partials compile. TODO tests

This commit is contained in:
Umur Ozkul 2022-04-17 19:24:39 +02:00
parent 7ab69a1708
commit b1e2b27cee
7 changed files with 128 additions and 48 deletions

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@ -7,8 +7,34 @@ open Expect
let expectParseToBe = (expr: string, answer: string) =>
Reducer.parse(expr)->Expression.toStringResult->expect->toBe(answer)
let expectParsePartialToBe = (expr: string, answer: string) =>
Reducer.parse(expr)->Expression.toStringResult->expect->toBe(answer)
let expectEvalToBe = (expr: string, answer: string) =>
Reducer.evaluate(expr)->ExpressionValue.toStringResult->expect->toBe(answer)
let expectEvalBindingsToBe = (expr: string, bindings: Reducer.externalBindings, answer: string) =>
Reducer.evaluateWBindings(expr, bindings)->ExpressionValue.toStringResult->expect->toBe(answer)
let testParseToBe = (expr, answer) => test(expr, () => expectParseToBe(expr, answer))
let testDescriptionParseToBe = (desc, expr, answer) =>
test(desc, () => expectParseToBe(expr, answer))
let testEvalToBe = (expr, answer) => test(expr, () => expectEvalToBe(expr, answer))
let testDescriptionEvalToBe = (desc, expr, answer) => test(desc, () => expectEvalToBe(expr, answer))
let testEvalBindingsToBe = (expr, bindingsList, answer) =>
test(expr, () => expectEvalBindingsToBe(expr, bindingsList->Js.Dict.fromList, answer))
module MySkip = {
let testEvalBindingsToBe = (expr, bindingsList, answer) =>
Skip.test(expr, () => expectEvalBindingsToBe(expr, bindingsList->Js.Dict.fromList, answer))
let testEvalToBe = (expr, answer) => Skip.test(expr, () => expectEvalToBe(expr, answer))
}
module MyOnly = {
let testEvalBindingsToBe = (expr, bindingsList, answer) =>
Only.test(expr, () => expectEvalBindingsToBe(expr, bindingsList->Js.Dict.fromList, answer))
let testEvalToBe = (expr, answer) => Only.test(expr, () => expectEvalToBe(expr, answer))
}

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@ -0,0 +1,20 @@
open Jest
open Reducer_TestHelpers
describe("external bindings", () => {
MySkip.testEvalBindingsToBe(
"y=1; x+1",
list{("x", ExpressionValue.EvNumber(1.))},
"Ok(2)",
)
MySkip.testEvalBindingsToBe(
// This will go away when we have a proper parser
// x+1 is an expression not a block!
// Bindings are done for blocks only
"x+1",
list{("x", ExpressionValue.EvNumber(1.))},
"Error(JS Exception: Error: Undefined symbol x)",
)
MySkip.testEvalToBe("x=1; y=1", "???")
})

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@ -1,18 +1,6 @@
open Jest
open Reducer_TestHelpers
let testParseToBe = (expr, answer) => test(expr, () => expectParseToBe(expr, answer))
let testDescriptionParseToBe = (desc, expr, answer) =>
test(desc, () => expectParseToBe(expr, answer))
let testEvalToBe = (expr, answer) => test(expr, () => expectEvalToBe(expr, answer))
let testDescriptionEvalToBe = (desc, expr, answer) => test(desc, () => expectEvalToBe(expr, answer))
let testEvalBindingsToBe = (expr, bindings, answer) =>
test(expr, () => expectEvalBindingsToBe(expr, bindings, answer))
describe("reducer using mathjs parse", () => {
// Test the MathJs parser compatibility
// Those tests toString that there is a semantic mapping from MathJs to Expression
@ -105,25 +93,6 @@ describe("eval", () => {
testEvalToBe("1; 1", "Error(Assignment expected)")
testEvalToBe("x=1; x=1", "Error(Expression expected)")
})
describe("external bindings", () => {
testEvalBindingsToBe(
"y=1; x+1",
list{("x", ExpressionValue.EvNumber(1.))}->Js.Dict.fromList,
"Ok(2)",
)
testEvalBindingsToBe(
// This will go away when we have a proper parser
// x+1 is an expression not a block!
// Bindings are done for blocks only
"x+1",
list{("x", ExpressionValue.EvNumber(1.))}->Js.Dict.fromList,
"Error(JS Exception: Error: Undefined symbol x)",
)
testEvalToBe(
"x=1; y=1",
"???",
)
})
})
describe("test exceptions", () => {

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@ -9,4 +9,5 @@ type expressionValue = Reducer_Expression.expressionValue
type externalBindings = Expression.externalBindings
let evaluate = Expression.eval
let evaluateWBindings = Expression.evalWBindings
let evaluatePartialWBindings = Expression.evalPartialWBindings
let parse = Expression.parse

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@ -12,5 +12,13 @@ type externalBindings = Expression.externalBindings
@genType
let evaluate: string => result<expressionValue, Reducer_ErrorValue.errorValue>
@genType
let evaluateWBindings: (string, externalBindings) => result<expressionValue, Reducer_ErrorValue.errorValue>
let evaluateWBindings: (
string,
externalBindings,
) => result<expressionValue, Reducer_ErrorValue.errorValue>
@genType
let evaluatePartialWBindings: (
string,
externalBindings,
) => result<externalBindings, Reducer_ErrorValue.errorValue>
let parse: string => result<Expression.expression, ErrorValue.errorValue>

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@ -42,6 +42,9 @@ let parse = (mathJsCode: string): result<t, errorValue> =>
let parsePartial = (mathJsCode: string): result<t, errorValue> =>
mathJsCode->parse_(MathJs.Parse.parse, MathJs.ToExpression.fromPartialNode)
let parseOuter = (mathJsCode: string): result<t, errorValue> =>
mathJsCode->parse_(MathJs.Parse.parse, MathJs.ToExpression.fromOuterNode)
let defaultBindings: T.bindings = Belt.Map.String.empty
/*
@ -117,30 +120,60 @@ let evalWBindingsExpression_ = (aExpression, bindings): result<expressionValue,
reduceExpression(aExpression, bindings)
/*
Evaluates MathJs code via Reducer using bindings and answers the result
Evaluates MathJs code via Reducer using bindings and answers the result.
When bindings are used, the code is a partial code as if it is cut from a larger code.
Therefore all statments are assignments.
*/
let evalWBindings_ = (codeText: string, bindings: T.bindings) => {
parsePartial(codeText)->Result.flatMap(expression => expression->evalWBindingsExpression_(bindings))
let evalPartialWBindings_ = (codeText: string, bindings: T.bindings) => {
parsePartial(codeText)->Result.flatMap(expression =>
expression->evalWBindingsExpression_(bindings)
)
}
/*
Evaluates MathJs code via Reducer using bindings and answers the result.
When bindings are used, the code is a partial code as if it is cut from a larger code.
Therefore all statments are assignments.
*/
let evalOuterWBindings_ = (codeText: string, bindings: T.bindings) => {
parseOuter(codeText)->Result.flatMap(expression => expression->evalWBindingsExpression_(bindings))
}
/*
Evaluates MathJs code and bindings via Reducer and answers the result
*/
let eval = (codeText: string) => {
parse(codeText)->Result.flatMap(expression => expression->evalWBindingsExpression_(defaultBindings))
parse(codeText)->Result.flatMap(expression =>
expression->evalWBindingsExpression_(defaultBindings)
)
}
type externalBindings = Js.Dict.t<expressionValue>
let externalBindingsToBindings = (externalBindings: externalBindings): T.bindings => {
let keys = Js.Dict.keys(externalBindings)
keys->Belt.Array.reduce(defaultBindings, (acc, key) => {
let value = Js.Dict.unsafeGet(externalBindings, key)
acc->Belt.Map.String.set(key, T.EValue(value))
})
}
/*
Evaluates code with external bindings. External bindings are a record of expression values.
*/
let evalWBindings = (code: string, externalBindings: externalBindings) => {
let keys = Js.Dict.keys(externalBindings)
let bindings = keys->Belt.Array.reduce(defaultBindings, (acc, key) => {
let value = Js.Dict.unsafeGet(externalBindings, key)
acc->Belt.Map.String.set(key, T.EValue(value))
})
evalWBindings_(code, bindings)
let bindings = externalBindings -> externalBindingsToBindings
evalOuterWBindings_(code, bindings)
}
/*
Evaluates code with external bindings. External bindings are a record of expression values.
The code is a partial code as if it is cut from a larger code. Therefore all statments are assignments.
*/
let evalPartialWBindings = (code: string, externalBindings: externalBindings): result<externalBindings, 'e> => {
let bindings = externalBindings -> externalBindingsToBindings
let answer = evalPartialWBindings_(code, bindings)
answer->Result.flatMap(answer => switch answer {
| EvRecord(aRecord) => Ok(aRecord)
| _ => RETodo("TODO: External bindings must be returned")->Error
})
}

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@ -130,12 +130,11 @@ and caseTagOrNodes = (tagOrNodes): result<expression, errorValue> => {
rPreviousBindings->Result.flatMap(previousBindings => {
let rStatement: result<expression, errorValue> = switch tagOrNode {
| BlockNode(node) => fromNode(node)
| BlockTag(tag) => switch tag {
| ImportVariablesStatement =>
passToFunction("$$importVariablesStatement", list{}->Ok)
| ExportVariablesExpression =>
passToFunction("$$exportVariablesExpression", list{}->Ok)
}
| BlockTag(tag) =>
switch tag {
| ImportVariablesStatement => passToFunction("$importVariablesStatement", list{}->Ok)
| ExportVariablesExpression => passToFunction("$exportVariablesExpression", list{}->Ok)
}
}
let bindName = if i == lastIndex {
@ -178,3 +177,27 @@ let fromPartialNode = (mathJsNode: Parse.node): result<expression, errorValue> =
rFinalExpression
})
}
let fromOuterNode = (mathJsNode: Parse.node): result<expression, errorValue> => {
Parse.castNodeType(mathJsNode)->Result.flatMap(typedMathJsNode => {
let casePartialBlockNode = (bNode: Parse.blockNode) => {
let blocksOrTags = bNode["blocks"]->Belt.Array.map(toTagOrNode)
let completed = Js.Array2.concatMany([BlockTag(ImportVariablesStatement)], [blocksOrTags])
completed->caseTagOrNodes
}
let casePartialExpression = (node: Parse.node) => {
let completed = Js.Array2.concatMany(
[BlockTag(ImportVariablesStatement)],
[[BlockNode(node)]],
)
completed->caseTagOrNodes
}
let rFinalExpression: result<expression, errorValue> = switch typedMathJsNode {
| MjBlockNode(bNode) => casePartialBlockNode(bNode)
| _ => casePartialExpression(mathJsNode)
}
rFinalExpression
})
}