
override val source: Path? = null,
): Resource, ParametersInterface {
/**
* TEXT, INT, TEXT[], CUSTOM_TYPE => String, Int, List<String>, Any;
* TABLE(id INT, name TEXT) => Object { id: Int; name: String };
* SETOF TEXT => List<String>;
* MY_TABLE.id%TYPE => Any;
* VOID => null;
*/
val returns: Returns
override val name: String
override val parameters: List<Parameter>
@JvmInline
private value class ScriptPart(val restOfScript: String) {
fun copy(block: (String) -> String): ScriptPart {
return ScriptPart(block(restOfScript))
}
fun removeParentheses(): ScriptPart {
return if (restOfScript.take(1) == "(" && restOfScript.takeLast(1) == ")") {
this.copy {
it.drop(1).dropLast(1)
}
} else {
this
}
}
fun isEmpty() = restOfScript.isEmpty()
}
private fun emptyScriptPart(): ScriptPart = ScriptPart("")
private class NextScript<T>(val value: T, val restOfScript: String) {
val nextScriptPart: ScriptPart = ScriptPart(restOfScript)
fun isLast() = restOfScript == ""
fun isEmptyValue() = value == "" || value == null
}
/**
* Return the value as ScriptPart
*/
private fun NextScript<String>.valueAsScriptPart(): ScriptPart = ScriptPart(value)
init {
ScriptPart(script)
.getFunctionOrProcedure().trimSpace().nextScriptPart
.getFunctionName().apply { name = value }.nextScriptPart
.getParameters().apply { parameters = value }.nextScriptPart
.getReturns().apply { returns = value }
}
private fun ScriptPart.getFunctionOrProcedure(): NextScript<String> {
val result = """create\s+(?:or\s+replace\s+)?(procedure|function)\s+"""
.toRegex()
.find(restOfScript)
?: throw FunctionNotFound()
val rest = result.range.last
.let { cursor -> restOfScript.drop(cursor + 1) }
return NextScript(
result.groups[1]!!.value,
rest
)
}
private fun ScriptPart.getFunctionName(): NextScript<String> {
try {
return getNextScript { status.isNotEscaped() && afterBeginBy("(", " ", "\n") }
} catch (e: NameMalformed) {
throw FunctionNameMalformed(null, e)
}
}
@OptIn(ExperimentalContracts::class)
private inline fun ScriptPart.change(block: String.() -> String): ScriptPart {
contract {
callsInPlace(block, EXACTLY_ONCE)
}
return ScriptPart(restOfScript.run(block))
}
data class Status(
var doubleQuoted: Boolean = false, // "
var simpleQuoted: Boolean = false, // '
var parentheses: Int = 0, // ()
var brackets: Int = 0, // []
var braces: Int = 0, // {}
) {
fun isQuoted(): Boolean = doubleQuoted || simpleQuoted
fun isNotQuoted(): Boolean = !isQuoted()
fun isNotEscaped(): Boolean = isNotQuoted() && parentheses == 0 && brackets == 0 && braces == 0
}
data class Context(
val index: Int,
val currentChar: Char,
val status: Status,
val script: String,
) {
fun afterBeginBy(vararg texts: String): Boolean = texts.any {
script.substring(index + 1).take(it.length) == it
}
val nextChar: Char? get() = script.substring(index + 1).getOrNull(0)
}
/**
* Get next part of script.
* You can define a list of characters that end the part of script. Like `(` or space.
*/
private fun ScriptPart.getNextScript(isEnd: Context.() -> Boolean = { false }): NextScript<String> {
val status = Status()
fun String.unescape(): String {
val first = take(1)
val last = takeLast(1)
return if (first == last && first in listOf("\"", "'")) {
drop(1).dropLast(1).replace("$first$first", first)
} else {
this
}
}
for ((index, c) in restOfScript.withIndex()) {
val nextChar = restOfScript.getOrNull(index + 1)
val prevChar = restOfScript.getOrNull(index - 1)
if (c == '"' && (nextChar != '"' && prevChar != '"')) {
status.doubleQuoted = !status.doubleQuoted
} else if (c == '\'' && (nextChar != '\'' && prevChar != '\'')) {
status.simpleQuoted = !status.simpleQuoted
} else if (c == '(' && status.isNotQuoted()) {
status.parentheses++
} else if (c == ')' && status.isNotQuoted()) {
status.parentheses--
} else if (c == '[' && status.isNotQuoted()) {
status.brackets++
} else if (c == ']' && status.isNotQuoted()) {
status.brackets--
} else if (c == '{' && status.isNotQuoted()) {
status.braces++
} else if (c == '}' && status.isNotQuoted()) {
status.braces--
}
if (isEnd(Context(index, c, status.copy(), restOfScript))) {
return NextScript(restOfScript.take(index + 1).unescape(), restOfScript.drop(index + 1))
}
}
if (status.isNotEscaped()) {
return NextScript(restOfScript.unescape().trim(), "").trimSpace()
}
throw ParseError()
}
private fun ScriptPart.split(delimiter: String): List<ScriptPart> {
val parts: MutableList<ScriptPart> = mutableListOf()
var rest: ScriptPart = this
do {
rest = rest.trimSpace()
.getNextScript { status.isNotEscaped() && currentChar.toString() == delimiter }
.trimSpace()
.also { parts.add(it.valueAsScriptPart().trimSpace().trimEnd(',')) }
.nextScriptPart
} while (!rest.isEmpty())
return parts
}
private fun ScriptPart.getNextInteger(): NextScript<Int?> {
val trimmed = restOfScript.trimStart { !it.isDigit() }
val digits = trimmed.takeWhile { it.isDigit() }
val restOfScript = trimmed.trimStart { it.isDigit() }
return NextScript(digits.toIntOrNull(), restOfScript).trimSpace()
}
private fun ScriptPart.getParameters(): NextScript<List<Parameter>> {
val allParametersScript = this.getNextScript {
currentChar == ')' && status.isNotEscaped()
}
val parameterList: List<Parameter> = allParametersScript
.valueAsScriptPart()
.removeParentheses()
.split(",")
.map { it.toParameter() }
return NextScript(parameterList, allParametersScript.restOfScript)
}
private fun ScriptPart.trimSpace(): ScriptPart {
for ((n, char) in restOfScript.withIndex()) {
if (char !in listOf(' ', '\n', '\t')) {
return ScriptPart(
restOfScript.drop(n)
)
}
}
return ScriptPart(restOfScript)
}
private fun <T> NextScript<T>.trimSpace(): NextScript<T> {
val spaces = charArrayOf(' ', '\n', '\t')
return trim(chars = spaces)
}
private fun ScriptPart.trimEnd(vararg chars: Char): ScriptPart {
return this.change { dropLastWhile { it in chars } }
}
private fun <T> NextScript<T>.trim(vararg chars: Char): NextScript<T> {
return NextScript(value, restOfScript.apply { dropWhile { it in chars } })
}
private fun <T> NextScript<T>.changeValue(block: (T) -> T): NextScript<T> {
return NextScript(block(value), restOfScript)
}
private fun <T> NextScript<T>.changeScript(block: (String) -> String): NextScript<T> {
return NextScript(value, block(restOfScript))
}
private fun <T> NextScript<T>.dropOneOf(vararg endTextList: String): NextScript<T> {
return changeScript { script ->
endTextList
.filter { script.startsWith(it) }
.let { script.drop(it.size) }
}
}
private fun ScriptPart.toParameter(): Parameter {
var script: ScriptPart = this.trimSpace()
return Parameter(
direction = script.getParameterMode().apply { script = nextScriptPart }.value,
name = script.getParameterName().trimSpace().apply { script = nextScriptPart }.value.trim(),
type = script.getParameterType().trimSpace().apply { script = nextScriptPart }.value,
default = script.getParameterDefault().trimSpace().apply { script = nextScriptPart }.value,
)
}
private fun ScriptPart.getParameterMode(): NextScript<Direction> {
return when {
restOfScript.startsWith("inout ", true) -> NextScript(Direction.INOUT, restOfScript.drop("inout ".length))
restOfScript.startsWith("in ", true) -> NextScript(Direction.IN, restOfScript.drop("in ".length))
restOfScript.startsWith("out ", true) -> NextScript(Direction.OUT, restOfScript.drop("out ".length))
else -> NextScript(Direction.IN, restOfScript)
}
}
private fun ScriptPart.getParameterName(): NextScript<String> {
try {
return getNextScript { afterBeginBy(" ", "\n") }
} catch (e: NameMalformed) {
throw ParameterNameMalformed(null, e)
}
}
private fun ScriptPart.getParameterType(): NextScript<ParameterType> {
val fullType = try {
val endTextList = arrayOf(" default ", "=", ")")
getNextScript { afterBeginBy(texts = endTextList) }
} catch (e: ParseError) {
throw ParameterTypeMalformed(null, e)
}
var rest: ScriptPart = fullType.valueAsScriptPart()
val name = rest
.getNextScript { afterBeginBy("(") }
.apply { rest = nextScriptPart }
val precision = rest
.getNextInteger()
.apply { rest = nextScriptPart }
val scale = rest
.getNextInteger()
.apply { rest = nextScriptPart }
return NextScript(
ParameterType(
name = name.value.trim(),
precision = precision.value,
scale = scale.value
), fullType.nextScriptPart.restOfScript
)
}
private fun ScriptPart.getParameterDefault(): NextScript<String?> {
return if (this.isEmpty() || this.restOfScript == ")") {
NextScript(null, "")
} else {
"""^(\s*=\s*|\s+default\s+)(.+)\s*$"""
.toRegex(IGNORE_CASE)
.find(restOfScript)
.let { it ?: throw ParameterDefaultMalformed() }
.let { it.groups[2]!!.value }
.let { NextScript(it, "") }
}
}
/**
* TODO Finalize this
*/
private fun ScriptPart.getReturns(): NextScript<Returns> {
return NextScript(Returns.Void(), "")
}
class FunctionNotFound(cause: Throwable? = null): Resource.ParseException("Function not found in script", cause)
class ParameterNotFound(cause: Throwable? = null): Resource.ParseException("Parameter not found in script", cause)
class FunctionNameMalformed(message: String? = null, cause: Throwable? = null):
Resource.ParseException(message ?: "Function name is malformed", cause)
class ParameterNameMalformed(message: String? = null, cause: Throwable? = null):
Resource.ParseException(message ?: "Parameter name is malformed", cause)
class ParameterTypeMalformed(message: String? = null, cause: Throwable? = null):
Resource.ParseException(message ?: "Parameter type is malformed", cause)
class ParameterDefaultMalformed(message: String? = null, cause: Throwable? = null):
Resource.ParseException(message ?: "Parameter default is malformed", cause)
class NameMalformed(message: String? = null, cause: Throwable? = null):
Resource.ParseException(message ?: "Name is malformed", cause)
class ParseError(message: String? = null, cause: Throwable? = null):
Resource.ParseException(message ?: "Parsing fail", cause)
// private fun <T> NextScript<T>.changeValue(block: (T) -> T): NextScript<T> {
// return NextScript(block(value), restOfScript)
// }
//
// private fun <T> NextScript<T>.changeScript(block: (String) -> String): NextScript<T> {
// return NextScript(value, block(restOfScript))
// }
//
// private fun <T> NextScript<T>.dropOneOf(vararg endTextList: String): NextScript<T> {
// return changeScript { script ->
// endTextList
// .filter { script.startsWith(it) }
// .let { script.drop(it.size) }
// }
// }
fun getDefinition(): String = parameters
.filter { it.direction == Direction.IN }
.filter { it.direction == IN }
.joinToString(", ") { it.type.toString() }
.let { "$name ($it)" }
@@ -356,44 +47,4 @@ class Function(
infix fun `is different from`(other: Function): Boolean {
return other.script != this.script
}
sealed class Returns(
val definition: String,
val isSetOf: Boolean,
) {
class Primitive(
definition: String,
isSetOf: Boolean,
): Returns(definition, isSetOf) {
val name = definition
.trim('"')
}
class PrimitiveList(
definition: String,
isSetOf: Boolean,
): Returns(definition, isSetOf) {
val name = definition
.drop(2)
.trim('"')
}
class Table(
definition: String,
isSetOf: Boolean,
val parameters: List<ParameterTable>,
): Returns(definition, isSetOf) {
class ParameterTable(
override val name: String,
override val type: ParameterType,
): ParameterSimpleI
}
class Any(
isSetOf: Boolean,
): Returns("any", isSetOf)
class Void: Returns("void", false)
}
}

3
src/main/kotlin/fr/postgresjson/definition/Resource.kt
View File

@@ -1,5 +1,6 @@
package fr.postgresjson.definition
import fr.postgresjson.definition.parse.parseFunction
import java.io.File
import java.net.URL
import java.nio.file.Path
@@ -23,7 +24,7 @@ sealed interface Resource {
Migration(resource, path)
} catch (e: ParseException) {
try {
Function(resource, path)
parseFunction(resource, path)
} catch (e: ParseException) {
try {
Query(resource, path)

40
src/main/kotlin/fr/postgresjson/definition/Returns.kt Normal file
View File

@@ -0,0 +1,40 @@
package fr.postgresjson.definition
sealed class Returns(
val definition: String,
val isSetOf: Boolean,
) {
class Primitive(
definition: String,
isSetOf: Boolean,
): Returns(definition, isSetOf) {
val name = definition
.trim('"')
}
class PrimitiveList(
definition: String,
isSetOf: Boolean,
): Returns(definition, isSetOf) {
val name = definition
.drop(2)
.trim('"')
}
class Table(
definition: String,
isSetOf: Boolean,
val parameters: List<ParameterTable>,
): Returns(definition, isSetOf) {
class ParameterTable(
override val name: String,
override val type: ParameterType,
): ParameterSimpleI
}
class Any(
isSetOf: Boolean,
): Returns("any", isSetOf)
class Void: Returns("void", false)
}

160
src/main/kotlin/fr/postgresjson/definition/parse/ParsingFunction.kt Normal file
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@@ -0,0 +1,160 @@
package fr.postgresjson.definition.parse
import fr.postgresjson.definition.Function
import fr.postgresjson.definition.Parameter
import fr.postgresjson.definition.Returns.Void
import fr.postgresjson.definition.Parameter.Direction
import fr.postgresjson.definition.Parameter.Direction.IN
import fr.postgresjson.definition.Parameter.Direction.INOUT
import fr.postgresjson.definition.Parameter.Direction.OUT
import fr.postgresjson.definition.ParameterType
import fr.postgresjson.definition.Resource.ParseException
import fr.postgresjson.definition.Returns
import java.nio.file.Path
import kotlin.text.RegexOption.IGNORE_CASE
internal fun parseFunction(script: String, source: Path? = null): Function {
val name: String
val parameters: List<Parameter>
val returns: Returns
ScriptPart(script)
.getFunctionOrProcedure().trimSpace().nextScriptPart
.getFunctionName().apply { name = value }.nextScriptPart
.getParameters().apply { parameters = value }.nextScriptPart
.getReturns().apply { returns = value }
return Function(name, parameters, returns, script, source)
}
@Throws(FunctionNameMalformed::class)
internal fun ScriptPart.getFunctionName(): NextScript<String> {
try {
return getNextScript { status.isNotEscaped() && afterBeginBy("(", " ", "\n") }
} catch (e: ParseException) {
throw FunctionNameMalformed(this, e)
}
}
internal class FunctionNameMalformed(val script: ScriptPart, cause: Throwable? = null):
ParseException("Function name is malformed", cause)
@Throws(FunctionNotFound::class)
internal fun ScriptPart.getFunctionOrProcedure(): NextScript<String> {
val result = """create\s+(?:or\s+replace\s+)?(procedure|function)\s+"""
.toRegex()
.find(restOfScript)
?: throw FunctionNotFound(this)
val rest = result.range.last
.let { cursor -> restOfScript.drop(cursor + 1) }
return NextScript(
result.groups[1]!!.value,
rest
)
}
internal class FunctionNotFound(val script: ScriptPart):
ParseException("Function not found in script")
internal fun ScriptPart.getParameters(): NextScript<List<Parameter>> {
val allParametersScript = this.getNextScript {
currentChar == ')' && status.isNotEscaped()
}
val parameterList: List<Parameter> = allParametersScript
.valueAsScriptPart()
.removeParentheses()
.split(",")
.map { it.toParameter() }
return NextScript(parameterList, allParametersScript.restOfScript)
}
private fun ScriptPart.toParameter(): Parameter {
var script: ScriptPart = this.trimSpace()
return Parameter(
direction = script.getParameterMode().apply { script = nextScriptPart }.value,
name = script.getParameterName().trimSpace().apply { script = nextScriptPart }.value.trim(),
type = script.getParameterType().trimSpace().apply { script = nextScriptPart }.value,
default = script.getParameterDefault().trimSpace().apply { script = nextScriptPart }.value,
)
}
private fun ScriptPart.getParameterMode(): NextScript<Direction> {
return when {
restOfScript.startsWith("inout ", true) -> NextScript(INOUT, restOfScript.drop("inout ".length))
restOfScript.startsWith("in ", true) -> NextScript(IN, restOfScript.drop("in ".length))
restOfScript.startsWith("out ", true) -> NextScript(OUT, restOfScript.drop("out ".length))
else -> NextScript(IN, restOfScript)
}
}
@Throws(ParameterNameMalformed::class)
private fun ScriptPart.getParameterName(): NextScript<String> {
try {
return getNextScript { afterBeginBy(" ", "\n") }
} catch (e: ParseException) {
throw ParameterNameMalformed(this, e)
}
}
private class ParameterNameMalformed(val script: ScriptPart, cause: Throwable):
ParseException("Parameter name is malformed", cause)
@Throws(ParameterTypeMalformed::class)
private fun ScriptPart.getParameterType(): NextScript<ParameterType> {
val fullType = try {
val endTextList = arrayOf(" default ", "=", ")")
getNextScript { afterBeginBy(texts = endTextList) }
} catch (e: ParseError) {
throw ParameterTypeMalformed(this, e)
}
var rest: ScriptPart = fullType.valueAsScriptPart()
val name = rest
.getNextScript { afterBeginBy("(") }
.apply { rest = nextScriptPart }
val precision = rest
.getNextInteger()
.apply { rest = nextScriptPart }
val scale = rest
.getNextInteger()
.apply { rest = nextScriptPart }
return NextScript(
ParameterType(
name = name.value.trim(),
precision = precision.value,
scale = scale.value
), fullType.nextScriptPart.restOfScript
)
}
internal class ParameterTypeMalformed(val script: ScriptPart, cause: Throwable):
ParseException("Parameter type is malformed", cause)
@Throws(ParameterDefaultMalformed::class)
private fun ScriptPart.getParameterDefault(): NextScript<String?> {
return if (this.isEmpty() || this.restOfScript == ")") {
NextScript(null, "")
} else {
"""^(\s*=\s*|\s+default\s+)(.+)\s*$"""
.toRegex(IGNORE_CASE)
.find(restOfScript)
.let { it ?: throw ParameterDefaultMalformed(this) }
.let { it.groups[2]!!.value }
.let { NextScript(it, "") }
}
}
private class ParameterDefaultMalformed(val script: ScriptPart):
ParseException("Parameter default is malformed")
/**
* TODO Finalize this
*/
internal fun ScriptPart.getReturns(): NextScript<Returns> {
return NextScript(Void(), "")
}
class ParseError(message: String? = null, cause: Throwable? = null):
ParseException(message ?: "Parsing fail", cause)

164
src/main/kotlin/fr/postgresjson/definition/parse/ParsingHelper.kt Normal file
View File

@@ -0,0 +1,164 @@
package fr.postgresjson.definition.parse
import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.InvocationKind.EXACTLY_ONCE
import kotlin.contracts.contract
@JvmInline
internal value class ScriptPart(val restOfScript: String) {
fun copy(block: (String) -> String): ScriptPart {
return ScriptPart(block(restOfScript))
}
fun isEmpty() = restOfScript.isEmpty()
}
internal class NextScript<T>(val value: T, val restOfScript: String) {
val nextScriptPart: ScriptPart = ScriptPart(restOfScript)
fun isLast() = restOfScript == ""
fun isEmptyValue() = value == "" || value == null
}
internal fun ScriptPart.removeParentheses(): ScriptPart {
return if (restOfScript.take(1) == "(" && restOfScript.takeLast(1) == ")") {
this.copy {
it.drop(1).dropLast(1)
}
} else {
this
}
}
/**
* Get next part of script.
* You can define a list of characters that end the part of script. Like `(` or space.
*/
@Throws(ParseError::class)
internal fun ScriptPart.getNextScript(isEnd: Context.() -> Boolean = { false }): NextScript<String> {
val status = Status()
fun String.unescape(): String {
val first = take(1)
val last = takeLast(1)
return if (first == last && first in listOf("\"", "'")) {
drop(1).dropLast(1).replace("$first$first", first)
} else {
this
}
}
for ((index, c) in restOfScript.withIndex()) {
val nextChar = restOfScript.getOrNull(index + 1)
val prevChar = restOfScript.getOrNull(index - 1)
if (c == '"' && (nextChar != '"' && prevChar != '"')) {
status.doubleQuoted = !status.doubleQuoted
} else if (c == '\'' && (nextChar != '\'' && prevChar != '\'')) {
status.simpleQuoted = !status.simpleQuoted
} else if (c == '(' && status.isNotQuoted()) {
status.parentheses++
} else if (c == ')' && status.isNotQuoted()) {
status.parentheses--
} else if (c == '[' && status.isNotQuoted()) {
status.brackets++
} else if (c == ']' && status.isNotQuoted()) {
status.brackets--
} else if (c == '{' && status.isNotQuoted()) {
status.braces++
} else if (c == '}' && status.isNotQuoted()) {
status.braces--
}
if (isEnd(Context(index, c, status.copy(), restOfScript))) {
return NextScript(restOfScript.take(index + 1).unescape(), restOfScript.drop(index + 1))
}
}
if (status.isNotEscaped()) {
return NextScript(restOfScript.unescape().trim(), "").trimSpace()
}
throw ParseError()
}
internal fun <T> NextScript<T>.trimSpace(): NextScript<T> {
val spaces = charArrayOf(' ', '\n', '\t')
return trim(chars = spaces)
}
internal fun ScriptPart.trimSpace(): ScriptPart {
for ((n, char) in restOfScript.withIndex()) {
if (char !in listOf(' ', '\n', '\t')) {
return ScriptPart(
restOfScript.drop(n)
)
}
}
return ScriptPart(restOfScript)
}
internal fun <T> NextScript<T>.trim(vararg chars: Char): NextScript<T> {
return NextScript(value, restOfScript.apply { dropWhile { it in chars } })
}
internal fun ScriptPart.trimEnd(vararg chars: Char): ScriptPart {
return this.change { dropLastWhile { it in chars } }
}
internal fun ScriptPart.split(delimiter: String): List<ScriptPart> {
val parts: MutableList<ScriptPart> = mutableListOf()
var rest: ScriptPart = this
do {
rest = rest.trimSpace()
.getNextScript { status.isNotEscaped() && currentChar.toString() == delimiter }
.trimSpace()
.also { parts.add(it.valueAsScriptPart().trimSpace().trimEnd(',')) }
.nextScriptPart
} while (!rest.isEmpty())
return parts
}
/**
* Return the value as ScriptPart
*/
internal fun NextScript<String>.valueAsScriptPart(): ScriptPart = ScriptPart(value)
@OptIn(ExperimentalContracts::class)
internal inline fun ScriptPart.change(block: String.() -> String): ScriptPart {
contract {
callsInPlace(block, EXACTLY_ONCE)
}
return ScriptPart(restOfScript.run(block))
}
internal fun ScriptPart.getNextInteger(): NextScript<Int?> {
val trimmed = restOfScript.trimStart { !it.isDigit() }
val digits = trimmed.takeWhile { it.isDigit() }
val restOfScript = trimmed.trimStart { it.isDigit() }
return NextScript(digits.toIntOrNull(), restOfScript).trimSpace()
}
internal data class Status(
var doubleQuoted: Boolean = false, // "
var simpleQuoted: Boolean = false, // '
var parentheses: Int = 0, // ()
var brackets: Int = 0, // []
var braces: Int = 0, // {}
) {
fun isQuoted(): Boolean = doubleQuoted || simpleQuoted
fun isNotQuoted(): Boolean = !isQuoted()
fun isNotEscaped(): Boolean = isNotQuoted() && parentheses == 0 && brackets == 0 && braces == 0
}
internal data class Context(
val index: Int,
val currentChar: Char,
val status: Status,
val script: String,
) {
fun afterBeginBy(vararg texts: String): Boolean = texts.any {
script.substring(index + 1).take(it.length) == it
}
val nextChar: Char? get() = script.substring(index + 1).getOrNull(0)
}

3
src/main/kotlin/fr/postgresjson/functionGenerator/FunctionGenerator.kt
View File

@@ -1,8 +1,7 @@
package fr.postgresjson.functionGenerator
import com.github.jasync.sql.db.util.length
import fr.postgresjson.definition.Function
import fr.postgresjson.definition.Function.Returns
import fr.postgresjson.definition.Returns
import fr.postgresjson.definition.Parameter
import fr.postgresjson.definition.Parameter.Direction.IN
import fr.postgresjson.definition.Parameter.Direction.INOUT

5
src/main/kotlin/fr/postgresjson/migration/Function.kt
View File

@@ -3,6 +3,7 @@ package fr.postgresjson.migration
import com.github.jasync.sql.db.postgresql.exceptions.GenericDatabaseException
import fr.postgresjson.connexion.Connection
import fr.postgresjson.connexion.execute
import fr.postgresjson.definition.parse.parseFunction
import fr.postgresjson.migration.Migration.Action
import fr.postgresjson.migration.Migration.Status
import java.util.Date
@@ -30,8 +31,8 @@ data class Function(
connection: Connection,
executedAt: Date? = null
) : this(
DefinitionFunction(up),
DefinitionFunction(down),
parseFunction(up),
parseFunction(down),
connection,
executedAt
)

3
src/main/kotlin/fr/postgresjson/migration/MigrationExecutor.kt
View File

@@ -2,6 +2,7 @@ package fr.postgresjson.migration
import com.fasterxml.jackson.core.type.TypeReference
import fr.postgresjson.connexion.Connection
import fr.postgresjson.definition.parse.parseFunction
import fr.postgresjson.migration.Migration.Action
import fr.postgresjson.migration.Migration.Status
import fr.postgresjson.utils.LoggerDelegate
@@ -147,7 +148,7 @@ class MigrationExecutor private constructor(
}
fun addFunction(sql: String): MigrationExecutor {
addFunction(DefinitionFunction(sql))
addFunction(parseFunction(sql))
return this
}

23
src/test/kotlin/fr/postgresjson/definition/FunctionTest.kt
View File

@@ -1,5 +1,6 @@
package fr.postgresjson.definition
import fr.postgresjson.definition.parse.parseFunction
import io.kotest.core.spec.style.FreeSpec
import io.kotest.matchers.collections.shouldHaveSize
import io.kotest.matchers.shouldBe
@@ -7,7 +8,7 @@ import io.kotest.matchers.shouldBe
class FunctionTest: FreeSpec({
"Function name" - {
"all in lower" {
Function(
parseFunction(
// language=PostgreSQL
"""
create or replace function myfun() returns text language plpgsql as
@@ -19,7 +20,7 @@ class FunctionTest: FreeSpec({
}
"first letter caps" {
Function(
parseFunction(
// language=PostgreSQL
"""
create or replace function Myfun() returns text language plpgsql as
@@ -31,7 +32,7 @@ class FunctionTest: FreeSpec({
}
"with numbers" {
Function(
parseFunction(
// language=PostgreSQL
"""
create or replace function myfun001() returns text language plpgsql as
@@ -43,7 +44,7 @@ class FunctionTest: FreeSpec({
}
"escaped name with space" {
Function(
parseFunction(
// language=PostgreSQL
"""
create or replace function "My fun"() returns text language plpgsql as
@@ -55,7 +56,7 @@ class FunctionTest: FreeSpec({
}
"escaped name with double quote in name" {
Function(
parseFunction(
// language=PostgreSQL
"""
create or replace function "My""fun" () returns text language plpgsql as
@@ -67,7 +68,7 @@ class FunctionTest: FreeSpec({
}
"name with new line before and after" {
Function(
parseFunction(
// language=PostgreSQL
"""
create or replace function
@@ -85,7 +86,7 @@ class FunctionTest: FreeSpec({
"Parameters" - {
"One parameter text" - {
val param = Function(
val param = parseFunction(
// language=PostgreSQL
"""
create or replace function myfun(one text) returns text language plpgsql as
@@ -107,7 +108,7 @@ class FunctionTest: FreeSpec({
}
"Two parameters" - {
val param = Function(
val param = parseFunction(
// language=PostgreSQL
"""
create or replace function myfun(one text, two int) returns text language plpgsql as
@@ -131,7 +132,7 @@ class FunctionTest: FreeSpec({
}
"parameters with `character varying(255)`" - {
val param = Function(
val param = parseFunction(
// language=PostgreSQL
"""
create or replace function myfun(one character varying(255)) returns text language plpgsql as
@@ -158,7 +159,7 @@ class FunctionTest: FreeSpec({
}
"parameters with `numeric(16, 8)`" - {
val param = Function(
val param = parseFunction(
// language=PostgreSQL
"""
create or replace function myfun(one numeric(16, 8)) returns text language plpgsql as
@@ -188,7 +189,7 @@ class FunctionTest: FreeSpec({
}
"parameters with default text" - {
val param = Function(
val param = parseFunction(
// language=PostgreSQL
"""
create or replace function myfun(one text default 'example') returns text language plpgsql as

8
src/test/kotlin/fr/postgresjson/functionGenerator/FunctionGeneratorTest.kt
View File

@@ -1,6 +1,6 @@
package fr.postgresjson.functionGenerator
import fr.postgresjson.definition.Function
import fr.postgresjson.definition.parse.parseFunction
import io.kotest.core.Tag
import io.kotest.core.spec.style.StringSpec
import org.amshove.kluent.`should be equal to`
@@ -34,7 +34,7 @@ class FunctionGeneratorTest : StringSpec({
|}
""".trimMargin()
generator.generate(Function(functionSql)) `should be equal to` expectedGenerated
generator.generate(parseFunction(functionSql)) `should be equal to` expectedGenerated
}
"generate function with return void" {
@@ -60,7 +60,7 @@ class FunctionGeneratorTest : StringSpec({
|}
""".trimMargin()
generator.generate(Function(functionSql)) `should be equal to` expectedGenerated
generator.generate(parseFunction(functionSql)) `should be equal to` expectedGenerated
}
"generate function with multiple args and defaults" {
@@ -90,6 +90,6 @@ class FunctionGeneratorTest : StringSpec({
|}
""".trimMargin()
generator.generate(Function(functionSql)) `should be equal to` expectedGenerated
generator.generate(parseFunction(functionSql)) `should be equal to` expectedGenerated
}
})