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tsify ewavr (#4667)
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@mattgodbolt
mattgodbolt committed Feb 1, 2023
1 parent 39b81c9 commit 66549cd
Showing 1 changed file with 58 additions and 40 deletions.
98 changes: 58 additions & 40 deletions lib/parsers/asm-parser-ewavr.js → lib/parsers/asm-parser-ewavr.ts
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Expand Up @@ -22,34 +22,53 @@
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

import {ParsedAsmResult, ParsedAsmResultLine} from '../../types/asmresult/asmresult.interfaces';
import {ParseFiltersAndOutputOptions} from '../../types/features/filters.interfaces';
import {assert} from '../assert';
import {logger} from '../logger';
import {PropertyGetter} from '../properties.interfaces';
import * as utils from '../utils';

import {AsmParser} from './asm-parser';
import {AsmRegex} from './asmregex';

// this file uses null throughout for "not there" not undefined.
type Source = {file: string | null; line: number};
type Line = {text: string; source: Source | null};
type Label = {
lines: Line[];
name: string | null;
initialLine: number;
file: string | null;
require: string[];
};
type ResultObject = {
prefix: Line[];
labels: Label[];
postfix: Line[];
};

export class AsmEWAVRParser extends AsmParser {
constructor(compilerProps) {
private readonly filenameComment = /^\/\/\s[A-Za-z]?:?\S(([^/\\]*[/\\])+)([^/\\]+)$/;
private readonly lineNumberComment = /^\/\/\s*(\d+)\s(?!bytes).*/;

// categories of directives. remove if filters.directives set
private readonly segmentBegin = /^\s*(ASEG|ASEGN|COMMON|RSEG|STACK|SECTION)\s*(.[\w():]*)/;
private readonly segmentControl = /^\s*(ALIGN|EVEN|ODD|ORG|SECTION_GROUP|SECTION_TYPE|DATA)/;
private readonly definesLocal = /^\s*((ASSIGN|DEFINE|LOCAL|ALIAS|EQU|VAR)|(([A-Z_a-z]\w*)=.+))$/;
private readonly miscDirective = /^\s*(NAME|MODULE|PROGRAM|LIBRARY|ERROR|END|CASEOFF|CASEON|CFI|COL|RADIX|THUMB)/;
private readonly dataStatement = /^\s*(DB|DC16|DC24|DC32|DC8|DD|DP|DS|DS16|DS24|DS32|DW)/;
private readonly requireStatement = /^\s*REQUIRE\s+`?\?*<?([A-Z_a-z][\w ]*)>?`?/;

constructor(compilerProps: PropertyGetter) {
super(compilerProps);
this.commentOnly = /^\s*(((#|@|\$|\/\/).*)|(\/\*.*\*\/))$/;
this.filenameComment = /^\/\/\s[A-Za-z]?:?\S(([^/\\]*[/\\])+)([^/\\]+)$/;
this.lineNumberComment = /^\/\/\s*(\d+)\s(?!bytes).*/;

// categories of directives. remove if filters.directives set
this.segmentBegin = /^\s*(ASEG|ASEGN|COMMON|RSEG|STACK|SECTION)\s*(.[\w():]*)/;
this.segmentControl = /^\s*(ALIGN|EVEN|ODD|ORG|SECTION_GROUP|SECTION_TYPE|DATA)/;
this.definesGlobal = /^\s*(EXTERN|EXTRN|IMPORT|EXPORT|PUBWEAK|PUBLIC)\s+(.+)$/;
this.definesLocal = /^\s*((ASSIGN|DEFINE|LOCAL|ALIAS|EQU|VAR)|(([A-Z_a-z]\w*)=.+))$/;
this.miscDirective = /^\s*(NAME|MODULE|PROGRAM|LIBRARY|ERROR|END|CASEOFF|CASEON|CFI|COL|RADIX|THUMB)/;

// NOTE: Compiler generated labels can have spaces in them, but are quoted and in <>
this.labelDef = /^`?\?*<?([A-Z_a-z][\w :]*)>?`?:$/;
this.dataStatement = /^\s*(DB|DC16|DC24|DC32|DC8|DD|DP|DS|DS16|DS24|DS32|DW)/;
this.requireStatement = /^\s*REQUIRE\s+`?\?*<?([A-Z_a-z][\w ]*)>?`?/;
this.beginFunctionMaybe = /^\s*RSEG\s*CODE:CODE:(.+)$/;
}

hasOpcode(line) {
override hasOpcode(line: string): boolean {
// check for empty lines
if (line.length === 0) return false;
// check for a local label definition
Expand All @@ -67,14 +86,14 @@ export class AsmEWAVRParser extends AsmParser {
// check for requre statement
if (this.requireStatement.test(line)) return false;

return !!this.hasOpcodeRe.test(line);
return this.hasOpcodeRe.test(line);
}

labelFindFor() {
override labelFindFor() {
return this.labelDef;
}

processAsm(asm, filters) {
override processAsm(asm: string, filters: ParseFiltersAndOutputOptions): ParsedAsmResult {
// NOTE: EWAVR assembly seems to be closest to visual studio
const getFilenameFromComment = line => {
const matches = line.match(this.filenameComment);
Expand All @@ -98,27 +117,19 @@ export class AsmEWAVRParser extends AsmParser {

const stdInLooking = /<stdin>|^-$|example\.[^/]+$|<source>/;

// type source = {file: string option; line: int}
// type line = {line: string; source: source option}
// type label =
// { lines: line array
// ; name: string | undefined
// ; initialLine: int
// ; file: string option
// ; require: string array }
const resultObject = {
prefix: [], // line array
labels: [], // label array
postfix: [], // line array
const resultObject: ResultObject = {
prefix: [],
labels: [],
postfix: [],
};

let currentLabel = null; // func option
let currentFile;
let currentLine;
let currentLabel: Label | null = null;
let currentFile: string | undefined | null;
let currentLine: number | undefined;

let seenEnd = false;

const definedLabels = {};
const definedLabels: Record<string, number> = {};

const createSourceFor = (line, currentFile, currentLine) => {
const hasopc = this.hasOpcode(line);
Expand All @@ -135,16 +146,18 @@ export class AsmEWAVRParser extends AsmParser {

const checkBeginLabel = line => {
const matches = line.match(this.labelDef);
if (matches) {
if (matches && currentLine) {
currentLabel = {
lines: [],
initialLine: currentLine,
name: matches[1],
file: currentFile,
file: currentFile || null,
require: [],
};
definedLabels[matches[1]] = currentLine;
resultObject.labels.push(currentLabel);
}
return currentLabel;
};

const checkRequiresStatement = line => {
Expand Down Expand Up @@ -190,7 +203,7 @@ export class AsmEWAVRParser extends AsmParser {
if (currentFile === undefined) {
logger.error('Somehow, we have a line number comment without a file comment: %s', line);
}
if (currentLabel != null && currentLabel.initialLine === undefined) {
if (currentLabel !== null && currentLabel.initialLine === undefined) {
currentLabel.initialLine = tmp;
}
currentLine = tmp;
Expand All @@ -203,11 +216,11 @@ export class AsmEWAVRParser extends AsmParser {
currentFile = tmp;
}
if (currentLabel != null && currentLabel.file === undefined) {
currentLabel.file = currentFile;
currentLabel.file = currentFile || null;
}
}

checkBeginLabel(line);
currentLabel = checkBeginLabel(line);
checkRequiresStatement(line);

if (filters.commentOnly && this.commentOnly.test(line)) {
Expand Down Expand Up @@ -242,7 +255,11 @@ export class AsmEWAVRParser extends AsmParser {
return this.resultObjectIntoArray(resultObject, filters, definedLabels);
}

resultObjectIntoArray(obj, filters, ddefLabels) {
resultObjectIntoArray(
obj: ResultObject,
filters: ParseFiltersAndOutputOptions,
ddefLabels: Record<string, number>,
): ParsedAsmResult {
// NOTES on EWAVR function and labels:
// - template functions are not mangled with type info.
// Instead they simply have a `_#` appended to the end, with #
Expand All @@ -257,7 +274,7 @@ export class AsmEWAVRParser extends AsmParser {
const compilerGeneratedLabel = /^(initializer for |segment init: )([\w :]*)$/i;
const segInitLabel = /^segment init: ([\w :]*)$/i;

const result = [];
const result: ParsedAsmResultLine[] = [];
let lastLineWasWhitespace = true;
const pushLine = line => {
if (line.text.trim() === '') {
Expand All @@ -277,6 +294,7 @@ export class AsmEWAVRParser extends AsmParser {

for (const label of obj.labels) {
if (!filters.libraryCode || label.file === null) {
assert(label.name);
const match = label.name.match(compilerGeneratedLabel);
const segInitMatch = label.name.match(segInitLabel);
pushLine({text: '', source: null});
Expand Down

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